2016 PHC News Boiler Report


The Mascot FT combination boiler and water heater offers an Energy Star “Most Efficient” qualified rating of 95 percent AFUE. The system features a robust fire tube heat exchanger and is fully modulating to save fuel. The combi unit produces an endless supply of domestic hot water. The natural gas or LP-fired unit is offered in many sizes and configurations: 120, 140, 175 + 199 MBH combi boiler and water heater, or as an 80, 100, 120, 140, 175 + 199 MBH heating only boiler. Combi models include an integrated mini-indirect tank resulting in superior DHW performance by minimizing temperature fluctuations and providing hot water quickly. 

The integrated mini-indirect tank is always kept charged with hot water. When domestic hot water begins to be used, the boiler fires and immediately begins to produce more hot water. 

Packed with features, the Mascot FT can be ordered as a floor-standing or wall hung unit, includes an easy-to-use advanced control system, a control board protected from moisture, gas leak detection system that will shut down boiler if gas leak detected for added safety, outdoor reset, domestic hot water priority, primeless condensate trap, zero clearance installation, and venting up to 100 feet.  

Visit www.laars.com

Q: Can you describe any new developments in boiler technology that your company made recently? 

A: Laars has invested heavily in R&D and advanced manufacturing techniques to release our unique, American-designed products and make condensing heat exchangers and boiler platforms that meet the requirements of today’s specifying engineers, contractors and building owners. These investments include a new state-of-the-art R&D laboratory with 15 test stations, upgraded robotic welding and machining cells, fiberoptic laser-cutting equipment, and more. We’ve also been busy redesigning many of our control platforms to include intuitive icon driven menu structures to increase the ease of use and setup of our boilers.

Q: What customer feedback have you received about boilers and/or the boiler market?
A: Engineers, contractors and building owners are taking a broader systems approach that better integrates boilers with a building’s heating distribution system. A key attribute to this is tying boiler modulation rates together with outdoor reset measurements and variable speed pumping to optimize total installed efficiency. In response to this need, we developed the proprietary VARI-PRIME control system that seamlessly matches the firing rate of a Laars boiler to its variable speed boiler pump’s flow. The unique VARI-PRIME control functionality balances combustion, air flow and water flow to optimize boiler efficiency per indoor and outdoor conditions. The result is a large reduction in the boiler’s gas and electrical energy consumption and therefore a smaller bill for the building owner. VARI-PRIME is currently available on MagnaTherm and NeoTherm lines, but will soon be available on many of our residential condensing boilers.

Q: What is your outlook or forecast for the boiler market?
A: We’re seeing increased activity in both the commercial and residential markets, particularly regarding our high-efficiency condensing product lines, and we expect this to continue through 2016. However, interest continues in our near condensing, fan-assisted commercial products. Interest in the near condensing category is due to the overall value offered in both installation and operational costs, especially when factoring in low natural gas prices and the reduced availability of high efficiency rebates. Value engineered “hybrid systems” and high efficiency boilers backed up by near condensing boilers are being used more often in the commercial marketplace. The benefit of such a system is that the initial installation cost is lower than a full condensing bank of boilers while maintaining the desired low cost of operation via condensing boilers for the vast majority of heating days.


The high-efficiency Brute LX, is a boiler and tankless water heater combined into one space-saving unit. Energy Star-qualified and available in 10 models from 50 to 220 MBH, the high output of the Brute LX provides reliable home heating and domestic hot water for most homes, while its energy-efficient and low-emission performance reduces heating bills and is better for the environment.

The 95 percent AFUE Brute LX is fully modulating, so it automatically adjusts how much fuel is used to match heat demand, from 20 to 100 percent of full power. The system operates at 100 percent only on the coldest days of the year when demand is at its highest, and modulates down on days requiring less heat. The result can save up to 20 percent on heating utility bills compared to standard “on-off” boilers. 

These models are equipped with an advanced, easy to-use, integrated control system that features a push button input system, a large display for quick set-up and diagnostics, and quick access buttons for temperature control and boiler status. Also provided are options for quick installation, including top or bottom gas and heating connections, zero installation clearance, an included circulator, and the ability to vent up to 150 feet with PVC, CPVC and polypropylene. The Brute LX features low NOx emissions, and models exceed stringent regulations for air quality, and heating efficiency.

Visit www.bradfordwhite.com 

Q: Can you describe any new developments in boiler technology that your company made recently? 
A: Controls are so powerful today that proper setup with some can be a challenge, and with that in mind, Bradford White engineers set out to make the next generation of boiler controls very easy to use. The Brute LX control interface, for example, utilizes easy-to-use-and-understand icons that clearly describe functions and status. Intuitive menu structures that were built from an installer’s perspective group common settings together to reduce jumping from menu to menu. For multiple boiler installations, an “auto-configure” feature senses the installation type and number of boilers, then automatically configures the lead/lag controls with no programming needed by the contractor. Also included is an “auto-handshake” feature that automatically populates parameter sets when a control board or display is replaced. These features and more make for a much improved user experience compared to standard control platforms. 

Q: What customer feedback have you received about boilers and/or the boiler market?
A: Both residential and commercial installers continue to push for higher efficiency and performance and more compact configurations for tighter mechanical spaces. It’s less of an issue for replacement products, but in new space designs, every square inch matters.   Also, demand is growing for more intelligent controls with connectivity features. From the commercial perspective, building managers want easy integration into building management systems that can be supported on-site or remotely. In a similar way, homeowners are also looking to integrate as many of their appliances as possible into their home networks for operation from mobile devices.

Q: What is your outlook or forecast for the boiler market?
A: As boiler performance improves, consumers will want to replace existing systems as a means to reduce energy costs. Also, many federal and state institutions continue to issue mandates in terms of energy use and costs; the result is that facility managers see the need to replace heating and hot water systems to meet the new business standards. Lastly, as was the case with water heaters (NAECA 2015), evolving federal regulations will continue to drive replacements and heating system updates.


ParkerView Lead Lag (PV-LL) panels provide a complete boiler control and monitoring system. They are custom designed for each application and can accommodate the control and monitoring of various equipment. The PV-LL can monitor the system setpoint and stage the boilers to meet the load requirements. There is the ablility to monitor and control boilers, pumps and isolation valves. Multiple panels online give the user access to all the settings and system parameters. PV-LL’s are successfully integrated to many front end BMS software systems and can transmit if the boilers are on, their temperature, system pressure, alarm conditions and other useful information. PV-LL’s come with an 8.4-inch touch screen and IDEC PLC and all the necessary modules installed in a Nema 4 enclosure. A modem is provided for remote access through a phone or computer to a custom-built dashboard. Having a modem installed give the ability to provide live online support during a startup and make any necessary updates to the PLC.   

In 2015, Parker put multiple boiler dashboards online, and is currently helping plant managers and business owners monitor their system online. This provides the opportunity to know if the system is ready for production, or if it needs attending. The custom-designed, web-based monitoring system is designed for boiler systems and other mechanical devices. It is an ideal addition to the PV-LL panels. Through a modem, or proper internet connection, we are able to display online system data including trending of the equipment, temperature, pressure, firing rate, burner status, etc. If an alarm is present, the alarm will display on the boiler dashboard and will send an email or text letting the right people know the reason for the alarm. This can save the owners time and money by being able to schedule maintenance.

Visit www.parkerboiler.com

Q: Can you describe any new developments in boiler technology that your company made recently? 
A: In 2015, Parker obtained State of California Office of Statewide Health Planning & Development (OSP) pre-approval. Certain products are now available with this State of California OSP pre-approval. This means that certain Parker Boilers, Deaerators, Boiler Feed Systems, and Lead Lag Panels can meet Seismic Safety and Building Code Standards. This listing appears on a State of California website.

Q: What customer feedback have you received about boilers and/or the boiler market?
A: The automatic lead lag system that has a gateway, dashboard, cellular and building automation system gateway seems to be the latest trend wanted by owners.

Q: What is your outlook or forecast for the boiler market?
A: Our current backlog is three months, as we continue to see the need for all types of boilers in all industries, such as breweries, wineries, distilleries, metal finishing, institution for space heating, domestic water, food processing, hot oil for processes, and laundry or dry cleaning.


In 2016, a new line of floor-standing KNIGHT fire tube residential boilers was introduced. The advanced KHN KNIGHT boiler features a stainless steel fire-tube heat exchanger and offers AFUE of 95 percent across all models, which range from 55,000 to 285,000 Btu/hr. With up to 10:1 turndown, the firing rate modulates based on demand to eliminate on/off cycling and optimize efficiency and heating comfort.

The KHN KNIGHT boiler is equipped with the SMART SYSTEM control and offers Lochinvar’s exclusive CON·X·US remote connectivity option that allows the contractor or homeowner to monitor and manage the boiler from an internet-capable device. The CON·X·US platform sends alerts via text or email notifying the user of changes in system status and allows for the modification of boiler settings from almost anywhere. 

In addition, the new KNIGHT boiler’s footprint, as well as the placement of connections and vents, is strategically designed to easily allow for drop-in replacement of old, inefficient boilers.

Lochinvar designed the KHN KNIGHT boiler to deliver high-efficiency and advanced technology for a wide range of applications, including energy retrofit installations, where cast iron boilers were previously installed. The new KHN models, which are significantly lighter and more compact than cast iron boilers, streamline the replacement process by simplifying connections and reducing the need for re-piping.

Visit www.lochinvar.com

Q: Can you describe any new developments in boiler technology that your company made recently?
A: Lochinvar is leading the way with boiler technology and efficiency. For example, our exclusive CON·X·US Remote Connect technology enables a contractor to use any internet-capable device to link up with the control from anywhere and is now an option on numerous Lochinvar product lines including the FTXL fire tube boiler, CREST condensing boiler line and the KNIGHT boiler family. We also have a complete line of residential and commercial fire tube boilers, ranging from 55,000 all the way up to 5 million Btu/hr, with third-party certified thermal efficiencies as high as 98 percent. The latest addition to our fire tube family is the floor-standing KNIGHT boiler (KHN).

Q: What customer feedback have you received about boilers and/or the boiler market?
A: Today’s consumers and contractors are expecting boilers to deliver high-efficiency operation, so that’s no longer viewed as a nice-to-have feature but really a standard for a modern boiler. As technology continues to evolve, homeowners and contractors alike are seeking ways to streamline service, monitoring and maintenance of all household equipment, including boilers. We’re continuing to receive great feedback on our CON·X·US Remote Connect technology because it makes everyone’s lives a little easier. One contractor told us that it’s like having another employee in the field.

Q: What is your outlook or forecast for the boiler market?
A: Lochinvar expects the high-efficiency, condensing boiler market to continue to grow.


The Luna Duo-Tec GA is AHRI-rated at 95 percent AFUE. It features automatic gas-adaptive and de-aeration technology, a 7:1 modulating range and continuous self-calibration. It is available in heating-only, or combination heating and domestic hot water mode (producing up to 3.9 gallons per minute, at a 70-degree temperature rise). 

Field-tested throughout North America, the new Baxi Luna Duo-Tec wall-hung boiler is ideal for a range of applications, from in-floor radiant and hydro-air (teamed with a hydronic air handler for both heating and cooling) to high- or low-temperature radiators and snowmelt systems alike.
Other features include: a two-speed modulating pump with built-in air vent generates up to 40 percent reduction in electrical use annually; a stainless steel AISI 318 pre-mixing burner and heat exchanger (10-year warranty) assures longevity; and a stainless steel enhanced secondary heat exchanger (combi model) ensures condensation in domestic hot water mode. The controller has a large backlit digital display on front of  the  boiler makes it easy to set up and service. Other built-in performance and safety features include high limit sensors, low water cut-off, shut-off valves, pressure relief valve, system pressure gauge, expansion tank and auto bypass.

Visit www.wallhungboilers.com

Q: Can you describe any new developments in boiler technology that your company made recently?
A: Precise installation, ease of servicing and reliable performance score big contractor points for the 95 percent AFUE Baxi Luna Duo-Tec modulating, condensing wall-hung gas boiler. Since it was field-tested extensively throughout North America three winters ago, the Luna Duo-Tec GA has emerged as the most advanced high- efficiency boiler on the market. Baxi Luna Duo-Tec GA is manufactured at the state-of-the-art, one-million-square-foot Baxi plant in Bassano, Italy, a major trading partner of the U.S. that has granted Italy permanent normal trade relations status. Installers also appreciate the boiler’s 7:1 modulating range (down to 19,108 BTU/Hr), and its automatic de-aeration function that purges the boiler loop for air before commissioning. In addition to precise self-commissioning, continuous self-calibration (for the life of the boiler) and gas-adaptive technologies in the Luna Duo-Tec, it comes as a “packaged boiler,” a distinct advantage that Marathon International first introduced in the North American marketplace in the late 1990s.  

The comprehensive list of factory-installed and -tested parts that are built into the Luna Duo-Tec GA boiler include: a two-stage modulating pump, vent and termination, low water cutoff, valve fitting package, air separators, expansion tank, relief valves and back-flow preventer. These built-in components also provide a sizable pricing advantage when compared to other boilers that require the purchase and installation of some or all of those parts.

Marathon International, the exclusive distributor of Baxi products in NA since 1996, is successfully completing field testing of two new Luna Duo-Tec light commercial wall-hung boilers. The new light commercial boilers feature 10:1 and 7:1 turndown ratios respectively, and approved cascade venting for up to six boilers.

Q: What customer feedback have you received about boilers and/or the boiler market?
A: Baxi distribution partners and contractors are delighted with new engineering advancements. They especially appreciate a high level of installation and troubleshooting training, and readily accessible technical support from field representatives as well as the North American distributor. In addition, Baxi contractors and service technicians may take training and certification courses and access technical resources online, 24/7, in the certified section. Certified installers may offer their customers a range of “peace of mind” benefits, including double the parts warranty, and an optional 10-year extended parts and labor warranty.

Q: What is your outlook or forecast for the boiler market?
A: All wall-hung boiler manufacturers must demonstrate proven and ongoing commitment to providing and supporting safe, reliable and environmentally responsibile heating solutions. Authorized Baxi distribution partners throughout North America are enabling a growing network of trained and certified contractors to succeed in delivering that promise.


The K2 fire tube condensing boiler joins the K2 Watertube boiler that was released in 2014. The 95 percent AFUE K2 fire tube boiler features a stainless steel vertical fire tube heat exchanger and is offered in six sizes, from 85-270 MBH. A combi version is also available (155 MBH). The K2 series is “the boiler designed with you in mind.” The K2 fire tube starts with an ergonomically angled touch-screen display, which interfaces with the proven Sage2.2 boiler control system, offering “out-of-the-box” high performance. Additional contractor-friendly features include a 3-in-1 vent connection, top or bottom supply/return/gas connections, a split voltage junction box with fused connection boards, and a convenient full height side access panel.

Altogether, the depth and breath of condensing boilers available from U.S. Boiler is difficult to match. From sizes as small as 80 MBH up to an impressive 800 MBH, with multiple heat exchanger options, and choice of wall-hanging or floor-mounted configurations, U.S. Boiler offers a large selection of American-made condensing boiler options to the industry.


Q: Can you describe any new developments in boiler technology that your company made recently?
A: Our newly-opened engineering and technology center represents a very significant stake in the development and testing of new products and technologies. It has significantly increased the capacity of the department, and has enabled the simultaneous release of two new products already in 2016.

Q: What customer feedback have you received about boilers and/or the boiler market?
A: Our customers have told us that they want to have more options in condensing boilers. We responded by introducing a fire tube boiler, a highly competitive value-priced condensing boiler, and commercial condensing boiler models up to 800 MBH.

Q: What is your outlook or forecast for the boiler market? 
A: Condensing boiler products have been the driving force in the market for the better part of a decade and will continue to do so for the foreseeable future. An interesting counterpoint to this arose last year as oil prices cycled downward, rekindling demand for cast iron oil. If commodity prices remain at similar levels in the near term, this trend will likely continue.  


The latest member of the VMax fire tube line of condensing modulating gas boilers is the VMax 153 Plus. The VM153P incorporates a stainless steel down fired fire tube heat exchanger with an input 154mbh coupled with an internal 16-gallon indirect water heater providing nearly 4 gpm of continuous domestic hot water at a 700 Delta-T.

This boiler features an integrated circulator with an integrated primary loop reducing installation time and the need for a boiler circulator and addition closely spaced tees or low loss header. The integrated diverter valve diverts the boiler water for DHW or central heat production. On the non-combi VM-153 model these features remove the need for a required DHW circulator for the production of DHW through an external indirect water heater.

The VM-153P and VM-153 are 95 percent AFUE with a 10:1 turndown ratio. Other features include ASME construction, wall-mounting, lead lag capability, warm weather shut down, outdoor reset with sensor, condensate pump receptacle, freeze protection, on-off power service switch, lockout and error history, three circulator outputs and quick connect components for easy service. For both models, an optional floor stand is available.

As with all NTI gas condensing boilers, a 14,000V spark ignition transformer is included to ensure the best ignition on the market, reducing the need to change the spark ignitor for over five years. All models are field convertible to LP gas and come with the conversion kit in each box.
All NTI gas condensing boilers are live-fire tested and factory-calibrated, assuring you receive a working boiler in every box. All of the condensing gas boilers come with a limited lifetime heat exchanger warranty and a 5-year parts warranty. 

Visit www.ntiboilers.com

Q: Can you describe any new developments in boiler technology that your company made recently? 
A: After over three years of development, we are currently starting the production of our new FTG line of commercial stainless steel fire tube gas modulation condensing boilers that will range from 600MBH to 2,400MBH input using a single burner and having up to a 10:1 turndown ratio. They are fully CSD-1 compliant and will fit through a standard 36-inch man door.

Q: What customer feedback have you received about boilers and/or the boiler market?
A: We hear on a daily basis that our customers love the quality and dependability of our boilers. In that rare case that our customers need it, they rave about our customer service and technical departments.

Q: What is your outlook or forecast for the boiler market?
A: We continue to see the rise in the high efficiency market. We firmly believe that the future for gas boilers is away from cast iron standard-efficiency boilers and into the high-efficient modulating condensing boilers. Because of this we continue to develop and grow our models and features available to satisfy every niche of the market.


The recent release is a new touch-screen control for the MVB and XTherm product lines. The 7-inch touch-screen display is full-color and includes animations to show water flow and pumps running. Commissioning a boiler is now easier and troubleshooting more straightforward. A touch-screen user interface is a lot easier to use and understand. The display drives the state-of-the-art VERSA IC boiler control.

The all-new XTherm vertical modulating condensing boiler combines time-honored, high-recovery copper fin technology with cutting-edge control and combustion advancements. The installer and building owner enjoy broad installation flexibility, easy commissioning, optimum seasonal efficiency and long-term reliability. The small footprint saves space for those cramped retrofit projects. It’s Built to last, with industrial-grade construction and user-friendly serviceability. Extreme burner turndown produces up to 99 percent efficiency at low fire when it’s most needed. 
XTherm products take their jobs seriously. On the outside the muscular powder-coated, steel cabinet provides clean proportions with a strong, unrivaled weather-resistant design. An inside look reveals the XTherm’s hybrid heat exchanger system design. The vertically-stacked and robust copper main heat exchanger delivers maximum non-condensing efficiency that works seamlessly with our new state-of-the-art stainless steel, commercial-grade condensing heat exchanger. Maximum synergy is maintained throughout the complete XTherm heat exchange system with Cold Water Protection System, a proven design approach that ensures the XTherm is built for even the longest days of work, while saving the maximum amount of energy every time it is used.

Visit www.raypak.com

Q: Can you describe any new developments in boiler technology that your company made recently?
A: The U.S. Department of Energy has made sweeping regulatory changes in recent years affecting appliances that consume a lot of energy in a home, like HVAC equipment and water heaters, which we manufacture. At the same time, end users are also demanding more energy-efficient systems. Along with fuel energy efficiency we are also seeing a demand for boilers to operate at lower water flow rates, which now means a greater turndown ability is demanded by the system design. The lower flow rates are being driven by energy-efficient pump systems using variable speed technology to match the system load requirements.

Q: What customer feedback have you received about boilers and/or the boiler market?
A: More and more customers are turning to higher efficiency residential appliances. We have adjusted our product offering over the years to now include stainless steel condensing high efficiency boilers. With that in mind, we are now fully focused on continuing to develop new and progressive high efficiency products. Each new boiler we design brings unique design and application challenges. We learn so much from each project and how it performs in real life which leads us to a more robust and mature design on each new product. The learning never stops, and the technology keeps improving.

Q: What is your outlook or forecast for the boiler market?
A: Raypak’s engineers and product development team accepted the high efficiency challenge as a great opportunity to expand and advance our heater design capabilities. We took our industry-leading copper technology and leveraged that design strength moving forward with the use of more exotic materials to help achieve higher efficiency while still making a robust heater. But what many people don’t realize is how much of a challenge there is in keeping up with Building Management System (BMS) integration. As the move toward green buildings increases, not only are the boilers becoming more fuel-efficient, but so are the computer systems that coordinate and control all of the energy driven devices in a building. Being able to seamlessly integrate with multiple brands of BMS is becoming the norm by today’s standards. Raypak has worked tirelessly to bring to market our Versa IC control that works with many popular BMS and also offers multi-unit connectivity.

The boiler market today is not the one it was 20 years ago. Boilers have become much more energy-efficient and integrated into on-site BMS. A boiler technician today needs to keep up with manufacturer training in order to stay relative to the products. Raypak provides excellent boiler training throughout the year on all its boilers. Although we try to make our boilers as plug-and-play as possible, having the right training today goes a long way to understanding today’s boiler technology.

The way the boiler market is heading, companies are working harder to be able to offer building owners and facility managers more rebates and government incentives. Companies are realizing the importance of energy-saving appliances because it reduces overhead cost. High efficiency products are not just another offering in a manufacturer’s line-up; they are becoming the backbone of their product focus. These products are becoming a must-have appliance in new construction as well as seriously looked at in the replacement market.


The NHB boiler builds on Navien’s recent successful product lines. The Navien Heating Boiler (NHB) is available in four sizes: NHB-55, NHB-80, NHB 110 and NHB-150 with turndown ratios respectively of 7:1, 10:1, 11:1, and 15:1. The noteworthy 15:1 TDR in the NHB-150 is achieved with advanced burner system. One key component to that efficiency is the newly-developed dual Venturi gas delivery system. The two largest condensing boilers, NHB-110 and NHB-150, can be cascaded and common-vented up to 16 units.

The NHB has industry-leading options and features in the boiler operation parameters such as: a large turndown ratio providing ease of installation with multiple smaller zones, while maintaining high operational efficiency; a timed hydronic supply water boost feature; adjustable heat capacity and anti-cycle timer; freeze protection; pressure LWCO with manual reset; and more. This product offers the installer an opportunity to achieve a true high-efficiency installation.

An engineering- and technology-driven company, Navien has invested heavily in R&D over the past 36 years, resulting in a host of technologically advanced products. The company is proud to be offering this advanced wall-hung condensing heating technology in North America. The company name is derived from three words, Navigator, Energy and Environment, with a mission to provide customers with the ultimate comfortable living environment through energy-efficient products by using innovative technology to create a healthier environment for our future generations.

Visit www.navien.com

Q: Can you describe any new developments in boiler technology that your company made recently? 
A: Our soon-to-be-released NaviLink system allows wireless integration and smartphone remote monitoring of all Navien equipment. This would be beneficial for off-site monitoring of boiler systems both residential and light-commercial. NaviLink will allow system monitoring, operation viewing and alerts to possible errors that will make it convenient for off-site monitoring and checking in on the boiler(s) as well as our other gas-fired products. 

Q: What customer feedback have you received about boilers and/or the boiler market?
A: Installation training continues to remain on the forefront of assuring proper installation and system operation. With the vast amount of system programmable capabilities, a proper installation no longer means to just hook it up and turn it on. With adjustable parameters included with many boilers, proper programming and set up is key to boiler proper installations to assure desired efficiency and equipment life expectancy. 

Q: What is your outlook or forecast for the boiler market?
A: There has been a tremendous influx of new boiler offerings and types of boilers introduced and available for the installing sector this past year. Leading the charge is the wall-hung condensing and the fast-growing combi boiler segment. With the vast offerings at competitive pricing, we expect the hydronic industry as a whole to rise up and see some significant growth in the near future. 


The Multi-Fuel Condensing (MFC) hydronic boiler brings high reliability and cost efficiency to projects and facilities requiring backup fuel. Capable of being fired with natural gas, propane or No. 2 fuel oil, the MFC is designed for condensing applications in closed loop hydronic systems designed into health care buildings, military bases, emergency shelters, industrial operations and similar facilities.

Six MFC models ranging from three to 10 million BTU/hr capacities are available. Each unit addresses the market need for solutions that help facility owners and managers achieve greater return on investment (ROI) for heating systems. The boilers have 5:1 turndown ratio when firing on natural gas or propane. A proven 4-pass fire tube heat exchanger is designed for maximum heat transfer and helps the MFC achieve a high operating efficiency of up to 96 percent.

Boiler maintenance and system lifetime costs are lowered by the MFC units, which are constructed of the highest quality material. An extremely durable heat exchanger built with a combination of high-quality carbon steel and 316Ti stainless steel offers superior corrosion resistance against acidic flue gas condensation. The heat exchanger’s maximum working temperature of 240 F allows it to meet the requirements of higher temperature applications. Additionally, it allows for the system to reset water temperature for condensing in the colder months.

Fitted with power burners, the MFC’s emissions are low while its fully modulating capability helps the solution achieve high energy efficiency, longevity and reliability. Standard dual returns provide greater flexibility, as well as optimize plant efficiency by lowering water return temperatures for a reduction in energy costs, including up to 12 percent savings on seasonal efficiency. The MFC boiler can be used as an individual unit or in modular arrangements that offer selectable modes of operation. In addition to controlling the boiler according to a constant set point, indoor/outdoor reset schedule or 0-10V signal, one or more units can be integrated via Modbus communications protocol. 

For systems containing two or more units, AERCO also offers an available sequencing controller designed to optimize plant efficiency. The MFC series can be used with the Tekmar Boiler Control 284, which can operate up to four boilers to accurately maintain a target water temperature and create a flexible, cost-effective mixed boiler plant solution. It communicates with a Building Automation System (BAS) using BACnet or Modbus for remote monitoring and adjustment capability. 

Visit www.aerco.com

Q: Can you describe any new developments in boiler technology that your company made recently? 
A: The patented AERtrim system is the latest AERCO development that will be available Fall 2016 on new Benchmark boilers. The innovative AERtrim system is a trim system designed exclusively for condensing boiler applications, built on the Benchmark’s original monitoring system. No matter what unexpected site conditions changes may occur, this system will ensure that air-fuel ratios are maintained at optimum levels for peak efficiency and maximum uptime reliability.

Q: What customer feedback have you received about boilers and/or the boiler market? 
A: Customers today expect not only greater efficiency and performance out of their boilers, but also intuitive and intelligent controls which interface easily with network systems. Customers are not just interested in whether their boiler plant is simply functioning, but rather interested in the tools and services that allow them to monitor performance and make adjustments when necessary to maintain optimum efficiency and operation. To this end, AERCO is currently developing a new control for our systems scheduled to deliver next year.

Q: What is your outlook or forecast for the boiler market? 
A: Within the last year, AERCO has witnessed healthy growth in the condensing boiler market and expects this trend to continue. The percentage of new buildings being designed with high efficiency, condensing systems is growing. Likewise, buildings with aged, near end-of-life systems are being replaced with high efficiency, condensing systems at an upward rate, and are expected to reach double digit percentage rates in the coming years.   


The Accel CS is often installed just like a conventional boiler, and because it’s stand-mounted, pre-piped, and pre-wired, installation is even faster and easier. Accel CS is made in the U.S. specifically for replacing old cast iron technology, with wide open water and flue passes (although contractors also appreciate it as an upgrade over other condensing boilers). There’s no need for a dedicated primary secondary circulator just for the boiler itself, improving condensing rates and reducing complexity.

Durable construction and ease of installation are just a few of the reasons why contractors choose Accel CS. At over 70 pounds, the pressure vessel is truly a heavyweight champion in an arena of lightweights. The high-grade stainless steel pressure vessel is built for long life with U.S. stainless steel and exceptional ASME construction with robotic welding technology.

The Auto Express settings mean setup is quick and easy. Accel CS is customizable with simple options to suit all installation requirements.
The boiler components, including the pressure vessel, burner, plate heat exchanger, circulator, controls and more are all comprehensive. Accel CS is stand-mounted and ready to go out of the box, so no wall construction is necessary.

The unique fire tube design stays cleaner longer by condensing more on every cycle with the help of our thermal purge control and by condensing through the whole hot water cycle. Standard controls include five zones, with an option for 12 zones with expansion to cascading systems for multiple boilers. Available in three sizes: 120 MBH, 200 MBH and 399 MBH.

Visit http://energykinetics.com

Q: Can you describe any new developments in boiler technology that your company made recently?
A: Our Accel CS has new technology that is advanced enough to be simple. These boilers are easier to install with either a boiler base or wall mount, and the development of Auto Express options makes setup a snap. Our technology allows installers to set aggressive temperature reset curves which auto adapt to loads, preventing call backs and optimizing performance. Combined with our thermal purge, the Accel CS delivers on exceptional performance without complexity.

Q: What customer feedback have you received about boilers and/or the boiler market?
A: We often hear that all of our designs, including our stainless steel Accel CS modulating condensing boiler with wide open water and flue passes, have simple controls with easy diagnostics, installation and setup. Many installation companies, technicians and consumers who have lived with condensing boiler technology over the past two decades have seen frequent changes in other boiler designs along with a wide array of controls and related installation complexity. Often, these other boiler models have very tight flue passes and water passes which may be followed by less than anticipated longevity, more installation complexity and higher service costs. 

Q: What is your outlook or forecast for the boiler market?
A: Consumers have adjusted their response to changes in fuel prices, which has resulted in a dramatic reduction in oil-to-gas boiler conversions. In many markets well-served with boiler technology, natural gas, propane and oil, fuel prices have become very competitive. We see this supporting growth as another strong incentive for consumers to purchase our high-efficiency System 2000 and 90-plus Resolute heating systems, which can be converted between oil and gas fuels with a burner change. 


The new Modulating Artificial-Intelligence Condensing (MAC) boiler is a high-efficiency modulating condensing boiler. It is available in combi and heat-only versions. In domestic hot water mode, the combi boiler will fire at 153 mBTUh and provide up to 3.5 gallons/minute of domestic hot water. Both versions are rated at 125 mBTUh for central heating. 

Some of the other features of the MAC include: 95 percent AFUE Energy Star Most Efficient Boiler rating; artificial intelligence boiler control; self-commissioning; recognizes natural or LP gas operation and self-adjusts without field conversion kit; continuously calibrates combustion by adjusting air / fuel ratios automatically; 7:1 turndown combi model DHW mode; 5.7:1 turndown combi and heating model in CH mode; 316L stainless steel tube heat exchanger and premix burner; and more.

The combi version also features: stainless steel brazed plate heat exchanger; automatic three-way diverting valve with anti-seize prevention; 3.5 gallons per minute at 70-degree rise; and pre-heat function speeds delivery of hot water and reduces DHW sandwiching. Optional items include coaxial vent kits, polypropylene vent pipe and concentric terminations, outdoor air sensors and indirect tank sensors.

Visit www.ecrinternational.com

Q: Can you describe any new developments in boiler technology that your company made recently?  
A: The newly released ECR condensing combi boiler will feature a control system called AI (artificial intelligence). The AI control is able to determine the fuel being supplied to the boiler LP or natural gas and automatically commission the boiler. The control continuously calibrates combustion by adjusting air/fuel ratios. The proper gas air mixture optimizes combustion resulting in fuel savings and less maintenance costs. 
Q: What customer feedback have you received about boilers and/or the boiler market? 
A: Contractors have realized that the high efficiency segment of the market is where the growth potential is. They continue to look for features that simplify and speed up the installation and setup of boilers. “Smart Controls,” simple piping and quick connections are some of the ways we accommodate them.

Q: What is your outlook or forecast for the boiler market?  
A: Continued growth in the overall condensing boiler market segment. The popularity of combi condensing boilers will continue to spur this growth trend.  


The new Raptor and Shadow models of boiler offer wholesalers and contractors a full line of highly efficient condensing boilers from one source with exciting new designs and features.

The stainless steel, gas-fired Raptor is Velocity Boiler Works first fire tube design for natural or LP gas offering superior efficiency and performance with a 95 percent AFUE. The boiler is available in five sizes — 85, 110, 155, 205 and 270 MBH. A 155-MBH combi model is also available featuring a thermostatic mixing valve and brazed plate heat exchanger.

All Raptors include a user-friendly, touch-screen interface, 5:1 turndown ratio and an outdoor reset function to ensure top performance in response to demand and outdoor temperature changes.

The Raptor and Raptor combi offer home heating and optional domestic hot water built on world-class engineering. To meet demand for a smaller, lighter, high-efficiency, stainless steel condensing boiler that can be installed quickly and used immediately, Velocity Boiler Works designed the Shadow. The wall-mounted Shadow is a gas-fired, condensing boiler that pairs high efficiency with impressive ease of installation and operation. It is available in five sizes — 80, 100, 120, 150 and 180 MBH. The compact and lightweight design includes a modulating burner with a 5:1 turndown ratio and an LCD display, offering a clean and simple boiler that is easy to operate. A combi version of the Shadow is in development for release in heating season.

The Shadow’s streamlined plug-and-play design was made specifically for fast installation and setup. With the addition of the Raptor, Raptor combi and Shadow, the line of condensing boilers has been expanded to meet every segment of the market.

Visit velocityboilerworks.com

Q: Can you describe any new developments in boiler technology that your company made recently? 
A: We are introducing our first fire tube-style condensing boiler this year. We have also taken this technology one step further by expanding beyond a heat-only boiler by developing a combi boiler based on the fire tube heat exchanger platform. 

Q: What customer feedback have you received about boilers and/or the boiler market?
A: The budget segment has traditionally been dominated by atmospheric cast iron boilers. Now it is starting to be driven by lower priced condensing products. These products may have fewer features than high-end condensing boilers, but they offer higher AFUE ratings that qualify for rebates to help offset the price premium over cast iron boilers. There is also an increase in demand for combi boilers.

Q: What is your outlook or forecast for the boiler market?
A: The largest part of the boiler market is the replacement market, which took a hit last year. There could be several reasons for the decrease in demand: weather, economy and business pulled forward from past years due to extreme weather like Superstorm Sandy. Velocity Boiler Works maintains a positive outlook on the coming heating season, provided we get a little cooperation from Mother Nature.


The SL Series condensing boilers come in a size for every application. Residential models include: SL 20-115 20,000 to 115,000 BTU/HR; SL 28-160 28,000 to 160,000 BTU/HR; SL 35-199 35,000 to 199,000 BTU/HR; and SL 45-260 45,000 to 260,000 BTU/HR. Commercial models include: SL 80-399 80,000 to 399,000 BTU/HR. There is 95 percent AFUE on residential models.

The models feature an advanced and flexible touch-screen controller with express set up and remote monitoring and diagnostics, as well as easy USB programmability. Other features include: true native BACnet; intuitive alert system; easy homeowner DHW temp adjust; multiple zone pump control up to four zones; supply and return connections on both side of the SL 20-115 & SL 28-160; safety limits on the heat exchanger and burner plate; custom baffling around the fire chamber to ensure even heat transfer and long life; and more. 

Visit www.ibcboiler.com

Q: Can you describe any new developments in boiler technology that your company made recently?
A: Our exclusive V-10 touch-screen controller can now control multiple temperatures and up to four zones, eliminating the need for a zone control panel.

Q: What customer feedback have you received about boilers and/or the boiler market?
A: Touchscreen interfaces are now a permanent part of the fundamental language of human and technological interaction. Customers expect this interaction to now be available in the boiler market. With the latest in control technology the IBC SL Series touch-screen controller has made this interaction intuitive for both the contractor and homeowner.

Q: What is your outlook or forecast for the boiler market?
A: We anticipate the condensing market to continue to grow and represent a far greater percentage of the overall boiler industry. Increasing demand for green building design, lower operating costs, higher efficiency, awareness of energy-efficient products, governmental policies and incentive schemes will all contribute to this growth.


The new sealed combustion high-efficiency stainless steel boiler line offers condensing technology. The Buderus SSB Series consists of a total of eight models in four separate cabinet sizes with inputs ranging from 85MBH up to 1024MBH, and are applicable for use in small studio units all the way up to commercial buildings. Bosch introduced the new SSB Series mid-size range 255, 399 and 512 MBH models initially, and in mid-2016 will introduce 85, 120, 160 MBH residential models, followed by 819 and 1024 MBH commercial sizes. 

The Buderus SSB Series is designed as a modular platform for commonality and familiarity for the installer, for quick and easy installation in various applications. The platform commonality also reduces the number of unique spare parts in inventory. SSB225 (residential) model is rated at AFUE 96 percent, while SSB339 and SSB512 (commercial range) are both rated at 96.8 percent thermal ffficiency. All sizes have a turndown ratio of 5:1, delivering precise load matching and ultimate efficiency. 

These boilers, which can be cascaded, feature a proprietary ASME SA-240 stainless steel type 316L heat exchanger and an integrated premix burner and a pneumatic air-gas system for optimized combustion. They can be vented using CPVC, PVC, PP, PP Flex, stainless steel AL29-4C, IPEX type IIA & IIB for use with single-pipe, two-pipe or concentric configuration. Buderus SSB boilers have a 5:1 turndown, an on-board control that includes weather compensation, mod-bus connectivity, a two-wire cascades link, plus terminal wiring.

They also feature a factory installed low-water-cutoff (LWCO) and safety temperature high limiter with a manual reset to speed installation. Also pre-installed in the larger units (sizes 512 to 1024 MBH) are CSD-1 compliant low and high gas pressure switches. The larger commercial size units feature size-by-side twin heat exchangers for efficiency and redundancy. 

Visit www.boschheatingandcooling.com

Q: Can you describe any new developments in boiler technology that your company made recently? 
A: The new Buderus SSB Series of condensing stainless steel boilers was specifically tailored by Bosch to provide all the same features and benefits from a small residential boiler through a large commercial cascade application. A single platform design for all Buderus SSBs makes installation and commissioning easy, regardless of the output required.

With an efficiency of 96 percent, the Buderus SSB is equipped with standard features that include up to 10:1 turndown ratio; on-board control that includes weather compensation; mod-bus connectivity; a two-wire cascades link; practical control solutions for any application; push terminal wiring; and a host of venting options. 

The wall-mounted Greenstar boiler from Bosch Thermotechnology Corp. is available in a floor-standing (FS) version for all eight models. Greenstar FS models are ideal for use in applications where wall-mounting options are not feasible or a floor-standing unit is preferred.  

Along with the Greenstar FS boiler, Bosch introduced a new system control (NSC) package of intelligent modules designed to control multiple zones and reduce zone “on-off” boiler cycling for increased indoor comfort and greater energy savings. NSC control modules are similar to wiring and installation of a basic on-off system but designed to communicate a reduced target supply temperature, thereby increasing comfort and decreasing energy consumption.

With Wi-Fi capabilities being the current demand trend, Bosch has also introduced its Bosch Control Smart Thermostat. The Bosch Control Smart Thermostat uses a home Wi-Fi connection to allow heating and domestic hot water to be monitored and adjusted from any compatible smartphone or tablet. The device is a programmable room thermostat with integrated temperature sensor and boiler controller in one simple-to -se device, enabling the user to monitor and control boiler function remotely using a mobile device or tablet. 

The sleek, black glass, wall-mounted rectangular panel is simple to install and connects to any Bosch or Buderus wall-mounted condensing gas boiler using standard two-wired connections.
Q: What customer feedback have you received about boilers and/or the boiler market? 
A: Contractors have been telling us they want a direct replacement high efficiency condensing gas boiler with flexible venting options. The new Greenstar FS meets that demand and can be vented using polypropylene (PP), flexible PP chimney liner, and concentric PP kit, PVC or CPVC.

Q: What is your outlook or forecast for the boiler market? 
A: Demand for standard efficiency or oil-fired equipment is stagnating. The double-digit growth we’re experiencing is for high efficiency gas-fired equipment. Consumers are also asking for communicating controls to allow monitoring and controlling their heating/hot water using a mobile device or tablet. There is also a strong trend to cascading wall-mounted boilers for use in larger homes and light-commercial spaces. 

We see more of a continuing shift to higher energy-saving boilers like condensing models and combi boilers. A combi boiler saves time on installation and reduces the need for more equipment to produce space heat and domestic hot water. With our combi boilers and condensing tankless water heater offerings, Bosch is well positioned within the 90-plus percent efficiency side. We also realize that where utility and other rebates don’t exist, the cast iron replacement 80-plus efficiency product offerings will continue to sell, especially for older homes with chimneys and where direct-vent applications may not be possible or feasible. Otherwise more customers are moving to modulating condensing boilers for their energy saving efficiency.


High output indirect water h in 60, 80 and 115 gallon sizes are made for high-demand residential and commercial applications. “C” models are available with 1-1/4-inch boiler and 1-1/2-inch domestic connections and a conveniently located ¾-inch recirculation port. Heating coils take 200k to 240k BTU/HR.

The new XHO units are available in 85 and 115 gallon models and they can take boiler inputs in the 400k to 495k range. Again, these large heating coils are a counter flow configuration. When used with lower input boilers, the large stainless steel HO and XHO heat exchanger coils are idea for fully utilizing the efficiency of today’s condensing technology by allowing the boiler to run at lower water temperatures. Many of the XHO units are connected to 300 to 399k-condensing boilers.

Visit www.heat-flo.com

Q: Can you describe any new developments in boiler technology that your company made recently?
A: We saw an increase in applications utilizing indirect water heaters with larger heating coils, and high-efficiency condensing boilers. In our 60, 80 and 115 gallon units, we offered heat exchanger coils that will take boiler outputs in the 110k to 140 K range for common residential size boilers. We also offer higher output coils that will take boiler outputs in the 200k to 240k range. All of the coils are designed in a counter flow configuration to lower boiler return temperatures. A trend that we have seen over the last few years is an increase in the usage of the high output coils with lower input boilers. Using a high output indirect heat exchanger with a lower input boiler allows the boiler to run at lower supply and return temperatures and increases the boiler efficiency while running on the water heating mode. About half of our high output units are used because the installation needs the 200k input in the water heating mode, and about half of the high output units are used to increase boiler efficiency.

Q: What customer feedback have you received about boilers and/or the boiler market?
A: Our unique hot water storage tank or “booster tank” units include dedicated supply and return dip tubes for improved temperature control while assuring that the heat source is hydraulically decoupled from the cold and hot connections and flow variations. Some installers have used the storage tanks, with four 1-inch NPT connections as buffer tanks in water-to-water heat pump applications. All indirect water heaters and storage tanks are shipped with a standard Honeywell 4080B control rather than a special OEM control. These controls are readily available locally.               

Our Hydronic Buffer Tanks are gaining wide acceptance as the ideal choice for assuring optimum system efficiency in water-to-water heat pumps, chillers and low mass boilers. These light-weight, high-quality units are available in 40, 60, 80 and 115 gallon sizes. We offer connection options of 1-1/4, 1-1/2 or 2 inch NPT to match system requirements. Optional single and dual coil heat exchangers, multiple sensing wells and custom tapping configurations are available to meet the requirements of today’s complex systems. We also offer a 22-gallon buffer tank with either two or four 1-1/4 inch connections. The four-port unit is a good choice to reduce the cycling of low mass mod-con boilers and to hydraulically decouple the boiler from the distribution system at the same time.

Q: What is your outlook or forecast for the boiler market?
A: We expect continued strong growth in our core indirect water heater and hot water storage tank business as more installers are exposed to our installer friendly design features that include all top-mount connections. Installation material costs reductions of $65 to $100 or more, and labor cost reductions of 25 percent or more are very common in comparing the Heat-Flo units to the typical units with connections on the side, and T+P valves and drain valves that have to be installed with extra do-it-yourself parts. With the increasing market share being taken by high-efficiency wall-hung condensing boilers our Lowboy units with all top connections can be installed under the mod-con boilers in some installations, saving valuable floor space.

We continue to expand our distribution in the U.S. and Canada. We look forward to providing good jobs to our workers at our expanded manufacturing facility by manufacturing high-quality, innovative water heating and hydronic products.


The new Elite Premier boiler is an advancement in low-mass condensing boiler technology. With high-quality features throughout the design, the Elite Premier is one of the most efficient products on the market at a competitive price. Its aesthetic appeal, versatility and serviceability make it the right choice for residential and light-commercial hydronic space heating need. The Elite Premier is equipped with a 316-liter stainless steel heat exchanger. This high-quality heat exchanger allows for excellent heat transfer properties along with high resistance to thermal fatigue and corrosion. It is up to 96.4 percent efficient with a 10:1 turndown ratio. 

The Elite Premier vents in inexpensive, easy-to-install PVC pipe with up to 200 combined feet. No primary or secondary piping is required. The unit also comes with a new 928 control board with a 0- to 10-volt control along with a new and improved customer connection board. The 928 control board is an advancement of the 926 control board that was featured on HTP’s previous Elite boilers. The 928 control board has a switch board power supply, dual process (safety and control) and a 120V or 24V gas valve support along with additional new capabilities. This floor standing or wall mount unit has a new cabinet design and comes in seven models, ranging from 80,000 to 399,000 BTUs. The Elite Premier has a 12-year limited warranty. 

Visit www.htproducts.com 

Q: Can you describe any new developments in boiler technology that your company made recently? 
A: As we progress with our advanced boiler lines, we continue to manufacture more high efficiency combination boilers. We have recently added a 199k BTU model to the existing EFT combination wall and floor lines. We will continue to develop higher mass commercial level condensing boilers in the future. We will also soon enter into the connected appliances realm of space heating boilers. 

Q: What customer feedback have you received about boilers and/or the boiler market?
A: In today’s world, homeowners are now major decision-makers in the market, which means we must cater to them as well. Consumers are beginning to understand the value of purchasing high efficiency products. With that said, we are continuing to produce highly efficient products with strong warranties. These products can save energy, money and are kinder to the environment. 

Q: What is your outlook or forecast for the boiler market?
A: We predict steady progression for the boiler market. We continue to anticipate a steady migration to condensing level products. 


The new 95 percent AFUE Evergreen boiler is an advanced high-efficiency condensing boiler. It features cutting-edge technology with simple controls, flexible functionality for multiple applications and a durable design, and is easy to install, use and maintain. The unit is adaptable for most heating needs including light-commercial or large residential applications and for single or multi-boiler installations.

The Evergreen boiler was built with contractors in mind. It was developed after detailed analysis and testing by Weil-McLain engineers plus extensive feedback from customers. The durable unit is adaptable for most heating demands to effortlessly extend comfort levels to every area of a property from multiple in-home zones to pools for years to come. The boiler’s straightforward and user-friendly design makes installation easy for the contractor, installer or service provider. The unit features a guided setup wizard, an easy to understand graphical user interface, simple controls and 10 heating system presets for quick setup. 

For the homeowner who seeks heating comfort while maintaining lower utility bills and a reduced carbon footprint, the Evergreen was recently designated as Most Efficient 2016 by Energy Star, a new distinction that recognizes highly efficient products. Installation of the unit could allow homeowners to qualify for local utility rebates, if available.

For the residential and light-commercial customer who requires a multiple boiler setup, the Evergreen offers the ability to cascade eight boilers together and ZoneStacking up to 24 programmable zones with no external panel required. ZoneStacking reduces the installation costs and time while increasing reliability. With this advanced control feature, the Evergreen boiler maintains optimal efficiency through lead-lag rotation and balanced heat loading.

In commercial applications, optimal energy efficiency yields reduce energy costs with up to 96.5 percent combustion efficiency. The SmartSequencing feature maximizes energy across all boilers on a system, reducing energy costs. The unit also is certified as low NOx by the South Coast Air Quality Management District (SCAQMD) with less than 20 ppm. The flexibility of the Evergreen boiler system reduces setup time and costs as well. Three multiple-boiler sequencing options include smart mode, series mode and parallel mode. 

Other key features include: stainless steel, fire-tube heat-exchanger with non-metallic base; 10:1 turndown ratio; Modbus communication; natural or propane gas; easy-to-use setup wizard on familiar interface with innovative technology; interactive diagnostic capability; and more.

Visit www.weil-mclain.com

Q: Can you describe any new developments in boiler technology that your company made recently? 
A: Our newer boilers are built with some newer features such as ZoneStacking, a feature which allows for 24 zone heat demand capability without an additional external third party control. ZoneStacking reduces the installation costs and time while increasing reliability. With this advanced control feature, the Evergreen boiler, for instance, maintains optimal efficiency through lead-lag rotation and balanced heat loading.

Q: What is your outlook or forecast for the boiler market? 
A: We’re continuing to keep an eye on weather, capital spending, available federal and state rebates, the planned replacement business and new construction.

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