Dan Foley

Dan Foley is president and owner of Foley Mechanical, Inc. based in Lorton, Va. FMI specializes in radiant, hydronic and steam systems as well as mechanical systems for large custom homes. He can be reached at 703-339-8030; dfoley50@verizon.net; or www.foleymechanical.com.

Articles written by Dan Foley

Over the years, I have had the opportunity to try various manufactures' products. Some I have liked, and some I have not liked. Many of...more

I have installed countless cast iron boilers over the years, both hot water and steam. While I may have lost count, my back reminds me...more

John’s company, Advanced Comfort Systems is based in North Smithfield, Rhode Island, near Providence. He and his father started the company in 1998 when they...more

We do over one hundred installation jobs annually. These range from simple change-outs to 30,000-square foot Taj Mahals, and everything in between.  The vast majority...more

The majority of the hydronic boilers we install today are low-mass, modulating condensing boilers. Sure, we still install a few atmospheric cast iron boilers on...more

It started about this time two years ago. It was early June, and the first real heat wave just hit the D.C. area. The Monday...more

I installed my first radiant heating project over 25 years ago. Since then, I have designed and installed several hundred radiant projects. We have done...more

My company does not do a lot of commercial work but one specialty niche we have is servicing the boilers and mechanical systems in the...more

I am many years removed from running daily service calls. But, I enjoyed the satisfaction of walking into a cold house, diagnosing the problem, fixing...more

Whenever I quote a replacement steam boiler on a system with wet returns, I always quote a price to replace the wet returns, or at...more

We had a very mild fall here in the D.C. metro area. As such, we did not run into many service issues until the weather...more

Most service calls are typical.  You receive a call for “no heat," go to the call, diagnose the problem, fix it, collect a check, and...more

Several years ago, I received a phone call from my friend and mentor, Dan Holohan. His daughter Erin, and her husband Drew, had purchased a...more

You know the feeling. You are in a tight crawlspace with a 20-foot crawl to the hatch. Or, you are on a rooftop, and have...more

The list of steam heating contractors who have installed a completely new steam heating system is not long. By complete, I mean boiler, piping, risers,...more

The call came in one morning a few weeks ago.: “My water heater is leaking. Can you come take a look?” the caller asked.


I first met Steve “Wheels” Wieland almost 20 years ago. I don’t remember exactly how or where we met but most likely it was at...more

We service the steam system in an old apartment building in the Dupont Circle neighborhood of Washington, D.C. The Avondale Apartment Building was built in...more

When I first got into the trade almost 30 years ago, the equipment I installed and serviced was pretty straightforward. Truck stock was minimal and...more

The Air Conditioning Contractors of America (ACCA) annual conference was held March 16 – 20 in Grapevine, Texas. The event was located at the Gaylord...more