Bob "Hot Rod" Rohr

Bob “Hot Rod” Rohr has been a plumbing, radiant heat and solar contractor and installer for 30 years. Rohr is a longtime RPA member and Plumbing Engineer and Phc News columnist. Bob joined Caleffi North America as manager of training and education. He can be reached at

Articles written by Bob "Hot Rod" Rohr

Every few years I schedule a checkup at my doctors. They check vitals, put me on the scale and ask questions about any health issues....more

﷯Another year and another well-attended AHR event. ﷯Perhaps it was ﷯the Vegas location and the mild weather that drew a record crowd. The mood of...more

My job takes me to many unique and interesting locations across the U.S. and Canada. After many decades of participating in this industry, I continue...more

For as long as I can remember, domestic hot water (DHW) production in the U.S. has mainly been handled by a tank-style device. Commonly, the...more

The AHR show, held every spring, is the big show for our industry. It covers the gambit. The HVAC, hydronics, refrigeration, and air handling industries...more

My first exposure to the word manifold had to do with cars, hot rods really. Names like Edelbrock, Weiand and Offenhauser were stickered across the...more