Systems Help Center

Our comprehensive HVAC Systems Help Center covers a wide range of HVAC-related topics, including air conditioning and heat pumps, geothermal, hot-water heating, thermostats and controls, solar, steam heating, and warm air. We also have a section of informative and entertaining articles to help you sharpen your HVAC business skills. And our Heating Museum is a captivating journey through the evolution of HVAC technologies. 

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Recent Articles

soap pump
The Finicky Soap Pump

The Lovely Marianne and I were visiting daughters in suburban Maryland, and this almost always involves a stop at some shopping mall or other. It was lunchtime and I offe...

Published on 01/16/2017 3:13 PM by Dan Holohan
Posted in The HVAC Business
steam heating system foley mechanical
Tips on Steam Heating Systems

Back in the early 1990’s, I worked for a mid-size HVAC company. We dabbled in hot-water boiler replacements but were primarily an HVAC company. I had been in the trade fo...

Published on 01/10/2017 2:38 PM by Dan Foley
Posted in Steam Heating
garibaldi front of firehouse
Original Glory: Restoring an Old Firehouse

Christian Garibaldi lives in a firehouse, but the only fire he’s ever encountered was during a test drive in a Ferrari F430. He’d spent over a decade as an automotive tec...

Published on 12/18/2016 3:25 PM by Erin Holohan Haskell
Posted in Steam Heating
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Seven Years, Tops

So the washing machine, which had sat like a sorry old man and served our family for at least 25 years, decided to spring more leaks that a litter of puppies last Christm...

Published on 11/18/2016 2:17 PM by Dan Holohan
Posted in The HVAC Business
Copper
Threaded Copper Tubing

A discussion on The Wall: Paul S. asked, "Has ever heard of screwed copper pipe? I have it on a job and sizes are way off.

Published on 10/11/2016 10:38 AM by Compiled from The Wall
Posted in Hot-Water Heating