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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

wrong piping
Who Gets To Work on Steam?

How’s that for a title? I’ll give you the answer right up front: Everyone! And the best part is you don’t have to know what you’re doing; you just have to show up.

Published on 11/03/2021 1:04 PM by Dan Holohan
Posted in The HVAC Business
Burnham America Catalog (1980s)

A catalog from the Burnham Corporation circa 1980s featuring boilers for steam and hot-water heating systems, as well as Burnham Base-Ray cast-iron baseboard, the Duo-Rad...

Published on 11/01/2021 6:38 AM
Posted in Heating Museum
marble
Marbles and Ghosts

I worked for a manufacturers’ rep when I was first learning about hydronics. A guy I worked with was 15 years older than me. He knew that I had absolutely no training as ...

Published on 10/12/2021 3:48 PM by Dan Holohan
Posted in Hot-Water Heating
eyes
Creepy Crawl Spaces

October, being the month for ghosts and goblins, seems like the perfect time to reminisce about those tight spots few want to visit, but many must. It’s just the nature o...

Published on 10/06/2021 10:28 AM by Dan Holohan
Posted in The HVAC Business
troubleshooting
What's Inside?

This one goes back a bunch of years. The contractor was a good steam man but he had run out of ideas with this job. It was a typical, five-story, New York City tenement b...

Published on 09/14/2021 11:50 AM
Posted in Steam Heating
troubleshoot
Troubleshooting the Cuckoo’s Nest

The steam seminar was to be in North Carolina, which was strange enough, that being the state where most folks only know how to say, “Heat pump, please.” It was also goin...

Published on 08/31/2021 11:24 AM by Dan Holohan
Posted in The HVAC Business