Why My Hair Is Brown
I’m 69 years old and my hair is as brown as it was when I was a teenager. A bit of it, mostly around my ears and the back of my neck, sneaks in as gray, but some Russian ...
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
Weil-McLain CGM 7 Ignition Essex Gas Controls (circa 1981)
Here are the installation and operation instructions for Weil-McLain CGM 7 Ignition Essex Gas Controls (circa 1981)
Weil-McLain P-CG and CGM Gas-Fired Boilers, Series 7 (circa 1981)
This is the installation manual for Weil-McLain P-CG and CGM Gas-Fired Boilers, Series 7 (circa 1981).
The Project-Budget Myth
A project budget is sometimes a loose thing. It begins with great intentions but can get torqued out of the way when someone arbitrarily decides what something should cos...
The Relief Valve is Leaking!
"The valve keeps leaking. I can't keep steam. Help!" the text message read.
Troubleshooting Steam Heating Systems
Dan Holohan, probably the smartest person I know on steam, has a saying, "The problem and the solution are rarely in the same room with steam." That holds true I have fou...
Steam Is Coming From the Vent. Should I Be Concerned?
Makeup water is considered a steam boiler's worst enemy. Fresh water can take a system designed to last several decades and cut the life expectancy to only a few years. I...
How to Set and Adjust the Boiler Pressure Control?
A question often asked is how to adjust the steam boiler pressure controls properly. While it seems like a straight forward thing, it is sometimes confusing because there...
Can You Lift Condensate?
Inside the vessel, the steam surrenders its heat and reverts to condensate or water. The condensate has to be returned to the boiler feed unit and boiler. If the condensa...
Safety in the Boiler Room
Look around and see if there are obvious dangers. Take a mental picture of the layout of the room in case of a malfunction. An open boiler pressure relief valve could qui...