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

Gorton Radiator Supply Valves

Here some terrific cutaway views of radiator supply valves, including the Gorton Quarter Turn Packing Lock Radiator Valve, from Gorton & Lidgerwood Co. of New York. Thank...

Published on 06/12/2014 4:27 PM
Posted in Heating Museum
Gurney Boilers and Radiators (1927)

This circa-1927 book from the Gurney Foundry Company contains information about Gurney boilers, radiators, and water heaters. Thanks to Bob Moore for scanning and sharing...

Published on 06/12/2014 4:25 PM
Posted in Heating Museum
Gurney's Copley Radiator (1927)

This circa-1927 brochure contains information and radiator ratings for the Gurney Foundry Company's Copley Radiator, a radiator "as beautiful as a piece of fine furniture...

Published on 06/12/2014 4:20 PM
Posted in Heating Museum
Heintz Convector

This document contains information about the Heintz Manufacturing Company's Heintz Radiator Unit for concealed heating. Thanks to Frank "Steamhead" Wilsey for finding, sc...

Published on 06/12/2014 4:18 PM
Posted in Heating Museum
Herman Nelson Invisible Radiators

This circa-1930 book shows the ratings for Herman Nelson Invisible Radiators, which were radiators that are inside the walls. This document was scanned and shared by our ...

Published on 06/12/2014 4:17 PM
Posted in Heating Museum
How Should the House Be Heated?

What can be done to disguise the radiator and register? This article is from The House Beautiful magazine. There is no date, but it is most likely the late-1910s or early...

Published on 06/12/2014 4:15 PM
Posted in Heating Museum
Indirect Radiation

This excerpt is from The Ideal Fitter (1922). You'll find indirect radiators (both steam and hot water) within basement ductwork. Often, there is a connection to outside ...

Published on 06/12/2014 4:11 PM
Posted in Heating Museum