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

Whittier Radiators

Thanks to Frank "Steamhead" Wilsey for sharing this one with us. He writes, "The first page is from Susan Reed Stifler's book, The Beginnings of a Century of Steam and Wa...

Published on 06/12/2014 2:44 PM
Posted in Heating Museum
Roman Hypocausts

This excerpt is from an 1845 book titled, Bernan's History and Art of Warming and Ventilating Rooms and Buildings. Walter Bernan was a Civil Engineer in London. What we h...

Published on 06/12/2014 1:22 PM
Posted in Heating Museum
Stephen J. Gold's Boiler Patent

Stephen Gold was the inventor of the first radiator, the "mattress" radiator. Here is is patent for his boiler, which appeared nine years later. Much thanks to Gerry Gill...

Published on 06/12/2014 1:16 PM
Posted in Heating Museum
Ventilating Slave Ships

This excerpt about ventilation on slave ships is from David Boswell Reid's circa-1844 book, Theory and Practice of Ventilation. 

Published on 06/12/2014 1:08 PM
Posted in Heating Museum