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

Scott Valve Company Radiators

The Scott Valve Company of Chicago printed this catalog in 1915 showcasing their radiators, along with radiator ratings. You'll find the Niagra radiator, the Triumph radi...

Published on 06/12/2014 3:08 PM
Posted in Heating Museum
Sun Radiators and Heaters

This unique circa-1905 catalog is from the U.S. Radiator and Boiler Company of Pittsburg, PA and contains some very hard-to-find radiator ratings for Sun Radiators and He...

Published on 06/12/2014 3:03 PM
Posted in Heating Museum
Table of Estimated Radiation

Written by Harry B. Perrigo in 1913, these four pages of simplified sizing information for heating systems must have been in the pockets of many a Dead Man over the years...

Published on 06/12/2014 3:01 PM
Posted in Heating Museum
Trane Heat Cabinets

This is a brochure about Trane Heat Cabinets calling them "the greatest advancement of the age in the field of heating" and "successors to the radiator." Thanks to Frank ...

Published on 06/12/2014 2:58 PM
Posted in Heating Museum
U.S. Capitol Radiators

This brochure for Capitol Radiators is from 1928 and was published by the United States Radiator Corporation. Special thanks to Mike Thies for scanning this for us.

Published on 06/12/2014 2:56 PM
Posted in Heating Museum
Vento Cast Iron Heaters

This is an excerpt from The Ideal Fitter, which the American Radiator Company published yearly back in the day. It features the Vento Cast Iron Heater. It reads, "Just as...

Published on 06/12/2014 2:50 PM
Posted in Heating Museum
Walworth Radiators

Thanks to Frank "Steamhead" Wilsey for finding and scanning these pages. He writes, "These scans are from the Walworth Manufacturing Company's 1892 catalog, which I recen...

Published on 06/12/2014 2:47 PM
Posted in Heating Museum
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