Arco's Ventilorad Radiator Booster was an electric heat booster for ordinary radiator. Here is the literature from 1937, along with a letter to wholesale distributors from A. R. Herske, Vice President and General Sales Manager of the American Radiator Company. It essentially turns a radiator into a fan-coil unit.
Here is the original Installation and Operating Instructions and Parts List for The H.B. Smith Company's Oil Fired Cast Iron Hot Water Boilers (No. OHB-13W). This is esti...
The Henry Ford Museum in Dearborn, MI has an interesting hot-water heating system. Take a look at the radiators below. They are from the Shaw-Perkins Manufacturing Compan...
We estimate that this cast-iron boiler catalog from The Peerless Heater Company in Boyertown, PA is from the 1980s or 1990s.