Perfex Series 155 Magic Dial Thermostat
Here are photos of a circa-1944 Perfex Series 155 Magic Dial Thermostat, as well as the instruction manual.
Ratings for Gold, Nason, Bundy, and Reed Radiators
Gold, Nason, Bundy, and Reed Radiators were some of the first radiators made. This document contains radiator ratings are have been very tough to come by. Thanks to Frank "Steamhead" Wilsey for finding and sharing them with us!
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The American Society of Heating and Ventilating Engineers Guide (1929) - Hot Water Heating Systems and Piping
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Jarecki Radiators (1890)
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