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.
Crane Radiant Baseboard Panels (1952)
This booklet from 1952 about Crane Radiant Baseboard Panels covers more than just the baseboard radiators. It also gets into system engineering, Crane boilers, and even steam heating.
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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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