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.
Some Users Report on Radiant Panel Heating
Here are the results of a survey among owners and renters in the Palo Alto, CA area, whose homes are equipped with radiant floor panel heating systems. This is from the Western Plumbing and Heating Journal, July 1952.
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