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.
How to Install Homart Hot-Water and Steam Heating Systems
In 1957, Sears, Roebuck and Co. sold complete heating systems to homeowners, and they put together this booklet showing step-by-step how to install these systems.
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