Here are photos of a circa-1944 Perfex Series 155 Magic Dial Thermostat, as well as the instruction manual.
How to Properly Design and Install The Honeywell System of Hot Water Heating
This book from The Honeywell Heating Specialty Co., issued around 1910, contains complete instructions for the system that changed the way the Dead Men did hot-water heating. This turn-of-the-century system delivered high-temperature gravity hot water heat, without the need for a closed compression tank. It was simplicity itself!
Categories
Leave a comment
Comments by Vanilla
Related Posts
Perfex Series 155 Magic Dial Thermostat
The American Society of Heating and Ventilating Engineers Guide (1929) - Hot Water Heating Systems and Piping
This chapter on hot water heating systems and piping was prepared by Professor F.E. Giesecke (Director of Texas Engineering Experiment Station in TX) for the The American...
Jarecki Radiators (1890)
Here are ratings for the Erie radiator from Jarecki Mfg Co Ltd. They were based in Erie, PA and their radiators appeared in issues of Domestic Engineering in the 1890s.