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.
E.N. McDonnell Speaks Up for Steam Heat
This is a speech that E. N. McDonnell, founder of McDonnell & Miller, made on May 29, 1940 to the Heating & Piping Contractors National Association in defense of steam heat. He was a brilliant marketer.
Categories
Leave a comment
Comments by Vanilla
Related Posts
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.