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.
Hoffman Boiler Return Trap Patent
This circa-1936 patent is for the Hoffman Specialty Company's boiler return trap for heating systems. Thanks to Gerry Gill for finding this patent, and for sharing it with us.
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