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.
The Dunham Packless Inlet Valve
Packless radiator supply valves kept air from working its way into a vacuum system. This bulletin from C.A. Dunham Co. is from 1916 and features the Dunham Packless Inlet Valve. Thanks to David Cordes for sharing.
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