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.
Danfoss One-Pipe Steam Control Valve Patent
Thanks to Gerry Gill for finding and sharing this patent for the Danfoss 1-PS valve. Note that the vacuum breaker is not yet a part of the valve.
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