Very Old Two Pipe Radiator

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Long Beach Ed
Long Beach Ed Posts: 1,851
edited October 2025 in Strictly Steam

Anyone know how the base of this radiator is internally arranged and how the steam circulates through it? We'd like to use this as a single pipe radiator, with the return plugged. That's an 1-1/4" supply and 1" return.

It may be a pre-1890 Bundy; where later ones just had a single internal baffle.

The heating load is minimal, so condensate load should be less than its design. If it doesn't work out, we'd add a return with a condensate loop…

One section was tapped in later years for a vent. Check out the original vent standpipe on the end. Thanks for all your help!

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