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Help Figuring our EDR for unusual 1864 radiator/convector
Good Afternoon Everyone!
I recently became a steward of a grand 1874 house. And of course the first step is bringing the steam system up to my standards. It actually works reasonably well - no hammer and most radiators heat up pretty quickly from half-million BTU WM 78. But also set at 10psi and I'm sure is using way more oil than necessary.
But my first step is figuring out the radiation. There's a number of more common column and slenderized rads, but there's also quite a few of what I presume to be the original radiators from when the house was built. I have never seen anything like that(and couldn't find them in Dan's book) Very interesting design and the only thing I could make out on them is the patent date of 1864. Here is one, I hope someone can help me at least ballpark their EDR rating.