Old steam fin-tube rads

tommyg

Anyone know how to calculate the edr for old steam rads that are actualy like fin-tubes? They are set in the wall behind a radiator cover and aren't any longer than I would expect a cast iron radiator to be for the same location. I can't find them nor any info about them anywhere, but I've got them in my house.

Any info would be appreciated

Unknown

Well, what are they?

What brand, and what are the dimensions of the cabinets? What size are the fins? How many tubes pass through the fins? What size tubes? Can you post some pictures?

If you want to look them up, I'll bet they are in this book.

http://www.heatinghelp.com/shopcart/product.cfm?category=2-59

Noel

Steamhead

And

if they aren't, I have some real old stuff that Dan didn't have when he published his book. Try to find out who made yours. Take some pics and post them here.

Is that a one-pipe or two-pipe system? Are traps built into those convector units? I recently ran into some similar ones with orifices built in for Vapor operation. They were made by Trane.

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