Residential Steam Boiler Replacement - EDR Questions

random12345

https://forum.heatinghelp.com/discussion/comment/1844755#Comment_1844755

Great catch. Very exciting! I thought for a second the 4 tube rad was a Republic Oriole, but it's not. Maybe the convectors though? We'll see.

Itzyklein

https://forum.heatinghelp.com/discussion/comment/1842040#Comment_1842040

I just finished reading "We got steam heat" by Dan Holohan. It's a great read and I was chuckling all the way through, but most importantly it gives a great description of steam systems, their components and how they work, all in simple terms (for guys like me:). I learned a lot from it.

Thanx for the suggestion, I would recommend it to anyone new to steam

JUGHNE

Did you ever post pictures of the old boiler?

Itzyklein

I posted a few in my original post, I can post better ones now

Itzyklein

Front view:

IMG20250221151007.jpg

IMG20250221151130.jpg

Riser and Header:

IMG20250221151019.jpg

IMG20250221151159.jpg

IMG20250221151207.jpg

IMG20250216172149.jpg

IMG20250216172159.jpg

Side view + Controls:

IMG20250216171642.jpg

IMG20250216171655.jpg

IMG20250221151035.jpg

Main vent - front of building (it's a MoM #D):

IMG20250221153823.jpg

IMG20250221153853.jpg

Main vent - Rear (it's tucked in to a hole in the wall)

IMG20250221154011.jpg

IMG20250221154113.jpg

IMG20250221154019.jpg

IMG20250221154203.jpg

random12345

For the convectors, the stack height is important to determine the rating. It's measured from the floor of the enclosure to the top. See below. If you can't find any writing or identifying marks/symbols anywhere, then I would use the following to approximate:

Arco Convector No. 5, 28" L:

https://babel.hathitrust.org/cgi/pt?id=uiug.30112047386849&seq=26

You can also use the OCS sheet that was posted earlier. If the stack height is between the listed values just interpolate.

Itzyklein

I dont have the stack height on hand, based on the following picture it looks like it is 17-18. This picture is measuring the outside of the enclosure from the floor

random12345

Looks like 18.5". So using Arco that would be around 25.3 for each convector, putting you at 455.9. If you use the OCS ratings, it would be about 21 I think, so 443. Burnham STMX 175, Williamson GSA 175, Weil-Mclain EG-50, Peerless 63-04…They all fall right around 450 it seems and should work.