I could use some help calculating EDR for some convectors.

Double D

All of the elements in the cabinets measure 8" X 1-1/2". There are various widths in the rooms with convectors. In the Great room there is what looks like a fabricated duct with an element that measures 6"wide X 3"high X 40-1/2" long, the other element is free standing and has an element that measures 12"wide X 3" high X 53-1/2". Any help would be greatly appreciated.

Steamhead

Find something in Dan's book "E.D.R." and you'll be pretty close. You'll need to measure height, length and depth.

For the floor unit, you might try the chart you can link to from here:

http://beacon-morris.com/html/heat_sliding_glass_door_window.asp

Do those convectors have pneumatic valves on the steam supply connections?

Double D

Thank you, yes those are pneumatic controls on the supply connections. I was able to get the system working but there are leaks in 4 of the actuators. Other than that all stats and valves work. I did get a lot of help and good advice on that system in another thread. Half the house is cast iron rads and half is convectors. What were they thinking putting convectors in to replace radiators.

DanHolohan

Any alligators in the moat? ;-)

Double D

No alligators in the moat but you guessed it. It's a Castle, complete with knight in armor. The famous E.B. Green Castle.

DanHolohan

Gorgeous. And the front-door cannons are a perfectly careful welcome. ;-)