Steel Finn Tube Radiation

Aaron_2

I have this house in good ol' Pittsfield MA, and it has about 38' of Finn Tube in it, it is 1-1/4" steel pipe and the finns are 2-1/4 Square steel. My question is how much heat does this emmit in sqft or btu/hr. Can't find the info in my books I currently have. There is no enclosure around the finns it is wide open to the rooms and hangs off hangers on the wall about a foot off the ground.

Unknown

This might be close...

http://www.slantfin.com/comfin/elements.html

Noel

Weezbo

the stuff is around 1100 a foot ,

it would seem that it should be like multiples over 3/4 buh it isnt,there used to be something like a 900 -1100 range the manufacturers would claim could be produced at certain temps. i hope that helps...long time ago i'd look at it as 700-900 and do my take off on that #.

Unknown

It's the other way around

There isn't MORE surface area in a fin tube with a bigger pipe, there is LESS surface area.

There is more HOLE through the fins, though.

Less surface area means less output.

Bigger pipe allows more LENGTH of baseboard at the same Delta T, but the output goes down, per foot, because of the smaller surface area on the fins.

Noel