Baseboard output

kevin coppinger_4

I have a question about output off copperfin tube baseboard... If you do a return loop over a piece of baseboard fin (as we all do once in a while) How much more output will that exposed pipe add to the output of the setting? Is there a percentage? ty, kpc

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Al Letellier

return additional output

Not sure on this Kevin, but I seem to remember seeing that bare copper at 180* gives off about 40 BTU per foot. How much more inside the enclosure, I don't know, but I know I never add this in...I always install the BB called for in the heat summary.

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hr

I doubt it would

add any as it will be a cooler pipe than the supply side, and it does block the airflow through the fins, a small bit. Probably a wash, nothing added, nothing lost

Unless, of course the option would be to run the return through a colder space below. Then this heat loss from the pipe could count against the loss.

hot rod

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kevin coppinger_4

Al...

I don't usually "add"t in but I have this one job where I don't have the wall space and was looking to see if a little bit more would help in this slab on grade space....They don't want to do the wallspace fan thing...kpc

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EJW

Baseboard

How about doubling up the fin inside the casement? Got enough room? Maybe high output on bottom and standard on top. EJW

soot_seeker_2

doubling up the fin inside the casement?

'How about doubling up the fin inside the casement'

can you fit this in a standard old 70's slantfin casement?

i've got fin-tube an area where i'd like to beef up the heat. does this mean teeing off at the input and running them down & around & then teeing them back together at the end? seems like i might have to remove the top 'adjustment' panel/louver (whatever) to do this? no?

ss

EJW

I don't know about the slant fin but I have done this before. I had to remove some fins to fit in around the brackets but it worked. I have never tried piping them the way you talked about, I just doubled over and back. How many people have ever used that damper any way? Especially if is under heated to start with. EJW

soot_seeker_2

did it help?

did it seem to increase the heating effect?

twice even?

my situation is such that the slantfin is already installad & it would be tough to re-pipe so if the teeing method would work then that's a big bonus - & no brain time wasted about where to put the bleeder valve(s)...

ss

EJW

Yes it did help, and worked great. I cant see why piping it like that wouldn't work. A minnie convector if you think about it. EJW

soot_seeker_2

thank you !

thank you for the advice.

this idea may really help. i know that the big orange box store (HD) has these pieces available, any other recommendations over that? internet even?

ss

Steve_35

Try a panel radiator if you have limited wall space.

Mitch_4

stacking fins

double tiering your fin ube only gives about a 40-50 % increase as the air entering the top row is much warmer, thus cannot pick up as nuch heat. Best paractice for maximum output is to make the top row primary, and the return the lower.

Mitch

EBEBRATT-Ed

The return piping adds nothing to the output as it partially blocks the air flow. Same goes for double stacking--you get more output but it does not double a single element

ED

Weezbo

well hmmm.....

have you ever stacked three pieces of baseboard tied the tees in and used danfoss valve? just thought i would put that forward...it looks sorta sharp and even though each level up is not cranking out exactly the same the thing is that heat goes to cold and hey if its cold what the heck the baseboard is reasonless :)it will obey physics no matter what so it aint a runtal or myson so what..its yours aint it?

Weezbo

soot_seeker_2

what?

^

give me that again please.

Mitch_4

again

the second tier will have warmer air rising across it. Its ability to absorb heat is caused by temperature differential. thus only a 40-50%increase in output by stacking.

Michal

save some pain

save yourself some pain and check out vulcan radiator corp. they have a double tiered set up, in many sizes finishes and outputs. you would do a return loop, pipe supply into the top and return through the lower unit. Or you can tee them in together, the difference will be negligeable. you can look in their piping diagrams or ask them how to pipe it

soot_seeker_2

sorry that 'what?' was meant for Weezbo ....

sorry that 'what?' was meant for Weezbo (posted wrong).

didn't quite understand the point of his last sentence or so.

ss

soot_seeker_2

which product line?

which product line is that?

i checked the vulcan radiator site. they have a few different product lines but i didn't see double-tiered.

ss

Weezbo

ok this is something i have made a few variations of....

iuse regular baseboard ...it looks sorta cool and people like the fact that it is indeed much warmer...how much? lets leave it to the trv :)and the window they leave open for fresh air another guy was going to use it to help dry Paint! in his furniture shop:) the things people ask me to do...:)its depressing for all the why it wont work and blah blah bla..it indeed can crank heat out....i figure it produces about 70% more heat than a single piece of convector....id send a written testimonial and picture if it didnt entail r and r of an old steam boiler being used as a large hydronic system ,with two new buderas i promised the guy three years ago...