BTU rating ~1964 Fedders 3-pipe horizontal big fin radiator?

Pinball

Ok then, now we need the dimension of the cabinet and core and I can look up the approx output from an old book I have. (if I can still find it!)
Al

soot_seeker_2

BTU rating ~1964 Fedders 3-pipe horizontal big fin radiator?

hi guys,

trying to do a heat-calc.

would anyone have a BTU/Ft rating for ~1964 'Fedders' 3-pipe horizontal copper tubes - (one) big aluminum fin type radiators?

these are your old style - maybe 30" high type radiators [vents on the top - always painted white :-)] with the inlet pipe splitting into a 3-pipe manifold running horizontally & combined again at the end return manifold - running thru aluminum fin (maybe 5-6" across horizontally). i think the 3 inside pipes are 3/4" (maybe 1/2")- i believe they were made by fedders. they can put out some decent heat for a short length.

i'm sure someone here is familiar with them. if not i'll take a picture & post.


thanx for any info.

ss

Pinball

What your describing is known as a "convector"
Does it have a metal cover, that is removable?
Al

soot_seeker_2

convector!!

convector!!

yup that's it - big metal front cover comes off after pulling out from the bottom & then sorta lifting up & then out.

ss

soot_seeker_2

oh..

oh, i was thinking this was a linear ft btu rating like reg baseboard but i see what you're saying that it's dimensional based on the box size.

i have all different linear sizes of these in the house (although the height/depth/& element are the same) so i was hoping that this was a 'point to a website thing' rather than a dig up an old book (meaning i hate to bother people) but i will measure one & post.

i gather the slantfin heat calc software doesn't cover these?

ss

soot_seeker_5

here's a picture & dimensions..

ok,

this is for hydronic.

enclosure height is 23".
core is 3 X 1/2" pipes.
6" deep - 2.5" high.

and it does say fedders on it - but no part no. that i can see.

this particular one is 56" long but these exist in all different lengths from 24" to 56" all around the house.

i found very few ratings on the web for similar but only 2-pipe versions rated at 180F (although didn't see a gpm - assuming 4) rated at about 1700-1800 btu/ft - output per foot decreases as the unit gets smaller.

thanx for whatever you can come up with.


ss

Pinball

OK now we're getting somewhere. I found my chart. My chart says they come in three depths,4,6,& 8 inches deep (cabinets not core) and heights of 18, 20, 24, 26, & 32" and lengths ranging from 20" to 64"
For example: the one you describe at 6" deep x 24" high x 56" long with 65* entering air temp @ 180* water temp puts out 8300 btu's. I have charts based on three input temps, 170*, 180* and 190*. If you want you can e-mail me with all your dimensions, and I will send you back the btu rating.
I wish I had a scanner I could send you a copy of the chart.
My e-mail is Pinball@hvc.rr.com
Al

soot_seeker_5

this may work then..

if the rating is 8300btu for the 56" triple version then it looks like this chart for a double version is giving roughly the same numbers:

http://www.ocsind.com/convector_elements.html

thank you putting me in the right direction.

ss

Pinball

Yeah, that chart looks very similar to mine. mine is just ALOT older, probably from the 50's
I'm glad I could help
Al