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Unknown baseboard brand - Btu rule of thumb?
28W
Member Posts: 141
in Gas Heating
Copper-tube alum fin baseboard. No idea what brand, but the room it is in is at least 30 years old. Would Btu tables from some of the vintage Slant Fin baseboard be a decent approximation?
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Comments
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???
What is the height of the base board? If it's 7", then you can assume an honest output of about 500 btu's per lineal foot of element @ 170* average water temp. If it's in reasonably good condition and the fins are clean.Bob Boan
You can choose to do what you want, but you cannot choose the consequences.0 -
Reply to Ironman
The website wouldn't let me reply directly to your post . . .
Anyway, to answer your question, the baseboard housings are 7" tall. The fins inside are 5" tall. Everything is in good shape and clean. Hardwood floor underneath.
I'm interested in Btu output at below 170 also; is there a conversion factor?0 -
Most Manufacturers
Post a chart with water temperature versus BTU output. Contrary to popular belief baseboard will still work at lower water temperatures, but at a reduced output.
http://www.slantfin.com/images/stories/Product-Literature/catalogsheet_fineline30_30_10.pdf0 -
Seriously???
7" tall fin section? Are there 2 pipes or one running through the fins? How many fins per inch? What size of tube going through them?
Believe it or not, 1/2" shows a higher output than 3/4" at certain temperatures. It has to do with fluid turbulence (Reynolds numbers).
If it is in fact truly 7" tall fin section, the output is more than 500 per foot.
METhere was an error rendering this rich post.
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7" Fin Section
I've never seen a 7" fin section.
I was referring to the height of the enclosure.Bob Boan
You can choose to do what you want, but you cannot choose the consequences.0 -
As I said above
the housings are 7" tall. The fins inside are 5" tall.0 -
I found a Slant Fin table
for one of their baseboard models that puts out 500 Btu at 160 degrees. I'm thinking I'll use that table - it provides output numbers all the way down to 110 degrees.0 -
I found a Slant Fin table
for one of their baseboard models that puts out 500 Btu at 160 degrees. I'm thinking I'll use that table - it provides output numbers all the way down to 110 degrees.0 -
I need a reading comprehension course....;-)
But still, even at 5" tall fin tube section, I've not seen that in a residential setting. The norm is more like 2.5" tall.
METhere was an error rendering this rich post.
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I will measure again
But it sure looked like 5" on the tape. They are old units.0 -
How many pipes going through the fins?
One or two? If two, the output will be more than the 500 btuH/LF.
METhere was an error rendering this rich post.
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Pretty sure it is one pipe
But I will check. Thanks.0 -
Pipe Size?
What is the tube size in the element?Bob Boan
You can choose to do what you want, but you cannot choose the consequences.0
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