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How many BTU old radiator puts out

bob eck
bob eck Member Posts: 930
in THE MAIN WALL
Hello I did purchase Dan's book on E. D. R. but I have a radiator that I did not see listed in his book.



I need to determine how many BTU this radiator will deliver at 180* F water.



The cast iron radiator said Columbia on one end.



18" high

13" wide

5 tube

18 sections



Can anyone tell me about how many BTU this radiator will deliver?



Thanks for your help.

Comments

  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,254
    I'd use

    the same output as many of the other 5-tube radiators - 48 square feet EDR x 170 BTU per square foor = 8,160 BTU's.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab

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