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Heating Capacity of Old HW Heating Radiators

Heating Capacity of Old HW Heating Radiators

Heating Capacity of Old HW Heating Radiators

Does anybody have a general idea of the heating capacity in (Btu/Hr) of one of those old heating radiators that used hot water to provide heat in residential buildings?. An approximate idea would be fine. Heating Radiator dimensions, say, 48X36X10.

RE: Heating Capacity of Old HW Heating Radiators

Its a function of the number of sections and the height of the radiator.  The Effective Direct Radiation EDR surface, varies for different radiators but a first estimate of 4 sq ft per section (range of 3.5 to 5 for 36 inch tall radiators)would get you in the ballpark.  The calculation would proceed as follows:

Total EDR = 4 * No. Sections
Heating Capacity = Total EDR * 240 Btuh

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