National US Steam boiler

Pat_27

Would anybody know the BTU rating of a national US Boiler Series 22 7 section, 6 burners, 2" inlet and outlet with a 6" smoke pipe?

Unknown

Pat, can you

Can you pls recheck the number as I can't find it in my late father's National US boiler book....

Steamhead (in transit)

There were two 22-series National-US gas boilers

if it's a Capitol, it's 240 MBH input, radiation load 530 square feet EDR. If it's just a National, it's 330 square feet... they don't give an input rating.

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