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Question About Lennox International Inc. Furnace G23
G11 furnace efficiency...

I need to replace 2 g11 110 btu furnaces and would like to know what was the approximate efficiency of the G11 furnaces (installed 1979).

Asked by Don on 09/17/2010 1  Answer

ManualsOnline posted an answer 14 years, 1 month ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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