Thread: Furnace Replacement question
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Stubby
 
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Default Furnace Replacement question
wrote:
Thanks for your reply. The links you posted are quite useful.

My one question is:

Is it true that a forced air gas furnace loses its efficiency down to
55%, once its 10 years old?

Thanks.

Not according to my plumber ad the Energy Survey I had done. 35 years
old and still 83%.
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