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Question About Lennox International Inc. Furnace G40DF(X) SERIES
where does the filter go?...

I have no idea where the filter goes in my Lennox g40df model I have been told in 2 spots both make no since. please help

Asked by andrea on 11/29/2009 2  Answers

ManualsOnline posted an answer 15 years ago

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

R posted an answer 11 years, 7 months ago

0 Being a down-flow furnace, the (that's what the DF means in the model number) the filter will probably be at the return. The return is where air enters the system. It will be a metal grate, within your home, mounted in the ceiling, typically in a hallway - and if it's a two story house it will probably be on the second floor.
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