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Question About Lennox International Inc. Furnace G23
Filter...

We purchased a home with a Lennox G23 gas furnace. It has no filter in the side return air unit (installed on the left side of the furnace). Do the filter arrows point toward the furnace or away from it? There is also an electronic air filter. Which type of filter is best?

Asked by bridget on 03/06/2013 1  Answer

ManualsOnline posted an answer 11 years, 7 months 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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