Furnace 3871 FBO

[wingnut]

Is there a filter for the furnace? Where is it located? Large return by the stairs, no filter?
Thanks

 

[cookie]

No filter.

Peace
Dave

 

[Resiemon]

No filter. Most of the return air is outside air anyway. It also circulates under your floor.

Is there a filter for the furnace? Where is it located? Large return by the stairs, no filter?
Thanks

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