[Motor31]

There is no filter for the furnace. The furnace draws from the entire basement area to include the pocket door opening. Our rig didn't even come with a mesh "filter" in the grill over the pantry. Since the pocket door and the opening in the circuit box is also open to the furnace to draw from it wouldn't d much to filter anything anyhow.

The smell is likely to be from the burner area and the dust it collected. It will fade shortly. Make sure the burner exhaust vents are free and clear of bugs and debris. You can also look the furnace over in the area behind the basement door. Make sure none of the air ducting has come loose or the basement will get well heated but the rest of the rig won't. I do suggest you take off all of the floor vent covers and vacuum as much of them out as you can. They collect all sorts of stuff and TONS of dust (bunnies too) in there since they are in the floor.

The ceiling filters are for the AC / heat pump.