Quote:
Originally Posted by Maddie2009
Thank you both. I have not seen one with a filter until now. Saw a few houses in TV without a filter here. I don't know the answer to the outside air intake. I will take the pictures and post it to see if you can help me determine. Thank you kindly.
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Look in the overhangs outside of your home. Probably around the front door or maybe the patio. There will be a cover that looks like the ones you have inside your home. You will probably need an 8 foot step ladder to reach.
I would not put a filter on the return inside. What you are doing is putting two filters on the return air. One at the heater and one in the ceiling.