Collecting Attic Heat
I have a 2 story home roughly 3,200 sq ft (2,000 downstairs, 1,200 upstairs). There is no door dividing the two floors. I have 7” of open cell around the envelope. There’s a 3 ton central for upstairs and a 3 ton central for downstairs. Right now while it’s cold outside, my upstairs unit never kicks on and the upstairs temp stays consistent with downstairs. The downstairs unit runs almost constantly. They are both inverter systems so I feel like I’m losing some benefit here with the downstairs unit running full speed all the time. The attic is sealed and invented so that’s where the heat ends up. Could I put a return from the downstairs system in the attic to pull some of that hot air back down instead of letting it waste up there? This house is in the final stages of construction so I have limited experience with the system. I’m afraid I will run into the same but opposite problem during summer with the cold air falling.
Thanks in advance!
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