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imnotyourbrahh t1_j1a4ap5 wrote

When my heat pump runs (Summer or Winter) the big register on the floor('return air') sucks in air, filters it, conditions it and then sends it back through the vents. If not sucked out then it's sucked down into the basement and comes back nice and cool!

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ReeferMode t1_j1b5u8f wrote

You have a ducted system then, the air is cooled by your indoor unit in what sounds like your basement, then ducted upstairs.

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