• whodatdair@lemm.ee
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    9 months ago

    Beware the one-hose energy suckers!

    https://m.youtube.com/watch?v=_-mBeYC2KGc

    TL;DW units with one hose pull interior air over the coils to do the energy exchange, then blow that air out the hose. This makes your space become a negative pressure zone and the air is replaced with unconditioned outside air which must be conditioned.