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by PaulDavisThe1st
1467 days ago
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No idea how the Lennox units in TFA do it, but the Mitsubishi "hyper-heat" units do it by diverting a small amount of their output back into heating up the refrigerant at very cold temperatures. It starts to get a bit "slushy" at the low end of the performance range, which impacts the ability to move heat. By warming it back up to the bottom of its ideal operating range, the whole system functions more efficiently. |
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