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5215's avatar
5215
Explorer
Sep 01, 2021

Coleman heat pump and heating element together

I'm shopping for a new rooftop air conditioner. Getting one with a heat pump seems like a good way to save electricity. However, heat pumps stop working when the outside temperature gets close to fr...
pianotuna's avatar
pianotuna
Nomad III
Sep 01, 2021
I added a 2nd thermostat for the wall for the furnace only. So I can use the heat strip and the furnace together, rather than "either/or".

I find I can use the heat strip down to about -20 c (-4 f). Below that the fan on the air conditioner doesn't like it.

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