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I live in Washington and am very familiar with heat pumps. I am sharing person experience - on cold days you will get much lower than the rated efficiency. In E
by legitster 4y ago
I live in Washington and am very familiar with heat pumps. I am sharing person experience - on cold days you will get much lower than the rated efficiency. In Eastern Washington, it's arguable that it would save you much energy over a resistive heater.
- TheCoelacanth 4y agoDifferent models of heat pumps vary wildly in how well they can handle very cold temperatures. Personal experience with one or two different heat pumps is practically meaningless.
- hedora 4y agoThe new ones fall back on resistive heating as necessary. It simply doesn't get cold enough for that to be true in the cities on a regular basis. Yakima and Spokane's record lows are both -25F: https://coolweather.net/statetemperature/washington_temperature.htm https://coolweather.net/statetemperature/washington_temperat... Heat pumps that operate down to -20F to -25F are available from multiple vendors. At that point, they switch over to resistive heating. So, on record cold days, the COP is near one, but on an average day (low of +36F), it will be over 3 or 4. Cold weather heat pumps are relatively new; perhaps you have experience with conventional models? (Record low for the state is -45F. At that point you want backup heat sources, etc, and the heat pump would probably be outside its operating range.)