We already have a heat pump that the previous owners had installed from some years back that works fine til it gets below 25F or so.
How cold outside can TODAY'S best air-source heat pump heat a home WITHOUT having to use the internal backup electric heater?
I'm having people on another forum claim that today's air-source heat pumps will heat down to -18F with JUST the heat pump and no backup electric heat.
I'm very skeptical of this.
PLEASE educate me.
How cold outside can TODAY'S best air-source heat pump heat a home WITHOUT having to use the internal backup electric heater?
I'm having people on another forum claim that today's air-source heat pumps will heat down to -18F with JUST the heat pump and no backup electric heat.
I'm very skeptical of this.
PLEASE educate me.
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