this post was submitted on 03 Jan 2024
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Isn't it really how well your home is insulated and whether the heat pump can keep up with the escaping heat?
no, heat pumps are rated for and work most efficiently at a specific temperature range. You're pumping energy from outside in, so the outside temperature matters a lot.
you can have all the insulation in the world and it won't matter if the heat pump can't transfer that energy.