: A drafty home with poor insulation will force a heat pump to struggle. It is often cheaper to seal air leaks first than to buy an oversized unit.
: Unlike gas furnaces, heat pumps are most efficient when they maintain a constant temperature. Turning the heat way down at night (a "setback") can actually cost more because the system has to work harder to recover. heat pump buying guide
When comparing models, look for these specific ratings on manufacturer spec sheets: Best Heat Pump Buying Guide - Consumer Reports : A drafty home with poor insulation will
Buying a heat pump is less like buying a furnace and more like buying a whole-home comfort system. Unlike traditional systems that "blast" air, heat pumps move existing heat to provide steady, even warmth or cooling. Turning the heat way down at night (a