Why Heat Pump Efficiency Doesn’t Always Lower Winter Bills

Mitsubishi hyper heat pump is mounted on the exterior wall of a brown shingled building with a conduit running upward, installed by Endless Energy, a Mitsubishi Diamond Contractor

Why Your Heat Pump’s Efficiency Doesn’t Always Mean a Lower Electric Bill in Winter If you’ve ever looked at a heat pump‘s spec sheet and seen numbers like 300% efficiency, or a COP of 3.0, your brain probably did the math: I’m getting three times the heat for every unit of electricity I use. That […]