Heating and cooling are among a home's biggest energy uses. Efficient electric heat pumps, which move heat rather than burning fuel, together with smart thermostats that learn a household's routine and respond to conditions, reduce waste while keeping homes comfortable.
A thermostat that adjusts to when people are home, and a system that runs efficiently, can noticeably lower bills and emissions. Suitability depends on the home, climate and installation quality, and up-front costs can be significant, but the combination of efficient hardware and intelligent control has made comfortable, lower-energy homes more attainable.