One of the most efficient heating and cooling solutions on the market these days is a heat pump. In some conditions, these units can actually reach above 100% efficiency — usually in the range of 200% ...

Instead of a full cover, experts recommend simple winter prep—clean the unit, clear debris, and use a top-only cover if needed. Cold air has arrived, and you might think it’s time to put the air ...

70% of systems have faults that waste $2.5 billion in energy each year — smart tools help contractors fix that.