When you're looking at adding a heat pump to your home, you'll need to make sure the size is right for your square footage. Erin Gobler is a personal finance writer based in Madison, Wisconsin.

The DOE's challenge to industry was to build energy-efficient, all-electric HVAC units that could perform well in the parts of the ... The problem is that air source heat pumps-- those that ...

Heat pumps sound almost too good to be true. They make for healthier air indoors and out, cut greenhouse gas emissions and ...