What Is a Mini-Split Heat Pump? How It Works

Heat pumps fan outside in snow

A mini-split heat pump gives you heating and cooling without a conventional duct system. One outdoor compressor connects to one or more indoor units, making it useful for additions, older homes, targeted comfort … Read more

Geothermal Cooling: How Ground-Source AC Works

Geothermal diagram of pipes underground to a house

Geothermal cooling works like a conventional air conditioner, but it sends indoor heat into the ground instead of hot outdoor air. Because shallow ground temperatures are steadier than summer air temperatures, a ground-source … Read more

What Size Breaker Does a Heat Pump Need?

Circuit breaker 9 circuits

Choose a heat-pump breaker from the equipment nameplate, not from tonnage. The outdoor unit lists minimum circuit ampacity and maximum fuse or circuit-breaker size, and those values can differ substantially between models with … Read more