Which mini split air conditioners are best? Mini split air conditioners are heating and cooling systems that allow users to control temperatures on a room-by-room basis. They are more efficient than ...

A heat pump heats and cools your home, functioning like a combined furnace and central air conditioner. Because they absorb and move heat from the air, heat pumps are exceptionally energy-efficient ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...