DIY mini-split installations are voiding warranties and causing hidden moisture damage that doesn't show up until months after the unit is running. Undersized units — a problem tied directly to ...

A heat pump heats and cools your home, functioning like a combined furnace and central air conditioner. Because it absorbs and moves heat from the air, it is exceptionally energy-efficient and ...

Q: I am one of a growing number of Americans with a new mini-split heat pump. I have no idea how to maintain it or use it efficiently. I’ve talked with many other owners and we are all largely in the ...