In cooling mode, they work exactly like air conditioners. And come colder weather, they’re the most energy-efficient system for home heating. They’ve been common in warm parts of the U.S. for ...

The mini-split air conditioner is a combined heating and cooling system that can provide conditioned air to your home. This type of system comprises one or several indoor units (evaporators ...

We review split-system ... air conditioners for both cooling and heating, as well as cooling-only models. We've also partnered with Shop Ethical on this update to show the ratings the Ethical Consumer ...