Adding an A/C system sounds like a job for pros only. And usually, it is. But two non-pros handled this ductless mini split air conditioner installation in a garage in one day. The installation was ...

A complete home heating and cooling system built by hand this MR Cool installation shows how one builder adds comfort and ...

Window AC units are generally more affordable and can be installed by two people in two hours. DIY-ing the job saves you an installation bill of $140 to $500, depending on the type of unit. You can ...

Mini split air conditioners are heating and cooling systems that allow users to control temperatures on a room-by-room basis.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Doug Mahoney and Harry Sawyers After a new round of testing, we’re adding four ...