If your mini split AC just helps out, and only for a few months out of the year, a rotary should be fine. Voltage: Most U.S. power outlets use 110 or 120 volts, which most mini split ACs use.

Mini splits offer an easy-to-install heating and cooling solution, but placing them in the wrong location could cause them to be less effective.

Mini-split units include two main parts, an outdoor compressor or condenser and an indoor air-handling unit, according to the U.S. Department of Energy.

For example, a 450- to 550-square-foot room needs a mini split AC with roughly 10,000 to 12,000 BTU. Most units list the square footage they can cover so you don’t have to do any math.

If your mini split AC just helps out, and only for a few months out of the year, a rotary should be fine. Voltage: Most U.S. power outlets use 110 or 120 volts, which most mini split ACs use.

For example, a 450- to 550-square-foot room needs a mini split AC with roughly 10,000 to 12,000 BTU. Most units list the square footage they can cover so you don’t have to do any math.

For example, a 450- to 550-square-foot room needs a mini split AC with roughly 10,000 to 12,000 BTU. Most units list the square footage they can cover so you don’t have to do any math.

Mini-split ductless systems are composed of three main parts—an indoor air-handling unit, an outdoor compressor/ condenser unit, and a remote control that operates the system.

Recurring maintenance and associated costs are among the disadvantages of mini-split systems you should know before buying. A surefire way to minimize this, however, is to keep them unimpeded ...