Before installation, it is important to select the best mini-split air conditioner for your room size. An AC’s cooling power is rated by British thermal units (BTUs), which are related to how much energy your unit will use. The higher the BTUs, the greater the cooling power.
An 11,000-13,000 BTU mini-split AC generally cools a 400-700-square-foot room, while a 15,000 BTU mini split AC could cover an 800-square-foot room. Keep in mind, of course, that many factors impact cooling, including the seals on doors and windows, the height of ceilings and the quality of insulation.
A ductless mini-split can be one of a diverse set of technologies for cooling your home. Put it in the room that needs the most cooling, like one that gets a lot of sun. Learn to use window fans or tower fans effectively in warm and moderately hot weather, and turn on the mini split on the hottest days. You may also choose a portable AC for rooms not covered by the mini-split.
