How do I choose a properly sized mini split air conditioner?
Like all air conditioners you need to know how many BTUs you need to cool the area you are trying to cool/heat. There are many variables that can affect how many BTUs that are needed for any given space such as the amount and quality of windows, the insulation in the walls and more. That being said the general rule of thumb for residential air-conditioning is 500 square feet per 12,000 BTUs. 9K cools/heats 200-300 sq ft / 12K cools/heats 300-500 sq ft / 18K cools/heats 500-700 sq ft / 24K cools/heats 700-1000 sq ft.
