The size split air conditioner you're going to need depends on the square feet of your room. When sizing an air conditioner, you can use 25 BTUs x the square feet of your room as a rough estimate.
For example, if you have a 10 x 10 room, your room is 100 square feet. A 100 square foot room is going to need a 2,500 BTU air conditioner to cool it.
100 x 25 = 2,500.
Keep in mind, you might need a little more or less cooling power depending on other factors. Factors like:
- the number of windows
- people using the room
- how well insulated the room is
- how much sun the room gets throughout the day
All those add/subtract to the cooling power the air conditioner is going to need. We have a calculator that can help you size the split air conditioner you need. Use both our mini split size calculator and our air conditioning calculator. They'll help you size the split system you need.