It’s much more comfortable at about 80F or a little higher. And in air that dry, a lot of desert dwellers would start shivering if you set the AC to 75F. Yes, it gets up to 115 or 120 in some places – very few places like the desert west – but air is easier to cool when it is dry. Even in hot climates when it is 100 to 110 outside, you are only looking at a change in temperature of 20-35 degrees. So, the temperature differential from outside air to what they desire inside isn’t that great. Most people set their thermostat to 76 to 80 in AC mode. And then we’ll make mini split system size recommendations based on your climate.Ĭooling: In cool climates, summer temperature might climb to 90 or occasionally a little hotter. Let’s discuss how many BTU per square foot for mini split AC and heating separately. Should I Have the Same Cooling and Heating BTU for Mini Split?įirst, we should say that most mini split systems DO have the same, or very close, number of BTUs for AC and heating.īut you probably won’t use the same number of BTUs for heating and AC – unless you live in a temperate climate without extreme heat or cold. It allows you to input your room or whole house size, select your climate zone on a map and get a precise calculation about the mini split heat pump size for both heating and air conditioning your space. Asking it the other way, BTU per square foot, makes more sense.Ĭheck Out our Calculator for mini split sizing. 04 (divide 500 square feet by 12,000 BTUs, which is the proper amount for that size). We get that question once in a while, but the answer would be like. How many sq ft to BTU for mini split systems? In a colder climate, consider an 18,000 or 24,000 BTU system to make sure it will heat the room or zone. In Florida or Arizona, a 24,000 BTU system might handle 1,000 square feet for heating and AC.Ī 12,000 BTU unit is ideal for heating and cooling 400 square feet in a warmer climate. Obviously, the colder your winters are, the larger the system will need to be. Mini Split Heating Size Chart (Square Footage to BTU) Room SizeĢ4,000 BTU for AC and up to 60,000 BTU for heating based on your climate. If you want heat too, the chart right below indicates that up to 30,000 BTU will be necessary based on how cold winters are. If you’re cooling the space only, you will need 12,000 BTU for an average climate. And definitely see the note below the table.ġ2,000 to 30,000 BTU. Since mini split heat pumps are used for heat from chilly days in Florida to all winter long in northern climates, the range is a lot broader. And if you plan to heat it too, then go as high as 48,000 – the colder your climate, the more BTUs needed. However, if the garage isn’t well-insulated, and most aren’t, consider a 24,000 to 36,000 BTU system for AC.
That’s 576 square feet, and the chart says about 14,500 BTU for AC. But if you plan to heat the space too, something 24,000 BTU for a warm climate and up to 48,000 BTU for a cool or cold climate will be needed, according to the chart below which shows mini split size for heating. Mini Split Cooling Size Chart (Square Footage to BTU) Room Sizeįor AC only, you’ll need about 20,000 BTU. The right column gives you the BTUs needed for spaces this size in most climates. The column on the left is room size from a small room to a whole house.
Btu ac per sq ft pro#
This table is based on pro contractor recommendations. Can One Mini-Split Indoor Unit Cool 2-3 Rooms?.Can You Slightly Oversize A Mini Split?.Should I Have the Same Cooling and Heating BTU for Mini Split?.
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