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Sizing Guide Step Two:
Use the calculator to help you figure out what size BTU mini-split system you need for your single zone by selecting the square footage range that best fits your measured zone. You can also select the mini-split type you want to help narrow results to your direct needs. If you are unsure about the mini-split type, see the guide for types below.
Rule of Thumb
A good rule of thumb is to take the square footage from the zone you need to heat/cool, and to multiply by 25. That will give you a good idea of the BTUs that are needed to adequately heat or cool the zone.
Note that this is just a rule of thumb and different factors such as geographical location, climate, windows in zones, and more can change the BTUs needed.
Size Chart:
Square Footage | BTU | Tonnage |
Wall Mounted
Ceiling Cassette
Concealed Duct
Floor Mounted
Low Wall/Ceiling Mount