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Mini Split Systems

Sizing Guide

A mini-split can cool a large house - over 3,000 square feet - if the equipment has the appropriate BTU rating. Depending on factors like geographic location, ceiling height, insulation depth, and the extent of windows, you can expect to need 25 to 60 BTUs per square foot of living space. This selector will help you figure out what size system you will need!

Step One: Choose how many zones or rooms you need to heat/cool

In most cases you will have a zone for each room, however there are instances where you can use a unit to cover several different rooms based on your home's layout.
If you are unsure how many zones you need, please contact us!

Square Foot Coverage BTU Tonnage
240  6,000 0.5
360 9,000 0.75
480 12,000 1
600 15,000 1.25
720 18,000 1.5
840 21,000 1.75
960 24,000 2
1080 27,000 2.25
1200 30,000 2.5
1320 33,000 2.75
1440 36,000 3
1560 39,000 3.25
1680 42,000 3.5
1800 45,000 3.75
1920 48,000 4
2040 51,000 4.25
2160 54,000 4.5
2280 57,000 4.75
2400 60,000 5

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