Room Specs
Room Length15 ft
Room Width12 ft
Ceiling Height8 ft
Sun Exposure
Room Occupants2 People
Located in Kitchen?Adds 4,000 BTU load
Required Cooling Capacity
3,600 BTU/h
Calculated heat capacity needed for the space.
Recommended Unit Size
0.75 Ton (9,000 BTU)
Nearest standard commercial capacity size.
Exact Tonnage Load
0.30 Tons
Based exactly on 3,600 BTU/hr cooling load.
Calculated Room Area
180 sq. ft.
Equivalent to 16.7 sq. meters.
Sizing Methodology & Factors
The calculator implements standard EPA-recommended adjustments:
- Base cooling requirement: 20 BTU per square foot of room space (for standard ceilings).
- Ceiling Height: Spaces with ceilings taller than 8 feet require additional capacity to cool the larger volume of air.
- Sun exposure: If the room is heavily shaded, reduce capacity by 10%. If the room is very sunny, increase capacity by 10%.
- Occupants: Standard calculation assumes 2 occupants. If more than 2 people regularly use the room, add 600 BTU for each additional person.
- Kitchen: If the unit is installed in a kitchen, add 4,000 BTU to account for cooking appliances.