HVAC Load Calculator
Room BTU
Mini-split
Duct CFM
Baseboard
Room size (sq ft)
Ceiling height (ft)
Windows
Sun exposure
Shaded
Average
Very sunny
Insulation
Good
Average
Poor
Room use
Bedroom
Living room
Kitchen
Calculate room BTU
Zones
1
2
3
4
Area (sq ft)
Ceiling height (ft)
Windows
Sun exposure
Shaded
Average
Very sunny
Insulation
Good
Average
Poor
Size the mini-split
Equipment rating (BTU/hr)
Temperature split ΔT (°F)
Supply runs
Calculate CFM
Room size (sq ft)
Insulation
Good
Average
Poor
Circuit voltage
120
240
Cold climate?
No
Yes
Calculate baseboard watts
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HVAC Load Calculator