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HVAC Load Calculator
Calculate heating and cooling requirements based on room size, insulation, and climate zone
Room Area
(sq ft)
Ceiling Height
(ft)
Insulation Level
Poor insulation
Average insulation
Good insulation
Excellent insulation
Climate Zone
Cool climate (20 BTU/sq ft)
Moderate climate (25 BTU/sq ft)
Warm climate (30 BTU/sq ft)
Hot climate (35 BTU/sq ft)
Windows/Sun Exposure
Few windows, shaded
Average windows
Many windows, sunny
Calculate