🔧 Engineering Decision Tool D3

HVAC Load Calculation Calculator

Interactive calculator

Interactive calculator for HVAC Load Calculation

Floor Area (ft²)

Ceiling Height (ft)

Wall U-Factor (Btu/(hr·ft²·°F))

Roof U-Factor (Btu/(hr·ft²·°F))

Window U-Factor (Btu/(hr·ft²·°F))

Total Window Area (ft²)

Air Infiltration Rate (ACH)

Indoor Design Temperature (°F)

Outdoor Design Temperature (°F)

Number of Occupants

Lighting Power Density (W/ft²)

Equipment Power Density (W/ft²)

📖 Related Knowledge

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Major industrial facility

Small project with budget constraints

Project in extreme conditions

Cost reduction initiative