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Manual-J Style Heating & Cooling Load Calculator
This tool estimates Manual-J style heating and cooling loads. For code compliance, always use an ACCA-approved Manual J tool or licensed professional.
Specimen Home Profile
Wall R Display
Wall Effective R-Value: R-15.0 (from "2x4 Stud Wall, R-13 Batt, Vinyl Siding")
Window U Display
Window U-Value: 0.55 (from "Double Pane, Clear, Aluminum/Vinyl")
SHGC Display
Window SHGC: 0.70 (from "Double Pane, Clear, Aluminum/Vinyl")
Design Conditions
Building Conditions
Envelope R / U Values
Infiltration & Internal Gains
Text PDF Error
Customer Information
Contractor Information
Whole-House Results
Heating:
Conduction Loss:
Infiltration Loss:
Total Heating Load:
0
0
0
Cooling:
Conduction Gain:
Infiltration Gain:
0
0
Solar Gain (Windows):
0
Internal Sensible Gains:
0
Latent Load (Approx):
Total Cooling Load:
0
0
Approx Cooling Capacity (tons):
0
Room-by-Room Loads
Sensible: –
Latent: –
CFM: –
Room-by-Room Loads
Sensible: –
Latent: –
CFM: –
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