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Professional HVAC Load Calculation Report

See exactly what you'll receive: A complete Manual J calculation with equipment recommendations, generated from residential new construction blueprint analysis in under 60 seconds.

1,853 sq ft
Building Area
56,374 BTU/hr
Heating Load
23,468 BTU/hr
Cooling Load
60K BTU/hr
Furnace Sized
2.0 Tons
AC Equipment
95
HVAC IQ Score™
High Confidence

HVAC Load Calculation Report

Example Residence - Spokane, WA 99006

Generated:
August 17, 2025

Project Summary

Location
Spokane, WA 99006
Climate Zone
5B (Cool-Dry)
Design Temps
8°F / 91°F
Conditioned Area
1,853 sq ft
Stories
1
Foundation
Crawlspace

Building Envelope Specs(Extracted from Blueprint)

R-26
Wall Insulation
R-60
Ceiling Insulation
R-38
Floor Insulation
U-0.25
Window U-Factor
0.40
Window SHGC
2.0
ACH50

Load Component Breakdown

Heating Load Components

Envelope (walls, ceiling, windows)16,797 BTU/hr
Foundation17,323 BTU/hr
Air Infiltration5,938 BTU/hr
Mechanical Ventilation3,200 BTU/hr
Duct Losses6,816 BTU/hr
Total Heating Load56,374 BTU/hr

Cooling Load Components

Envelope (walls, ceiling, windows)8,234 BTU/hr
Solar Heat Gains6,120 BTU/hr
Air Infiltration2,340 BTU/hr
Occupants1,200 BTU/hr
Appliances & Lighting1,800 BTU/hr
Latent (humidity)3,774 BTU/hr
Total Cooling Load23,468 BTU/hr

Equipment Sizing Guidance

Heating Capacity
62,000 BTU/hr
(5.2 tons)
Cooling Capacity
24,000 BTU/hr
(2.0 tons)
System Type
Gas Furnace + AC

Spokane Permit & Compliance Information

Required Permits

Mechanical Permit
Required for HVAC installation/replacement
Apply Online

Code Compliance

• Energy Code: 2021 IECC
• Climate Zone: 5B (Cold)
• ResCheck: Required
• Manual J: Recommended (this report satisfies requirement)
Tip: This AutoHVAC report can be submitted directly with your permit application
Questions? Contact Spokane Development Services: (509) 625-6300
ACCA Manual J Compliant
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