Sample Report1,853 sqft single-story home -- Spokane, WA (Zone 5B)
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Professional HVAC Load Calculation Report

Complete Manual J calculation with equipment recommendations, generated from your residential new construction blueprint analysis.

57,050 BTU/hr
Heating Load
21,159 BTU/hr
Cooling Load
93
HVAC IQ Scoreâ„¢
High Confidence

HVAC Load Calculation Report

ACCA Manual J Compliant Analysis

Generated:
4/15/2026
Location
Spokane, WA
Climate Zone
5B (Cool-Dry)
Design Temps
8°F / 91°F
Conditioned Area
1,853 sq ft
Stories
1
Foundation
Crawlspace
R-26
Wall Insulation
R-60
Ceiling Insulation
R-38
Floor Insulation
U-0.25
Window U-Factor
0.30
Window SHGC
2
ACH50

Load Component Breakdown

Heating Load Components

Envelope (walls, ceiling, windows)12,512 BTU/hr
Foundation19,148 BTU/hr
Air Infiltration6,169 BTU/hr
Mechanical Ventilation2,016 BTU/hr
Duct Losses6,485 BTU/hr
Total Heating Load57,050 BTU/hr

Cooling Load Components

Envelope (walls, ceiling, windows)3,229 BTU/hr
Solar Heat Gains4,508 BTU/hr
Air Infiltration1,592 BTU/hr
Occupants1,085 BTU/hr
Appliances & Lighting2,100 BTU/hr
Latent (humidity)1,209 BTU/hr
Total Cooling Load21,159 BTU/hr

Room-by-Room Load Breakdown

HeatingCooling
RoomArea (sqft)BTU/hr
CFM
Sensible
Total
CFM
Living4635,173873,1483,446146
Kitchen2782,813471,6981,87779
Master Bedroom3343,306562,0502,29795
Bedroom 22222,111369101,04242
Bedroom 31851,759309851,11246
Bathroom 11119161533238915
Bathroom 2746111023728711
Dining1851,992341,0541,17349
Building Total1,85218,68131410,41411,623482

All loads include proportionally distributed building-level components (foundation, ventilation, duct losses, internal gains) and safety/equipment factors. Heating CFM uses 55°F ΔT (furnace). Cooling CFM derived from sensible load at 20°F ΔT per ACCA Manual D.

Equipment Sizing — Manual S

Equipment Size
2.0 Ton
Single / Multi Stage
System Type
Gas Furnace + AC
Manual S Compliance
Compliant
Heating Capacity at Design
73,267 BTU/hr
128% of load at 8°F outdoor
Cooling Capacity at Design
24,000 BTU/hr
113% of load (18,000 sensible)
Efficiency Ratings
SEER2 17 | EER2 12.5 | AFUE 96%
Furnace Size
80,000 BTU/hr input
AFUE 96% (73,267 BTU/hr output)

Local HVAC Permits & Forms

Spokane, WA

Required HVAC permits and energy compliance forms for your project location

Mechanical Permit

Required for HVAC installation/replacement in Spokane

PERMITRequired for HVAC work in Spokane
Apply Online

Energy Code Requirements

Energy Code:2021 IECC
REScheck Required:Yes
Manual J Required:Yes
Permit requirements are specific to your project location. Always verify current requirements with your local building department.

What's Next?

Share these results with HVAC contractors for accurate quotes

Use the load calculations to ensure properly sized equipment

Consider both heating and cooling needs for your climate zone

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