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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
95.0%
HVAC IQ Score

HVAC Load Calculation Report

Example Residence - Spokane, WA 99006

Generated:
August 17, 2025

Executive Summary

This 1,853 sq ft single-story residence with crawlspace foundation requires a 2.0-ton cooling system and 56,374 BTU/hr heating capacity. The analysis includes zone load calculations, ductwork sizing, and equipment recommendations based on ACCA Manual J 8th Edition standards.

Zone Load Calculation Summary

ZoneArea (sq ft)Heating (BTU/hr)Cooling (BTU/hr)BTU/sq ft
Main Living Areas1,85348,87421,72026.4
System Adjustments-7,5001,748-
TOTAL BUILDING LOAD1,85356,37423,46830.4

Note: Zone-based calculation reflects actual blueprint analysis. System adjustments include duct losses (crawlspace location) and safety factors per ACCA Manual J standards.

Equipment Recommendations

🔥 Heating System

  • • Gas Furnace: 60,000 BTU/hr input
  • • 96% AFUE efficiency recommended
  • • Variable speed blower preferred

❄️ Cooling System

  • • Central AC: 2.0 ton capacity
  • • 16+ SEER efficiency required
  • • Single-stage compressor suitable

Smart Analysis & Insights

Load Balance Analysis

Your heating load (56,374 BTU) is 2.4x higher than cooling (23,468 BTU) - typical for Spokane's heating-dominant climate. This profile indicates good building envelope design for cold climate performance.

Efficiency Benchmark

At 30.4 BTU/sq ft heating load, your home performs well for a single-story crawlspace home. Good insulation and tight construction (2.0 ACH50) detected from blueprint analysis.

Equipment Optimization

Compact 2.0-ton system perfectly sized for your load profile. Natural gas heating with standard AC provides cost-effective comfort for Spokane's climate.

Energy Cost Projection

Estimated annual energy costs: $1,400-1,800 heating, $320-450 cooling based on Spokane area rates. High-efficiency equipment could save $350+ annually.

Analysis based on ACCA standards and regional climate data
AI-powered insights from building analysis

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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