Tennessee spans 2 IECC climate zones. Find your exact zone, design temperatures, and get free Manual J load calculations for any Tennessee location.
Warm - Humid
Mixed - Humid
Based on Climate Zone 3A (Warm - Humid), here are typical HVAC equipment specifications for Tennessee installations.
Annual Fuel Utilization Efficiency for Tennessee furnaces
Seasonal Energy Efficiency Ratio for Tennessee AC systems
Tennessee's climate zone data ensures proper equipment sizing. No more callbacks from oversized or undersized systems.
Tennessee building departments require IECC-compliant Manual J calculations. Our tool uses official Tennessee climate data.
Right-sized systems based on Tennessee climate data reduce energy costs for homeowners and improve your reputation.
Upload your Tennessee blueprint and get a professional Manual J load calculation with official climate zone data. First report is FREE.
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Get detailed climate zone information for major cities
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