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