Texas spans 4 IECC climate zones. Find your exact zone, design temperatures, and get free Manual J load calculations for any Texas location.
Hot - Humid
Hot - Dry
Warm - Humid
Warm - Dry
Based on Climate Zone 2A (Hot - Humid), here are typical HVAC equipment specifications for Texas installations.
Annual Fuel Utilization Efficiency for Texas furnaces
Seasonal Energy Efficiency Ratio for Texas AC systems
Texas's climate zone data ensures proper equipment sizing. No more callbacks from oversized or undersized systems.
Texas building departments require IECC-compliant Manual J calculations. Our tool uses official Texas climate data.
Right-sized systems based on Texas climate data reduce energy costs for homeowners and improve your reputation.
Upload your Texas 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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