Orange is located in IECC Climate Zone 6A (Cold - Humid). Get accurate Manual J load calculations with official design temperatures for Orange.
Climate Zone 6A requires precise load calculations. Upload your Orange blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Orange's exact design temperatures (-9°F winter / 89°F summer).
Enter your ZIP code to confirm it's in Orange and get climate zone details.
Official ASHRAE design temperatures for Orange, used for accurate Manual J load calculations.
Minimum insulation and window requirements for Orange per IECC 2021.
Energy Code: 2021 IECC
Upload your Orange blueprint and get a professional Manual J load calculation using official Zone 6A design temperatures. First report is FREE.
Join 10,000+ Orange contractors who trust AutoHVAC