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