Marion is located in IECC Climate Zone 5A (Cool - Humid). Get accurate Manual J load calculations with official design temperatures for Marion.
Climate Zone 5A requires precise load calculations. Upload your Marion blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Marion's exact design temperatures (0°F winter / 91°F summer).
Enter your ZIP code to confirm it's in Marion and get climate zone details.
Official ASHRAE design temperatures for Marion, used for accurate Manual J load calculations.
Minimum insulation and window requirements for Marion per IECC 2021.
Energy Code: 2020 IECC
Upload your Marion blueprint and get a professional Manual J load calculation using official Zone 5A design temperatures. First report is FREE.
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