YES — Hawaii has adopted 2015 IECC which requires HVAC loads be calculated per ACCA Manual J for new construction and major renovations.
Hawaii has adopted 2015 IECC as the statewide energy code for residential construction.
Covers the entire state including Honolulu and Pearl City
Local Hawaii contractors typically charge $150-400 for Manual J calculations. AutoHVAC offers your first Manual J calculation completely FREE with permit-ready results in 60 seconds — no credit card required.
Yes. Hawaii follows 2015 IECC which requires heating and cooling loads be calculated per ACCA Manual J for permits on new construction and major HVAC work.
You can get a free Manual J calculation for Hawaii instantly at AutoHVAC — upload your blueprint and receive a permit-ready report in 60 seconds. Alternatively, local Hawaii HVAC contractors charge $150-400 with 3-7 day turnaround, or you can use DIY software like Wrightsoft or CoolCalc ($5-200+/month).
Hawaii includes IECC climate zone 1A. This zone covers the entire state including Honolulu, Pearl City, Hilo. Climate zone data determines design temperatures and insulation requirements used in Manual J calculations.
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