YES — California has adopted Title 24-2022 which requires HVAC loads be calculated per ACCA Manual J for new construction and major renovations.
California has adopted Title 24-2022 as the statewide energy code for residential construction.California uses Title 24 which is stricter than IECC
Primary zone covering Los Angeles and surrounding areas
Additional zone in California
Additional zone in California
Additional zone in California
Additional zone in California
Additional zone in California
Additional zone in California
Local California 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. California follows Title 24-2022 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 California instantly at AutoHVAC — upload your blueprint and receive a permit-ready report in 60 seconds. Alternatively, local California HVAC contractors charge $150-400 with 3-7 day turnaround, or you can use DIY software like Wrightsoft or CoolCalc ($5-200+/month).
California includes IECC climate zones 2B, 3B, 3C, 4B, 4C, 5B, 6B. Zone 2B is most common, covering cities like Los Angeles, San Diego, San Francisco. Climate zone data determines design temperatures and insulation requirements used in Manual J calculations.
Join thousands of California contractors who use AutoHVAC for instant, permit-ready load calculations.
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