HVAC is central to home addition Title 24 compliance — equipment efficiency (e.g., SEER2/HSPF2), duct performance, and increasingly heat pumps.
HVAC under Title 24
- Equipment efficiency ratings
- Duct sealing and insulation (HERS-verified where applicable)
- Heat pumps, favored statewide under current code
Title 24 is a statewide California energy code. Home Addition projects follow the same statewide standards; the exact requirements depend on your project's scope and address, which we model in CEC-approved compliance software. Related: HERS verification.
Related: Home Addition Title 24 overview · pricing · Title 24 guide.