How to use this FAQ

These answers are written for homeowners who are close to booking a real project, not for generic HVAC browsing. The right question is rarely "which brand is best" in isolation. The stronger question is whether the proposed system fits the address, the permit path, the electrical panel, the duct or drain route, the HOA packet, the rebate documentation, and the final commissioning record.

If an answer mentions rebates, it is intentionally cautious. LADWP, TECH Clean California, HEEHRA, manufacturer programs, tax rules, and utility territories can change by date, budget, equipment, income, reservation status, and installation timing. A file-ready contractor should separate likely eligibility from guaranteed money and should show what document supports each assumption.