Guides
Heat Pump Guides
Rules, refrigerants and fit, written for Walnut Creek, Lamorinda and Danville homes. Each guide carries an "as of" date and links to the official source.
Bay Area gas appliance rulesBAAQMD's zero-NOx standards: what applies in 2027, 2029 and 2031, and what the rules don't require.Read the guide
Heat pump refrigerant changesR-410A, R-454B and R-32 after EPA's 2026 limit, and what it means for repairs and new systems.Read the guide
Is a heat pump right for my home?Climate, home age and ducts, noise and placement, panel capacity and solar.Read the guide
Heat pump rebate statusDated table of what's open and what's closed for Contra Costa homes.See rebates
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