Air District Rules – Your Questions Answered
Is there an upcoming gas ban? Short answer – no.
You may have read about an upcoming “ban on gas appliances.” The information often refers to new regulations from the Bay Area Air District that phase out the sale of new water heaters that emit smog-forming nitrogen oxide (NOx) pollution.
This blog post answers the most frequently asked questions about the rules, and who would and would not be affected.
What are the Air District rules?
In 2023, following a public process, the Bay Area Air District passed building appliance rules that will require future space and water heaters to be free of NOx emissions. The best zero NOx options currently available are efficient, electric heat pump water heaters and heat pump HVAC systems.
The rules apply only to new equipment and do not require replacing existing water heaters or furnaces. The rules will prohibit both the sale and installation of polluting appliances, following the effective dates:
- 2027 – only zero NOx water heaters can be sold or installed in the Bay Area.
- 2029 – only zero NOx furnaces can be sold or installed in the Bay Area.
- 2031 – only zero NOx large commercial water heaters can be sold or installed in the Bay Area.
No. Property owners enrolled in CARE, FERA, or other low-income programs — and those who are housing cost-burdened — qualify for a certified exemption.
No. The rules do not apply to existing home equipment or to gas stoves, dryers, fireplaces or other gas appliances. They are only applicable when existing equipment fails or needs replacement after the deadlines.
No. Contrary to popular belief, 90% of Bay Area single-family homes can go all-electric on a 100 Amp electrical panel. Many newer 120-volt plug-in models require no new wiring at all. For the few homes that may require a service upgrade or other expensive electrical changes, the staff proposal includes an exemption.
You will likely be exempt from the rules. The proposed exemption applies when the existing water heater location has less than 700 cubic feet of space and is not adjacent to a larger space, or when the unit is in a garage with a ceiling height under 7.2 feet, or a non-garage space under 6 feet tall. A licensed contractor must certify the constraint if the rule exemptions are approved in Fall 2026.
The average incremental cost of a standard heat pump water heater installation — compared to a like-for-like gas replacement — is approximately $3,500. The equipment itself costs $600–$1,600 more than a comparable gas unit; the remainder is labor and installation. Rebates from Silicon Valley Clean Energy (SVCE) and other state programs can significantly offset these costs.
Modern heat pump heating and cooling (HVAC) systems are more efficient than traditional air conditioning units with gas furnaces and are less expensive to operate, resulting in average monthly bill savings of $25-$50, according to recent studies. Similarly, research has shown that heat pump water heaters can save the typical home $20-$35 per month compared to traditional gas water heaters, when the equipment operation is paired with an electrification-friendly rate, such as the Electric Home (E-ELEC) rate, which is available to all community choice energy and PG&E customers.
SVCE currently offers a $2,500 rebate, or $3,500 for income-qualified customers, who install a heat pump water heater. (There is an additional $500 seasonal bonus through June 30 for heat pump water heaters.)
SVCE also offers multiple services to support customers interested in getting a heat pump water heater or heat pump HVAC system. Reserve your rebate and claim your reimbursement through the SVCE Home Rebates program.
When a water heater fails, and an immediate zero-NOx installation is not feasible, licensed contractors will be authorized to use temporary gas loaner units while the permanent installation is arranged. This is a rare scenario — 75% of HPWH single-family installs take one day, and plug-in 120V models can be installed the same day in many homes. SVCE also offers an emergency water heater replacement service.
Large-scale public awareness campaigns and targeted contractor outreach are planned for 2026. The Air District is also building an online portal in multiple languages for exemption applications that will direct all users to available rebates and financing. Resources like switchison.org already provide rebate lookups by zip code, contractor matching, and product guidance.
Also known as the flexibility amendments — including exemption categories, eligibility thresholds, compliance dates, and the application process — are still being finalized and are subject to change. The Air District board is set to meet and vote to finalize the recommendations this fall.
Learn more about the facts of these rules at Know The Facts.
Silicon Valley Clean Energy Customer Support for Upgrading to a Heat Pump Water Heater/Heat Pump HVAC
If you need assistance in finding a contractor and stacking rebates, use the free SVCE Assisted Home Upgrades tool. This free service allows you to request project quotes from multiple contractors and apply for all eligible rebates with a single application – all in one convenient place.
Broken water heater and need an emergency replacement? Services such as the SVCE Emergency Water Heater Replacement Program offer support for those in urgent need of a new water heating solution. Instead of a standard replacement, SVCE will help you upgrade to an energy-efficient heat pump water heater.
We will take care of it all for you, starting with a home energy assessment to identify the ideal equipment to fit your needs. Our partner contractors will handle the installation with fair, transparent pricing, and apply all applicable rebates. Income-qualified customers can get upgrades for free. Learn more.
