Building and energy codes in California have become quite complex over the last few years, and more are on the way as 2045 inches closer—when the state plans to reach carbon neutrality. Regulations can come from the federal, state, or municipal level as well, which often leaves homeowners struggling to sort through codes to know if their homes are compliant.
Hassler Heating & Air is a leading HVAC and home performance contractor serving Marin, Contra Costa, and Alameda counties. Our team stays on top of regulations in our service area to better provide reliable and long-lasting solutions. There are several in place now or coming in the near future that affect many common furnaces and air conditioners—here’s what you need to know:
What Are the Regulations for HVAC Systems?
In most cases a code-compliant replacement is required only when your current system dies, not when HVAC regulations go into effect. All new construction homes and large-scale renovations, however, must meet the standards immediately.
Low NOx Furnaces
The Bay Area Air Quality Management District (BAAQMD) issued new standards in March 2024 for gas-powered furnaces and water heaters. The goal is to phase out these systems over the course of the next few years, with stricter protocols at each step. First, the regulation calls for ultra-low-NOx residential central furnaces. Next, a zero-NOx standard takes effect, eliminating gas-powered equipment completely.
Timeline:
- Jan 1, 2024: Ultra-low-NOx is required for all new residential central furnaces
- Jan 1, 2027: Zero-NOx is required for all new residential water heaters
- Jan 1, 2029: Zero-NOx is required for all new residential and commercial furnaces
- Jan 1, 2031: Zero-NOx is required for all new commercial & multi-family water heaters and tankless water heaters
R-401A Refrigerant Bans
California is implementing strict regulations on refrigerants to reduce their environmental impact. These particularly focus on R-410A, a common refrigerant used in cooling systems, with a Global Warming Potential (GWP) of 2088. Homeowners with R-410A systems won't need to replace their units immediately, but they should be aware that servicing and repairing these systems will become increasingly expensive and challenging. Eventually, as supplies dwindle, replacement may become the only option.
Timeline:
- Jan 1, 2025: R-410A prohibited nationwide for all new HVAC systems
- Jan 1, 2030: Complete ban on R-410A refrigerant in California, only reclaimed refrigerant can be used in existing systems
Electric Home Requirements
Residential and commercial buildings account for 25% of the state's greenhouse gas emissions, This is why California is encouraging homeowners and businesses to convert their equipment to run on electricity, like heat pumps and heat pump water heaters. Starting in 2023, California's building code now requires all new homes and low-rise apartment buildings to be electric-ready, with dedicated outlets for electric appliances and EV charging. While this doesn't mandate all-electric homes, it facilitates future electrification.
Timeline:
While there's no set timeline for mandatory electrification of existing homes statewide, jurisdictions in the Bay Area will likely be some of the first to set stringent requirements.
Code-Compliant Heating & Cooling with Heat Pumps
Of the HVAC systems available today, heat pumps are the best option for meeting California's increasingly stringent energy and environmental regulations. These versatile systems are particularly well-suited for California's climate and offer numerous benefits, including:
- Energy efficiency
- Reduced carbon emissions
- Year-round comfort
- Healthier indoor air
- Quiet operation
- And more!
Heat pumps not only meet current and future regulations, but they also qualify for various incentives and rebates, including federal tax credits and local programs. Hassler Heating & Air offers high-performance heat pump and ductless mini split installations in the East Bay. By choosing a heat pump with our team, you can future-proof your home, ensure code compliance, and contribute to California's ambitious climate goals—all while improving efficiency and comfort.
