Gas vs Electric Water Heater in Los Angeles — Which Is Cheaper to Run?

April 10, 2026  |  Buying Guide

Los Angeles is at the center of a major shift in home energy policy. California is progressively restricting natural gas in new construction, which makes the gas vs. electric water heater decision more complex than it used to be. Here's what you need to know.

Operating Cost in Los Angeles

The cost to run a water heater depends on the unit's efficiency and the cost of the fuel. In Los Angeles:

• SoCal Gas rates typically run $1.20–$1.80 per therm
• LADWP electric rates typically run $0.22–$0.32 per kWh (tiered)

For a standard 50-gallon tank water heater serving a family of 4:

• Gas tank: roughly $25–$40/month to operate
• Standard electric resistance tank: roughly $45–$65/month
• Heat pump water heater (electric): roughly $12–$20/month

Key takeaway: Standard electric resistance water heaters cost significantly more to run than gas in LA. But heat pump electric water heaters cost significantly less than both.

The California Factor

California is phasing natural gas out of new residential construction. The California Energy Commission's Title 24 building standards increasingly favor electric appliances, and many LA-area cities are moving toward all-electric new construction.

For existing homes: you can currently replace a gas water heater with another gas unit. But regulations may change over the next 5–10 years, and some homeowners are choosing to electrify now to avoid a future forced switch under less favorable rebate conditions.

Practical Recommendation for LA Homeowners

• Replacing an existing gas unit: A high-efficiency gas tankless unit remains a strong choice — lower operating cost than tank, long lifespan, good rebates available.
• New installation or major renovation: A heat pump water heater is worth serious consideration — lower operating cost than gas, largest available rebates, and California-future-proof.
• Tight budget / replacement: Gas tank unit. Lowest upfront cost, installation.

Call Simple Water Heater & Filtration for an honest assessment of the best option for your specific home, gas infrastructure, and budget.