Comparison
Gas vs Electric Water Heater: Cost Comparison (2026)
Gas costs more to install but less to operate. Electric is simpler but more expensive to run — unless you go heat pump.
Side-by-Side Comparison (50-Gallon Tank)
| Factor | Gas | Electric |
|---|---|---|
| Installed cost | $700–$2,500 | $600–$1,800 |
| Equipment cost | $400–$800 | $300–$700 |
| Annual energy cost | $250–$400 | $400–$550 |
| Energy efficiency | ~60% (standard) | ~95% (standard) |
| Requires venting | Yes | No |
| Requires gas line | Yes | No |
| Requires 240V circuit | No | Yes |
| Recovery rate | Fast (40+ GPH) | Slower (20–25 GPH) |
| Lifespan | 8–12 years | 10–15 years |
| Rebates available | Rare | Rare |
| Works in power outage | Some models | No |
Choose Gas When
- Gas line already exists
- High hot water demand
- Want fast recovery
- Lower operating cost priority
Choose Electric When
- No gas line available
- Simpler installation needed
- Lower upfront budget
- Replacing existing electric
Choose Heat Pump When
- Staying 10+ years
- Rebates available in your area
- Lowest operating cost
- Climate supports it (40°F+)
Frequently Asked Questions
Is a gas or electric water heater cheaper to run?▼
Gas is typically cheaper to operate ($250–$400/year) than standard electric ($400–$550/year) due to lower natural gas prices in most areas. However, heat pump electric water heaters can match or beat gas on operating cost ($150–$300/year).
Can I switch from gas to electric water heater?▼
Yes, but it adds cost: you will need a 240V dedicated circuit ($200–$500 for an electrician), and may need panel capacity. You will also need to cap the gas line. Total conversion cost beyond the unit: $300–$800. Switching the other direction (electric to gas) requires running a gas line, which is more expensive.
Which lasts longer, gas or electric?▼
Electric tank water heaters typically last 10–15 years. Gas tanks last 8–12 years. The difference is largely due to the gas burner and venting components that electric units lack. Heat pump models are still relatively new but expected to last 12–15 years.