I have installed and lived with both gas and electric water heaters, and the right pick depends more on your utility rates and venting situation than on which is technically better. Here is the honest comparison, plus the five water heaters I would buy today.
Comparison Table
| Type | Annual Energy | Lifespan | Recovery Rate |
|---|---|---|---|
| Gas Tank | 8-12 yrs | 50 gph | |
| Electric Tank | 10-15 yrs | 20 gph | |
| Tankless Gas | 15-20 yrs | Unlimited | |
| Heat Pump Electric | 12-15 yrs | 15 gph |
1. Rheem Performance Platinum 50 Gallon Gas - Verdict: Best Gas Tank Heater
The Rheem Performance Platinum is a 50 gallon gas tank water heater that hits the sweet spot for most three to four bedroom homes. A 40,000 BTU burner recovers about 50 gallons per hour, so back-to-back showers stay hot. The 12-year tank warranty is the longest in the price tier, and the self-diagnostic LED makes service calls cheaper. Power-vent variants exist if your house lacks an atmospheric flue, but the standard model is what most retrofits need.
2. AO Smith Signature 50 Gallon Electric - Verdict: Best Electric Tank
The AO Smith Signature 50 gallon electric tank is the unit I recommend for homes without gas service. Two 4,500 watt elements deliver about 20 gallons per hour of recovery, which is slower than gas but adequate for two adults and one or two kids if showers are not simultaneous. The blue diamond glass-lined tank resists corrosion, and the 10-year warranty covers parts and labor for several years. Install requires a dedicated 30 amp 240V circuit, so check your panel capacity first.
3. Rinnai RU199iN Tankless Gas - Verdict: Best Tankless Gas
The Rinnai RU199iN is the tankless gas unit I would install in a high-demand home with multiple bathrooms. It delivers 11 gallons per minute of hot water at a 35 F temperature rise, which is enough for two showers and a dishwasher running together. WiFi control through the Rinnai app lets you set vacation mode remotely, and the recirculation pump option keeps hot water instant at distant fixtures. Install requires a larger gas line and dedicated venting, but the unit lasts close to 20 years.
4. Rheem ProTerra Hybrid Heat Pump - Verdict: Best Heat Pump Electric
The Rheem ProTerra Hybrid is a heat pump water heater that uses about a third the electricity of a standard electric tank. It pulls heat from ambient air, so it cools and dehumidifies the space it sits in (great for a basement, less ideal for a closet). Most utilities offer rebates ofcurrent pricing tocurrent pricing for heat pump water heaters, which can drop the install close to a standard electric. The 65 gallon model has the best recovery for families.
5. Bradford White RG250T6N 50 Gallon Gas - Verdict: Best Pro-Grade Gas Heater
Bradford White sells through plumbing supply houses, so most homeowners do not see them at big box stores. The RG250T6N is the gas tank I would buy if I planned to stay in a house for 15 years. The Vitraglas tank lining and Hydrojet sediment-reducing dip tube outlast cheaper brands by several years. The Defender FVIR system meets all current safety codes for flammable vapor ignition resistance. Expect to hire a plumber, since most retail channels do not stock this brand.
How to Choose Between Gas and Electric
Start with what you have. If your home has natural gas service and a working flue or power vent, stick with gas. The fuel is cheaper per BTU in most US markets, and recovery is faster, so a 40 gallon gas tank does the same work as a 50 gallon electric.
Electric makes sense in three situations: no gas service available, very low electricity rates (under 10 cents per kWh), or a rooftop solar system that covers daytime usage. A heat pump water heater turns electric from “more expensive to run” to “cheapest to run” but adds upfront cost and needs a space with ambient air above 50 F.
Sizing matters more than fuel type. A family of four typically needs a 50 gallon gas tank or a 65 gallon electric. Tankless gas eliminates sizing concerns but requires upgraded gas piping. Heat pump units take longer to recover, so size up by one tier compared to a standard electric tank.
Frequently asked questions
Is gas or electric cheaper to run?+
Gas is cheaper to run in most US states because natural gas costs less per BTU than electricity. Electric is cheaper in areas with low electricity rates (under 10 cents per kWh) or homes with rooftop solar.
How long do water heaters last?+
Gas tank water heaters last 8 to 12 years. Electric tank heaters last 10 to 15 years. Tankless gas units can last 20 years with annual descaling. Heat pump electric units last 12 to 15 years.
Can I switch from gas to electric (or vice versa)?+
Yes but expectcurrent pricing tocurrent pricing in install costs for new circuits, gas line work, venting changes, or panel upgrades. The payback period is usually 5 to 10 years.