Electric vs Gas Water Heater: Which Makes Sense for Your Home?

By Emergency Water Heater SLC Team · May 24, 2026 · Updated March 7, 2026 · 5 min read

Choosing between electric and gas water heaters involves comparing upfront costs, monthly operating expenses, lifespan, and your household’s hot water demand. Both are reliable; the right choice depends on your home’s utilities, family size, and budget. This guide breaks down the economics and Utah-specific considerations for both fuel types.

Quick Comparison

Factor	Electric	Gas
Upfront cost	$800-$1,500	$900-$1,800
Annual operating cost (Utah)	$550-$650	$300-$400
Recovery rate	Slow (70-80 min for tank)	Fast (30-50 min)
Lifespan	12-15 years	8-12 years
Energy efficiency	95%+	80-85%
Best for	Small families, apartments	Large families, multiple bathrooms
Maintenance	Lower (no venting)	Higher (venting, burner checks)

Understanding the Costs

Electric water heater (Utah):

Upfront: $1,000-$1,200 installed
Annual operating: ~$600 (4,550 kWh/year ÷ 11¢/kWh Utah average)
10-year cost: $7,000-$7,500

Gas water heater (Utah):

Upfront: $1,100-$1,400 installed
Annual operating: ~$350 (293 therms/year × $1.20/therm Rocky Mountain Power)
10-year cost: $4,800-$5,100

Gas wins on operating cost. Over 10 years, gas saves $2,000-$2,600 despite lower lifespan.

Energy Efficiency

Electric heaters are MORE efficient: Nearly all electricity goes to heating water (95%+ efficiency). No heat loss up a chimney.

Gas heaters are LESS efficient: Heat escapes through the vent (80-85% efficiency). However, gas fuel is cheaper, so monthly costs are still lower.

Winner: Electric for efficiency, but gas for total cost of ownership.

Recovery Rate (Critical for Large Families)

The recovery rate is how fast a heater can reheat the tank after a shower empties it.

Electric (slow recovery):

40-gallon tank reheats in 70-80 minutes
Second shower must wait 1+ hour (or run cold)
Not suitable for large families or back-to-back showers

Gas (fast recovery):

40-gallon tank reheats in 30-50 minutes
Back-to-back showers possible
Better for families of 4+

Workaround: Get a larger tank (75-80 gallons) if using electric. This delays the need for recovery time but increases cost.

Lifespan and Replacement

Electric: 12-15 years (longer lifespan due to no gas corrosion)
Gas: 8-12 years (shorter; venting components corrode faster)

Over 20 years:

Electric: One unit ($1,200) + replacement ($1,200) = $2,400
Gas: 2-3 units ($1,400 each) = $2,800-$4,200

Electric has lower replacement costs over time.

Utah-Specific Considerations

Gas water heaters in Utah:

Rocky Mountain Power gas: $1.15-$1.25/therm (competitive rate)
Venting affected by altitude (4,200-4,800 ft Wasatch Front)
May need power vent at high elevations
Hard water requires annual flushing

Electric water heaters in Utah:

Utility rates: 10-12¢/kWh (mid-range national average)
No venting issues at altitude
Slower recovery in cold winters (ground temp affects incoming water)
Hard water still requires maintenance

Winner for Utah: Gas, due to lower utility costs and good availability.

Heat Pump Water Heaters (Hybrid)

A hybrid option: electric heat pump water heaters use electricity to move heat instead of generating it, achieving 50% more efficiency than standard electric.

Cost: $1,500-$2,200 installed
Operating cost (Utah): ~$350/year (similar to gas)
Lifespan: 12-15 years
Recovery rate: Moderate (faster than standard electric, slower than gas)

Heat pumps are ideal if:

You want electric efficiency without slow recovery
You’re avoiding gas for any reason
You qualify for Rocky Mountain Power rebates ($300-$550)

Decision Framework

Choose Electric if:

Small household (1-2 people)
Limited hot water demand
You want lowest maintenance
No gas line available
Maximum efficiency is priority

Choose Gas if:

Large family (4+ people)
Multiple bathrooms
Back-to-back showers common
Gas already available
Lowest 10-year cost is priority

Choose Heat Pump if:

You want electric efficiency with better recovery
Rebate availability makes it competitive
Long-term (15+ years) ownership planned

Pre-Purchase Checklist

Household size and peak hot water demand
Current utility rates (gas and electric in your area)
Gas line available? (check basement/crawlspace)
Venting space available (gas models need chimney/vent)
Electrical panel capacity (electric needs 240V circuit)
Budget: upfront vs. long-term savings
Check utility rebates (Rocky Mountain Power offers both)

Find Local Help {#find-local-help}

A licensed plumber can assess your home’s suitability for either fuel type and explain local utility rates and incentive programs.

Service hub: Water Heater Replacement
Salt Lake City: Water Heater Replacement in Salt Lake City
Salt Lake County: Water Heater Replacement in Salt Lake County
Browse all Utah cities: Find Water Heater Services Near You

Frequently Asked Questions

Can I switch from electric to gas (or vice versa)?
Yes, but it costs extra. Converting requires new gas line, electrical work, or venting installation—add $1,000-$2,000 to the replacement cost.

Is tank size the same for both?
Usually yes (40-50 gallons standard), but electric users may want 75-80 gallons due to slow recovery.

What if I move before the heater pays for itself?
This favors upfront cost savings. Electric costs less initially, but if you stay 8+ years, gas saves money overall.

Can I use an electric tankless instead?
Yes, but only for single bathrooms (low flow rate). Electric tankless provides 2-4 GPM; large homes need gas tankless (7-11 GPM).

Sources and Update Policy

This article reflects 2026 utility rates for Utah and current efficiency standards.

We update annually with current Utah utility rates.

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