Gas vs Electric Dryer Calculator

Gas vs Electric Dryer Calculator

This is a ROUGH ESTIMATE based on hardcoded average energy consumption (0.22 therms/gas load, 5.2 kWh/electric load). Real consumption varies by dryer efficiency, venting, load size, moisture sensor, and model. Break-even is only as good as these assumptions.

Last updated: March 2026 | By Patchworkr Team

Cost Comparison

What's the Difference?

Gas dryers heat air using natural gas burners, while electric dryers use electric resistance heating elements. Gas dryers typically cost more upfront ($600-$1,200) compared to electric dryers ($400-$900), but natural gas is usually cheaper per unit of energy than electricity, resulting in lower operating costs over time.

A typical gas dryer consumes about 22,000 BTU (0.22 therms) per load, while an electric dryer uses approximately 5.2 kWh per load. With average US rates around $1.50/therm for gas and $0.12/kWh for electricity, gas dryers generally cost $0.33 per load versus $0.62 for electric—a 47% savings per load.

However, gas dryers require a natural gas hookup, professional installation, and venting, which can add $150-$500 to installation costs. Electric dryers only need a 240V outlet (standard in most homes) and can be installed DIY. The break-even point—when gas operating savings offset the higher purchase price—typically ranges from 1-4 years depending on usage and local utility rates.

How to Compare Costs

The Calculations

Annual operating costs are calculated using typical energy consumption:

Gas Annual Cost:
Loads/Week × 52 × 0.22 therms × Gas Rate
Electric Annual Cost:
Loads/Week × 52 × 5.2 kWh × Electric Rate
Break-Even Time (years):
(Price Difference) ÷ (Annual Savings)

Typical Energy Consumption

Gas dryer: ~22,000 BTU or 0.22 therms per load
Electric dryer: ~5.2 kWh per load (equivalent to ~18,000 BTU)
Gas BTU to therms: 1 therm = 100,000 BTU
Average load time: 45-60 minutes

Example Comparison

Typical household: 5 loads per week

Given:
Loads per week: 5
Gas rate: $1.50/therm
Electric rate: $0.12/kWh
Gas dryer cost: $800
Electric dryer cost: $500
Step 1:
Calculate gas dryer annual cost:
5 × 52 × 0.22 × $1.50 = $85.80/year
Step 2:
Calculate electric dryer annual cost:
5 × 52 × 5.2 × $0.12 = $162.24/year
Step 3:
Calculate annual savings with gas:
$162.24 - $85.80 = $76.44 saved/year
Step 4:
Calculate break-even time:
($800 - $500) ÷ $76.44 = 3.9 years
Result:
The gas dryer saves $76.44 per year in operating costs. Despite costing $300 more upfront, it breaks even in 3.9 years and continues saving money thereafter.

Frequently Asked Questions

Do I need a gas line for a gas dryer?

Yes, gas dryers require a natural gas or propane hookup. If your laundry room doesn't have one, installation can cost $150-$500 depending on distance from your main gas line. This added cost should be factored into your total investment when comparing.

Are gas dryers faster than electric?

Yes, gas dryers typically dry 15-25% faster than electric models because gas burners heat up more quickly and reach higher temperatures. For large families doing many loads, this time savings can be significant and reduce overall energy consumption.

What about installation costs?

Gas dryers usually require professional installation ($100-$300) due to gas line connections and safety concerns. Electric dryers often only need a 240V outlet (usually already present) and can be installed DIY. Include installation costs in your break-even calculation.

Do gas dryers need ventilation?

Yes, both gas and electric dryers require proper outdoor ventilation to exhaust hot, moist air. Gas dryers produce combustion byproducts that must be vented outdoors. Never operate a gas dryer without proper venting—it's a safety hazard.

Which is more energy efficient?

Per load, electric dryers are slightly more energy efficient (~85% vs ~80% for gas), but natural gas costs less per unit of energy than electricity in most areas. The lower fuel cost typically makes gas dryers cheaper to operate despite being slightly less efficient.

How do utility rates affect the choice?

Utility rates vary widely by location. Use your actual rates from recent bills for accurate comparison. In areas with very cheap electricity or expensive natural gas (like some western states), electric dryers may be more economical. Always calculate based on local rates.

What about heat pump dryers?

Heat pump dryers are electric but use 40-50% less energy than conventional electric dryers. They cost more upfront ($1,000-$1,800) but can compete with or beat gas dryers on operating costs. Consider them as a third option if available in your market.

Do gas dryers last longer?

Both types typically last 10-13 years with proper maintenance. Gas dryers have slightly more complex mechanics (gas valve, igniter) that may need service, but both are generally reliable. Lifespan is more dependent on brand quality and usage than fuel type.

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