Electric Furnace vs Gas Furnace in Texas: Which Saves More?

Updated 2026-03-27 · DFW Air Cost

Electric Furnace vs Gas Furnace in Texas: Which Saves More?

Most DFW homeowners think about cooling when they think about HVAC. But Texas winters, while mild, still require heating. And choosing between electric and gas heating is surprisingly relevant—especially with heat pump technology changing the game.

This guide covers the real economics of electric vs gas furnaces for North Texas homes.

The Reality Check: Texas Heating Needs

First, let's be honest: heating is not your biggest HVAC expense in Texas.

In Dallas-Fort Worth:

AC costs: 70-80% of annual heating/cooling expenses
Heat costs: 20-30% of annual heating/cooling expenses

A typical DFW home might spend:

Cooling (June-September): $800-1,200/season
Heating (November-February): $200-400/season

So your furnace choice matters less than your AC choice. But it still matters.

Electric Furnaces: How They Work

An electric furnace uses electric resistance heating. Think of it like a giant hair dryer—electricity passes through heating elements and warms air.

How it works:

Thermostat calls for heat
Furnace fan turns on
Electricity flows through heating elements (resistance coils)
Elements glow hot (like toaster coils)
Air passes over elements and heats
Warm air goes through ducts to home

Efficiency: Almost 100% (electrical energy converts directly to heat, minimal loss)

Cost in DFW: $1,500-$3,500 for furnace + installation

Gas Furnaces: How They Work

A gas furnace burns natural gas to produce heat.

How it works:

Thermostat calls for heat
Furnace ignites natural gas burner
Combustion occurs in heat exchanger
Warm air passes through heat exchanger
Warm air travels through ducts to home
Exhaust gases vent out through chimney/vent

Efficiency: 80-95% (depends on model; high-efficiency units are 90-95%, older units 80%)

Cost in DFW: $2,000-$5,000 for furnace + installation (varies by efficiency)

Operating Costs: Electric vs Gas in Texas

Here's where the real decision happens—your heating bills.

Assumptions for DFW home:

2,500 sq ft
Heating need: 40,000 BTU/hour on coldest days
130 heating days per year (Oct 15-Mar 31)
Current utility rates (March 2026)

Gas Furnace Operating Cost

Gas rates in DFW: $0.90-$1.15 per therm (varies by provider, season)

Using $1.00/therm average.

Heating need calculation:

40,000 BTU/hour ÷ 100,000 BTU per therm = 0.4 therms/hour
If furnace runs 3 hours/day average (Dec-Feb peak, less in shoulder months)
0.4 × 3 = 1.2 therms/day
1.2 × 130 days = 156 therms/season
156 therms × $1.00 = $156 heating cost

Plus:

Monthly service charge: $15 × 6 months = $90
Annual maintenance: $150-$200

Total annual gas heating: $396-$446

Electric Furnace Operating Cost

Electricity rates in DFW: $0.12-$0.15/kWh average

Using $0.13/kWh.

Heating need calculation:

40,000 BTU/hour = 11.7 kW (1 kW = 3,412 BTU/hour)
If furnace runs 3 hours/day average
11.7 × 3 = 35.1 kWh/day
35.1 × 130 days = 4,563 kWh/season
4,563 kWh × $0.13 = $593 heating cost

Plus:

No monthly gas service charge
Minimal maintenance

Total annual electric heating: $593

The Difference

Gas furnace: $396-$446/year

Electric furnace: $593/year

Annual difference: Electric costs about $150-$200/year MORE.

Over 20 years (typical furnace lifespan), that's $3,000-$4,000 in extra heating costs with electric.

But wait—there's more to the story.

Installation and Maintenance Costs

Gas Furnace

Installation: $2,500-$4,500 (more complex, requires venting, gas line)
Maintenance: Annual service needed, $150-$250/year
Repairs: More complex, potentially expensive parts
Lifespan: 15-20 years

Electric Furnace

Installation: $1,500-$3,000 (simpler, no venting required)
Maintenance: Minimal, filter changes only
Repairs: Simpler, usually less expensive
Lifespan: 15-20 years

Installation difference: Gas costs $1,000-$1,500 more upfront.

Maintenance over 20 years:

Gas: 20 × $200 = $4,000
Electric: 20 × $50 = $1,000
Difference: $3,000 more for gas

Total cost of ownership (20 years):

Gas: $4,000 (installation) + $3,000 (maintenance) + $8,000 (operating) = $15,000
Electric: $2,000 (installation) + $1,000 (maintenance) + $11,860 (operating) = $14,860

They're surprisingly close. Electric wins slightly on total ownership cost, despite higher operating expenses.

The Texas Climate Consideration

Texas heating is sporadic. Your furnace might run 3-5 months per year, and even then, only a few hours per day.

This changes the economics.

If you lived in Ohio where heating runs 6-7 months per year, gas would clearly win. But in Texas, the heating season is short.

A second consideration: Texas doesn't have extreme cold. Your furnace rarely needs to run at full capacity. Mild heating days (45-55 degrees) don't strain either system.

Heat Pump Alternative: The Game-Changer

Here's what you need to know: most new HVAC systems in Texas combine:

Heat pump AC unit: Provides summer cooling AND winter heating
Auxiliary electric heating: Kicks in if heat pump can't keep up (rare in Texas)

A modern heat pump is more efficient than both gas and electric furnaces at heating in moderate temperatures.

Heat pump heating costs in DFW:

Most heating happens at very efficient 15-18 SEER
Estimated cost: $300-$400/year
Much cheaper than gas ($400) or electric ($600)

Over 20 years, a heat pump saves $4,000-$6,000 compared to gas furnace.

This is why modern air conditioning systems in Texas increasingly include heat pump capability—it's just cheaper overall.

When to Choose Electric Furnace

Choose electric if:

Your home has no natural gas line (adding gas line is expensive)
You want simplicity and minimal maintenance
You're replacing a failed electric furnace
You don't want annual service appointments
Installation ease is a priority (no venting required)

DFW example: New home in Celina built on propane (no natural gas line). Adding gas line would cost $3,000+. Electric furnace makes sense.

When to Choose Gas Furnace

Choose gas if:

You already have natural gas service
You want lowest operating costs (if heating is significant)
You prefer traditional proven technology
You're combining with AC (not heat pump)
Your home is in older part of DFW with established gas infrastructure

DFW example: 1980s home in Richardson already on natural gas. Replacing gas furnace with gas furnace saves $1,000+ compared to converting to electric.

When to Choose Heat Pump (The Modern Option)

Choose heat pump if:

You're replacing your entire AC system
You want a single system for both cooling and heating
You want the most efficient heating in mild climates
You value modern technology

Heat pumps are increasingly the standard for new homes and replacements in Texas.

Real DFW Examples

Frisco, TX - New Home, No Gas Line

"Built in 2023 on propane. Contractor quoted $2,500 to add gas line or install electric furnace for $1,800. We chose electric. Heating costs $50-60/month in winter. It works."

Plano, TX - Replacing Old Gas Furnace

"Our 1998 gas furnace failed. Replacement with new 95% efficient gas furnace: $4,200 installed. Electric would've been $2,800. We stayed with gas because we're already on the system."

McKinney, TX - New AC System Install

"When replacing whole system, contractor recommended heat pump instead of furnace + AC. Total cost similar, but heating efficiency was 30% better. Switched to heat pump."

Richardson, TX - Rental Property Owner

"Have multiple rentals. Some electric, some gas furnaces. Gas is marginally cheaper to operate but requires annual maintenance I have to pay for. Electric costs more to run but lower headaches."

Allen, TX - Climate Consideration

"Live in North Texas and rarely use heat. Electric furnace cost $1,500 less to install. Heating bill is $100/month during winter peak. Totally fine with it."

The Complete HVAC System Choice

Remember: furnace selection is just one part of your heating/cooling system.

Modern approach (most recommended):

Heat pump AC unit (cools in summer, heats efficiently in mild winter)
No separate furnace needed
Cost: $10,000-$15,000 for whole system
Efficiency: Best overall

Traditional approach:

Separate AC unit + gas furnace
Cost: $11,000-$16,000
Efficiency: Good for cooling, adequate for heating

Budget approach:

Separate AC unit + electric furnace
Cost: $9,500-$13,000
Efficiency: Good for cooling, adequate heating

For most DFW homeowners buying now, heat pump systems make the most sense. You get efficient cooling (your primary need) and efficient heating (your secondary need) in one system.

Bottom Line

In Texas, the electric vs gas furnace debate is less critical than your AC choice because heating doesn't drive your annual costs.

Electric furnace: Lower upfront cost, higher operating cost, minimal maintenance

Gas furnace: Higher upfront cost, lower operating cost, annual maintenance required

Heat pump: Newest approach, efficient for both heating and cooling, increasingly standard

For most DFW homeowners today, a heat pump system makes the most financial and practical sense. You get reliable cooling (essential) and efficient heating (useful but secondary) in one modern system.

If you're forced to choose between electric and gas furnaces specifically, gas usually wins on operating cost but electric wins on simplicity. The difference is small enough that other factors (existing gas line, installation complexity, personal preference) can be tie-breakers.

When you're ready to replace your HVAC system, discuss heating options with contractors. Use dfwaircost.com's calculator to compare complete system pricing for your DFW area, including different heating approaches.

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