Heat Pump vs Gas Furnace in Texas: The Right Choice for DFW Homes
You’re replacing a complete HVAC system in Dallas. Two roads in front of you: gas furnace + AC condenser, or all-electric heat pump. They cost similar to install but the operating costs over 10 years can vary by thousands of dollars. Here’s how to make the right choice for your specific home.
The Quick Answer
If your house has a natural gas line: get a gas furnace. Natural gas in DFW is cheap. Heating with a gas furnace costs significantly less than running a 20-amp compressor on a heat pump for the same BTU output.
If you don’t have a gas line — or don’t want one: get a heat pump. All-electric, single outdoor unit handles both heating and cooling, no gas plumbing required.
That’s the 80% answer. Read on for the nuance.
How Heat Pumps Actually Work
A heat pump is a single outdoor unit that handles both heating and cooling. In summer it pulls heat out of your house (just like an AC). In winter it reverses, pulling heat from outdoor air and pumping it inside.
Sounds magical — and below ~30°F it gets less efficient. At 15°F (rare in DFW but happens), the heat pump can’t keep up alone, and electric resistance “heat strips” inside the air handler kick on. Heat strips work like a giant toaster — effective but expensive to run.
Operating Cost in DFW (The Real Numbers)
Atmos Energy charges around $1.10 per ccf for residential natural gas in 2026. Oncor / TXU electricity averages around $0.13 per kWh.
For a typical 3-ton system heating a 2,000 sq ft Dallas home:
Gas furnace: Approximately $1.50/hour to run during cold weather (consuming ~1.5 ccf/hour for a 90,000 BTU output).
Heat pump above 32°F: Approximately $1.20/hour (drawing about 9 kW for similar BTU output, but pump efficiency makes it competitive).
Heat pump below 32°F (heat strip activated): Approximately $2.40/hour as the resistance heat takes over.
Net result over a typical DFW winter (mild with a few cold snaps): gas furnace operating costs run roughly 25–40% less than heat pump for the same heating output.
When Heat Pumps Win
No existing gas service. Adding a gas line, plumber, flue, and city permit can run $2,000–$5,000. Heat pump skips all that.
All-electric subdivisions. Some newer Frisco/Plano developments are deed-restricted to all-electric. Heat pump is your only option.
Solar-equipped homes. If you generate electricity from your roof, every kWh you produce offsets heat pump operating cost. Net-metered solar can make a heat pump nearly free to run in winter.
Replacing a heat pump. If your existing system is already a heat pump and your house has no gas plumbing, switching to gas means major retrofit work.
When Gas Furnaces Win
You have a gas line at your house. This is most DFW homes built since the 1970s. Gas line, flue, and ductwork already sized for it.
You want fast warm-up on cold mornings. Gas burner reaches temperature in under a minute. Heat pump takes 10–15 minutes to ramp up.
You want lower operating cost. Cheaper natural gas in DFW + lower kWh draw on the blower = significantly lower winter bills.
You want generator-friendly. During an Oncor outage in a winter storm, a small portable generator (5,000W) can keep your gas furnace blower running. A heat pump compressor draws much more — you’d need a 10,000W+ generator.
Equipment Cost (Roughly Equal)
Looking at our Rheem complete system pricing:
- 3-ton gas system: $3,448 pre-tax
- 3-ton heat pump system: $3,884 pre-tax
The heat pump runs about $400–$500 more upfront because the outdoor unit has reversing valve hardware. Marginal cost difference.
Our Recommendation Logic
- Do you have a gas line? → Gas furnace.
- No gas line, do you have solar? → Heat pump (the operating cost difference goes away).
- No gas line, no solar? → Heat pump (it’s still your best option).
- Building new and undecided? → Get the gas line installed during construction; gives you flexibility plus the lower operating cost.
Walk in or call (214) 340-9421. Bring photos of your existing setup and we’ll size and quote either configuration on the spot.
