Dual Fuel Heat Pump Systems

A dual fuel system, sometimes called a hybrid heat pump, pairs an electric heat pump outdoors with a gas furnace indoors. In summer the heat pump works like a regular air conditioner. In winter it heats your home on mild and cool days, and when the temperature drops far enough the system hands off to the gas furnace. One thermostat decides which one runs.

For Austin homes that already have gas, dual fuel is often the middle path between a traditional AC and furnace and an all-electric heat pump. Gold Eagle Services, a family-run Austin HVAC company since 2017 (TACLA119235), designs and installs dual fuel systems sized for Central Texas homes.

Want to see how it compares for your home? Build your system online, choose a dual fuel setup, and see an estimate in a few minutes.

A heat pump moves heat instead of making it, so on most Central Texas winter days it heats your home with less energy than burning gas or running electric heat strips. As it gets colder outside, a heat pump’s capacity drops while your home loses heat faster. At some point the gas furnace becomes the better choice.

That handoff is called the switchover or balance point. We set it in the thermostat or control during installation based on your equipment, your home and your utility rates. During a defrost cycle the furnace can also provide the heat, so you avoid cool air blowing from the vents.

The practical result: efficient heat pump heating most of the winter, hot gas heat during a hard freeze, and no need for large electric heat strips. Read Can a Heat Pump Keep Up With a Texas Freeze? and Heat Pumps vs. Electric Resistance Heat to see why that matters in Austin.

Dual fuel tends to make the most sense when:

• Your home already has a natural gas line to the furnace
• Your air conditioner and furnace are both getting older
• You want hot air from the vents on the coldest nights
• You would rather not rely on electric heat strips during a freeze
• You want heat pump efficiency without giving up gas entirely

It may not be the best fit if your home is all-electric (a heat pump with heat strips is simpler), or if your furnace is newer and only the AC needs replacing. In that case we can often add a heat pump to the existing furnace. For a broader overview, see The Different Types of HVAC Systems Explained.

The main things that drive the cost of a dual fuel installation are:

• Heat pump and furnace size, based on your home’s load calculation
• Efficiency tiers and single-stage, two-stage or variable-speed equipment
• Whether the existing furnace can stay or needs replacing
• Thermostat and control compatibility
• Electrical, gas venting and condensate work
• Duct repairs or modifications
• Permits and inspections

Wondering what a new system would cost? Build your system online. Pick your equipment and options, and see pricing for your home in a few minutes.

For a starting point, build your system online and see an estimate for the setup you choose. Or call for a quote at 512-489-4653 or schedule online. Review our financing options and current Austin rebates, and read our 2026 guide to Austin Energy rebates.

Want to understand your options before you call? Our homeowner guides on heat pumps, furnaces and home heating are written by our team for Central Texas homes.

• Can a Heat Pump Keep Up With a Texas Freeze?
• Heat Pumps vs. Electric Resistance Heat for Central Texas Homes
• The Different Types of HVAC Systems Explained
• Austin Energy Rebates and Tax Credits for HVAC Upgrades (2026 Guide)

Browse all homeowner guides in the Gold Eagle Resource Center