Heat pump vs Furnace in Gwinnett County, Georgia
When a heat pump makes sense
If you already have gas at the house or you're deciding between the two, the heat pump is the cheaper one to run here, about 15% less than gas at Georgia prices. Winter nights average 34°F in Gwinnett County, which is cold enough for a standard heat pump to lose some of its output, so look at a cold-climate model if you want full heating power on the coldest nights. It also cools your home in summer, so you are not running two separate systems.
When a furnace makes sense
A furnace makes sense if you want a system built only for heat and are not concerned with what it costs to run against a heat pump. It keeps its full output no matter how cold the night gets, since it burns gas rather than pulling heat from the outside air. You will still need a separate system for cooling.
When a heat pump makes sense
If you already have gas at the house or you're deciding between the two, the heat pump is the cheaper one to run here, about 15% less than gas at Georgia prices. Winter nights average 34°F in Gwinnett County, which is cold enough for a standard heat pump to lose some of its output, so look at a cold-climate model if you want full heating power on the coldest nights. It also cools your home in summer, so you are not running two separate systems.
When a furnace makes sense
A furnace makes sense if you want a system built only for heat and are not concerned with what it costs to run against a heat pump. It keeps its full output no matter how cold the night gets, since it burns gas rather than pulling heat from the outside air. You will still need a separate system for cooling.
Heat pump
- Runs on
- Electricity
- What it does
- Heats and cools
- Tax credit
- No federal tax credit since the end of 2025
Sources: U.S. Department of Energy · Internal Revenue Code
Furnace
- Runs on
- Natural gas
- What it does
- Heats only
- Tax credit
- No federal tax credit since the end of 2025
Sources: U.S. Department of Energy · Internal Revenue Code
Heat pump wins in Gwinnett County.
Winters here rarely get brutal, so a heat pump keeps up fine and costs about 15% less to run than gas.
If your home already has a gas line and a furnace that's still in good shape, keeping it can make more sense than switching over.
Find a contractor| Compared on | Heat pump | Furnace |
|---|---|---|
| Cost to run here | About 15% less to run | Costs more to run |
| What it does | Heats and cools | Heats only |
| Homes in the South Atlantic states that heat with one | 30.1% | 48% |
| Handles a 34°F night | Standard models lose heating power in the cold; cold-climate models are built for it | Yes |
Sources: U.S. Energy Information Administration, U.S. Department of Energy, NOAA
When a heat pump makes sense
If you already have gas at the house or you're deciding between the two, the heat pump is the cheaper one to run here, about 15% less than gas at Georgia prices. Winter nights average 34°F in Gwinnett County, which is cold enough for a standard heat pump to lose some of its output, so look at a cold-climate model if you want full heating power on the coldest nights. It also cools your home in summer, so you are not running two separate systems.
When a furnace makes sense
A furnace makes sense if you want a system built only for heat and are not concerned with what it costs to run against a heat pump. It keeps its full output no matter how cold the night gets, since it burns gas rather than pulling heat from the outside air. You will still need a separate system for cooling.
A Gwinnett County contractor will price both against your own house, your ductwork and your panel.
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