Pool Heater vs Heat Pump: Which Makes Sense in Georgia?
How to swim longer into fall and earlier in spring, and pick the right equipment to do it.
Gas pool heaters warm water fast no matter how cold it is outside, which makes them a good fit for occasional heating, cold-weather swimming and spas. Heat pumps heat more slowly but are far more energy efficient, and they work best when air temperatures are mild. In Georgia's climate, heat pumps are a popular way to extend the swim season through spring and fall, while gas heaters suit owners who want heat on demand or swim in colder months.
How a gas pool heater works
A gas heater burns natural gas or propane to heat water as it passes through the unit. Because it creates its own heat, it works well even on cold days and can raise water temperature quickly. That makes it a strong choice if you heat your pool or spa occasionally and want it warm fast.
How a heat pump works
A heat pump works like an air conditioner in reverse. It pulls heat from the surrounding air and transfers it into your pool water. Because it moves heat rather than creating it, it uses much less energy to run. The trade-off is speed, and it becomes less effective as air temperatures drop.
Side by side
| Gas heater | Heat pump | |
|---|---|---|
| Heating speed | Fast | Slower and steady |
| Works in cold weather | Yes, regardless of air temperature | Best in mild weather, less effective when it is cold |
| Running efficiency | Uses more energy to run | Very energy efficient to run |
| Best for | Occasional heating, spas, cold-weather swimming | Extending the season in spring and fall, regular use |
| Power source | Natural gas or propane | Electricity |
Not sure which is right for your pool? Stop by our Alpharetta store at 2900 Holcomb Bridge Rd and talk it through with our team. We will give you an honest recommendation based on how you actually use your pool.
Which one suits Georgia?
North Atlanta's spring and fall are mostly mild, which is exactly where heat pumps shine. If your goal is to open earlier and swim later each year, a heat pump is often the efficient choice. If you want to heat the pool for a weekend in December, use an attached spa often or want heat on demand, a gas heater makes more sense. Some owners with a pool and spa use both.
Things to consider before you upgrade
- •How and when you swim: occasional weekends versus regular daily use.
- •Your fuel options: whether you have natural gas available, or would need propane or electrical upgrades.
- •Space at your equipment pad: heat pumps need good airflow around them, and gas heaters need proper clearances and venting.
- •Pool size: the unit needs to be sized correctly to heat your volume of water in a reasonable time.
- •Using a pool cover: a cover holds in heat and makes either option work better.
Keeping your heater running
Most heater problems come down to water flow, a dirty filter or settings. Keeping your filter clean and your water balanced helps protect any heater. Read about free pool water testing to keep your chemistry where it should be.
Frequently asked questions
Want to swim longer this year?
Pool Supply Atlanta helps pool owners across Alpharetta, Roswell, Milton, Johns Creek and Sandy Springs choose the right heating option. Visit us at 2900 Holcomb Bridge Rd, Alpharetta, GA 30022 (Mon to Fri 9am to 5pm, Sat 9am to 4pm) or call 678-691-6124.
Planning a winter renovation too? See our Renovation page.
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