Pool Heaters & Heat Pumps
Pool Heaters - The Doheny's Difference
Article: How to Heat up a Swimming Pool
Video: How to Pick the Best Pool Heater for You
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Find the Perfect Pool Heater at the Best Price
Whether you're heating a small above ground backyard pool or a large inground setup, choosing the right type of pool heater starts with understanding your options. From fast-heating gas pool heaters that run on natural gas or propane to energy-efficient pool heat pumps that pull warmth from the surrounding air, each system offers distinct advantages. For the sun’s energy to warm your water.
At Doheny’s Pool Supplies, we carry a wide selection of the best pool heaters, heat pumps, and solar heaters from leading pool supply manufacturers and top-rated brands. Our inventory includes models known for energy efficiency, low maintenance, and long-term cost savings, helping you reduce energy bills while enjoying a perfectly heated pool. Not sure which option is right for you? Keep reading to learn more about the different types of pool heaters available.
Compare Pool Heater Options
| Type of Pool Heater | Best for | Heating Speed | Eco-Friendliness | Operating Cost | Installation Requirements | Average Lifespan |
|---|---|---|---|---|---|---|
| Gas Pool Heaters | Large pools, colder climates | Fast (1–3°F per hour) | Moderate (look for low NOx emissions) | Moderate | Natural gas line or propane tank. 120V electrical connection | 7–12 years |
| Pool Heat Pumps | Warm to sunbelt climates | Moderate | High | Low | 120V or 240V electrical connection | 10–20 years |
| Solar Pool Heaters | Sunny climates, long-term savings | Slow | Highest | Low | Solar panels & collectors, large installation space | 20+ years |
Gas Pool Heaters
Gas pool heaters are the most popular type of pool heater because they are the fastest way to heat pool water. A gas heater can raise the water temperature by 1–3 degrees Fahrenheit per hour, making it ideal for large pools and for use in colder climates where quick, consistent heating is essential. Unlike other types of swimming pool heaters, gas models perform well even when the outside air temperature is low.
To install a gas pool heater, you’ll need access to either a natural gas line or a propane tank, as well as a 120V connection. Many newer gas heaters are designed to be more efficient; look for models labeled with low NOx emissions for reduced environmental impact.
Pool Heat Pumps
Pool heat pumps are an energy-efficient alternative to traditional pool heaters. Rather than using a heat exchanger to generate heat, a heat pump pulls warmth from the surrounding air using a compressor and condenser system, making it one of the most eco-friendly pool heating options available.
Swimming pool heat pumps require either a 120V or a 240V electrical connection and are best suited for warm to sunbelt climates. While the initial cost of a pool heat pump is higher, the operating cost is significantly lower due to their high efficiency. These units are quiet, compact, and ideal for pool owners looking to maintain consistent water temperatures while keeping energy use low. However, pool heat pumps may struggle in colder conditions, specifically when air temperatures fall below 60°F.
Solar Pool Heaters
Solar pool heaters are the most sustainable way to heat your swimming pool, relying exclusively on solar energy. A solar pool heater system uses solar panels and collectors to absorb heat from the sun. Water is pumped from the pool into the solar collectors, where it’s warmed and then returned to the pool.
While solar heaters for pools are slower to increase water temperature compared to gas or electric options, they have minimal operating costs. They perform best in sunny, warm climates and are less effective at night or on cloudy days. Solar heating systems require substantial space to install.
Solar pool heaters typically last over 20 years. They rely on the pump and filtration system to push water through, requiring no additional cost and making them a smart, long-term investment for eco-conscious pool owners.
Above Ground Pool Heaters
Above ground pools need efficient, compact heating solutions. At Doheny’s, we carry top-rated above ground pool heaters, including gas, heat pump, and solar options, that are designed for smaller pools and easy installation. Whether you're extending your swim season or maintaining a comfortable water temperature, we’ve got the right heater for your above ground pool.
Shop Above Ground Pool Heaters →
Inground Pool Heaters
For larger pools, inground pool heaters offer the power and performance you need. Choose from high-BTU gas heaters for fast, consistent heating, energy-saving heat pumps, or eco-friendly solar heating systems. Our collection includes reliable models from trusted brands to help you maximize comfort and efficiency all season long.
Frequently Asked Questions about Pool Heaters
Is it worth putting a heater in a pool?
Heating a pool enhances the pool season and provides a much better swimming experience. Though there's an upfront cost, pool heaters are valuable for enjoying warmer water in cooler months, especially in regions with varying temperatures. A heated pool can increase home value, attracting potential buyers. While operating costs differ, the added convenience and extended use often justify the expense.
What type of pool heater is most efficient?
Choosing the best pool heater depends on climate, usage, and budget. Pool heat pumps are energy-efficient, using ambient air to heat water, ideal for warm to sunbelt climates. Though costly initially, they save long-term. Solar pool heaters are eco-friendly, using sun energy in tandem with your pool pump but depend on weather and space for panels. Both offer benefits, with heat pumps and solar heaters being optimal for cost savings and efficiency.
Do pool heaters work in winter?
Gas heaters work well in winter and are the best choice for cold climates. Heat pumps are less effective below 50–60°F. Solar heaters rely on sunlight and are not effective during cloudy or short winter days.
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