Choosing the best pool heat pump for your above ground pool involves balancing capacity, efficiency, ease of use, and budget. The GRAT 75,000 BTU inverter heat pump takes the top spot for its high capacity and smart features, making it ideal for larger pools up to 21,000 gallons. Meanwhile, the 7500 Gallons Above Ground Pool Heater offers a solid balance of power and affordability, suitable for pools up to 7,500 gallons. For smaller pools, the 5,500 Gallon Heat Pump provides reliable heating with WiFi control at a more accessible price point. The Della Omi Spark stands out for energy savings and quiet operation, perfect for those seeking year-round comfort, while the Swimming Pool Heater for Above Ground and Inground Pools adds flexibility with dual heating and cooling modes. Each option presents tradeoffs in capacity, installation complexity, and price, so understanding these differences helps ensure the best fit for your needs.
Get pool and patio gear delivered free — and shop member deals
- Fast, free delivery on millions of items
- Access to Prime Big Deal Days deals on October 6–7
- Prime Video, Amazon Music and more included
Complete the kit
Key Takeaways
- Capacity should match your pool size to ensure efficient heating without overpaying for excess power.
- Smart controls and WiFi connectivity enhance convenience but may add to the initial cost and setup complexity.
- Inverter technology significantly reduces energy consumption, especially for larger or year-round pools.
- Quiet operation is standard in higher-end models, improving backyard comfort during use.
- Installation requirements vary; some models are heavier or more complex, influencing setup choices.
| GRAT 75,000 BTU Full Inverter Pool Heat Pump with WiFi App Control |  | Best Overall for Large Above Ground Pools | BTU: 75,000 | Pool Capacity: Up to 21,000 gallons | Heating Range: 46°F–104°F | VIEW LATEST PRICE | See Our Full Breakdown |
| 7500 Gallons Above Ground Pool Heater 110V |  | Best Value for Medium-Sized Pools | Product Dimensions: 27 x 17 x 40 inches | Item Weight: 91.8 pounds | Warranty: 12 months | VIEW LATEST PRICE | See Our Full Breakdown |
| 5,500 Gallon Heat Pump Pool Heater for Above Ground Pool 110V |  | Best for Small Pools and Cost-Conscious Buyers | Pool Capacity: Up to 5,500 gallons | BTU: 16,000 | Voltage: 110V | VIEW LATEST PRICE | See Our Full Breakdown |
| Della Omi Spark 21,000 BTU Inverter Pool Heat Pump for up to 7,000 Gallons |  | Best for Energy Efficiency and Year-Round Comfort | BTU: 21,000 | Pool Capacity: Up to 7,000 gallons | Cooling/Heating: 47°F–104°F | VIEW LATEST PRICE | See Our Full Breakdown |
| Swimming Pool Heater for Above Ground and Inground Pool 12’x18’x48′ |  | Best for Versatility and Dual-Mode Climate Control | Pool Size Compatibility: 12’x18’x48′ | Temperature Range: 41–104°F (heating), 41–83°F (cooling) | COP: 5.5 | VIEW LATEST PRICE | See Our Full Breakdown |
| pool heat pump for above ground pool | Pool Capacity | BTU | Noise Level | Warranty |
|---|---|---|---|---|
| GRAT 75,000 BTU Full Inverter | Up to 21,000 gallons | 75,000 | 50 dB | — |
| 7500 Gallons Above Ground Pool | Up to 7,500 gallons | — | — | 12 months |
| 5,500 Gallon Heat Pump Pool He | Up to 5,500 gallons | 16,000 | — | — |
| Della Omi Spark 21,000 BTU Inv | Up to 7,000 gallons | 21,000 | 48 dB | 2-year parts, 10-year compressor |
| Swimming Pool Heater for Above | — | — | 38 dB | 3 years |
More Details on Our Top Picks
GRAT 75,000 BTU Full Inverter Pool Heat Pump with WiFi App Control
The GRAT 75,000 BTU inverter heat pump stands out for its impressive capacity and smart features. It’s designed for pools up to 21,000 gallons, making it ideal for larger above ground pools or those who want faster heating. Its inverter technology reduces power consumption significantly compared to traditional models, saving money over time. The corrosion-resistant titanium heat exchanger enhances durability, especially in saltwater pools. The WiFi and Bluetooth app control provide remote temperature adjustments, which is a major convenience. However, initial Bluetooth pairing can be tricky, and the WiFi connection is necessary for remote control—limiting usability in areas with weak signals. Compared to smaller models, this one offers the most power but at a higher price and slightly more complex setup.
Pros:- High capacity suitable for large pools
- Energy-efficient inverter technology
- Corrosion-resistant titanium heat exchanger
- Smart app control for remote adjustments
- Quiet operation at around 50 dB
Cons:- Bluetooth initial pairing required
- WiFi needed for remote control
- Performance may decline in extremely cold weather
Best for: Owners of larger above ground pools up to 21,000 gallons seeking smart, efficient heating.
Not ideal for: Buyers with smaller pools or those preferring simple, plug-and-play devices without app controls.
- BTU:75,000
- Pool Capacity:Up to 21,000 gallons
- Heating Range:46°F–104°F
- Cooling Range:45°F–82°F
- Noise Level:50 dB
- Housing Material:UV-resistant ABS
Our verdict“This model offers the best combination of high capacity, smart features, and durability for larger above ground pools, despite some setup complexity.”
7500 Gallons Above Ground Pool Heater 110V
The 7500 Gallons Above Ground Pool Heater offers a practical solution for pools up to 7,500 gallons. Its corrosion-proof titanium heat exchanger ensures longevity, and the inverter control provides rapid heating with low energy use. This model excels for its ease of installation and remote operation via an app or touch panel, making it suitable for homeowners who want quick setup and simple control. Its weight of nearly 92 pounds may require assistance during installation, and it’s limited to above ground pools only. While it’s efficient and quiet, the device’s performance in extremely cold weather could be less reliable, and it’s less suited for larger pools or those seeking advanced smart features.
Pros:- Efficient heating for medium-sized pools
- Corrosion-proof titanium heat exchanger
- Quiet operation below 50 dB
- Remote control via app or touch panel
- Easy to install
Cons:- Heavy weight may complicate setup
- Limited to above ground pools
- Performance may decrease in very cold weather
Best for: Pool owners with up to 7,500 gallons seeking a reliable, energy-efficient heater at a reasonable price.
Not ideal for: Buyers with larger pools or those needing advanced features like WiFi control for multiple devices.
- Product Dimensions:27 x 17 x 40 inches
- Item Weight:91.8 pounds
- Warranty:12 months
- Pool Capacity:Up to 7,500 gallons
- Heat Exchanger:Titanium
- Control:Mobile app and touch panel
Our verdict“A reliable, cost-effective choice for medium pools that values simplicity and efficiency, with some limitations in cold climates.”
5,500 Gallon Heat Pump Pool Heater for Above Ground Pool 110V
The 5,500 Gallon Heat Pump is tailored for smaller pools up to 5,500 gallons, providing 16,000 BTU of heating and cooling. Its high COP of 4.3 ensures energy savings, and WiFi control makes remote adjustments straightforward. The device operates quietly at 50 dB, making it suitable for backyard use. Its compact size simplifies installation, but it requires proper setup and compatible pump systems to work efficiently. This heater is ideal for owners who want reliable climate control without overspending, though it’s not suitable for larger pools or those needing more aggressive heating power.
Pros:- Powerful heating and cooling for small pools
- WiFi-enabled remote control
- High energy efficiency with COP 4.3
- Quiet operation at 50 dB
Cons:- Requires proper installation
- Limited capacity for larger pools
- Normal condensation during operation
Best for: Small above ground pools up to 5,500 gallons seeking efficient, remote-controlled heating and cooling.
Not ideal for: Larger pools or users seeking a higher BTU capacity for quick heating.
- Pool Capacity:Up to 5,500 gallons
- BTU:16,000
- Voltage:110V
- COP:4.3
- Sound Level:50 dB
- Water Connection:DN32–38 mm
Our verdict“A compact, efficient option perfect for small pools or budget-conscious owners who value remote control and quiet operation.”
Della Omi Spark 21,000 BTU Inverter Pool Heat Pump for up to 7,000 Gallons
The Della Omi Spark 21,000 BTU inverter heat pump caters to pools up to 7,000 gallons, offering both heating and cooling. Its inverter technology reduces energy consumption by adjusting to your pool’s needs, achieving savings of up to 80%. The quiet operation at 48 dB and compatibility with smart home devices like Alexa and Google Home make it attractive for tech-savvy owners. Its higher upfront cost is offset by long-term savings, but it requires a clear space for optimal airflow, and its price may be prohibitive for budget buyers. This model excels for those seeking efficiency, longevity, and minimal noise.
Pros:- Significant energy savings with inverter tech
- WiFi control compatible with smart home devices
- Quiet operation at 48 dB
- Suitable for various pool types
- Long warranty coverage
Cons:- Higher initial cost
- Requires space for airflow
- Complex setup for some users
Best for: Owners of medium-sized pools who prioritize energy savings, smart controls, and quiet operation.
Not ideal for: Large pools over 7,000 gallons or owners on a strict budget needing lower-cost options.
- BTU:21,000
- Pool Capacity:Up to 7,000 gallons
- Cooling/Heating:47°F–104°F
- COP:4.02 at 50°F, 4.97 at 80.6°F
- Noise Level:48 dB
- Warranty:2-year parts, 10-year compressor
Our verdict“A premium choice that emphasizes energy efficiency and smart features, ideal for owners looking to reduce operating costs long-term.”
Swimming Pool Heater for Above Ground and Inground Pool 12’x18’x48′
This heater offers versatile operation with both heating and cooling modes, suitable for pools up to roughly 12’x18’x48′. Its energy efficiency of 5.5 COP allows for reduced operational costs, and the quiet 38 dB operation makes it suitable for peaceful backyard environments. Its comprehensive package includes adapters and conversion kits for easy installation, making it a flexible choice for owners with different pool types or those seeking year-round use. However, it’s primarily designed for above ground pools, and some technical setup is required for optimal performance. It provides a balanced mix of features for owners who want more control over their pool climate.
Pros:- Dual-mode heating and cooling
- High energy efficiency at 5.5 COP
- Very quiet operation
- Includes installation adapters
- Suitable for year-round use
Cons:- Designed mainly for above ground pools
- Requires some technical setup
- Performance depends on proper installation
Best for: Owners of above ground pools who want flexible heating and cooling with good energy efficiency.
Not ideal for: Very large pools or inground pools requiring larger capacity units.
- Pool Size Compatibility:12’x18’x48′
- Temperature Range:41–104°F (heating), 41–83°F (cooling)
- COP:5.5
- Noise Level:38 dB
- Warranty:3 years
Our verdict“A flexible, efficient heater that extends pool usability beyond summer, best suited for smaller or medium pools with an interest in climate control.”
How We Picked
Our selection process prioritized capacity, energy efficiency, ease of control, and durability. We focused on models designed specifically for above ground pools, with features like inverter technology for savings, WiFi app control for convenience, and corrosion-resistant components for longevity. We compared user feedback, technical specs, and price points to identify options suitable for different pool sizes and budgets. Tradeoffs like installation complexity and upfront costs were also considered, ensuring each product offers a clear advantage for specific buyer needs.
| pool heat pump for above ground pool | Pool Capacity |
|---|---|
| GRAT 75,000 BTU Full Inverter | Up to 21,000 gallons |
| 7500 Gallons Above Ground Pool | Up to 7,500 gallons |
| 5,500 Gallon Heat Pump Pool He | Up to 5,500 gallons |
| Della Omi Spark 21,000 BTU Inv | Up to 7,000 gallons |
| Swimming Pool Heater for Above | — |
Factors to Consider When Choosing Best Pool Heat Pump For Above Ground Pool
Selecting the best pool heat pump for your above ground pool hinges on understanding capacity, energy efficiency, smart features, and installation needs. Size your pool correctly to avoid over- or under-heating. Energy-efficient inverter technology can save significant costs, especially if you plan to run the heater frequently or year-round. Smart controls enhance convenience but may come with higher upfront costs. Consider your climate; in colder areas, higher heating capacity and weather-resistant features matter. Ease of installation varies—some models are heavy or complex, affecting setup time and effort. Balancing these factors against your budget ensures a satisfying purchase that keeps your pool comfortable and efficient throughout the season.
Pool Size and Capacity
Matching your pool’s volume with the heater’s capacity is the most critical step. Larger pools need higher BTU ratings to heat efficiently without overworking the unit, while smaller pools can be effectively heated with lower capacity models. Oversizing can lead to unnecessary energy consumption, and undersizing results in inadequate heating. For most above ground pools, select a heater rated for at least 50% of your pool’s gallons to ensure quick, consistent temperature control.
Energy Efficiency and Smart Controls
Inverter technology plays a key role in reducing energy costs by adjusting power use based on heating demand. Models with WiFi or app control offer remote management, adding convenience, especially if you want to adjust settings from inside your home or when away. Keep in mind that smart features often come with higher initial prices but can pay off over time through savings. If you value ease of use and long-term savings, prioritize these features but be prepared for potential setup complexity.
Durability and Weather Resistance
Look for models with corrosion-resistant components, like titanium heat exchangers, especially if your pool is saltwater or exposed to harsh weather. Noise level is another factor—quiet operation at around 50 dB or lower makes your backyard more enjoyable. Consider whether the unit’s size and airflow requirements fit your space; some models need proper ventilation or clear space for optimal performance. These factors influence both longevity and ease of installation.
Installation and Maintenance
Heaters vary in weight and complexity. Heavier units may require assistance, and some models need professional installation to ensure proper setup. Check for included adapters and maintenance features like easy access panels and self-diagnostics. A model with a good warranty and accessible customer support can reduce long-term worries, especially if you’re new to pool equipment. Proper installation and regular maintenance extend the lifespan and ensure consistent performance.
Frequently Asked Questions
How do I determine the right size pool heater for my above ground pool?
To select the correct size, calculate your pool’s gallons and choose a heater rated for at least 50% of that volume. For example, a 5,000-gallon pool should have a heater with at least 2,500 BTUs, but most above ground pool heaters in the 16,000–21,000 BTU range are suitable for pools up to 7,000 gallons. Oversizing can lead to unnecessary energy use, while undersizing results in slow heating and temperature inconsistencies. Always match your pool size with the heater’s capacity for optimal performance.
What are the benefits of inverter technology in pool heat pumps?
Inverter technology adjusts the compressor’s speed in real-time, providing precise temperature control while reducing energy consumption. This results in lower operating costs and faster heating times compared to traditional fixed-speed units. It also minimizes noise and extends the lifespan of the compressor. For owners planning to run their heater frequently or year-round, inverter models offer significant savings and quieter operation, making them a smart investment despite a higher upfront cost.
Are WiFi-controlled pool heat pumps worth the extra cost?
WiFi control adds a level of convenience, allowing you to adjust your pool’s temperature remotely via a smartphone app. This feature is especially useful if you want to preheat your pool before arriving home or monitor operation from afar. While it does increase the initial purchase price, the convenience and potential energy savings through precise control may offset this cost over time. However, ensure your WiFi connection is reliable, as connectivity issues can limit functionality.
How does climate affect pool heater performance?
Your local climate influences how well a pool heater performs. Colder environments require higher BTU ratings or models with better defrost technology to maintain desired temperatures. In freezing conditions, units with automatic defrost features prevent ice buildup and damage. For warmer climates, standard models are usually sufficient, but always consider the lowest winter temperatures in your region to choose a heater that can operate reliably year-round.
What maintenance is required for pool heat pumps?
Routine maintenance includes inspecting and cleaning air filters, checking for debris around the unit, and ensuring proper airflow. Some models have self-diagnostic features to alert you of issues early. It’s also beneficial to winterize the unit if you live in a cold climate, following the manufacturer’s instructions to prevent damage during freezing temperatures. Regular checks help prolong the lifespan of your heat pump and maintain efficient operation.
Conclusion
For owners with larger pools or those prioritizing smart features and energy efficiency, the GRAT 75,000 BTU inverter heat pump offers robust performance and remote control capabilities. Budget-conscious buyers or those with smaller pools should consider the 7500 Gallons Above Ground Pool Heater for its balance of power and simplicity. The 5,500 Gallon Heat Pump suits small pool owners who want reliable climate control without extra frills. Energy-savvy consumers seeking year-round comfort and minimal noise will find the Della Omi Spark appealing, while versatile users wanting dual heating and cooling modes will appreciate the Swimming Pool Heater for Above Ground and Inground Pools. Each option aligns with different needs, ensuring you find the best fit for your pool and lifestyle.
Fall Picks
fall essentials
As an affiliate, we earn on qualifying purchases.
