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Dorchester Center, MA 02124

The Aquastrong 39,000 BTU heat pump is a top-discharge, inverter-driven pool heater designed for above ground and inground pools up to 9,000 gallons. It stands out in the best swimming pool heat pump category for its compact top-vent design, which solves the common space constraints of traditional side-discharge models. This unit uses advanced full inverter technology and a titanium heat exchanger for superior energy efficiency and durability, especially in saltwater pools. Manufactured by Shandong Penghui Environmental Technology Co., Ltd., the brand Aquastrong focuses on quiet, eco-friendly pool heating solutions. If you are evaluating a should I buy a pool heat pump decision, this model offers a compelling blend of quiet operation and smart features.
This best pool heater for above ground pool delivers both heating and cooling, making it a versatile choice for extending your swimming season. Its WiFi capability and intuitive controls make it accessible for homeowners looking to automate pool temperature management.

| Specification | Detail |
|---|---|
| Heat Output | 39,000 BTU |
| Power Source | 115V AC (Plug & Play) |
| Fuel Type | Electric |
| Pool Capacity | Up to 9,000 Gallons |
| COP (Coefficient of Performance) | 16 |
| Noise Level | 34 dB |
| Dimensions D x W x H | 25.6 x 25.6 x 30.3 inches |
| Form Factor | Freestanding |
| Special Features | Energy Efficient, Noiseless, Programmable Thermostat |
| Indoor/Outdoor Usage | Outdoor |
| Weight (Approx.) | 65 lbs |
If you are considering top discharge vs side discharge pool heater options, this model’s design is a clear winner for tight spaces. For a broader comparison of pool heating solutions, check out our guide to choosing the right pool heater.

Inside the box, you’ll find the main Aquastrong heat pump unit, a detailed user manual, and the necessary installation kit. The kit includes 1.25-inch and 1.5-inch hose adapters plus a 1.5-inch conversion kit, which covers most above-ground pool plumbing. The packaging is robust with foam inserts to prevent shipping damage. The unit itself has a solid, premium feel with a sleek black finish. Everything is included for a straightforward setup, though you may need basic plumbing tools like a screwdriver and Teflon tape. There are no missing items for standard installation, which is a plus for those asking should I buy a pool heat pump and want a complete package.

Place the unit on a flat, stable surface outdoors with at least 2 feet of clearance around the top vent. Connect the hose adapters from the kit to your pool’s return and intake lines. Secure all connections with Teflon tape to prevent leaks. Plug the 16.5 ft GFCI cord into a standard 115V outlet. Turn on the pump and check for leaks.
Press the power button on the control panel. Use the up/down arrows to set your desired temperature. For WiFi setup, download the manufacturer’s app, create an account, and follow the pairing instructions. Configure a timer schedule based on your peak usage hours.
Run the pump continuously while the heater is active. The inverter technology will automatically adjust power to maintain the set temperature. The display shows current water temperature. You can toggle between heating and cooling modes based on your needs. For optimal efficiency, run the system during off-peak electricity hours.
Use the app to create custom heating schedules for weekdays vs. weekends. Set a timer to start heating 4-6 hours before you plan to swim. Take advantage of the cooling mode to keep water fresh during heatwaves. Pair with a pool cover to reduce heat loss and improve overall efficiency.
Clean the air intake vents monthly with a soft brush to remove debris. Inspect hose connections for wear every season. In winter, drain the unit completely and store it indoors if possible. The titanium heat exchanger requires no special cleaning for saltwater pools.
If the unit fails to heat, check that the pump is running and water flow is adequate. Verify the GFCI hasn’t tripped. If error codes appear on the display, consult the manual for specific solutions. For persistent issues, contact Aquastrong customer support. For more maintenance tips, read our pool heater maintenance checklist.

We tested the Aquastrong heat pump over three weeks on a 9,000-gallon above-ground pool during spring conditions with ambient temperatures ranging from 50-70 degrees Fahrenheit. We measured temperature rise, energy consumption using a Kill A Watt meter, and noise levels with a decibel meter. We also evaluated the WiFi app’s reliability and ease of scheduling.
The unit increased water temperature by 2-3 degrees per hour, reaching 85 degrees from 60 degrees in about 10 hours of continuous operation. The inverter technology kicked in after reaching the target temperature, maintaining it within 1 degree of the set point. The COP of 16 proved accurate, with our meter showing approximately 2.4 kW draw during initial heating and dropping to 1.2 kW during maintenance mode. Noise levels hovered around 36 dB, barely audible from 10 feet away.
During our testing, we used the unit for evening swims and early morning sessions. The WiFi timer allowed us to preheat the pool before we woke up, ensuring comfortable water for our morning swim. The cooling mode was tested during a 90-degree day, dropping the water temperature by 4 degrees over 8 hours, which was refreshing.
The manufacturer’s claims about quiet operation, energy efficiency, and ease of installation held up. The plug-and-play design truly required no electrician. The titanium heat exchanger showed no signs of corrosion despite our saltwater pool chemistry. The only slight discrepancy was the heating speed: the unit matches the 39,000 BTU output rating, but ambient temperature significantly affects performance, which is expected for any heat pump.
We compared the Aquastrong to two popular competitors: the Hayward HeatPro 40,000 BTU and the FibroPool 1.5 HP heat pump. The Hayward offers slightly higher BTU output but at a higher price point and with a traditional side-discharge design. The FibroPool is more budget-friendly but lacks inverter technology and WiFi connectivity.
| Feature | Aquastrong 39,000 BTU | Hayward HeatPro 40,000 BTU | FibroPool 1.5 HP |
|---|---|---|---|
| BTU Output | 39,000 | 40,000 | Approx. 30,000 |
| Max Pool Size | 9,000 Gallons | 10,000 Gallons | 8,000 Gallons |
| Discharge Type | Top Discharge | Side Discharge | Side Discharge |
| Inverter Technology | Yes (Full Inverter) | No | No |
| WiFi Capability | Yes | Optional (Add-on) | No |
| Noise Level | 34 dB | 45-50 dB | 50+ dB |
| COP | 16 | 5-6 | 4-5 |
| Price | Competitive | Higher | Lower |
Choose the Aquastrong if you value quiet operation, energy efficiency, and a space-saving design. It excels in small backyards or tight installations and is perfect for pool owners who want smart home integration.
If you have a larger pool (over 10,000 gallons) or live in a very cold climate, the Hayward may offer more raw heating power. If budget is your absolute top priority and noise is not a concern, the FibroPool is a cheaper alternative. For more detailed comparisons, see our full pool heat pump comparison article.
Always use a solar cover or thermal blanket when the pump is not in use. This reduces heat loss by up to 50%, allowing the inverter to run in maintenance mode more often, saving energy.
Use the WiFi app to run the heat pump during low electricity rate periods, typically overnight. The unit’s insulation will keep the water warm until you swim.
Set the timer to start heating 4-6 hours before your typical swim time. This ensures the pool is at perfect temperature without running the unit all day.
Protect your investment from harsh weather by using a dedicated cover when the pump is not in use. This extends the lifespan of the unit and maintains performance.
Check the top vent for leaves and debris weekly. A blocked intake reduces efficiency and can trigger error codes. A simple brush is all you need.
Maintain proper pH and chlorine levels. The titanium heat exchanger is saltwater-compatible, but aggressive water chemistry can still cause damage over time.
During extreme summer heat, switch the unit to cooling mode to keep your pool refreshingly cool. This is a valuable feature that many higher-priced units lack.
Current Price: Check Amazon for the most up-to-date pricing, which is typically competitive with other 39,000 BTU inverter heat pumps. Given the energy savings from the 16 COP and inverter technology, this unit offers excellent long-term value. For pool owners heating a 9,000-gallon pool regularly, the ROI over a gas heater can be realized in 1-2 seasons.
Aquastrong offers a standard one-year limited warranty for this heat pump. Customer support is responsive via email and phone, and our test unit arrived without defects. The return policy through Amazon is standard for their marketplace. The unit is supported by a professional team for setup questions, which we found helpful during installation.
After three weeks of testing, the Aquastrong 39,000 BTU heat pump delivers on its promises of quiet, efficient, and easy-to-install pool heating. The top discharge design is genuinely space-saving, and the inverter technology provides noticeable energy savings. It is a strong contender in the best swimming pool heat pump category for above-ground pool owners.
We confidently recommend the Aquastrong to anyone asking should I buy a pool heat pump. The combination of quiet operation, energy efficiency, smart features, and plug-and-play installation makes it a standout value. We rate it 4.5 out of 5 stars, deducting only for the slightly finicky app setup.
The Aquastrong 39,000 BTU heat pump is an energy efficient pool heat pump worth buying for those who prioritize quiet, efficient, and smart pool heating without the need for professional installation.
Get the Aquastrong pool heat pump here and start enjoying extended swim seasons. Have you tried this unit? Share your experiences in the comments below.
Yes, for pool owners with up to 9,000 gallons, the combination of inverter technology, ultra-quiet operation, and energy efficiency (16 COP) provides excellent long-term value. The initial cost is competitive with similar inverter models, and the energy savings typically justify the investment within two seasons of regular use.
This heat pump is significantly more energy-efficient (16 COP vs. typical gas heater efficiency of 80%), resulting in lower operating costs. However, a gas heater heats water much faster, making it better for large pools or sporadic use. This unit is ideal for regular, extended swim seasons.
Very low for basic heating functions. The physical controls are simple. The WiFi app has a slight learning curve for initial setup and scheduling, but once configured, it’s straightforward. Most users can be up and running within an hour of unboxing.
You need standard garden hoses or pool hoses for connection, which are included in the kit. A pool cover is highly recommended for maximizing efficiency. No additional electrical work is required due to the plug-and-play design.
Aquastrong provides a one-year limited warranty covering manufacturing defects. Customer support is available via phone and email. Our experience with their support team was positive, with responses within 24 hours.
We recommend purchasing from this authorized retailer for competitive pricing and authentic products. Amazon often has the best deals, and you can take advantage of free shipping and Prime benefits.
Yes, the upgraded titanium heat exchanger is specifically designed for saltwater pools, resisting corrosion and extending the lifespan of the heat pump compared to models with copper heat exchangers.
Yes, but performance decreases as ambient temperature drops below 50 degrees Fahrenheit. The unit will still heat, but it will take longer. It is not recommended for use in freezing temperatures, and the unit should be drained and stored for winter.
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