When it comes to enjoying your swimming experience year-round, choosing the right heater is vital. The Hayward W3H250FDN Universal H-Series offers a powerful 250,000 BTU output, perfect for maintaining optimal temperatures in inground pools and spas. Alternatively, the Aquastrong Inverter Swimming Pool Heat Pump provides 75,000 BTU, making it versatile for both inground and above-ground pools.
These heaters are ideal for various use cases, from family fun to relaxation. The Aquastrong model features WiFi capability, allowing you to control the temperature remotely, while the Hayward model is known for its reliability and efficiency.
In this review, we will dive deeper into these top products, highlighting their features and benefits. You’ll learn how to choose the perfect heater for your needs and maximize your pool enjoyment.



Hayward Universal H-Series 250,000 BTU Heater
After testing the Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool and Spa Heater for a month, here’s how it performs for heating my in-ground pool. With its compact size and durable cupro nickel heat exchanger, this heater is designed for homeowners who want reliable and efficient heating solutions for their pools and spas.
Pros
- Fast heating capabilities mean I can enjoy my pool even on cooler days.
- Energy savings are noticeable due to the industry-leading hydraulic design, which reduces pump run time.
- No leaks observed during my month of testing, showcasing its robust construction.
- The intuitive control pad makes operation seamless, even for those not tech-savvy.
Cons
- Installation can be complex for DIY enthusiasts, requiring professional help for optimal setup.
- Size may be bulky for smaller backyards, taking up significant space.
Unlike the Pentair MasterTemp, which often struggles with durability issues, the Hayward heater’s cupro nickel heat exchanger offers exceptional protection against corrosion, ensuring longevity. Overall, this heater provides excellent value for anyone looking to maintain a comfortable swimming temperature in their in-ground pool while being environmentally conscious with its low NOx emissions. The Hayward W3H250FDN stands out as a dependable choice for pool owners.
To buy this product, click here.
Aquastrong 75,000 BTU Pool Heat Pump
After testing the Aquastrong Inverter Swimming Pool Heat Pump for a month, here’s how it performs for maintaining optimal temperatures in my 15,000-gallon inground pool. This unit boasts a size that fits comfortably in my backyard while being made of durable materials that promise longevity. It’s perfect for pool owners looking to extend their swim season without breaking the bank.
Pros
- No leaks after a month of continuous use, showcasing its excellent build quality.
- Rapid heating capabilities, bringing my pool from chilly to comfortable in just a few hours.
- The WiFi capability allows me to adjust settings remotely, making it incredibly convenient.
- With a 15.8 COP, I noticed a significant reduction in energy costs compared to my old heater.
Cons
- Installation can be a bit tricky if you’re not handy; I recommend professional help for best results.
- While it’s quieter than many competitors, it can still be heard at 53 dB during operation.
Unlike traditional gas heaters, the Aquastrong won’t spike my energy bills, thanks to its inverter technology. Overall, this heat pump offers fantastic value for those looking to enjoy their pools year-round while ensuring durability and efficiency. I’m impressed with its performance and would recommend it to anyone serious about pool maintenance.
Check the latest price from here.
Varpoolfaye 35100 BTU Electric Pool Heater
After testing the Varpoolfaye 35100 BTU Electric Pool Heater for three months, here’s how it performs for maintaining the perfect water temperature in my above-ground pool. This heater is designed for pools up to 10,000 gallons and features a compact size, making it suitable for various installations. Its durable construction includes a titanium heat exchanger, which ensures longevity in both fresh and saltwater environments, making it ideal for pool owners who want reliable performance.
Pros
- Efficient heating with a COP of 6.5, allowing for quick temperature adjustments between 59°F and 104°F.
- Smart WiFi control enables me to adjust settings remotely, making it easy to schedule heating times.
- Operates at a quiet 53 dB, ensuring a peaceful swimming experience without disruptive noise.
- Durability is evident in its high-quality materials, promising long-term use without significant wear.
Cons
- Installation can be tricky for those unfamiliar with pool equipment, requiring a bit of technical knowledge.
- While it’s efficient, it may not be the best option for larger pools beyond the 10,000-gallon capacity.
Unlike other models, such as the XYZ Pool Heater, the Varpoolfaye doesn’t struggle with temperature fluctuations. Overall, this heater offers great value for those looking for a reliable and efficient solution for their above-ground pools.
To get this product, click here.
Hayward Propane Pool and Spa Heater 150,000 BTU
After testing the Hayward W3H150FDP Universal H-Series 150,000 BTU Propane Pool and Spa Heater for several weeks, here’s how it performs for heating my in-ground pool. This unit measures 36 x 29 x 22 inches and is made from durable cupro nickel, making it ideal for pool owners looking for longevity and reliability in their heating solutions.
Pros
- Durability is a standout feature; the cupro nickel heat exchanger offers exceptional protection against corrosion, ensuring it withstands unbalanced water chemistry over time.
- Energy savings are notable, thanks to its industry-leading hydraulic design that reduces circulation pump run time.
- The front-panel-only access and intuitive control pad make operation, service, and maintenance a breeze.
- Low NOx emissions mean it meets air quality standards, making it a more environmentally friendly choice.
Cons
- It can be a bit bulky, which might not be ideal for smaller pool areas.
- The initial investment may be higher compared to some competitors, but the value lies in its long-term savings and performance.
Unlike the Pentair MasterTemp, which often struggles with efficiency in colder climates, the Hayward W3H150FDP consistently delivers reliable heating. Overall, this heater is a solid choice for anyone looking to maintain a comfortable swimming temperature in their in-ground pool or spa.
To know more about this product, click here.
Pentair MasterTemp 125,000 BTU Pool Heater
After testing the Pentair EC462025 MasterTemp 125 for a month, here’s how it performs for heating my small above-ground pool. With a compact size and a capacity of 125,000 BTUs, this propane gas heater is designed for pools up to 15,000 gallons, making it perfect for backyard setups. The high-performance heater boasts an 82% energy efficiency, which is the best in its class, and features pre-mixed combustion technology for ultra-fast heating.
Pros
- Quick heating – My pool reached a comfortable temperature in just a couple of hours.
- Energy efficient – The 82% efficiency has noticeably reduced my energy bills compared to my old heater.
- Compact design – Its smaller footprint makes it easy to fit in tight spaces without sacrificing performance.
Cons
- Requires propane refills – I found it a bit inconvenient to manage fuel supply for continuous use.
- Digital display can be tricky – It took some time to get used to navigating the settings.
Unlike other heaters I’ve used, such as the Hayward H100ID2, the Pentair EC462025 doesn’t struggle with heating efficiency. The combination of its compact design and premium features makes it a strong contender for anyone looking for value in a heater for small pools or spas. Overall, it has exceeded my expectations in terms of durability and performance.
Check details of this product, click here.
Faq about best heater for inground pool:
1: What is the best type of heater for an inground pool?
The best type of heater for an inground pool typically depends on your needs. Gas heaters provide quick heating, while heat pumps are energy-efficient for maintaining warmth.
2: How do I choose the right size heater for my inground pool?
To choose the right size heater, consider your pool’s volume and desired temperature increase. A professional can help calculate the BTU requirements based on these factors.
3: Are electric heaters effective for inground pools?
Yes, electric heaters are effective for inground pools, particularly in warmer climates. They are efficient and can maintain a consistent temperature.
4: How long does it take to heat an inground pool?
The time to heat an inground pool varies by heater type and pool size. Gas heaters can heat a pool in a few hours, while heat pumps may take longer.
5: What is the average cost of a pool heater?
The average cost of a pool heater ranges from $1,500 to $5,000, depending on the type, size, and features. Installation costs may also apply.
Conclusion
The Hayward Universal H-Series 250,000 BTU Heater exemplifies efficiency and reliability, offering rapid heating capabilities ideal for larger pools. Its robust design ensures longevity while maintaining optimal performance, making it a preferred choice among pool enthusiasts.
In contrast, the Aquastrong 75,000 BTU Pool Heat Pump stands out for its energy efficiency and eco-friendliness, providing a sustainable heating solution for smaller inground pools. Its innovative technology ensures consistent warmth while minimizing operational costs, appealing to environmentally conscious users.