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The 8 Best in ground pool heaters of 2025

Are you trying to find in ground pool heaters among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling in ground pool heaters on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 11 hours of research and did 81 in ground pool heaters tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best in ground pool heaters you can buy today

No. 1
Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas
  • The Hayward Universal H-Series 250,000 BTU Natural Gas Heater delivers premium heating performance for years of reliable, long-lasting comfort
  • A durable cupro nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry
  • Industry-leading hydraulic design reduces circulation pump run time to provide major energy savings
  • Front-panel-only access and intuitive control pad provide easy operation, service and maintenance
  • Low NOx emissions meet air quality standards in all low-NOx areas, ensuring low environmental impact
No. 2
FibroPool Swimming Pool Heat Pump - FH270 70,000 BTU - for Above and In Ground Pools and Spas - High Efficiency, All Electric Heater - No Natural Gas or Propane Needed
81 Consomer Reviews
FibroPool Swimming Pool Heat Pump - FH270 70,000 BTU - for Above and In Ground Pools and Spas - High Efficiency, All Electric Heater - No Natural Gas or Propane Needed
  • CLEAN AND GREEN: The FH270 is powered by clean electricity, reducing the harmful environmental effects and cost of traditional heaters that use natural gas or propane. Our pumps instead move heat from the air into the water, which saves you money and is a breeze to maintain
  • COMPATIBLE WITH: In ground pools up to 15,000 gallons and above ground pools up to 27 foot round or 18 by 33 foot oval. As with all heat pumps, we recommend using in a humid climate down to 50 degrees for best performance. Dry climates are better served by a traditional gas heater
  • HIGH EFFICIENCY: Utilizing high-pressure differential compressors and titanium heat exchangers, FibroPool heat pumps are meticulously designed to be the most energy efficient in their class. You can rest comfortably knowing your family will enjoy years of late season swimming without feeling a squeeze on your electric bill
  • RUGGED DESIGN: Enamel-coated steel chassis is designed to withstand outdoor elements season after season. Slim profile measures just 13"x38"x27", offering a wide range of mounting options. Conveniently installs with included 1 1/2 inch compression fittings on a 240 volt circuit
  • EASY OPERATION: Digital control panel with an easy-to-read display offers convenient temperature setting and monitoring. Optional extension cable allows you to mount the control panel in a location that works best for you
No. 3
Hayward W3H150FDP Universal H-Series 150,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas
  • The Hayward Universal H-Series 150,000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort
  • A durable cupro nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry
  • Industry-leading hydraulic design reduces circulation pump run time to provide major energy savings
  • Front-panel-only access and intuitive control pad provide easy operation, service and maintenance
  • Low NOx emissions meet air quality standards in all low-NOx areas, ensuring low environmental impact
SaleNo. 4
Raypak 266,000 BTU Digital Electronic Ignition Natural Gas Pool Heater
  • Built to withstand various weather conditions, perfect solution for environments requiring efficiency, convenience and versatility.
  • Intermittent spark ignition pilot safety controls. Pilot only comes on when there is a call for heat.
  • Space-age material means the heater won't retain residual heat after it is turned off, allowing it to be installed without the use of costly metal heat sinks.
  • Part Number: 009217 | Model Number: P-R266A-EN-C
  • Gas powered and suitable for use with swimming pools and spas
No. 5
AYCHLG 222000Btu/Hr 480V Up to 40000 Gallons Commercial Pool Heater for Swimming Pools, SPA Pools, and Bathtubs,SPA Water Bath Heater Thermostat Swimming Pool Thermostat Heater Pump
  • 1.220,000 BTU/ hr 480V in coastal climates,the temperature ranged from 71.6 °F-122 °F (22 °C-50 °C)
  • Suitable for 40,000 Gallons -300 sqft In ground Pools, 27' Round-18 x 33 Oval Above ground pools ( Long Island NY- Corpus Christi TX) . If you are not sure about your area's suitability or performance rating, please sned us your zipcode and pool size and we will size it for you.
  • 3.Designed, Engineered, Manufactured and Serviced by Coasts
  • 4.Suitable for ALL Hot Tubs,Above Ground Inground Pool Swimming Pool.
  • 5. 54KW,60 HZ American Voltage.Wired To three Phase 40A GFCI,Use With Water Pump.
No. 6
Dr Infrared Heater DR-1100HP Full DC Inverter 110,000 BTU Heat Pump Ground Swimming Pools, WiFi Smart Control via APP, Black
  • IN-GROUND and ABOVE-GROUND - The 110,000 BTU inverter swimming pool heat pump is recommended for pool sizes up to 32,000 gallons in-ground or above-ground pools. The power-efficient heat pump pool heater is electric powered with an input requirement of 208 - 230 Vac and a current draw between 2.65~25.6A, 0.61~5.9KW. The efficient equivalent of 540%, 5.9 kilowatts will generate 110,000 BTU of heat (the equivalent of 32,237 watts).
  • MARKET LEADING TECHNOLOGY - The Dr. Heater heat pump is designed with industry-leading technology for top performance and stability. Our Full DC Inverter fan motor and compressor can adjust heating capacity between 20% - 100% for the most efficient operation. The compressor is designed with a twin rotary that operates together to balance the movement of each other for anti-shaking, which is higher efficiency, lower vibration & quieter operation.
  • EVERLASTING DURABILITY - The Dr. Heater Full Inverter heat pump is certified by CSA and AHRI for the highest quality and stable performance.
  • WIRELESS CONTROL and SCHEDULING - Built-in WiFi connecting for mobile APP control. Users can easily control the desired temperature and schedule the heat pump to turn on or off in any part of the world. The Dr. Heater heat pump is designed with a Soft-Start function that allows the system to gently boot up, effectively improving the longevity of the unit.
  • CUSTOMER SUPPORT - USA-based customer support to address all questions and concerns. The product is CSA and AHRI-certified.
No. 7
Raypak 009218 PR336AENC49 336000 BTU Natural Gas Pool Heater
  • Integral Fin Copper Exchanger Tube
  • Corrosion-Free Polymer Headers
  • Backlit LCD Controls
  • Self-Diagnostic Microprocessor Controlled Ignition
No. 8
Varpoolfaye 30000 BTU Pool Heater For Inground Pool Heater 120V Swimming Pool Heat Pump Above Ground 8000 Gallon Heating Cooling WiFi Control Schedule
  • Boost warmth efficiently: Inground pool heater delivers up to 30,000 BTU with a COP of 5.8, ideal for pools up to 8000 gallons (14, 16, 18, 21, 23 feet)
  • All-season comfort: This 120V pool heater offers heating (46°F-104°F) and cooling (46°F-82°F) modes for optimal year-round temperature control
  • Smart management: Pool heater heat pump, control temperature, schedule, and settings remotely via WiFi app for convenient and intelligent management.
  • Efficient and quiet: Pool heater for inground pool uses air-source technology with low power consumption; operates quietly at 50 dB for a peaceful swim environment
  • Reliable setup: Pool heat pump built with a titanium heat exchanger, compatible with freshwater and saltwater pools, includes 1.5-inch connectors and 126-inch power cord
No. 9
Varminpool WiFi Control Smart Electric Pool Heater, 30000 BTU, Pool Heat Pump for Above Ground and Inground Pool up to 8000 Gallons, Smart Inverter with Titanium Heat Exchanger, 120V
  • Swim Comfortably Longer: Heat pools up to 8000 gallons or 18 ft in diameter, keeping the water warm and inviting throughout the season.
  • Eco-Friendly Efficiency: Inverter technology adjusts power usage as needed, reducing energy consumption without compromising performance.
  • Smart WiFi Control: Use our app to control the heater remotely, adjust schedules, and set temperatures with ease.
  • Heavy-Duty Components: The titanium heat exchanger resists corrosion, even in saltwater, providing consistent heating.
  • Durable Weather Protection: The galvanized steel and evaporator shield guard against weather damage, keeping the pump efficient year-round.
  • Quick Installation Process: Install the heat pump in 30 minutes or less with no need for professional help or voltage conversion.
  • Safety You Can Trust: Leakage protection plug, flow-switch, and sensors ensure safe operation, providing you with a effortless pool heating solution.
  • Reliable in Any Weather: Engineered to perform consistently in harsh conditions, this heat pump protects critical components for long-term durability.
  • Detailed Specs: 30,000 BTU heat capacity, C.O.P efficiency: 6.0, Power: 110-120 V / 60 Hz. Product size: 35.31" × 13.88" × 21.98". Weight: 90.4 lbs.
No. 10
Aquastrong 75,000 BTU Inverter Swimming Pool Heat Pump, 21,000 Gallons Electric Pool Heater for Above Ground and Inground Pool, WiFi Capable Timer, Heating and Cooling Pool Heater 220V
  • Extend Your Swim Season: The pool heat pump features a dual-mode heating and cooling system that maintains optimal water temperatures year-round. Precision control ensures heating from 47–104℉ and cooling from 47–83℉, allowing you to enjoy extended swimming sessions through autumn’s crisp chill and spring’s cool mornings.
  • Rapid Heating & APP Control: Engineered for speed and efficiency, it delivers 75,000 BTU warmth in hours, perfect for large pools, up to 21,000-gallon systems, or chilly climates. Take full control via the app & control panel. Adjust temperatures remotely, track energy use, and program heating schedules to fit your lifestyle.
  • Inverter Energy Saving: Intelligent heat pump system featuring full DC variable frequency technology delivers 15.8 COP for maximum heating output. Adaptive frequency conversion algorithm dynamically adjusts power in real-time, achieving 70% energy savings over traditional electric heating and 40% higher efficiency than gas systems.
  • Ultra-Quiet & Auto-Defrost: Variable frequency technology reduces operational noise to just 53 dB, paired with an intelligent defrosting system featuring automatically initiated cycles every 40 minutes that complete the process in just 5 minutes, ensuring uninterrupted winter operation with continuous heating performance.
  • Easy to Assemble: Our heat pump features 3 versatile connection options designed to integrate with all pools,(1.25" & 1.5" hose adapter, 1.5" adapter conversion kit, 1.5" PVC pipe converter), ensuring hassle-free installation and optimal performance. Enjoy peace of mind with our 3-year warranty. Dive into comfort and reliability.
SaleNo. 11
Varpoolfaye Electric Pool Heater for Inground Pool 30000 BTU Swimming Pool Heater Pump Above Ground Pool Heater 120V 8000 Gallon Heating or Cooling WiFi Control Schedule
  • High-Performance Heating: Equipped with a high-pressure compressor, pool heater heat pump delivers up to 30000 BTU with a COP of 5.8, suitable for pools up to 8000 gallons, including 14-23 foot pools
  • All-Season Comfort: 120v pool heater offers both heating (46°F-104°F) and cooling (46°F-82°F) modes, ensuring our pool stays at the perfect temperature all year round
  • WiFi-Enabled Control, schedule: Inground pool heater easily manage your pool's temperature, schedule, and other settings through WiFi with the app, providing convenient, remote control for your pool anywhere
  • Energy-Efficient and Quiet: Pool heat pump uses air-source technology to transfer heat to our pool with low electricity consumption, operating at a quiet 52 dB for a peaceful swimming atmosphere
  • Reliable and Easy Setup: Built with a titanium heat exchanger for use in both freshwater and saltwater pools, pool heater includes 1.5 inch connectors and a 126 inch power cord for hassle-free setup
No. 12
Pentair EC-462024 -Natural Gas 125K Heater - Limited Warranty
  • High-performance, affordable heater with premium features
  • 82% energy efficiency is highest in class
  • 1-1/2 in. Plumbing connection -- ideal for smaller bodies of water, including aboveground pools, spas and inground pools up to 15,000 gallons
  • Pre-mixed combustion technology for ultra-fast heat up
  • Easy-to-use digital display/controller
No. 13
SpaChoice 1-Quart Premium Liquid Pool Heater Solar Cover In a Bottle, Liquid Solar Blanket for Pool, Made in USA
  • 4 ounces per 15,000 gallons of water every 2 weeks
  • Solar cover in a bottle
  • Helps prevent heat loss and minimizes evaporation
  • Conserves water, energy and chemicals
  • Extends pool season
No. 14
Mxmoonant Pool Heater 11KW 220V, Electric Swimming Pool Heaters Hot Tub Water Thermostat with Touchscreeen for Above Ground Inground Pool, Spa, Bathtub,
  • [Touchscreen Display]: Compared to traditional temperature knobs, the upgraded touchscreen display on the 11KW pool heater improves visibility and control. The temperature is visually displayed and can be more accurately controlled with ease.
  • [Automatic Circulating Heating]: The swimming pool heaters will cycle on and off based on the preset temperature. When the water temperature reaches or surpasses the preset level, the pool thermostat will automatically shut off. Conversely, if the temperature drops below the preset level, the pool thermostat will automatically turn on again.
  • [Efficient Heating Tube]: The electric pool heater is equipped with 304 stainless steel heating tubes, which provides excellent thermal conductivity. This efficient heat transfer through the heating tubes speeds up heating times and lowers energy costs.
  • [Professional Wiring Method]: Since a hot tubl heater is a high-powered machine, it is designed to be hardwired rather than plugged in. Therefore, it is important to have a licensed electrician handle the installation process. They can ensure your safety and proper wiring to maximize the efficiency and lifespan of your pool heater.
  • [Notice]: 11KW Pool heaters are suitable for pools of around 1000 gallons. In addition, the heating time of a pool heater depends on various factors such as the size of the pool, the desired temperature increase, the power of the pool heaters, and the ambient temperature.
No. 15
Raypak P-R266-A-EP-C Digital Propane Pool Heater, 266 BTU
  • 266,000 BTU propane digital pool and spa heater
  • Microprocessor-controlled thermostat can be set precisely to your liking , set it and forget it
  • Cabinet and the internals are non-corrosive and rust resistant
  • Features PolyTuf powder coating, polymer headers, and an all copper-fin-tube heat exchanger
  • Also features a stainless steel tube sheet, 2 inch CPVC water connections, burner tray and fire tile
No. 16
Hayward W3H135FDN H-Series Pool/Spa Heater, 135k BTU, Natural Gas Model
  • Durable cupro nickel heat exchanger
  • Industry-leading hydraulic performance with faster speed-to-heat capability
  • Intuitive and easy-to-operate electronic panel
  • Exclusive "Totally Managed" cupro nickel heat exchanger water flow
  • Low NOx emissions—meets clean air quality standards
No. 17
Sun2Solar XD2 Deluxe Solar Powered Heater for Inground Swimming Pools | Includes Bypass Kit, Clamps and Hoses | Heats Pools up to 15,000 Gallons | 2 Pack of Solar Heaters
  • Efficient Solar Heating: The 2 Pack of Sun2Solar XD2 Deluxe Pool Heaters uses solar energy to warm your pool, extending your swim season with eco-friendly, sun powered heating for pools up to 15,000 gallons
  • Simple Installation & Bypass Kit Included: Easy setup with no need for electric or gas connections, and each heater includes a bypass kit to control water flow, ensuring optimal heating with 1 HP pumps or higher
  • Ideal for Inground Pools: Designed specifically for inground pools, this 2 unit set connected in series allows for enhanced heating efficiency making the water warmer in less time
  • Durable & Compact Design: Each XD2 Heater Measures 30.7” L x 30.7” W x 15.35” H, and comes with a protective cover for use when the heater is not in operation
  • Full Accessories Pack: Includes adapters for Intex pools, hose reducers, Teflon tape, and clamps, providing everything needed for a complete and hassle-free installation
No. 18
SunHeater Pool Solar Blanket - Heavy Duty Rectangular Thermal Cover with Bubbles - Heat Transfer Solar Pool Heater for In-Ground Swimming Pools - Durable 12 Mil Thick Polyethylene - 16' x 32' Feet
  • Soak Up The Sun - Heat your pool the natural way with this blue solar blanket! When placed on top of the pool with the bubbles facing down, it traps the warmth from the sun and transfers it to the water.
  • Keep Refills To A Minimum - Using this above ground pool heater can help minimize evaporation by up to 95%. This translates to significant savings since you don't have to add more water as often.
  • Cut Down Cleaning Time & Costs - Our pool solar cover also helps keep leaves, dirt, and debris at bay. Cut down time spent on skimming and fishing out impurities and save on cleaning products!
  • Customize According To Your Needs - This 16x32 feet solar pool cover is suitable for rectangular in-ground and above-ground pools. It can also be trimmed to fit square, round, and kidney-shaped pools.
  • Storage Made Convenient - Despite its large dimensions, this 12 mil pool solar heater can be easily folded down to a compact size. Simply store it away in your shed or on a shelf when it's not in use.
No. 19
LINGLONGTEMP 240V 3500W Fully Submersible, Electric Hot Tub & Large Swimming Pool immersion Water Heater with Temperature Control, GFCI Leakage Protection for Baptismal pool, Bathtubs, ground Pool
  • 316 Food-Grade Stainless Steel Water Heater: Compared with other 304 water heaters, our 316 stainless steel fully submersible water heater is made of corrosion-resistant 316 material, ensuring longer durability. Especially during long-term use, this fully submersible heater provides excellent continuous heating performance. It can operate quietly even for a long time, making it an ideal choice for swimming pool heaters and ensuring long-term use without malfunctions.
  • Fast Heating for Instant Hot Water: Equipped with 240V 3500W power and Temperature Control, this Fully Submersible water heater significantly improves heating speed compared to other 1300W heaters. It is both efficient and economical, saving you more time and money, especially during cold winters and daily use. Enhance your family’s quality of life with more comfortable and efficient heating.
  • GFCI Leakage Protection: This heater is equipped with GFCI leakage protection and overload protection to prevent electrical leakage and reduce the risk of fire, greatly enhancing safety for you and your family. The 316 Stainless Steel Portable Fully Submersible Water Heater also uses rubber-insulated cables with superior water insulation compared to others, and the cable body is additionally insulated. The dual insulation protection ensures safety and prevents accidents.
  • Precise Temperature Control: The Temperature Control panel is user-friendly and equipped with a corrosion-resistant, highly sensitive temperature sensor. Submerged in liquid, the thermostat Fully Submersible heater can precisely maintain the temperature within ±0.1°C, Long press SET for more than 3 seconds when the LED display blinks set your desired temperature, press the up and down buttons to increase or decrease the temperature, regular state press SET can be freely switched Fahrenheit degrees Celsius unit switching.
  • Wide Application: The Portable 316 Stainless Steel Fully Submersible Water Heater is versatile and can be used in any liquid environment, making it suitable for swimming pools, bathtubs, baptismal pools, hot tubs, water buckets, spa tubs, fish tanks, kitchen sinks, water tanks, livestock troughs, and more.
No. 20
Hayward W3H135FDP H-Series Pool Heater, Beige
  • Durable cupro nickel heat exchanger
  • Industry-leading hydraulic performance with faster speed-to-heat capability
  • Intuitive and easy-to-operate electronic panel
  • Exclusive "Totally Managed" cupro nickel heat exchanger water flow
  • Low NOx emissions—meets clean air quality standards

How to choose a good in ground pool heaters

Does the idea of finding a fantastic in ground pool heaters make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in in ground pool heaters. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top in ground pool heaters products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top in ground pool heaters on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top in ground pool heaters brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top in ground pool heaters based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the in ground pool heaters were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good in ground pool heaters, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your in ground pool heaters.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting in ground pool heaters for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our in ground pool heaters. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what in ground pool heaters should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on in ground pool heaters.