Best Inground Pool Heaters 2021 - Top 10 Picks

This is the ultimate buyer's guide to finding the right inground pool heaters to suit your needs. We review the 10 bestinground pool heaters on the market so you know that your next decision will be a smart one!

When you're trying to select the good inground pool heaters, there are a lot of factors to consider. This page has everything you need to know in one place.

This guide will help you avoid the pitfalls that come with researching inground pool heaters.

You don't have to try out every inground pool heaters to find one that meets your needs. After extensive research and hours of in-person tests, we've found the best inground pool heaters to be 220V 240V 18KW Electric Pool Water Heater for Above Ground Inground Pool,Upgrade Portable SPA Water Bath Heater Thermostat Swimming Pool Thermostat Heater Pump. There are a lot of sub-par products out there, but this product is one of the highest quality you'll find. Next best option is Hayward W3H150FDP Universal H-Series 150,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas.

Choosing the inground pool heaters can be a daunting task, especially if you're doing it for the first time. Here's what we recommend based on our extensive research. We've compiled a list of the highest rated inground pool heaters. The following products are some of the best you can get right now.

List of Top 10 Inground Pool Heaters

Review of Best Inground Pool Heaters

1. 220V 240V 18KW Electric Pool Water Heater for Above Ground Inground Pool,Upgrade Portable SPA Water Bath Heater Thermostat Swimming Pool Thermostat Heater Pump

  • 1.(New Brand:Coasts)316# stainless steel, Best in its class
  • 2.60000 Btu/Hr heating capacity, 18KW
  • 3.Suitable for pools up to 7500 gallons in coastal climates
  • 4.Suitable for ALL Hot Tubs,Above Ground Inground Pool Swimming Pool.
  • 5.240 Volts 75A - 60 HZ American Voltage.Use With Water Pump.

2. Hayward W3H150FDP Universal H-Series 150,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas

  • BEST FOR: In-ground pools and spas with a surface area up to 400 ft. where natural gas is available. Its low environmental impact makes it ideal for pools and spas located where low-NOx emissions are required.
  • PREMIUM PERFORMANCE: The Hayward Universal H-Series 150,000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort.
  • CORROSION PROTECTION: The Universal H-Series boasts exceptional protection against corrosion and premature failure caused by unbalanced water chemistry.
  • ENERGY SAVINGS: The efficient, industry-leading design reduces circulation pump run time to provide energy savings.
  • EASY-TO-USE: Intuitive front control panel provides easy operation, service and maintenance.

3. Hayward W3H400FDN Universal H-Series 400,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas

  • BEST FOR: In-ground pools and spas with a surface area up to 1,200 ft. where natural gas is available. Its low environmental impact makes it ideal for pools and spas located where low-NOx emissions are required.
  • PREMIUM PERFORMANCE: The Hayward Universal H-Series 400,000 BTU Natural Gas Heater delivers fast premium heating performance for years of reliable, long-lasting comfort.
  • CORROSION PROTECTION: The Universal H-Series boasts exceptional protection against corrosion and premature failure caused by unbalanced water chemistry.
  • ENERGY SAVINGS: The efficient, industry-leading design reduces circulation pump run time to provide energy savings.
  • EASY-TO-USE: Intuitive front control panel provides easy operation, service and maintenance.

4. Raypak 266,000 BTU Digital Electronic Ignition Natural Gas Pool Heater

  • Part Number: 009217
  • Model Number: P-R266A-EN-C
  • LCD digital display provides accurate temperature
  • Monitors operational status as well as service diagnostics
  • High-wind resistance

6. Hayward W3HP21404T HeatPro 140,000 BTU Pool Heat Pump for In-Ground Pools

  • BEST FOR: In-ground pools that are used regularly and benefit from maintaining an ideal consistent temperature. Non-corrosive design makes it durable for coastal climates.
  • ECONOMICAL HEATING: Using the surrounding air to heat the pool, HeatPro is more economical than propane, natural gas and electric heaters for maintaining the ideal water temperature.
  • UNPARALLELED DURABILITY: Ultra Gold corrosion-resistant technology provides unparalleled durability, even in harsh coastal environments.
  • CORROSION RESISTANT: Titanium heat exchanger ensures maximum heat transfer and provides excellent salt water and chemical corrosion resistance. UV-resistant body panels are impervious to corrosion and deterioration
  • TRUSTED BRAND: With over 80 years of experience, Hayward is an industry leader in manufacturing advanced pool equipment.

7. GAME 4721-BB SolarPRO Curve Solar Pool Heater, Made for Intex & Bestway Above-Ground and Inground Pools, Includes Intex Adapters, 2 Hoses & Clamps

  • SOLAR POOL HEATER: The GAME SolarPRO Curve Solar Pool Heater has been designed for above-ground and most inground pools. It increases the pool temperature by 5 degrees in 4 days (for an 8,000-gallon pool).
  • DURABLE CONSTRUCTION: We’ve designed this above-ground solar pool heater with high-quality materials that will hold up against frequent exposure to the sun and outdoor elements.
  • UNIQUE CURVED SHAPE: The GAME solar pool heater has been engineered with a unique curved shape that maximizes heat collection. The treaded ports have been added for versatile plumbing options.
  • ADJUSTABLE LEGS: This solar heater is compatible with Intex, Bestways, and most above and inground pools. The adjustable and foldable legs allow the heater to be set for maximum exposure to the sun, along with a clear cover that locks in heat.
  • THE PERFECT GRADUAL HEATER: This solar pool heater is not intended to be a miracle-cure heater. It’s designed to extend your pool season by gradually increasing the water temperature by a few degrees. Maximum heat output with space saving footprint

8. EcoSmart SMART POOL 27 Electric Tankless Pool Heater, 27kW, 240 Volt, 112.5 Amps with Self Modulating Technology

  • Flow Activation
  • Eco smart Pool Heaters are compact and easy to install for a new or existing pool
  • Set your temperature digitally to increments of 1-Degree. Set it and forget it.
  • Compatible with Eco smart Remote Control. Activation Flow - 12 +/- 2 GPM
  • Can be used as an alternative to or booster to heat pump.

9. CMQ 240V 9KW Electric Pool Water Heater for Above Ground Inground Pool,Upgrade Portable SPA Water Bath Heater Thermostat Swimming Pool Thermostat Heater Pump

  • 1.(New Brand:Coasts)316# stainless steel, Best in its class
  • 2.30000 Btu/Hr heating capacity, 9KW
  • 3.Suitable for pools up to 5000 gallons in coastal climates
  • 4.Suitable for ALL Hot Tubs,Above Ground Inground Pool Swimming Pool.
  • 5.240 Volts 37.5A - 60 HZ American Voltage.Use With Water Pump.

10. Hayward W3HP50HA2 HeatPro Heat Pump, Beige

  • Advanced heat pump technology uses less energy than natural gas and propane heaters
  • Provides ideal water temperatures, even in harsh weather conditions
  • Digital control panel displays temperature and allows for simple control of settings
  • Efficient rotary compressor and low-noise fan guarantee extremely quiet operation. Durable titanium heat exchanger provides exceptional corrosion protection
  • AHRI certified and independently lab-tested to ensure the highest quality performance and value

Last update on 2021-09-26 / Affiliate links / Images from Amazon Product Advertising API

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