20 Best Pool Heater For Inground Pool (2023 Updated)

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A pool heater for an inground pool is a device that is used to heat the water in the pool. The pool heater is usually a gas or oil-fired boiler that is used to heat the water in the pool. The pool heater is usually placed in the pool area and is connected to the pool pump.

The pool heater is used to maintain the temperature of the water in the pool and to keep the water from freezing.

20 Best Pool Heater For Inground Pool

Product Image Product Name Features Price

Hayward H-Series Universal Low Nox Pool Heater 250,000 BTU Natural GAS

  • 250,000 Btu

Hayward Universal H-Series Low Nox Pool Heater 400K BTU Propane

  • The Hayward Universal H-Series 400,000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort

Hayward HeatPro Heat Pump 140,000 BTU – W3HP21404T

  • 140,000 Btu

Pentair MasterTemp Pool Heater 175,000 BTU Natural GAS Low Nox 460792

  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required

Hayward Universal H-Series Low Nox Pool Heater 150K BTU Propane

  • Durable cupro nickel heat exchanger
  • Industry-leading hydraulic performance with faster speed-to-heat capability
  • Intuitive and easy-to-operate electronic panel

Hayward Universal H-Series Low Nox Pool Heater 200K BTU Propane

  • The Hayward Universal H-Series 200,000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort

Raypak 014779 PR106AENC 105000 BTU Natural GAS Pool Heater

  • Energy-smart Ruud heaters consistently achieve the highest efficiency ratings.
  • 1 YearWind-Resistant Design
  • Prevent rust stains from harming your pool or spas surface, giving you years of trouble-free swimming pleasureAll-Copper-Fin-Tube Heat Exchanger

Pentair MasterTemp 400K BTU Natural GAS Pool Heater 460736

  • Heats up fast so no long waits before enjoying your pool or spa
  • Best in class energy efficiency
  • Manual gas shut-off when service is required

Raypak 009218 336000 BTU Natural GAS Pool Heater

  • 31 x 30.5 x 44 in.

Pentair MasterTemp 125 125,000 BTU Natural GAS Compact Pool & Spa Heater System

  • 125,000 BTU Rating.
  • Operates on Natural Gas.
  • 1 1/2″ Plumbing Intake and Discharge.

Raypak 156,000 BTU Digital Swimming Pool and Spa Heater – Propane

  • 156,000 Btu

Raypak 014781 PR106AAPC 105000 BTU Propane GAS Pool Heater

  • Energy-smart Ruud heaters consistently achieve the highest efficiency ratings.
  • 1 YearWind-Resistant Design
  • Prevent rust stains from harming your pool or spas surface, giving you years of trouble-free swimming pleasureAll-Copper-Fin-Tube Heat Exchanger

Pentair 460736 MasterTemp High Performance Pool Heater

  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required

Hayward Universal H-Series Low Nox 250K BTU Pool Heater (Propane) H250FDP

  • New polymer header provides superior hydraulic performance to save energy and protect against the damaging effects of erosion

Pentair MasterTemp 250K BTU Natural GAS Pool Heater 460732

  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required

Pentair MasterTemp Pool Heater 400,000 BTU Natural GAS EC-462028

  • Heats up fast – no long waits before enjoying your pool or spa!
  • Best-in-class energy efficiency.
  • Manual gas shut-off when service is required.

Pentair MasterTemp 200K BTU Natural GAS Pool Heater 460730

  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required

Sta-Rite Max-E-Therm 400,000 BTU Natural GAS Pool Heater SR400NA

  • 400k Btu
Hayward H-Series Universal Low Nox Pool Heater 250,000 BTU Natural GAS
  • 250,000 Btu
Hayward Universal H-Series Low Nox Pool Heater 400K BTU Propane
  • The Hayward Universal H-Series 400,000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort
Hayward HeatPro Heat Pump 140,000 BTU – W3HP21404T
  • 140,000 Btu
Pentair MasterTemp Pool Heater 175,000 BTU Natural GAS Low Nox 460792
  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required
Hayward Universal H-Series Low Nox Pool Heater 150K BTU Propane
  • Durable cupro nickel heat exchanger
  • Industry-leading hydraulic performance with faster speed-to-heat capability
  • Intuitive and easy-to-operate electronic panel
Hayward Universal H-Series Low Nox Pool Heater 200K BTU Propane
  • The Hayward Universal H-Series 200,000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort
Raypak 014779 PR106AENC 105000 BTU Natural GAS Pool Heater
  • Energy-smart Ruud heaters consistently achieve the highest efficiency ratings.
  • 1 YearWind-Resistant Design
  • Prevent rust stains from harming your pool or spas surface, giving you years of trouble-free swimming pleasureAll-Copper-Fin-Tube Heat Exchanger
Pentair MasterTemp 400K BTU Natural GAS Pool Heater 460736
  • Heats up fast so no long waits before enjoying your pool or spa
  • Best in class energy efficiency
  • Manual gas shut-off when service is required
Raypak 009218 336000 BTU Natural GAS Pool Heater
  • 31 x 30.5 x 44 in.
Pentair MasterTemp 125 125,000 BTU Natural GAS Compact Pool & Spa Heater System
  • 125,000 BTU Rating.
  • Operates on Natural Gas.
  • 1 1/2″ Plumbing Intake and Discharge.
Raypak 156,000 BTU Digital Swimming Pool and Spa Heater – Propane
  • 156,000 Btu
Raypak 014781 PR106AAPC 105000 BTU Propane GAS Pool Heater
  • Energy-smart Ruud heaters consistently achieve the highest efficiency ratings.
  • 1 YearWind-Resistant Design
  • Prevent rust stains from harming your pool or spas surface, giving you years of trouble-free swimming pleasureAll-Copper-Fin-Tube Heat Exchanger
Pentair 460736 MasterTemp High Performance Pool Heater
  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required
Hayward Universal H-Series Low Nox 250K BTU Pool Heater (Propane) H250FDP
  • New polymer header provides superior hydraulic performance to save energy and protect against the damaging effects of erosion
Pentair MasterTemp 250K BTU Natural GAS Pool Heater 460732
  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required
Pentair MasterTemp Pool Heater 400,000 BTU Natural GAS EC-462028
  • Heats up fast – no long waits before enjoying your pool or spa!
  • Best-in-class energy efficiency.
  • Manual gas shut-off when service is required.
Pentair MasterTemp 200K BTU Natural GAS Pool Heater 460730
  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required
Sta-Rite Max-E-Therm 400,000 BTU Natural GAS Pool Heater SR400NA
  • 400k Btu

1. Hayward H-Series Universal Low Nox Pool Heater 250,000 BTU Natural GAS

Hayward H-Series Universal Low Nox Pool Heater 250,000 BTU Natural GAS

  • 250,000 Btu

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart
Leslie’s Pool Supplies

Product Details

Specifications

Details
Controls Digital
Eco-Friendly YES
Elevation 5,400 – 10,100 ft and 0 – 5,400 ft
Emission Low NOx
Energy Efficient YES

Reviews From Real Customers

atropicalknead

2. Hayward Universal H-Series Low Nox Pool Heater 400K BTU Propane

Hayward Universal H-Series Low Nox Pool Heater 400K BTU Propane

  • The Hayward Universal H-Series 400,000 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

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart – Backyard & Pool Superstore
Leslie’s Pool Supplies

Product Details

Specifications

Details
Gas Type Liquid Propane
Headers Polymer
Control Type Digital Electric, Dual Thermostat
Tubing Material Cupro Nickel
BTUH Input 400,000

3. Hayward HeatPro Heat Pump 140,000 BTU – W3HP21404T

Hayward HeatPro Heat Pump 140,000 BTU - W3HP21404T

  • 140,000 Btu

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart
Leslie’s Pool Supplies

Product Details

Specifications

Details
Application In ground pools
BTU Performance 140,000
Cabinet Depth 34 Inch
Cabinet Height 37 Inch
Cabinet Width 44 Inch

Reviews From Real Customers

catmanbob
vicksean
jeiphillips93yx

4. Pentair MasterTemp Pool Heater 175,000 BTU Natural GAS Low Nox 460792

Pentair MasterTemp Pool Heater 175,000 BTU Natural GAS Low Nox 460792

  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required
  • MasterTemp is certified for low NOx emission and outperforms industry standards

Check Latest Price

Sold By Price
Amazon.com – Seller
PoolSupply4Less
American Best Pool Supply
Doheny’s

Product Details

Specifications

Details
Dimensions 36″ x 25″ x 30″
BTU 100K – 179K
Exchange Copper
Warranty 60 day parts only when purchased online

Reviews From Real Customers

jim.thebuilder
DR74
Danial

5. Hayward Universal H-Series Low Nox Pool Heater 150K BTU Propane

Hayward Universal H-Series Low Nox Pool Heater 150K BTU Propane

  • 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

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart
InTheSwim Pool Supplies

Product Details

Specifications

Details
Gas Type Liquid Propane
Headers Polymer
Control Type Digital Electric, Dual Thermostat
Tubing Material Cupro Nickel
BTUH Input 150,000

6. Hayward Universal H-Series Low Nox Pool Heater 200K BTU Propane

Hayward Universal H-Series Low Nox Pool Heater 200K BTU Propane

  • The Hayward Universal H-Series 200,000 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

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart – Backyard & Pool Superstore
Leslie’s Pool Supplies

Product Details

Specifications

Details
Gas Type Liquid Propane
Headers Polymer
Control Type Digital Electric, Dual Thermostat
Tubing Material Cupro Nickel
BTUH Input 200,000

7. Raypak 014779 PR106AENC 105000 BTU Natural GAS Pool Heater

Raypak 014779 PR106AENC 105000 BTU Natural GAS Pool Heater

  • Energy-smart Ruud heaters consistently achieve the highest efficiency ratings.
  • 1 YearWind-Resistant Design
  • Prevent rust stains from harming your pool or spas surface, giving you years of trouble-free swimming pleasureAll-Copper-Fin-Tube Heat Exchanger

Check Latest Price

Sold By Price
Amazon
Walmart – UnbeatableSale
Doheny’s
Home Depot

Product Details

Specifications

Details
Amperage Draw 4 A at 120 V, 2 A at 240 V
Cabinet Depth 24 Inch
Cabinet Height 27-1/2 Inch
Cabinet Width 12 Inch
Control Type Analog

Reviews From Real Customers

Mark C.
Cody S.

8. Pentair MasterTemp 400K BTU Natural GAS Pool Heater 460736

Pentair MasterTemp 400K BTU Natural GAS Pool Heater 460736

  • Heats up fast so no long waits before enjoying your pool or spa
  • Best in class energy efficiency
  • Manual gas shut-off when service is required
  • Rotating digital display allows for easy viewing
  • Tough, rustproof exterior handles the heat and weathers the elements

Check Latest Price

Sold By Price
Amazon
eBay – poolsupplymall
American Best Pool Supply
Doheny’s

Product Details

Specifications

Details
Cabinet Depth 32.61 Inch
Cabinet Height 28.15 Inch
Cabinet Width 23.02 Inch
Control Type Digital
Flow Rate 120 gpm

Reviews From Real Customers

Christina C.

9. Raypak 009218 336000 BTU Natural GAS Pool Heater

Raypak 009218 336000 BTU Natural GAS Pool Heater

  • 31 x 30.5 x 44 in.

Check Latest Price

Sold By Price
Amazon
Walmart
PoolSupply4Less
Doheny’s

Product Details

Specifications

Details
Weight 250 lb

Reviews From Real Customers

pool g.

10. Pentair MasterTemp 125 125,000 BTU Natural GAS Compact Pool & Spa Heater System

Pentair MasterTemp 125 125,000 BTU Natural GAS Compact Pool & Spa Heater System

  • 125,000 BTU Rating.
  • Operates on Natural Gas.
  • 1 1/2″ Plumbing Intake and Discharge.
  • 83% Energy Efficiency Rating.
  • Intuitive and Easy-to-Use Display and Control Pad.

Check Latest Price

Sold By Price
Amazon
Walmart
Pool Supply Unlimited
Leslie’s Pool Supplies

Product Details

Specifications

Details
Weight 130 lb

11. Raypak 156,000 BTU Digital Swimming Pool and Spa Heater – Propane

Raypak 156,000 BTU Digital Swimming Pool and Spa Heater - Propane

  • 156,000 Btu

Check Latest Price

Sold By Price
Amazon
eBay
Walmart
Leslie’s Pool Supplies

Product Details

Specifications

Details
Amperage Draw 4 A at 120 V, 2 A at 240 V
Cabinet Depth 27 Inch
Cabinet Height 27-1/2 Inch
Cabinet Width 12 Inch
Control Type Digital Electronic

12. Raypak 014781 PR106AAPC 105000 BTU Propane GAS Pool Heater

Raypak 014781 PR106AAPC 105000 BTU Propane GAS Pool Heater

  • Energy-smart Ruud heaters consistently achieve the highest efficiency ratings.
  • 1 YearWind-Resistant Design
  • Prevent rust stains from harming your pool or spas surface, giving you years of trouble-free swimming pleasureAll-Copper-Fin-Tube Heat Exchanger

Check Latest Price

Sold By Price
Amazon
eBay
PoolSupply4Less
Aqua Supercenter

Product Details

Specifications

Details
Resources Find a Service Provider

13. Pentair 460736 MasterTemp High Performance Pool Heater

Pentair 460736 MasterTemp High Performance Pool Heater

  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required
  • Eco-friendly MasterTemp is certified for low NOx emission and outperforms industry standards
  • Rotating digital display allows for easy viewing

Check Latest Price

Sold By Price
Amazon
PoolSupplyMall.com

Product Details

14. Hayward Universal H-Series Low Nox 250K BTU Pool Heater (Propane) H250FDP

Hayward Universal H-Series Low Nox 250K BTU Pool Heater (Propane) H250FDP

  • New polymer header provides superior hydraulic performance to save energy and protect against the damaging effects of erosion
  • Forced draft system constantly moves air through the combustion chamber at a precise flow rate, eliminating all outside weather variables
  • Patented single header “V” baffle design heat exchangers allow for long life, fast heating and virtually no condensation
  • State-of-the-art finn plate heat exchanger with cupro nickel
  • Easy-to-read LED control panel provides digital temperature readout and diagnostics for quick identification of components that might need service

Check Latest Price

Sold By Price
Amazon
Doheny’s
PoolSupply4Less
Pool Supplies Superstore

Product Details

15. Pentair MasterTemp 250K BTU Natural GAS Pool Heater 460732

Pentair MasterTemp 250K BTU Natural GAS Pool Heater 460732

  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required
  • Eco-friendly MasterTemp is certified for low NOx emission and outperforms industry standards
  • Rotating digital display allows for easy viewing

Check Latest Price

Sold By Price
Walmart – PoolSupplyMall
Doheny’s
PoolSupply4Less
American Best Pool Supply

Product Details

Specifications

Details
Weight 1951.99 lb

16. Pentair MasterTemp Pool Heater 400,000 BTU Natural GAS EC-462028

Pentair MasterTemp Pool Heater 400,000 BTU Natural GAS EC-462028

  • Heats up fast – no long waits before enjoying your pool or spa!
  • Best-in-class energy efficiency.
  • Manual gas shut-off when service is required.
  • Eco-friendly MasterTemp Heater is certified for low NOx emission and outperforms industry standards.
  • Rotating digital display allows for easy viewing.

Check Latest Price

Sold By Price
Walmart – In The Swim
Leslie’s Pool Supplies
Pool Supply Unlimited
PoolSupply4Less

Product Details

Specifications

Details
Weight 159 lb

17. Pentair MasterTemp 200K BTU Natural GAS Pool Heater 460730

Pentair MasterTemp 200K BTU Natural GAS Pool Heater 460730

  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required
  • Eco-friendly MasterTemp is certified for low NOx emission and outperforms industry standards
  • Rotating digital display allows for easy viewing

Check Latest Price

Sold By Price
PoolSupply4Less
Doheny’s
American Best Pool Supply
Swimming Pool Supply USA

Product Details

Specifications

Details
Cabinet Depth 32.61 Inch
Cabinet Height 28.15 Inch
Cabinet Width 23.02 Inch
Control Type Digital
Flow Rate 120 gpm

18. Pentair MasterTemp 300K BTU Natural GAS Pool Heater 460734

Pentair MasterTemp 300K BTU Natural GAS Pool Heater 460734

Check Latest Price

Sold By Price
PoolSupply4Less
Doheny’s
American Best Pool Supply
Swimming Pool Supply USA

Product Details

Specifications

Details
Ignition Electronic
Elevation 0 – 2,000 ft
Heat Exchanger Copper
Emission Low NOx
Fuel Type Natural Gas
Installation Type Residential
Controls Digital
Heat Output 300,000 BTU
Energy Efficient Yes
Eco-Friendly Yes
Warranty 60 Day

19. Sta-Rite Max-E-Therm 400,000 BTU Natural GAS Pool Heater SR400NA

Sta-Rite Max-E-Therm 400,000 BTU Natural GAS Pool Heater SR400NA

  • 400k Btu

Check Latest Price

Sold By Price
PoolSupply4Less
American Best Pool Supply
Swimming Pool Supply USA
Pro Pools

Product Details

Specifications

Details
Cabinet Depth 31.69 Inch
Cabinet Height 30.03 Inch
Cabinet Width 25.15 Inch
Control Type Digital
Flow Rate 120 gpm

Reviews From Real Customers

brenmcginni-0
mrbeegjr

20. Pentair MasterTemp 250K BTU Natural GAS Heater ASME 460771

Pentair MasterTemp 250K BTU Natural GAS Heater ASME 460771

Check Latest Price

Sold By Price
HD Supply
Pool and Spa Supply Store
American Best Pool Supply
PoolSupply4Less

Product Details

Specifications

Details
Gas Type Natural Gas
Control Type Digital
BTUH Input 250,000
Cabinet Width 23.02″
Cabinet Depth 32.61″
Cabinet Height 28.15″
Gas Connection 3/4″
Water Connection 2″
Voltage Rating 120/240 VAC
Frequency Rating 60 Hz
Phase 1-Phase
Flow Rate 120 gpm

Best Pool Heater For Inground Pool Buying Guides

Inground pool heaters – what to look for when choosing

When choosing an inground pool heater, there are several things to take into account. The first is the size of the pool. The heater must be large enough to heat the entire pool. The second is the climate.

In a colder climate, the heater will need to be larger to heat the pool. The third is the type of pool. An inground pool can be either a saltwater or fresh water pool. The type of pool will determine the type of heater needed.

The different types of inground pool heaters

There are three main types of heaters used for inground pools: gas, electric, and solar. Gas heaters use either natural gas or propane to heat the water, while electric heaters use electricity to heat the water.

Solar heaters use the sun’s energy to heat the water.

The benefits of an inground pool heater

There are many benefits to having a pool heater for an inground pool. A pool heater can extend the swimming season by allowing the pool to be used during cooler months. A pool heater can also make the pool more comfortable to swim in by heating the water to a comfortable temperature.

The cost of an inground pool heater

The cost of a pool heater for an inground pool can range from $500 to $3,000. The type of pool heater, the size of the pool, and the climate will all affect the cost of the pool heater.

How to install an inground pool heater

If you want to install a pool heater for your inground pool, you will need to purchase a heater and have it installed by a professional.

How to maintain an inground pool heater

To maintain an inground pool heater, you will need to:

– Keep the area around the heater clean and free of debris

– Check the heater regularly for any signs of damage or leaks

– Make sure the gas or electricity supply to the heater is turned off when not in use

– Follow the manufacturer’s instructions for any maintenance or servicing that is required

The pros and cons of inground pool heaters

There are several pros and cons to using a pool heater for an inground pool. Some of the pros include being able to extend the swimming season, being able to use the pool at night, and heating the pool to a comfortable temperature.

Some of the cons include the cost of running the heater, the potential for the heater to break, and the fact that the pool will cool down quickly once the heater is turned off.

FAQs about inground pool heaters

How do I know if my pool heater is working properly

If your pool heater is not working properly, you may notice that the water in your pool is not as warm as it should be. You may also notice that the heater is not running as often as it should be. If you have an electric pool heater, you may notice that the electricity bill is higher than usual.

Conclusion

Your conclusion should be based on the information given in the question.

Based on the information given, the pool heater for inground pool is most likely not working properly. The pool heater may need to be replaced.

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