Best Natural Gas Pool Heater

The Best Natural Gas Pool Heater

If you are here, then you want to know about the best natural gas pool heater on the market today. Maybe you are planning to buy one to install in your swimming pool to ensure that you continue to enjoy warm water during the winter or chilly nights.

With thousands of these models on the market today, it can be hard to choose the best. That I where I come in handy since I have reviewed the top five heater that uses natural gas.

Let’s dive into their review.

Natural Gas Pool Heaters: Top 5 Reviews for 2020

Here are the best natural gas heaters that you can use to heat your swimming pool effectively.

1. Pentair 461059 MasterTemp Natural Gas 125K BTU Heater

The first product on my list comes from Pentair and is one of the most effective natural gas heaters you can get on the market. It provides up to 125K BTU to heat your pool or spa faster and give you quality time when swimming.

I like its beautiful design that makes it attractive, and you can easily install it without needing any professional help. It also made of rust and corrosion-resistant materials that ensure it works for pools with chemicals for decades.

Another thing I love about this unit is the cost. It is one of the most affordable products you can get on the market today.

You can have peace of mind knowing that your pool remains warm around the clock when you use this gas heater. And it was designed to convert more energy into heat to ensure that it uses less gas.

2. Hayward H150FDN Universal H-Series 150K BTU Pool and Spa Heater

Here is one of my favorite heaters, and it provides up to 150K BTU to keep your swimming pool ready for swimming sessions. Its heat exchanger is made of standard cupro-nickel that ensures it transfers more heat to the water.

The unit is quite reliable and has shown to provide value for the money since it lasts for years. Another notable feature is the bypass valve design and polymer header that offer maximum hydraulic for added efficiency. 

I also like its universal design as it makes it easier to install in your pool like a professional. It is also an environmentally friendly unit that comes with a low NOx emission cert that shows it meets the industry standards. 

The product is also quite affordable – you don’t need to break a bank when buying this natural gas heater.

3. Pentair 460736 MasterTemp High-Performance Eco-Friendly Pool Heater 400K BTU

Pentair 460736 is one of the most potent pool heaters on the market today and provides up to 400K BTU of power. It is also an environmentally friendly unit that you can use to warm your swimming pool and have peace of mind of clean air.

Another great feature I like of this model is the compact design that makes it small enough to fit in limited spaces. Besides, it often works without producing any sound, making it the ideal heater for a pool situated within residencia places.

The unit also comes with a low NOx emission certificate and lasts for years thanks to its rust-proof interior. There is also a rotating digital display that enables you to read the temperature.

The unit can serve a vast swimming pool and it comes from a trusted brand that has been in the industry for years.

4. Raypak 105K BTU Swimming Pool and Spa Heater

Raypak 105K BTU unit is designed to enable you install it without any hassle, and you can use it for spa and small inground pools. It comes with a 120v three-prong power cord and you can also change it into a 220v heater.

One feature that I find to be interesting is the simple analog thermostat that makes it easier to set the temperature. You can rest assured of perfect settings when you use this dial. 

The unit also connects to the gas source without any trouble since it comes with a universal fitting connection. It also saves you money since it doesn’t waste a lot of heat when transferring to the water thanks to a sufficient heat exchanger.

Besides, it is an easy-to-carry model that you can install without seeking any help. It offers value for money and was made to last for years.

5. C-R406A-EN-X Rudd Rheem Gas Pool Heater 406K BTU 

Another natural gas heater that has made it on my list is the C-R406A-EB-X Rudd Rheem unit. It provides up to 406K BTU to ensure that you get a warm pool that you can swim throughout the year without incurring much cost. 

The unit has cupro-nickel heat exchange that is so effective and guarantees high heat transfer compared to other materials. Another feature I love of this unit is the microprocessor-controlled thermostat that makes it easier to set the temperature and leave the heater.

You can also use a remote control to manage this heater, and the burners are made of stainless steel material. It is also powder-coated to ensure that it remains in top condition when under pool water that might have lots of chemicals.

Also, the unit comes from a reputable brand that has been around for years and shown to provide durable products.


Q: How Does a Gas Pool Heater Work?

A: A gas pool heater can use natural gas or propane to heat your pool. The gas gets burned in their combustion chamber to produce heat that is transferred to the water when it gets to the heater. That hot water returns to the pool.

Q: How Much Does a Gas Pool Heater Cost to Run?

A: A standard 400K BTU pool heater uses about four gallons of gas per hour to heat the water. At around $1.50 per gallon, the average cost to heat your pool for 60 minutes would be $7.00. 

Q: Which is Cheaper to Operate: Gas or Electric Heater?

A:  A gas heater can cost between $200 to $400 to run for a month while an electric one can cost around $100 to $200 per month. The electric model will be more expensive to install.

Q: Does a Gas Pool Heater Need Electricity?

A: A gas pool heater does not need electricity to operate. It is only an electric pool heater that uses power to heat your swimming pool.

Q: What Size Gas Heater Do I Need for My Pool?

A: Here is a guide to sizing your gas heater:

  • 100-200 BTU heater for up to 300 sq. ft. pool or 1,000-10,000 gallons
  • 200-300 BTU heater for up to 500 sq. ft. pool or 10,000-20,000 gallons
  • 300-400 BTU heater for up to 800 sq. ft. pool or 20,000-40,000 gallons
  • 400 BTU heater for up to 1200 sq. ft. pool or 40,000-80,000 gallons 


You don’t need to be a professional to ensure that you buy the best natural gas pool heater for your facility. There are a lot of models on the market today that you can choose from, like the one I have reviewed above. 

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