Electric pool heater for 15,000 gallons: Top 5 Reviews and Guide

Electric pool heater for 15,000 gallons

Do you want to heat your pool? The water in your pool is too cold to swim, but you don’t want to spend a lot of money heating it.

With summer just around the corner, it’s time to start thinking about pool maintenance. If you have a pool that is over 15,000 gallons in size, an electric pool heater might be the best option for you.

If you’re looking for a way to heat your pool, an electric heater is the best option. They’re easy to install and use, and they can save you money on heating costs in the long run. But with so many different options out there, it can be hard to choose one that will work best for your needs.

That’s why we created this guide – so you don’t have to waste time trying every single product out there! We did all the research for you and found five of the top electric pool heaters available today.

The good news is that there are ways to heat your swimming pool without breaking the bank. One way is by using an electric pool heater which can be a much more affordable option than gas or solar heating systems.

And we even included a helpful buying guide at the end of our article just in case anything was unclear or confusing along the way! So sit back, relax, and let us do all of the heavy liftings when it comes to finding an electric heater that works great for your specific needs. You won’t regret it!

What to Consider When Buying an Electric Pool Heater

Before you run out and buy the first heater that you see, it’s important to do your research and find a quality product. There are several features that we recommend taking into account when choosing an electric pool heater:

Size/Capacity – Capacity describes how many gallons of water the heater can heat up. Make sure that your heater can handle the size of your pool before you buy one, otherwise it won’t be very effective.

Energy Efficiency – You want to make sure that you are spending as little money as possible on heating your pool, so an energy-efficient electric heater is a must! Look for units with high energy ratings and low wattage.

Shape – Do you need a round or square-shaped unit? What type of control panel does it have? These are all things you should consider when choosing an electric pool heater.

Price – The price of the product shouldn’t be the only thing that matters to you, but obviously if something is overpriced then it isn’t worth buying. Try to find a good balance between price and quality.

Solar vs. Gas – Solar pool heaters are an option that can sometimes be cheaper than gas heaters, but they’re also harder to install. Gas heaters tend to be easier to maintain and use less energy, so if you want the best of both worlds you might want to consider a solar/gas hybrid heater.

Pool Compatibility – Some heaters only work with certain types of pools, so make sure that your pool is compatible with the heater before you buy it. For example, if you have a saltwater synthetic pool then it might be easier for you to find a solar heating system instead of an electric one.

How We Selected Our List of Electric pool heater over 15,000 gallons

To create this list of the top five electric pool heaters, we looked at dozens upon dozens of customer reviews throughout the web. We also considered different types of websites and read countless articles to make sure that our information was as accurate as possible.

After a lot of testing and research, we were able to narrow down our list to the best electric pool heaters on the market today.

We took everything into consideration – price, efficiency, material quality, customer feedback, etc. – and came up with this list of top five products that you can use to heat your pool for better swims every day!

Now let’s take a look at our top five products!

1. Hayward W3H150FDN Universal H-Series 150,000 BTU Natural Gas Pool

Main Features:

Dimensions33.3 x 32.8 x 30.6 inches
Weight150 pounds
Heat ExchangerCupro Nickel

Hayward W3H150FDN Universal H-Series Pool Heater is the perfect choice for those who are looking to keep their pool warm during the winter months.

The natural gas-powered heater has a maximum heat output of 150,000 BTUs and is designed with an aluminum heat exchanger that will not corrode or rust over time. 

Hayward’s H-Series pool heaters are the right choice for pools and spas up to 400 ft. with natural gas available. The low environmental impact of this heater makes it ideal for pools and spas located where low-NOx emissions are required.

The heater’s efficient design reduces circulation pump run time to provide energy savings. The intuitive front control panel provides easy operation, service, and maintenance.


• The Hayward H-Series has been an industry standard for years.

• This heater may be a little pricier than some others, but it’ll pay for itself in heating costs over time.

• For those that don’t worry about environmental impact or energy efficiency, spend the cheapest on a lower quality product without breaking the bank.

• Along with these savings you’ll get easy operation and maintenance because of how common this type is within the market.


  • A little Costly.

2. EcoSmart SMART POOL 27 Electric Tankless Pool Heater

Main Features:

Weight‎24.2 pounds
Dimensions‎6 x 14 x 17 inches
Size‎17 x 14 x 5.5
Voltage‎240 Volts
Wattage‎27000 watts

Many people don’t know that the cost of heating a pool is one of the biggest expenses. If you have a gas or propane heater, then your costs will be high because these types of heaters are not efficient and burn through fuel quickly.

With this product, there’s no need for bulky tanks or costly installation fees. You simply plug it in and get instant hot water! It also has a built-in safety feature that prevents overheating when the pump shuts off so you never have to worry about damage due to power outages or other accidents!

EcoSmart’s 27kW, 240 Volt, 112.5 Amps with Self-Modulating Technology Pool Heater is compact and easy to install for a new or existing pool.

The EcoSmart 27KW is the perfect size for mid-size pools up to 20,000 gallons. This unit can be installed on an outdoor wall or indoors near your pool equipment location.


• Cut heating costs by up to 75%.

• Controls water temperature & energy usage with automatic or manual settings.

• Energy-efficient design for high performance without sacrificing safety.

• Enjoy easy maintenance and long-term savings.


  • Limited kind of customer support available.

3. Hayward W3HP21004T HeatPro 95,000 BTU Pool Heat Pump for In-Ground Pools

Main Features:

Dimensions40 x 31 x 43 inches
Weight270 pounds
Heat ExchangerTitanium

Hayward is a company with over 80 years of experience in the pool industry. They have been producing top-quality products for a long time that are guaranteed to last and provide many years of reliable service.

The Hayward W3HP21004T HeatPro 95,000 BTU Pool Heat Pump for In-Ground Pools is one such product.

This unit has an energy efficiency rating of SEER 13, which means it will save you money on your monthly electricity bills while also providing you with great heating power so your pool stays at the perfect temperature all year round.

It is a new generation of electric pool heaters. This unit is designed to operate with a variable frequency drive (VFD) and can be installed on any type of pool.

The EcoSmart Smart Pool Heater uses a titanium heat exchanger which ensures maximum heat transfer and provides excellent saltwater corrosion resistance. Its UV-resistant body panels are impervious to corrosion and deterioration, making it ideal for outdoor installations.

Hayward’s HeatPro 95,000 BTU pool heater is the most efficient and economical way to heat your in-ground swimming pool. The ultra-durable HeatPro 95,000 BTU gas heater uses a variable speed compressor that automatically adjusts for different water temperatures, saving you up to 40% on heating costs versus electric heaters.

Plus, HeatPro features Hayward’s exclusive Ultra Gold corrosion-resistant technology that provides unparalleled durability even in harsh coastal environments.


• Buy a heat pump that will take care of all your heating needs and keep you warm this winter.

• Unlike propane, Hayward’s HeatPro system is safe for coastal environments and won’t corrode over time.

• Your money goes farther because the unit uses gearless frequently than traditional systems.


  • Expensive.

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

Main Features:

Product Dimensions43 x 31 x 29.3 inches
Item Weight210 pounds
Fuel Type Gas Powered

The Raypak 266,000 BTU Digital Electronic Ignition Natural Gas Pool Heater is a great choice for pool owners who want to heat their pools in the winter months.

This unit can heat your pool with just one click of a button! The easy installation process makes this heater an excellent option for any size pool.

This product is perfect for all your hot tub needs. With a digital display that offers accurate temperature readings and an alert system, you get the peace of mind that comes with knowing your heater is functioning properly. Forget about worries like high-winds; we’ve got this thing contained.

Raypak pool heaters are the only digital gas pool heaters on the market, and they come in a sleek white design.

They have polymeric headers made from recyclable materials to make them environmentally friendly, and their shock-resistant plastic membrane forces hot water through your heater preventing rust build-up.

The digital thermostat will give you full control over when your Raypak gets cranked up or put back into low simmering mode.


• The LCD digital display provides accurate temperature, so you can enjoy your pool with confidence that it’s at the perfect temperature

• Monitors operational status as well as service diagnostics for worries free use

• High-wind resistance design makes this heater safe and reliable in any weather.


Costly but efficient.

5. Aquacal Heatwave SuperQuiet Icebreaker Heat-Cool Swimming Pool Heat Pump – SQ120R

Main Features:

Voltage 1 phase, 60 Hz., 208-230v

Aquacal Heatwave SuperQuiet Icebreaker Heat-Cool Swimming Pool Heat Pump is a pool heat pump that provides year-round heating and cooling for in-ground pools. This system can cool an entire pool by up to 18 degrees Fahrenheit when it operates in a reverse cycle.

AquaCal’s patented design offers many benefits over traditional systems, including no need for a compressor, low energy consumption and operation costs, and maintenance-free operation.

The Aquacal Heatwave SuperQuiet Icebreaker Heat-Cool Swimming Pool Heater is a pool heat pump designed to provide unlimited heating for your swimming pool.

The unit draws heat from the air, using an energy-efficient heat exchanger, and transfers it into the water via a high-capacity circulation pump.

This system circulates heated water through your pool’s plumbing system without requiring any additional equipment or complex installation.


• Give peace of mind that your pool has a warranty with Aquacal.

• Automatically adjust the heat pump to keep pools comfortable-eliminates the need for manual adjustments.

• Save money on energy costs by running less frequently and thus using less electricity.

• Stay up to date with technological advancements.


No cons.

Final Verdict

For many, the idea of a pool is something they only dream about. The thought of owning one seems like an unattainable luxury for most people, but it doesn’t have to be that way!

With this electric pool heater, you can enjoy your private oasis without breaking the bank. It’s perfect for those who live in warmer climates or want to get their feet wet before taking on something more permanent and expensive.

All the above pool heat pumps are recommended for your choice. Each has its pros and cons so you can select the one that is suitable for your needs.

We hope this article helps you to make a better choice in purchasing a brand new pool heat pump system. Good luck!

Rules For Sizing Your Heat Pump Pool Heater

With the purchase of a pool heat pump heater, it is important to have an understanding of how to correctly select the right size for your pool. This will ensure that you get quality heating and additional energy savings. Here are some quick guidelines for sizing a heat pump electric pool heater:

  • Size can be determined by calculating the heating needs of your pool.

• Choose a heater rated for approximately 5 to 10 degrees more than the highest expected average water temperature.

• If you live in an area with harsh winters, add about 2-5 degrees F to your average winter low temperature.

• A compressor heater must be sized according to its BTU rating which is generally found on the data plate or owner’s manual.

A rule of thumb is that a standard size 5000 BTU heat pump will lower the water temperature by about 3-4 degrees Fahrenheit when operating at full capacity in ideal conditions.

These guidelines are just that – guidelines. Please contact a professional installer before going through any sizing calculations and installations so that your comfort level is maximized while your energy usage is minimized.

What does the Ideal Solar Pool Heater System look like?

There is no such thing as a “perfect” solar pool heater system. However, you can certainly find one that works best for you and your family’s needs.

• It must be easy to install and require little maintenance.

• The installation should be cost-effective and affordable.

• The system needs to provide your pool with the most heat throughout the winter months.

Can solar panels be installed on separate roofs?

Yes. A lot of pools will have separate roofs for heating and cooling equipment. This is a great way to avoid the stress that comes from having everything in one system.

Some homeowners may also choose to have solar panels installed on a separate roof instead of their current pool heater’s roof. This can provide them with greater flexibility and freedom.

Do I need a booster pump?

If you have a larger backyard pool, a booster pump may be necessary for your solar heater to function properly. This is especially true when there is a large roof over the pool. The total gallons in the pool will determine whether or not it needs a booster pump and the size of that pump.

For standard-size pools, you can use a booster pump for either a solar pool heater or a gas heater.

FAQs Section

How long can you expect a pool heater to last? 

The life expectancy of a pool heater is generally determined by the quality of its parts. You can expect to get about 10-20 years out of your solar heater before it needs replacing, so long as it has been well maintained during that time. This means cleaning and maintaining the filters regularly.

What causes energy loss?

 A pool heater is very simple, but it must be understood that there are energy losses that will occur no matter what. Heat loss occurs when the surface of the pool is cooler than the surrounding air. This can happen at night or during cold temperatures.

How do you best maintain a pool heater? 

You should keep your pool heater as clean as possible at all times. This means cleaning and maintaining the filters regularly so that they can work properly and efficiently. These actions will ensure you get the most out of your pool heating system year after year.

How long does it take to heat an average-sized pool? 

An average-sized pool should be heated in about 24 hours. You can expect it to take longer during very cold temperatures or when the pool is larger than normal. The size of the heater and how well insulated your pool is will all play a role in determining heating times.

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