What is the best electric pool heater? The article looks at electric pool heaters to provide you with the information you require when buying one.
We have reviewed the top seven models on the market today and compiled a buying guide.

Top 7 Electric Pool Heaters Reviewed
Below is the review of electric pool heaters that can keep your pool warm.
1. Hayward CSPAX11 Electric Spa Heater
You can have peace when you opt for this heater as it is one of the most efficient units out there.
Specifications and Features
- Product voltages: 240V
- Brand: Hayward
- Material: Stainless steel
In-depth Review
The heater comes with an indicator light that alerts you when it is on. That ensures that you know when the heater is working and when it is broken.
It comes with a stainless steel tank that provides it with durability to last for decades. Its heating material comes with a safety sensor that ensures you remain safe when using your pool.
You can easily maintain the heater thanks to the simple access and internal controls. The heater comes from a reputable brand that has been around for years.
2. FibroPool FH 220 Pool Heater Heat Pump
It is the perfect model for inground pool and was made to last for decades.
Specifications and Features
- Product measurements: 35.2 x 21.2 x 13.33 inches
- Product voltage: 240V
- BTU: 20,000
- Brand: FibroPool
In-depth Review
The product can work effectively in coastal climates, making it ideal for Florida and other states. It is rated among the top heaters in its class when it comes to heating pools.
Another feature is the high heating capacity of 20,000 BTU that ensures you get a warm pool within minutes. You can also use it to warm your hot tubs and other water bodies.
It was designed to last for years and made of quality material that can withstand all climates.
3. EcoSmart US Pool 18 Electric Tankless Pool Heater
The system comes with a self-modulating technology that makes it a superb heater. Specifications and Features
- Product measurements: 6 x 14 x 17 inches
- Product voltage: 240V
- Brand: EcoSmart
In-depth Review
The product comes with flow activation technology that means it goes on when there is water. It is also a compact product that you can install in limited spaces and is ideal for most swimming pools.
You can set the temperature to increase by one degree or whatever figure you want to meet your needs. That gives you the freedom to set the heater and forget about it for long.
It also comes with a remote control that you can use to set it. The heater can also boost your heat pump or act as an alternative.
4. Raypak 017121 ELSR00051T1 Electric Spa Heater
It is a versatile model that you can use to heat your swimming pool or spa.
Specifications and Features
- Product measurements: 19 x 14 x 8 inches
- Product voltage: 240v
- BTU: 18,767
- Brand Raypak
In-depth Review
It is a model that meets all the state’s standards of a quality heater. The model boasts of the best titanium technology that allows effective heat transfer.
It also withstands harsh conditions thanks to the stainless steel material. That makes it the perfect model for use in saltwater pools and places with harsh conditions.
Another thing is the versatility it provides, making it the right heater for swimming pools and spas. It is among the most affordable products you can get on the market today.
The unit is also quite durable to ensure you get many years of service.
5. EcoSmart 5.5 Smart Electric Spa Heater
It is one of the most reliable pool heaters you can get on the market today.
Specifications and Features
- Product measurements: 5 x 11 x 12 inches
- Product voltage: 250v
- Brand: EcoSmart
- Warranty: Two years
In-depth Review
The heater comes with a two-year warranty that covers parts, except the heating element. You also get a 30-day return policy if the heater shows any defect within that duration.
It is among the most effective, reliable, convenient, and efficient heaters you can get on the shelves today. With this unit, you can swim in a warm pool and is perfect for above ground pool.
The other notable feature is the energy-saving ability. You can use it and be confident that you will not incur a lot of power.
Another great feature is the digital thermostat control that switches the power off when the pool gets warm.
6. Raypak 017122 ELSR00111T1 Electric Spa Heater
Are you looking for a pool heater you can use for years? Rayback Electric Spa heater might be the product for you.
Specifications and Features
- Product measurements: 24 x 20 x 15 inches
- Product Voltage: 240V
- BTU: 37,534
- Brand: Raypak
In-depth Review
The product uses the latest E3T titanium technology that makes it possible to heat a spa and pool. That heating element is also made of stainless steel material that can withstand saltwater pools.
It is the perfect heater to prolong your swimming season for a few weeks when winter comes. The heater also makes it possible for swimmers to swim during the night and have pool parties.
Another notable feature is the solid-state control that helps to minimize the noise. You can continue to swim while the heater is on and not get disrupted.
7. RayPal ELSR00111T1 Electric Digital Titanium Heater
If you want a durable heater, then you should try the RayPal Electric Digital Titanium model.
Specifications and Features
- Product measurements: 1 x 1 x 1 inches
- Product voltage: 240V
- BTU: 37,000
- Brand: Raypal, Inc
In-depth Review
With up to 37,000 BTU, the ELSR00111T1 is a heater that can warm your pool and prolong your swimming season. It is the ideal model for both the swimming pools and spas.
The product comes when ready to install, meaning that you do not need to waste time assembling it. It also requires less maintenance to give you more time for swimming.
The unit was built to last for decades using rust-free materials. It can give you value for bucks and the service you desire.
And it comes in an attractive design that makes your pool area look better.
Electric Pool Heater Buying/Buyer’s Guide

Although electric pool heaters look the same and can heat your swimming pool, they do vary in many ways. Some of these things include:
- Material: The heater’s body can be made of stainless steel, steel, aluminum, plastic, or composite. Its resistor or immersion element that warm the water can be made of titanium or stainless steel material.
- Shape: You can find straight heaters and L-shaped ones.
- The number of resistors: They often come with one or two resistors.
- Power rating: The power rating determines how fast the temperature can rise. Most electric heaters are between 3kW to 18Kw but can go up to 45 kW or rare 120 kW.
- Thermostat: It can be analog or digital (LCD) and is used to set the temperature.
- Minimum operating flow: You need to get an electric heater that is suitable for the present pool pump.
- Dimensions: The size varies depending on the power rating and the heater’s shape.
- Power supply: You can get a single-phase or three-phase heater according to the setup.
- Types of fittings: Some heaters attach to vertical support or walls while others rest horizontally.
Tips for Buying Your Heater

Here are four tips that can come in handy when choosing your electric heater:
1. Initial Cost
The initial cost varies according to the heater’s efficiency, features, size, and capacity. The important thing is to choose a system that meets your needs.
For instance, if you want to heat a spa or small pool, you should not spend over $1,000 for your heater. A large pool requires a more expensive model.
2. Operation Cost
It is more cost-effective to operate an electric heater than a gas pool heater. The energy usage can cost you about $600 per month.
If possible, choose a small device that will consume less power. But that might only work if you have a small pool. Know the amount you want to spend on heating your pool.
3. Environmental Impact
One thing about electric pool heaters, just like solar panels, is they do not emit carbon gas. That means they are eco-friendly compared to gas heaters.
With that said, ensure that you choose a heater that meets the industry regulation and your location.
4. Lifespan
Generally, electric pool heaters were not designed to last for a long time. They often last for about 5-10 years, but you can find a device that can provide service for over 15 years.
The material used and quality of construction matters when it comes to durability.
Frequently Asked Questions
Let us turn our attention to frequently asked questions about electric pool heaters.
Q: How to Wire an Electric Pool Heater?
A: Electric pool heaters come wired, and you only need to connect them to a power source. You only need to protect primary power supply lines with a fused disconnect switch or circuit breaker.
Q: How Much is an Electric Pool Heater?

A: On average, electric pool heaters go for $2,000. Then you can be charged anything from $500 to $1,000 to install them.
These heaters are more affordable to buy and install than a propane system, which is quite expensive.
Q: What Size Electric Pool Heater Do I Need?
A: The size of the electric heater you depend on various factors like the size of your pool, heating needs, BTU requirements, your area climate, and whether you use a pool cover.
With that said, you can heat your pool by 20 degrees within 12 hours using a 120,000 BTU electric heater.
Q: How Does an Electric Pool Heater Work?
A: The heater draws air in and moves it via an evaporator air coil. It meets the liquid refrigerant in the coil, where all the heat is drawn out and turned into a gas.
That gas passes via a compressor and add heated further. It then passes via the heat exchanger, with pool water, where it mixes with the water.
Making Your Decision
If you want the best electric pool heater, then you now have an idea of where to start. We have reviewed the top products on the market today and given you a buying guide to help you pick the ideal heater for your pool.