For someone who loves to go to the pool, the importance of having a pool heater can not become overemphasized. For a few people, swimming is a sport while for others, it is a recreational activity. In this article we reviewed the, best pool heater.That said, it can’t become disputed that going to the pool or spa is an excellent way to relax. Before jumping into a pool, it is wise first to observe the temperature of the water. It is the temperature of the lake that will determine how well you will swim and how long you will swim comfortably. 

Top 10 Best Pool Heater

  • Hayward H150FDP Universal H-Series​
  • Hayward H100 pool heater​
  • Pentair Pool Heater​
  • American standard safe t heater​
  • Hayward electric spa heater​
  • sta rite spa heater​
  • FibroPool FH055 In-Ground Swimming Pool Heater​
  • Ecosmart pool heater​
  • Happybuy Pool Heater​
  • Jandy pro series pool heater​


Hayward H150FDP Universal H-Series

Price$ $
Dimension45 x 6 x 7.5 inches
Weight9 pounds
Watt1500 Watt
Capacity400 Sq. Ft.
Power SourceElectricity 110-120 Volt

Hayward H100 pool heater

Price$ $ $ $
Dimension26.5 x 21.8 x 31 inches
Weight74.5 pounds
Capacity100,000 BTU
Power SourceElectricity 110-120 Volt

Pentair Pool Heater

Price$ $ $ $
Dimension36 x 25 x 30 inches
Weight128 pounds
CapacityNatural-175 BTU
Power SourceNatural Gas

American standard safe t heater

Price$ $ $ 
Dimension7.50 x 4.81 x 3.56 in
Weight1 Pound
Watt1500 Watt
Power SourceElectricity 110-120 Volt

Hayward electric spa heater

Price$ $ $ 
Dimension8.3 x 12 inches
Weight12.2  pounds
Watt6600 watt
Power SourceElectricity 220-240 Volt

sta rite spa heater

Price$ $ $ $ 
Dimension34 x 32 x 27 inches
Weight138 pounds
Power SourceElectricity 220 Volt

FibroPool FH055 In-Ground Swimming Pool Heater

Price$ $ $ $
Dimension48 x 20 x 24 inches
Weight120 pounds
Power SourceElectricity 220-240 Volt

Ecosmart pool heater

Price$ $ $
Dimension6 x 14 x 17 inches
Weight24.2 pounds
Watt27000 Watt
Power SourceElectricity 220-240 Volt

Happybuy Pool Heater

Price$ $
Dimension4 x 36.3 x 7 inches
Weight13,98 pounds
Watt11000 Watt
Power SourceElectricity 220-240 Volt

Jandy pro series pool heater

Price$ $
Dimension4 x 30.3 x 7 inches
Weight4.8 pounds
Watt500 Watt
Capacity100 Sq. Ft.
Power SourceElectricity 220-240 Volt


whether in-ground or above-ground There are different types of pool heater in the market. Your choice will depend on what you have and what you want from the heating device. It is not easy to choose a pool heater, especially when you do not have an idea of what it looks like and its operating principle.

We have created this guide to solve that problem. This guide will clear all your doubts and give you a perfect understanding of what is

necessary for a pool heater. If the temperature of the pool is high, consider bringing it down to an appreciable level. If it is too low, you may have to raise the temperature a bit. The only way to do this is by using a pool heater. A pool heater is a device that can bring about an appreciable increase in the temperature of a pool for added comfort and convenience. These devices have a good design and get powered by several means. Regardless of the dimension and orientation of your pool, there is a pool heater that will work for it. Heatercamp

1. Hayward H150FDP Universal H-Series 150,000 BTU Pool and Spa Heater

This appliance is a square-shaped heat pump. It can generate heat up to 50,000BTU. It features stainless steel hardware, polyethylene screen, quiet scroll-compressors, and body panels that are resistant to ultraviolet rays. This unit works well for new pools and existing water bodies. To get the best out of this heater, make sure you read the user manual. It is a durable pool heater that weighs 190 pounds. This pool heater has a dimension of 31 x 40 x 35 inches. The Hayward HP50TA works well for an 18000-gallon pool. It works for in-ground and above-ground pools. It works well in both hot and cold weather conditions. After purchase, make sure a qualified technician does the installation. This fact will help to guarantee the safety and protect the unit from damage.

  • Pros
  • Easy to install.
  • Easy to maintain.
  • Value for money.
  • Reasonable price range.
  • No noise in operation.
  • Cons
  • No warranty guarantee.
  • Incomplete installation kit.
  • Quite big.
  • Not fast-warming.

2. Hayward pool heaters | Hayward H100IDP1 H-Series 100,000 BTU

This heater functions optimally in all weather conditions. It has an electronic direct spark ignition which makes it easy to start. This unit can produce heat output up to 100,000BTU. We recommend that you use this heater on pools that are not up to 450 sq. Ft. Also, please do not attempt to install it at an elevation higher than 2,000 feet above sea level. The manufacturer has not designed the Hayward H100IDP1 H-Series pool and spa heater for commercial purposes; it should use only for residential purposes. It can plug into a 120V electrical outlet, and its weight is 79 pounds. This heater has a dimension of 26.5 x 30.5 inches. A 1-year warranty backs the unit, and it is cool to the touch. It does not have high and low flow speeds. If you have a swimming pool or spa at home, give purchasing this unit serious consideration.

  • Pros
  • Easy to install.
  • A warranty backs it.
  • High efficiency.
  • Reasonable price.
  • Easy to maintain.
  • Cons
  • Leakage concerns.
  • Not durable.
  • No digital controls.

3. Pentair Pool Heater | Pentair 460736 MasterTemp

This pool heater runs on natural gas, and it can produce heat up to 400,000BTU. It is a durable and high-performing unit. It has digital controls. Hence, temperature adjustments can become made quickly. It features indicator lights for proper monitoring and operation of the unit. It has an impeccable design which adds to your pools aesthetics. The heater also has a water pressure switch and a manual gas shut-off.  Another safety feature incorporated in its design is the stack flue sensor which prevents the heater from overheating. This product is certified safe, produces no dangerous emissions, and it meets all quality control requirements. A rotating digital display is also in place. The weight of this heater is 120 pounds, and its dimension is 29.9 x 36.1 x 22.8 inches. It works well for a 30,000-gallon pool. It also works for saltwater pools and other types of pools. More importantly, this heater is an eco-friendly unit.

  • Pros
  • Compact unit.
  • Quiet in operation.
  • Digital control and display.
  • It does not emit radiation.
  • Safe for use.
  • Cons
  • A bit challenging to connect to water supplies.

4. American standard safe t heater | American Standard 9075120 Safe-T Heater

This appliance is a well-crafted pool heater. It is UL approved, and electrical requirements are 120V, 15A. This heater is compatible with American standard whirlpool tubs, and it is straightforward to install. It weighs 1 pound. Hence, it is incredibly lightweight. A limited lifetime warranty backs it. The heater does not make use of batteries; instead, it connects to an electrical outlet. The dimension of the product is 7.50 x 4.81 x 3.56 inches. It runs at a constant temperature and keeps water warm for an extended period. It features a unique end flanges. This heater is fit for any pool, Jacuzzi tub, or spa. It is important to note that this heater does not offer overheat protection.

  • Pros
  • Very lightweight.
  • Aesthetic design.
  • Easy to install.
  • Reasonable price range.
  • Cons
  • No overheat protection.
  • No temperature adjustment.
  • Not fast-warming.
  • Not versatile since the company has made it for American standard whirlpool tubs.

5. Hayward electric spa heater | Hayward CSPAXI11 11 Kilowatt

This component is an electrically powered unit. It is a compact heater with a stainless steel tank and a safety sensor electric heating element. This heater is a space-saving heater that you can use for all types of swimming pools and spas. It also has an indicator light and a stainless steel threaded head. The Hayward CSPAX111 Electric Spa Heater is very easy to install. It weighs 12.2 pounds and a product dimension of 8.3 x 12 inches. This electrically powered heater can raise the temperature of a spa up to 40 degrees Celsius. Minimum electrical requirement is 5.5kW, 240V. It is not suitable for saltwater. If there is a fault, you can rely on an efficient customer support team. The heater is easy to repair, it has a simple design, but it is a powerful unit. This pool heater works well for a 2500 gallon pool. A 1-year warranty backs it.

  • Pros
  • Moderately priced unit.
  • Easy to repair.
  • Easy to install.
  • Great customer service.
  • High heat output.
  • Cons
  • Not durable.
  • Not fast-warming.

6. sta rite spa heater | Sta-Rite SR333NA Natural Gas, 333,000 BTU

This heater runs on natural gas, and it can produce heat output up to 200,000BTU. It has key features such as LED temperature readout, weather-proof frame, smooth controls, and attractive design. The manufacturer has made for indoor and outdoor pools. The unit also has dual thermostat controls, PVC union connections, and a 6-position control panel. It does not produce any dangerous emissions, and it is certified safe for residential use. It has a cupro-nickel exchanger that improves the heater’s ability to withstand harsh conditions such as high flow and low pH. Efficiency rating is 84%, and it has a rustproof housing. The design of the heater is both sleek and compact. The weight of this heater is 131 pounds, and this makes it extremely lightweight. The dimension of this product is 34 x 32 x 26.8 inches. It is suitable for saltwater use, and it is economical to operate. The unit does not make use of a battery. Users can use it for in-ground and above-ground heaters.

  • Pros
  • Lightweight and compact.
  • Space-saving and portable.
  • Value for money.
  • Inexpensive and affordable.
  • It Produces enough heat.
  • Low energy consumption.
  • Cons
  • Not particularly durable.

7. FibroPool FH055 In-Ground Swimming Pool Heater

This heater has an output of 55000 BTU. It is made to provide heat to both above-ground pools and in-ground pools. Using this heater is an excellent way to bring down the cost of energy and electricity. This unit runs on a 12 gauge, 220V circuit and it has a coefficient of performance of 5.92. It features a digital display for easy adjustment of temperature settings. It has a weather-proof case and a sleek design that fits perfectly into your existing swimming pool décor. The heater is eco-friendly and very easy to install. Another advantage of this heater is that it has different mounting options. The weight of this unit is 120 pounds while its dimension is 48 x 20 x 24 inches. It is very versatile and can fit into any pool pump. The heat exchanger made from 100% titanium.

  • Pros
  • Easy to install.
  • Easy to operate.
  • Rugged design.
  • High efficiency.
  • Great heat output.
  • Reasonable price range.
  • Cons
  • Not fast-warming.
  • Worries about shipping conditions.

8. Ecosmart pool heater | BEST POOL HEATER

This heater makes use of self-modulating technology. It is a well-designed and wonderfully crafted pool heater. Its minimum electricity requirements are 27kW, 240V, 112.5A. It uses the latest flow sensor technology. Hence, the traditional pressure switch activation gets eliminated. This heater is a durable and reliable unit. It also lasts long. It features a digital timer that allows you to set temperature by increments of degree. Users can operate it remotely, and it can serve as a secondary source of heat. The size of this unit measures 17 x 14 x 5.5. Therefore, it does not take too much space. Its weight is 24.2 pounds. It does not make use of batteries since it can get plugged into an electrical outlet. A 2-year warranty backs the unit. The warranty does not cover the heating elements. This pool heater is CSA, UL and ETL certified. Maximum pool size for the heater is 11,000 gallons.

  • Pros
  • Digital and remote control.
  • Very efficient.
  • Saves energy and water.
  • Heat output is high.
  • Low electricity consumption.
  • Sturdy and well built.
  • Cons
  • Corrosion and rust.
  • Inconsistent heating.

9. Happybuy Heater | Happybuy 11KW 220V Pool Heater

Before using this heater, ensure proper grounding and insulation. It has a temperature switch that automatically shuts down the system whenever there is an unexpectedly high temperature. To ensure maximum effectiveness; the circulation pump should be turned 120 seconds before the heater gets powered-on. It does not make use of a traditional magnetic flow switch; instead, it makes use of a temperature sensor. This unit can serve as a secondary heat source. It works well for small pools and spa. The body of this heater made from aluminum. Its minimum electrical requirements are 50A, 220-240V, and 11kW. It does not make use of a battery, and the heater weighs 16.64 pounds. The size of the unit measures 23.2 x 15.3 x 4.7 inches. It is safe for use for both in-ground and above-ground swimming pools.

  • Pros
  • Value for money.
  • Easy to install.
  • Self-modulating unit.
  • Fast warming unit.
  • Price is good.
  • Cons
  • The user manual is not easy to comprehend.

10. Jandy pro series pool heater | Jandy Pro Series JXi 400K BTU

This heater runs on natural gas. It can deliver heat output up to 400,000BTU, and it has a compact design. The user manual is straightforward to comprehend, and the unit is very lightweight. It is energy-efficient, space-saving and offers plumbing flexibility. The thermal efficiency rating for this heater is 83%. It does not emit any dangerous gas, and it is easy to maneuver. The weight of the heaters is 151 pounds. Its size measures 40 x 24 x 28.5 inches. Upon installation, this heater is fairly easy to control. It makes use of the latest trends as far as pool and spa heating is concerned. This unit is not loud at all.

  • Pros
  • Price range is okay.
  • Enough heat production.
  • Saves-energy.
  • Space-saving and compact.
  • Easy to maintain.
  • Cons
  • Does not work well when the pH level is low.
  • Not very durable.

Frequently Asked Question

The size of the heater you need for your pool depends on the size of the lake. Generally, for a pool size between 1,000 gallons and 10,000 gallons, we recommend a 100-200BTU heater. If the size of the pool is between 10,000 gallons and 20,000 gallons, we recommend 200 – 300BTU heaters for an 800 sq. Ft. Swimming pool, a 300 – 400BTU heater is okay.

We have reviewed several brands and several types of pool heaters in our top ten picks. Any of the heaters mentioned above are okay.

The installation price of a pool heater depends on the type of heater. The cost of installation should be between $500 and $1000. Your location and installer could also be a determining factor.

Anywhere. You can buy a gas water heater anywhere, electrical, and home heating appliances are sold. They are also readily available in online and retail stores. You can also make your purchase from a mall or a supermarket.

Under normal conditions, a pool heater should last between 7 years and 15 years. However, the frequency of use, the chemistry of the pool (pH value, flow rate, and many more.), and type of heater are all essential factors.

Pool heaters can be purchased online and from retail stores and supermarkets. They are not hard to find. If you place an order today, it will get delivered to your doorstep in a matter of days.

The price of a pool heater depends on a series of factors such as demand for the heater, cost of production, key features, and supply of the product. The level of acceptance the product receives from the general public is also a factor.


Solar pool heaters:

Just as the name suggests, solar pool heaters transform energy from the sun into useful heat through a solar panel. These heaters do not cause any damage to the environment. Long term, solar pool heaters save you more money than other pool heater types. The major drawback of a solar pool heater is that it becomes useless when there is no sun.

Electric heat pumps for pools:

Generally, they do not have a source of heat. Instead, they preserve the temperature of the lake by making use of the warmth of the surrounding air. They are less costly than another type of heaters. Their installation is a bit simpler too. The downside is that they are not fast-warming.

Gas pool heaters:

Liquefied petroleum gas and natural gas are used to power these types of heaters. The choice of these two gases is because of their particular physical and chemical properties. Research and market survey has shown that natural gas is less expensive than propane. The chemical energy in these gases gets converted to heat energy, which is then transferred by circulation. These gases get burned in a combustion chamber. Gas pool heaters are ideal for large pools because they are more powerful to work. They are also fast-warming and tend to last longer than another type of heaters. They have a higher long-term cost, however.

Pool heaters are classified based on their power source. Instead of this, we have three main classifications – gas pool heaters, solar-powered heaters, and electric heat pumps.


Here are some of the things to look out for before paying for a pool heater.


This has to do with the appearance and attractiveness of the pool heater. There are many beautiful designs out there. So, why buy an ugly unit? A right pool heater should fit into your existing pool décor. It must combine style, elegance, and flamboyance. Eye-Catching design gives people something to talk about, and it gives your pool a bit of class. The model has to do with the color, shape, and dimension of the pool heater. Be sure to put all these into consideration before making a decision.


The size of a pool heater is also essential. You should choose a portable one from the available appliances in the marketplace. Cause a bulky is not an ideal to buy. Mobile types are handy and tale small space, which is helpful for the users.

Therefore, the heater can easily be put aside when it is not in use. A small pool heater also makes it easier to maneuver and transport a pool heater. If it is overly prominent, this will not be easy to do. Moreover, the size of a heater does not determine how effective it will be. There are several small but efficient heaters out there.

Heat output:

A right pool heater must be able to raise the temperature of a pool substantially since that is its primary responsibility. If it is not able to do this, do not buy. A right pool heater should warm the water in a pool with minimal input. This matter is called efficiency. There are so many wonderfully packaged pool heaters in the market that underperform. Look out for the output rating of any heater before you pay for it. This fact will save you a lot of money and stress eventually.


The ease at which a pool heater can get installed should become included in your decision-making. Equally important is the cost of installation. There are a few pool heaters that you can assemble and install by yourself. There are also a few others that will require the attention of a qualified technician. On the other hand, some pool heaters require a few hours to install while some can get installed in a jiffy. These are the things that determine the cost of installation. If you have to pay too much to set up the unit, reconsider your stance.

Energy consumption:

Energy consumption has to do with how much gas or electricity the pool heater needs to bring about a degree change in temperature. It is about the cost of operation of the pool heater. If the heater gulps too much electric current, it will have an impact on your electricity bill. Consequently, you would have to pay more and save less. In the same vein, if a pool heater uses too much gas; your savings will get depleted. A right pool heater characterized by low energy consumption and low cost of operation. Buy a pool heater that will help you save money.


Safety is one of the most important things to look out for before buying a pool heater. It is about the security of lives and exposure to risk and danger. UL, ETL, and CSA must certify a right pool heater. This matter the appliance has passed in all safety and quality control tests. Some pool heaters are fire hazards and capable of causing an explosion. Do not choose these types of pool heaters. They will expose you, your family, and guests unduly. As they say, safety begins with you.


The decision on which pool heater to buy is not an easy one to make. It requires knowledge of the product and a bit of research. If you do not bridge this knowledge gap before paying for a pool heater, you will make the wrong choice. Regrettably, making a wrong choice has financial, economic, and safety consequences. To prevent this scenario, we have prepared this comprehensive guide. It contains all you need to know about a pool heater, its mode of operation, types, as well as the best products in the market.

Reading this article will save you much time in the long run. It will also save you much money, and it could be a life-saver. The ten products discussed in this text are some of the most reliable and best-selling products in the market. These products have also received rave reviews from present users. If you feel you have other options, make sure what the product offers is in line with the critical features outlined here. Do not buy a pool heater blindly. Please read about the product and what others are saying about it.