Best Pool Heaters of 2019

Top rated pool heaters for 2019

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So, which pool equipment manufacturer makes the best pool heater? If you’re looking for the best pool heater you can find in 2019, don’t miss out on this experts guide to the best selling pool heaters of 2019.

We Rate The Best Pool Heaters of 2019

Pool owners thinking of buying a pool heater need to do their research before buying for two reasons.

First, the pool heater is usually the most expensive piece of hardware for your pool. Secondly, even the best heaters can fail if the installation isn’t done right or water chemistry isn’t properly configured.

 

Select the best pool heater that suits your water chemistry but is also a high-quality product that’s built to last.

Your installation needs to be performed by a professional. So consider hiring a skilled and experienced pool contractor for that if you don’t know what you’re doing.

If you research the list of the best-selling products that are used and highly recommended by pool owners like yourself, you can find the best pool heater to fit the bill.

Here Are The Best-Selling Pool Heaters in 2019

 

Hayward H400FDN Universal H-Series

Hayward H400FDN Universal H-Series 400,000 BTU Pool and Spa Heater, Natural Gas, Low Nox

Hayward is the most popular brand in the pool heater industry. It’s no surprise that their H400FDN Universal H-Series is the top rated pool heater as well as our editor’s choice.

It is a standard cupro-nickel heat exchanger that offers the best value as well as reliability. The cutting-edge patented polymer header coupled with bypass valve design further increases the hydraulic efficiency.

Despite the extreme power and quick performance, the unit is extremely environment-friendly with low NOx emissions.

Being a gas heater with 400,000 BTUs, this is an extremely powerful unit and can heat up a 20000 to 40000-gallon pool very fast. Because of its immense power, it’s ideal if your pool doesn’t get a lot of sun.

To make sure you get the most out of your heater, it’s ideal to shut it off until the pool is balanced and clean. Moreover, consider covering your pool with a solar bubble cover when not swimming or you will lose a lot of heat and water from evaporation.

Iit is fairly fast for a gas heater. It can take between 12 to 18 hours to get your pool from 45 to 80 degrees.

Pros

  • Very fast for a gas heater
  • Can heat up to virtually any desired temperature level
  • Accurate, clear display
  • Very easy to use and program
  • Takes little to no effort to winterize and startup

Cons

  • Fairly loud, especially during the night

 

Intex Solar Heater Mat for Above Ground Swimming Pool

Intex Solar Heater Mat

This tiny piece of pool heating equipment is the best seller, and there are obvious reasons for that.

The Intex Solar Heater Mat is an eco-friendly heater based on the technology that can raise the temperature of your pool water up to 10 degrees Fahrenheit.

This heater is only ideal for small- to medium-sized above ground pools, i.e. up to 8000 gallons. It might not be ideal if the water flow rate is more than 2500 gallons per hour.

It’s extremely affordable so you may also consider getting two of these for better results. It’s ideal to use a solar pool cover with it.

These solar mat heaters are only ideal in areas where winter is mild i.e. where the temperature is 60-65 Fahrenheit. They can raise it to a more pleasant 70-75 degrees.

Pros

  • Very affordable – you can buy multiple heater pads for better results
  • Quick set up
  • Can raise the temperature up to 10F
  • Eco-friendly
  • No monthly cost

Cons

  • Not ideal for inground or larger pools
  • Doesn’t work in cold or cloudy weather
  • Can promote the growth of algae so you might have to chlorinate/shock the pool more often

Hayward HP21404T HeatPro Titanium

Hayward HP21404T HeatPro Titanium 140,000 BTU Heat Pump, Square

Yet another amazing product by Hayward is the HP21404T with acoustic compressor cover for the extremely quiet operation.

The hater is equipped with titanium heat exchanger that ensures maximum heat transfer. The body is extremely sturdy and corrosion resistant, so your heater will keep going for years to come.

Being a heat pump, it’s not only cost-effective but also extremely powerful. It can raise the temperature of a fairly large pool up to 10 degrees in just 2-4 hours.

Because of its intense power, it might be an overkill if you have a tiny pool.

Pros

  • Extremely powerful
  • Easy to install
  • Low monthly cost
  • Heats the pool water in no time
  • Sturdy build – can last for up to 10 years
  • Affordable as compared to most of its competitors

Cons

  • Fairly heavy

Pentair 460736 MasterTemp High Performance

Pentair MasterTemp 250,000 BTU Propane Swimming Pool Heater – 460733

This is a compact and quiet yet powerful natural gas heater for your pool or spa. The Pentair MasterTemp 400000 BTU work extremely fast.

The vendor has renovated the design, and the heater now comes with a tougher exterior and user-friendly digital control.

The unique technology that the heater is based on utilizes a fully pre-mixed system with extremely efficient gas and air mixture for a quick heat up.

This is one of the few natural gas heaters that are as easy to use as your home heating systems.

The heater is very eco-friendly and certified for low NOx emissions. The only issue with the heater is that the installation process is a little complicated while professional installation services can be pretty costly.

Pros

  • Very fast – can raise temperate up to 4 degrees in one hour in a pool as big as 15-20K gallons
  • User-friendly rotating digital thermostat is very accurate
  • Small footprint
  • Sturdy exterior thanks to the rust proof non-metal sheets

Cons

A little loud when in full swing

To get the warranty, you’ve to register within 60 days of installation

Verdict: It’s an ideal choice if you want a durable and fast heater that doesn’t make you break the bank but also don’t mind a little bit of noise.

 

SmartPool S240U Universal Sun Heater

SmartPool S240U Universal Sun Heater, 4 by 20-Feet (Renewed)

Another does solar heater based on amazing technology to keep your pool warm. Setting up the heater is pretty simple, and the installation manual is available in English, French, and Spanish.

Again, it’s a solar pool heater so don’t expect a rise in water temperature by more than a few degrees. However, in areas that have mild winter, this can prolong your swimming season by four to six weeks.

It’s ideal for medium-sized above ground pools. While it might not work very efficiently in harsh winter but if the temperature is close to 70, the SmartPool can raise it to a more pleasant level fairly quickly.

Pros

  • Great pool for the money
  • Easy to install
  • No monthly cost
  • Eco-friendly

Cons

  • Not ideal for larger pools or in very cold weather

 

Hayward H150FDP Universal H-Series

Hayward H150FDP Universal H-Series 150,000 BTU Pool and Spa Heater, Propane, Low Nox

This is yet another compact and elegant looking propane heater by Hayward. The design is so elegant that it looks like a small printer or a photocopier.

The standard cupro-nickel heat exchanger is ideal for efficient eating. The heater also features bypass valve design and polymer header, which increases hydraulic efficiency.

Just like most of Hayward’s other gas-based heaters, the H150FDP Universal H-Series is environment-friendly and ensures low NOx emissions.

It’s fairly easy to set up, and extremely fast. Powered at 150,000 BTU, it’s ideal for medium-sized in-ground as well as fairly large above ground pools. Consider covering your pool when you’re not using it to avoid heat loss or water evaporation.

Pros

  • Fast action
  • Ideal for big pools and fairly cold weather
  • Accurate temperature readings on the digital display

Cons

  • Makes a fair bit of noise

 

Hayward HP50TA HeatPro Titanium

HeatPro Above Ground Pool 50K BTU Heat Pump

This pool heat pump comes with all the amazing features of any Hayward pool heater. It has the ultra-gold corrosion-resistant evaporator fan, titanium heat exchanger, and double injection-molded UV resistant body.

However, it has something that most of its cousins lack.

And that is super quiet operation. Hayward has used acoustic compressor cover and profiled fan blades to make it their quietest heat pump available on the market.

The Hayward HP50TA HeatPro Titanium Is extremely powerful and offers 50,000 BTUs, however being a heat pump it is also extremely cost-effective in terms of the monthly bill.

Pros

  • Extremely powerful yet very quiet
  • Affordable price and cost-effective operation
  • Easy setup
  • Fast heat up especially for small to medium sized pools
  • Auto shut off when reaches the preset temperature

Cons

  • If not properly winterized, the body might start to crack

 

Jandy Pro Series JXi 400K BTU

Zodiac Jandy LXi LXI400PN 400K BTU Propane Gas Polymer Header Pool and Spa Heater with Cupro-Nickel Tubes Exchanger

The Jandy Pro Series JXi 400K BTU Low-NOx Natural Gas Swimming Pool and Spa Is one of the smallest pool heaters available on the market. It is about 38% lighter and 28% smaller than most of its competitors.

But that does not mean that this unit is not as sturdy or efficient as any of its competitors.

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Another amazing thing about the Jandy Pro heater is that it features an 83% thermal energy efficiency rating with low NOx emission. This makes the unit is extremely eco-friendly.

It has a unique heating mechanism, copper fin heat exchanger tubes, and blower-driven gas and air mix. It’s also very user-friendly, thanks to its digital control interface.

Pros

  • Quiet operation yet very powerful
  • One of the smallest and lightest pool heaters available on the market
  • Heats 20% faster than most of its competitors
  • Reasonably priced for the size

Cons

  • Setting up can be very complex for DIYers, or expensive if you choose the expert installation

 

Sta-Rite SR400LP

Sta-Rite SR400LP Max-E-Therm Pool And Spa Heater, Propane, 400,000 BTU

The Sta-Rite SR400LP Max-E-Therm Pool and Spa Heater is one of the lightest heaters available in its class. The compact design and 84% efficiency rating make it one of the most energy-efficient gas heaters available.

This is one of the very few heaters that look pretty elegant and have a rust-proof housing. It’s easy to set up, works pretty quickly, and can last for a long time to come.

Pros

  • Extremely lightweight
  • Fast heat up
  • 85% efficiency rating – doesn’t add too much to your gas bill
  • Elegant and rustproof body

Cons

  • Loud operation
  • Customer service can be hard to reach

 

GAME 4721 SolarPRO Curve Solar

GAME 4721-BB SolarPRO Curve Solar Pool Heater, Made for Intex & Bestway Above-Ground and Inground Pools, Includes Intex Adapters, 2 Hoses & Clamps

This is a unique curved shape solar heater that promises to increase Heat by 5 degrees Fahrenheit within 4 days. The vendor boasts durable construction and promises fast action.

Although the manufacturer claims that the GAME 4721 SolarPRO Is ideal for both in and above-ground pools, but in reality, it is only good for above ground pools.

If you plan to use it for your small in-ground pool, you might need multiple units. However, this will

not only need more space for the heaters but will also cost you more.

The unique curved shape would definitely help it capture more heat, even when the position of the sun keeps changing.

Pros

  • Affordable price
  • Unique design helps capture more sun
  • No monthly bill
  • Easy setup

Cons

  • Slow heating
  • Not the sturdiest of the units

 

The Best Accessories and Replacement for Pool Heaters

If you ever want to enhance your pool heater experience by adding more accessories or need replacement parts, here are some of the best options:

1. Blue Wave NE6171B Maxi Replacement Pump for Above Ground Pools, 1.5 HP

The Blue Wave Replacement Pump Is made of durable polymer, almost the same great quality that you would see in the best heaters by Hayward and Pentair. It’s a self-priming pump that comes with a clear lid for easy access and cleaning.

While some pumps only have either vertical or horizontal discharges, that’s pump has both and first most of the filter systems.

You will be amazed how quiet this pump is. Moreover, it’s one of the most affordable pumps available on the market. Remember, if you live in California, this pump is not legal for sale in your State.

2. Hayward FDXLBKP1930 Bezel and Keypad Assembly Replacement Kit for Hayward Universal H-Series Low NOx Pool Heater


This is a genuine Hayward product ideal for saltwater pool and chemical corrosion resistance. It offers great water velocity to all tubes and can up to 18% by reducing the run time of the pump.

Just like their top of the line heaters, this replacement kit for Hayward Universal H-Series ensures low NOx emissions.

We really liked how easy it is to install it, although you might have some trouble with the rubber gasket, but just a little bit of pushing around will help you get the holes aligned properly.

Remember, that this keypad is only compatible with the 28 inch IDXL2DB1930 display board.

3. Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems


If you own a Pentair MasterTemp pool heater and your stack flow sensor breaks, this replacement kit from the manufacturer can be an ideal choice.

However, this can also fit the models SR200, SR333, and SR400 for the Pentair Sta-Rite Max-E-Therm heater system.

Replacing the sensor is really easy, and you can do it yourself. However, remember that this can take a while if you don’t have any prior experience. Only choose the factory OEM parts when you are dealing with Pentair heaters because most other replacement parts might not be compatible.

4. Pentair 42001-0053S Electrical Systems Thermistor Replacement Pool and Spa Heater


If you have either Pentair Sta-Rite Max-E-Therm or MasterTemp electric heater, this is a thermistor replacement you should consider if you ever need one.

Although they rarely ever need to be replaced, when it happens, it can be a pain because your heater will stop working.

Symptoms that you need the thermistor are: you will see the temperature on the heater will start to shoot up to very high level all of a sudden, and the heater will stop turning on.

Fortunately replacing this part is extremely simple and all you have to remove is 3 screws and the appropriate cover. It shouldn’t take you more than 30 minutes, and your heater should be good to go again.

5. Pentair 42002-0007S Control Board Kit Replacement NA and LP Series Pool/Spa Heater Electrical Systems


If you have any MasterTemp NA and LP or Sta-Rite Max-E-Therm LA and NP series electric heaters, and your control board burns or breaks, this is the replacement you will need.

Replacing the board can be a little intimidating, though it’s not difficult at all. Even someone with limited knowledge of electronics should be able to replace the board in under one hour. Don’t forget to turn the power off before replacing the board.

If you are having trouble replacing it, there are many YouTube videos available to help out.

This is a genuine OEM replacement part and works as good as the original one that comes with your unit. However, before purchasing this equipment, please make sure you call their customer support to confirm that your symptoms confirm a board replacement is required.

6. Hayward IDXLTER1930 Heater Thermistor for H-Series Heater


This is an easy to install thermistor replacement for any H series heaters by Hayward. You’ll need it if your temperature sensor breaks and starts giving an error code.

You can install it within 20 to 30 minutes, even if you have no experience. And yes, it’s reasonably priced as compared to most other replacement thermistors.

It’s ideal to give the customer service a call and make sure this unit is compatible with your heater as it doesn’t fit a couple of H series heaters.

7. Smartpool EQTM2400NA Programmable Timer


This is an amazing little pool pump timer that’s compatible with most pool heaters. You can easily program the time your heater should turn on or off, in 5-hour cycles. We loved the easy, one-touch operation.

The cord is only 2 feet long, which is somewhat short but seems pretty sturdy. However, it might be a little hassle if you want to install it with you pool permanently – a 6-foot cord might have been ideal.

Still, this is an amazing accessory that will let you program the timing of your pool, so it gets warm when you need it automatically and still saves you a few dollars by turning it off when it’s not needed.

 

What Type of Pool Heater Should I Buy?

There are several different types of pools. Each has its own merits and issues. Let’s quickly review all of them before reviewing the top-rated items.

 

Solar Pool Heater

Just as the name suggests, this heater utilizes solar panels to capture energy from the sun and transfers it into your pool. These heaters work pretty slowly, and heavily depend on how bright the sun is. Their initial cost can be very high. But then there is no monthly cost, as well as little to no maintenance cost. Moreover, solar pool heaters are the best in terms of eco-friendliness.

 

Electric Pool Heater

These heaters run off of your electric connection. They are extremely fast and can offer quick heat up year round.

 

Electric Pool Heat Pump

These are innovative heaters that run off of your electric connection. However, they don’t produce heat but move it from the air in the surroundings to your pool. They are very long lasting and don’t increase your electricity bill by much.

 

Natural & Propane Gas Heaters

These heaters used to be very popular in the past. The increasing gas prices have decreased their demand nowadays. They use propane or natural gas. As the pump circulates water in the pool, it passes through the filter and then to the heater. The gas is burning in the heating chamber, and energy is transferred to the water. This water becomes hot and is then sent back to the pool.

Choosing the Best Pool Heater For You

To choose the ideal heater for your pool, keep these things in mind:

Select the Right Size

Before you begin, you need to find out the surface area of your pool. If you know how many gallons of water it has, that also works. Once you have this information, you can get a pool heater that yields enough heat.

The power of a heater is measured in BTUs (British Thermal units).

Consider How Fast You Need Your Pool to be Ready?

If you want your pool to get heated in a short time, you should look for a high power electric heater. If speed doesn’t matter, but you want to save some money on the monthly bill, solar could be the right choice.

What’s your Budget?

For pool heaters, there is an initial cost, and then there is a monthly bill. Usually, there is a tradeoff between the two.

Gas heaters are usually the cheapest, some costing around $1,000 while solar can be anything upwards of $3,000. Don’t forget the installation cost on top of it. However, in the long run, the solar will cost nothing, but gas heater might cost you up to $500 every month.

Size and Shape of Pool

Size and shape of the pool will also dictate the ideal type and power of your heater. Needless to say, larger and complex shaped pools will need a more powerful heater and vice versa.

 

Heaters for InGround Pools Vs. Above Ground Pools

The best heater for in-ground pool might not be a good choice for above ground pool. For instance, solar heaters are not ideal for in-ground pools because of their low power, Conversely, a powerful electric heater could be a huge waste of money for a small above ground pool.

 

Pool Heater vs. Heat Pump

Pool heat pump and electric heater both run on electricity, however, they are totally different products. An electric heater has a conventional way of generating heat from electricity by transferring heat from a hot coil into the pool water. Conversely, the pool heat pump generates heat from the air in the surroundings and transfers it into your pool water. The only thing a pool heat pump requires electricity is to run air compressor and other components. The initial cost of a pool heat pump might be more than that of an electric heater, but it can cost up to five times less than a gas or electric heater in terms of monthly cost. That means, in the long run, you’ll be saving a lot more. With proper installation and maintenance pool heat pumps can last up to 10 years or even more. This is considerably longer than their rivals i.e., gas heaters as well as electric heaters. Electric heaters are less expensive but cost more in terms of electricity bills. However, they have a smaller footprint and can also be used in indoor spas. Depending on your needs, you may choose one or the other. However, some people use both. They use gas or electric heaters for indoor pools or in winter and heat pump in autumn or fall.

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