5 Different Types of Pool Heaters: Which One’s Best?

Last Updated: June 5, 2021

If you might be looking to heat your pool, one of the primary issues you’re going to want to contemplate is what sort of healer he’ll use. There are 5 fundamental varieties of heaters, and we’ll talk about every of them for each above and beneath floor swimming pools. We’ll additionally discuss concerning the pros and cons of every sort of heater.

Keep studying for an in depth have a look at every of these heaters the place we discuss the price of set up, the price of operation, BTUs, and extra that can assist you make an informed buy.

Early Considerations

A heater can prolong the working season of your pool by permitting you to open it earlier and maintain it open longer into the chilly season. There are, nonetheless, some downsides to heating your pool. Let’s have a look at the professionals and cons.

Besides extending the pool season, heating your pool additionally permits you to preserve a extra comfy water temperature day by day. Heating will cut back the adjustment time if you get within the pool, and it may assist maintain the temperature even in swimming pools that get chilly typically do to shade or unseasonable local weather.

The draw back to pool heaters is that the hotter water will use chlorine a lot sooner. Algae and micro organism each like the hotter temperatures higher as effectively.


  • Extended pool season
  • Consistent temperatures
  • Reduced preliminary adjustment


  • Increased chemical use
  • Increased value
  • Risk of algae and micro organism development

5 Types of Pool Heaters

Let’s listing the 5 completely different varieties of heaters and the professionals and cons of every.

1. Solar Cover



The best and most cost-effective technique to warmth your pool water goes to be with a solar cover. A photo voltaic cowl resembles a big piece of bubble wrap that you just place over your pool immediately on the water like a canopy. The plastic bubbles focus the daylight and switch the warmth to the water, and one of these covers can warmth the pool by a number of levels on a sizzling sunny day. There is not any set up, and no price to make use of it when you’ve bought it. You can use a photo voltaic cowl on an above floor pool or an inground pool.

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There are two vital downsides to this sort of warmth. The first is that it requires a sunny day, and it’ll not heat your water on a cloudy day or at evening. The second draw back is that even with the pool filter operating, the hotter water will accumulate close to the photo voltaic cowl. This heat water pocket will destroy the chlorine in a short time and permit algae and micro organism to develop, which regularly results in cloudy water.


  • Inexpensive
  • No ongoing charges
  • No set up


  • Requires solar
  • Promotes algae and micro organism development
  • Can trigger cloudy water

2. Heat Pump

ComforTemp Swimming Heat Pump


Heat pumps are much like air conditioners, however they work in reverse. This sort of heater has the next preliminary value than many of the opposite varieties of heaters, however it’s extra environment friendly, and often cheaper to run from season to season and requires much less upkeep.  There are manufacturers of warmth pumps for above floor and in-ground swimming pools

The largest draw back to the heat pump is that it doesn’t work very effectively in chilly climate. It requires a temperature of 45 levels or extra to warmth the water. This sort of heater is nice in case you typically discover your pool somewhat chilly, however the temperature change is gradual, and it’ll not permit your pool to run year-round.


  • Less costly to run than gasoline or electrical
  • Efficient


  • Only works in hotter climate
  • Very gradual warming

3. Gas

Pentair MasterTemp 250,000


A gas heater will not be very completely different from a typical family water heater. This sort of heater is the best at elevating the temperature of your water. In some circumstances, it may enhance the temperature as a lot as one diploma per hour, and that is the very best sort of heater to make use of if you wish to run your pool year-round.

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The draw back to those heaters is that many inground swimming pools require you to hook up a everlasting gasoline line, and this can want skilled set up and a gasoline line close to your pool. Many above-ground heaters will run on propane tanks, however these would require steady changing and refilling. In each circumstances, the price of heating your pool will fluctuate from yr to yr, relying on the present gas costs in your space.


  • Fast warmth
  • Allows year-round operation


  • Requires set up
  • Fluctuating gas value
  • May require a gasoline line

4. Electric

Happybuy 11KW 220V


Electric pool heaters are one of the least costly heaters to buy and are much like the brand new tankless water heaters you may discover in a house. These electric heaters work nice to warmth your bathe, and they’d additionally do a superb job in a spa or sizzling tub, however swimming swimming pools typically comprise an excessive amount of water to heat on this approach, and the electrical invoice shall be very excessive. These models can solely enhance the temperature very steadily, even when used with a small physique of water. Electric heaters can be found for above floor and in-ground swimming pools,


  • Small dimension
  • Inexpensive to put in


  • Expensive to run
  • Only for small swimming pools
  • Gradual temperature enhance

5. Solar

SunHeater S120U


We’ve talked about photo voltaic covers, however one other sort of photo voltaic heater makes use of panels to heat the water. These solar heaters are usually not that completely different from the electrical heaters we simply talked about, however as an alternative of utilizing electrical energy, they switch the warmth from the photo voltaic panels into the water because it passes by means of the unit. You can set up the photo voltaic panels in a number of areas, together with the roof or on the bottom.

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The draw back to those heaters is that they may as soon as once more solely warmth the water somewhat and are much better for smaller quantities of water, or for elevating the temperature a number of levels in your pool. It may also solely work on sunny days, although it may nonetheless work in low gentle situations. In some circumstances, the photo voltaic panels can cost cells that permit heating to happen at evening. These models are additionally helpful for cooling down the water, if that’s what you want, by operating it at evening. While photo voltaic panel heating is obtainable for above floor swimming pools, we see it extra on inground swimming pools with the panels completely positioned on the roof.


  • No gas or electrical energy necessities
  • Multiple set up areas
  • Can cool water in addition to warmth


  • Gradual heating
  • Requires daylight
  • Better for smaller swimming pools


That covers the 5 other ways to warmth your pool. We advocate beginning with the photo voltaic cowl with the filter on to see if that delivers sufficient warmth. If you need to hit the pool year-round, you’re going to wish to go along with a gasoline heater. If you don’t have a gasoline line shut sufficient to your pool, you need to use propane. We additionally advocate propane if you wish to do the set up your self. If you’re solely seeking to heat the water a small quantity (and prolong your full season a number of weeks), any of the opposite fashions shall be glorious.

If we now have given you some new concepts, and you’ve got loved studying, please share this information to the differing types of pool heaters on Facebook and Twitter.

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