Home Buying Guides

Swimming Pool Heat Pump and Pool Heater Comparison Guide

Have you been thinking about purchasing or replacing a swimming pool heater or heat pump, but you’re not sure which option is best? To help you make an informed decision, we’ve put together some information, including a comparison guide, to make it easier to decide which choice is best for you.
First, you should consider where you live. For heat pumps to work properly, they need to be in an area where the air temperature is about 45 degrees Fahrenheit or higher year around. This is because heat pumps operate by drawing in outside air and converting it to heat. For heat pumps, the higher the air temperature, the more heat they can extract and convert into warmer water. On the other hand, a swimming pool heater can be used anywhere, regardless of climate.
Next, one of the most important factors when choosing between a heat pump and heater is the purchase price and the cost to operate. The pool heat pump has a much higher upfront cost than a pool heater. However, if you were to purchase a pool heat pump, the money you invest on the front end will pay off over time because a heat pump uses half the amount of gas to get the same BTUs than a pool heater and about a quarter of the amount of electricity as an electric heater. So, if you’re going to be operating your swimming pool’s heat pump constantly, it will more than pay for itself over time when you compare it to a pool heater’s capabilities.
The installation of a pool heater varies depending on if it’s a gas or propane heater. Be sure to factor in the cost of running a gas line to the unit when considering your pool heater purchase; that way you are not caught off guard when you receive the quote for installation service by a professional. Also know that electric pool heaters and pool heat pumps require electrical wiring be run to the unit. So, be sure to include the cost of that installation service as well when budgeting for this purchase. Finally, note that electrical wiring installation does typically cost less than a gas line.

Swimming Pool Heat Pumps:

Swimming Pool Heaters:

 heat_pump  heater
Pros: Pros:
  • Much lower operating costs
  • Better for the environment
  • Inexpensive and easy-to-install
  • Can be used in any environment
  • Electric heater is inexpensive and easy to install
  • Lower purchase price
  • Offer more units with higher BTUs
Cons: Cons:
  • Requires proper air temperature
  • Higher initial cost
  • Cost more to operate
In our estimation, a swimming pool heat pump is the most efficient way to heat your swimming pool, assuming you have the right weather conditions. Even with the higher initial cost, the long term effects on your wallet and on the environment are worth the investment.
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  • Joanne

    We live in Rochester, NY so don’t use the pool year round. Would a heat pump still be a better choice for our 17 x 32 inground pool?

    • PoolSupplyWorld

      Hi Joanne, thank you for your question. A heat pump is a great option for those who live in cold states, when they only use it during the warmer months. Heat pumps take the outside air temperature to heat up your pool, so it is important that the ambient temperature when you want to use your pool is 50 degrees or above. Please let us know if we can answer any other questions, we’re always happy to help!

  • chuck

    i ive in massachusetts and was ready to buy a pool heater, recomended by my pool installer, i was going to purchase a raypak 400,000 heater. the cost for propane tanks and installation was going to be another 900.00. i also have friends that have pool heaters with propane….but you have me intrigued about the heat exchangers. does it make sense for my 19 x 38 inground pool with 25,000 galons to go with a heat exchanger? why would i do this over a heater? why doesnt my pool installer recomend this? which model would you recomend for me? and last question…is it quiet? my deck area is close to my equipment area so i didn’t want it tto be too loud.

    • PoolSupplyWorld

      Hi Chuck, thanks for your excellent question. A heat pump will keep your pool warm during the summer season. As long as your ambient temperature is above 55 degrees, including during the night, a heat pump will be a great option for your pool. You will want to purchase a heat pump with at least 300,000 BTU. However, if you are looking to extend your swimming season by a few weeks in the spring and a few weeks at the end of the summer a gas heater would be a better option. You will want a heater with at least 140,000 BTU. We would be more than happy to make a recommendation for you if you’d like to give us a call, and you’re always welcome to check out our great selection of Pool Heaters and Pool Heat Pumps.

    • Anonymous


  • Dana

    have a small pool about 28′ x 12′ with an attached spa. I think overall gallons is less than 14000 gallons. I live in southern California, in San Diego county. A few weeks ago I was convinced that I was going to get a heat pump for my pool. But my pool guy said he didn’t recommend a heat pump anywhere in San Diego because he said it requires humidity for it to be efficient. Is that true? I thought it just had to be over 50 degrees to transfer the heat. If that’s true, then what other type of heating equipment do you recommend? I wanted to stay away from gas heater because of the expense. And we’re installing a solar heater for our house so I don’t know if there’s going to be any more room for our pool. Any suggestions? Thanks!

    • PoolSupplyWorld

      Hi Dana, thank you for your excellent question. Humidity does have an effect on the efficiency of a heat pump, however it is not that great of an influence. The biggest contributor to the ability of a heat pump to work is the air temperature. Many of our manufacturers have heat pumps being used in the San Diego area and they work without a problem for most of the year. Please let us know if we can be of any further assistance.

  • dexter

    I am purchasing a 20×40 standard diving pool and can’t decide what type of heat is best for me. I live in eastern KY and would like to extend the pool season by at least a month in Spring and Fall. I know we have 50+ degrees through the day but the night can drop below 50 degrees. Is the heat pump best suited for me? Another factor is natural gas prices. I get a special rate of $4.50 per 1000c cubic foot. One more question…what btu of each would you recommend? Thanks!

    • PoolSupplyWorld

      Hi Dexter, a gas heater could certainly extend your swim season in the Spring and Fall, but, based on the information you provided, we would not recommend a heat pump; heat pumps are designed to transfer the heat in ambient air to your swimming pool, and if it working with 50-degree temperatures (or lower), it will not be able to heat your pool adequately.

      For your pool size, and to maintain a water temperature of approximately 75-80 degrees, we recommend you choose a heater that gives you at least 350,000 BTU, as anything smaller would require you run your heater constantly, during the cooler months, to achieve only small increases in your water temperature. The Jandy Legacy LRZ 399,000 BTU, Digital, Natural Gas, Polymer Headers Pool and Spa Heater should provide you the BTU necessary to extend your pool season by one moth on either end, as well as the performance and reliability that has come to be expected from Jandy, the top selling brand of pool heaters.

      If you have any further questions about pool heaters or heat pumps, please feel free to contact us, and one of our customer service representatives will be happy to help you find a heater that is right for you.

  • John DiVito

    Your comparison was convincing to buy an electric heat pump. Which one should be the best all around choice, please?

  • gary cotter

    we have a in ground public pool 50 ft x 80 ft. x ave dept 4 ft-Water capacity about 120,000 gal. One of our existing propane heaters died a naturasl death. lol The age of our public pool calls for a new pool in about two yearss hope fullly), lots of money to replace. So the ideal is to relocate the replacement heater that we have to purchase to use with the new poojl. Any ideals would be most helpful. Thank you, Park Board Director, Gary Cotter

    • PoolSupplyWorld

      Hi Gary, thank you for your great question regarding your commercial pool heater. It is usually a good idea to replace your heater with the same model of heater. By doing this, you can ensure that you will not need to make any modifications to your plumbing. With the information that you provided, we would recommended purchasing a Raypak Digital ASME 399,000 BTU Propane Gas Commercial Pool Heater. We would be happy to help you place your order if you are interested in purchasing this heater.

  • Allan Purdie

    In reveiwing heat pumps I have discovered that there is alot to choose from I am also concerned about the size of my pool which is about 25ft by 50ft. Which heat pumps are best? I don’t mind spending a little more to be satisfied in the long run. But in shopping on line it is difficult to get through the advertising to actually obtain hard objective data. Please help me make my decision.

    • PoolSupplyWorld

      Hi Allan, thanks for your question about heat pumps. Your pool is considered large at 25’ x 50’ and would require a minimum of 135,000 BTU to heat your pool ½ degree per hour. We highly recommend the Jandy EE-Ti 140,000 BTU. It’s efficient, reliable, and uses minimal energy to operate. Equipped with a control panel with timer function, you can have full control over your temperature. The Jandy EE-Ti 140,000 BTU has a Coefficient of Performance (COP) of 6.1 under 80/80/80 testing conditions (we have an excellent blog on the Language of Heat Pumps if you would like more information about COP and testing conditions). This heat pump has a hot gas defrost mode, which allows it to operate when temperatures drop as low as 38 degrees. Conversely, it also has a hybrid chill mode which essentially reverses the function of the heat pump and cools pool water during heat waves. Please contact us with any other questions, or give us a call and we’ll be more than happy to assist you in placing an order. We are available by phone from 5:30 am to 5:30 pm PST.

    • Rae

      I wouldn’t buy a heater with a chill mode, unless you live in the tropics. I was in SW Florida in the middle of July (hot weather), and my pool felt cool enough. I don’t think the added expense to cool a pool for the one or two days that it’s super hot outside is worth it. Also, have you an opinion on the Aqua Cal SQ 110?

    • PoolSupplyWorld

      Hi Rae, thank you for your input on pool heaters with chill mode and your question about the AquaCal SQ 110. The Aqua Cal SQ 110 is ideal for ultra quiet operation, and offers a high efficiency rating for cost effectiveness; it is built to operate with 100,000 BTU while heating 30 to 70 gallons per minute. If you would like more information on the AquaCal, we highly recommend contacting AquaCal at 727.823.5642. Please let us know if we can be of any further assistance.

  • Tyler Smith

    Why must the temperature be above 45 degrees year round to run a heat pump? If I use it only in the summertime, what difference does is make how cold it is in the winter?

    • PoolSupplyWorld

      Hi Tyler, if you are only operating your heat pump in the summer months, you do not need to worry about the air temperature in the winter, aside from being sure all water has been removed from the heat pump and blown out of the lines, so as to prevent freezing. A heat pump, generally, cannot operate in sub-45 degree temperatures, though some, such as the Jandy EE-Ti 120,000 BTU Heat Pump, 6.3 COP, 410A, 230V/60Hz/1 Phase, Heater, Titanium, Digital, can operate in temperatures as low as 38 degrees. Please note, we do not recommend keeping your pool open when temperatures could drop to or below freezing.

      As is mentioned in this blog, heat pumps operate by drawing in outside air and converting it to heat for your pool. While a heat pump can be a great, energy efficient option for heating your swimming pool, as the air temperature drops, heat pumps can become less effective. Should you be looking to extend your swimming season from the spring to the fall, a gas heater, such as the Jandy LXI Low NOx 400,000 BTU Natural Gas Pool and Spa Heater or Jandy LXI Low NOx 400,000 BTU Propane Gas Pool and Spa Heater, may be a more effective option than a heat pump. If you have further questions or would like more information, please contact us for immediate assistance.

  • Phillip

    Question regarding pool heaters. We have a 20×40 salt pool. We are in Climate zone 7. The winter temps normally range from upper 40′s during the day and low 30′s on the night, that being a normal avgerage. We are stumped as to which heater would best fit our application.

  • Jennifer

    If the jandy will heat at temps as low as 38degrees would it be a good buy to heat a pool in Mississippi? 26,000 gal lagoon shape. Do you have to purchase the one with the cooling option in order to get the defrost for it to work in lower temps? How many BTU’s would you recommend? Gas is not an option for us. thank you so much!

    • PoolSupplyWorld

      Hi Jennifer, if gas heaters are not an option for you, a Jandy heat pump with air defrost would be an excellent choice, though you do not necessarily need the cooling option. The air defrost is what allows the heat pump to operate at low temperatures (as low as 38 degrees), and the cooling feature/chiller will actually enable the heat pump to cool your pool during hot summer months.

      For your 26,000 gallon pool (approximately 650 square feet of surface area), we would recommend a 140,000 BTU heat pump, like the Jandy EE-Ti 140,000 BTU Heat Pump, 6.1 COP, 410A, 230V/60Hz/1 Phase, Heater, Titanium, Digital. If you decide you would like a heat pump that includes the cooling feature, the Jandy EE-Ti 140,000 BTU Heat Pump, 6.1 COP, 410A, 230V/60Hz/1 Phase, Reverse (Heat/Cool), Titanium, Digital is an excellent option.

      As long as ambient air temperature does not drop below 38 degrees, a 140,000 BTU Jandy heat pump will be able to keep your average pool temperature in Mississippi at 85 degrees from April through October, and between 71 and 81 degrees from November through March, when running at eight hours per day. Were you to increase run time to 14 hours per day, a 140,000 BTU heat pump could keep your pool temperature at 85 degrees year round.

      A great way to save money on energy costs when operating a heat pump for longer periods of time is to use a variable speed pool pump, such as the Pentair IntelliFlo VF High Performance 3HP Pool Pump – 16A 230V. Variable speed pumps enable you to operate your equipment at a lower speed for a greater amount of time, which cuts down on energy consumption. The IntelliFlo VF is a fully automated, self-setting, self-adjusting pump with a micro-processor that determines and maintains the lowest amount of water flow for maximum performance and minimum energy use. The IntelliFlo VF can save up to 90% on energy costs, when compared to one-speed or two-speed pumps.

      Regardless of the pump you choose to use, we highly recommend the use of a solar cover to help prevent heat loss from your pool; this should also help cut down on the run time necessary for your heat pump. Solar Sun Rings would be a great option for your 26,000, lagoon-shaped pool.

      If you have further questions or would like more information on your heating options, please feel free to contact us directly for immediate assistance.

  • Debby

    Could you please tell me how large a natural gas heater I should be purchasing (amount of BTUs) for a pool with 80 – 90 thousand litres of water? Thank you very much, Debby

    • PoolSupplyWorld

      Hi Debby, the proper size natural gas heater for your pool will depend on how quickly you want to heat your water, as well as the difference between your desired pool temperature and the outside air temperature. The higher the BTU of the heater, the more quickly your pool will heat.

      For your 80,000 – 90,000 liter pool, which is equivalent to between 21,000 and 24,000 gallons, we would recommend the Jandy Legacy LRZ 325,000 BTU, Digital, Natural Gas, Polymer Headers Pool and Spa Heater. This heater will be able to raise your pool temperature by more than 1 degree Fahrenheit per hour, and will sufficiently accommodate for a 30 – 35 degree F temperature differential between your pool water and the outside air temperature. If you want a heater that will supply greater heating power and heat your pool more quickly, the Jandy Legacy LRZ 399,000 BTU, Digital, Natural Gas, Polymer Headers Pool and Spa Heater is a great option.

      If you have further questions or would like additional assistance selecting the best natural gas heater for your pool, please contact us directly, and one of our friendly, knowledgeable customer service representatives will be more than happy to help.

  • Kurt Johnson

    We are looking at putting in a 20 X 40 inground pool in Cincinnati. We will also be putting in an Ameridome inflatable pool cover on top. I would like to be able to use the pool @ 80 degrees from May 1 – October 31 (or about). I expect to have the dome up from Labor day to Memorial day, and uncovered then (except for solar cover). It will have a solar cover under the dome also. What size heatpump would work for us? Natural gas is not available and our propane costs are through the roof. Thanks Kurt

    • PoolSupplyWorld

      Hi Kurt, a heat pump would be an excellent option for your 20′ x 40′ pool from May to October, as they work best when the outside air temperature is warmer. Heat pumps are designed to draw heat from the ambient air, amplify it and transfer it to your pool in order to maintain your desired water temperature.

      For your size pool, we would recommend a 140,000 BTU heat pump, such as the Jandy EE-Ti 140,000 BTU Heat Pump, 6.1 COP, 410A, 230V/60Hz/1 Phase, Heater, Titanium, Digital. The EE-Ti heat pump can save you up to 80% on energy costs when compared to a propane heater. It features a proprietary digital self-diagnostic control panel that maintains pool temperature automatically and efficiently 24 hours per day. It also boasts a proprietary twisted titanium heat exchanger that provides maximum heat transfer for increased output, high efficiency and superior hydraulic flow.

      If you have further questions or would like additional information on heat pump options for your pool, please feel free to give us a call for immediate assistance.

  • Patrick Growney

    20 X 40 pool. SW Florida Recommendation for pool heat pump.

  • juan

    how many BTU will be ideal for a 12 x 28 swimming pool in Miami. And if it will be fine to have separate heater for the spa and a heat pump for the pool.

    • PoolSupplyWorld

      Hi Juan, using a heater for your spa and a heat pump for your pool should work fine as long as your plumbing configuration can accommodate such a setup. Determining the proper size heat pump for your 12′ x 28′ Miami pool will depend on the temperature you are looking to maintain compared to the outside air temperature in the coolest months you will use your pool. If you want to maintain an 80 degree pool and are going to use your heat pump when the air temperature is 60 degrees, you will need to maintain a 20 degree differential, and an 80,000 BTU heat pump should be sufficient.

      The Jandy EE-Ti 80,000 BTU Heat Pump, 7.2 COP, 410A, 230V/60Hz/1 Phase, Heater, Titanium, Digital is an excellent, efficient option. It features a durable titanium heat exchanger and a digital, self-diagnostic control panel. If you are looking to maintain a 25 degree differential, we would recommend a heat pump slightly larger than 100,000 BTU. Some larger model heat pumps, such as the Jandy EE-Ti 120,000 BTU Heat Pump, 6.3 COP, 410A, 230V/60Hz/1 Phase, Reverse (Heat/Cool), Titanium, Digital also feature a cooling option, to cool your pool when temperatures get hot.

      If you have further questions on the best heat pump for your pool, please feel free to contact us for immediate assistance.

  • Ann

    Considering a pool heat pump for central gulf area of Fl, the pool is 12×24 and 6 ft deep. What would model you recommend? the 460932? Appreciate your web site, very helpful. thanks

    • PoolSupplyWorld

      Hi Ann, thank you for your interest in a heat pump. A member of our sales team will be in contact with you shortly to help you find the heat pump best suited for your pool.

  • Dave

    I need to replace the pool heater at my condo. We are beachside in the Daytona area. The pool is 1210 sq ft surface area. The pool is shaded by the condo after 2:00 PM. We only want to heat the pool March-April and October-November. What heater do you recommend for the harsh costal (salt air and blowing sand) environment?

    • PoolSupplyWorld

      Hi Dave, thank you for your interest in a heater for your coastal pool. A member of our sales team will be in contact with you shortly to recommend the heater best suited for your pool and environment.

  • Sandy

    I had a heater 6 years ago that dumped a lot of copper into the pool when the PH and acid didn’t balance. It was a VERY expensive clean up. My pool is 18 x 38 inground. Are there any propane heaters that do not carry the risk of putting metal back into the pool if you’re not 100% diligent in keeping the PH balance all the time? I

    • PoolSupplyWorld

      Hi Sandy, maintaining the pH level and overall chemistry of your pool water is crucial for not only the health of your pool water but also the optimal operation and health of your pool equipment. While most heaters are constructed for durability, reliability and safety, poor water chemistry can still adversely affect and corrode their innards. Choosing a heater that is equipped with a Cupro Nickel heat exchanger rather than a Copper heat exchanger will help combat corrosion that could lead to copper leaking into your pool, but will not fully guarantee stability against improperly balanced water.

      For your 18′ x 38′ in-ground pool, which is likely around 26,000 gallons, we would recommend a heater that is at least 300,000 BTU, though a higher BTU will heat your water quicker. The Hayward Universal H-Series Low NOx 300,000 BTU Propane Gas Pool and Spa Heater features a Cupro Nickel heat exchanger, has electronic ignition, so the pilot light only comes on when the pool requires heat, and is certified for Low NOx emissions, which means it is also eco-friendly. To ensure you get the heater that is best suited for your pool, we highly recommend giving us a call for additional assistance.

  • Ken

    We live in MA and are considering a heater to warm the pool during summer use. Our yard is shaded and even during the hottest summer it only warmed up to 70 degrees. We have an inground pool which is about 27000 gallons. We are trying to decide between a propane heater and a heat pump. The estimates that we got show that the propane heater would only cost about $3000 (installed) while the heat pump would cost about $6000. One person said that it would cost $30/day to heat with propane vs. $1/day for the heat pump. We understand that the operating cost for a heat pump is lower, but this seems like an exageration. How much could we really save by using a heat pump (would it make up for the higher installed cost)?

    • PoolSupplyWorld

      Hi Ken, thanks for your great questions. Operation costs for large items like heaters and heat pumps can vary greatly according to the energy costs per kW in your area, but to give you an idea we refer to these costs in averages. We’d really like to put you in touch with a member of our sales team, who will be able to ask you a few questions about your pool, the general climate in the area of MA where you live, and your ideal budget. We’ve forwarded your question to the sales team and a representative will be in contact as quickly as possible. If we can help out with anything else, please let us know!

  • Cheryl H

    Hi, I live outside of Buffalo, NY and only have propane available. The 2 models available to purchase around here are the Raypak and Hayward. Can you compare these to each other? Costs are comparable, features look similar. Is one better than the other?

  • George

    I have been looking at various options for a propane pool heater. The first thing that suprised me was that based on the cost of the heater, the warranty is good for only one year or maybe two. So potentialy I may be spending a thousand or so dollars for one season of swimming? That just doesn’t seem right. It is also hard to find a unbiased evaluation of the product (Consumer Report does not rate them), and if you go by people’s evaluations that have purchased any brand, one will say that it’s the best investment they ever made, another will say that its a piece of junk. So how does one decide? I live in tha Pacific Northwest, and I was looking for a way to extend our short swimming season. I have an above ground, (salt water)just under 7000gal. pool, that pumps 33.3gal/min. Based on what I read a 100,000BTU heater would heat that amount of water overnight, even though you claim that you can never purchase a heater that’s too large. I am currently leaning towards the Jandy, as it has the highest efficiency rating and comes with a Cupro Nickel heat exchanger which should extend the life of the heater. It also comes with an Electronic Start. Do all of them come with a thermostat? And finally – I have always had trouble determining the right chemical settings regardless whether using a liquid (drops) or test strips. Considering that the right balance is critical to a heater’s longevity, is there anything on the market that would give one a more PRECISE reading? Thank you…….George

    • PoolSupplyWorld

      Hi George, for your 7,000 gallon above ground pool, a 100,000 BTU propane heater would be ideal. While a larger heater would heat your pool quicker, it is not necessary. One other thing you should consider before purchasing a heater for your pool is the elevation of your home, as higher elevations require high altitude heaters.

      Not all heaters come with electronic ignition, as some manufacturers still produce millivolt heaters that maintain a constant pilot light. The 125,000 BTU Jandy Legacy LRZ Pool and Spa Heater – 125KBTU, Digital, Propane Gas, Cupro-Nickel Tubes, Polymer Headers would be slightly larger than necessary for your pool size, but would provide quick heat-up times and extend your pool season considerably on either end. Its cupro-nickel heat exchanger and polymer headers provide excellent durability and corrosion resistance that will be ideal for your salt water pool.

      If you have further questions about the best heater for your pool, or if you need a high altitude heater, please give us a call for immediate assistance.

  • Dave

    I have a 17000 I ground pool on the east side of Cleveland Ohio so I get Buffalo NY type snow and weather. I need to replace my propane pool heater which is a Pentair 200M. This heater lasted 7 years and I am looking to replace Pentair with another brand that will last longer. Any suggestions. PS my wife is very diligent about our pool chemicals balancing each week. We often have to use metal remover to maintain pool blance. Thanks

    • PoolSupplyWorld

      Hi Dave, for your 17,000 gallon pool, you may want to consider a 250,000 BTU heater, which is designed to heat a pool of such size at approximately one degree per hour. An ideal choice would be the Hayward H-Series Low NOx 250,000 BTU Propane Gas Pool and Spa Heater, which also uses 2″ unions and works ideally with 2″ piping. H-Series heaters are built to be reliable and efficient, and each feature a cupro-nickel heat exchanger that is designed for corrosion resistance and erosion protection.

      The Jandy LXi Low NOx 250,000 BTU Propane Heater is another excellent choice. The LXi is generally more advanced in its features, such as its Maintain Temp Function, an optional feature that helps you automatically maintain your desired pool temperature. It has offset plumbing and 2″ universal unions that provide flexibility for simplified, direct connections. Both the LXi and the H-Series Heater are low NOx, and will provide the necessary BTUs required to adequately heat your pool.

      For more information on heater options, please feel free to contact us directly, and a customer care agent will be happy to assist you.

  • Matt

    New to the pool game. We are have a ~14,000 gallon in-ground pool in south florida. The pool is divided into a main area and a ~1000 gallon jacuzzi type area. We want to have that area heated. The entire pool heating would be nice, but depending on the cost we may only want a unit capable of heating 1-2k gallons efficiently and quickly. We would use the unit on demand, normally late evenings or cooler days. Any suggestions? We do not have gas in the house so we would prefer an electric heater or pump.

  • blair martin

    I live in South Carolina near Hilton Head. ( southern sc) and would like to use my pool year round. It is 20 by 40 and goes from 3 ft to 9ft depth. I was wondering what would be my best option, a heat pump or heater and how many BTU’s. Thanking you in advance for your help, Dr. Blair Martin

    • PoolSupplyWorld

      Hi Dr. Martin, Your best bet is going to be a heater with a high BTU rating (I’d probably go 400,000). Someone from our customer care team will be contacting you shortly to discuss some options and answer any questions you may have. Have a great day!

  • Jonathan

    We’re in Portland, Oregon. We are heating a 45,000 gallon pool with a 10 year old Minimax 400,000 BTU heater. That unit is getting very noisy, probably in the blower, sounds like an industrial machine. Is there a known cause/fix for that problem. New blower? Clean heat excchanger? If no fix, It may be time to upgrade. If so, we need to know (a) what is the quietest natural gas heater available today and (b) do we have a heat pump option? ‘We heat the pool summer only and try to keep temp above 80. We also have a large solar system, which means we need gas for start up, on cloudy days and on colder evenings. Your thoughts, please?

  • Ben Murphy

    I operate a commercial pool and Spa in Manhattan Beach California, 22 x 38′, was a diving pool at one time. + a 10′ x 10′ Spa I need to replace the existing Tele/Laars Nat Gas heater, and was wondering if the heat pump was a good choice. Users prefer holding a temp of 85 year round. Weather is nice here. with occasional foggy or overcast conditions. Mostly always above 45 degrees.

    • PoolSupplyWorld

      Hi Ben,

      In your scenario you will want to use a traditional natural gas heater. Heat pumps will not be sufficient to heat up a spa in your commercial facility. In commercial settings you are usually required to use ASME rated equipment. You should check with your local county to see what your regulations are regarding equipment. We would recommend that you go with a 400k BTU ASME rated heater. A majority of heat pumps are rated at a max of 140K BTUs. The heating of your spa would take a tremendous amount of time and not be efficient with a heat pump. Let me know if you have any questions! -Christian

  • Bill Ruth

    We live in Fallbrook Ca (North SanDiego County) we have a in ground lap pool 37′x15′x4′ deep. We want to use it yearround keeping to tempurature around 88 degrees. Propane is to expensive and our solar panels dont work well in the winter months. We were told our climate is not humid enough for a heatpump to work. Is that true?? If a heatpump will work can an electric model be powered of photo-voltaic panels if we had them installed on the roof

  • Joe

    I live in Eastern Long Island NY and would like to keep a steady temp of 80 deg. I only use the pool in the summer months but would like to extend the use by a month at the beginning and end of the season. Propane heaters seem to be expensive to operate compared to a heat pump. My pool is 15 x 32 depth ranges from 4 to 8 feet. Question one: is a heat pump a better solution than a heater? Question two: If a heat pump is a good choice, I am considering a Jandy heat pump. Should I go with the 120,000 BTU or the 140,000 BTU unit? What is the end difference to me? Thank you.

  • Holly Froehlich

    Im having a 14 X 30 inground pol installed and I.m currently researching a heater and 1st need to know how many BTU’s I need also,I live in NC just want to run the pool through October. Any ideas?

  • Paul

    I called Rome for warranty work on my pool heater which is less than 5yrs. old and I’m told they are out of business and want to charge me $600 for parts + $200 to install a defective mother board which are failing at 100%. Is this true? Paul, FL

    • PoolSupplyWorld

      Hi Paul,
      I am not familiar with the company you are referring to. Is Rome the heater manufacturer or the installer? I have never heard of them. -Christian

  • Pal

    We live in Alabama . Our in-ground pool size is 16×36, vinyl. We would like to extend our pool use for about two months in the spring and at least two months in the fall. Normally the swimming season starts in May and ends about before mid-september. Times are very, plus/minus ten days. We are not going to use our pool during the winter per say, even though winter temperature usually doesn’t get below freezing. March-April, Oct-Nov nights are around high 40F-mid50F and days are pretty warm, average 70F. So, based on the info in the forum we feel like electric heater is the best choice for us. Please express your opinion on the choice and the brand we should install. Thanks.

  • carol

    My mom’s pool is about 50ft x 14 wide. It’s appx 7ft deep. What type of electric heater is best? It’s in Sarasota FL. What type of pool cover would you suggest than a small single person can manage easily.

    • PoolSupplyWorld

      Hi Carol,
      Someone from our customer care team will be contacting you to assist with these recommendations! Have a great day! -Christian

  • Martin Larsen

    I have a 20×40 oval pool, i live on long island in NY. I am thinking about getting a heat pump. I use the pool from the end of may until the end of sept. How many BTUs do you think i need. Which model heatpump do you recommend?

    thank you

  • NCAJ

    I have a AquaPro heat pump, installed 2009, and it has been broken since early July. It cost about $7k to install, with the cost of the unit, installation, electrical work, etc. It has proven impossible to get anyone to fix or service it. HVAC companies that work on heat pumps in buildings do not want to touch these units. The manufacturer has been no help at all. (The company they said they used for service here in the Northeast is out of business). Keep in mind as you decide that it may be impossible to get service on these units, depending on where you live. I have lost most of the summer swimming season.

    • Dylan (PoolSupplyWorld)

      Very sorry to hear about the issues you have been experiencing receiving support. We unfortunately do not have any kind of service department ourselves so we wouldn’t be able to provide any repair work. If you wanted to give us a call at 800-772-0467 we could maybe try to help list a few different pool service company in your area. Thanks for your feedback, even though yours wasn’t a good experience, it is still appreciated!

  • B W


    I have a similar desire as one of the others here. I live in St. Louis, MO and have a 20K gallon concrete pool. I recently had solar panels installed on my roof and now want to heat my pool to temperatures in the high 80′s or a bit warmer year round. The temperatures here, in the winter often drop into the teens and 20′s. Before the installation of the solar panels, I was researching natural gas heaters, then turned my attention to electric heat pumps. However, heat pumps in this area are not a good choice for home heating due to the low outdoor temps. Would you recommend an electric heater and if so, any particular brand and size? How well would it heat my pool to the temps I desire? Or would it?

    Thank you,


    • Dylan (PoolSupplyWorld)

      Great questions and pairing up an electric heater with existing solar heating can be a good strategy to limit the amount of time you need to run your heater. One important question that I would have for you is whether or not you have a salt chlorination system, or plan on getting one? If you do then you would want to be sure to purchase a heater with a Cupro-Nickel heat exchanger as they are more durable and hold up much better in corrosive water. As for a size of a heater, the larger you can go in terms of BTU then the higher and faster the water temperature will rise. For a pool of your size I would recommend in the 250K-325K BTU’s.

      Assuming you do not have a salt chlorination system then my top choice for you will be the Raypak sku# 009218 located at the following link. When on the product page I would select the 333K BTU option and I believe that will be a great choice to reach the higher temperatures that you desire.


      Now assuming you do have a salt chlorination system then I would shift my recommendation to the Hayward Universal H-Series which does come with the Cupro-Nickel heat exchanger. The 300k BTU model would be an appropriate choice for your pool size (going larger doesn’t hurt though).


      A few other aspects to pay attention too are going to be the gas pipe size that you have available, your plumbing configuration, and any local efficiency rating requirements. If you have further questions about any of this then feel free to contact one of our sales reps at 800-772-0467. Thank you!

  • Ericka

    Hi, we have a new salt water pool, installed Sept 2013. Size: 10x50x5 We have a Pentair propane pool heater and it cost $1500 in propane for 3 months. It was $1500 despite the fact that we also have solar pool heating. We want to keep the pool at 80 degrees year round. Will a heat pump work in a dry, desert, climate? The temps are mostly above 45 degrees, but it is dry. Thanks.

    • Dylan (PoolSupplyWorld)

      Hello Ericka,

      Thank you for submitting your question on our blog page! I have forwarded your question to one of our account managers who would be perfect to help with a recommendation.

      A heat pump is ideal in warm desert climates, and will potentially save you quite a bit of money. The AquaCal heat pump line is a very popular and reliable brand, our account manager will be sending over some information on models specific for your pool.

      Have a nice day!

  • Richard

    Purchases in the spring pentair 400 btu gas heater . It failed after 70 days,
    I purchased the three piece combo that provides an extended warranty
    Coverage. Oh well. (. What’s in a warranty ). Integrity??????
    After months of testing, texting, phone calls

    Pentair has refused to help.

    What dobyou think
    Call or text 405-615-9742. Rdmok@sbvhlobal.net

    • Dylan (PoolSupplyWorld)


      Sorry to hear you were experiencing some issues with your Pentair heater. I will be having one of our sales reps get in touch with you to see if we can be of assistance in any way. Have a nice day!

  • C. G. Charvet

    Hi, we are considering the purchase of a heat pump for our pool as our propane heater is no longer working. We have a Crestwood Above Ground 15 x 30 pool. We live in north eastern PA. We typically open the pool from early May – end of September. We have been told Aqua Comfort Signature XL 76K BTU is a good option, do you agree?

    • http://PoolSupplyWorld.com/ Whitney (PoolSupplyWorld)

      Thank you for visiting our blog! We usually don’t suggest using a heat pump in areas that have less than 45 degrees Fahrenheit or higher all year around because the heat pumps needs warmer temperatures to work efficiently and correctly. I haven’t heard very much about the Aqua Comfort and couldn’t find very much written about it online. It may be a a great model, but with little feedback about the model I would be hesitant.

  • Patrick G

    Good day!
    I live in South Florida, I have a 20k gallon inground pool with a solar pool heater. I am looking for a heater that would help me lift the temperature about an additional 5-15 degrees in fall and spring to extend the swimming season. Would you recommend a natural gas (we have a gas line) or heat-pump water heater for that purpose? And what size would be good? What would be financially better to run?
    Again, the heater would run only for a few months a year and only a limited time of the day (whenever there’s no sun).

    Thank you!

    • Dylan (PoolSupplyWorld)

      My recommendation would be to go with a heat pump as you would be able to realize significant energy savings by not needing to use that gas line. A heat pump will work great in Florida as your ambient air temperature typically remains high, and would allow the heat pump to work almost year round if desired.

      The heat pump will be a bit more expensive up front, but will in the long run save you money that would be normally spent on your gas bill.

      The largest size heat pump you can afford the better, but for your size pool I would suggest something in the 110K-130K BTU range.

      The Pentair UltraTemp is at a pretty good price point at the moment:


      If you had more in-depth questions, or wanted a different recommendation, I might suggest contacting one of our account managers directly at 800-772-0467. Thanks!

  • Ben

    I’m also undecided on the heat pump v. gas heater. I live in the Chicago suburbs and it’s still very cold out. I just got a Radiant semi inground with insulated walls. I need some help on what is best for me. I would much prefer a heat pump after researching the two options, but from what I understand, the heat pump takes heat from the air. I worry that the cold temps here will keep the heat pump from working. What is the lowest temp that they can work efficiently? If it could work here in the colder temps, what model would be practical for my pool? Thanks in advance.

    • Dylan (PoolSupplyWorld)

      Heat pumps will have a minimum ambient air temperature of roughly 50-55 degrees before not providing any benefit. My suggestion would be to evaluate your local weather and determine in the spring and fall when the temperature is going to rise or fall above or below that 55 degree mark.

      Heat pumps are great at maintaining a warmer pool temperature without the high cost of gas. On the other hand, gas heaters have the benefit of being able to make sudden temperature changes at any time of the year.

      Living in Chicago you might not get quite as much benefit as someone that is in say Florida, but there certainly will be some savings to be had with transitioning to a heat pump. If you wanted some suggestions on a specific model I might recommend giving one of our sales reps a phone call directly at 800-772-0467.


  • Cathy

    Looking to install a heat pump for a pool that is 22×32 with a variable depth up to 9 feet. Currently have a solar heater and previously used a gas heater that broke within several years. Live in Rochester NY. What size or brand would you recommend for this situation?

    • http://PoolSupplyWorld.com/ Whitney (PoolSupplyWorld)

      One thing to remember in choosing to do a heat pump instead of a gas heater is that heat pumps require a ambient air temperature of 50-55 degrees Fahrenheit or higher to be effective. In New York this would be useful in the summer, but I would worry about any use your would like in the spring or fall. The ideal size for your pool would be 120K BTU or over. The higher the BTU the faster your heat pump will be able to heat. The Pentair Ultra Temps are usually a great model. They come with a $150 mail in rebate through Pentair right now. You can see them here:


      Please let us know if you have any other questions! Have a wonderful day!

  • kurt

    note: the pool depth will be from 2′ 6″ to 4′ 6″

  • PoolSupplyWorld

    Hi Cheryl, Raypak and Hayward manufacture great heaters with similar features, such as digital displays, cupro-nickel tubing and low NOx emissions. It’s all a matter of preference; both have been preferred by our customers. You can choose a Raypak heaters can withstand harsh weather elements, and you can select a model based on the installation elevation. Hayward heaters are compact and maintain heat effectively with Fire Tile insulation. Either heater will work great in your application. If you have further questions, please contact us directly for immediate assistance.

  • PoolSupplyWorld

    Hi Matt, Our customer support team will be contacting you shortly to get additional information and go over some options for your set-up.

  • PoolSupplyWorld

    Hi Bill,
    Someone from our customer care team will be contacting you shortly to discuss some options for heating your pool. Let me know if you have any questions! -Christian

  • PoolSupplyWorld

    Hi Joe,
    Someone from our customer care team will be contacting you shortly to get some additional information and help you decide what is best for your pool! Let me know if you have any questions! -Christian

  • PoolSupplyWorld

    Hi Holly,
    Someone from our customer care team will be contacting you shortly to get some additional information and help you determine which heater is best for your set-up. Let me know if you have any questions! -Christian

  • PoolSupplyWorld

    Hi Pal, Someone from our customer care team will be contacting you shortly to get some additional information and help you pick which heater or heat pump is best for your situation. Let me know if you have any questions! -Christian