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Smart POOL 18 Tankless Electric Pool Heater 18 kW 240 V

$81701
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  • Provides 1° to 1.5° F temp rise/hour
  • Requires 2 x 40 AMP double pole breakers
  • Same-day installation available. Call 1-855-400-2552
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Product Overview

EcoSmart Electric Tankless Spa and Pool Heaters are designed to provide reliable, efficient, convenient, on demand heating. EcoSmart Pool Heaters operate by utilizing the latest flow sensor technology instead of the traditional pressure switch activation to reduce the risk of burned elements, which increases its reliability and longevity. The Smart POOL series come with digital thermostat control so you can set the temperature exactly where you want it. EcoSmart Pool Heaters are compact and easy to install for a new or existing pool.
  • Provides 1° to 1.5° F temp rise/hour
  • EcoSmart pool heaters are compact and easy to install for a new or existing pool
  • Set your temperature digitally to increments of 1 degree, set it and forget it
  • Uses the latest flow sensor technology
  • Can be used as an alternative to or booster to heat pump
  • For use with pools that have up to 11,000 Gal. to calculate the gallons of your pool: surface area x average depth x 7.5
  • Requires 2 x 40 amp double pole breakers
  • Durable stainless steel heating elements
  • Before purchase and installation, please verify that you have the proper electrical requirements for your chosen heater
  • Energy Efficient
  • Energy efficient
  • Check out our buying guide on water heaters
  • What tankless water heater is right for you?
  • Click here for more information on Electronic Recycling Programs
  • California residents

Additional Resources

From the Manufacturer

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Tempra 36 Plus Advanced Flow Control & Self-Modulating 36 kW 7.03 GPM Compact Residential Electric Tankless Water Heater
BrandEcoSmartEcoSmartStiebel Eltron
NameECO 18 Tankless Electric Water Heater 18 kW 240 VSmart POOL 18 Tankless Electric Pool Heater 18 kW 240 VTempra 36 Plus Advanced Flow Control & Self-Modulating 36 kW 7.03 GPM Compact Residential Electric Tankless Water Heater
Price
$41784
$81701
$84900
Ratings
(1598)
(36)
(13)
Required Volt Connection240 volt240 volt240 volt
Application TypeResidentialResidentialResidential
Wattage (watts)18000 W18000 W36000 W
Indoor/OutdoorIndoorIndoorIndoor
Water Heater FeaturesWall MountedWall MountedOverheat Protection,Wall Mounted
Number of Showers1-21-21-3
Fuel TypeElectricElectricElectric
View ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
6 in
Product Height (in.)
17 in
Product Width (in.)
14 in
Water Connection Size (in.)
2 in NPT

Details

Amperage (amps)
75 A
Application Type
Residential
Electricity Phase
Single Phase
Finish Family
White
Flow Rate @ 35°F Rise (gallons/min)
3.51 gal (US)/min
Flow Rate @ 45°F Rise (gallons/min)
2.73 gal (US)/min
Flow Rate @ 55°F Rise (gallons/min)
2.24 gal (US)/min
Flow Rate @ 65°F Rise (gallons/min)
1.89 gal (US)/min
Fuel Type
Electric
Heat Exchanger Warranty
1 Year
Indoor/Outdoor
Indoor
Maximum Temperature (F)
104 °F
Minimum Activation Rate (gpm)
0.25
Minimum Temperature (F)
80 °F
Number of Elements
2
Number of Showers
1-2
Pack Size
1
Product Weight (lb.)
24 lb
Required Volt Connection
240 volt
Returnable
90-Day
Uniform Energy Factor
0
Water Heater Features
Wall Mounted
Wattage (watts)
18000 W

Warranty / Certifications

Certifications and Listings
CSA Listed,ETL Listed,UL Listed
Labor Warranty
No Warranty
Part Warranty
2 Year

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 3.3
    out of 36 reviews
  • 59%recommend this product
Filter by:
Showing 1-10 of 36 reviews
ECO Not SO Smart Heater -Needs Redesign!
Less than 1 year went thru 7 heater elements and 1control board. Heater element blew out top, water soaked everything including Control board 1st time, then 2nd a leak at the top of the elments, not the threaded area,but where the wires connect. slow leak that since there is no air circulation allowed saturation to build up until short circuit.. fuse for unit is .025 amp fast blow.. probably because unit can not handle any moisture.. After the 1st four 9000 watt units blew I hav replaced with 3800 watts. I am in Florida. Be sure to get warranties and have someone install that will guarantee the work.. I am in search for a pool heater to replace this one.. i will take my loss and move on..
by
    3 found this review helpful
    I use this system here in FL, as our pool is in the sun all day long, hence when the sun is out, ...
    I use this system here in FL, as our pool is in the sun all day long, hence when the sun is out, we don't need it! The location of the Pool heater is at the side of the house, so doesn't capture any direct sun; had it been located in the sun, then a more expensive heat-pump would have been beneficial, but not for our location, hence don't need to capture the sun's energy as the days we want to use the heater, its a cold day ! Install was easy, as long as you have 2 x 40A breakers and correct gauge wiring. We changed the cable clamp and made a custom conduit 'Y' fitting so all cables and conduit are directly connected vs just pinching the cables. Pluming straight forward. Operation easy press of the dial. Only negative is the LED display is extremely hard to see in the sun, even shading with your hand, its difficult to see what's displayed. It took less than 24 hrs to heat our 10000 gallon pool +15F Hoping for longevity - we will see.
    by
    • Verified Purchase
    • Recommended
    6 found this review helpful
    Replacing a pool heater is never trivial, but this unit's install was far easier than any we've d...
    Replacing a pool heater is never trivial, but this unit's install was far easier than any we've done before. We replaced a broken propane pool heater with this sleek tankless 61,000 BTU EcoSmart pool heater. Natural Gas is not available in our rural location so we used propane previously to heat our pool and its cost is quite high. As a result, the cost of using this much power was not nearly as onerous as it might seem. With the heater installed with our in-ground pool running a little over 70 GPM, we get anywhere between 2 and 5 degrees differential between the incoming and outgoing water temperatures. This is exactly what we hoped for, as this is not a spa, but rather a large in-ground pool, we wanted simply to raise the temp to comfortable levels, as opposed to creating a hot tub. Installation is straight-forward. We plumbed in the recommended bypass and shut-off valves (see pictures) using 2" PVC since the inlet and outlet are 2" fittings. Because this unit is not designed to be exposed to freezing temperatures, we plumbed in unions that allow it to be taken in for the winter. We also built a housing around it to protect it from the elements in the summer. Wiring is easy, but demands 80A of 220V power. We ran a pair of 40 Amp lines using 8-2 w/Ground Romex from 40A breakers in the main panel to two remote disconnect switches at the heater. The electric and plumbing installation took about 8 hours total time, so it's not quick, but not hard either. The only issue we had with the install was mounting the heater to the metal base that comes with it. The heater leg flanges did not line up with the threaded holes in the base, requiring us to manually bend the heater flange legs to align properly. Minor issue, and the paint did not chip while bending the metal, but from a quality perspective, not up to a 5 recommendation. The unit does not come with a remote, but one is available for about $50. We did not opt to install that as we felt it would probably be more useful for a tankless heater serving a shower or bath than a swimming pool that rarely needs temp adjustments and requires considerable time to do so. This unit really extends the swimming season for us, so we're really delighted with it. Definitely recommended for those, like us, who don't have access to low cost gas heating alternatives.
    by
    • Recommended
    3 found this review helpful
    I wasn't sure about a pool heater at the beginning. Now I am glad that I got one. Living in the e...
    I wasn't sure about a pool heater at the beginning. Now I am glad that I got one. Living in the east coast means that you only get to enjoy your outdoor pool for about two months every year, which is a huge shame. It is also such a waste of money that the pool is just collecting dust and takes up a big piece of your back yard. So I gave this heater a try. Installation was easy. I have been running it for about a month now. So far everything is good. It is also more energy sufficient than the ones with tanks.
    by
    • Recommended
    3 found this review helpful
    It didn't come with any kind of warranty paperwork or instructions. Power seemed confusing at fir...
    It didn't come with any kind of warranty paperwork or instructions. Power seemed confusing at first, it's 75amps (so 2x 240volt lines). That being said, the install was easy (I should mention I am a plumber). I hooked up the pump (Intex .22hp) and the unit came right on. Set the temp and go. Wanted 86 degrees in my 12x24ft above ground pool, Colorado weather cools down in the fall bringing the pool temp over night to about 75 degrees. If I start heating in the morning, I get my 86 by afternoon. I installed it in a 'hut' outside and made both plugs and 2" PVC lines with disconnect options.
    by
    • Verified Purchase
    • Recommended
    1 found this review helpful
    This is the first time having a pool heater for me. We had to close the pool as soon as the water...
    This is the first time having a pool heater for me. We had to close the pool as soon as the water temperature got too cold to enjoy. It also did not get warm enough until July. Now we will be able to use and enjoy the pool for a much longer season. Installation looks very easy and not complicated at all. The unit gets mounted on the wall. It must be inside and not allowed to freeze in the winter. It has to be mounted after the filter. Wouldn't want the bugs and leaves clogging up this heater. There are two water connections on the side of the unit. One for the cold water coming in and the the other for heated water returning to the pool. There is also the electrical connection that does not have a plug and has to be installed by an electrician. It needs two forty amp breakers. It also has to have a bypass, drain valve and shut off ball valve installed. This EcoSmart is more than a regular pool heater. It is an on demand tankless model. It is so much more energy efficient than keeping a large tank hot all the time. It has worked well in homes already. EcoSmart also makes a variety of home tankless water heaters. This model uses eighteen KW and heats up to 2 3/4 gal per min. It is for a pool up to about 11,000 gallons. It has a digital thermostat in that sets temperature in one degree increments. The minimum setting is eighty degrees with a maximum safety of 104. Since my pool is currently in the mid eighties, it is comfortable for now. In a few weeks, it will be too cold to swim without this new heater. It will be great!!
    by
    • Recommended
    7 found this review helpful
    by
      Eco Smart Pool 18
      Bought this device in April online, hired an electrician to run wire and install 2-double 40 amp breakers, ordered a housing for it due to reviews that said to not put in weather. Worked amazingly for 2 weeks. Contacted Tech Support, said it was probably a stopped up flow switch. Looked device up online, and diagrams did not show location of flow sensor on this model, tech support said it was in the input. Took device apart after having electrician to disconnect wiring, located it in the outlet with a spring clip holding it. Removed spring clip and could not remove sensor. Cleaned it inside the unit with all suggestions from Eco using vinegar and flushing with water. Hooked all back up, flow still shows F 00. Knowing the pool pump is pumping excellent pressure through unit. It worked before. So far Ive spent $900 on heater, another $750 on electrician and I still have a heater that doesnt work. I have a case number from tech support, went online to website with the case number, still no contact back to me. This is not a plug and play device, but doing as adviced has not worked. I am hoping someone with Home Depot reads my review. This is used on a physical therapy lap pool thats not getting used.
      by
        • Recommended
        Excellenct Heater for the price
        Heats my 16x32 inground pool and spill over spa.. I’ve only had to heat the pool once and I turned it on the night before when the water was 73• and ht the next morning it was 86•.. it heats the hottub within 15 mins to where we want it.. it did require 3 40 amp breakers 30 amps weren’t strong enough for it
        by
          • Recommended
          No Longevity, great attempt from customer service
          We bought this heater because it was cheaper to run electric than gas in our area, had it professionally installed and it ran great the first year but the last 2 years despite new parts sent by their customer service department(they were great at attempting to help) the heater will not stay running will work when it wants to but never for very long so this year rather than try to play that game anymore will be biting the bullet and chalk it up as a loss and buy something new most likely gas even though it will cost more in the long run. Great attempts by customer service but I have to give a negative review on the product itself as it was a giant waste of money and a headache that i should not have to deal with.
          by
            Showing 1-10 of 36 reviews