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Mxmoonant

Mxmoonant Pool Heater 3KW 220 240V, Electric Hot Tub Heater Water Thermostat with Temperature Control Self Heating for 500 Gals Spa, Bathtub, Swimming Pool (Hardwired)

    • Based on 31 reviews
Condition: New
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To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Feb 10
Order within 7 minutes
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Features

  • [Self-Heating]: When the water temperature reaches the preset temperature, the pool heater will automatically stop. And when the temperature is lower than the preset temperature, the heater will automatically turn on again.
  • [Dry Burning Prevention]: The swimming pool heater is equipped with a pressure switch to protect it from the risk of dry burning due to lack of water in the operating process. If the water pressure drops to 15kPa or less during operation, the pressure switch will shut off the power.
  • [High Temperature Protection]: The hot tub heater has a high temperature protection switch. When the temperature reaches 50C due to a lack of water flow or a blockage in the inlet, the heater will trip (cut off power).
  • [Wiring Method]: Pool heater typically do not come with a standard plug attached because it often requires higher voltage and current levels compared to standard household appliances. Instead, they are designed to be hardwired or connected using specialized connectors. High power heater can achieve better heating effect, so we recommend that you invite an electrician to help you wiring.
  • [Notice]: The pool thermostat is suitable for pools around 500 gallons. In addition, the electric pool heaters come with 2 different pvc pipe connectors. One inner diameter is 48mm (1.88"), and the other is 50mm (2"); [Tips] It is recommended to use SCH 40 1.5inch pvc pipe.

Product Dimensions: 7.56 x 4.72 x 5.51 inches


Item Weight: 5.04 pounds


Manufacturer: Mxmoonant


Item model number: WJW-2


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Feb 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • An affordable small spa heater that works
I built a DIY hot tub out of 150 gallon stock tank, with ~85 gallons of water when it's full. Well, I'd originally intended the tub as a cold plunge, but the allure of making it a 2-in-1 was too great. I tried a heater from another company, and wasn't able to ever get the thing to turn on, which I assume was due to the pressure switch not receiving adequate flow. I had it plumbed in kind of a weird way: from the pump, I had a 3-way valve that diverted either to the chiller branch or the heater branch, then a second 3-way valve from the outputs of the heater/chiller back into the filtration system and then into the tub. I suspect that the resistance from this complicated system was a bit too much for the pressure switch in the heater, which is why I never got it to work. After returning my old heater, I got this one and plumbed it inline right after the pump, and lo and behold, it worked! I put it on a 30A GFCI breaker (which is way overkill for the ~13A this thing would pull), with two 110V legs to give it to the 220V it needs. With the small quantity of water in my tub and heavy insulation I added to the cavity that holds the tank, I can get it from ~70F to ~103F within 2-3 hours, and it has no trouble staying there in outside temperatures of ~40F. PROS: The case is made out of metal and the little unit feels quite sturdy as a result. The controls are dead-simple, just a knob to change it from off to its maximum of 40C (~104F). I really appreciate the addition of a light that shows when it's working; the old heater didn't have that. It came with a few PVC fittings, including two 1.5" ID unions that I was able to plumb into my system without much trouble. CONS: I wish it got hotter! Also, like a lot of spa heaters the PVC fitting are some custom size/threading, so if you solvent-weld them incorrectly you're kind of SOL, so be careful. In summary, I had no issues getting it to work, and I love having a hot tub. For the price, it's a great little unit. ... show more
Reviewed in the United States on November 15, 2024 by Faisal S Alquaddoomi
    • Didn't work right out of box\Update!!!
Purchased this product in may 2023 and had it hooked up 30 days later. Electrician wired it to a 220 volt GFCI breaker and it instantly blew the breaker. Checking all the wiring, which is simplistic, everything was fine. Determined a dead short internally. Unfortunately I was one day late of return policy and now have to deal with manufacturer. This is a very non complicated product and somehow still screwed it up. Looking like I just ate the $180.00 price tag. UPDATE!!! EVEN THOUGH THE PRODUCT WAS DEFECTIVE THE MANUFACTURER RESPONDED IMMEDIATELY AND EVEN THOUGH AMAZON 30DAYS EXPIRED THEY CREDITED MY ACCOUNT FOR THE PURCHASE PRICE. CUSTOMER SERVICE WAS PROMPT, POLITE, AND CONSIDERATE WHICH WE ALL CAN APPRECIATE ... show more
Reviewed in the United States on July 7, 2023 by Dcdrive
    • Great little heater!
This heater very easily keeps up with our 5000 gal. pool. (northern Indiana). I have a timer that allows the pump to run 12 hours a day, and that gives the heater enough time to do its job, and automatically kicks on and off as the pump does, due to its internal flow sensor. Our first heater developed an issue with the thermostat, so I informed Amazon and they referred me to the manufacturer, who soon contacted me. Ashley was very helpful, responsive, and effective. With a couple interactions via email, they were soon sending me a new one. I would highly recommend this small and mighty heater, and also this company. Note: This heater was very easy to install; the original ones did not come with gaskets but I believe the newer ones do now. ... show more
Reviewed in the United States on September 21, 2024 by Grant Miller
    • Dead on arrival but quickly refunded and replaced
Install was a breeze. One of the included fittings are nice and snug on 1.5 inch pvc. Unfortunately electrician hooked it up this am and unit is dead. Stuck ordering the same unit again as switching brands would require more work than rolling the dice that the next unit will work. Will update if new unit functions. Update: It is a 3k heater so will not heat quickly. Functions as expected. Approximately 1-2 degree rise per hour. Easy to use and set. ... show more
Reviewed in the United States on November 23, 2023 by Stephen M. Huddleston
    • No plug
Since it didn’t come with a plug I haven’t been able to use it yet. I still haven’t been able to get an electrician to wire it. Therefore I can’t use it and no longer need it.
Reviewed in the United States on August 25, 2024 by debbie p.
    • Not adequate
It did make the pool warmer than it was but couldn’t get it above 70 degrees. I couldn’t install it. I had to hire a plumber.
Reviewed in the United States on January 14, 2025 by Reva
    • Very Happy with Product
Review Image by Abigail C. Abigail C.
I hooked this up to my GFCI hot tub breaker and decommissioned our hot tub for the summer. It said max gallons was around 500 so I was hesitant because we have a 1200 gallon pool, but wow! It heated the pool up to 30 degrees c no problem. At first I was worried it might be defective because hours went by and I couldn’t feel a change, but I left it all day and actually had to turn it down because it was getting too warm for our pool. Very pleased with product. ... show more
Reviewed in the United States on July 21, 2023 by Abigail C. Abigail C.

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