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Portable Water Heater 2000W, Pool Heater - Immersion Heater with Digital Thermometer, Upgraded Magnesium Oxide Heating for Fast Heating, for Small Pools, Bathtubs, Buckets, Tanks

  • Based on 121 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
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Arrives Wednesday, Mar 11
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Features

  • PROFESSIONAL SAFETY & AUTO SHUT-OFF This immersion water heater is your ultimate safety partner. The intelligent system automatically powers off the 2000W heating element once water hits the perfect temp of 165F (75C), preventing scalding risks. The durable stainless steel build resists rust. Remember: Always fully submerge this bucket heater in water before plugging into a 110V outlet to avoid damage or fire hazard.
  • RAPID 2000W HEATING POWER Say goodbye to cold water! Our 2000W high-efficiency portable water heater rapidly takes the chill off, warming up 5 gallons in just minutes. It's the perfect pool heater for inflatable pools, small stock tanks, and buckets. The perforated guard maximizes heat dispersion for faster, more even heating. Pro Tip: For larger tubs, use multiple units on separate circuits to speed up the process.
  • ULTIMATE PORTABILITY FOR ANY SCENE Your go-to heating solution anywhere! This lightweight and compact immersion heater is ideal for camping, farms, garages, or bathrooms. Use it effortlessly as a hot tub heater for portable spas, a pool warmer for kiddie pools, or to heat water for chores and pets. Critical: Keep it 3+ feet away from gases or flammables during operation.
  • SMART LCD TEMPERATURE MONITORING Precision heating at a glance! The built-in digital thermometer displays real-time water temperature, so you never have to guess. A clear power indicator light lets you know it's working. Just immerse, plug in, and monitorits that easy! Always ensure no people or pets are in the water while this pool heater is running.
  • COMPLETE KIT & WORRY-FREE WARRANTY Everything you need is in the box: the FIVECUBS immersion heater, LCD thermometer, and user manual. It makes a practical gift for anyone. Your satisfaction is 100% guaranteed. Our US-based support team is ready to assist you with any questions or needs.

Material: Stainless Steel


Voltage: 110 Volts


Brand: FIVECUBS


Color: Black


Wattage: 2000 kWh


Material: ‎Stainless Steel


Voltage: ‎110 Volts


Brand: ‎FIVECUBS


Color: ‎Black


Wattage: ‎2000 kWh


Item Weight: ‎11.2 ounces


Manufacturer: ‎FIVECUBS


Product Dimensions: ‎10 x 2 x 2.7 inches


Item model number: ‎RSB02


Date First Available: ‎June 24, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Mar 11

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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  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Portable Immersion Water Heater
Number of Items: 1
The digital thermometer makes it easy to monitor the temperature. Use the temperature detector device. This portable water heater is surprisingly powerful and heats water fast — good for filling up bathtubs, small pools, or large buckets. Just make sure you follow the safety instructions and never plug it in until it’s fully submerged. It’s compact, easy to use, and the magnesium oxide heating element feels like a durable upgrade. Great tool to have on hand, especially for colder months or outdoor use! Perfect size, really works and within minutes the water gets really hot. It can used for heating water when camping. Super convenient and reliable. ... show more
Reviewed in the United States on November 20, 2025 by Shaan K Shaan K

  • Warm water in no time!
Number of Items: 1
This 2000W portable pool heater exceeded my expectations from the first use. It heats the water quickly and consistently, making a noticeable difference in comfort without needing any complicated setup. The unit is compact and easy to move around, yet powerful enough to warm up my pool far better than other portable heaters I’ve tried. It feels well-built, operates quietly, and has been extremely reliable so far. If you’re looking for an affordable, effective way to raise your pool’s temperature without hassle, this heater is absolutely worth it. ... show more
Reviewed in the United States on November 25, 2025 by Igor Perru

  • Disappointed
Number of Items: 1
Worked one time partially, then never got hot again.
Reviewed in the United States on November 23, 2025 by Amazon Customer

  • Great water heater
Number of Items: 1
This thing works great for heating my 750 gallon pool. It’s great in Florida in the fall when the weather is good but the water is a little bit colder than you want to get in. This will heat the water up and it’s easy to use. I highly recommend it to use your pool year round. It’s great because the way to drops into the pool it doesn’t touch the sides and it doesn’t hang low enough to touch the bottom. ... show more
Reviewed in the United States on November 13, 2025 by AW AW

  • Heats water fast and simple to use!
Number of Items: 1
I bought this immersion heater to warm up water quickly, and it works really well. The metal tube design feels sturdy and it heats up way faster than I expected. Just make sure the whole heating part is fully under the water before turning it on it gets HOT. I used it for heating up water in a bucket and it was warm in 5 minutes. The cord length is decent, and it’s easy to store when you’re done. Also, don’t let any part of the heating tube stick out of the water while it’s running, the box is right about that. It can overheat if it’s not submerged. Overall, for the price, it’s super convenient and does exactly what it says. If you need something quick and simple to heat water, this one works great. ... show more
Reviewed in the United States on November 21, 2025 by Bianca Vargas Bianca Vargas

  • Works great in this cold
I got this water heater to put in the troughs for my horses. This works amazing. It keeps enough of the water thawed out so that they have enoight water to drink and not get dehydrated. This water heater ia amazing. Definitely recommend this for outside water for animals.
Reviewed in the United States on January 1, 2026 by Nova

  • Heats Quickly and Works Great for Tubs and Buckets!
Number of Items: 1
This portable water heater is surprisingly powerful and heats water fast — perfect for filling up bathtubs, small pools, or large buckets. The digital thermometer is accurate and makes it easy to monitor the temperature. I love that it’s compact, easy to use, and the magnesium oxide heating element feels like a durable upgrade. Just make sure you follow the safety instructions and never plug it in until it’s fully submerged. Great tool to have on hand, especially for colder months or outdoor use! ... show more
Reviewed in the United States on November 11, 2025 by Joyce stoianov

  • 👌👌👌
Number of Items: 1
It heats up super fast depending on where you put it and the amount of water. For example, I put it in my bathtub and the water is hot in 10 minutes. It's super resistant and durable, and it's a medium size.
Reviewed in the United States on November 18, 2025 by Xiomara

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