Portable Water Heater 2000W, Pool Heater - Immersion Heater with Digital Thermometer, Upgraded Magnesium Oxide Heating for Fast Heating, for Small Pools, Bathtubs, Buckets, Tanks
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
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 5 left in stock, order soon!
Arrives
Saturday, Dec 20
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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
Product Dimensions : 10 x 2 x 2.7 inches; 11.2 ounces
Item model number : RSB02
Date First Available : June 24, 2025
Manufacturer : FIVECUBS
Best Sellers Rank: #2,081 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #1 in Lab Immersion Heaters
#1 in Lab Immersion Heaters:
Customer Reviews: 4.0 4.0 out of 5 stars 121 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Dec 20
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
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.
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Reviewed in the United States on November 20, 2025 by Shaan K Shaan K
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.
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Reviewed in the United States on November 25, 2025 by Igor Perru
Number of Items: 1
DANGEROUS PRODUCT - DO NOT BUY!! Was electrocuted when I went to take it out of the bucket of water it had been in for only an hour. Used daily for an hour or so for one week and then suddenly electrocuted. Looked into the metal core and the heating rods were BURNED through. My right arm is still numb. There was no misuse or mishandling of this product on my end. I have owned several throughout the years. This one lasted one week and almost killed me.
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Reviewed in the United States on November 20, 2025 by KRISTINA
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.
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Reviewed in the United States on November 13, 2025 by AW AW
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.
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Reviewed in the United States on November 21, 2025 by Bianca Vargas Bianca Vargas
Number of Items: 1
This portable water heater is awesome! It heats water quickly and the digital thermometer makes it easy to monitor the temperature. I use it for heating water when camping, and it works exactly as described. Super convenient and reliable.
Reviewed in the United States on November 15, 2025 by Jen C
Number of Items: 1
Most of the people in here have said that it heats fast and that it came with two mine only came with one not two and I’ve had it in my bathtub, which is very shallow for almost 40 minutes and it’s only at 70°. My water heater is broken and I just need to be able to take a warm bath cause I’m currently dealing with pneumonia, but this is taking a very long time all of these People who have written reviews said it was very fast. It’s not heating very fast at all and again only came with one even though one of the pictures even shows two in a bathtub and most of the reviews say that two came in a package.
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Reviewed in the United States on October 27, 2025 by thequeenbeesus
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