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BISELONG

110V-120V 1440-1500W Small Under Sink Tank 2.5 Gallon Water Heater Hot Storage,Mini Instant Electric RV TR Trailer Kitchen Compact,Food Truck 2 PCs 16” Long 1/2”FIP Stainless Steel Hose (BI-2.5)

  • Based on 1,222 reviews
Condition: New
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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Nov 23
Order within 13 hours and 36 minutes
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Model: BI-2.5G


Features

  • Rapid Temperature RecoveryThe BISELONG water heater is made from 0.04inch (1.1mm) thick 304 stainless steel and uses laser welding technology, ensuring it never rusts, withstands high pressure, and doesn't leak! The 1500w "L" shaped heating element increases the heat exchange area with the water in the tank, speeding up the heating process and eliminating the long wait for hot water beside the sink! (It can heat up to your desired temperature in 8-15 minutes for up to two sinks at a time).
  • Energy-Saving Smart InverterAutomatically keeps water warm and stores hot water. The compact 2.5-gallon tank can be installed under the sink, with a thermal efficiency of 99% and a maximum temperature of 149F. It has a built-in smart chip that heats to the temperature you set, and when it reaches the desired temperature, it automatically insulates to keep the heat in.Additionally, it helps reduce scale buildup!
  • Compact Design Saves SpaceBISELONG has always been committed to original design! Its compact, square design makes this water heater ideal for homes, under sinks, RVs, food trucks, and more. It can be installed in cabinets or used in conjunction with washing machines and dishwashers. The product dimensions are 13.0''L x 11.4''W x 10.6''H inches.
  • Easy InstallationWater connection tube is 1/2''FPI, electrical requirements: 120v (AC), single voltage: 1500w with plug connection wire, maximum water pressure 108PSI, recommended circuit breaker rating: 15Amps, BISELONG electric water heater can be installed on walls or floors, in a concealed position.
  • Safety protection Certified by CE, ROHS, and FCC for safety and reliability. Electrical insulation at the entrance/exit. Leak proof plug. High quality insulation material with high temperature limiting device and automatic temperature control. Multi layer protection ensures safety.
  • Product UpgradeOn June 25, 2023, the product was fully upgradedthe water heaters 304 stainless steel lining will be thickened to 0.04 inches (1.1 millimeters), providing a longer service life, and the unit weight increased to 8.4lbs (3.8 kilograms). The insulation material and foam insulation were replaced, improving the Improved insulation effect, making it more energy-efficient!
  • Customer ServiceIf there are any quality issues with the product or problems with installation, you can contact us at any time. Our customer service is online for 16 hours!!
  • NoteDue to the improvement in product quality, the warranty period for water heaters purchased after July 4, 2023, is 2 years. According to buyer feedback, some water heaters had quality issues. Based on the photos provided by the buyers, it was found that they mistakenly installed the pressure relief valve at the outlet (red end)!

Description

Color:BIS02-White (no remote control) FEATURES Mini-Tank Water Heater comes with 1.5kW heating element, expect hot water for 3 seconds, perfect choice for sinks to provide endless hot water any time. ENERGY SAVING This tankless water heater avoids standby heat loss of those bulky storage water heaters, minimize energy waste and achieve 95% energy saving with help of its smart self adjustment technology. HEALTHY WATER QUALITY MULTIPLE SAFETY PROTECTIONS Over temperature protection Dry heating protection Leakage protection Water and electricity line separated EASY INSTALLATION Real compact design, water heater cooridates with scenes decor, under sink water heater, Can be shelf, wall or floor mounted. Comes with easy installation brackets, pipe fitting of 1/2" NPT and 10AWG power cord(fixed to the unit) so you don't to have to hire a plumber even if you can do it. SPECIFICATIONS Power: 1.5kW Voltage: 120V~50Hz Min. water flow to activate the unit: 0.475GMP Maximum temperature 149°F Max. Amperage: 15A Recommended wire size: 10AWG Required circuit breaker : 1x1-Pole 20 AMP KINDLY NOTE 1.The equipment is mainly used for sinks. 2.Mini-tank water heater should be installed professionally. 3.Please read instruction manual carefully prior to installation and use!

Brand: BISELONG


Product Dimensions: 11.2"W x 11.8"H


Special Feature: Overheat Protection, Rustproof


Color: White


Wattage: 1500 watts


Brand: ‎BISELONG


Product Dimensions: ‎11.2"W x 11.8"H


Special Feature: ‎Overheat Protection, Rustproof


Color: ‎White


Wattage: ‎1500 watts


Voltage: ‎120 Volts


Maximum Temperature: ‎149 Degrees Fahrenheit


Heat Output: ‎1500 Watts


Efficiency: ‎98%


Style: ‎Protection,Safety,Thermal


Maximum Operating Pressure: ‎108 Pound per Square Inch


Mounting Type: ‎wall mount or shelf mount


Is Electric: ‎Yes


Manufacturer: ‎BISELONG


Item Depth: ‎10.6 inches


UPC: ‎708257587205


Manufacture Year: ‎2023


Item Weight: ‎9.5 pounds


Item model number: ‎BI-2.5


Size: ‎13.0 x 11.4 x 10.6 inches


Item Package Quantity: ‎1


Special Features: ‎Overheat Protection, Rustproof


Included Components: ‎T-tube, hose, safety valve


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: January 1, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 23

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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Similar Products

Top Amazon Reviews

    • WOW! If you need a small water heater, BUY this one! Hot Water, GREAT customer service!
Model: BI-2.5
I had seen a couple of reviews by others, saying poor (or non-existent) customer service, low quality, didn't work, etc. But I was on a budget, in a hurry, and ordered it anyway. Took about 30 minutes to install (had to clean under my sink, first, LOL). Heater was great! hot water instantly, very satisfied. Then, about 6 months later, went to wash dishes, no hot water... checked all connections, power cord, everything looked OK, red light for HEATING was on, but nada. So, I went to work to get a warranty replacement. 7:29pm, Sunday, August 24, 2025 Sent message to seller telling them it went bad, requested replacement under warranty 8:06pm, Sunday, August 24, 2025 Received message from seller, requesting picture of heater 8:29pm, Sunday, August 24, 2025 Sent picture of heater to seller 8:48pm, Sunday, August 24, 2025 Received message from seller, instructing me to order replacement, and to let them know when the replacement was received; they would then issue a full refund. 6:20pm, Tuesday, August 26, 2025 Received replacement heater, sent message to seller * 6:58pm, Tuesday, August 26, 2025 Received message from Seller, full refund was issued. Now, I was in the retail auto parts business for many years, and I know that occasionally parts, gears, motors, etc. do go bad. Its not necessary poor quality, or poor quality control. Sometimes, S*** Happens. As I mentioned earlier in this review, I was very satisfied with the heater, instant hot water, worked great, happy with my purchase. But, S*** Happened.... I very seldom write reviews about purchases on Amazon, and even less often do I review customer service, mainly because I have not had any problems with customer service, either from Amazon or other sellers. But I had to write a VERY POSITIVE REVIEW on this product, and the GREAT CUSTOMER SERVICE from the seller! Just imagine, less than 48 hours to resolve the issue and have a warranted replacement in my hands! It don't get much better than that, folks! ... show more
Reviewed in the United States on August 27, 2025 by Bob Heckman
    • Small Under Sink Tank
Model: BI-2.5
Excellent mini water heater — compact, powerful, and perfect for small spaces. Use: Ideal for sinks in bathrooms, RVs, offices, or kitchens where quick hot water is needed. Provides instant and consistent heat. Ease of Use: Simple to install with standard plumbing connections. Heats up quickly and maintains temperature well. Quality: Solid build, durable tank, and efficient heating element. Feels sturdy and dependable. Value for Money: Great value — affordable solution compared to full-sized water heaters, with excellent performance. Functionality: Heats water fast, maintains stable temperature, and operates quietly. Energy-efficient and reliable. Look: Compact and clean design that fits neatly under the sink without taking much space. ⭐ Highly recommended! Heats quickly, works flawlessly, and perfect for small hot water needs. ... show more
Reviewed in the United States on October 26, 2025 by Yessica Blanco
    • Works fine at first.
Model: BI-2.5
This is a nifty little heater and it worked great at first. It was very easy to install and it provided fast, hot water as expected. However it began leaking at the top of the pressure release valve, and when I looked into the issue, it turned out the gasket on my hose was bad. That wasn't a big deal, but as I was tightening the new hose on to the pressure valve, the brass snapped at the pipe threads. I've never seen a hand-wrenched brass fitting break in my own hands like that before, and the the valve design appears proprietary so not easy to find a replacement. So, in summary, it's a good little heater, but the hardware is junk. Update: I replaced everything sealing every leak on top. Now it is leaking from the bottom. This product is garbage. ... show more
Reviewed in the United States on April 14, 2024 by JBerc
    • Perfect Little Water Heater for My RV – Fast Heating & Reliab
Model: BI-2.5
Review Image by sharrell sharrell
Installed this in my RV a few weeks ago and it’s been great. Heats up quickly, keeps the water at a steady temperature, and the 2.5-gallon capacity is perfect for daily use like washing hands, dishes, or light cleaning. It doesn’t take up much space, and installation was straightforward – just hooked up the water lines and plugged it in. It stays secure while driving, with no leaks or movement. A solid choice for RVs, boats, or any small space. ... show more
Reviewed in the United States on August 14, 2025 by sharrell sharrell
    • good buy but read reviews before buying
Model: BI-2.5
Helps when you're in a pinch. read reviews first and purchased item. purchased it because I had to get for water line fixed. did not put dial all the way to hot. placed it a bit over half, and no issues with tripping the breaker and the water was warm you mildly hot good for a shower. this water heater worked as described but check reviews from other purchasers describing the unit tripping the breakers. I did not have that problem but I did use appliance/contractor grade cord. works going to install outside to give my dogs a warm water bath. overall I would say good investment. I understand from most reviews this companies customer service is horrible, really can't verify that but I don't expect this item to work past a year from what I read. just came in good when I needed it ... show more
Reviewed in the United States on October 19, 2025 by RCD
    • Best Ever
Model: BI-2.5
I almost never write reviews unless I feel a product is exceptional. This item is exceptional. It does everything right. It’s easy to install, with no special power requirements, sized to fit easily under a sink, has simple controls needed to provide whatever temperature you require. I have mine under the kitchen sink. Before I got this unit, I had two choices to wash my hands. Either let the water run for a long time to let warm water arrive, or wash my hands in frigid water. Neither was acceptable. Now I simply turn on the hot water and within seconds I get the correct preset water temperature for hand washing. Nice! In my opinion, it is one of the best items I’ve ever purchased, and it’s only $100. ... show more
Reviewed in the United States on February 6, 2025 by Donald D.
    • Value for money
Model: BI-2.5
I have received the Small Under Sink Tank Water Heater I bought. My husband installed it himself. It is very easy to operate. The merchant has complete accessories and beautiful appearance. The water temperature can be displayed and can be adjusted automatically. As soon as the faucet is turned on, hot water comes out. It is so convenient. I must give it a thumbs up. It is really good value for money. ... show more
Reviewed in the United States on October 27, 2025 by braden

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