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Electric Water Heater 2.5 Gallon Mini Tank Hot Water Under Sink Instant for Kitchen Bathroom 110V 1500W, Wall or Floor Mounted, Easy to Install

  • Based on 18 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Mar 23
Order within 2 hours and 54 minutes
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Color: White


Size: 2.5G


Features

  • [Instant Hot Water & Rapid Heating] Mini tank water heater rapidly heats water, saving your wait time and efficiently meeting your hot water needs. The 316 stainless steel heating element achieves up to 99% heat utilization. Temperature is adjustable from 86-150F for simple, convenient operation.
  • [High Quality&Durable]This under sink water heater is made of thick 316 stainless steel, With a high-temperature multi-layer that ensures this water heater is corrosion-resistant, rust-resistant, and strong pressure bearing. The water heater contains a T&P valve for high-pressure protection.
  • [Safety Protection] This water heater with electrical insulation on inlet/outlet bietet leakage protection plug. High-temp limiting device and adjustable temperature control features multiple layers of protection for safety.
  • [Easy to Install & Use] Electric water heater can be wall-mounted, rack, or floor options, with a hidden install. The design is for easy installation with 1/2" NPT water pipe connections. With this portable water heater, you can easily install and quickly obtain hot water.
  • [Widely Use] our instant water heater adopts a compact design, saving space. It can be installed under the sink. Highly suitable for RVs, camping, and other locations needing hot water supply, like kitchens, bathrooms, garages, food trucks, offices, and salons.

Brand: NUANBO


Capacity: 2.5 Gallons


Power Source: ac


Product Dimensions: 10"W x 13"H


Special Feature: Rapid Heating, High-Quality Stainless Steel Construction, Multiple Safety Protections, Easy Installation, Compact Design See more


Brand: ‎NUANBO


Product Dimensions: ‎10"W x 13"H


Special Feature: ‎Rapid Heating, High-Quality Stainless Steel Construction, Multiple Safety Protections, Easy Installation, Compact Design


Color: ‎White


Wattage: ‎1500 watts


Voltage: ‎110 Volts


Maximum Temperature: ‎150 Degrees Fahrenheit


Mounting Type: ‎Wall


Is Electric: ‎Yes


Manufacturer: ‎NUANBO


UPC: ‎797457757082


Item Weight: ‎9.98 pounds


Item model number: ‎RC25G


Size: ‎2.5G


Special Features: ‎Rapid Heating, High-Quality Stainless Steel Construction, Multiple Safety Protections, Easy Installation, Compact Design


Included Components: ‎‎Rough Plumbing;Parts and Repair;water-heaters


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: April 8, 2025


Frequently asked questions

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

  • Klarna Financing
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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


  • Great little water heater
Color: White Size: 2.5G
I’m really impressed with this mini water heater. Installation was straightforward and easy. The heating is very fast – we get hot water almost instantly, which is perfect for our bathroom sink. The compact design is a big plus. It fits perfectly under our sink without taking up much space and looks neat. Overall, it’s an efficient, space-saving solution for small bathrooms or kitchens. Highly recommend! ... show more
Reviewed in the United States on August 27, 2025 by Conan

  • Wonderful
Color: White Size: 4G
Excellent, I hooked it to my kitchen sink very easily. And it works awesome!
Reviewed in the United States on February 4, 2026 by Douglas Finch

  • Works well for kitchen sink
Color: White Size: 2.5G
Installed under kitchen sink which was a long run from my whole-home water heater. It delivers hot water immediately to my sink and dishwasher and lasts long enough until my big water heater takes over. I hard-piped the pressure relief valve to the nearby drain cleanout to handle any leaks. It heats the 2.5 gallons to 100F in about 3 minutes. The compact size it very nice and it fits well. Easily adjustable with a single knob and digital temp readout. Installation instructions were very lacking which is why I removed a star. ... show more
Reviewed in the United States on February 3, 2026 by Blake Daniel Gremillion Blake Daniel Gremillion

  • Instant Hot Water Made Easy Perfect for Kitchen Use
Color: White Size: 2.5G
I installed this 2.5-gallon mini electric water heater under my kitchen sink, and it’s been a game changer for washing dishes. No more waiting for the main water heater to kick in, hot water is ready almost instantly. The size is compact, good looking design, Installation was pretty straightforward with clear instructions. I tested for few weeks now, it works great so far, I will mounted it on the wall later in order to keep the floor space free. The water gets hot quickly and stays hot long enough for light kitchen tasks. Great little upgrade for convenience and efficiency! ... show more
Reviewed in the United States on August 20, 2025 by ArciaShoper ArciaShoper

  • Not a bad little water heater
Color: White Size: 2.5G
For the nerds out there... I tested the performance and here are the results (Amateur) I used a hose with 57 deg f Supply water. set the heater at 131 deg F. it draws 13.8 amps (1620 Watts) I ran the water at approximately 1.0 gallons per minute, and the temp dropped to 66 deg F after 4 minutes of running and held at that temp. These are not scientific results, and I make no clams for their accurately. ... show more
Reviewed in the United States on January 15, 2026 by John Hart

  • Disappointed.
Color: White Size: 2.5G
Would heat up but turn cold quickly when used. Waste of money.
Reviewed in the United States on February 15, 2026 by Jerry w lee

  • Easy replacement for the Bosch type glass lined heaters
Color: White Size: 2.5G
What an easy install to replace the latest of the many failed Bosch glass lined heaters I've had since 2007. It installs using standard 1/2" FIPT braided fittngs that made the replacement a breeze. After flushing the system it was turned on to medium heat and came up to 123 degrees within minutes. It's a great upgrade from the old Bosch type heaters that require dielectric connectors using hard copper lines.because of dissimaler metals. The all stainless heater does not need that addded install complexity. I'm looking forward to a longe service life created by the all stainless steel design. ... show more
Reviewed in the United States on November 5, 2025 by MikeC

  • Great value for light duty needs
Color: White Size: 2.5G
Seems very nice for the price. Was very easy to install and after plugging it in to a 120V outlet I was making hot water pretty fast. It's great for hand washing or small use but if you run it for very long you'll run it out of hot water. The good news is it recovers pretty quick and I only use it at my shop for hand washing and cleaning up coffee mugs etc so it's great for light duty use. Have to wait and see the long term but so far seems very nice. ... show more
Reviewed in the United States on February 17, 2026 by David C. Herring

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