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4 Gallon Electric Mini Tank Water Heater, 110V 1500W Point of Use On Demand Under Sink Instant Hot Water Heater for Home Kichen Bathroom

  • Based on 56 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sep 12 – Sep 13
Order within 17 hours and 58 minutes
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Style: 4 Gallons


Features

  • 24H INSTANT HOT WATER - Our mini tank water heater delivers hot water instantly at your sink. With a 4 gallon tank, it provides instant hot water on demand, reducing wait times and water waste. The high-density polyvinyl chloride integral foaming process can uniformly heat the entire internal storage tank, improving durability and performance.
  • SAVING ENERGY & TEMPERATURE CONTROL - Our under sink water heater has a temperature adjustment range of 77 F -176 F (25 C -80 C). You only need to rotate the knob on the electric water heater panel according to your needs. When the water temperature in the instant hot water heater is below 77 F/25 C, the mini tank water heater will be in standby mode, maximizing energy and power savings. The adjustable thermostat allows you to set your desired water temperature, providing maximum comfort and convenience.
  • EASY USE & SAFETY MATERIAL - With a mini tank compact design, can be wall or floor mounted under sink or counter. The exterior of the small tank water heater is made of ABS material, and the internal tank body is made of stainless steel material, achieving the separation of water and electricity, ensuring that you can safely use the point of use under sink water heater, which ensures fast heating speed of the water heater.
  • APPLICABLE SCENARIOS - Our under sink water heater, with its outstanding performance and wide applicability, has become the ideal choice for various scenarios, including homes, hotels, restaurants, and hospitals, ensure a reliable 24-hour hot water supply in the cold winter.
  • WHAT YOU GET - You will receive a high-performance electric storage water heater with a complete accessory kit and a detailed instruction manual. NOTE: To avoid installation errors that may affect your use, please have a professional install this water storage heater.

Description

4gallon water heater

Brand: Nessxa


Product Dimensions: 16.4"W x 11.8"H


Color: White


Wattage: 1500 watts


Voltage: 110 Volts (AC)


Brand: ‎Nessxa


Product Dimensions: ‎16.4"W x 11.8"H


Color: ‎White


Wattage: ‎1500 watts


Voltage: ‎110 Volts (AC)


Manufacturer: ‎Nessxa


UPC: ‎631060186863


Part Number: ‎YYJ24039-3N


Item Weight: ‎22 pounds


Item model number: ‎YYJ24039-3


Item Package Quantity: ‎1


Included Components: ‎colloidal particle*1, drain hose*1;hook screws*2, instruction book*1, sealing washers*2, storage electric water heater


Batteries Required?: ‎No


Date First Available: June 23, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 12 – Sep 13

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
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Compact and reliable
Style: 2.65 Gallons
I’m very impressed with this little water heater! The Nessxa 2.65-gallon unit was easy to install under my sink and works exactly as advertised. It heats up quickly and maintains a consistent temperature—perfect for washing hands, doing dishes, or even small laundry tasks. The digital display and adjustable temperature dial are convenient and user-friendly. It’s compact but powerful, and the 1500W element gets the job done fast. Great for saving space and avoiding long waits for hot water from a distant main heater. Highly recommend for anyone needing a reliable point-of-use solution. ... show more
Reviewed in the United States on August 7, 2025 by Christy Murphy Christy Murphy

  • Instant Hot Water Where You Need It
Style: 8 Gallons
With a 1500W heating element and 110V design, it quickly delivers reliable hot water right at the point of use—perfect for under-sink installation in kitchens, bathrooms, RVs, or utility rooms. The compact size makes it easy to fit in tight spaces, while the 8-gallon capacity ensures enough hot water for multiple uses such as washing dishes, handwashing, or quick clean-ups. It heats efficiently, maintains steady water temperature, and reduces the waste and energy cost of running water through long plumbing lines. Installation is straightforward, and once set up, it provides consistent, on-demand performance. For households, small apartments, or RV owners needing convenience and efficiency, this mini tank water heater is a reliable upgrade that adds comfort and saves time. ... show more
Reviewed in the United States on August 20, 2025 by Han-koo Yeo

  • Solid water heater!
Style: 8 Gallons
This solid little unit does the job perfectly. I got this for the guest house that didn’t have a kitchen and it’s been working great. Heats up quickly, water stays hot, and it was pretty easy to install. It’s compact but still gives you a solid 8 gallons, which is more than enough for what I need. Perfect for when you don’t want to wait forever for the main water heater to kick in. It’s small, but not tiny so you should check were you’re putting it. Also, make sure the wiring and breaker can handle the Watts. Overall, definitely worth it if you want instant hot water without the hassle. ... show more
Reviewed in the United States on July 31, 2025 by gaston testa

  • a powerful machine
Style: 2.65 Gallons
This compact electric water heater is super good. Installation was simple, and with its 1500 W, it heats up quickly, ideal for washing hands, dishes, or small daily tasks. It's efficient, quiet, and doesn't take up much space. An excellent solution for saving time and energy at home.
Reviewed in the United States on August 8, 2025 by Norelvis

  • Instant Hot Water Hero: The 8-Gallon Electric Mini-Tank Heater
Style: 8 Gallons
This 8-gallon electric mini-tank water heater is a game-changer for instant hot water where you need it most! Its compact size is perfect for under-sink installation in kitchens or bathrooms, delivering 110V 1500W of power for rapid heating and on-demand hot water. Say goodbye to long waits for hot water at specific faucets – this unit provides a continuous and reliable supply, significantly improving convenience and reducing water waste. For optimal performance, ensure proper venting and consider insulating the hot water lines leading from the unit to maximize efficiency. There's no leakage either. This is an excellent, cost-effective solution for point-of-use hot water, making everyday tasks much more pleasant. ... show more
Reviewed in the United States on July 23, 2025 by Hamza

  • Great invention
Style: 2.65 Gallons
*UPDATED* STOPPED WORKING AFTER A WEEK COMPLETELY. WONT EVEN ATTEMPT TO WORK! Very cool tool, that works great in seconds. My older 'instant' hit water boiler took a long time to get hot water to my upstairs sink so I decided to take a chance on this and it worked out great! Very easy to install and adjust. Energy efficient and fast! The water temperature is easy to control so you dont get burned. 10/10 homerun! ... show more
Reviewed in the United States on August 8, 2025 by Ty

  • Minimal and effective water heater!
Style: 4 Gallons
I installed the Nessxa mini water heater under my sink. It heats water quickly and fits well in tight spaces. Setup was simple, and it works with my 110V outlet. It provides enough hot water for daily use without wasting energy. A solid, compact option if you need instant hot water without a big tank. ... show more
Reviewed in the United States on August 10, 2025 by MK

  • Hot water in seconds. Easy to use. Highly recommend.
Style: 1.8 Gallons
Excellent quality product. Cool design. Good functionality. Warmed up water in a seconds. Comes with everything you need. Easy to install and easy to use. I installed large water filter and now ready for clean, hot water. No leakage. Affordable price.
Reviewed in the United States on July 21, 2025 by Menlipe M

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