4 Gallon Electric Mini Tank Water Heater, 110V 1500W Point of Use On Demand Under Sink Instant Hot Water Heater for Home Kichen Bathroom
Condition: New
Buy Now, Pay Later
As low as
$23.33
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Sunday, Mar 29
Recently Viewed
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
Capacity: 4 Gallons
Power Source: ac
Product Dimensions: 16.4"W x 11.8"H
Special Feature: Dry Combustion Protection, High Water Pressure Protection, Leakage Protection, Overheat Protection
Brand: Nessxa
Product Dimensions: 16.4"W x 11.8"H
Special Feature: Dry Combustion Protection, High Water Pressure Protection, Leakage Protection, Overheat Protection
Color: White
Wattage: 1500 watts
Voltage: 110 Volts
Maximum Temperature: 176 Degrees Fahrenheit
Heat Output: 1500 Watts
Efficiency: Energy Efficient
Style: 4 Gallons
Mounting Type: wall, floor
Is Electric: Yes
Manufacturer: Nessxa
UPC: 631060186863
Part Number: YYJ24039-3N
Item Weight: 22 pounds
Item model number: YYJ24039-3
Item Package Quantity: 1
Special Features: Dry Combustion Protection, High Water Pressure Protection, Leakage Protection, Overheat Protection
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:
Sunday, Mar 29
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Top Amazon Reviews
Style: 1.6Gallons
I’ve been genuinely impressed with how this electric water heater performs. From the moment I installed it under my sink, I noticed hot water much faster than I expected. It’s compact yet powerful, and it fits perfectly in small spaces like my RV kitchen without eating up room. The temperature gets nice and hot quickly, and I love not having to wait for warm water anymore this little unit delivers exactly what it promises. And for a fair price I’d say. What stands out most is how easy it was to set up. Everything I needed was included, and I had it up and running in no time without any professional help. The build feels solid and well made, and the controls are intuitive. It’s clear that this isn’t a flimsy gadget but something designed to work reliably day after day. Even with frequent use, it hasn’t missed a beat and continues to heat water consistently. Overall, this has been one of the best upgrades I’ve added to my space. It’s saved me water, time, and frustration, and it’s ideal for anyone needing instant hot water in a smaller area like a kitchenette, bathroom, or RV. I’ve recommended it to friends and family already because it simply performs beautifully and delivers comfort exactly where you need it. I’ve heard of some people even using it in there studio apartments by the way so this can have lots of applications of where it’s used.
...
show more
Reviewed in the United States on January 15, 2026 by Dylan Springstun
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
We installed this 1.8-gallon mini tank water heater in the corner of our kitchen next to the sink, and it has made a huge difference! Before, our main water heater was in the garage, so I had to wait 3–4 minutes for the hot water to reach the kitchen. A lot of cold water was wasted just waiting. Now, thanks to this compact and efficient unit, I get instant hot water whenever I need it. It solved the issue of water cooling down in the pipes, and it’s been working flawlessly since installation. Very easy to set up and doesn’t take up much space. Highly recommend this if you’re looking for a quick, energy-saving way to get hot water exactly where you need it!
...
show more
Reviewed in the United States on September 9, 2025 by N.В.
Style: 1.6Gallons
I'm so happy to finally have instant hot water in my Florida home. I've already installed it in my bathroom. This 1.6-gallon mini tank water heater, a 1500w storage water heater, is small but powerful. It works perfectly, without any problems, and was easy to install.
Reviewed in the United States on January 9, 2026 by Florence Doty
Style: 2.65 Gallons
This review is for the 1.6 gallon unit. I returned the 2.65 unit since it was larger than described in the ad and didn't fit under my sink. I am very pleased with this unit. It fits perfectly under the sink, was fairly easy to install and works like a charm. It heats rapidly. The digital display is bright and easy to read, although it reads in Celsius and not Fahrenheit. It is completely silent, too. For criticisms, it's Chinese made and doesn't even have the manufacturer's name on it. The directions are very inadequate and poorly translated. It says to descale the heating rods yearly, but doesn't give you a clue as to how. It also mentions draining the unit if it won't be used for a long term, but the is no drain plug. There is a round piece on the back of the unit that rotates. There is no mention of what this is or why it's there. Also, there is a pressure relief valve included. The picture of the unit in the ad shows it attached on the top between the inlet and outlet, but there is no connection point on the actual unit. I made the assumption to attach on the inlet side. All that said, the unit is working fine and hopefully lasts a long time.
...
show more
Reviewed in the United States on December 9, 2025 by Jack Mandel Jack Mandel
Style: 2.64Gallons
Work out great, l used it on my rv still working strong. Fit perfect for my application. Set the temp at the middle on the temp nub. Works great holds good amount of water for my application.
Reviewed in the United States on February 10, 2026 by Fair Critic
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