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4 Gallon Water Heater Under Sink Instant Hot Water Heaters 1500W 110V 120V Mini Tank,Under Counter Water Heater with Safety Vavle 1/2" NPT for Kitchen,Bathroom,Camper,RV,White

  • Based on 16 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Jun 2
Order within 8 hours and 59 minutes
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Features

  • Rapid Hot Water Supply and Recovery-Kenuos 4 gallon water heater features a 1500W heating power and an upgraded L-shaped 316 stainless steel heating tube, enabling rapid heat conduction with a thermal efficiency of up to 98%. which makes our mini tank water heater can provide hot water in as little as 8 minutes,meeting your demand for a fast water heating solution
  • Customer Friendly 4 Gallon Water Heater-Our under sink water heater comes equipped with a 3-way diverter valve that splits the water flow into two, meeting multi-point water supply needs.It also includes two 24 inch 3/4" ID to 1/2" ID adapter hoses, solving the problem of pipe compatibility with different regional specifications.Additionally,a temperature and pressure relief valve and mounting kit are provided, eliminating the need for you to purchase any extra accessories
  • Safety Design and Exterior Patent-We always prioritize the safety and reliability.Kenuos mini tank water heaters have passed UL,CE,and DOE certifications.Coupled with a seamlessly welded high-strength body,enamel coating,and a temperature and pressure relief valve,making our under sink water heater leak-proof and corrosion-resistant,ensuring the safety of your person and property. and we have applied for exterior patents for all our products,meeting consumers' needs in terms of practicality and novelty
  • Durable Quality And Excellent-The water tank is made of high-quality materials, such as an enamel-coated glass-lined inner tank.It not only effectively prevents water leakage but also boasts excellent thermal insulation performance, reducing heat loss and saving energy.Meanwhile, it has strong corrosion resistance,which can extend the service life of under sink water heater.High-quality insulation materials and design are adopted to reduce heat loss from the hot water in the tank, ensuring that the water temperature is maintained even when the water heater is not in use for a long time
  • Large Capacity,More Uses-This 4 gallon water heater, despite its compact size, offers a relatively large hot water output. It can easily meet the hot water needs of various scenarios, such as providing enough hot water for washing dishes in a small kitchen, cleaning fruits and vegetables, or even for a quick hand - washing session in a bathroom
  • Precaution 1 for This 4 Gallon Water Heater-According to the questions raised by the customer based on the picture,if the pressure relief valve is not tightened and the waterproof Tape is not needed,it may increase the change of water leakage.It is recommended that you install the pressure relief valve and tighten it.If you have any problems or malfunctions,please notify us in a timely manner, and we will provide you with thoughtful after-sales solutions
  • Precaution 2 for This 4 Gallon Water Heater-When your water pressure exceeds 0.75 MPa,it may cause water leakage,which is a normal phenomenon.You need to equip the product with a pressure reducing valve and install it above the cold water outlet.Or replace a 0.9mpa T&P valve
  • Precaution 3 for This 4 Gallon Water Heater-Please fill the water heater with water before turning on the power for the first time. Otherwise, the internal overheat protection function will activate and the water heater will stop working. Do not immediately fill with water at this time. Please disconnect the power and wait for 10 minutes for the stainless steel tank to cool down before refilling with water

Brand: KENUOS


Capacity: 4 Gallons


Power Source: ac


Product Dimensions: 13.5"W x 13.8"H


Special Feature: Dry Combustion Protection, Easy to Install, High Water Pressure Protection, Overheat Protection, Pressure Release Valve See more


Power Source: ac


Special Features: Dry Combustion Protection, Easy to Install, High Water Pressure Protection, Overheat Protection, Pressure Release Valve


Wattage: 1500 watts


Voltage: 110 Volts (AC), 120 Volts (AC)


Flow Rate: 0.45 Gallons Per Minute


Maximum Temperature: 149 Degrees Fahrenheit


Heat Output: 1500 Watts


Efficiency: 98%


Maximum Pressure: 118 Pound per Square Inch


Mount Type: Wall


Is Electric: Yes


Color: White


Style Name: 4 Gallon Water Heater


Material Type: Acrylonitrile Butadiene Styrene, Stainless Steel


Brand Name: KENUOS


Model Number: SY-15


Manufacturer: KENUOS


Manufacturer Part Number: KENUOS 678


Included Components: 3-way valve for mini tank water heater, 4 gallon water heater, pressure release valve for 4 gallon water heater


Unit Count: 1.0 Count


Capacity: 4 Gallons


Item Dimensions W x H: 13.5"W x 13.8"H


Item Weight: 10 Pounds


Item Depth: 13.5


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 2

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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Top Amazon Reviews


  • Hot Water, Right Where You Need It
I recently installed this 120V, 1500W Electric Water Heater, and it’s been a wonderful for my home. This water heater provides a good supply of hot water whenever I need it. It takes up very little space, making it ideal for apartments or homes where space is at a premium. I have plenty of hot water for our kitchen sink, which seems miles from our gas water heater. I ran the hot water supply into the cold input of the this water heater, then out to the hot water side of the faucet. It works out excellently. Ease of use is key. The controls are intuitive, so there’s no real learning curve. Installation was straightforward as well. The instructions were clear, and I had it set up and running in no time. It’s designed for 120V. I’m a licensed electrician so I installed power myself. However, you will likely want to hire an electrician to ensure everything is properly grounded and bonded. This water heater has surpassed my expectations. I never run out of hot water. It’s also energy-efficient, which has already started to reflect positively on my utility bills. The consistent water temperature and reliable performance make it a great choice. Overall, this Water Heater is a fantastic investment. It’s compact, easy to use, and delivers exceptional performance. I highly recommend it! Great seller, awesome product, and fast shipping!! ... show more
Reviewed in the United States on February 17, 2025 by Bluesman

  • Measure your space.
This is the second in-line water heater we have ordered. I installed the first one under our kitchen sink which is a double wide cabinet with plenty of space. So when I ordered this unit for our guest bathroom, I didn't even think about checking the amount of space in our under sink cabinet. Big mistake. The Kenuos heater would not fit because of the small cabinet size and the sink drain which came down right in the middle of the cabinet. So in order to install the heater I had to totally redo the sink drain using an offset drain pipe made for these particular types of problems. I also had to fish wiring through the walls to get electricity to the heater. The final installation is shown in the photo. It turned out to be a much larger and more complicated job than the kitchen installation had been and I urge you to measure, measure, measure to be sure you have adequate space (over one cubic foot - heater measurements are shown in the produce description). The other small issue I had with the Kenuos heater is that while they do include flexible water connection hoses with the unit, only one of them has the correct fittings. The correct hose has a 3/8 compression fitting on one end (to attach to your shut off valve) and an NPT fitting on the other end (to connect to the input port of the heater). The other hose is exactly the same. But the second hose has to go from the output port of the heater (which is fine) and the other end connects to the hot water faucet inlet which is almost always a 1/2" NPT or MIP fitting. But the hose included in the kit is a 3/8" compression fitting. I was fortunate to have an adapter in my clutter of old plumbing parts but you will probably have to head out to a hardware store to find either an adapter or a different hose to connect up to your sink faucet. I suppose this isn't a huge issue since most installations are going to be a bit unique and you might assume you will need to buy a few extra parts and pieces to get things hooked up. Once installed, however, the Kenuos heater has functioned quite well and all-in-all was worth the extra effort needed to do get things to fit. But be warned, installation may not be for the amateur DIYer and you may want to bring in a pro...as is suggested in the product description. ... show more
Reviewed in the United States on March 2, 2025 by dewey dewey

  • Produces 4 gallons of hot water instantly. More than enough to use with your dishwasher.
Got this to use with our portable dishwasher. We installed a separate faucet even for the dishwasher before and now this is under the sink for it. It will supply all the water we need for the dishwasher and it is very effective. Compact in size approximately a foot by a foot. I can foresee a savings on not only water (the big tank won't have to fill plus gas used to heat it) and being energy efficient, that's value for your money right there and then some. We installed ourselves or should give a shout out to the hubby that installed it at his 71 years old. Said went smoothly so I'm going with that. I recommend this for your hot water kitchen needs. ... show more
Reviewed in the United States on February 20, 2025 by shivamuck

  • easy to use
This small water heater is quite practical, especially suitable for places like kitchens or bathrooms where you don't need to worry about the amount of water, but you want to have hot water at any time. The 4-gallon capacity is just right, enough for washing dishes or simple hand washing. The hot water comes quickly, and the 1500W power heating speed is not bad. You can have hot water in about ten minutes. The installation is relatively simple, with a 1/2" NPT interface, and there is no trouble to install it yourself. It is small in size and can be easily stuffed under the sink without taking up space. ... show more
Reviewed in the United States on March 2, 2025 by human X

  • Using for outdoor shower
This awesome little water heater is going to be the centerpiece of an outdoor shower I am building. I needed a small electric water heater with temperature control to add to my setup so I wouldn't be taking cold showers all the time. I do have to get some different adapters to hook up my hose line and I am going to offset the placement so it isn't right in the path of falling water, but I really like all the features and the build quality. This will be used outside, which I am a little worried about, but it will be under a porch, so I think it should be ok. I did plug it in to make sure it worked and no initial issues were noted. If you are hooking this up to a sink, all of the included hoses should fit and you shouldn't need anything else. If you are using it for something like my application, you will have to get adapters to run from your garden hose to the inlet and them the outlet to the valve the controls your shower. That is the part I am stuck on now. Will update when she is fully up and running, but so far so good with this setup. ... show more
Reviewed in the United States on March 9, 2025 by Amazon Customer

  • Could not install it
The unit seemed used and was missing some parts. I didn’t want to install a used one so I returned it.
Reviewed in the United States on February 23, 2025 by zaki algasem

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