2.5 Gallon Mini Tank Water Heater,Under Sink Instant Hot Water,1500W 120V Small Water Heater 1/2" NPT for RV,Kitchen,Compact Design with T&P Valve,Wall/Floor Mounted White
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
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.
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Availability:
Only 1 left in stock, order soon!
Arrives
Tuesday, Nov 25
Color: White
Style: 2.5 Gallon with T&P Valve
Features
- Customer Friendly 2.5 Gallon Water Heater:KENUOS 2.5 gallon water heater has upgraded an independent pressure relief valve.besides,this 110v small water heater is filled with cpc free foam inside.not only does it focus on the safety performance during use,but it also pays attention to the energy-saving and insulation effect of small water heater.this small water heater is ideal choice for customers
- Adjustable Temperature:KENUOS 110v water heater supports knob adjust,range from 86f to 150f temperature control,making temperature adjustment more intuitive and convenient
- On Demand And Perfect Insulation:This 110v small water heater supports fast heating.it's thermal efficiency is up to 95%,providing on demand hot water in 3-6 minutes,instant hot water is always at point of use.polyurethane cfc-free filling layer greatly improved insulation performance.it not only improves your hot water usage experience,but also saves you energy expenses
- Easy To Install And Widely Use:This mini tank water heater is compact designed and supports wall mounted and floor mounted,saving more space and can be installed under sink,counter,cabinet or in rv.it is suitable for 1/2" npt water hose connection and 110v/120v ac power supply.extended water hoses,vent vavle,transprent water conduit pipe are included.making it convenient and widely to use
- Durable Quality And Excellent Security:KENUOS 2.5 gallon instant hot water heater has adopted security designs.integrated molding stainless steel tank,overheat protection design,leakproof pressure release valve,ul certificated cord.excellent manufacturing processes and safety design are aimed at maximizing the improvement of your product user experience
- Precautions for Under sink Instant Water Heater : According to the questions raised by the customer based on the picture, if the pressure relief valve is not tightened, it may cause 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
Brand: KENUOS
Product Dimensions: 11.4"W x 11.4"H
Special Feature: Easy to Install, High Water Pressure Protection, Overheat Protection, Pressure Release Valve, Rustproof See more
Color: White
Wattage: 1500 Watt-hours
Brand: KENUOS
Product Dimensions: 11.4"W x 11.4"H
Special Feature: Easy to Install, High Water Pressure Protection, Overheat Protection, Pressure Release Valve, Rustproof
Color: White
Wattage: 1500 Watt-hours
Voltage: 110 Volts (AC)
Maximum Flow Rate: 0.45 Gallons Per Minute
Maximum Temperature: 149 Degrees Fahrenheit
Efficiency: 95%
Maximum Operating Pressure: 108 Pound per Square Inch
Mounting Type: Wall Mounted or Floor Mounted
Is Electric: Yes
Manufacturer: KENUOS
Item Depth: 11 inch
Part Number: 2.5 Gallon Water Heater 754
Item Weight: 9.78 pounds
Item model number: 2.5 Gallon Under Sink Water Heater
Item Package Quantity: 1
Special Features: Easy to Install, High Water Pressure Protection, Overheat Protection, Pressure Release Valve, Rustproof
Included Components: Female Water Pipe to Female Water Pipe x 2, Installation Bracket x 1, Mini Tank Instant Hot Water Heater x 1, Pressure Release Valve x 1, Screws x 2
Batteries Included?: No
Batteries Required?: No
Date First Available: August 6, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Nov 25
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.
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Top Amazon Reviews
CONVENIENT SIZE FOR UNDER SINK USE The KENUOS 2.5 Gallon Instant Hot Water Heater is designed to fit easily under the sink, and it truly delivers on that front. Its compact size is perfect for small spaces – I installed it in my kitchen, and it fit neatly without taking up much room. For anyone looking to get hot water quickly without needing a full-size heater, this mini tank is a practical solution. QUICK HEATING BUT LIMITED CAPACITY With a 1500W heating element, this water heater gets the water hot pretty quickly. Within minutes, I had piping hot water available, which is impressive for its size. However, with a 2.5-gallon capacity, it’s best suited for smaller tasks, like washing dishes or rinsing produce. For extended hot water use, like filling up a larger sink or running continuously, it may run out of hot water quickly and need a bit of time to reheat. EASY INSTALLATION Installation was straightforward, and the 110V power makes it accessible for most home setups. I had everything up and running in under an hour, and it didn’t require any special tools or additional fittings beyond the basics. This makes it a great choice for a DIY installation if you’re comfortable with some basic plumbing. PERFORMANCE & EFFICIENCY For smaller applications, it performs well, delivering consistent hot water on demand. It maintains a steady temperature, and I didn’t notice any significant fluctuations while using it. However, it’s worth noting that because it’s on the smaller side, the 2.5-gallon tank is limited in terms of sustained hot water supply. VALUE FOR MONEY For the price, the KENUOS Mini Tank Water Heater is a solid choice. It’s budget-friendly, and if you’re looking for a quick, efficient hot water source under the sink, it does the job without breaking the bank. But if you have higher hot water demands, you might find the capacity a bit lacking. FINAL VERDICT Overall, the KENUOS 2.5 Gallon Instant Hot Water Heater is a compact and efficient option for point-of-use hot water in smaller areas. It’s quick, easy to install, and a great solution for small households or light kitchen tasks. Just keep in mind its limited capacity if you need a larger supply of hot water. For the price, it’s a worthwhile investment that performs well within its intended use.
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Reviewed in the United States on November 7, 2024 by Adam Smith
Color: White
Style: 4 Gallon with T&P Valve
I had already ordered one of these for the small bathroom in my husbands shop. It worked out so well, since we don't have access to hot water that far away from the house, that I ordered another unit for a dog wash project on my back patio. Installation is super simple! Literally all you need is an electrical outlet and access to a water outlet in order to use one of these tankless water heater units. You can store one away in a cabinet or leave it out in the open with it's sleek design and quit operating function. The size is perfect and they are super light as I am able to carry this and place it with no issues. It has a dial on the front which allows you to control the water temp on the fly, or you can leave it set to the desired water temp for endless flow of temperature controlled water with no heat fluctuation. What I absolutely love about these tankless water heaters is they end up paying for themselves in the end with the ability to save energy. I can tell you this for a FACT as we have had a whole house system installed for the past 12 years now. Nothing like ENDLESS hot water! We will NEVER have a hot water tank again!
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Reviewed in the United States on March 25, 2025 by The Lions Den
Color: White
Style: 4 Gallon with T&P Valve
The male pipe connection threads on the water inlet and outlet are not cut properly so you have to over tighten them to keep from leaking. The unit stopped working after 38 days of use. It did not lose water and it had power. There is no contact information for the manufacturer. IT was difficult to relay to Amazon that it should be a warranty issue as it was beyond the 30 days return period. Finally Amazon authorized the return. Unfortunately because of my limited space this was the only unit that would fit so I had to reorder the same water heater. I hope this unit will work for a longer period. If I had a choice I would not buy this water heater. DO NOT PURCHASE IF YOU HAVE SPACE FOR A DIFFERENT UNIT.
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Reviewed in the United States on August 14, 2025 by Virgina B.
Color: White
Style: 4 Gallon with T&P Valve
Replaced my existing 2.5 gallon electric heater so already had the correct 1/2 to 1/2 inch water hoses installed. Like other reviews mentioned there is a slight leaking issuse with the pressure valve, the threads seems to be slightly off not allowing a tight connection. I did double up on the pipe tape and it still leaks. However to be fair there is a thick rubber black gasket that would fit tightly into the pressure valve hole. The instructions lack any information so I am going to add it and try again. Update: I installed the thick rubber black o-ring gasket into the pressure valve hoke, pressed down on all sides to make sure it was seated, double wrapped the pressure value threads with plumbing tape and installed. This stopped that leak. As for the water input and output lines, DO NOT USE ANY ADAPTERS ( double or triple the plumbing tape on the treads and connect the hoses directly. As of now there is no leaking. But will check again for the next few days to insure its ok. Other then that the water heats up quickly and unit operates fine. As for the 1 post of that a wire fried and front controls fell off, this heater should not be installed outside on a porch without being inclosed because most of these heaters are not weather resistant which appears to have caused that person's malfunction.
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Reviewed in the United States on September 7, 2025 by wayne paiva wayne paiva