Search  for anything...

Under Sink Instant Hot Water Heater 2.5 Gallon Mini Tank Water Heater 110V 120V Small Hot Water Heater,1500W Rv Compact Mini Water Heater Kitchen Mini Water Heater 1/2" NPT White

  • Based on 172 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$98.99 Why this price?
Save $6.00 was $104.99

Buy Now, Pay Later


As low as $16.50 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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

Returnable until Jan 31, 2025

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: Unavailable
Fulfilled by Amazon
Available payment plans shown during checkout

Color: White


Features

  • Easy to install and widely use:fisoceny 110v mni water heater is suitable for 1/2" npt water hose connection,plug-in connection with ul certificated power cord for 110v/120v ac power supply included,and can be installed easily.2.5 Gallon under sink intant water heater with 11.4"L x 11.4"H x 11"w compact design,saving more space and can be under sink,counter,cabinet,shelves,wall,or floor-mounted (bracket included).Can be widely used in kitchen,offices,rs,and hair salons,etc
  • No more wait for hot water:Fisoceny 110v instant water heater with a heating efficiency of up to 90%,you can get hot water within 6 minutes.even in the cold winter, there is no need to wait for a long time
  • Durable and long service:the internal materials of instant hot water heater 110v are made of high-temperature calcined layer and enamel layer, which have corrosion resistance,rust prevention,and anti-corrosion properties.Stainless steel heating tubes and built-in magnesium rods can effectively purify water quality.Integrated stainless steel tank body,all for your safety and extended service life
  • Energy efficient and perfect insulation:fisoceny under sink instant water heater have excellent energy efficiency level.Our small water heater with fast heating rate,higher energy efficiency,providing on demand hot water.Instant hot water is always at point of use.We have upgraded polyurethane cfc-free filling layer extend the insulation time to 48 hours
  • User friendly 2.5 Gallon water heater:our mini tank water heater supports mechanical knob to adjust temperature, with a range from 86 to 149 F,it is easy to operate.We have equipped you with 2pcs connecting water hoses, 1pc pressure relief valve, and a transparent water guide pipe. You don't need to purchase any other accessories to easily install and use it
  • Note:according to customer question based on images,it may cause water leakage if the pressure relief valve is installed on the red water outlet or not tightened,it is recommended that you install the pressure relief valve above the blue inlet and tighten it.please inform us promptly if you have any questions or malfunctions,and we will provide you with thoughtful after-sales solutions

Brand: Fisoceny


Product Dimensions: 10.4"W x 11.4"H


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


Color: White


Wattage: 1500 watts


Brand: ‎Fisoceny


Product Dimensions: ‎10.4"W x 11.4"H


Special Feature: ‎Portable, Easy to Install, Overheat Protection, Pressure Release Valve, High Water Pressure Protection


Color: ‎White


Wattage: ‎1500 watts


Voltage: ‎110 Volts (AC)


Maximum Temperature: ‎149 Degrees Fahrenheit


Heat Output: ‎1500 Watts


Efficiency: ‎[HIGH]


Maximum Operating Pressure: ‎108 Pound per Square Inch


Maximum Pressure: ‎108 Pound per Square Inch


Mounting Type: ‎Wall or floor mounted or under sink


Is Electric: ‎Yes


Manufacturer: ‎Fisoceny


Item Depth: ‎10.5inch


Item Weight: ‎8.82 pounds


Country of Origin: ‎China


Item model number: ‎White Instant water heater


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


Included Components: ‎Pressure Release Valve x 1, Under Sink Instant Water Heater x 1, Installation Bracket x 1, Screws x 2, Female Water Pipe to Female Water Pipe x 2


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: December 8, 2023


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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


  • Great little water heater!
Color: Black
I have installed two of these and we love the immediate hot water. Easy to install and adjust the heat. I also highly recommend reading the included instruction manual...not because you will need it to install this excellent water heater, but because it is hilarious. I read it to friends at dinner parties for laughs, but it is hard to keep a straight face! Buy the heater and after it is installed, read the manual. ... show more
Reviewed in the United States on December 18, 2024 by Scott McAda

  • Tankless hot water heater
Color: White
easy to use and works great!
Reviewed in the United States on December 17, 2024 by Mary H. Bonnette

  • This is great
Color: Black
Works like a dream just enough water to do the dishes
Reviewed in the United States on September 21, 2024 by Janet

  • Luke warm water for half an hour
Color: White&Black
I ordered this thing in the fall because I would need it in the winter for a small greenhouse. It worked for about 15 minutes if you consider Luke warm water working. Unfortunately the seller has a one month return policy so even though it hadn’t been out the box I couldn’t return it.
Reviewed in the United States on December 11, 2024 by A. Farmer

  • Solved our hot water problem and it worked great
Color: Black
We had a problem in our new home, where the tankless water heater was quite a ways from the kitchen. It took 90 seconds or more to get hot water, which seems like a lifetime. We decided to get a hot water heater that we could put under the sink. Some models require 220 V which we didn’t want. This model only requires a normal 110. The purpose of this hot water heater will be to get instant hot water. We can then wash hands or rinse dishes, which only uses a small amount of hot water. If we are filling the entire sink, then the hot water in this tank would be exhausted and the water coming from our whole house tankless water heater will fill the rest of the sink. After installation, we are super happy. And we don’t see any decrease in water, pressure or water flow. The water is hot in about four seconds. This is a perfect solution to a problem that we had. A few comments on installation so you know you can do it. They do not include any white Teflon tape for sealing the joints. You need to purchase this from Amazon or your local hardware store. Instructions they provide are not really good. But there’s not that much to actually do so it’s OK. If you don’t know how to wrap Teflon tape, then I suggest going to YouTube and finding out how to do it. The installation is simple wrap tape on the top of the two water ports. install the safety valve on the cold water inlet pipe on the top of the tank. Put white tape on the top threads. Next under sink turn the hot water off and disconnect the faucet pipe that is going to the shut off valve. Connect the new pipe they gave you to the shut off valve and then to the cold port on the tank. Now comes the tricky part. The line coming from my faucet that should connect to the tank did not have the same size end and therefore I needed to go to the hardware store to pick up a connector. The guy there helped me get the right one. I applied white tape to the connector and then connected everything. At this point, I tested and found a leak. I need to apply more white tape in order to get the leak to stop. In summary, great product, solved my problem, and I’m happy ... show more
Reviewed in the United States on August 13, 2024 by Ross Ross

  • Currently installing
Color: White&Black
The pressure relief valve that is provided is a few millimeters off from the threading on the connection on the hot water tank. Have not fully installed yet, however I am applying teflon tape as well as t+2 rector seal pipe thread sealant on top of the Teflon tape I’m using. Did not use the Teflon tape included with the package. Will update on results ... show more
Reviewed in the United States on November 23, 2024 by Canyon Amarys

  • Instent hot water :)
Color: Black
I have a 50 gallon electrical hot water heater about 10 ft away from kitchen sink. However we always have to wait for about one or two minutes before any warm water comes out. Big waste for water and electricity. This little water heat is a good solution- hot water comes out right away. It was easy to hook up (I did it myself) and it's quiet also. I also like the small size. It should fit in most of 33 or 36 inch sink cabinets. ... show more
Reviewed in the United States on November 10, 2024 by Baoshan Han Baoshan Han

  • Easy install.
Color: White
I purchased this heater to put under the kitchen sink in my house because it was taking far too long for the hot water to make it all the way across the house. I ran the house hot water line into the cold water in line “blue” this gives me 2.5 gallons of instantly hot water immediately then if that gets used up the hot water from the main water heater should take over. Installation was easy. I did need a small adapter to reduce the tank outlet to the proper size because the flex hose was not removable from my faucet so I could not use one of the hoses that was supplied with the heater. You can see the adapter I used in the second photo coming out of the hot water side “red” I did notice a few drops of water from the pressure relief valve but the instructions said this is to be expected at first so hopefully it stops. I ran the clear tubing from the pressure relief valve into the drain above the P-trap by drilling a hole just large enough to fit the tube in and sealed around it with silicone. I set the heat at half way. Any higher and it is too hot for my liking. ... show more
Reviewed in the United States on November 1, 2024 by Gregory Hoover Gregory Hoover

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...