---
product_id: 597442685
title: "4 Gallon Mini Tank Water Heater Under Sink Instant Hot Water,1500w 110V 120V Small Hot Water Heater,Pressure Release Valve RV Kitchen,Shelf,Wall Floor Mounted White"
brand: "fisoceny"
price: "€ 95.08"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.gr/products/597442685-4-gallon-mini-tank-water-heater-under-sink-instant-hot
store_origin: GR
region: Greece
---

# 1500W fast heating Compact 14.2"L x 12.2"H x 13.8"W Pressure & overheat protection 4 Gallon Mini Tank Water Heater Under Sink Instant Hot Water,1500w 110V 120V Small Hot Water Heater,Pressure Release Valve RV Kitchen,Shelf,Wall Floor Mounted White

**Brand:** fisoceny
**Price:** € 95.08
**Availability:** ✅ In Stock

## Summary

> 🔥 Instant Hot Water, Instant Upgrade! ⚡

## Quick Answers

- **What is this?** 4 Gallon Mini Tank Water Heater Under Sink Instant Hot Water,1500w 110V 120V Small Hot Water Heater,Pressure Release Valve RV Kitchen,Shelf,Wall Floor Mounted White by fisoceny
- **How much does it cost?** € 95.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/597442685-4-gallon-mini-tank-water-heater-under-sink-instant-hot)

## Best For

- fisoceny enthusiasts

## Why This Product

- Trusted fisoceny brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Savvy Compact Design:** Sleek 4-gallon tank fits under sinks, on shelves, or walls—ideal for modern minimalists and small spaces.
- • **Energy Smart & Cost Efficient:** 90% thermal efficiency means lower energy bills without sacrificing performance—eco-friendly meets wallet-friendly.
- • **Instant Hot Water, No More Waiting:** Get steaming hot water in just 5-10 minutes—perfect for busy kitchens and on-demand lifestyles.
- • **Built to Last with Premium Materials:** Stainless steel tank, corrosion-resistant layers, and magnesium rods ensure durability and purified water quality year-round.
- • **Safety First with Advanced Protections:** Equipped with pressure relief valve, leakproof design, and overheat prevention for peace of mind in every use.

## Overview

The Fisoceny 4 Gallon Mini Tank Water Heater delivers rapid, energy-efficient hot water with a compact design perfect for under-sink or wall mounting. Featuring a durable stainless steel tank, advanced safety protections, and adjustable temperature controls, it’s engineered for reliable year-round use in kitchens, offices, RVs, and more.

## Description

Full description not available

## Features

- Easy to install and Widely Use:Fisoceny 4 gallon water heater is suitable for 1/2" NPT water hose connection, plug-in connection with 3-feet power cord for 110v/120v power supply included,and can be installed easily.4 gallons small tank water heaters with 14.2"L x 12.2"H x 13.8"W compact design,saves more space and can be under sink,shelves, wall, or floor-mounted (bracket included).Can be widely used in kitchen, office,RV, and hair salon,etc.
- No More Wait for Hot Water:Fisoceny 110v 4 gallon water heater with fast recovery rate can eliminates long waits for hot waters.durable stainless steel tank and excellent insulation lining materials greatly reduce heat loss and provide constant temperature hot water in 5-10 minutes.
- Durable and Long Service:The internal materials of instant hot water heater electric 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 and extend service life.Integrated stainless steel tank body and Polyurethane CFC-free filling layer ensure the stability of the tank body and excellent insulation.Good quality and applicability ensure that your 4 gallon waterer heater can be used normally all year round
- Energy Efficient and Easy to Use:FISOCENY mini tank electric water heater have excellent energy efficiency level. our water heaters with thermal efficiency up to 90%,higher energy efficiency ,Providing immediate hot water at the point of use whenever you need it.instant hot water is always on demand.saving energy and your bills.mechanical knob switch design supports temperature adjustment from 86℉ to 149℉.which is simple and practical.
- Excellent Security:FISOCENY under sink 4 gallon water heaters has many safety designs hard stainless steel tank,leakproof design,insulation material,preventing overheat,pressure relief valve,longer service life,all for your safety.Of course, to prevent water leakage, we strongly recommend that customers tighten the nuts connecting the water pipe and inlet/outlet to the maximum extent possible
- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Fisoceny |
| Product Dimensions | 12.2"W x 13.8"H |
| Special Feature | Adjustable temperature, Easy to Install, High Water Pressure Protection, Overheat Protection, Pressure Release Valve |
| Color | White |
| Wattage | 1500 watts |
| Voltage | 110 Volts |
| Maximum Flow Rate | 0.45 Gallons Per Minute |
| Maximum Temperature | 149 Degrees Fahrenheit |
| Heat Output | 1.5E+3 Watts |
| Efficiency | High |
| Maximum Operating Pressure | 108 Pound per Square Inch |
| Mounting Type | Wall Mounted/floor Mounted |
| Is Electric | Yes |
| Manufacturer | Fisoceny |
| Item Depth | 13.8 inches |
| Item Weight | 13.17 pounds |
| Item model number | 4 gallon under sink instant water heater |
| Shape | Square |
| Special Features | Adjustable temperature, Easy to Install, High Water Pressure Protection, Overheat Protection, Pressure Release Valve |
| Included Components | Female Water Pipe to Female Water Pipe x 2, Installation Bracket x 1, Screws x 2, Under Sink 4 Gallon Water Heater x 1, ‎Pressure Release Valve x 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Fisoceny
- **Capacity:** 4 Gallons
- **Power Source:** AC
- **Product Dimensions:** 12.2"W x 13.8"H
- **Special Feature:** Adjustable temperature, Easy to Install, High Water Pressure Protection, Overheat Protection, Pressure Release Valve

## Images

![4 Gallon Mini Tank Water Heater Under Sink Instant Hot Water,1500w 110V 120V Small Hot Water Heater,Pressure Release Valve RV Kitchen,Shelf,Wall Floor Mounted White - Image 1](https://m.media-amazon.com/images/I/51jIYZS5FnL.jpg)
![4 Gallon Mini Tank Water Heater Under Sink Instant Hot Water,1500w 110V 120V Small Hot Water Heater,Pressure Release Valve RV Kitchen,Shelf,Wall Floor Mounted White - Image 2](https://m.media-amazon.com/images/I/71-QGqplnML.jpg)
![4 Gallon Mini Tank Water Heater Under Sink Instant Hot Water,1500w 110V 120V Small Hot Water Heater,Pressure Release Valve RV Kitchen,Shelf,Wall Floor Mounted White - Image 3](https://m.media-amazon.com/images/I/71wseoyyViL.jpg)
![4 Gallon Mini Tank Water Heater Under Sink Instant Hot Water,1500w 110V 120V Small Hot Water Heater,Pressure Release Valve RV Kitchen,Shelf,Wall Floor Mounted White - Image 4](https://m.media-amazon.com/images/I/71an+ZXPFOL.jpg)
![4 Gallon Mini Tank Water Heater Under Sink Instant Hot Water,1500w 110V 120V Small Hot Water Heater,Pressure Release Valve RV Kitchen,Shelf,Wall Floor Mounted White - Image 5](https://m.media-amazon.com/images/I/71hmgYZeu9L.jpg)

## Questions & Answers

**Q: Can this mini tank water heater be used for shower?**
A: The electric mini water heater is not intended to service a shower because a larger flow from 1.5gpm to 2.4gpm is required, while the capacity of this small tank is 4 gallon.

**Q: What is the size of the water inlet of this 4 gallon mini tank water heater?**
A: The inlet and outlet of this water heater are 1/2 NPT.Considering the differences in the diameter of water pipes in different regions and occasions,we have included 2pcs famale to female converter pipes in the packaging.

**Q: Is it possible to achieve continuous flow of hot water?**
A: Due to the limited capacity of the tank, it is impossible for small water heaters to achieve uninterrupted hot water supply. It takes about 6 minutes for cold water heating.Therefore, it is recommended that you do not use the hot water all at once.

**Q: Why does the hot water in 110v water heater flow out slowly?**
A: Water pressure is the most important influencing factor, and it is recommended that the water pressure be between 0.5-0.6 Mpa. If it falls below this range, it may cause slow or even impossible flow of hot water.

**Q: What do I need to pay attention to when the small tank water heater is used for the first time and not in use?**
A: The 4 gallon small water heater electric must be fully filled before connecting with the power for the first time.In winter,if the electric water heater will not be used for long time,water in the water tank must be drained entirely.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The right capacity and right size
*by D***K on May 19, 2024*

Placed this water heater under the sink of my shop. Easy to install. I ended up buying two water lines of the same length since I needed female ends of one of the lines.The heater has provided me all the hot water I have needed. I turned the water temp down 1/4 of a turn from high since I didn't need the water that hot. Great product, works great.I have to turn the water off to my shop in the winter so I have yet to see if I can blow all of the water out of the tank or if I have to remove the tank to drain it for the winter.

### ⭐⭐⭐⭐⭐ It's a 5 star from hubby!
*by R***R on January 14, 2025*

Ok, the size was different than our instant water heater we are replacing in the camper. But that's expected since this is an actual water tank. It's going to get even more use this coming weekend as we will be in the caper all weekend, so I can update even more.It is easily installed (hubby liked that part), seems quality and durable (we will know more as time goes by). We are pleased so far with this purchase!!!I would recommend this for a camper or under a kitchen sink for faster hot water!

### ⭐ STAY AWAY FROM THIS PRODUCT !!
*by R***S on August 2, 2024*

I Need to do an update on my review. While I had initially thought that this was a good product, I have been proven wrong!! I have purchased 2 of these units now, and both of them have problems with their heating elements after about 6-9 months. The first one just stopped working. I search for 2 days, trying to find a replacement heating element, and there is none to be found. It is some kind of 100V bastard unit with an empty tube for the thermometer. Then just the other day, my second unit was leaking, and one night, I found water all over my kitchen floor!! When I took is apart, I found, that it was leaking, from the heating element tube that houses the thermometer. I am therefore warning everyone now, to stay away from this product. Also, I think that they may be trying to change their name from FISCONY to KENUOS to avoid the negative feedback. If you look at both units, they look "exactly" the same, but with just different names.

## Frequently Bought Together

- Fisoceny 4 Gallon Mini Tank Water Heater Under Sink Instant Hot Water,1500w 110V 120V Small Hot Water Heater,Pressure Release Valve RV Kitchen,Shelf,Wall Floor Mounted White
- Installation kit for Wall Mount Commercial Faucet,backsplash Mount Set for Stainless Steel Commercial Kitchen Prep & Utility Sink

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-02*