Best Storage Tank Water Heaters of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 3, 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Storage tank water heaters are a popular and reliable option for providing hot water in residential and commercial buildings. These tanks come in a variety of sizes and can hold anywhere from 20 to 80 gallons of water. They work by heating the water in the tank and then distributing it throughout the building as needed. While they may take up more space than other types of water heaters, they are often more affordable and easier to install. With proper maintenance and care, storage tank water heaters can provide years of reliable hot water for any building.

At a Glance: Our Top Picks

VEVOR 2.5-Gallon Electric Water Heater Cover #TOP 1
VEVOR 2.5-Gallon Electric Water Heater
ftb score rating icon 9.8
BISELONG 2.5 Gallon Electric Water Heater Cover #TOP 2
BISELONG 2.5 Gallon Electric Water Heater
ftb score rating icon 9.7
OOOJS 8-Gallon Instant Electric Water Heater Cover #TOP 3
OOOJS 8-Gallon Instant Electric Water Heater
ftb score rating icon 9.5

Top 10 Storage Tank Water Heaters

VEVOR 2.5-Gallon Electric Water Heater

D10-14VA(M,S)
White
VEVOR 2.5-Gallon Electric Water Heater Cover
VEVOR Electric Mini-Tank Water Heater 2.5-Gallon Tank, 1440W Hot Water Boiler Storage, Safety Temperature Pressure Valve Easy Install, for Kichen Bathroom Restaurant, Shelf Wall Floor Mounted

The VEVOR Electric Water Heater offers a reliable hot water solution with its powerful 1440W stainless steel design, providing hot water quickly in just 8 to 15 minutes. With a 2.5-gallon capacity, you can enjoy ample hot water for cooking, dishwashing, or laundry, eliminating frustrating wait times. Its built-in temperature pressure safety valve enhances safety, protecting you from scalding and leaks. Additionally, the compact design allows for flexible installation options, making it easy to place in any kitchen or bathroom without taking up too much space.

What We Like
Fast heating time
Ample hot water supply
Enhanced safety features
Flexible installation options

BISELONG 2.5 Gallon Electric Water Heater

BI-2.5
White
BISELONG 2.5 Gallon Electric Water Heater Cover
110V-120V 1440-1500W Small Under Sink Tank 2.5 Gallon Water Heater Hot Storage,Mini Instant Electric RV TR Trailer Kitchen Compact,Food Truck 2 PCs 16” Long 1/2”FIP Stainless Steel Hose (BI-2.5)

The BISELONG 2.5 Gallon Electric Water Heater is an ideal solution for providing hot water right where you need it. Made of stainless steel, this mini hot water heater is safe, durable, and corrosion-resistant. It features a smart inverter for energy-saving, automatic heat preservation and storage of hot water, and easy-to-use knob temperature adjustment design. With a fast recovery rate, it eliminates long waits for hot water at your sink. The compact design allows you to shelf, wall or floor mount it, making it perfect for kitchen, bar, school, hospital, community and RV.

What We Like
Easy to install
Temperature control
Compact size
Immediate hot water
Longer availability of hot water

OOOJS 8-Gallon Instant Electric Water Heater

OOOJS
JS-08
8.0Gallon
OOOJS 8-Gallon Instant Electric Water Heater Cover
110V-120V 1440-1500W Instant Electric Hot Water Heater Under Kitchen Small Tank 8.0 Gallon Storage,Rv Trailer Instant Fiberglass Compact Point-of-Use,2 PCs 16” Long 1/2”FIP Stainless Steel Hose 30L

The OOOJS Instant Water Heater is designed for convenient hot water access in areas lacking immediate hot water sources. It includes essential accessories like durable water pipes and a safety valve, ensuring a reliable installation. You can enjoy peace of mind with its robust stainless steel construction and multiple safety features, protecting you from potential hazards. This model also boasts intelligent energy-saving technology, heating water to your desired temperature quickly and efficiently, making it perfect for kitchens, RVs, and more.

What We Like
Quick hot water access
Robust safety features
Energy-efficient operation
Easy installation
#TOP 4

Antuony Mini Tank Water Heater

Antuony
XYTTK122
White
Antuony Mini Tank Water Heater Cover
Antuony Electric Mini Tank Water Heater - Efficient 2.6 Gallon Electric Storage Water Heater, 120V 1500W,Under Sink Instant Hot Water for Kitchen and Bathroom (2.6 Gallon)

The Antuony Mini Water Heater offers instant hot water right at your sink, so you no longer have to wait for it to heat up. This compact unit fits easily under your sink, making it ideal for kitchens, bathrooms, or even RVs. With its energy-efficient design, you can heat only the water you need, helping to lower your utility bills. Plus, its durable construction ensures a long lifespan, while the adjustable thermostat lets you set the perfect water temperature for your comfort.

What We Like
Instant hot water
Space-saving design
Energy efficient
Durable materials
Adjustable temperature control
#TOP 5

Antuony 4 Gallon Electric Water Heater

Antuony
GDHJB-01-10L
White
Antuony 4 Gallon Electric Water Heater Cover
4 Gallon Electric Mini Tank Water Heater - Instant Hot Water Heater 120V 1500W,Compact Electric Storage Water Heater,Under Sink Instant Hot Water for Home (4.0 Gallon)

The Antuony Mini Water Heater provides instant hot water right at your sink, eliminating the wait for hot water. It can reach temperatures up to 200 degrees Fahrenheit, ensuring you have the heat you need when you need it. Its compact design fits easily under sinks, making it ideal for small spaces like kitchens and bathrooms. Additionally, this energy-efficient heater operates on standard 120V power, helping to reduce your utility bills by only heating the water you use. With durable materials and advanced technology, it promises a long-lasting performance.

What We Like
Instant hot water
Compact and space-saving
Energy-efficient operation
Durable construction

GEESEN Electric Hot Water Heater

GEESEN
White-3.5gallon
GEESEN Electric Hot Water Heater Cover
Electric Hot Water Heater 120/240V Small Compact Tank Storage,Rv Tr 3 Gallon Trailer 1.5KW Kitchen Instant Under Sink Counter Cupboard, RV 1 PCs 16” Long 1/2”FIP Stainless Steel Water Hose 11L

The GEESEN Electric Hot Water Heater is a compact and efficient solution for your heating needs. With its 1500W power, it quickly heats up the water, eliminating the long wait. The small size of this water heater allows for easy installation under the sink, saving you valuable space. Its large capacity of 10L/2.6gal makes it ideal for washing multiple sets of utensils at once. The heating pipe is strategically placed close to the outlet, reducing heat loss. You can also adjust the temperature according to your preference, with a maximum limit of 72 degrees. Additionally, the 20mm/0.8inch insulation layer ensures long insulation time, keeping the water warm even when not in use. The GEESEN Electric Hot Water Heater is a reliable and convenient choice for your daily heating needs.

What We Like
Quick heating
Space-saving
Large capacity
#TOP 7

Nessxa 1.6 Gallon Electric Mini Tank Water Heater

Nessxa
YYJ24039-1
White
Nessxa 1.6 Gallon Electric Mini Tank Water Heater Cover
1.6 Gallon Electric Mini Tank Water Heater, 110V 1500W Instant Hot Water Heater, Compact Electric Storage Water Heater, Point of Use On Demand Under Sink Water Heater for Home Kichen Bathroom

The Nessxa Mini Tank Water Heater offers instant hot water directly at your sink, eliminating the wait time and reducing water waste. With a 1.6-gallon capacity, this compact unit ensures a steady supply of hot water whenever you need it. You can easily adjust the temperature between 77°F and 176°F, allowing you to customize your comfort while maximizing energy efficiency. Its user-friendly design can be mounted under sinks, and it is made from safe materials, ensuring a reliable and quick heating experience without the risk of electrical hazards.

What We Like
Instant hot water delivery
Energy-efficient temperature control
Compact and versatile installation
Safe materials used
#TOP 8

AMZCHEF 2.12 Gallon Mini Tank Water Heater

UL-RZB7-GR
White
AMZCHEF 2.12 Gallon Mini Tank Water Heater Cover
AMZCHEF Electric Mini-Tank Water Heater 2.12 Gallon/7L,Knob Temperature Adjustment Hot Water Storage,Under Sink,120V/1500W Fast Heating,White,Wall or Floor Mounted,Easy to Install

The AMZCHEF Mini Tank Heater is designed to provide quick access to hot water right where you need it. With a powerful 1500W heating capability, it can warm water in just 6 to 13 minutes, eliminating the wait. Safety is paramount, featuring multiple protections like anti-dry burn and overpressure safeguards, ensuring peace of mind during use. The intuitive knob allows you to easily adjust the temperature to your preferred level, making it convenient for various tasks. Its compact design saves space and can be installed under sinks or mounted on walls, ideal for homes, offices, or even RVs.

What We Like
Fast heating time
Space-saving design
Multiple safety features
Easy temperature control
#TOP 9

FIPEUN Electric Tank Hot Water Heater

FIPEUN
FI-01
White-2.5Gallons
FIPEUN Electric Tank Hot Water Heater Cover
110V/115v/120V 1400-1500W Small Under Sink Tank 2.5 Gallon Water Heater Hot Storage,Mini Instant Electric RV TR Trailer Kitchen Compact Point-of-Use,2 PCs 16” Long 1/2”FIP Stainless Steel Hoses 9.5L…

FIPEUN Hot Water Heater is a compact and durable tank water heater that can fit under your sink and supply hot water right where you need it. Made of anti-rust stainless steel, it includes 2 stainless steel water hoses, a vent valve, and a safety valve. The built-in smart chip heats up to the temperature you set and automatically insulates when heated to the specified temperature, achieving a thermal efficiency of 98%. With an easy-to-operate knob temperature adjustment design, you can control the warmth easily. It eliminates long waits for hot water and can supply up to 2 sinks at a time, taking only 8-15 minutes to heat up to your desired temperature. It can be shelf, wall, or floor mounted and comes with all the necessary accessories for quick installation without additional expenses or preparing time.

What We Like
Compact and small design
Easy to install and use
Provides hot water instantly
Two stainless steel water hoses included
Can be used in various scenarios
#TOP 10

VEVOR 8-Gallon Electric Mini-Tank Water Heater

D30-14VA(M,S)
White
8gal Upgraded Panel
VEVOR 8-Gallon Electric Mini-Tank Water Heater Cover
VEVOR Electric Mini-Tank Water Heater 8-Gallon Tank, 1440W Hot Water Boiler Storage, Safety Temperature Pressure Valve Easy Install, for Kichen Bathroom Restaurant, Shelf Wall Floor Mounted

The VEVOR Mini-Tank Water Heater is a powerful solution for your hot water needs. With its stainless steel construction and 1440W power, it heats water quickly, delivering hot water in just 8 to 15 minutes. The built-in temperature pressure safety valve enhances your safety during use, protecting you from potential hazards like scalding. Its 8-gallon capacity ensures you have enough hot water for cooking, dishwashing, or laundry. Plus, the compact design allows for easy installation in various locations, making it a practical choice for any home.

What We Like
Rapid heating capability
Safety features included
Ample hot water supply
Compact and versatile installation
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a storage tank water heater?

Tanks store up to 30-50 gallons of water, which is heated to a previously set temperature, then stored until you need to use it. Water in the tank is normally heated using natural gas or electricity.

2. How does a storage tank water heater work?

It operates by releasing hot water from the top of the tank when you turn on the hot water tap. To replace that hot water, cold water enters the bottom of the tank through the dip tube where it is heated, ensuring that the tank is always full. ... Gas and oil water heaters also have venting-related energy losses.

3. What is the most efficient storage water heater?

The most efficient conventional gas-fired storage water heaters are ENERGY STAR models with energy factors between 0.67 and 0.70, corresponding to estimated gas use of 214 to 230 therms/year.

4. What is the purpose of a hot water storage tank?

A hot water storage tank (also called a hot water tank, thermal storage tank, hot water thermal storage unit, heat storage tank and hot water cylinder) is a water tank used for storing hot water for space heating or domestic use.

Editor's Notes

During our storage tank water heater research, we found 24 storage tank water heater products and shortlisted 10 quality products. We collected and analyzed 7,381 customer reviews through our big data system to write the storage tank water heaters list. We found that most customers choose storage tank water heaters with an average price of $122.02.

The storage tank water heaters are available for purchase. We have researched hundreds of brands and picked the top brands of storage tank water heaters, including VEVOR, BISELONG, OOOJS, Antuony, GEESEN. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.