10 Best water heaters of 2025

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1

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Rheem
Rheem 18kW 240V Tankless Electric Water Heater, Gray
Main highlights

Efficient Water Heating
The Rheem 18kW Tankless Electric Water Heater offers on-demand hot water with advanced self-modulation for energy savings and efficiency.

Ideal for Small Homes
Best suited for small homes or apartments needing instant hot water without the bulk of traditional tanks.

Space-Saving Design
Customers praise its compact size, freeing up space while delivering reliable hot water.
9.8

Exceptional

Our Rating

8.2
Easy installation

8.2
Temperature control

8.2
Efficient Energy Use
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Value for Money

2

WINTEMP

WINTEMP Powered Portable Water Heater, On-Demand Propane Camping Shower, Battery-Powered Camping Water Heater & Shower Pump Constant Temperature, Rechargeable Battery
9.7

Exceptional

Our Rating
3

EcoSmart
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

36% Off
Main highlights

Endless Hot Water Efficiency
Provides consistent hot water with energy-efficient self-modulating technology, maintaining temperature within 1 degree.

Compact Space Saver
Ideal for small spaces, can be wall-mounted and fits point-of-use applications.

Energy Savings Praised
Customers appreciate reduced utility bills and efficient performance in small households.
Key specs
- wattage:13-kilowatt
- special features:Energy Efficient
- voltage:N/A
- maximum flow rate:1.3 to 3.1 GPM
- maximum temperature:N/A
9.6

Exceptional

Our Rating

9.1
Efficient Energy Use

8.7
Easy installation

8.4
Temperature control
4

COSORI
Cosori Electric Kettle, No Plastic Filter & Spout, 1.8Qt Tea Kettle & Hot Water Boiler For Coffee & Tea, Water Heater & Teapot, Automatic Shut Off, Borosilicate glass, Black, 1500W
Main highlights

Efficient Boiling and Safety
The COSORI Electric Kettle offers rapid boiling, automatic shut-off, and boil-dry protection, ensuring efficiency and safety in every use.

Ideal for Quick Brews
Perfect for making tea, coffee, and quick meals, this kettle suits any busy kitchen.

Praised for Modern Design
Customers love the stylish design with blue LED lights, enhancing kitchen aesthetics.
9.5

Excellent

Our Rating

9.9
Flavor

9.7
Simple to use

9.5
Thermal power
5

Bebaigowna

Bebaigowna Portable Water Heaters, 1500W Immersion Water Heater Electric with Digital LCD Thermometer, Bucket Heater with 304 SS Guard Fast Heating in Minutes Suitable for Bucket Bathtubs and Basin
9.4

Excellent

Our Rating
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6

BOSCH
BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted

12% Off
Main highlights

Convenient Point-of-Use
2.5-gallon mini-tank fits under sinks for instant hot water.

Versatile Installation Options
Ideal for small homes, garages, offices, and in-law suites.

Highly Efficient Performance
Customers praise thermal efficiency and fast recovery rate.
Key specs
- wattage:1440 watts
- special features:Lightweight
- voltage:120 Volts
- maximum flow rate:N/A
- maximum temperature:N/A
9.3

Excellent

Our Rating

9.1
Easy installation

8.9
Temperature control

8.7
worth the money
7

D LIAN DONG

Tankless Water Heater Electric, 110V Hot Instant Water Heater Use On Demand Under Sink, Mini Tank Water with LED Digital Display for Home Kichen Bathroom(Water Tank Only)
9.1

Excellent

Our Rating
8

Lakkzoom

2000W Immersion Water Heater,Portable Hot Water Heater with Digital LCD Thermomete for Mini Pool Bathtub,Bucket Heater Camp Heater with Thermometer Heat 5 Gallons of Water in Minutes,UL Listed
9.0

Excellent

Our Rating
9

Lakkzoom
Lakkzoom Immersion Water Heater with 304 Stainless Steel Cover Intelligent Temperature Control and Digital LCD Thermometer Electric Portable Bucket Heater Heat 5 Gallons of Water in Minutes 1500W
Main highlights

Safe Design and Durability
UL certified, rust-proof stainless-steel cover, intelligent temperature control, and automatic power cut-off ensure safe, long-term use.

Ideal for Small Containers
Perfect for portable bathtubs, mini pools, sinks, buckets, and washbasins. Great for travels and road trips.

Quick Heating Efficiency
Heats 5 gallons of water quickly, maintaining temperature efficiently. Users appreciate its speed and reliable automatic shut-off feature.
Key specs
- wattage:1500W
- special features:UL certified, portable
- voltage:110V AC
- maximum flow rate:N/A
- maximum temperature:75°C (165°F)
8.7

Very Good

Our Rating

9.3
Simple to use

8.2
Temperature control

8.0
lasts a long time
10

Chefman
Chefman Electric Kettle, 1.8L 1500W, Hot Water Boiler, Removable Lid for Easy Cleaning, Auto Shut Off, Boil-Dry Protection, Stainless Steel Filter, BPA Free, Borosilicate Glass Electric Tea Kettle
Main highlights

Rapid Boiling Efficiency
Experience fast boiling with 1500W power, heating water in 3 minutes.

Perfect for Busy Lifestyles
Ideal for quick tea, coffee, and hot beverages on the go.

Automatic Shutoff Convenience
Praised for safety features like automatic shutoff and boil-dry protection.
Key specs
- Auto Shut-Off:Yes
- Heating Time:3 minutes
- Wattage:1500W
- Material:Borosilicate glass
- Finish:Brushed
8.5

Good

Our Rating

9.9
Flavor

9.7
Simple to use

9.7
Temperature control

10 Best water heaters of 2025

1

Rheem 18kW 240V Tankless Electric Water Heater, Gray

8.2

8.2

8.2

How do we rank?

How do we rank?

Analyzing top stores

2

WINTEMP Powered Portable Water Heater, On-Demand Propane Camping Shower, Battery-Powered Camping Water Heater & Shower Pump Constant Temperature, Rechargeable Battery

3

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

9.1

8.7

8.4

4

Cosori Electric Kettle, No Plastic Filter & Spout, 1.8Qt Tea Kettle & Hot Water Boiler For Coffee & Tea, Water Heater & Teapot, Automatic Shut Off, Borosilicate glass, Black, 1500W

9.9

9.7

9.5

5

Bebaigowna Portable Water Heaters, 1500W Immersion Water Heater Electric with Digital LCD Thermometer, Bucket Heater with 304 SS Guard Fast Heating in Minutes Suitable for Bucket Bathtubs and Basin

6

BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted

9.1

8.9

8.7

7

Tankless Water Heater Electric, 110V Hot Instant Water Heater Use On Demand Under Sink, Mini Tank Water with LED Digital Display for Home Kichen Bathroom(Water Tank Only)

8

2000W Immersion Water Heater,Portable Hot Water Heater with Digital LCD Thermomete for Mini Pool Bathtub,Bucket Heater Camp Heater with Thermometer Heat 5 Gallons of Water in Minutes,UL Listed

9

Lakkzoom Immersion Water Heater with 304 Stainless Steel Cover Intelligent Temperature Control and Digital LCD Thermometer Electric Portable Bucket Heater Heat 5 Gallons of Water in Minutes 1500W

9.3

8.2

8.0

10

Chefman Electric Kettle, 1.8L 1500W, Hot Water Boiler, Removable Lid for Easy Cleaning, Auto Shut Off, Boil-Dry Protection, Stainless Steel Filter, BPA Free, Borosilicate Glass Electric Tea Kettle

9.9

9.7

9.7

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