10 Best water heaters of 2026

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1

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Rinnai
NEW Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 11.1 GPM, 199,000 BTU
Main highlights

Versatile Installation
Install indoors or outdoors with Smart Sense gas control.

Ideal for Large Households
Supports up to 7 fixtures simultaneously with 11.1 GPM.

Endless Hot Water
Customers praise its ability to provide continuous hot water.
9.9

Exceptional

Our Rating

8.0
Easy installation

8.0
Temperature control
How do we rank?

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2

Rheem
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Main highlights

Compact Design and Efficiency
Small, suitcase-sized unit that saves space and energy.

Ideal for Whole House Use
Perfect for families needing continuous hot water supply.

Highly Praised Continuous Hot Water
Never run out of hot water, even with high demand.
9.7

Exceptional

Our Rating

9.5
Efficient Energy Use

9.3
Temperature control

8.2
Easy installation
3

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.
9.6

Exceptional

Our Rating

8.2
Easy installation

8.2
Efficient Energy Use

8.2
Temperature control
4

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

17% 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.
9.5

Excellent

Our Rating

9.1
Efficient Energy Use

8.7
Easy installation

8.4
Temperature control
5

xwdzswgs

Tankless Water Heater Electric 110V, 3000W Instant Electric Water Heater, Under Sink Water Heater with Digital Display, On Demand Hot Water heater Electric for Kitchen Bathroom Washin
9.4

Excellent

Our Rating
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6

VEVOR
VEVOR Electric Water Heater, 10 Gallon Tank Instant Hot Water Heater, 1.6Kw Tankless Water Heater w/LED Display,Knob Control, IPX4 Waterproof Side Connection On Demand Heaters for Shower, Bath

11% Off
Main highlights

Ample Hot Water Capacity
10-gallon tank ensures sufficient hot water for family needs, reducing wait time with 1600W power.

Versatile Application
Ideal for kitchens, bathrooms, and commercial spaces like airports and malls.

Continuous Hot Water Delivery
Extended immersion heating element praised for 24-hour hot water availability.
Key specs
- special features:N/A
- Brand:VEVOR
- Size:10 Gal
- Color:White
- Wattage:1600W
9.3

Excellent

Our Rating
7

BISELONG
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)
Main highlights

Energy Efficient and Compact
This 2.5-gallon mini-tank water heater offers 98% thermal efficiency, providing on-demand hot water while saving space under your sink.

Ideal for RVs and Small Spaces
Perfect for RVs, kitchens, and bathrooms, offering quick installation and reliable hot water supply without the need for large tanks.

Quick Heating and Easy Installation
Customers praise its fast water heating capabilities and straightforward installation, making it a user-friendly addition to any home.
9.0

Excellent

Our Rating

8.9
Tech Support

8.9
materials Quality

8.4
Easy installation
8

BSEED

BSEED Immersion Water Heater Electric, 2000W Fast Heating Portable Water Heater with 304 Stainless Steel Guard & Digital LCD Thermometer, Heats 5 Gallons in Minutes for Camping, Bath & Small Pool
8.7

Very Good

Our Rating
9

Rheem
Rheem 3.5kW 120V Point of Use Thermostatic Tankless Electric Water Heater
Main highlights

Endless Hot Water Supply
Provides consistent on-demand hot water without running out.

Ideal for Space-Saving Installations
Perfect for point-of-use applications due to compact size.

Praised for Energy Efficiency
Customers appreciate the energy-saving feature, heating only when needed.
8.6

Very Good

Our Rating
10

Laoaivena

1500W Immersion Water Heater with Digital LCD Thermometer & Stainless Steel Guard - Fast Heating for Bathtub, Travel Camping Mini Pool, Bucket | Safe & Portable Heat 5 Gallons of Water in Minutes

13% Off
8.3

Good

Our Rating

10 Best water heaters of 2026

1

NEW Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 11.1 GPM, 199,000 BTU

8.0

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

9.5

9.3

8.2

3

Rheem 18kW 240V Tankless Electric Water Heater, Gray

8.2

8.2

8.2

4

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

9.1

8.7

8.4

5

Tankless Water Heater Electric 110V, 3000W Instant Electric Water Heater, Under Sink Water Heater with Digital Display, On Demand Hot Water heater Electric for Kitchen Bathroom Washin

6

VEVOR Electric Water Heater, 10 Gallon Tank Instant Hot Water Heater, 1.6Kw Tankless Water Heater w/LED Display,Knob Control, IPX4 Waterproof Side Connection On Demand Heaters for Shower, Bath

7

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)

8.9

8.9

8.4

8

BSEED Immersion Water Heater Electric, 2000W Fast Heating Portable Water Heater with 304 Stainless Steel Guard & Digital LCD Thermometer, Heats 5 Gallons in Minutes for Camping, Bath & Small Pool

9

Rheem 3.5kW 120V Point of Use Thermostatic Tankless Electric Water Heater

10

1500W Immersion Water Heater with Digital LCD Thermometer & Stainless Steel Guard - Fast Heating for Bathtub, Travel Camping Mini Pool, Bucket | Safe & Portable Heat 5 Gallons of Water in Minutes

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