Top 10 Electric Tankless Water Heaters
for January 2022

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1
9.9
SCORE
Ecosmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology,White

Ecosmart ECO 18 Electric Tankless Water Heater

18 KW at 240 Volts with Patented Self Modulating Technology, White

by Ecosmart
What We like

The product is easy to use

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Product Features

  • Save up to 12 cubic feet of storage space.
  • Manufactured in China
  • Copper and stainless components
  • Never run out of hot water with an ECOSMART tankless water heater.
  • Save up to 60% on your water heating costs with the most advanced, self modulating technology available

Save up to 60% on your water heating costs with the most advanced, self modulating technology available The product is highly durable Manufactured in china 75 a Never run out of hot water with an Ecosmart tankless water heater. Copper and stainless components Save up to 12 cubic feet of storage space. Digital temperature control in 1-degree increments gives users complete control of hot water

2
9.6
SCORE
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

EcoSmart ECO 11 Electric Tankless Water Heater

13KW at 240 Volts with Patented Self Modulating Technology

by Ecosmart
What We like

ECOSMART tankless water heaters are 99.8-percent energy efficient.Uniform Energy Factor:0.98

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Product Features

  • Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
  • Never run out of hot water with an ECOSMART tankless water heater
  • Patented Self Modulating Technology and design

Patented self modulating technology and design Save up to 60-percent on your water heating cost with an Ecosmart electric tankless water heater Never run out of hot water with an Ecosmart tankless water heater

3
9.5
SCORE
Stiebel Eltron Tankless Water Heater – Tempra 24 Plus – Electric, On Demand Hot Water, Eco, White, 20.2

Stiebel Eltron Tankless Water Heater – Tempra 24 Plus – Electric

On Demand Hot Water, Eco, White, 20.2

by Stiebel Eltron
What We like

TEMPRA 24 PLUS This specific model is 24kW, 240V/208V, requires a min. recommended household electric service of 150 A, and offers an output water temperature of 68 to 140F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels

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4
9.2
SCORE
Rheem RTEX-18 18kW 240V Electric Tankless Water Heater, small, Gray

Rheem RTEX-18 18kW 240V Electric Tankless Water Heater

small, Gray

by Rheem
What We like

Threaded for easy replacement, simple installation, digital temperature display

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Product Features

  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Simple installation bottom 3/4 inch NPT water connections
  • External digital thermostatic control with LED display (+/1 degree accuracy)

Simple installation bottom 3/4 inch npt water connections Durable copper immersion two heating elements, field serviceable. flow rate- up to 4.4 gpm Most advanced self-modulation, adjust power to meet hot water demand External digital thermostatic control with led display (+/1 degree accuracy)

5
8.9
SCORE
Rinkmo Electric Tankless Water Heater 18KW 240V Instant Hot On Demand Residential Electric Water Heater for Bathroom Bathtub rv Whole House Shower Sink Small

Rinkmo Electric Tankless Water Heater 18KW 240V Instant Hot On Demand Residential Electric Water Heater for Bathroom Bathtub rv Whole House Shower Sink Small

by Rinkmo
What We like

Compact Size Save SpaceRinkmo water heater only like a small suitcase, save your space and giving more to your living area. Easy to install and operation, set temp by turning the button, press the button to switch between Fahrenheit/ Celsius.

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Product Features

  • Stable Water Temp for Whole HouseOur smart modulating technology and formula to calculate the difference between the desired temp and current temp, adjusts power input based on flow rate and temp setting in real time by our temp sensors and flow sensors. No sudden temp changes.
  • TIPSPlease notice that the 18KW tankless water heater requires 2 x 40 AMP breakers and 2 x 8 AWG wire, the Min. Water Flow is 0.4GPM/1.5L/min. The 24KW tankless water heater requires 3 x 40 AMP breakers and 3 x 8 AWG wire, and the Min. Water Flow is 0.66GPM/2.5L/min.
  • Stable Water Temp for Whole House Our smart modulating technology and formula to calculate the difference between the desired temp and current temp, adjusts power input based on flow rate and temp setting in real time by our temp sensors and flow sensors. No sudden temp changes.

Stable water temp for whole houseour smart modulating technology and formula to calculate the difference between the desired temp and current temp, adjusts power input based on flow rate and temp setting in real time by our temp sensors and flow sensors. no sudden temp changes. Stable water temp for whole house our smart modulating technology and formula to calculate the difference between the desired temp and current temp, adjusts power input based on flow rate and temp setting in real time by our temp sensors and flow sensors. no sudden temp changes. Tipsplease notice that the 18kw tankless water heater requires 2 x 40 amp breakers and 2 x 8 awg wire, the min. water flow is 0.4gpm/1.5l/min. the 24kw tankless water heater requires 3 x 40 amp breakers and 3 x 8 awg wire, and the min. water flow is 0.66gpm/2.5l/min.

6
8.7
SCORE
Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

by Ecosmart
What We like

Sleek and compact design with digital output temperature display

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Product Features

  • Pipe Fittings:3/4 inch NPT
  • 150 A
  • Required Breaker:4 x 40 A
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States

Required breaker:4 x 40 a Ecosmart tankless water heaters are 99.8-percent energy efficient 150 a Pipe fittings:3/4 inch npt Manufactured in united states

7
7.4
SCORE
Titan Electric Tankless Water Heater

Titan Electric Tankless Water Heater

by Niagara Industries Inc
What We like

54 Max Amps

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Product Features

  • 220 V
  • Tankless Water Heater

220 v Tankless water heater

8
7.1
SCORE
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

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

Gray

by Rheem
What We like

On demand, consistent and continuous hot water

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Product Features

  • ON/OFF Dial Control with adjustable digital temperature display
  • Bottom 3/4" NPT water connections
  • Self-modulating power control
  • 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24

Bottom 3/4" npt water connections On/off dial control with adjustable digital temperature display 24kw model flow rate: up to 5.9 gpm for rtex-24 Self-modulating power control

9
7.1
SCORE
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4)

Eliminate Time for Hot Water, Shelf, Wall or Floor Mounted

by BOSCH THERMOTECHNOLOGY
What We like

EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water

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Product Features

  • FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
  • CONVENIENT HOT WATER HEATER: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 13.5 D Inches
  • INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
  • LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)

Convenient hot water heater: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. thermal efficiency is 98%. dimensions : 13.75 w x 13.75 h x 13.5 d inches Fast recovery rate: eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time) Long lasting quality: this electric water heater is easy to maintain and has premium glass-lined material for a long service life. (amps 12a, volts (vac) 120) Independent installation: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source

10
7.1
SCORE
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY

Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater

GRAY

by Rheem
What We like

Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM

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Product Features

  • 54 A
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1f. Water-Saver Shower Head 1.5 GPM
  • Simple installation 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy

External adjustable digital thermostatic control with led display (+/1 degree accuracy 54 a 99.8% energy efficient. external controls to adjust temperature in increments of 1f. water-saver shower head 1.5 gpm Simple installation 1/2 npt adapters included; side 1/2 inch compression water connections Durable copper immersion two heating elements, field serviceable.self-modulating power control

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