Are you looking for the tankless electric water heaters? Do you know what to consider before buying one? Well, we’ve managed to put together a list of the best tankless electric water heaters for your consideration. You can choose one and use it according to your needs.

In most cases, customers lack knowledge about market conditions, which leads to poor purchasing decisions. Fortunately, you have come to the right place as we will present you with a complete guide on how to select the tankless electric water heaters for you. We have searched for hours and spent a lot of time and effort making sure you get a good return on your hard-earned money.

Best tankless electric water heaters

Rheem 18kW 240V Tankless Electric Water Heater

EDITOR’S CHOICE

Specifications:

Rheem 18kW 240V Tankless Electric Water Heater

$440.00  in stock
14 new from $440.00
3 used from $319.52
Amazon.com
as of August 7, 2022 10:46 am

Features

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

EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology

PREMIUM PICK

Specifications:

EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology

$499.00
$422.01
 in stock
13 new from $412.00
3 used from $271.18
Free shipping
Amazon.com
as of August 7, 2022 10:46 am

Features

  • The product is highly durable
  • The product is easy to use
  • Manufactured in China
  • Amperage (amps): 75. Activation flow: 0. 3 GPM. Flow Rate @ 35 F Rise (gallons/min): 3. 51 gal (US)/min
  • The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire

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

PREMIUM CHOICE

Specifications:

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

$575.02  in stock
12 new from $575.00
6 used from $389.21
Free shipping
Amazon.com
as of August 7, 2022 10:46 am

Features

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

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

Specifications:

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

$299.00
$223.06
 in stock
21 new from $200.00
4 used from $172.34
Free shipping
Amazon.com
as of August 7, 2022 10:46 am

Features

  • Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
  • EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution

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

Specifications:

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

$280.00  in stock
16 new from $280.00
1 used from $255.81
Amazon.com
as of August 7, 2022 10:46 am

Features

  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM

Tankless Water Heater Electric, thermomate 3.5kW 120V Point of Use On Demand Hot Water Heater Self Modulating ET035

Specifications:

Tankless Water Heater Electric, thermomate 3.5kW 120V Point of Use On Demand Hot Water Heater Self Modulating ET035

$179.99
$139.99
 in stock
Amazon.com
as of August 7, 2022 10:46 am

Features

  • Instant Heating - 24 hours ready to continuously supply instantaneous hot/warm water at preset temperature throughout your home only when needed. NO standby energy consumption. NO wait for tank to fill up. MUTS HARD WIRED. Drawing only 110-120 Volts
  • Space Savings - 7.8W×6.3H×3.9D inch, compact small Point of Use water heater designed for Single Sink use, wall mounted fitting in small spaces throughout kitchen closet, bathroom sink, hair salons, bar counters and hotel receptions. Temperature ranges from 85°F- 131°F
  • Self Modulating - On demand water heater automatically adjust the power based on the change of inlet water flow and temperature, saving up to 50% energy consumption and preventing over-heating.
  • Safe & Healthy - ETL certified and equipped with Multiple Protection from leakage, dry fire, over-heating and over pressure. IP25 waterproof. Stainless steel heating element and no storage water, preventing sediment / scale build-up.
  • User Friendly - Touch control panel and digital temperature display, easy to set your desired temp. Lightweight and easy to install vertically facing up or down. Open tap to start the unit heating with activation flow rate of 0.4GPM.

Hot Water Heater,110V 3000W Mini Electric Tankless Instant Hot Water Heater Bathroom Kitchen Washing (US Plug)(Black)

Specifications:

Hot Water Heater,110V 3000W Mini Electric Tankless Instant Hot Water Heater Bathroom Kitchen Washing (US Plug)(Black)

$3.99  in stock
7 new from $3.98
Amazon.com
as of August 7, 2022 10:46 am

Features

  • 【SELLER TIPS】Those who mind will buy with caution! ! !The heating power of this product is constant, the temperature is adjusted by the water flow regulating valve or the tap switch, the high temperature of the water flow is low, and the low temperature of the water flow is high. According to our actual tests, the outdoor water temperature is low, and the water flow should not be too large, which is suitable for daily washing. Those who mind will buy with caution! ! !
  • 【INSTANT & SUFFICIENT HOT WATER】The heating of the product is adjusted by the water flow regulating valve or the faucet switch. Large water flow means low temperature, and small water flow means high temperature. Applied with 3000W heating system, the electric water heater supplies instant, consistent and endless hot water shortly, no waiting for preheat nor terrible temp up & down, perfect companion for sinks. Time to get rid of those "lukewarm" toys.
  • 【SMART SELF ADJUSTMENT】The hot water heater adjusts power input based on flowing rate and temp setting in real time. thus you still get ideal temperature instead of scalding hot water, which means comfortable experience, simple operation. It is recommended that the product be washed in winter for hand washing, dish washing, face washing and other scenes;Those who mind will buy with caution! ! !
  • 【Eco & Electric & Water Saving】 Safe heater, save up to 55% on your electric cost, water saving, no pollution, no exhaust gas.The heating of the product is adjusted by the water flow regulating valve or the faucet switch. Large water flow means low temperature, and small water flow means high temperature. It is recommended that the product be washed in winter for hand washing, dish washing, face washing and other scenes.
  • 【SAFE AND DURABLE】Applied with multiple protection devices, every piece goes through strict tests to ensure 100% safe. Inner water and electricity lines are designed to run separately so as to avoid leakage or harm of scale build up. Safe heater, electricity saving, water saving, no pollution, no exhaust gas.The temperature is adjusted by the water flow regulating valve or the tap switch.Those who mind will buy with caution! ! !

Airthereal Electric Tankless Water Heater 18kW, 240Volts – Endless On-Demand Hot Water – Self Modulates to Save Energy Use – Small Enough to Install Anywhere – for 2 Showers, Evening Tide series

Specifications:

Airthereal Electric Tankless Water Heater 18kW, 240Volts - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere - for 2 Showers, Evening Tide series

$299.99  in stock
Amazon.com
as of August 7, 2022 10:46 am

Features

  • ☼ Endless Hot Water: Imagine you are the last one in your family to take a shower before heading out for the day. You turn on the faucet and the water is freezing cold. Too bad you don’t have an Airthereal Electric Tankless Water to provide endless hot water on demand with no preheating, temperature fluctuations, or running out of hot water in the tank.
  • ☼ Save Space: That water heater in the basement or utility closet takes up a ton of space. This wall-mounted water heater uses 90% less space than a traditional hot water heater with a tank.
  • ☼ Save Energy: Water is only heated when you need it, not stored in a hot water tank. The self-modulating temperature technology only uses energy to heat up water while you are using it to save up to 50% on water heating costs compared to a typical tank water heater.
  • ☼ Important Note: In order to install 18kW Electric Tankless Water Heater it requires 240 Voltage, 2 x 40 AMP Circuit Breaker Size and a set of 2 x (8AWG/2) wires. Please check to confirm that your breaker panel meet these specifications.
  • ☼ Safe To Use: With high temp protection, dry heating protection, and electrical leakage protection you can rest easily knowing you have safe, on-demand hot water to use on your schedule. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion.

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

Specifications:

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

$599.00  in stock
3 new from $599.00
6 used from $387.56
Free shipping
Amazon.com
as of August 7, 2022 10:46 am

Features

  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States
  • Pipe Fittings:3/4 inch NPT
  • Required Breaker:4 x 40 A

Rheem 11kW 240V Tankless Electric Water Heater

Specifications:

Rheem 11kW 240V Tankless Electric Water Heater

$305.09  in stock
12 new from $304.99
1 used from $233.93
Free shipping
Amazon.com
as of August 7, 2022 10:46 am

Features

  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control
  • 11kW Model Flow Rate: up to 2.68 GPM
  • Side 1/2" NPT water connections
  • On demand, consistent and continuous hot water