The 11 Best Electric Tankless Water Heater in 2024 - Top Rated Picks

Our Top Picks

#1 Stiebel Eltron Tempra 24 Plus Tankless Water Heater 

The Stiebel Eltron Tempra 24 Plus Tankless Water Heater is a powerful and efficient water heating system that offers many benefits to homeowners. With a wattage of 18000 watts, this model can provide hot water on demand, making it a great choice for families or large households. The 24kW, 240V model requires a min recommended electric service of 150 A, and offers an output water temperature of 68° to 140°F, providing flexibility for different hot water needs.

The water heater also comes with a 7-Year Leakage and 3-Year Parts Warranties, which can give buyers peace of mind when making this investment. The digital temperature display allows users to fine-tune the temperature setting to their desired level, and the simple design with few mechanical parts and an easy-to-open cover makes maintenance and repairs hassle-free.

One of the standout features of this water heater is its patented Advanced Flow Control technology, which automatically maintains water temperature for constant comfort. The temperature selector dial in the middle is also super simple to operate, as it's a dial that shows the real-time temperature change, which is a nice touch.

Overall, the Stiebel Eltron Tempra 24 Plus Tankless Water Heater is a reliable and efficient option for homeowners looking to upgrade their water heating system. With its powerful heating capacity, easy-to-use design, and advanced technology, it's a great investment for families and households of all sizes.

#2  ECOTOUCH ECO55 Hot Water Heater

The ECOTOUCH ECO55 Hot Water Heater is a powerful and efficient option for those looking for a tankless electric water heater. The 5.5KW heating system allows for instant, consistent and endless hot water of 116℉ or higher temperature shortly, making it a perfect companion for sinks. This means no waiting for preheat nor terrible temperature up & down, providing a convenient and hassle-free experience.

The electric hot water heater ECO55 is designed to adjust power input based on flow rate and temperature setting in real-time, ensuring a steady supply of hot water. The digital display and touch control panel make it easy to adjust the temperature setting, and the multiple protection devices provide added safety, ensuring that every piece of electric hot water heater goes through strict tests to ensure 100% safety.

The tankless water heater electric is approved by ETL and qualifies for UL, so you can expect outstanding performance for years to come. The inner water and electricity lines are specially designed to run separately to avoid leakage or harm from scale build-up, providing additional safety for users.

The sleek and compact design of the tankless water heater makes it possible to install it anywhere close to an outlet, avoiding energy waste. It can be mounted horizontally, vertically, or obliquely, making it ideal for use in a variety of settings, including kitchens, bars, schools, hospitals, communities, and hair salons.

Overall, the ECOTOUCH ECO55 Hot Water Heater is a reliable and efficient option for anyone looking for a tankless electric water heater. Its real-time power adjustment, digital display, multiple protection devices, and compact design make it a great investment for those seeking a convenient and safe hot water supply.

#3 Rheem ‎RTEX-18 Tankless Electric Water Heater

The Rheem ‎RTEX-18 Tankless Electric Water Heater is a powerful and efficient option for those looking for an electric water heater. The 18 Kilowatts capacity makes it a great choice for households with high hot water demands. The external digital thermostatic control with LED display ensures accuracy to within +/-1 degree, providing a convenient and easy-to-use experience for users.

The Rheem ‎RTEX-18 Tankless Electric Water Heater also features the most advanced self-modulation technology that adjusts power to meet hot water demand, ensuring a steady supply of hot water. The durable Copper immersion two heating elements are field serviceable, providing added convenience and flexibility for maintenance and repairs. The flow rate of up to 4.4 GPM makes it ideal for use in larger households or commercial settings.

The tankless electric water heater is also designed for easy installation, with bottom 3/4 inch NPT water connections and threaded connections for easy replacement. The digital temperature display provides users with real-time temperature information, making it easy to adjust the temperature setting to their desired level.

The Rheem ‎RTEX-18 Tankless Electric Water Heater is an energy-efficient option, helping users save money on their energy bills while also saving water and space. Its compact design allows it to be installed in a variety of settings, making it a versatile option for a range of hot water needs.

Overall, the Rheem ‎RTEX-18 Tankless Electric Water Heater is a reliable and efficient option for those seeking a powerful and versatile electric water heater. Its advanced self-modulation technology, durable heating elements, easy installation, and energy-saving features make it a great investment for households or commercial settings.