Tankless electric water heaters are revolutionizing home energy efficiency by providing on-demand hot water without the need for bulky storage tanks. In 2025, the market is filled with top contenders that offer exceptional performance, energy savings, and innovative features. From compact models perfect for small spaces to high-capacity units suitable for larger households, these heaters cater to diverse needs while ensuring consistent hot water supply. With advancements in technology, the best tankless electric water heaters are not only more efficient but also easier to install and maintain, making them a smart choice for modern homes.
SALE
−$91.24
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
- 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.Amperage Draw : 54 A.Special Features: Energy Efficient
- 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
$207.76
SALE
−$20.53
Rheem 18kW 240V Tankless Electric Water Heater, Gray
- 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
$428.47
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
- 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
$497.99
SALE
−$289.17
Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White, 23
- On demand a continuous and unlimited supply of hot water
- Sleek design saves space and no venting required, It also features two different temperature memory presets, making it easy to adjust for personalized needs.
- Requires hard-wired 240 or 208-volt electric service, with a maximum draw of 28,800 watts at 240 volts or 21,600 watts at 208 volts
- Requires 3 separate dedicated 40 amp breakers with 8 gauge copper wiring, and a minimum of 200 amp total service to the residence
$509.83
Tankless Water Heater Electric with Remote, On Demand Under Sink Hot Water Heater Electric 110V with LED Display - Automatic Control System - Fault Self-Test Function (3000W Pure White, Pure White)
- Instant Thermostatic Water Heater - Tankless electric water heater adopts 3000W-5000W heating system, no preheating required, rapid heating in 3 seconds, providing instant hot water. Instant, continuous, endless hot water It is the perfect companion to your sink, giving you the perfect experience of comfort and relaxation.
- Remote Control Water Heater - Instantaneous electric water heater adopts ultra-thin and smooth appearance design, which is beautiful and elegant. The water temperature can be adjusted by remote control and touch, making it more convenient to use. Three-level power adjustment of constant temperature water outlet, say goodbye to hot and cold, the temperature can reach 55℃/131℉.
- Save Space and Energy - Our tankless water heaters are compact and fit easily under your sink, making them perfect for every corner of your home without taking up space. The thermal efficiency of tankless electric water heaters is as high as 99%, allowing you to enjoy hot water at any time and save energy.
- Safety Protection - Our instant electric water heater has been rigorously tested and has multiple protection functions: water and electricity isolation, IPX4 waterproof, leakage protection, dry boil protection, automatic power off under overheating and inactivity. Prevent leakage and water pipe corrosion.
- Easy to Install - The domestic tankless water heater adopts a mini design, which is very convenient to install in the bathroom, kitchen and under the sink, etc. where it is needed in the home. Standard 1/2 connection (in or out) for direct connection to conventional household hose connectors. If you still have questions, please feel free to contact us.
$99.99
SALE
−$4.80
Generic Tankless Water Heater Electric, Instant Hot Water Heater Under Sink, 3000W 110V On Demand Mini Water Heater for RV Kitchen Bathroom, White
- With 3000W power, the water heater can raise the water by 45° F(0.3GPM) /27° F(0.5GPM) in seconds. You can adjust the water flow to meet your outlet temperature requirement. The Larger water flow, the lower outlet temperature; The smaller water flow, the higher outlet temperature. Not Suitable for Shower(Shower normally requires at least 1.8 gpm). You can set Fahrenheit or Celsius degrees by holding power button for 6 seconds.
- IMPORTANCE before purchase: 3000W at 110V draw max 27A, Required breaker 31AMP, Wire gauge 10AWG, Water connection G1/2.
- Premium material: 304 stainless steel lining, 316L stainless steel heating pipe, sturdy ABS shell, uni-corrosion brass interface. IPX4 waterproof, dry burning protection, leakage protection, and overheating protection upgrade safety level
- Automatic standby mode ensures that you enjoy heated water at any time. One-touch operation provides convenience.
- This mini water heater is ideal for limited spaces such as kitchens, apartments, bathrooms, RVs. Not Suitable for Shower(Shower normally requires at least 1.8 gpm)
$51.99
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY
- 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
$282.95
Titan Electric Tankless Water Heater
Rheem 11kW 240V Tankless Electric Water Heater
- 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
$269.00
Electric Tankless Water Heater SIVUATEK 14kW, 240V - On-Demand Hot Water for Whole House - ETL Certified, Self Modulating - Compact Design for Easy Installation - for 2 Point of Use Hot Water
- 【Electric Tankless Water Heater】The V7B-140B is compact design for point of use, in the meanwhile it is able to provide sufficient and luxury endless hot water with its powerful 14kW heating system. It is great idea to install this kind of tankless water heater electric a few ft away from the shower or washing machine, to get instant and sufficient hot water of 110℉ in seconds.
- 【Smart Electric Water Heater】The electric instant water heater V7B-140B adjusts power input based on flow rate and temp setting real time, thus, you get stable temperature out of it even when flowrate changes, which commits comfortable hot water, safety and optimal energy efficiency of 98%, saving considerable electric charge.
- 【CONVENIENT USE】Discover the ultimate convenience with the V7B-140B，a 14kW electric tankless water heater. Featuring a user-friendly digital display and touch control panel, setting your desired temperature is a breeze. The intuitive screen provides clear, real-time updates on the working status of this 240V heater, eliminating the need for complicated adjustments or lengthy learning curves. Simply turn on the faucet and let the smart, instant hot water heater deliver reliable, on-demand hot water with ease. Enjoy modern comfort and efficiency at your fingertips.
- 【Safe& Durable Water Heater】The on demand electric water heater is newly updated and applied with multiple protection devices, such as leakage protection, over heating protection and auto stop. Every piece of V7B-140B goes through strict tests and it is listed by ETL and qualifies for UL. Totally suitable for household, school, hospital, office, bar and other public facility.
- 【Point of Use Water Heater Electric】The sleek electric tankless water heater V7B-140B is compact as a shoe box, making it possible to install anywhere point of use to avoid energy and water waste. It comes with standard plumbing connections 1/2" NPT for easy installation with basic DIY skills
$199.99
Last update on 2025-05-02 / Affiliate links / Images from Amazon Product Advertising API