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Best Electric Tankless Water Heater

The Ultimate Guide to Choosing the Best Electric Tankless Water Heater

In an era where energy efficiency and smart home technology are at the forefront of homeowner’s minds, the electric tankless water heater has emerged as a game-changer. Unlike traditional water heaters, these innovative devices provide hot water on demand while saving space and energy. This comprehensive guide will explore everything you need to know about electric tankless water heater reviews and help you identify the best electric tankless water heaters for your home.

Understanding Electric Tankless Water Heaters

An electric tankless water heater, also known as an on-demand water heater, is a compact device that heats water instantly without the need for a storage tank. When a hot water tap is turned on, cold water travels through a pipe into the unit where electric elements heat the water. This process results in a constant supply of hot water, a significant advantage over traditional models with limited hot water supply.

The Advantages of Going Tankless

The benefits of installing the best electric tankless hot water heater in your home are numerous:

  • Energy Efficiency: They are more energy-efficient than traditional tank heaters as they heat water only when needed, reducing standby energy losses.
  • Space-Saving Design: Their compact size allows for installation in smaller spaces and even on walls, freeing up valuable floor space in your home.
  • Longer Lifespan: These units typically have a longer lifespan compared to tank heaters, often lasting more than 20 years with proper maintenance.
  • Consistent Hot Water Supply: Say goodbye to cold showers! The best rated electric tankless water heater ensures a continuous hot water supply, perfect for families and multi-bathroom homes.

How to Select the Right Electric Tankless Water Heater

Right Electric Tankless Water Heater

Choosing the best electric tankless hot water heater requires considering several factors to ensure it meets your specific needs:

  • Determine Your Flow Rate Needs

Evaluate your home’s hot water usage, considering the number of bathrooms, kitchen usage, and appliances. The flow rate, measured in gallons per minute (GPM), is crucial in selecting a heater that can handle your household’s demand.

  • Energy Efficiency

Look for heaters with high Energy Star ratings. The more efficient the heater, the more savings on your electric bill.

  • Temperature Control

Opt for models with precise temperature control to ensure comfort and safety. This feature is particularly important in varying climates.

  • 4. Size and Installation

Consider the physical size of the unit and the requirements for installation. While some might be DIY-friendly, others may require professional installation.

Top Electric Tankless Water Heater Reviews

Top Electric Tankless Water Heater

  • EcoSmart ECO 11: Known for its affordability and efficiency, it saves up to 50% on annual hot water costs. With a flow rate of 3.1 GPM and a max temperature of 140°F, it’s a solid choice, though some concerns exist regarding its warranty and customer service.
  • Stiebel Eltron DHC-E12: Offers versatility and is suitable for various installations, including boats and RVs. With a 99% efficiency rating and a flow rate of 2 GPM, it’s ideal for consistent temperatures but may not suit larger homes.
  • Ecotouch Tankless Water Heater: Compact and efficient, ideal for small spaces, providing hot water up to 116°F. Its lower flow rate might not be ideal for showers.
  • Rheem RTEX-18: High efficiency and a high max flow rate of 4.4 GPM make it suitable for larger homes, though its warranty is limited to a year.
  • Titan N-120 Tankless Water Heater: Known for up to 60% energy savings and a 10-year limited warranty. Requires professional installation for warranty validity.
  • Rheem 240V RTEX-13: Compact, easy to install, with a flow rate of 0.4-4 GPM. Ideal for small homes due to its design.

Installation and Maintenance

Installing an electric tankless water heater can range from a straightforward DIY project to requiring professional assistance, depending on the complexity of the model. It’s crucial to follow manufacturer instructions and local building codes. Regular maintenance, such as descaling and filter cleaning, is essential for optimal performance and longevity.


The journey to choosing the best electric tankless water heater can be intricate but rewarding. By understanding your needs, researching options, and considering the long-term benefits, you can select a water heater that provides efficiency, convenience, and comfort. Remember, the right choice will not only serve your immediate hot water needs but also contribute to your home’s overall energy efficiency and value.

Embrace the change, and enjoy the endless supply of hot water with your new electric tankless water heater!