best trutankless electric water heater that might surprise you
Looking for an efficient hot water solution? The best tankless electric water heater provides instant hot water, saving space and energy!
When it comes to hot water solutions, the best tankless electric water heater is a professional choice. Products like the 14kW Tankless Water Heater Electric and the Rheem 18kW 240V Tankless Electric Water Heater offer rapid heating and energy efficiency, making them perfect for homes with high-demand hot water needs.
These heaters are versatile, ideal for various applications, from kitchen use to bathroom needs. With features like LED digital displays and ETL certification, they ensure safety and convenience while delivering up to 3.38 GPM for multiple outlets.
In this review, you’ll learn about the top models, their unique features, and how they can enhance your hot water experience. Get ready to find the perfect solution for your home!


ORBEK 14kW Electric Tankless Water Heater
14kW Tankless Water Heater Electric: 14.2”H x 9.5”L x 3.1”W, ETL Certified, 2-year warranty.
Benefits
- Provides up to 3.38 GPM of endless hot water for 2-3 points of use simultaneously.
Drawbacks
- Requires a 240V/60AMP two-pole breaker for installation.
The Orbek 14kW Tankless Water Heater delivers instant hot water, making it an excellent choice for households with multiple hot water needs. Its compact design allows for easy installation in small spaces, saving over 50% of the space compared to traditional tank heaters. The impressive energy efficiency can potentially reduce electricity costs by up to 60% compared to conventional models.
Safety is paramount with this unit, featuring advanced protections against leaks, over-temperature, and dry heating. The built-in chip ensures stable temperature control, adjusting heating power 20,000 times per second to maintain a consistent water temperature within 1°F. The LED digital display allows for easy temperature adjustments, making it user-friendly.
However, installation requires specific electrical setups, which may necessitate professional help. Additionally, the unit is not suitable for those looking for a dishwasher-safe option, as all parts are non-dishwasher safe.
A practical pick for small spaces, the Orbek 14kW Tankless Water Heater is ideal for those seeking efficient, on-demand hot water solutions.
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Rheem 18kW Tankless Electric Water Heater
Rheem 18kW 240V Tankless Electric Water Heater: 18” long, durable copper, 2-year warranty.
Benefits
- Flow rate of up to 4.4 GPM ensures consistent hot water supply for multiple outlets.
Drawbacks
- Requires professional installation which may add to overall costs.
This Rheem electric water heater features advanced self-modulation technology, adjusting power based on hot water demand. The external digital thermostatic control with LED display allows for precise temperature settings within +/- 1 degree accuracy, making it user-friendly. The durable copper immersion heating elements are field-serviceable, enhancing longevity and ease of maintenance.
Installation is straightforward with bottom 3/4 inch NPT water connections, but it is recommended to hire a professional for optimal setup. The unit’s compact design makes it ideal for small spaces, providing an efficient solution without taking up much room. However, users should be aware that installation costs can vary depending on local rates.
Overall, the Rheem 18kW Tankless Electric Water Heater is a practical choice for those seeking a reliable and efficient hot water solution, particularly in limited spaces.
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Stiebel Eltron Instant Electric Water Heater
Tankless Water Heater Electric 110V: 12” long, ABS plastic, 2-year warranty.
Benefits
- Holds 5L without tipping.
Drawbacks
- No dishwasher-safe parts.
The Tankless Water Heater Electric 110V is an efficient solution for instant hot water needs. With a powerful 3000W output, it can raise water temperatures significantly in seconds, making it ideal for kitchens and bathrooms. The compact design allows it to fit seamlessly under sinks, making it perfect for small spaces. Its ABS plastic construction ensures durability while maintaining a sleek appearance.
This water heater boasts a thermal efficiency of 98%, providing continuous hot water without the wait. The digital display allows users to easily monitor and adjust temperatures in Fahrenheit or Celsius. Safety features, including leakage protection and automatic power off, ensure reliable operation.
However, it’s important to note that there are no dishwasher-safe parts, which may be a drawback for some users. Installation is straightforward, but the unit must be installed vertically to function correctly. Overall, this tankless water heater is a practical pick for small spaces, offering convenience and efficiency for those who need on-demand hot water.
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EcoSmart ECO 11 Electric Tankless Water Heater
EcoSmart ECO 11 Electric Tankless Water Heater: 11.5” x 8” x 3.75”, ABS plastic, 2-year warranty.
Benefits
- Provides up to 3.1 gallons-per-minute depending on inlet water temperature.
- 90% smaller than traditional tank heaters, saving valuable space.
- 99% thermal energy efficient, only heats water when needed.
Drawbacks
- Requires 54 A amperage draw, which may necessitate electrical upgrades.
- No built-in temperature display for real-time monitoring.
The EcoSmart ECO 11 is an excellent choice for those seeking an energy-efficient and compact hot water solution. Its tankless design ensures that you have endless hot water whenever you need it, making it ideal for small bathrooms, kitchens, or office breakrooms. The heater’s ability to provide up to 3.1 gallons-per-minute means you won’t run out of hot water during your showers or dishwashing.
However, potential buyers should note that the unit requires a significant amperage draw, which might require electrical adjustments in some homes. Additionally, the lack of a built-in temperature display can make it less convenient for users who prefer real-time monitoring of water temperature.
A practical pick for small spaces, the EcoSmart ECO 11 is perfect for anyone looking to maximize efficiency while minimizing their footprint.
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ECOTINYMACH 110V Tankless Electric Water Heater
ECOTINYMACH 110V Tankless Water Heater Electric: 12” long, ABS plastic, 2-year warranty.
Benefits
- Holds 5L without tipping.
Drawbacks
- No dishwasher-safe parts.
The ECOTINYMACH 110V Tankless Water Heater is a compact and efficient solution for heating water in tight spaces. Its 12-inch length and lightweight ABS plastic construction make it easy to install under sinks, maximizing your available area. With a capacity to hold 5 liters without tipping, it offers reliability and stability during use.
A standout feature is the convertible temperature scale, allowing users to switch between Fahrenheit and Celsius easily. This is particularly useful for those who prefer monitoring their water temperature in their preferred unit. The heater’s electric design ensures energy efficiency, helping reduce utility bills while being environmentally friendly.
Installation is straightforward, requiring a circuit breaker of at least 32AMP and a thread size of 1/2″ NPT. The heater’s energy-efficient operation makes it an excellent choice for eco-conscious consumers.
However, potential buyers should note that there are no dishwasher-safe parts, which may require manual cleaning. Overall, the ECOTINYMACH 110V Tankless Water Heater is a practical pick for small spaces, delivering efficient performance without compromising on convenience.
To buy this product, click here.
Faq about best trutankless electric water heater:
1: What is a TruTankless electric water heater?
A TruTankless electric water heater is a high-efficiency, on-demand water heating system that provides instant hot water without the need for a storage tank.
2: How does a TruTankless water heater work?
It heats water directly as it flows through the unit, eliminating standby heat loss associated with traditional tank heaters.
3: What are the benefits of using a TruTankless electric water heater?
Benefits include energy efficiency, endless hot water supply, space-saving design, and reduced utility bills.
4: How much does a TruTankless electric water heater cost?
Prices vary based on capacity and features, typically ranging from $800 to $2,500, excluding installation costs.
5: Is installation difficult for a TruTankless water heater?
Installation can be complex and is best performed by a licensed plumber or electrician to ensure proper setup and compliance with local codes.
6: What maintenance is required for a TruTankless electric water heater?
Regular maintenance includes descaling to prevent mineral buildup and checking the filters and connections for optimal performance.
7: How long do TruTankless electric water heaters last?
With proper maintenance, they can last 20 years or more, significantly longer than traditional tank water heaters.
Conclusion
The ORBEK 14kW Electric Tankless Water Heater exemplifies efficiency and compact design, catering to modern households seeking reliable hot water solutions. Its impressive heating capacity ensures a continuous supply, making it a commendable choice for various domestic applications.
Conversely, the Rheem 18kW Tankless Electric Water Heater stands out with its robust performance and advanced technology, delivering optimal energy savings while maintaining consistent water temperatures. Both products represent the pinnacle of innovation in water heating, addressing diverse consumer needs with sophistication and reliability.





