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10 Best Point Of Use Tankless Electric Hot Water Heaters 2026 in the United States

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Our Top Picks

#1

Winner

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

Rating
10.0
Chosen by1,415
Energy Efficiency
Installation Requirements

Most important from
3909 reviews

Energy Efficiency
Noticeable energy savings were observed, with one user reporting a decrease in their monthly bill from $120 to $90.
Installation Requirements
Installation was straightforward and the unit worked exactly as intended, heating water quickly.

The Rheem RTEX-24 is a well-regarded electric tankless water heater designed for those seeking consistent and on-demand hot water. With a flow rate of up to 5.9 gallons per minute (GPM), it’s capable of handling multiple hot water applications simultaneously, making it suitable for small to medium-sized homes or apartments. Its 24kW power rating ensures efficient heating, while an impressive energy efficiency rating of 99.8% means lower energy bills over time.

One of the standout features is the ON/OFF dial control with an adjustable digital temperature display, which allows users to easily set the desired temperature. Additionally, the self-modulating power control ensures that energy is used efficiently based on the demand for hot water, which is a significant advantage in terms of energy savings. The unit is designed for wall mounting, freeing up floor space and making installation relatively straightforward for a professional.

The Rheem RTEX-24 is a strong contender for anyone looking for a dependable point-of-use tankless water heater that balances performance and energy efficiency.

Rating
10.0
Chosen by1,415
Energy Efficiency
Installation Requirements

Most important from
3909 reviews

Energy Efficiency
Noticeable energy savings were observed, with one user reporting a decrease in their monthly bill from $120 to $90.
Installation Requirements
Installation was straightforward and the unit worked exactly as intended, heating water quickly.
#2

Rheem 8kW 240V Tankless Electric Water Heater

Rating
9.1
Flow Rate
Power Rating
Energy Efficiency

Most important from
3909 reviews

Flow Rate
Important to adjust the output valve or use a flow limiter to avoid issues with water temperature consistency.
Power Rating
The 8kW unit is barely enough for a shower and cannot heat water for other uses simultaneously.
Energy Efficiency
Perfect for small studio apartments, efficiently powering a shower, bathroom sink, and kitchen sink.
Warranty
Concerns about product reliability, as one unit stopped heating after just three months.

The Rheem 8kW 240V Tankless Electric Water Heater offers a decent flow rate of up to 1.95 GPM, which should be sufficient for small household applications such as a single sink or shower. With an 8kW power rating, this unit is well-suited for point-of-use applications, providing on-demand and continuous hot water without the need for a storage tank. The adjustable digital temperature display and ON/OFF dial control add convenience, allowing users to set their preferred water temperature easily.

Self-modulating power control helps in maintaining energy efficiency by adjusting power usage based on hot water demand, which can lead to energy savings over time. Installation is straightforward with its wall mount design and side 1/2" NPT water connections. However, the unit's performance may be limited in colder climates where higher temperature rise is needed, and it might not be powerful enough for larger households or multiple simultaneous water uses.

At 6.38 pounds, the unit is lightweight, and its compact dimensions (8.25"W x 12.63"H) make it a space-saving option. The unit comes with fittings and aerators included. This heater is best for users needing an easy-to-install solution for single-point use, rather than whole-house water heating needs.

Rating
9.1
Flow Rate
Power Rating
Energy Efficiency

Most important from
3909 reviews

Flow Rate
Important to adjust the output valve or use a flow limiter to avoid issues with water temperature consistency.
Power Rating
The 8kW unit is barely enough for a shower and cannot heat water for other uses simultaneously.
Energy Efficiency
Perfect for small studio apartments, efficiently powering a shower, bathroom sink, and kitchen sink.
Warranty
Concerns about product reliability, as one unit stopped heating after just three months.
#3

Stiebel Eltron Tankless Water Heater - Tempra 15 Trend – Electric, On Demand Hot Water, Eco, White

Rating
9.1
Flow Rate
Power Rating
Temperature Rise

Most important from
2201 reviews

Flow Rate
Provides a continuous flow of hot water, even when running two showers simultaneously.
Power Rating
No power usage when not in use, offering instant hot water even after long periods of inactivity.
Temperature Rise
Precise temperature control ensures you get the desired hot water without fuss.
Energy Efficiency
Efficient and eco-friendly, using only the necessary amount of hot water.
Installation Requirements
Installation is versatile, can be placed anywhere without requiring a flue.

The Stiebel Eltron Tankless Water Heater - Tempra 15 Trend is an excellent option for those seeking continuous, on-demand hot water. With a flow rate of up to 1.5 gallons per minute and a robust 14.4 kW power rating, it ensures a steady supply of hot water for your household needs. The unit's energy efficiency is enhanced by its auto-modulation feature, which adjusts power consumption based on hot water demand, making it both eco-friendly and cost-effective.

Additionally, its compact and sleek white design saves space and doesn't require venting, making installation simpler and more versatile in different home setups. The heater operates silently, and its digital temperature display is user-friendly, while the internal solid copper heating system provides reliable performance. However, it's essential to note that the Tempra 15 Trend requires a minimum recommended electric service of 100 A, which might necessitate electrical upgrades for some homes.

Its maximum flow rate might not suffice for larger households with high simultaneous hot water demands. The product comes with a 7-year leakage warranty and a 3-year parts warranty, reflecting Stiebel Eltron's confidence in their product's durability and reliability. This model is particularly well-suited for small to medium-sized households looking for an energy-efficient and space-saving solution for their hot water needs.

Rating
9.1
Flow Rate
Power Rating
Temperature Rise

Most important from
2201 reviews

Flow Rate
Provides a continuous flow of hot water, even when running two showers simultaneously.
Power Rating
No power usage when not in use, offering instant hot water even after long periods of inactivity.
Temperature Rise
Precise temperature control ensures you get the desired hot water without fuss.
Energy Efficiency
Efficient and eco-friendly, using only the necessary amount of hot water.
Installation Requirements
Installation is versatile, can be placed anywhere without requiring a flue.

Buying Guide for the Best Point Of Use Tankless Electric Hot Water Heaters

Choosing the right point-of-use tankless electric hot water heater can significantly improve your comfort and energy efficiency. These devices provide hot water on demand, eliminating the need for a storage tank and reducing energy waste. To find the best fit for your needs, it's important to understand the key specifications and how they relate to your specific requirements.
Flow RateFlow rate, measured in gallons per minute (GPM), indicates how much hot water the heater can produce at a time. This is crucial because it determines whether the heater can meet your hot water demands. For instance, a flow rate of 1-2 GPM is suitable for a single sink, while 3-5 GPM can handle multiple fixtures like a shower and a sink simultaneously. Assess your household's hot water usage to choose a heater with an appropriate flow rate.
Power RatingThe power rating, measured in kilowatts (kW), indicates the heater's capacity to heat water. Higher power ratings mean the heater can heat water more quickly and to higher temperatures. For small applications like a single sink, a lower power rating (3-5 kW) is sufficient. For larger demands, such as multiple fixtures or a shower, you might need a unit with a higher power rating (6-12 kW). Consider your hot water needs and the electrical capacity of your home when selecting the power rating.
Temperature RiseTemperature rise refers to the increase in water temperature that the heater can achieve. This is important because it affects how hot the water will be when it reaches your tap. For example, if the incoming water temperature is 50°F and you need it to be 110°F, the heater must provide a 60°F temperature rise. Different models offer varying temperature rises, so choose one that matches your desired hot water temperature and the typical temperature of your incoming water.
Energy EfficiencyEnergy efficiency measures how effectively the heater converts electrical energy into hot water. Higher efficiency ratings mean lower energy consumption and reduced utility bills. Look for heaters with high energy efficiency ratings, typically expressed as a percentage. An efficiency rating of 90% or higher is considered very good. Consider your long-term energy savings when evaluating this specification.
Installation RequirementsInstallation requirements include the electrical specifications and space needed for the heater. Some units may require a dedicated circuit or specific voltage, which could affect your installation options. Additionally, consider the physical size of the unit and where it will be installed. Ensure you have the necessary electrical infrastructure and space to accommodate the heater. Consulting with a professional electrician can help you understand and meet these requirements.
WarrantyThe warranty provides an indication of the manufacturer's confidence in the product's durability and reliability. Longer warranties offer greater peace of mind and protection against potential issues. Warranties can range from 1 to 10 years or more. Consider how long you plan to use the heater and choose a model with a warranty that aligns with your expectations for product longevity and support.

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