10 Best Point Of Use Tankless Electric Hot Water Heaters 2025 in the United States

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.

The Rheem 18kW 240V Tankless Electric Water Heater is designed for those seeking an efficient and space-saving solution for hot water needs. With a maximum flow rate of 4.4 gallons per minute (GPM), it can comfortably meet the demands of a small household or a single application, making it suitable for kitchens, bathrooms, or laundry areas. One of its standout features is the external digital thermostatic control with an LED display that allows for precise temperature adjustments, ensuring that users can achieve the desired hot water temperature with accuracy (+/- 1 degree).

Its energy efficiency is impressive, boasting a 99.8% rating, which means minimal energy waste and potentially lower utility bills. The self-modulation capability is another highlight, as it adjusts the power based on the demand for hot water, further optimizing energy use. Installation is straightforward, with bottom-mounted 3/4 inch NPT connections and a wall-mounted design that conserves space.

However, there are a few considerations to keep in mind. The flow rate of 4.4 GPM may not be sufficient for larger households with simultaneous high demand, such as multiple showers running at the same time. Additionally, while the installation is simple, it may still require some plumbing knowledge or a professional to set up properly. The product's compact dimensions are a plus for small spaces, but this may also mean lesser heat output compared to larger tank systems, which are often better suited for extensive hot water needs.

The EcoSmart ECO 11 Electric Tankless Water Heater is a compact and efficient option for point-of-use applications, such as bathrooms, small sinks, and office breakrooms. With a power rating of 13KW at 240 volts, it can provide hot water on demand, ensuring you never run out. This model has a maximum flow rate of 3.1 gallons per minute, which is sufficient for low-flow applications.

One of its standout features is the patented self-modulating technology that continuously monitors water temperature and adjusts flow rates to maintain efficiency and consistent performance within 1 degree of the selected temperature. The unit is highly energy-efficient, with a 99% thermal energy efficiency rating, meaning it only heats water when needed, saving on energy costs compared to traditional tank heaters that constantly maintain water temperature.

Additionally, the EcoSmart ECO 11 is 90% smaller than traditional tank heaters, with dimensions of 8 x 11.5 x 3.75 inches, making it easy to install on a wall or at the point of use, freeing up valuable space. Not only is it space-saving, but it also features an LED display for easy monitoring. The product comes with a lifetime warranty on electronics, the exchanger, and the element, though it does not cover labor or incidental damages, which could be a drawback for some users. Another consideration is the installation requirement of a 54-amp draw, which may necessitate electrical upgrades in some homes. Despite these potential installation challenges, it indicates general satisfaction with its performance and reliability.