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 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.