10 Best Electric Water Heaters 2025 in the United States

The Stiebel Eltron Tempra 24 Plus is a tankless electric water heater designed to provide on-demand hot water without the drawbacks of traditional storage heaters. One of its standout features is the Advanced Flow Control technology, which maintains a steady water temperature, ensuring that showers or hot water tasks can be completed without interruption. This makes it highly suitable for households where multiple hot water needs are common.

In terms of size, its compact design allows for easy installation in various spaces, making it a great choice for homes with limited installation areas. The unit's energy efficiency is another strong point; it uses auto-modulation to save energy and even includes a savings monitor to track energy costs, appealing to environmentally-conscious users and those looking to reduce utility bills.

The Tempra 24 Plus also offers user-friendly operation with digital temperature controls and presets, making it easy for anyone to set their desired hot water temperature. With a decent warranty of 7 years for leaks and 3 years for parts, customers can expect reliable long-term performance. There are some considerations to keep in mind. The heater requires a minimum recommended electric service of 150 amps, which may necessitate electrical upgrades in older homes. Additionally, while it can provide hot water continuously, its maximum temperature limit of 140°F might not be sufficient for all users, especially in areas with colder climates or higher hot water demands. The Stiebel Eltron Tempra 24 Plus is an excellent choice for those seeking an efficient, space-saving solution for hot water but may require additional considerations for installation and service requirements.

The BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon offers a compact and convenient solution for immediate hot water needs under your sink. With a capacity of 2.5 gallons, it is suitable for supplying hot water to a single or two sinks simultaneously, making it perfect for small households or point-of-use applications. The product's thermal efficiency stands impressively high at 98%, ensuring minimal energy loss and better performance.

The fast recovery rate eliminates long waits, providing on-demand hot water promptly. Measuring at 13.75 inches in width and height, and 10.75 inches in depth, its compact size allows for flexible installation on the shelf, wall, or floor, making it adaptable to different spaces. Installation is straightforward with a 36-37 inch cord that plugs into a standard 120-volt outlet, further aiding its versatility.

The water heater is made with premium glass-lined material, promising durability and a longer service life. On the downside, with only a 2.5-gallon capacity, it might not be suitable for larger households or high-demand applications. The maximum temperature is capped at 140 degrees Fahrenheit, which may not be sufficient for some users with specific hot water needs. It comes with a 6-year warranty on the unit and a 2-year warranty on parts, which is decent but might not offer the most extended coverage available in the market.