10 Best Electric Water Heaters 2026 in the United States

The Rheem RTEX-24 electric tankless water heater is a strong candidate for those seeking an efficient and space-saving solution for continuous hot water. With a maximum flow rate of up to 5.9 gallons per minute (GPM), it’s well-suited for smaller households or apartments where immediate hot water is a necessity. Its self-modulating power control ensures that the energy consumption aligns with your hot water usage, contributing to its impressive energy efficiency rating of 99.8%. This makes it a cost-effective choice for anyone looking to lower their utility bills while still enjoying ample hot water on demand.

The Rheem 18kW Tankless Electric Water Heater is a solid choice for those looking for an efficient and space-saving solution to hot water needs. Its compact size (14.5"W x 18.25"H) makes it ideal for homes with limited space, and the wall-mount design allows for easy installation. With a maximum flow rate of 4.4 gallons per minute, it can adequately serve smaller households or apartments, meeting the demands for showers and other hot water needs simultaneously.

The Rinnai REHP80 is a strong choice for larger households needing a reliable supply of hot water. With an 80-gallon capacity and a high first hour rating of 91 gallons, it can comfortably meet the demands of 5 or more people. Its energy efficiency stands out thanks to the heat pump technology and an impressive Uniform Energy Factor (UEF) of 4.00, which means it uses much less electricity compared to traditional electric water heaters. This model is Energy Star certified, helping reduce energy bills while being environmentally friendly. It also has a demand-response feature that can adjust usage during peak electricity times, potentially saving you money.