After almost 80 hours of doing product comparisons and testing, the verdict is in: the Stiebel Eltron Tempra 24 Plus Whole House Tankless Electric tops our list of this year’s best models simply because it manages to provide a lot of quality and value in one place. This model’s 5 GPM flow rate and a 24 kW heating capacity make up the core of its quality, while its ability to save its users between 15%-20% per kWH makes up the heart of its functional value. Other award winners include the EcoSmart ECO 27 Electric Tankless Water Heater (Best Quality) and Bosch Tronic 3000 Electric Mini-Tank Water Heater (Best Value).