Navien NPE-240A is one of the best electric water heaters on the market, combining an insulated buffer tank with a recirculation pump to ensure that hot water is always available. ComfortFlow is another advantage of the Navien NPE-240A, allowing you to use hot water immediately while washing or cleaning. ComfortFlow reduces the chance of a cold water sandwich effect by up to 75%. This unit also reduces CO2 emissions, which is the equivalent of planting 31 cypress trees. A Rheem electric water heater provides hot water at the point of consumption, which reduces costly temperature losses due to long piping runs. Its small footprint makes it easy to install in a small space and has many additional features to maximize its efficiency. An innovative coating of high temperature porcelain enamel enhances the water tank's corrosion resistance, while a long life anode rod protects the tank from rust and corrosive minerals.