The Rheem ProTerra Hybrid Electric Heat Pump Water Heater is the smartest and most efficient water heater on the market. Heat pump technology makes it 4X THE EFFICIENCY of a conventional electric water heater. It's so efficient, its energy savings can pay for itself. This 65Gal model has an estimated energy cost savings of up to $5,750 over 10-years. Plus, it's energy rebate eligible. As a super high-efficiency model, it's Energy Star certified, qualifying for federal tax credits up to $2000 and is eligible for local or utility rebates. It's smart: with its built-in Wi-Fi and the EcoNet app, you can check hot water availability, track energy usage and control modes such as efficiency or performance modes. As Performance Platinum, it comes with a 10-year warranty and a 1-year in-home labor warranty.