Supergreen IR260 POU 25amps 6.0kW 220v Quartz Coilless Technology Infrared Electric Tankless Water Heater Temperature Rise (F) @0.5 GPM 61 degrees (F). Multiple redundant infrared quartz heating elements No Metallic. No Corrosion. No Calcium Deposits. Maintenance Free. Superior Heating Efficiency. Reduce Energy Cost up to 65% compare to any current Electric Tankless Water Heater 220v in Market Uses lower amperage, maintains higher water flow capacity, integrated into various application. 20 Amp (4 redundant Far-Infrared Heating elements). Longevity (more than ten years).