Features: - Innovative PTC ceramic chips for greater efficiency - Uses 25% less energy than resistive elements - Saves an average family 1000 units of electricity/year. - Marine-grade (316) stainless-steel casing for hard water - XTEND element's lower watt-density reduces the speed of scale build-up, - maintaining efficiency over time. - Can be serviced to remove limescale for optimal performance over time. - Simple installation - Dry-burn protection - XTEND element will not fail if your geyser empties
