Household energy-efficient electric water heater Vertical Features: ◎ energy-efficient water heater tank insulation wrapped around the insulation layer 1-3 inches thick and efficient CFC-free foam insulation, thermal insulation effect is particularly evident. ◎ jet injection system reduces water sedimentation device. Improve the yield of hot water; and to prevent sedimentation of suspended solids in water scaling, automatic cleaning water heater tank. ◎ molten ceramic shield plate liner patented products. Molten ceramic liner shield plate not only able to withstand the impact of a huge flow of water without loss, not broken, and has no rust, no scaling of the unique advantages. ◎ Magnesium anode rod anti-galvanic corrosion protection devices. Provide anodic protection against corrosion and scaling. Ensure durable tank, greatly extend the life of water heaters. ◎ fully automated control, automatic temperature controller mounted on a hot stove reaction sensitive to automatically adjust water temperature control. Installation and commissioning of the factory has a good automatic over-temperature circuit protection device can safely prevent water furnace overheating. ◎ overheat / overpressure valve in this paragraph are all types of water heaters equipped with special side or top of the temperature and pressure relief valve, making it safer and more reliable operation. ◎ quality and safety drain valve in this paragraph are all types of water heaters made of high quality safety drain valve, which uses "no handle" designed to prevent children or others inadvertently open, use more secure. ◎ insulation nipple in this paragraph are some models of water heaters are factory installed insulation nipple sleeve member. Help extend the life of water heaters, installation easier. ◎ immersion within double Incoloy direct and efficient electric heating element heats the inner design of lncoloy immersion electric heating rods, will directly convert electrical energy into heat the water, saving operating costs. ◎ liner 3 or 6-year limited warranty rugged strength gauge steel materials, through the automatic control equipment for molding, rolling and welding rounded ensure Fused Ceramic ShieldTM (molten ceramic shield plate) water heater tank seams close strong. Each tank is triple-tested to ensure that there is no quality problems. ◎ this paragraph water heaters meet or exceed the American Refrigeration Heating and Air Conditioning Engineers (ASHRAE) Standard 90.1b 1992. ◎ this paragraph water heater uses the following US patents and manufacturing.