
Stainless Steel Solar Hot Water Heater with Copper Coil. Instant Continuous Heating: Copper coil heat exchanger enables direct tap water connection for instant, non-stop hot water supply. Food-Grade Stainless Steel Tank: Inner tank made of SUS304-2B ensures clean, drinkable water with a lifespan over 15 years. Superior Insulation Performance: High-density polyurethane foam retains heat for up to 80 hours with integrated foam-forming. Flexible Customization Options: Offers full customization, flexible customization, and customization from samples. Comprehensive Warranty Coverage: 3-year warranty for integrated system exchange and 15-year compensation for vacuum tube quality. Optional Intelligent Control: Supports intelligent controllers, auxiliary tanks, electrical heaters, and magnesium anode bars.