Important FeaturesLong-lasting Inner Tank0.5mm SUS304-2B food-grade stainless steel with glass lining for sanitary water storage and extended lifeEffective InsulationWater remains hot for hours thanks to 55mm thick polyurethane foaming that reduces heat loss.Robust ConstructionStainless steel reflector and tank support for enduring performanceExcellent Heat Absorption with Copper-Coated High-Quality Vacuum TubesFree Add-ons ContainsFor usage in overcast conditions, it includes an electric heating rod and air vent support.VentilationTwo air valves to better regulate pressureGuaranteeFive-year product guarantee
