... pipe-plate style structure, high heat effect, high hot water produced, anti-insolate, water heater in the copper pipe, reliable quality, free ... to one-square foot per gallon of one-day's hot water use. StructureThe flat panel are simple, efficient design, durable ... Multicolor surface color of the casing.-typhoon and sea-water resistant design.Cover glass: low iron tempered patterned glass, with high ...