Solar water heater 1). Thickness of bracket: 1.5mm 2). Heat-pipe vacuum tube: 47 mm x 1.5m 3). Inner tank: sus304-2b food grade stainless steel 4). Outer tank: steel (spray-paint and looks like china paint) 5). Capacity: 98/110/130/150/180/210/240/300/300l 6). Insulating layer thickness: 55 - 60mm 7). Inner tank thickness of: 0.4 - 0.5mm 8). Tank diameter: 460mm 9). Pressure: 0pa 10). Heat preservation: 72hrs 11). Hail resistance: 25mm.
