1) Capacity: 100, 150, 200, 250, 300L
2) Water tank inner diameter: 400, 400, 520, 520, 520mm
3) Water tank outer diameter: 480, 480, 610, 610, 610mm
4) Thickness of inner tank: 2, 2, 3, 3, 3mm
5) Thickness of insulating layer: 40, 40, 45, 45, 45mm
6) Material of insulating layer: polyurethane
7) Size of water pipe: G1/2''
8) Power of auxiliary heating: 1500W
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