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1. Tank capacity: single copper coil: 100LSingle/double/none copper coil: 150L, 200L, 250L, 300L, 400L and 500L2. Inner tank diameter: 410mm (100-200L) 500mm (250/300L) 650mm (400/500L)3. Outer tank diameter: 510mm (100-200L) 600mm (250/300L) 750mm (400/ 500L)4. Material of inner tank: crystal/porcelain enamel5. Thickness of inner tank: 2mm (100-300L) 2.5mm (400/500L)6. Material and thickness of outer tank: colorful steel plate/0.6mm7. Thickness of insulation: 50mm8. Heat-exchange area of upper copper coil: 12mmx14m9. Heat-exchange area of upper copper coil: 12mmx20m (150-400L) 12mmx20m (500L)10. Size of water inlet and outlet: G3/4" (100-300L); G1" (400-500L)11. Electric heaters: 2KW (100-200L); 3KW (250-500L)
