1. The material of inner tank: SUS304 2B stainless steel with 1.2mm thickness.

2. The material of outer tank: galvanized plate, 0.4mm thickness

4. Insulation layer: polyurethane foam, 55mm thickness

5. Working pressure: 0.7MPa

6. Assistant heating power: tank's capacity belowe 250L with 1.5KW power, above 250L with 2.5KW power