BEE 5-star rating for energy-efficient technology Capacity - 10 L High-quality steel inner tank with glass-lined AC (anti-corrosion) coating for long life PUF insulation to minimize heat loss and reduce power consumption 2-year product warranty, 2-year heating element warranty & 7-year inner tank warranty Adjustment knob for convenient temperature setting High-quality pre-painted galvanized iron sheet outer cover & plastic end cover for greater durability