Double walled construction with inner and outer chamber made of stainless steel. The gap in between being filled with glass wool. Condenser and top are also made of stainless steel SS-304 grade argon ARC welded. Supplied with the rubber tubing coil of 5 meters. The raw water is first made to pass around the tubes in the condenser, where it gets heated neatly to the boiling point thus economizing the heating energy. Supplied with cord & plug to work on 220 / 230 volts AC supply. Capacity : 2-10 ltr/hr.