SunRocket Solar Kettle Using the latest in solar thermal technology, the SunRocket uses an evacuated tube, boosted by reflective panels to heat and boil water. When opened it can heat water in as little as 30 minutes (weather dependent) and then closes to act like a thermos, keeping water hot for hours. The SunRocket is perfect for home energy saving, camping, picnics, sports events, fishing, boating or disaster preparation. The SunRocket is an essential part of any emergency preparation or first aid pack. It can melt snow, pasturise stream water or make sterile water for medical use through heat treatment. The SunRocket is scratch and weather resistant, compact and lightweight. The SunRocket is made from quality materials under ethical and environmentally sensitive manufacturing processes. Great gift idea for those hard to buy for! Specifications: Dimensions: 45x11x11cm (17.7x4.3x4.3 inches) Volume: 500ml (17oz) Weight: 1kg (2.2lbs) Materials: Evacuated vacuum glass tube made from Vycor glass (95% silica, high temperature and thermal shock resistant) and copper / aluminium absorption. Reflective aluminium panels, high quality scratch and weather resistant plastics, pressure release valve.