The inner chamber, steam jacket, outer chamber and boiler are made of heavy gauge stainless steel with leak proof argon arc welding. Lid is made of thick machined mild steel plate lined with stainless steel from inside. The space between the outer chamber and steam jacket is filled with glass wool to minimize thermal losses. Hydraulically tested to withstand 2.5 times the working pressure. Steam boiler is fitted with water level indicator, automatic pressure control device. Available Capacities 88ltrs., 162ltrs., 165ltrs., 221ltrs.