German filler electroboilers capacity of 20 liters 15 liters capacity. / Hour with automatic maintaining the temperature at 95 ° C with two heating elements capacity of 2000 watts. and 260 watts. Water heater Hogastra HWA-20 is the largest model in the series HWA. You will be able to quickly and accurately prepare about 160 cups of tea as well as heat water for cooking various instant beverages or instant soups.