These storage water heaters are particularly conceived for the employment on ships and yachts of medium size. Due to the compact dimensions and the small weight they are suitable in particular for sailing boats. By the use of high-quality materials a long life span and a problem-free enterprise are ensured. 5 different models with a volume of 20 stand - 40 liters to the selection. The assembly can take place both horizontally and perpendicularly. The components coming with sea water into contact (boiler, connections, attachment volumes) are made of stainless high-grade steel AISI 316. The heating up the water can be made alternatively by means of the connection of the cooling circuit of the marine engine or by the inserted 800 W heating cartridge. Over in series integrated thermostats the water temperature upto max. 80 can be stopped °C according to desire.