Boiler available in five different sizes ranging from 15 to 40 liters capacity. They match high marine quality standards such as a stainless steel inner tank, a robust polypropylene gray casing and a 6 bar safety valve. Complete with fixing brackets in AISI 304 stainless steel non-magnetic. Insulated with polyurethane foam directly injected CFC-free. Single coil with extended surface and corrugated (heat exchanger) in AISI 316 stainless steel, for a hi- gher yield through the hot water of the e..