These conventional calorifiers use a spiral tube to heat the water. The VETUS twin coil calorifiers are supplied with an extra coil so the water can be also heated by the on board heating system!
VETUS marine water heaters or calorifiers, make use of surplus heat from the engine to provide hot fresh water. They are also fitted with an electric heating element for use when the engine is not running. All VETUS calorifiers include sturdy mounting brackets for safe installation and a complete connection set with pressure relief valve, plus a 1.5 kW electric heating element.