Heaters manufactured in aisi 316 stainless steel water heater for embarkation.Operation by feeding selection at 220-240v or by water circulation.Motor cooling, interchangeably.It consists of a high thickness treated steel tank with internal protection.Galvanized, vitrified porcelain and outer insulating cells expanded from cells closed, to keep heat.The base cover of the exchanger and resistance, can be disassembled for the internal inspection of the deposit all ´´natic´´ heater are protected against the natural effects of electrolysis.Through a magnesium anode and are equipped with a ball valve for emptying of unused water.Flanges and stainless steel supports al316 included for vertical or horizontal assembly.230v electrical resistance.1200w with adjustable thermostat.Maximum pressure 8 bars.Resistance voltage:220-110v.3 5bars security valve.Racords diameter:1-2 ´´.25lts.