... combined with gas or electric heater.6.Max. Pressure: 12bar; Operating Pressure: 6 bar.7.It can be used for ... preservation is equipped with standard electric water heater setting,automatic temperature control exchanger, and increased anode magnesium bars sticking toprevent ... Circulation pump, expansion tank 5L-8L, manometer,flow-meter, pressure relief valve, Copper fittings etc. 8) With heat pipe: ...