... Aluminium alloy plate Accessories Workstation system, Electric heater, E-Parts box, thermostat, Switch, Anode magnesium bar, T/P valve, Relief ... , expansion vessel, check valve, etc. 2) More intelligent system operation, when temperature discrepancy between collector medium and water in ... a continous hot water supply2) Anode magnesium Bar: soften hard water in system so as to protect storage tank and ...