Voltage phase:220V-240V 50HZ/60HZ;Power Rating:3.5kW ~5.5kW;WorKing Pressure:0MPa-0.6MPa/0Psi-87Psi;Heating element:Red Copper or Stainless steel heating element;Feature:Water heater with pump;Temperature display:LED display;Temperature Range:25℃ - 55℃