PVW-B30U Stainless Steel Vacuum Electric Water Dispenser, 3-LiterProduct ReviewP Click on the link for more reviewsP2 way styles for dispenser: Electric and air pump without using electricityPChoices of Energy saving modes: VE mode & Energy Saving ModePVE Mode is when the water boils, heater shuts off automatically and uses Stainless Steel Vacuum Insulation to keep warmPEnergy Saving Mode applies after 2 houes not in use; It reduces approximately 9F from regualr setting temperaturePAuto lock system after dispensing for safetyP