Glacial Maximum Stainless Self Cleaning Base Load Water Cooler with Hot & Cold Water Dispenser All stainless steel exterior with chrome-nickel plated trim. A showpiece in any kitchen or office. High end look like professional espresso machines. Self cleans several times a day using reactive oxygen technology. The unstable oxygen rips bacteria apart and keeps the cooler clean from biofilm, and murky off tastes. Glacial Chill technology uses a ring of ice to keep water at a steady temperature just above freezing, making a refreshingly chilly glass of water. Produces 1.6 gallons of icy cold water per hour. HotBoost technology injects preheated water into the hot tank, maintaining a very high average temperature. Produces 1.4 gallons of piping hot water per hour. Professional Grade compressor technology turns on about 30 times less than the average commercial grade cooler; which often starts failing after a year or two of use.