Clover B7A Hot and Cold Water Dispenser With Adjustable Cold Water Thermostat STAINLESS STEEL TANKS: Both the hot and cold water tanks are constructed of hygienic stainless steel which is specifically designed to be contaminant-resistant and protect your health TEMPERATURE ADJUSTMENT: Controlled by an adjustable thermostat, the cold water temperature can be set from around 35.6F-53.6F. The hot water temperature is automatically controlled (non-adjustable) to nearly 185F. ENERGY STAR RATED: This water cooler has earned an Energy Star rating, which means it meets strict energy-efficiency guidelines set by the EPA and U.S. Department of Energy EFFICIENT HEATING AND COOLING: This hot and cold water cooler has an ultra-efficient condenser that's cooled via convection and operates quietly.