What is the cost of operating a water cooler?
A water cooler uses very little power. When the cooler is in operation it requires no more power than a 60 watt light bulb. The cooler is designed to chill 4.5 litres of water per hour down to a temperature of 50°F. To maximize cooler efficiency the cooler should be placed at least 2 inches away from the wall and away from any heat vents. Also, the back cooling grill should be cleaned and kept free of dust.