Cooling and heating methods of water dispenser

Most modern units offer a refrigeration function to chill the water, using Vapor compression refrigeration or Thermoelectric cooling.

Disclosed therein is a hot and cold water dispenser, which includes cooling means or heating means for cooling or heating water. The hot and cold water dispenser includes: a feed pipe having a flow path formed therein for allowing a flow of water; and a temperature control pipe disposed inside or outside of the feed pipe along a longitudinal direction of the feed pipe, the temperature control pipe having a space for receiving the cooling means or the heating means therein to cool or heat water flowing through the feed pipe by means of the cooling means or the heating means.