CellarPro’s Water Cooled cooling units are suitable forboth commercial and residential wine cellars. Water Cooled systems are perfect for situations where air cooling of the condenser is not possible. The condenser requires a continuous flow of water in order to cool the refridgerant. Performance testing shows that this unit maintains optimal cellar temperature and humidity conditions in extreme conditions up to 110°F more effectively than similar units from competing brands. Water Cooled units also are significantly quieter than comparable units from other brands.