When buying a water dispenser, consider how much space you would like to set aside on your countertop for it. For smaller homes, new and trendy tankless options take up significantly less space. In lieu of tanks, they have cooling and heating pipes that provide instant hot and cold water. This does mean that they will need direct piping to a water supply. Tank-less dispensers have less chance of contamination since there isn't any stagnant body of water for bacteria to grow. Detailed benefits of having a tank vs having a tankless water purifier are as below. Space Tank: By having a tank inside, your water dispenser would be required to store a minimum amount of water, taking up more space and being bulkier and heavier. Tankless: Without a tank, you’ll be able to enjoy having a slim and modern-looking design that is light and easy to move should you want to do any cleaning. Electric Saving Tank: For water dispensers with tanks, heating would be required around the clock to ensure that the hot water tank is constantly being kept warm/hot even when it’s not in use. This will of course increase electricity cost since it has to be kept running 24/7. Tankless: For water dispensers without tanks, instant heating is done and would only use electricity when you require hot water to be dispensed, saving you lots on electricity bills. Hygiene Tank: By having a tank inside, it is a place which would store up bacteria and algae. This would require for it to be sterilised and cleaned at least once every few months to prevent any bacteria buildup that would make it unhygienic. Tankless: Without a tank, there isn’t place for bacteria to build up and would reduce the risk of bacteria or algae buildup. Keeping it cleaner and more hygienic to be used.