If your home just does not have enough time for a usual water heater or you just feel that it would take up too much space, than hot water dispensers are exactly made for you. They are small miniature electric water heater that can just simply be attached under you sink or wherever you want.

The hot water dispensers can serve only one faucet and can heat water up to nearly boiling temperature and hold it for some time. When comparing to a conventional water heater the difference is that it never becomes pressurized.

The small hot water dispenser is attached to the cold water pipe under the sink which makes the water travel through the body of the stout and then into the tank where it is heated up.  As the water expands when heated it fills the expansion chamber in the upper part of the tank. When the faucet is turned on additional cold water is released to the bottom of the tank, which makes the hot water to displace in the tank and expansion chamber and thus making the heated water move up through the faucet.

So if you just need a small water heater in you kitchen or somewhere else in the house, get a hot water dispenser.