Tankless hot water heaters eliminate the need for energy inefficient water tanks.
Instead of heating a predetermined amount of water until it is used, tankless water heaters heat water on demand, making them more efficient while eliminating the chance you will run out of water.
Instead of heating and storing hot water in a tank for future use, a tankless water heater produces water on demand.
When hot water is needed, a tankless heater uses an electric element or gas element to heat the water quickly.
Large residential tankless heaters produce 2-5 gallons of hot water per minute.