Endless Hot Water
One of the frustrations with a tank water heater is that once you use the hot water in the tank, you have to wait an hour or two for the water to reheat. with a tankless water heater you have an endless supply of hot water. The tankless water heater heats the water on demand. This means that you have an infinite supply of hot water. You will never have to worry again about running out of hot water in the middle of your shower.
