Those who are natives of the United States might find the concept of using ones natural gas supply lines to heat water without storing it in tanks as a futile attempt and a polluting one.

However, if one considers the amount of energy used in the process, tankless water heaters are more efficient than their counterparts because they only heat water that is used and not the entire water stored in a tank.

The best tankless water heater models require a constant supply of natural gas which is used only when one turns the hot water tap on, either in the shower or in the kitchen. Japan is one of the largest users of these systems and they can be easily set up in ones garage without much effort.

Furthermore, one can complement their existing hot water and heater systems with a tankless water heater to ensure that everyone gets hot water when there are too many family members around. This is because tankless systems never run out of a supply of hot water.