Can Tankless Hot Water Heaters Provide Instantaneous Hot Water?
No. The use of the word “instantaneous” is a misnomer and should be discontinued. A more appropriate phrase is “on-demand.” Tankless water heaters perform on-demand and can deliver hot water within seconds – not instantaneously. The water still has to be heated within the unit (time-to-temperature) and then there is the distance of plumbing runs. The truth: tankless water heaters perform on-demand and deliver hot water within seconds not instantaneously.
