Additionally, the water in the pipe from the heater to the faucet will cool down quickly. When there is a new demand for hot water, it can take a few moments for hot water to make it from the heater to the faucet, just as it does with a conventional heater.
Some people do get upset at that delay because they think it is "instant" hot water.
Sent from my SM-T580 using
Winnipesaukee Forum mobile app