why can’t you get hot water from a faucet when the freshwater supply is turned off, even though there’s a water heater full of water being heated and at the ready?

Question

why can’t you get hot water from a faucet when the freshwater supply is turned off, even though there’s a water heater full of water being heated and at the ready?

In: 1

Answer 1

It’s a safety device installed to prevent fires, if no water is incoming the device won’t let water leave. If all the water were drained out of the tank the flame still on underneath would damage the tank and could spread.