human
Is it safe to take a shower with the water heater turned off?
assistant
It depends on your water heater. If you have a tank-type water heater, it is not recommended to take a shower without turning the water heater on first. Tank type heaters need to be preheated before they can produce hot water. If you have an instant hot water system, such as a gas or electric boiler, then it is safe to take a shower without heating the water. However, if you are unsure about your water heater, it is best to check with a professional plumber before taking a shower.