Once I turn on the hot water heater, and then shut it off after about 15 minutes which is all it takes to heat the water, how LONG should the water STAY hot inside the water heater?
The heater has no extra jacket but it's cool to the touch. Assume the temperature outside ambient is about 75 degrees F. (The point is that it's warm at this time of year.)
If I take a shower in the morning after the heater shuts down at night with no water running, the water is too cold for a comfortable shower.
Just curious how LONG the water should STAY hot assuming no water flow, 135 degrees F setting, normal 50 gallon hot water heater, normal 75 degree F ambient temperature?