During the course of an inspection, a newer electric “on demand” system was installed. It was noted that at one tub the water would come out at about 120 degrees max, but when two showers were activated the temp would drop to 98 degrees. This means that two people cannot take hot showers at the same time.
According to the manufacture the right system is installed. I cannot find anywhere in the Florida code indicating that a hot water temperature has to be maintained. It says the fixtures have to reach 110 degrees but it does not say simultaneously.
Is there any reference for this? I just find it odd on a $500,000 house two people cannot take a hot shower in two different showers at the same time and there is nothing written to contradict it.