Reply To: Hot water to the upstairs shower.

It sounds like you are saying that BOTH of your showers seem to have cooler hot water to them and the rest of the house seems the same. My guess is that the thermostat on the heater has changed somewhat (as it gets older). You dont notice a difference with your hands in the other faucets (taps) because hands are not as sensative as your body is to SLIGHT temperature changes. Unless it gets worst I wouldnt worry about it.