[graywarrant]

We have a 2 year old, 80 gallon gas water heater. Problem is that the second person taking a shower ends up with luke warm water. I have checked the pipes and they are installed correctly, the temp is set to "C" (which is one notch below "Very Hot") and I have the pipes and tank insulated. I have also checked the pressure relief valve for any leaks. It appears to cycle as a normal heater should, but just can't keep up with the demand, which in our case is very small.