I have a weird problem with my water heater. I have a house with two bathroom. The problem is that in one of the bathroom we don't receive enough hot water. Usually after 2 minutes of taking a shower the water starts to cool off very soon. We can still taking a shower but you can feel the difference. The first time I was thinking that the problem was the water heater but I flushed it and checked the elements and everything looks fine. One day I was asking myself why my son didn't complaint about his bathroom. So I went ahead and took one long shower in his bathroom. After 10 minutes of shower the water still very hot. The house has a concrete foundation, so I cannot check if we have a problem with the pipe line. I have not idea how to figure out the problem. I will appreciate any comments about it. Thanks very much. Happy Christmas.