I have a new water heater, and some times I get very hot water, mostly though I get luke warm water. I can only assume that the mixer valve is letting cold water past. The Tank is set to 125*. From the attached diagram, does anyone have any thoughts? The mixer valve does not look very fun to remove, and replace.
Sorry that is actually to in-floor heating for the lower living room.
Update: I shut of the valves to the in-floor heating yesterday so this in not a factor. You can see the one valve just before the pump, and the other on the upper line at the far left. In the morning I had a cool shower for the first 5 minutes, then it began to warm to a luke warm temperature.
Last edited by carboncopy; 11-16-2011 at 08:26 AM.