Randy…If you have turned up the temperature setting on the water heater, and you still are not getting adequate hot water for your needs, is it possible that you have a sizeable leak in the hot water piping ? I of course dont know the construction of your home, but if it is a slab on grade type building and your water lines are beneath the slab, it is possible that you have a leak below the slab. Have you noticed any hot or warm spots on the floor ? An easy way to determine if this is the case, is to shut off the cold water supply to the water heater for a few minutes, and then turn it back on….if you hear a rush of water going into the tank when you turn it back on, thats a good indication that there is a leak below grade. I would be interested in the outcome of your problem. Happy New Year…………….Bud…. Suncoast Plumbing.. Sunny Florida..