I came home from my Christmas away to no hot water. I called Walton and they sent out a repairman in the next hour. The part was not available and the repairman drove to a few places to find the right part. I needed to wait until the next day, but Dave came out and quickly fixed the problem. You don't know how much you need hot water until you don't have it! Thank you Clyde S. Walton for your expertise.