You can buy a Rheem 22V50PROFN. Which has an eight year warranty. Add a 4 year warranty upgrade kit (SP20079) which is an extra anode rod that gets put in place of the hot water supply nipple, and some paper work to be sent back to Rheem. This will give you a 12 year warranty, as well as extra protection in your tank. Also, I do not buy anything from the big box stores.