Install a new 50 gal short water heater with a standard 6 year warranty. This involves draining and removing the old water heater, installing the new one with new : expansion tank strapped to the wall, cold side ball valve, gas valve, gas connection, drain pan and reworking the venting above the unit. Upon completetion, gas and water were both checked for leaks.myself and the customer checked for functionality and everything works great. No issues were found at the time.