Originally Posted By: Vern_in_IL
if the Anode rod has not been checked in 10 years, forget about it, don't bother.
You are supposed to test the pressure relief valve, but if you do they usually start dripping....
I say you got 5 years to think about this if your water pressure is on the low side. Propane water heaters are built better than electric, and you may get better efficiency in a new unit.
The only reason I'm in the camp of replacing the anode rod is that a power venter is a lot more than just a regular 50 gallon hot water heater. You mind as well replace the anode rod, get a drain pan and maybe a WAGS valve, worse case is that you end up with a 50 gallon leak, otherwise it's endless until you notice it. Normally the tank is lined with fiberglass, but it's usually imperfect and the tank eventually starts to rust. Maybe you got a good one and can get a few more years out of it.