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On-line advice says residential gas water heaters last about 8 to 12 years. I have lived here for 12 years and my neighbor says my water heater was 5 to 10 years old when I bought the house. So the water heater may be 20 years old. It still works fine but I wonder if I should get it replaced while I have time to find a good plumber rather than waiting for it to fail and have to use the first available plumber? Thanks for any advice, especially from plumbers.

On-line advice says residential gas water heaters last about 8 to 12 years. I have lived here for 12 years and my neighbor says my water heater was 5 to 10 years old when I bought the house. So the water heater may be 20 years old. It still works fine but I wonder if I should get it replaced while I have time to find a good plumber rather than waiting for it to fail and have to use the first available plumber? Thanks for any advice, especially from plumbers.

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[–] • 2 pts

Can't believe nobody has mentioned this. They can last longer if you replace the sacrificial anode rod at the top every 10 years. Also I've heard you should empty the tank yearly with the valve on the side.