Tips for replacing hot water heater anode?

[mikester]

I think its time to replace my anode. Past experience is it's a son-of-a-gun to break the anode loose using only a breaker bar. Does anyone have any tips to share and advice on using an impact gun?

 

[crreed67]

Just changed one in my water heater. Just dropped the impact on it and pulled the trigger. Came right out no problem. 1/2" impact.

 

[Tinhack]

Turn off water. Turn off electric. Drain the tank. The rest is just mechanical. While you're at it, replace the anode too. It's probably wasted.

Edit: Ops. I was thinking you were changing a heater.

 

[2manyrocks]

The standard rust breaking sequence for mechanical fasteners on vehicles seems to start with light taps alternating L and R to break the corrosion without breaking the fastener. Water heater tanks don't have thick walls so proceed carefully.

 

[SARG]

I'll mention I bought a Milwaukee 2967-20 1/2" impact specifically to change out the factory installed anode on our heater. Our anode broke free with no issues.The Milwaukee impact has an unusual feature that once the bolt ( or anode ) is loose it immediately slows to a moderate speed ( much less vibration).
I do not regret the expense at all because the impact is superior to my several electric & air impacts. Perfect for rotating tires.

More info = We service our electric heater every six months ( replacing the elements and vacuuming out the sediment ) & our prior anode lasted three years.

 

[ponytug]

I think its time to replace my anode. Past experience is it's a son-of-a-gun to break the anode loose using only a breaker bar. Does anyone have any tips to share and advice on using an impact gun?

Fire up your favorite impact gun and go for it. It is a much better method than a breaker bar. Most water heater manuals tell owners to check every six months, and I'm sure that very few of us ever do. I have often wondered whether it was to keep the threads clean by being chased several times a year.

I switched to electronic anodes fifteen or so year ago, and I highly recommend them. Once and done.
Corro-Tec electronic anode Amazon

All the best,

Peter

 

[quicksandfarmer]

Leave the tank full of water. It's good to have the weight to turn against.

 

[2manyrocks]

The amount of corrosion also will vary depending on what is in your local water supply.