Hot Water Cylinder Lifespan

[jonm01]

Wondering what is the general lifespan of an open vented conventional hot water cylinder?

 

[oldbuffer]

If a decent copper one should be 50+ years.

 

[Exedon]

Depends on quality of the water where I live and mostly work copper cylinders without a anode fitted 10 years if your lucky.
Been using stainless cylinders for some time

 

[DetlefSchmitz]

Also seems to depend if it has thermostat pockets. They seem to go through in 10 years.

 

[jurassic sparkk]

The cylinder will last forever, but what's inside might not. Depends on the water to be honest.

 

[Notch7]

Also seems to depend if it has thermostat pockets. They seem to go through in 10 years.

thats worrying, my new cylinder has one of those and Im not even using it

 

[DetlefSchmitz]

my new cylinder has one of those

I have just had my second tank go that way. I have made a temporary fix and plan to braze a plate over the pocket and use external contact to operate the thermistor. Checking the internet I found that this was a common issue.

 

[jonm01]

Thanks for the replies. It's probably around 50yrs old, copper, no thermostat pockets (probably weren't used then!) Was originally gravity feed, converted to fully pumped around 20yrs ago.

 

[seco services]

mines been in since mid 80s