Do You Need A Cert. To Convert Vented To Closed System?

[courage best]

I currently have a conventional vented CH system. If I want to convert the flow/return/primaries circuit to a closed/sealed system, do I need to be qualified?

I'm aware that you need a ticket to change the cylinder to unvented, but I will be leaving the cylinder as vented for now.

 

[namsag]

No you dont need to be qualified but not every boiler can be converted to a saealed system .
It must have an overheat safety device fitted either as standard or avialable as a kit from the manufacturers.(which would need a qualified guy to fit it)
Also a read of the manufacturers instructions will tell you if they allow it

 

[courage best]

Its an ancient but completely reliable Concord WRS. Lost the instructions years ago!

Is it suitable for sealed?

 

[petit_pablo]

Its an ancient but completely reliable Concord WRS. Lost the instructions years ago!

Is it suitable for sealed?

Nope