Combi condensade via old cold tank overflow?

[danmanchester]

Evening all,

Just wondering if there is any issue using the overflow from my old S plan system for my new combi install?

Thanks in advance

 

[gas112]

Needs to be plastic not copper joints will need to be sovent welded or mechanical some old overflows are just pushed together with no seal in the joints and will need to terminate in an aproved way