Replcement boilers- do they have to be on an external wall

[Deleted member 105431]

to the op is there another flat directly above the powermax, I assume there is?

. Could all the flues of he the flats in one line be connected and have a common outlet[/quote]


shared flues are not allowed except "se" and "u" ducts on domestic systems. Each boiler should have it's own flue terminal. Contact the builder and ask for a copy of the plans.

 

[gas4you]

If nobdoy knows where the flues run, then these are obviously not inspectable, so ALL the boilers are now ID and need to be turned off until the fluse can be inspected.