The Baxi 401 back boiler builder's opening does not comply with regulations.
It needs a sealing plate fixed around the (copex? crinkly metal) flue pipe - can't find these online, any help with a piccy or a price.
It needs gaps round the water/gas pipes cemented - do the pipes need sleeving before cementing and if so with what.
Do the pipes inside the opening need taped and if so with what.
I don't want the Gas Safe Registered Engineer, who sadly doesn't do the work himself, to come back and fail anything that's been done by a builder.
It will also help get a proper quote if I understand what's to be done.
It needs a sealing plate fixed around the (copex? crinkly metal) flue pipe - can't find these online, any help with a piccy or a price.
It needs gaps round the water/gas pipes cemented - do the pipes need sleeving before cementing and if so with what.
Do the pipes inside the opening need taped and if so with what.
I don't want the Gas Safe Registered Engineer, who sadly doesn't do the work himself, to come back and fail anything that's been done by a builder.
It will also help get a proper quote if I understand what's to be done.