I want to replace my oil pipe which goes about 2m under the kitchen floor before going out the house. It is unprotected copper and since my cold water pipe burst under the floor recently (also unprotected copper) I thought I would replace the oil line before it too corrodes away.
My OFTEC engineer will do the plumbing part and recomission the boiler but he wants me to do the civil engineering part. My problem is that he has suggested that "ideally" the pipe should be 400mm below floor level which would mean cutting into our foundation slab. I think the old pipe is probably in the screed - can I put plastic-sheather copper (as suggested by our engineer) at that depth? (about 50-75mm) Or if not directly, in either plastic or metal conduit? I have found references on the web to OFTEC publications that should contain the answer but these seem to be hidden from non-OFTEC people. Can anyone direct me to a specification that I can access? (Or just give an opinion?)
Thanks!
My OFTEC engineer will do the plumbing part and recomission the boiler but he wants me to do the civil engineering part. My problem is that he has suggested that "ideally" the pipe should be 400mm below floor level which would mean cutting into our foundation slab. I think the old pipe is probably in the screed - can I put plastic-sheather copper (as suggested by our engineer) at that depth? (about 50-75mm) Or if not directly, in either plastic or metal conduit? I have found references on the web to OFTEC publications that should contain the answer but these seem to be hidden from non-OFTEC people. Can anyone direct me to a specification that I can access? (Or just give an opinion?)
Thanks!