Hi all, just really after some thoughts regarding a planned boiler installation my engineer is doing. I trust the guy as he has done great work for me in the past but this one I'm unsure about. So, Currently I have a massive old Vaillant VC182EH GB and it's sat quite low on the wall. The plan is to fit the new one a bit further up so that access underneath is better and an Adey can be fitted. Now, moving it up presents an interesting problem as where the boiler is fitted is actually a small extension to the back of the property. This means that you cannot move the flue up and neither can you put it through the roof as it would be too close to the building and below the bathroom window. My engineer feels that we can place the flue such that it contains two 90 degrees bends, going over an existing cupboard and out the original wall. It would exit just above an angle and near to the bathroom soil pipe. There would be roughly 200mm from each part of the pipe. I personally am not sure this would meet with the regs but he seems to think it's okay. Thoughts???