Just some info for you lads who install fanned flue boilers, I have just installed a Heatslave 25/32 oil boiler , it had to go back in the original position of the old Cf boiler, but the horizontal flue was within 300mm of an internal corner, had no luck in trying to move it elsewhere, so spoke to my local Worcester rep what could I do, and he came up trumps with, using a plume management kit, it appears that you can reduce the space from a corner to 150 mm for the combustion air, if you use a plume management and the POC are expelled at a distance greater than 300 mm, this saved me a major headache and it was certainly something I did not know about.
hope this will be of some help to others.
hope this will be of some help to others.