it literally had a service a week before we removed it from the previous house, so perhaps it needs FIL to come in and have a look see.
The flue is brand new, from the ceiling upwards is twinwall k vent
indeed you are correct....that's 'he with the selective hearing' installed it :)
tbh his father is a central heating engineer/plumber and himself is pretty handy around the house.
should I be calling in the cavelery or is it something that dh can sort out with a bit of tweaking?
Having just installed our rayburn I am finding that it doesnt seem to be reaching temp. its a 400K pressure jet and despite the fact that turning the dial to 7 should mean 200C its more like 110C.
Any advice on this?