Hi i had British gas out doing the 1st service on my boiler for homecare, and the engineer said that new legislation stated that the pressure relief pipe could not be evacuated out the wall to the outside as it may burn a passer bye !!! so can anyone confirm where it is supposed to be housed ? also i was checking that the needle valves on the TVR's werent sticking so removed the regulator cover for temp control only to find they wont go back on, there is a little metal lug inside the regulator which stops it snapping back on to the brass totthed valve, the regulators are Danfloss, thanks in advance to all who reply.