Hi Guys, Last weekend I fitted all of my rads (except the one in the hall) with TRVs. I now want to fit a room stat in the hall to finish the job. The hall is long and narrow (3.5 ft by 30 ft) as can be seen in the rough plan. Where do you think would be the best position for the room stat? I would like to use position 'C' - it is the easiest place for wiring as the CH timer is inside the hotpress. Some measurements: X to A = 20 ft X to B = 15 ft X to C = 8 ft Any comments will be much appreciated! Rgds, Bothy ps Drawing is not to scale, it is longer and narrower than it looks.