Ive had a new combi boiler put in (worc bosh 30sdi greenstar) and have the wireless controls - I was told to keep these in the living room and the room temp (showing on controls) at the moment is usually around 20 -21 deg. I was told that unless the house temp dropped then the heating wouldnt come on but the last couple of days around the same time the radiators have come on yet the temp on the controls is still saying the same (20 -21 deg). I cant understand why this is happening as its not been particularly cold/cool. Any advice please??........ please bear in mind I am not very technical and at the time the installer was explaining all to me I thought I understood!!! 
