i replied with something considerably stupid and i would have looked like a halfwit, i didn't want this to happen so i tried to delete the reply but didn't know how so i edited to the above.
i said "is it behind the radiator at the bottom" but that would be a stupid place to put the T-stat!!!! there now i look like a halfwit!!!!!
EDIT: turns out i was right, now i look like a know-it-all!!!!!