We have the heating on all the time and have fitted a thermostat/timer from Drayton. We set 4 temps depending on the day - so low at night but will come on if temp outside really drops, then higher just before we get up, 18 during day and 20 in evening. Time zones are variable over 7 days so we set tikmes later at weekend for lie in! If you want you can override switch to give heat boost if you come home early. Just exchange for normal room thermostat, set temps and times turn heating on and forget.