Reggie_Perrin update. Had it going every night and some mornings, key is insulation, Loads of it. We had the walls floor and ceiling insulated to fuck about a month ago. we have used exactly 1 m3 in just over a month expect that to increase as we have it going during the day as the temp gets below freezing but so far so good. Ordered another 2 m3 just to be safe.
