And then there is the IDIOT who has been very happy because it is getting into the low 50s during the night. So open the window in the basement computer room, put a fan blowing out the door down the hallway, and run the GPU clocks on up. This morning I happened to notice the rest of the basement (where 3 other crunchers are located) was rather warm. It finally dawned on me that the cold air going down the hall (where the thermostat is located) was turning on the heat !!! DUH!