so it's darn cold in Belgium. according to the weather report, it's 12 °C (53.6 °F) and my electric heating isn't on yet. i'm in a room looking east, it's cloudy, yet my room has pretty nice temperature, solely due to my computer. there's not a single other heating element in my room, yet it seems quite warm, not at all like 12 °C. however, should i be worried that my computer heats my room so much? my room is 5 meters long, 4 wide and 2.5 tall.