[sevisehda]

The amount of heat produced by your system is equal, well actually less, than the power it draws. The easiest way to figure how many kilowatts your system will consume is to multiply your PS wattage by 0.72.

24(hours per day) X 30(days per month) / 1000(conversion to kilowatt) X Power Supply

Of course if your maxing out your power supply it wont last very long, but in my boox its always better to over estimate when it comes to cost. It will also be less if you don't run your system 24/7