Are you guys pricing in the cost of the air conditioning required to cool the extra amount of heat your rigs are cotributing to your living space? Is there a rule of thumb to price this into one's calculations in wattage?
What airco? Just put the machines spread out over a few rooms and use them to heat the house... That's how I do it here... Not so much fun in July (as it was extremely hot here) but August was a pretty cool month and in September we'll have no need to swich on the heating system