Andrew said:Only problem is i dont wanna run an extra pc. trying to cut down on power usage.
Actually, that's something I have wondered about...how much power/cost does an old computer running 24 hours a day use? Any idea anyone?
Well these days a typical pc power supply is 400W or thereabouts. Given you wont be running a large vid card or anoy other crap. Wont have DVD's spinning i think it would run @ maybe 140W or so. Ive pulled the number out of the air kinda, but is around where i think it would be. So running 24/7 would be
140*24*7*52 = 1223 kWh
paying approximately 14c/kWh = $171
Just something to think about for the system. You may be better with some form of programmable controller which has a memory function so you can download temps and plot the data. I know a lot of the ones ive seen advertised have advertised about the 10VA usage mark. So about 7% of using a pc. If it costs a little more to set up you save it in your first 12 months of power bills anyway.