Before you read this, it might help to know alittle about these furnaces. There a computer controlled electric mass furnace. It weighs about 5000 pounds, is full of ceramic bricks and coils. They way it works, is there is a outside thermometer that sensed outside temp, and tells the computer to charge according to the outside temp. The bricks get hot, air rushes through them, and heat enters the living space. The idea is that it charges enough off peak to heat the house when its on peak metering. this is a forced air system. If this unit pulls full power, 7 hours a day, 7 days a week, at .04/KwH, thats 10 bucks a day. I cant image that it actually charges full blast, i think thats the point of the computer. I made a major mistake last winter that i didnt catch untill feburary. I didnt have the clock set right and it was charging on the on peak 12 hour period, i had severl $450/month power bills. I cant do it this winter. I am trying to tweak my furnace to make it allitle more efficient this winter. So i have a few questions. 1) i am on off peak metering. Just because its cheap to charge, i chose not to use the full off peak time period. Out of the 12 hours avalible, i am choosing to heat 7 per day. 7 days a week. Time will tell if thats enough. 2) i set the minumum charge for outside temp to be 40* outside. factory is 50* is that bad? 3)i set the full peak charge for out side temp of -10* factory is 10* , am i messin with things i shouldnt be? 4) does this unit, when it is charging, use full power to charge during the off peak time that i have programed? my unit will pull 26Kw per day if thats the case. That seems extreme. 5) I programed the wall thermostat to call for heat if needed at 5:00 and warm the house to 68* i told it to hold it at 60* after nine pm. Does this make any sense? some one is always home and thats our wake up and bed times. Is it worth messin with the programable thermostat? 6) if im using a woodstove most the day, and the thermostat doesnt call for heat, will the unit charge anyway? I feel like when i dont use the furnace, i waste the heat stored in it. The unit stays warm, but the basement sucks all that radient heat out. My house is a 1800 sq/ft two story house, the 1200 on the main floor and 600 in the upstairs. I know thats alot of questions, i apreciate any help that i can get. Here is a link to what i have, http://www.steffes.com/offpeak/comfortplus/cen_overview.aspx I have the model 4130 So what do you guys think?