I installed a Brunco 150 woodburning furnace and a 18' Metalbestos stack early last fall. What a difference in the electric bill. I heat about 2,600 sq. feet between my basement and main floor. I heat solely with electricity in the past and our average monthly bill used to be around $325 per month, with the woodburner, the electric bill has been a steady $120 each month this winter. I got the wood burner for free, it was my dad's and he got free gas on his farm, the chimney cost me $1,600, so I figure the woodburner will have payed for the chimney in another year. What does your electric run in your part of the country?