I have natural gas and have a wood fireplace (converted to natural gas) in my basement for the reason of a power outages before I bought my two stoves. I honestly will never use it, and have been tempted to put a wood insert in it..... :lol: I'm pretty hooked on the wood. My natural gas bill runs less than $800.00 per year, and I heat my 30'x30' garage from Oct-Apr, hot water for washing clothes,showering,dishes,ect. To me its financially worth it..... Even if I bought my wood, on the high end it would cost me $600.00 to heat the house all Winter.