Oil.......my husband is going to be picking up a coal burning stove to put in the basement. Coal's the cheapest thing going these days, it aught to help a bit anyway.
kveeti said:Natural gas. 2 years ago we replaced our old furnace with a high-efficiency one, which means the exhaust no longer goes out the chimney but through the new input/output tubes to the side of the house, just seems weird.