WHat else is new? No doubt furnaces will go up in price, as had everything else. Even Coal has gone up! I have been burning coal all of my life. When I was a child I picked it...Yes I live in the coal region, and even picked it early in my married life. (I know I sound like an old grandmother with this story, but I am 48-Ancient enough- lol!)
Coal has also dramatically increased, but not at the rate of the other fuels. I remember paying less that 100 per ton...Back in 84, I think I was paying 60 per ton. Now I am paying 185, so if you compare it to the rates of other fuels, it is still a good deal.