Innumeracy on the Factor

I'm watching Bill O'Reilly on the Factor last night.  He has some blonde Hollywood woman on who is selling "Alternate Energy".  O'Reilly allows that he has a house on Long Island that needs to be heated.  The Alternate Energy Blonde then launched into a long spiel about how to heat with alcohol.  She is sincere, makes you want to run out and pour a fifth of Old Crow into the furnace. 
  But,  O'Reilly never asks her how much alcohol costs.  Furnace oil costs me $4 a gallon.  Whiskey costs  me $20 a gallon at the State Store.  Granted industrial alcohol for fuel is probably less, but is it cheaper than furnace oil? 
  Alternate energy is like alternate medicine.  Quackery.