Up near the Canadian border in Fort Kent, Maine, my father and brother are up against the wall with the price of heating oil. Their solution was to each order a multi-fuel outdoor wood boiler that is designed for pellets, but which can burn grains. They know someone who used a unit last year and tested all sorts stuff in it.... sorghum, barley, oats, even some cherry pits that were given to him.
They are both potato farmers and grow oats as a rotation crop. So this year, they are going to heat with oats. That's the crazy part.... they are better off burning food to heat their homes.
Here's the details for those who care: Rough rule of thumb is that 20 pounds of dry (<15% moisture) biomass has the BTUs of one gallon of oil. I know, wood is better, but I think this ROT is good enough and doesn't require a calculator. A bushel of oats is 32 pounds, so about 1.5 gallons of oil worth of heat. This spring they got their best price EVER for oats at $2.80/bu. In oil terms, that equates to $4.20/gallon, better than the current price on oil. A more typical price on oats has been half as much, making oats equivalent to $2.10/gallon. So, they are better off burning their oats than selling them and buying oil.
They are looking into the possibility of growing a perennial grain on low-grade land solely for fuel. This would cut costs even more. And, should grain be unavailable for some reason, they can always get pellets.
Just strikes me that this country is experiencing madness right now. Energy costs are such that we are willing to burn food to heat our homes and run our cars. And, there are many people, including most of our politicians, who think that the solution to tight supplies and high prices for oil IS NOT to drill for more oil!