Low cost heat using environmentally friendly shelled corn, wheat
Something over ten years ago here in Ontario, Canada, near the Great Lakes, some corn-fired heaters were brought in from the States.
My friend sold the original one, later a different brand (that didn't work well) and said that he could build a better one, which he began doing over ten years ago.
They are very safe, as firing grain requires forced draft, so they do not require a chimney but can be vented through any exterior wall - combustion air incoming through 6" stove pipe, exhaust through 3" pipe inside it.
It's hard to believe that a small 5" firepot, with a few kernels dropping in at a time, can produce about 60,000 BTU/hr., to heat about 2,000 sq. ft. home, with good insulation and circulation. Continuous burning precludes temperature variations when most furnaces cycle.
Burning slightly over one bushel per day means that the heater is economical - multiply the 150 - 200 bushels of annual consumption in this cold area by the price per bushel in your area and compare it with your current heating bill.
Forced draft also produces almost complete combustion - so there's minimal product of combustion. What is produced is environmentally benign - meets environmental requirements easily. No toxic stuff here.
Some say that it provides heat at lower cost than any except wood - that you cut and haul yourself.
It takes millions of years to produce petroleum - we grow a new crop of wheat and corn every year.
Further - the price of a heating unit is only the down payment - the major cost comes from feeding the darn thing through (one hopes) many years of life.
Why would one force one's self to buy fuel from one of the dozen or so members of the international petro cartel, who have no interest in providing low cost fuel?
When one can buy from any of half a million or so farmers.
There's a half dozen or so members of the international grain cartel that runs world grain: all privately owned, so they make few reports of their business. But they ensure that the price of your fuel continues to be low.
Good wishes to you as you plan how to meet your heating requirements,