a pound of cornstalks would give you a little more btu than a pund of wood (that is corn stalks dried down to 10 percent moisture) this info is found on the net with a quick search. you could bale them inot the old fashioned small square bales (3 feet by about 14 or 16 inches square)_ i seem to remember straw being around 20 pounds a bale? if corn stalks were the same, what you think? about 2 or ten bales a day to heat an average home?? (just guessing) also you will need a good blower as i would think they would almost smother themselves out (like a leaf fire in the fall)
i did see a vidio on you tube of a guy out west that used a rail road car (one half water storage and the other half fire box) said he had a big blower on it and the whole end of the car opened up and he slid 2 or 3 huge round bales in per day. but i think them western provinces have a lot of straw
just some ransom thoughts i put up for "food for thought"
Where do you find bales that lite? Anywhere from 50-110 lbs here, but most round bale now.