I can tell you for a fact that corn burns far hotter than wood. The room air coming out of the stove is around 100 degrees hotter. I measured it. Corn has outstanding heat, but can be difficult if the moisture level is too high. And if you live in town like me, you gotta have somewhere to store it. Get yourself the stainless vent pipe kit. Corn is hard on plain steel piping, corrodes it. Also on mine I had to clean the agitator everyday. Also had to use pellets & an additive to get the corn burning. We burned about 1 five gallon bucket a day & 2 buckets a day in Jan & Feb. Make sure you are getting the most up-to-date version of the stove you are buying.
Mom & Dad have a corn stove that just has a burn pot - no agitator. Very nice & far much easier to clean than mine was.
I now have a pellet stove made by USSC. Corn got too high, it is not cost effective for me to buy it anymore. So I got a pellet stove & as long as pellets are around $4 a bag I'm OK. Easy to store & handle. I burn about a bag a day. This stove has an ignitor. All I gotta do is load the hopper, clean the inside & the glass door, turn it on & walk away.
Also ask for the tax deduction form if your stove qualifies.