I believe your stove is the same under the hood as my 49-SHC22, just a styling change and auto ignite. I left mine in corn mode and it seems to crank out the heat. I only run it at level 5 or 6 when temps are below freezing and then drop as needed during the day as temps outside rise. I always leave the fan speed on level 9. If you want to compare the heat output between stoves let me know. Also, what size vent pipe are you using and how long of a run to the end cap?
Controllers are different.