I have a USSC 5500M pellet stove. I've had it for about 7 years and have had minimal issues with it. This past season the bearings decided to go out of the room blower motor. I made it through till spring, but I had to take it out several times to lubricate it. I will have to replace it this year before putting the stove back in service. I would like to have one that moves more air then stock. Is there an aftermarket blower that will fit in the case and have a higher CFM rating? Has anyone else attempted this?