I purchased this home a few months ago and when I first started using the stove, the fans under the stove worked relatively well.... Tonight I turned on the blower and it's making a loud noise, almost like it's vibrating against something. Well, after further investigation, I looked at the fans, that are located underneath the insert and have discovered the one fan doesn't work at all and the other fan has 3 blades broken off of it I don't know the make of the wood stove insert to find a replacement blower for, and the previous owner has not returned any of my calls. How can I find a new blower, which is what I think I need, if I do not know the make of wood stove insert? I am new to this, so please excuse my ignorance, I'm still learning Any help is greatly appreciated