I just purchased an efel stove off of an older gentleman i work with. I am having a hard time figuring out the model efel it is. I am leaning towards a montana, but the id tag on the back does not specify. All it has is the clearances for 4 different model stoves. Any help would be appreciated. It has a top feed door with a chute inside that acts as a hopper and also has a side load door. The reason i need the model is so i can install the stove at the correct clearanxes per the id tag on the back.