Just bought my first ever wood stove and it is an earth stove, i have no idea what model it is just know its kinda old, i think it is supposed to have some kind of damper in is to go above the flame thought but i'm not sure, also I'm unsure what the tubes are that are in the back of the stove, what are they used for? they run upward is this where the damper is supposed to attach? I've attached some photos of the whole stove and one of the inside that shows the tubes i'm speaking of, any help would be greatly appreciated!