when i bought my house, there is a fireplace with an insert in the livingroom but when i had the chimney inspected it turns out the mortar is no good. the chimney guy said because of the space inside the chimney there is not enough room to put in a liner but he could put in a pellet stove because they only require a 3 inch pipe. to have the whole thing re-done would cost around 7 grand. so the big question is, to they make a stove that isn't pellet and uses a smaller pipe, such as the 3 inch pipe instead of the 6? anything custom out there? barrel stove?