This is a pipe that is made of Aluminum material and is often used for lining a low-efficiency gas furnaces, or flues. These shouldn't be substituted for durable stainless steel relining pipe, as they don't produce enough heat, nor enough moisture.
864 See-Thru Gas Fireplace
Large See-thru gas fireplace features 1,728 square inches of fire viewing area and a realistic "wood like" flame.
This mid-sized gas fireplace features a big heat output and offers the choice of three burners: The award-winning Ember-Fyre burner, the entry level Dancing-Fyre burner, or the contemporary Diamond-Fyre burner.