Installing a Lopi insert in our prefab fireplace. The store I bought the stove from was insistant that I use stainless pipe for the flue from the stove to 12 inches above the damper. I would rather use black stove pipe, because A its much less costly B I need to make a small turn in the pipe, before it passes through the damper block off plate.
Are they just trying to sell me something else, or is black pipe safe to use.?