Hi, I have recently purchased an Arbor pellet stove. The company I purchased the stove from told me I didn't need to have a SS vent pipe going up my existing masonary chimney going up the side of my house. The building inspector is now asking me to get in writing that I don' need the SS vent pipe and that exhausting to the masonary chimney is safe. I have a woodstove using the same chimney for 25 years.. Do any of you have any experience with such an issue?