Hi, I recently purchased a home that has a Martin Wood burning fireplace installed. The informational faceplate states it is a "Martin Model AC 36 Fireplace". The model # is 39014. It also states that it was manufactured in December of 1988. I was looking to obtain the user's manual so that I can properly inspect and clean the fireplace, as it hasn't been used in 10 years. Thank you for your time!