I came into possession of a never installed or used Heatilator fireplace, model BF36, with a manufacture date of 1983. This unit is brand new in original packaging and has been in storage all this time. I would like to install this unit in an addition, however the original chimney that would have come with the unit is no where to be found. My local fireplace dealer says I'm out of luck because Heatilator changed the chimneys years ago, but there has to be a way....surely someone has a chimney stored somewhere looking for a home? Does someone make an adapter? If not, thoughts, suggestions?? Thank you.