Any wood burning fireplace or wood stove, including multi-fuel appliances, will require a 6-inch diameter stainless stove pipe and must be triple wall if it penetrates combustible surfaces or is enclosed in a chase. Your local building department will have specific requirements (code) for such an installation. You should check local code and obtain required permits prior to making a decision and designing the ventilation system.
Solid fuel stoves and fireplaces must have the chimney rise above the roof level to prevent down-drafts and prevent smoke from entering the house. Assuming you will buy a new fireplace or stove, the company selling the appliance usually is aware of code requirements and can help design the flue. If not, then I would suggest looking at a vendor with that expertise to guide you.
