Currently have a floor to ceiling brick wall with a wood burning stove that connects to a round flue tile about 32" from the floor and then has a standard cinder block with tile liner up to the roof. Want to get rid of the stove and install a direct vent freestanding or wall mounted gas fireplace. Can I use the existing flue and install the coaxial type vent pipes required by the direct vent fireplace? Don't want to use a gas stove and can't use an insert. I want the finished product to look like a real fireplace.
Spoke with a fireplace pro over the weekend who told me for direct vent units the flue opening should be about 36 inches high to allow about 22" of vertical rise before entering the first right angle into the flue. Will use flexible coaxial pipe for venting all the way to the roof. Prefer this method rather than breaking through the outside brick chimney.