When we built the house 14 years ago we had a heatilator fireplace installed in the first floor living room and a woodstock stove installed on the basement level right below the fireplace. The stove has a separate flue pipe that is to the left side of the alcove below the fireplace. Now I want to move the stove upstairs to the living room. The chimney is not masonary. Could I somehow access the pipe that was installed for the stove instead of trying to retrofit the heatilator fireplace to accept the stove?