It starts at the fireplace and zigzags through the walls up down over or under ending at a termination point on an external wall.
How to add a fireplace to an interior wall.
When the fireplace is operating heated air travels through the venting system via power vents which are powerful sleek fan powered accessories that push air through the twists and turns of the venting.
In two story houses choices for placing the fireplace might be more limited but often you can find the 12 to 14 inch space the chimney requires by enclosing a corner of a room or a spare closet.
Wind effects fireplaces and chimneys that are located on perimeter walls or outside perimeter walls in chases are more vulnerable to the adverse effects of wind because their chimneys tend to be low.
This type of fireplace can be installed anywhere a chimney can be installed which allows the homeowner to consider installation along an interior wall.