DirectVent Pro is a unitized, coaxial venting system designed for use with direct vent gas or propane stoves, heaters, and fireplaces.

A vented fireplace is usually installed adjacent to an exterior wall to simplify venting, but it doesn’t have to be. The vent pipes can be routed through the roof, just like any other fireplace.

You should remove obstructions, or debris, from those outdoor vents that connect to your furnace, gas fireplace ... me and check my outside furnace pipe and make sure it’s not clogged.