A direct vent gas fireplace or insert is the best hearth choice when it comes to protecting the air inside your home that your family and friends will breathe. A direct vent design hearth product is engineered to include a sealed glass front that keeps gases such as carbon monoxide, nitrous oxide and excess moister from entering your home. The glass front of a direct vent model gives you a full, clear view of a beautiful fire. The design uses air from outside your home to fuel the gas fire rather than pulling air from inside.
Direct Vent Schematic