The gas fireplace direct vent does not require a chimney but it does use vents. This vent can be horizontally out a side wall or vertically to the roof. The gas fireplace that is direct vent has a completely enclosed fireplace chamber that is very efficient.

 This works by drawing fresh air from the outside for combustion that heats and then expels the by products to the outside as well. The front doors are made from a porous glass that allows radiant heat to pass into the room. 

The venting system of a gas fireplace direct vent is a double walled pipe or, think of it as a pipe in a pipe. The inter pipe is the one that carries the bad air out. The outer pipe will bring in good air. This is a system that works in two ways. As the air is brought in, it is also warmed by the hot central venting pipe taking by products out. The gas fireplace direct vent will heat a room without taking the oxygen out of the room or even from the heated air it has heated. This will keep the room free from any fumes and combustible material like the ash or embers of a wood burning fire. 

A direct vent gas fireplace is also what is call zero clearance. This simply means that the heat is pushed out the front and the sides stay cool. This will allow different items that are combustible to be place right beside the fireplaces. If you need to save even more space, the direct vent can be inserted into the wall. Or you can pick a mantel to surround your fireplace. With a choice of many different stone looks or rich looking wood grains and textures, one is sure to fit most any type home decorating scheme you have. 

The gas fireplace direct vent are highly efficient. They are great for zone heating. This means you have a room or space that needs heating without heating the whole house. This will allow the central heating system to be turned down or off when other rooms will not be used, you would just heat the place or room you are in. Some of the fireplaces will come with gas fireplaces accessories such as a remote control and will have the manual control. 

The gas fireplace direct vent will use either natural gas fireplace or liquid propane gas fireplaces. One of the great features of the gas fireplaces is the fact it can be used if the power goes out. The blower system is the only component that uses electricity and this will not work with out it, but the gas fireplaces do not require electricity. Since any energy source will produce carbon monoxide, it is recommended to have one in every home regardless of the type of heating system you may be using.