Direct Vent Gas Fireplace Through Existing Chimney

A gas stove can be vented through an existing chimney whether it is a manufactured or masonry chimney.

Direct vent gas fireplace through existing chimney.

Unlike traditional fireplaces which need a flue through the roof gas fireplaces are vent free. Be sure to read them carefully because they might differ slightly from what we show here. Alternatively you can possibly knock a hole in the back of your chimney and just go out the side if you d prefer more labor but less flue inserts you d need to purchase. A direct vent gas fireplace doesn t need a chimney.

To ensure proper venting however a liner must first be installed in the chimney. This process is simple and fire safe as long as you follow the manufacturer s directions. Direct vent is a term used to describe a specifically designed fireplace that performs differently from the traditionally vented fireplace which use a chimney. The heat generated remains inside the room rather than vanishing through the chimney.

Hard to say without seeing it but typically you can use the existing flue provided you add the proper direct vent chimney insert for your particular gas fireplace. However the glass doors enhance the conversion of most of the fuel into usable heat preventing significant heat loss. Gas fireplaces burn natural gas and propane just like a traditional wood fireplace. Direct venting uses a power ventilating blower or fan and in some models a heat exchanger plenum to cool outgoing gases passing through the building wall sidewall direct exhaust or roof or through an existing unused chimney through which a vent pipe is passed vertical direct exhaust.

One of the benefits of this type of design is that it must draw air necessary for combustion from the outside since the sealed combustion chamber does not allow air to be drawn in from around the fireplace. For the diy guy here is how to install a gas fireplace insert with a chimney liner. Next i will remove the firepla. Rather you can run a special vent to the outside through an exterior wall.