How To Vent Gas Fireplace Through Roof

Even using light weight b vent chimney sections the total weight of the chimney extending up through the roof will require support at one or more locations typically using a ceiling support attic support or roof support system provided by the manufacturer.

How to vent gas fireplace through roof. Stoves use ceiling support boxes or support collars for venting. Direct vent gas fireplaces most are vented to the outdoors horizontally directly through the wall but they can also be routed vertically through the roof. For instance wood burning stoves will always be vented through the roof of your house but pellet burning stoves can be vented vertically through the roof or horizontally through the wall to the outdoors. Fill the area between corner beads with joint compound.

Carefully move fireplace with vent as sembly attached toward wall and insert vent pipe into horizontal termination. Known as a closed system the firebox of a direct vent fireplace is completely sealed with glass either tempered or ceramic. As the names imply these parts bear the vertical weight of the chimney components. Direct vent fireplaces are best for newer more air tight homes.

Not all fireplaces require venting and some don t require direct vent pipe but the best fireplaces do. Here s how it works. Natural vent also referred to as b vent hearth products take in combustion air from inside the home and vent products of combustion outside home via a brick and mortar chimney or pipe venting system installed through the roof. The vent pipe can terminate through a wall or a roof.

Direct vent gas fireplaces are sealed systems using a double walled vent pipe and a fixed glass face on the firebox. You can find some of these fireplaces here if you re looking for a vent free option you can find some great options here yes the best fireplaces on the market generally use a direct vent venting system. Same with gas stoves venting can be routed in either direction vertically or horizontally. If you don t own a drywall screw gun rent one for this job about 25 per day.

Sand the corners and joints smooth with 100 grit drywall sanding paper. Combustion air enters through the outer pipe and the inner pipe acts as the vent for hot gases. Additional fire blocking and shields are required at each of those passages. Apply mastic to connecting vent cap with horizontal vent screwspipe slide wall firestop over vent pipe before connecting horizontal run to vent cap see figure 12.

Direct vent fireplaces this fireplace style uses a dual venting system either through the roof or a sidewall to bring in outside air for combustion and send combustion by products to the outside of the house. The pipe overlap should be a minimum of 11.