How To Vent Gas Fireplace Through Roof

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.

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. If you don t own a drywall screw gun rent one for this job about 25 per day. The vent pipe can terminate through a wall or a roof. 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.

Direct vent gas fireplaces are sealed systems using a double walled vent pipe and a fixed glass face on the firebox. Same with gas stoves venting can be routed in either direction vertically or horizontally. Fill the area between corner beads with joint compound. Known as a closed system the firebox of a direct vent fireplace is completely sealed with glass either tempered or ceramic.

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. Carefully move fireplace with vent as sembly attached toward wall and insert vent pipe into horizontal termination. Here s how it works. Not all fireplaces require venting and some don t require direct vent pipe but the best fireplaces do.

As the names imply these parts bear the vertical weight of the chimney components. 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. You ll need these parts to transition from the stove pipe in the room to the chimney pipe above the ceiling. Apply paper tape embedded in a layer of drywall joint compound to joints without corner bead.

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. Stoves use ceiling support boxes or support collars for venting. Wood fireplaces and stoves venting must be terminated to the outdoors vertically. Direct vent fireplaces are best for newer more air tight homes.

Additional fire blocking and shields are required at each of those passages. Sand the corners and joints smooth with 100 grit drywall sanding paper.