Venting A Gas Fireplace To The Outside

Here s the simplified explanation.

Venting a gas fireplace to the outside.

A direct vent gas fireplace doesn t need a chimney. Direct vent or sealed combustion fireplaces use a coaxial vent pipe that performs the dual function of both air intake and exhaust outlet. Be sure to read them carefully because they might differ slightly from what we show here. Thus it pulls conditioned air from the space and exhausts it to the outside creating inefficiencies within the building envelope.

One chamber draws oxygen in from the outdoors for the fire while. The flue gases exit or exhaust through the inner pipe to the outside and the combustion air is drawn in through the outer pipe. The vent pipe is co axial there s an inner and an outer pipe concentric. Gas fireplace ventilation options there are three venting options available for gas fireplace installations.

Unless an outside air kit is installed an atmospheric fireplace relies solely on indoor air for combustion. Wood fireplaces and stoves venting must be terminated to the outdoors vertically. Guide to choosing installing troubleshooting through wall or side wall venting exhaust devices for heating appliances like oil or gas fired boilers furnaces or water heaters photos examples of sidewall venting or direct venting installations that are improper and or. Specialized venting includes a direct vent that has two chambers that work together to perform dual purposes.

Sidewall vent direct vent direct exhaust systems for oil or gas fired heaters. For the purposes of venting the key difference is that a fireplace must have a dedicated chimney or vent system that can be located within 2 or 3 inches of combustible materials such as inside a wood chimney chase or near an exterior wall but an insert requires use of chimney liner that runs within an existing functional fully non combustible chimney such as a brick chimney with a clay or terracotta flue or a stainless steel pipe. Gas fireplace venting solution. Pellet stoves most are vented horizontally directly through the wall to the outdoors.

Direct vent systems transfer the combustion fumes and pollutants outside the home via a chimney or an opening on the exterior of the home. Natural vent often called b vent utilizes an existing masonry chimney or a. This process is simple and fire safe as long as you follow the manufacturer s directions. They offer convenience and safety with sealed combustion systems that protect indoor air quality by drawing outside air for the fire and expelling 100 of combustion exhaust and byproducts outside the home.

The air in the outer pipe doesn t mix with the flue gases in the inner pipe. It makes perfect sense that direct vent gas fireplaces are the most purchased hearth systems today. Rather you can run a special vent to the outside through an exterior wall. Direct vent hearth products are the safest option for supplemental heating.

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.