Venting A Gas Fireplace To The Outside

Unless an outside air kit is installed an atmospheric fireplace relies solely on indoor air for combustion.

Venting a gas fireplace to the outside.

Direct vent hearth products are the safest option for supplemental heating. If you are in the market to buy a gas fireplace you ll want to consider the pros and cons of these four available venting options. Gas fireplace ventilation options there are three venting options available for gas fireplace installations. Thus it pulls conditioned air from the space and exhausts it to the outside creating inefficiencies within the building envelope.

The air in the outer pipe doesn t mix with the flue gases in the inner pipe. Direct vent chimneys fireplaces. One chamber draws oxygen in from the outdoors for the fire while. Sidewall vent direct vent direct exhaust systems for oil or gas fired heaters.

Direct vent or sealed combustion fireplaces use a coaxial vent pipe that performs the dual function of both air intake and exhaust outlet. The pipe integrates an inner conduit that exhausts. It makes perfect sense that direct vent gas fireplaces are the most purchased hearth systems today. Direct vent systems transfer the combustion fumes and pollutants outside the home via a chimney or an opening on the exterior of the home.

A direct vent gas fireplace doesn t need a chimney. Natural vent often called b vent utilizes an existing masonry chimney or a. Specialized venting includes a direct vent that has two chambers that work together to perform dual purposes. 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.

Here s the simplified explanation. Pellet stoves most are vented horizontally directly through the wall to the outdoors. Wood fireplaces and stoves venting must be terminated to the outdoors vertically. 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.

This process is simple and fire safe as long as you follow the manufacturer s directions. Be sure to read them carefully because they might differ slightly from what we show here. 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 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.