Organic draft gas fireplaces don’t own a sealed combustion chamber and rely on the natural buoyancy of heated air to vent combustion gases outside of your property. A B-vent gas fireplace is a type of draft system which employs a particular pipe to take combustion gases. They could have drawbacks Even though fireplaces may be an efficient heating method.
How It Works
B-vent gas fireplaces draw air from the region around your chimney to help fuel combustion within the machine. Since flue gases are buoyant, the exhaust air moves naturally through its pipe system through your roof, in which it is completed the chimney and away from your home. The chimney walls increase in temperatures, Since the fireplace continues to vent flue gases up the chimney. The hotter the chimney walls, the better the flue gases keep their heat and buoyancy, making them exit the chimney.
Layout and Installation
B-vent pipes must be installed to the same standards as a masonry chimney Though building codes may vary slightly. These pipes may be included with combustible materials and run out of the fireplace throughout the walls of your home, terminating through a chimney on your roof. While the plan of a B-vent system is straightforward, it needs to be installed by an expert to make sure all local building code standards, clearances and safety recommendations are followed.
Pros and Cons
While gas fireplaces use the air within your home for combustion, the quantity of air is usually minimal and your home’s air quality isn’t reduced by this usage. Since a B-vent system’s plan is straightforward, it is generally less expensive to set up than a direct vent fireplace method. But while B-vent gas fireplace effectively removes combustion gases and offers heat, it may not be as energy-efficient as a direct vent system, because its design will let cool air into your house’s interior if a downdraft happens in the chimney, and some of your chimney heat may also be lost up the vent.
Safety and Warnings
B-vent systems are not meant for all kinds of fuels. They should not be used with appliances, such as fireplaces and wood stoves, incinerators, coal-fired or oil-fired appliances, or some other appliances which burn anything aside from natural gas or petroleum. B-vents are also not suitable for use with appliances which create.