Gas Furnace Vent Pipe

Also known as the type b this vent is operating on the natural air convection.

Gas furnace vent pipe.

In contrast modern high efficiency condensing furnaces exhaust much cooler gasses and need only plastic pipe materials such as pvc cpvc or abs for their exhaust vents some high efficiency furnaces also include a plastic pipe for intake area and all types. Two cases which can cause poor venting are the oversizing of the vent or reducing the. Duravent 4 x 6 5 8 directvent pro direct vent pipe double wall co linear masonry chimney conversion kit with flex pipe and prairie cap model. A conventional natural gas furnace will vent the dangerous combustion gases through a simple vertical exhaust system that is attached to the furnace.

When the vent is withdrawing air from the house it expels the gas outside through the vent. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner. The vent pipe of your gas furnace plays an important role by carrying all toxic gases created during the combustion within the furnace out of the building. A gas wall heater or older forced air furnace generally requires a type b double wall metal vent pipe while a new high efficiency furnace requires a schedule 40 pvc vent pipe.

Table illustrations of the required space between a direct or side wall vent for a gas fired heating appliance and building windows doors corners gas meter air intakes sidewalks balconies. On the other hand the higher the efficiency of a furnace the lower the flue gas temperature. Of the vent plus the furnace input and efficiency are factors affecting the temperature of the flue gases. Basic instructions on how to run pvc flue venting on high efficiency furnaces.

Gas appliance direct vent clearances distances from direct gas vent to building features sidewall vent direct vent direct exhaust systems for gas fired heaters water heaters other appliances. Type b vent pipe. Today we re going to help you understand the difference between the two styles of furnace venting by answering the question should a gas furnace flue pipe go through the roof or the side of. Higher btuh furnaces produce higher flue gas temperatures.

You should know how to vent a gas furnace and get rid of the harmful gases for the health and safety of anyone living in your building.