High Efficiency Furnace Venting Roof

Conventional furnaces use only one they use a two stage process.

High efficiency furnace venting roof.

If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof. Should my furnace flue pipe go through the roof or the side of the house. In the second stage the secondary heat exchanger extracts heat out of the hot. Read more elaboration about it is given here in respect to this can a high efficiency furnace vent through a chimney.

Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys. In the first stage gas is burned to heat the first heat exchanger. In a great majority of cases plastic piping is used to vent high efficiency equipment. The condition of the chimney is a factor because new super efficient gas furnaces do not vent up the chimney they are vented outdoors horizontally through a wall by a small plastic pipe.

High efficiency furnace venting uses two heat exchangers. Example of high efficiency furnace venting on a roof. 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. Basic instructions on how to run pvc flue venting on high efficiency furnaces.

So which type of venting system should your furnace have. High efficiency furnaces produce high amounts of condensation moisture in the exhaust vent which is designed to run back into and through the furnace in order to drain out into either a floor drain or other approved draining system. Venting for high efficiency gas furnaces materials. That depends on whether you have a standard efficiency or a high efficiency furnace.

After the first heat exchanger is heated the second stage begins. When the vent is withdrawing air from the house it expels the gas outside through the vent. Also known as the type b this vent is operating on the natural air convection. A high efficiency or condensing furnace can significantly reduce energy consumption in a typical home.

Energy star has found that new furnaces often do not perform to their rated efficiency with. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner. However without a quality installation the furnace may never deliver its expected energy. Due to the condensing nature of a high efficiency furnace its venting must be made of a material that is resistant to corrosion.