High Efficiency Furnace Venting Roof

Basic instructions on how to run pvc flue venting on high efficiency furnaces.

High efficiency furnace venting roof.

Due to the condensing nature of a high efficiency furnace its venting must be made of a material that is resistant to corrosion. However without a quality installation the furnace may never deliver its expected energy. High efficiency furnace venting uses two heat exchangers. A high efficiency or condensing furnace can significantly reduce energy consumption in a typical home.

Conventional furnaces use only one they use a two stage process. In the first stage gas is burned to heat the first heat exchanger. In the second stage the secondary heat exchanger extracts heat out of the hot. Should my furnace flue pipe go through the roof or the side of the house.

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 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. Example of high efficiency furnace venting on a roof. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.

Read more elaboration about it is given here in respect to this can a high efficiency furnace vent through a chimney. The efficiency rating of a furnace is called afue annual fuel utilization efficiency. Venting for high efficiency gas furnaces materials. A high efficiency furnace uses a different type of venting system because it extracts the heat that remains in those combustion gases before venting the resultant mixture of water and carbon dioxide.

Energy star has found that new furnaces often do not perform to their rated efficiency with. In a great majority of cases plastic piping is used to vent high efficiency equipment. Also known as the type b this vent is operating on the natural air convection. If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof.

After the first heat exchanger is heated the second stage begins. That depends on whether you have a standard efficiency or a high efficiency furnace. Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys. 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.