Furnace Pvc Vent Pipe Installation

Must conform to the requirements of the national fire protection association.

Furnace pvc vent pipe installation.

Only fgv flue gas vent pvc certified to a specific standard ulc s636 may be used. I ve read dozens maybe hundreds of high efficiency furnace installation manuals. There s no problem with a one pipe system but the rules for venting are different. 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.

Every single one of them had instructions for a direct vent and non direct vent installation. A gas fired furnace for installation in a residential garage. 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. Continuous operation outside of this range may shorten furnace life.

Do not install furnace in any other position other than upflow. 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. For example here in canada schedule 40 pvc dwv drain pvc may not be used. When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space containing the furnace the return air shall also be handled by a duct s sealed to the furnace casing and terminating outside the space containing the furnace.

The 2 pipe leaves the furnace and connects to the 3 pipe at the first turn. The 3 diameter pipe is cellulose core which is approved by my furnace manufacturer. This furnace operates best when return air temperature is between 55 f and 80 f. The installation of the furnace wiring warm air ducts venting etc.

The national fuel gas code ansi. Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys. Doing so could cause heat.