I began the installation of the new vent flue by purchasing schedule 40 pvc pipe in 2 and 3 diameters.
Furnace pvc vent pipe installation.
Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys.
Doing so could cause heat.
Do not install furnace in a location subject to continuous higher or lower temperatures.
The installation of the furnace wiring warm air ducts venting etc.
Every single one of them had instructions for a direct vent and non direct vent installation.
I ve read dozens maybe hundreds of high efficiency furnace installation manuals.
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 3 diameter pipe is cellulose core which is approved by my furnace manufacturer.
The national fuel gas code ansi.
For example here in canada schedule 40 pvc dwv drain pvc may not be used.
Only fgv flue gas vent pvc certified to a specific standard ulc s636 may be used.
This furnace operates best when return air temperature is between 55 f and 80 f.
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.
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.
The 2 pipe leaves the furnace and connects to the 3 pipe at the first turn.
A gas fired furnace for installation in a residential garage.
Continuous operation outside of this range may shorten furnace life.
Do not install furnace in any other position other than upflow.
Must conform to the requirements of the national fire protection association.