The flue is the metal tubing that extends up from the top of your gas furnace or water heater that carries the carbon monoxide gas from the heating unit to your.
Insulating gas furnace exhaust pipe.
How to insulate a furnace room.
Rigid foam insulation is attached to the.
The plastic gas furnace intake pipe can be insulated but any insulation strategy must include a vapour barrier on the outside.
This high efficiency venting system must be installed when you install the new furnace.
For hot water systems install electrometric or urethane rubber pipe insulation with a suggested minimum r value of 6 only on supply 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.
How to insulate a metal flue pipe.
Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys.
These pvc pipes are connected to the furnace and expelled outside.
Insulating the walls and ceiling in a furnace room can reduce heating costs and make the furnace more energy efficient.
To insulate your pipes follow these rules.