If the flue is made of pvc pipe you have a high efficiency furnace also called a condensing furnace.
Furnace flue pipe insulation.
Furnace flues require special sealing techniques.
This through the wall chimney stove vent kit supports up to 40 ft.
Pitch the flue pipe up toward the chimney.
The different types of venting.
The issue is the flue itself gets nice and warm which means there is effectively a heater going in the attic when the furnace is active.
Low flue gas temperatures allow for pvc flues instead of metal.
Well making sure that you choose the right venting style will protect them.
The furnace btw is natural gas and drives a hot water baseboard heat system.
Because so much heat is removed from the gases and used to heat your home hence the high efficiency rating it cannot rely on natural draft to exhaust flue gases through a vent.
Seems our furnace flue as it should comes up through the house through the attic and vents out through the roof.
This allows the hot combustion gases to to move into the chimney easier.
The opening around a furnace or water heater flue or chimney can be a major source of warm air moving in the attic.
Because the pipe gets hot building codes usually require 1 inch of clearance from metal flues 2 inches from masonry chimneys to any combustible material including insulation.
The pipe then slips into the hole and is sealed with a high temperature silicone caulk.
The size would depend on your furnace s flue pipe connection.
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.
The duraplus system from duravent is designed to the duraplus system from duravent is designed to stay cool on the outside provide a hot draft on the inside and boost stove efficiency offering a fire safe design that protects both the chimney and building.
You would core a hole 1 4 to 1 2 inch bigger than the outer diameter of the pipe.
Of duraplus chimney pipe sold separately and features the necessary.
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.
When we are talking about gas furnace vent pipe code we need to talk about the different types of the vents first after all you want to keep your family safe from harm.
