Furnace exhaust pipe on roof. Normally they are a set of curved pipes PVC CPVC or ABS near the foundation although sometimes they are on or near the roof. The furnace exhaust pipe typically made of galvanized metal tends to run from the furnaces combustion chamber and up to the attic where it is vented outdoors. Ill show you how I fixed it. The exhaust pipe on the other hand just terminates with an open pipe facing skyward. PVC intake and exhaust vent pipes must be supported all the way from the furnace to the discharge points outside. EnjoyFurnace Exhaust Repair – Rusted PipeDONT.
Since furnace exhaust vent pipes are a prime suspect for air leaks around the chases sealing around them before insulating can great reduce infiltration and wasted heat. Class A pipe is used to vent high-temperature exhaust released from wood coal and oil-burning appliances such as fireplaces stoves boilers and furnaces. Leaks in the vent pipe have more dire consequences that demand immediate attention. These types of furnaces usually have a flue pipe that goes up through the roof of your house since the combustion byproducts are gases. Ill show you how I fixed it.
Ill show you how I fixed it. 1112 to 1212 – 40 feet above the roof surface. In this case you will need a ladder and a helper or just contact your local HVAC company. The diameter of pipe will determine what most manufacturers recommend.
A gas furnace uses a double-wall flue pipe for its vent. A conventional furnace should exhaust the hot gases of combustion through the roof vent above your home. From the outside of your house you may notice a pipe sticking out of your roof. Pipe gravity and the cooling of the flue-gases you can make the pipe too long. This Old House general contractor Tom Silva shows how to create a watertight seal around a vent pipe. Ill show you how I fixed it. So which type of venting system should your furnace have.