Hfurnace Roof Vent Too Short

I am getting condensation dripping down the outside face of my furnace vent at the roof.

Hfurnace roof vent too short.

The master flow 4 in. A gas furnace uses a double wall flue pipe for its vent. A chimney that s too short can result in poor appliance performance. What types of problems are caused when the plumbing vent at roof level is only 2 inches.

Video turorial on how to change out a plumbing vent boot. Goose neck vent the master flow 4 in. Furnace vents remove fumes and combustion air that are generated by gas and oil fired furnaces. There is a cast iron exhaust pipe that travels from my basement to above the roof.

The vents consist of circular or oblong pipe that attaches. A rusted area on a vent pipe not only lets rainwater enter the attic but also allows potentially dangerous downdrafts to push fumes into the home s living space. This vent is designed to be used on 4 in. Works for any size pipe.

To guarantee you have enough pipe you must follow the 3 2 10 rule. Furnace vent caps may be damaged from a hailstorm. Jerry peck construction litigation. In your area not much.

For many homes a gas furnace is the preferred heating device it has proven to be an efficient and reliable way of meeting household heating needs over the years. These caps are easy to replace with a versacap. The constant exposure to weather weakens a gas furnace roof vent s outer liner and termination cap. Just be sure that it has not fallen down in the attic and that it is supported properly.

What you are seeing in picture 1 below is the aluminum sleeve and cap i installed when replacing my roof. Poor venting if too short runoff from the roof entering the vent those are the two main things. Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl. Ben demonstrates how easy it is to install a versacap.

I think i know why this is happening i m just curious how to remedy it. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it. With offsets tallied and the roof penetration point determined you can calculate how much chimney pipe you need. The vent pipe or flue is a vital component of the furnace that transmits emissions from the combustion process out of the building.

Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation.