Single Wall Vent Pipe In Attic

We are having some insulation installed in our attic next week and when i was looking in there i found the gas furnace exhaust vent chase that vents to the roof.

Single wall vent pipe in attic.

The problem with this is that the single wall pipe requires even greater clearances 6. Single wall metal pipe shall not originate in any unoccupied attic or concealed space and shall not pass through any attic inside wall concealed space or floor. Furnace vent pipe too close to combustibles. A proper vent with insulation baffle looks more like this.

If you enjoyed this post and would like to get notices of new posts to my blog please subscribe. It s called the p trap and it starts the sewage ventilation process. Duravent 4 inner diameter duraconnect ii type b gas vent double wall 12 flex pipe length. The installation of a single wall metal pipe through an exterior combustible all shall comply with section g2427 10 15.

Many municipalities do not allow metal foil tape either. Single wall vent pipe must be connected with 3 sheet metal screws at each joint. These drain pipes connect to. The house was built in 1973 and the furnace was replaced several years ago and that vent isn t used to exhaust the furnace but the gas water heater does hook up to it.

You ve opened up the cabinets under a sink before to see the p shaped tube directly underneath the drain right. Insulation baffle around a b vent pipe in an attic. There is a disconnection at the elbow. Really though it should be a double wall b vent.

This vent pipe is connected to the shared vent stack with the furnace. This single wall vent on a summerville home requires a 6 clearance to combustibles. Single wall natural draft gas water heater vent pipe cannot be used in unheated areas like attic or garage even if only partially penetrating that space because such vent pipe installation will cause excessive condensation on vent pipe walls and compromise proper drafting double wall pipe b vent type is required. 6 inch round gas vent collection.

There is a y and the 4 metal water heater connects to it but. Type b round gas vent pipe double wall 12 adjustable pipe length. Single wall is not allowed in unheated areas and not allowed to transition in the attic. Cloth duct tape is not permitted to be installed on fuel burning appliance vent pipes.

Visualizing the pipes inside your wall is made easier if you start from where you can see. Metal flue fire clearance requirements single wall metal pipe flues oil fired equipment.