What is the proper way to seal a “B” vent in a attic floor?
The “B” vent is a 6” heater flue that services the gas foced hot air furnace in the basemet that is 80% efficent. The top of the chase is wide open in the attic. Can I seal the top of the chase with metal flashing and fire caulk? Will this create a fire hazard? I am in the Philadelphia area.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part
Replies
In my opinion you should only use parts and installation methods from the manufacturer of the vent pipe. If you call them, the tech support/product engineering people can usually help.