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krw

In article . com,
says...
Nexus7 wrote:
The plumbing stack sticks out 2' from my roof. It is a 4" iron pipe (OD
is 4.66"). That's all there is, just the pipe sticking out. What kind
of cap, if any, is appropriate for it? I can get a cap that is made for
appliance vents and is adjustable for 3-5" diameter. However this is
designed with an upward flow of combustion gases in mind. Thanks.

You don't need a cap unless you're having problems. Are you having
problems?

Perhaps there is too much rain going down the stack. ;-)

Most of the stacks I've seen stick up about a foot. Is the 2' exposed
stack typical where you are?

Maybe in a high snow area? I'm in VT and only have about a foot of
the stack exposed (though it's hard to see).

--
Keith