Wiring through a chimney with an active NG liner

[marmathsen]

I need to get a wire from a residential attic to a basement 3 floors down. The only access is inside a brick chimney that as a liner for an active natural gas water heater that shares the same chimney flue.

This seems real wrong to me. Is there ANY code that would actually allow this? If it were allowed I clearly would need to oversize based on ambient heat.

Would love any input and specific code articles.

Thanks!

Rob

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[nickelec]

Why not exit the house via the attic and change over to conduit you can strap to the chimney

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[marmathsen]

Why not exit the house via the attic and change over to conduit you can strap to the chimney

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The chimney runs up the center of there house. Not outside.

Rob

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[LarryFine]

Is the gas flue a double-wall pipe, and there is space between it and the outer clay flue?

 

[marmathsen]

Is the gas flue a double-wall pipe, and there is space between it and the outer clay flue?

Yes there is a gap. But I won't be able to control how close the the wire gets to it when I'm fishing it 3 floors down.

No it is not double walled. It's single.

Rob

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[Dennis Alwon]

I would not run the wire thru the flue at any rate. Find another way or pipe it up on the outside of the house near a gutter downspout or some other inconspicuous place

 

[LarryFine]

Go old school like I was taught with a jack chain alongside a plumbing stack.

 

[PaulMmn]

Or the back corner of a set of stacked closets.

 

[RRJ]

One time we ran high temp fiberglass jacket cable under an industrial furnace of a glass company. If you decide to do it you should run high temp cable.


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[nickelec]

Go old school like I was taught with a jack chain alongside a plumbing stack.

I was taught that same trick. I'll never forget the time I found one in my bosses bag one day and said what's this? He showed me I thought he was a genius

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[mopowr steve]

I use ol’ fashion brass picture chain, it’s smooth oval links tend not to snag on very much.