Cable guy told me to drill a hole from outside in right through sheet metal in gas chimney to connect tv to cable mounted on mantle?

  • 6
    WTF? Cable guy is a lethal (read: CO poisoning) caliber idiot... – ThreePhaseEel Feb 8 '15 at 8:34
  • 5
    Yup, that is about one of the worst ideas I have ever read on DIY Stack Exchange. That cable guy unknowingly is trying to screw your place up and you along with it. I don't know why it was down voted. It is a question asked by somebody who needed to know. – Jack Feb 8 '15 at 9:23


Chimney vents must not be compromised! All heat and gas related stacks must be left intact. No additional venting or other holes may be put in them. As the comments have noted, you run the serious risk of carbon monoxide poisoning, as well as the risk of chimney and house fires.

Find another route well away from the chimney.

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