For questions specifically relating to structures that ventilate combustion byproducts of fuel burned in an interior space, such as a fireplace, stove, or furnace.

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Do I have studs on my plaster and lath wall around/above fireplace?

my home was built in 1892. The fireplace was a coal burner that has since been replaced by a propane fireplace insert. I want to mount a TV above the fireplace but am uncertain as to what is behind ...
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Can I install corrugated stainless steel tubing (CSST) inside a masonry chimney ash clean out?

I would like to install in an existing masonry fireplace, a decorative propane fire log unit. I have seen the professional installation that used steel pipe outside the chimney going the straight ...