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  2. Chimney liner - Wikipedia

    en.wikipedia.org/wiki/Chimney_liner

    If the chimney already has a stainless-steel chimney liner but the liner is fitted the wrong way up, it needs to be turned around otherwise the chimney can leak tar and condensation. [1] A flexible flue liner prevents a carbon monoxide leak, chimney fire, or creosote buildup. The creosote build-up is the fuel inside the flue that causes the ...

  3. Duct (flow) - Wikipedia

    en.wikipedia.org/wiki/Duct_(flow)

    For insulation purposes, metal ducts are typically lined with faced fiberglass blankets (duct liner) or wrapped externally with fiberglass blankets (duct wrap). When necessary, a double walled duct is used. This will usually have an inner perforated liner, then a 1–2" (2.5-5 cm) layer of fiberglass insulation contained inside an outer solid pipe.

  4. Cured-in-place pipe - Wikipedia

    en.wikipedia.org/wiki/Cured-in-place_pipe

    Sewage repairmen inserting uncured liner into a soon-to-be repaired pipe. A cured-in-place pipe (CIPP) is a trenchless rehabilitation method used to repair existing pipelines. It is a jointless, seamless pipe lining within an existing pipe.

  5. Chimney - Wikipedia

    en.wikipedia.org/wiki/Chimney

    Flue liners may be clay or concrete tile, metal, or poured in place concrete. Clay tile flue liners are very common in the United States, although it is the only liner that does not meet Underwriters Laboratories 1777 approval and frequently they have problems such as cracked tiles and improper installation. [7]

  6. Vapor barrier - Wikipedia

    en.wikipedia.org/wiki/Vapor_barrier

    Polyethylene plastic sheet, 4 or 6 thou (0.10 or 0.15 mm), 0.03 US perm (1.7 SI perm). Advanced Polyethylene vapor retarders that pass the ASTM E 1745 standard tests ≤0.3 US perm (17 SI perm). Asphalt-coated kraft paper, often attached to one side of fiberglass batts, 0.40 US perm (22 SI perm). Metallized film

  7. Fume hood - Wikipedia

    en.wikipedia.org/wiki/Fume_hood

    Some early approaches to the problem were adaptations of the conventional chimney. [1] A hearth constructed by Thomas Jefferson in 1822–1826 at the University of Virginia was equipped with a sand bath and special flues to vent toxic gases. [2] The draft of a chimney was also used by Thomas Edison to provide ventilation in his work around the ...

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