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    Metal-Fab 5 Inch to 7 Inch Type B Round Chimney Pipe Increaser

    List Price: $49.99
    Sale Price: $36.95
    You Save: $13.04 (26%)
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    Product Details
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    Manufacturer: Metal-Fab
    Part Number: 5MIX7
    eFireplaceStore Item Number: MFB-5MIX7
    UPC: 622417101615


    • Allows connection of 5" and 7" pipe
    • .018" galvanized steel outer wall and aluminum alloy inner wall
    • Double-wall design allows a 1" clearance to combustibles
    • For use with Metal-Fab Type B Round Chimney Pipe
    • Secure locking system requires no tools
    • Hemmed flue and casing eliminate sharp edges
    • 5" end is compatible with other brands of UL Listed round gas vent pipe (see list below)
    • Listed to UL 441
    • Limited one-year warranty
    • Specifications:
      • Small End: 5" Dia.
      • Large End: 7" Dia.
      • Height: 8.5"
    3" to 6" pipe sizes are compatible with the following brands of Type B gas vent pipe :
    • General Products Co. - Airjet
    • American Metal Products Co. - Amerivent
    • Hart & Cooley - Metlvent
    • Household Manufacturing Inc. - Metalbestos and Airmate
    • Mitchell Metal Products Inc. - Mitchvent
    • Selkirk Metalbestos - Metalbestos
    • Simpson Dura-Vent Inc. - DuraVent
    • ECCO Heating Products - ECCO Manufacturing

    *Venting Requirements: This unit requires venting pipe with an inner diameter of 5 Inches. Please see the Venting Components section on this page if available for venting pipe that must be used with this unit.

    Part of Metal-Fab's versatile Type B line, this Metal-Fab 5 Inch to 7 Inch Type B Chimney Pipe Increaser is exactly what you need if you want to increase your round vent diameter from five to seven inches.
    Customer Questions & Answers
    1 Question & 1 Answer
    from Methuen, MA asked:
    June 10, 2013
    Is this chimney pipe increaser suitable for a wood burning stove?
    1 Answer
    Because this is a B-vent pipe increaser, it can only be used in gas burning applications. The material used to construct this component does not have the heat rating to stand up to the flue gases of a wood stove. Unfortunately, we do not offer a 5 to 7 inch increaser in galvanized stove pipe. You will likely need to have one fabricated.
    Submitted by: Collin C. - NFI Master Hearth Professional on June 10, 2013

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