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    Dura-Vent Type B Gas Vent Vertical High-Wind Rain Cap - For Vent Pipes with a 4-Inch Diameter - 4GVVTH

    List Price: $29.99
    Sale Price: $23.34
    You Save: $6.65 (22%)
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    Product Details
    Free Venting Design & Quote:
    Manufacturer: DuraVent
    Part Number: 4GVVTH
    eFireplaceStore Item Number: CPF-68430
    UPC: 662492000410


    • Protects vertical vent terminations from rain and wind damage
    • For use with 4" Dura-Vent Type B Gas Vent pipes
    • 25-year warranty
    • Dimensions: 4" = 8.25" H x 8.5 outer diameter

    *Venting Requirements: This unit requires venting pipe with an inner diameter of 4 Inches. Please see the Venting Components section on this page for venting pipe that must be used with this unit.

    This rain cap will keep rain and snow from entering your vent and its unique design provides great protection for your vent termination from damage if your house is frequently subjected to high winds. This cap is appropriate for use with the 4" Dura-Vent Type B gas vent pipes and has dimensions of 8.5" outer diameter x 8.25" high. The part carries a 25-year warranty. The Dura-Vent Type B vent systems can be used with gas fireplaces, furnaces, boilers, water heaters, and space or wall heaters.
    Customer Questions & Answers
    7 Questions & 7 Answers
    from PA asked:
    March 23, 2016
    Can this Dura-Vent cap be used with Hart & Cooley 4" b-vent gas piping?
    1 Answer
    This particular cap will only twist lock with 4" diameter Duravent type B vent systems. We do however carry the Metal-Fab High-Performance Type B Round Chimney Vent Cap - For 4 Inch Chimney Systems which is compatible with Hart & Cooley 4" type B venting components.
    Chris C.
    on March 23, 2016

    from Cheyenne, WY asked:
    April 18, 2014
    What size high wind cap do I need for a 4" type B furnace exhaust pipe?
    1 Answer
    This would be the correct cap to use, if your pipe has a 4 inch inner diameter. Many brands of B-vent parts are model specific and this is the case with the Dura-Vent brand. The attachment hems are specific to the brand and will not readily interchange.
    Collin C. - NFI Master Hearth Professional
    on April 18, 2014

    from Greenup, Illinois asked:
    February 5, 2014
    What is the dimension of the collar on this item? Will it fit on any type B 4 inch double wall pipe as long as self tapping screws are used?
    1 Answer
    The only dimensions available are the 4" diameter dimension. This cap is designed to lock into position with Dura-Vent Type B Gas Vent pipes only and cannot be used with any other type or brand of pipe.
    Dawn H.
    on February 5, 2014

    from PA asked:
    January 25, 2014
    Is it okay to use this cap on the wall with a horizontal application?
    1 Answer
    B-vent appliances are not usually able to be terminated horizontally. As such, horizontal vent caps are not readily available and this vertical cap would be the only choice. It is important to note that most manufacturers of appliances that vent horizontally have a specific cap that they offer.
    Collin C. - NFI Master Hearth Professional
    on January 27, 2014

    Ray Johnson
    from Gulfport, MS asked:
    November 11, 2012
    I have been looking to replace my current rain cap, because it is letting water into my exhaust pipe. I'm having a problem finding the right cap because my O.D. measurement is 4.55" and the pipe I need to attach it to has grooves that the cap slides into, then you turn it to lock on to the existing pipe. Can you help me find what I need to replace my existing cap?
    1 Answer
    Given your outside measurements, it is likely that you have a 4 inch I.D. B-vent pipe. However, it will be necessary to measure the inner sleeve to be certain. If the pipe does prove to be 4 inches, we carry the Metal-Fab Type B Round Universal Chimney Vent Cap, which is a push-in style and can work for virtually all applications.
    Collin C. - NFI Master Hearth Professional
    on November 12, 2012

    rob radosevich
    from abq. n.m. asked:
    August 29, 2012
    Do you make an 8 inch high wind furnace vent rain cap? Do you know who does? Could I modify mine with some mesh to make it more windproof?
    1 Answer
    Most high wind caps utilize vertical baffles that overlap one another to prevent down drafting. I do not believe that adding mesh around the cap would make much of a difference. However, another option is to surround the cap in a ring of sheet metal, which would extend about 1 inch above and below the louvers/slats of the cap. You would then need to attach the ring with metal legs. Ideally, the ring would have about 3-4 inches of clearance from the edges of the cap. We also do carry a universal 8" cap, but it is a standard design that only has average resistance to wind.
    Collin C. - NFI Master Hearth Professional
    on August 30, 2012

    from kremmling, colorado asked:
    December 26, 2011
    I am having problems with my old Seigler furnace. The pilot will randomly go out after two or three heat cycles. I have adjusted and replaced many of the components, and am starting to think i may have the wrong vent cap on. I have taken measurments and all building code distances are right. I live in a very cold climate, high in the rockies, with high wind at times. Can you recommend the type of vent cap i should be using?
    1 Answer
    It does indeed sound like you are encountering an issue with back draft that is causing the pilot to extinguish or a possible fluctuation in gas pressure that causes the pilot to go out on shutdown or start up. If the pilot goes out randomly, it is more likely a draft issue and a high wind cap such as this model could solve the issue. It will be necessary to verify the brand of piping that is used to guarantee proper fit. If the pilot goes out preceding or following a heat cycle, a gas pressure deficit may be the problem. Pressure that is diverted to the main burner can cause enough of a fluctuation for the pilot to go out, if the pressure is far enough out of spec.
    Collin C. - NFI Master Hearth Professional
    on December 27, 2011

    Customer Reviews
    2 Reviews
    100% (2)
    0% (0)
    0% (0)
    0% (0)
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    50% Recommend this product (1 of 2 responses)
    By B, Shutler from on October 28, 2010
    Review for
    I live in a high wind area and so far this cap is doing it's job. No more pilot light being sucked out. No more rain or snow down the flue.
    By Snyder Plumbing from Gouldsboro, PA on November 30, -0001
    I would recommend this item to a friend.
    Delivery was as expected, was easy to install , and was as described for sale
    Prosease of installation, and design of product.
    Consnothing to dislike

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