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    Double wall stainless steel exhaust systems

    Chimneys made of stainless steel with high quality insulation material, available in different designs, materials and colors.

    DWAF - Boiler Stack

    Double Wall All Fuel Exhaust system

    System features

    Specifications

    Description

    Double Wall All Fuel Exhaust System:
    Easiest and Fastest joint assembly on the market using innovative and industry first technology

    Material

    444 or 316L stainless-steel inner liner
    304 stainless-steel outer jacket

    Material Options:
    DWAF-AE: 444 or 316L stainless inner, 409 stainless outer jacket

     

    Insulation

    1 ½” thick ceramic fiber insulation compressed into 1 ¼” space

     

    Diameter

    6 - 36"

     

    Connection

    2.2" overlapping joint with Patent-Pending light-weight technology, and double female socket peritting fastest alignment/installation on the market. 
    1. Use supplied silicone sealant to make the complete seal. 
    2. Push the male/female ends together
    3. Install the outer locking band to ensure correct engagement

     

    Literature

    Product data sheets and catalogs:

    DWAF - Technical Data Sheet - Boiler Stack

     

    Installation manuals:

    DWAL Installation manual 

     

     

     

     

    UL Summaries:

    UL103

    UL441

    UL641

    UL1738

    UL1978

    UL2561

     

    Main features

    • Factory CAD designs for installation ease
    • 100% Stainless-Seel with maintenance-free Limited lifetime Warranty

    Applications

    • Boiler Stack for commercial / industrial boilers or appliances that do not exceed 1400°F flue gas temperatures
    • Special Gs Vent for condensing boilers and water heaters 
    UL Listings (and ULC)


    UL-1738 Standard, Venting Systems for Gas-Burning Appliances, Categories II, III & IV (ULC-S636 Standard for Type BH Gas Venting Systems)

     

    UL-1978 Standard
    Grease Duct
    (ULC-S662 Standard for Factory-Built Grease Ducts)

     

    UL-103 Standard
    Building Heating Appliance Chimney
    (ULC/ORD-C959 Industrial Type 540°C Chimney)

     

    UL-103 Standard

    Additional Type HT Listing

     

    UL-2561Standard, 1400°F Chimney Listing 
    (ULC-/ORD-C959 Industrial Type 760°C Chimney)

    Additional UL/ULC 20" W.C. Pressure Listing


    25 years warranty!