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Bosch Therm gas and propane tankless water heaters and Bosch Powerstream electric tankless water heaters.

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Z-Flex

Z-Flex Z-Vent Stainless Steel Venting is the perfect choice for tankless water heaters and boilers. Z-Flex Z-Vent is rated AL29-4C and is approved for Category I (vertical only), II, III & IV applications and is designed for use with boilers, high efficiency gas and oil heaters and water heaters where cool flue gases are vented under pressure. Z-Vent contains a built-in, fail-safe gasket and locking band connection. No sealant is required.

Z-Flex Z-Dens Polypropylene vent pipe is ULC S636 certified for use with high efficiency condensing oil and gas fired heating appliances having flue gas temperatures up to 230°F (110°C). Specially developed, fire retardant Polypropylene. Cat II, IV Special Gas Vent. Gas Vent BH, Class IIc. Suitable for use with negative and positive pressure appliances.

23 Item(s)

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  1. Z-Flex 5.5" x 30' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-530)

    Z-Flex 5.5" x 30' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-530)

    Z-Flex 5.5" x 30' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-530)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,120.46

    Special Price: $896.37

    Details
  2. Z-Flex 5" x 30' All Fuel Stainless Steel Kit (2ZFLKIT0530)

    Z-Flex 5" x 30' All Fuel Stainless Steel Kit (2ZFLKIT0530)

    Z-Flex 5" x 30' All Fuel Stainless Steel Kit (2ZFLKIT0530)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,111.41

    Special Price: $889.12

    Details
  3. Z-Flex 4" x 20' Smoothcore All Fuels Chimney Liner (2ZLSCXX0720)

    Z-Flex 4" x 20' Smoothcore All Fuels Chimney Liner (2ZLSCXX0720)

    Z-Flex 4" x 20' Length of Aluminum 2-Ply Liner (2ZLSCXX0720)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,108.44

    Special Price: $886.75

    Details
  4. Z-Flex 5" x 30' All Fuel Insert Kit (2OILKTX0530I)

    Z-Flex 5" x 30' All Fuel Insert Kit (2OILKTX0530I)

    Z-Flex 5" x 30' All Fuel Insert Kit (2OILKTX0530I)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,106.82

    Special Price: $885.45

    Details
  5. Z-Flex 7" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0740)

    Z-Flex 7" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0740)

    Z-Flex 7" x 40' Length of Aluminum 2-Ply Liner (2GAXXXX0740)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,104.92

    Special Price: $883.94

    Details
  6. Z-Flex 9" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0935)

    Z-Flex 9" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0935)

    Z-Flex 9" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0935)

    Aluminum Liner Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,085.85

    Special Price: $868.69

    Details
  7. Z-Flex 6" x 25' All Fuel Stainless Steel Kit (2ZFLKIT0625)

    Z-Flex 6" x 25' All Fuel Stainless Steel Kit (2ZFLKIT0625)

    Z-Flex 6" x 25' All Fuel Stainless Steel Kit (2ZFLKIT0625)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,082.54

    Special Price: $866.04

    Details
  8. Z-Flex 10" x 25' Insulating Blanket with Wrap and Gear Clamps (2INSKIT1025)

    Z-Flex 10" x 25' Insulating Blanket with Wrap and Gear Clamps (2INSKIT1025)

    Z-Flex 10" x 25' Insulating Blanket with Wrap and Gear Clamps (2INSKIT1025)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,082.44

    Special Price: $865.95

    Details
  9. Z-Flex 10" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1045)

    Z-Flex 10" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1045)

    Z-Flex 10" x 45' Length of Aluminum 2-Ply Liner (2GAXXXX1045)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,080.68

    Special Price: $864.55

    Details
  10. Z-Flex 10" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1030)

    Z-Flex 10" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1030)

    Z-Flex 10" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1030)

    Aluminum Liner Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,074.71

    Special Price: $859.77

    Details
  11. Z-Flex 4" x 40' All Fuel Insert Kit (2OILKTX0440I)

    Z-Flex 4" x 40' All Fuel Insert Kit (2OILKTX0440I)

    Z-Flex 4" x 40' All Fuel Insert Kit (2OILKTX0440I)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,058.60

    Special Price: $846.87

    Details
  12. Z-Flex Z-Dens 3" Flexible Liner (2ZDFL823)

    Z-Flex Z-Dens 3" Flexible Liner (2ZDFL823)

    Z-Flex Z-Dens 3" Flexible Liner (2ZDFL823)

    Single Walled. Can be cut to length Learn More

    Regular Price: $1,056.56

    Special Price: $845.25

    Details
  13. Z-Flex 9" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0950)

    Z-Flex 9" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0950)

    Z-Flex 9" x 50' Length of Aluminum 2-Ply Liner (2GAXXXX0950)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,049.02

    Special Price: $839.21

    Details
  14. Z-Flex 4" x 35' All Fuel Stainless Steel Kit (2ZFLKIT0435)

    Z-Flex 4" x 35' All Fuel Stainless Steel Kit (2ZFLKIT0435)

    Z-Flex 4" x 35' All Fuel Stainless Steel Kit (2ZFLKIT0435)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,048.03

    Special Price: $838.42

    Details
  15. Z-Flex 5.5" x 25' All Fuel Stainless Steel Kit (2ZFLKIT05-525)

    Z-Flex 5.5" x 25' All Fuel Stainless Steel Kit (2ZFLKIT05-525)

    Z-Flex 5.5" x 25' All Fuel Stainless Steel Kit (2ZFLKIT05-525)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,043.84

    Special Price: $835.07

    Details
  16. Z-Flex 4" x 40' Z-Max Oil, Gas, & Pellet Kit (2OILKTX0440)

    Z-Flex 4" x 40' Z-Max Oil, Gas, & Pellet Kit (2OILKTX0440)

    Z-Flex 4" x 40' Z-Max Oil, Gas, & Pellet Kit (2OILKTX0440)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,037.82

    Special Price: $830.25

    Details
  17. Z-Flex 9" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0930)

    Z-Flex 9" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0930)

    Z-Flex 9" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0930)

    Aluminum Liner Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,035.86

    Special Price: $828.69

    Details
  18. Z-Flex 3" x 40' All Fuel Stainless Steel Kit (2ZFLKIT0340)

    Z-Flex 3" x 40' All Fuel Stainless Steel Kit (2ZFLKIT0340)

    Z-Flex 3" x 40' All Fuel Stainless Steel Kit (2ZFLKIT0340)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,034.86

    Special Price: $827.89

    Details
  19. Z-Flex 8" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0850)

    Z-Flex 8" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0850)

    Z-Flex 8" x 50' Length of Aluminum 2-Ply Liner (2GAXXXX0850)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,032.67

    Special Price: $826.14

    Details
  20. Z-Flex 10" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1040)

    Z-Flex 10" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1040)

    Z-Flex 10" x 40' Length of Aluminum 2-Ply Liner (2GAXXXX1040)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,018.83

    Special Price: $815.06

    Details
  21. Z-Flex 8" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0818)

    Z-Flex 8" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0818)

    Z-Flex 8" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0818)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,012.67

    Special Price: $810.13

    Details
  22. Z-Flex 6" x 25' Z-Max Oil, Gas, & Pellet Kit (2OILKTX0625)

    Z-Flex 6" x 25' Z-Max Oil, Gas, & Pellet Kit (2OILKTX0625)

    Z-Flex 6" x 25' Z-Max Oil, Gas, & Pellet Kit (2OILKTX0625)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,011.45

    Special Price: $809.15

    Details
  23. Z-Flex 5" x 30' Z-Max Oil, Gas, & Pellet Kit (2OILKTX0530)

    Z-Flex 5" x 30' Z-Max Oil, Gas, & Pellet Kit (2OILKTX0530)

    Z-Flex 5" x 30' Z-Max Oil, Gas, & Pellet Kit (2OILKTX0530)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,009.64

    Special Price: $807.71

    Details

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Color
  1. Silver (23)
Material of Construction
  1. Aluminum (9)
  2. Ceramic Fiber (1)
  3. Stainless Steel (3)
  4. Stainless Steel AL29-4C (9)
  5. Polypropylene (1)
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  1. Z-Dens 3" Single-Wall Venting (1)
  2. Z-Flex 3" Chimney Liner (1)
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  4. Z-Flex 5" Chimney Liner (3)
  5. Z-Flex 5.5" Chimney Liner (2)
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  9. Z-Flex 9" Chimney Liner (3)
  10. Z-Flex 10" Chimney Liner (4)
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  1. Z-Flex Chimney Liner (22)
  2. Z-Flex Z-Dens Polypropylene (1)
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