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You are here: Home / All Products / HVAC / Special Gas Vent (AL29-4C)

Special Gas Vent (AL29-4C)

Single Wall

Special Gas Vent: Saf-T Vent EZ Seal is the fastest and most reliable venting solution for Category I, II, III, and IV gas appliances – with no RTV sealant required.

  • AL29-4C® Stainless Steel
  • 3” through 16” diameters
  • Factory built-in silicone seal
  • 3”-5” primarily for Residential applications
  • Tested and Listed to UL1738/ULCS636 by Underwriters Laboratories, Inc

Double Wall

Saf-T Vent CI Plus is the leading commercial double-wall UL 1738 special gas vent system for condensing heating appliances, made from superferritic stainless steel. With 1″ airspace (and optional 1″ fiber blanket) between the inner wall and the outer wall, CI Plus reduces the required clearance to combustibles and has lower skin temperatures.

The joint seal is securely fastened together at the inner wall and not the outer wall like some other double wall manufacturers, for increased strength & security.  Our overlapping male-female joint also ensures the acidic condensate stays on the extremely credible, durable AL29-4C® stainless steel when installed properly.  The aesthetic mirror-like stainless outerwall provides a professional look like no other and has even been used for commercial beer brew kettle steam exhaust.

  • AL29-4C® Stainless Steel
  • 4” through 32” diameters
  • AL29-4C® SS inner / 430SS outer
  • Patented Sure Seal closure system
  • 4” – 16” diameters – Factory built-in silicone seal
  • 18” – 32” diameters – Field applied silicone sealant required
  • Tested and Listed to UL 1738/ULC S636 for Category 2, 3, & 4 Appliances
  • Tested and Listed to UL 641/ULC-S609 for L-Vent Gas & Oil Appliances

Product Resources

  • HeatFab CI Plus Info
  • HeatFab CI Plus - Clearances to Combustibles
  • HeatFab EZ Seal Info
  • HeatFab EZ Seal Clearances to Combustibles

Filed Under: HeatFab, HVAC

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