Product Knowledgebase and FAQs

Category » Z-Vent: What is it ?rss button

Venting for Tankless & Boilers

There were 7 questions found in this category:

  1. questionWhy can't I use Double wall B-Vent on my Tankless or Boiler ?
    Any other type of vent pipe will not have an air tight gasketed connection and will corode in a short period of time. This will cause a deadly carbon monoxide leak and could cause a fire. B-Vent, even though a double wall, has an alunimum inner pipe and galvanized outer shell that will not hold ...
  2. questionWhat is Z-Vent ?
    *Z-VENT vent pipe is made of AL294c stainless steel which is durable enough to use in hi-efficiency boilers and tankless water heaters. The acidic condensation produced in todays equipment will not corode Z-Vent pipe. *Gasketed connections,no need for sealant when joining pipe * The only brand ...
  3. questionWhat is the grey film inside the pipe ?
    Please let me explain what it is that you are seeing on the inside of the Z-Vent pipe. What you see is a byproduct of the way that the Z-Vent pipe is cut as it comes off our tube mill machine at the factory. You will see a brownish film (slag) that usually goes down the inside of the vent len ...
  4. questionShould I use screws,sealant or tape to secure the Z-vent connections ?
    NO, sealant,screws or tape should not be used to secure any connections on Z-vent pipe. The hi-temp gasketed end of the pipe is enough for a tight connection. Using screws will cause a leak of deadly carbon monoxide gas. Any type of tape is not suggested,the pipe has the UL listing without usin ...
  5. questionIs the Z-Vent cutable ?
    Yes, Z-Vent is the only Brand of AL294c pipe that is cutable. You can use a hacksaw with a carbon steel blade to cut thru the non-gasketed end of the pipe. * Do not a vice to secure the pipe, another person holding as you cut is the safest way. *Always wear protective gloves and glasses when cu ...
  6. questionCan I use insulation around the Z-Vent pipe ?
    NO, insulation can not be used to insulate the pipe.( UL 1738 code) If you are in a cold climate area where a greater amount of condensation will be produced,use a Z-Vent condensate drain instead of insulation. The condensate drains are available in 3 types:Vertical in-line, horizontal or in a V ...
  7. questionMassachusetts Bulletin
    Addendum to Z-Vent Model SVE Installation Instructions Following are additional instructions required by The Massachusetts Board of Plumbing and Gas Fitters: A. Modifications to NFPA-54, Chapter 10 (2) Revise 10.8.3 by adding the following additional requirements: (a) For all side wall horizon ...