The DuraVent DirectVent Pro system facilitates the conversion of existing Class-A metal or masonry chimneys to direct vent configurations. Proper installation, adhering to provided instructions, is critical to prevent vent-related fires, a major cause of which is insufficient clearance to combustible materials. The system utilizes flexible pipe, such as DuraVent’s DuraFlex, passed down through the existing chimney structure. Installation procedures and required conversion kits vary depending on the type of existing chimney. This document details installation precautions, chimney conversion specifics, and warranty information based on the provided documentation.
Installation Precautions and General Guidelines
The DuraVent Direct Vent System requires strict adherence to installation instructions to ensure safe and effective operation. A primary concern is maintaining the necessary air spaces between the vent system and any combustible materials. Failure to do so significantly increases the risk of a vent-related fire. The documentation emphasizes the importance of consulting the most up-to-date installation instructions available on the DuraVent website (www.duravent.com).
Converting Class-A Metal or Masonry Chimneys
The process of converting an existing chimney to a direct vent system involves specific steps and requires the use of appropriate conversion kits. The documentation outlines procedures for both Class-A metal chimneys and masonry chimneys.
Class-A Metal Chimney Conversion
For Class-A metal chimney conversions, two specific kits are identified:
- Conversion Kit A (0931): This kit is designed for use with 6-inch internal diameter (ID) chimneys manufactured by Metalbestos, Security Chimney, Jackes-Evans, Hart & Cooley, and Pro-Jet.
- Conversion Kit B (0932): This kit is intended for use with 6-inch ID chimneys with a termination cap.
The installation process involves passing a 4-inch diameter aluminum flexible pipe, such as DuraVent’s DuraFlex (an example of an Underwriters Laboratories (UL) listed flex pipe), down through the center of the existing metal chimney system.
Masonry Chimney Conversion
Converting a masonry chimney requires ensuring the existing flue opening has a minimum area of 35 square inches to maintain proper intake and exhaust flow. The installation process involves the following steps:
- Assemble sections of black direct vent Top Adapter pipe to determine the center of the masonry opening.
- Utilize a Connector to mount directly on the masonry, providing necessary clearance to combustible materials.
- Secure the Flashing (705C) to the top of the masonry chimney using a non-hardening sealant-adhesive. If the Flashing is larger than the chimney opening, it should be cut and folded to ensure a proper fit.
- For highwind termination, refer to Figure 11 (not included in the provided documentation).
- Standard Termination installation is also mentioned.
Component Details and Specifications
The documentation references specific components used in the DirectVent Pro system:
- DuraFlex: A UL-listed flexible pipe example for use in the system.
- Top Adapter Pipe: Used in masonry chimney conversions to determine the center of the opening.
- Connector: Used in masonry chimney conversions to mount on the masonry and provide clearance.
- Flashing (705C): Used in masonry chimney conversions to seal the chimney top.
- Termination Cap: Referenced in relation to Conversion Kit B for metal chimneys.
Warranty Information
DuraVent offers a ten-year transferable warranty on Ventinox products, extending from the original homeowner to subsequent buyers. This warranty does not cover normal wear and tear, smoke damage, or damage resulting from chimney fires, acts of God, or products purchased from unauthorized dealers, retailers, or distributors.
Conclusion
The DuraVent DirectVent Pro system provides a method for converting existing chimneys to direct vent configurations. Successful installation relies on careful adherence to provided instructions, proper selection of conversion kits based on the existing chimney type, and attention to maintaining adequate clearances to combustible materials. The system utilizes specific components, such as flexible aluminum pipe and flashing, to ensure a secure and functional installation. A ten-year transferable warranty is offered on Ventinox products, subject to specific exclusions.
Sources
The provided source material is insufficient to produce a 2000-word article. Below is a factual summary based on available data.