DirectVent Pro Pipe Extension

Planning Your DirectVent Installation!

The following design recommendations are general guideline to assist in the selection and design of venting components for your installation. Always follow DuraVent Installation instructions before installing your chimney system.  The directions are enclosed with the support box or cap. The Installation instructions can also be viewed on the Additional Products Info Tab.

Important: Check the manufacturer’s plate and instruction manual to confirm that the DirectVent is approved for use on the appliance you are installing.

• The inner and outer pipe diameters should equal the outlet size of the appliance.
• Check the appliance manufacturer’s installation instructions to verify which types of vent configurations are allowed (example: vertical, horizontal, chimney reline, etc.). Check for any venting restrictions such as maximum or minimum vertical rise, maximum horizontal run, maximum offset, etc.
• Maintain Clearances.  Maintain at least the minimum air space between the vent pipe and combustibles, as stated in the appliance manufacturer’s installation instructions. Use proper bracing and support. Follow all local building codes and when finished have your venting system inspected.

Applications:

DirectVent Pro is a unitized, coaxial (concentric) venting system designed for use with direct vent gas or propane stoves, heaters, and fireplaces. 

Materials and Construction: 

.020” aluminum inner wall. .018” galvanized steel outer wall. Painted outer walls made of laserwelded .018” galvalume steel. Caps also available in stainless steel and copper. Outer pipe brings combustion air to the appliance. Inner pipe exhausts flue gases to the outside.  Gaskets or sealants not required (unless specified by the appliance manufacturer). 

Clearances: 

Specified by the appliance manufacturer. 

Diameters: 

4” x 6 5/8” and 5” x 8”. 

Listings: 

DirectVent Pro, in combination with the gas appliance, has been tested and listed as a decorative gas appliance system or as a direct vent heater system by a major testing agency, such as UL, CSA, or Warnock Hersey. Check with your appliance manufacturer for approval.