DirectVent Pro 5" x 8"

Unitized, co-axial venting system for direct vent gas or propane stoves, and fireplaces. DirectVent Pro features tight inner connections for superb performance, with no gaskets or sealants required. All black pipe lengths, pipe extensions, and elbows feature laser-welded outer wall seams for a tight finish. Low profile locks allow low visabily quantity of pipe needed for the run. 

Materials and Construction...

.020" aluminum inner wall. .018" galvanized steel outer wall. Painted outer walls made of laser-welded .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 manufacture).

Clearances...

Specified by the appliance manufacturer.

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 a UL, CSA, OMNI, ect. Check with your appliance manufacturer for approval.

Planning your Installation...

1. For vertical gas stoves installations, measure the height from the stove outlet to the ceiling to determine the length of black pipe required. Select a ceiling support/wall thimble cover or a cathedral ceiling support box.

2. To determine the length of galvanized pipe require, measure the ceiling thickness and the vertical rise in an attic or second story. Firestops are required at each floor level beyond the first floor ceiling suppot/ wall thinmble cover or cathedral ceiling support box. If an offset is required to avoid obstructions, use a pair of 45° elbows. For proper support, use elbow straps with offsets. Use wall straps for long vertical runs. Attic Insulation Shield is required in attic.

3. Measure the roof pitch. Select the proper flashing and storm collar. Determine the minimum height above the roof.

4. for horizontal installations, check the appliance manufature's instructions for minimum rise and maximum horizontal run. A snorkal termination may be used if height restrictions prevent adequate rise above the appliance. Select the appropriate Horizontal Termination Cap. To protect vinyl siding, select vinyl siding standoff. Check appliance manufacturer's instructions for wall thimble and firestop requirements. 

Refer to our Typical Venting Installation drawings to select the appropriate component parts for your installation.

More Typical Installations:

Design Recommendation...

The following design recommendations are general guideline to assist in the design and selection of venting components for your installation. Always follow DuraVent Installation instructions enclosed with the cap or support box before installation instructions enclosed with the cap or support box before installing your chimney system. Installation instructions can be viewed online at www.duravent.com or www.mheat.net, under catalogs. Important: Check the manufacturer's rating plate and instruction manual to confirm that the DuraVent direct vent system is approved for use on the brand name appliance you have selected.

• The inner and outer pipe diameters should match the outlet size of the appliance.
• Check the appliance manufacturer's installation instructions to confirm which types of vent configurations are permitted. Also, check for any venting restrictions such as maximum horizontal run, minimum and maximum vertical rise, maximum offset, ect.
• Be fire safe! Maintain at least the mimimum clearances (air-space) between the vent pipe and nearby combustables, as specified in the appliance manufacturer's installation instructions. Use proper support and bracing. Follow local building codes and have your venting system inspected. 

DuraVent link for Direct Vent Pro                http://www.duravent.com/Product.aspx?hProduct=5