Spec Sheet

Planning Your Installation
1
For vertical gas stove 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 required, 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 support/wall thimble 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 manufacturer’s instructions for minimum
rise and maximum horizontal run. A snorkel termination may be used if height restrictions
prevent adequate rise above the appliance. Select the appropriate Horizontal Termination
Cap (see appliance manufacturer installation instructions). To protect vinyl siding, select vinyl
siding standoff. Check appliance manufacturer’s instructions for wall thimble and firestop
requirements.
Design Recommenation
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 installing your
chimney system. Installation instructions can be viewed online at
www.duravent.com, under Catalogs and Instructions.
Important: Check the manufacturer’s rating plate and instruction
manual to conrm that the DuraVent direct vent system is ap-
proved 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
conrm which types of vent congurations are permitted (i.e.
horizontal, vertical, chimney reline, etc.). Also, check for any
venting restrictions such as maximum horizontal run, minimum
and maximum vertical rise, maximum oset, etc.
• Be re safe! Maintain at least the minimum clearances (air-space)
between the vent pipe and nearby combustibles, as specied in
the appliance manufacturer’s installation instructions. Use proper
support and bracing. Follow local building codes and have your
venting system inspected.
DirectVent Pro
| Direct Vent
DuraVent | www.duravent.com
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