Vent Requirements; Altitude Considerations - Travis Industries Lopi Northfield Owner's Manual

Installation

Vent Requirements

• The gas appliance and vent system must be vented directly to the outside of the building, and never be attached to a
chimney serving a separate solid fuel or gas-burning appliance. Each direct vent gas appliance must use its own
separate vent system.

In addition to the requirements listed here, follow the requirements provided with the vent.

When the vent passes through a wall a wall thimble is required. When the vent passes through a ceiling a support
box or firestop is required. When the vent passes through the roof, a roof flashing and storm collar are required.
Follow the instructions provided with the vent for installing these items. NOTE: Wall thimbles may have different
dimensions than what is required by this heater.
• The vent must maintain the required 1" clearance to combustible materials to prevent a fire. Do not fill air spaces with
insulation.
Altitude
Considerations
• Failure to adjust the air shutter
properly may lead to improper
combustion which can create a
safety hazard. Consult your
dealer or installer if you
suspect an improperly adjusted
air shutter.
• This heater has been tested at
altitudes ranging from sea level
to 6,000 feet (1,800 M). In this
testing we have found that the
heater, with its standard orifice,
burns correctly with just an air
shutter adjustment.
Approved Caps

Always use the high-wind cap
(the sconce cap is not
approved for this stove).
Approved Vent

Use Simpson Dura-Vent Direct-Vent Pro (or GS)*.
* Other vent may be approved with this stove. Check with the vent manufacturer for details.

Vent Diameter is determined by vent configuration. Rear vent configurations with no rise use 8" (203mm) diameter
vent, all other vent configurations use 6-5/8" (168mm). See Approved Vent Configurations on page 16 for details.

Installation instructions for Simpson Dura-Vent may be found at www.duravent.com
Vent Installation
•
Slide the vent sections together and turn 1/4 turn until the sections lock in place.
• Screws are not required to secure the vent. However, three screws may be used to secure vent
sections together if desired.
• High temperature sealant is recommended at the appliance starter section connection (use high-
temperature silicone or Mill-Pac®).
• If disassembly is required, at time of re-assembly check to see if the vent creates a tight fit. If it
does not, apply high temperature sealant to the joints of the affected sections.
• Horizontal sections require a 1/4" rise every 12" of travel
• Horizontal sections require non-combustible support every three feet (e.g.: plumbing tape)
© Travis Industries
(for qualified installers only)
Vertical Termination
NOTE: always use the "high-
wind" version (if applicable)
Use a roof flashing and storm collar
whenever passing through the roof
Use a firestop whenever
passing through a ceiling
Use a support box
on exposed vent
Use a thimble when
passing through a wall
Minimum
Framing for wall
thimble
Maintain a minimum 1"(25mm)
clearance from vent to any combustible.
4091120
15
Vertical Vent
Requirements
Maintain a minimum 1"(25mm)
clearance from vent to any
combustible
Horizontal Vent
Requirements
Horizontal Termination
100-01239_000