Vent Requirements; Vent Clearances; Altitude Considerations - Lopi 864 TV 40K CleanFace Installation Manual

20 Finalizing the 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.

A wall thimble is required whenever the vent penetrates a wall.

When passing through a floor or ceiling (or other framing members) a standard 1" clearance firestop
is required.

The flow of combustion and ventilation air must not be obstructed.
Drafting Performance
This direct vent appliance requires natural draft to operate (similar to a wood stove or other heating appliance). Draft
can be adjusted using the included restrictor. The restrictor settings detailed in the manual should be followed
(variations may occur depending upon installation parameters).
Many factors may negatively influence the draft of the appliance. Travis Industries will not be responsible for improper
draft due to factors such as trees, hills, buildings, obstructions, excessive wind, extreme hot or cold outdoor
temperatures, restrictive vent terminations, or influence from mechanical systems.

Vent Clearances


The vent must maintain the required clearance to combustible materials to prevent a fire. Do not fill
air spaces with insulation.
Sides
Above
Below Horizontal or 45° Section
Vertical Termination
Use a roof flashing and storm collar
whenever passing through the roof
Use a firestop (or thimble) whenever
passing through a ceiling

Altitude Considerations


This heater has been tested at altitudes ranging from sea level to 6,000 feet (1800 M). In this testing we have
found that the heater, with its standard orifice, burns correctly with just an air shutter adjustment.

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.
© Travis Industries
Use a support box
on exposed vent
(for qualified installers only)
1" (25mm)
1" (25mm)
1" (25mm)
Use the Included Firestop
Min. 1"(25mm)
Min. 1" (25mm)
6/28/2019 - 1499
Horizontal
Termination
Min. 1" (25mm)
Min. 1" (25mm)
864 40K CF Install Aust