Vent Requirements; Vent Clearances; Altitude Considerations - FireplaceXtrordinair 864 TRV 31K Installation Manual

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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.

The flow of combustion and ventilation air must not be obstructed.

A firestop is required whenever the vent penetrates a wall, floor, or ceiling (passes through framing
members). Horizontal vent less than 48" (1219mm) above the fireplace must use the Travis Firestop
(sku 93006094 - it incorporates a 3" (76mm) clearance above, 1" (25mm) clearance below and to the
sides of the vent). Other penetrations only require a 1" (25mm) clearance and may use a standard
firestop (make sure the required 1" (25mm) clearance is met).
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 whenever
passing through a ceiling
Use a support box

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
Installation
on exposed vent
(for qualified installers only)
Before 48" (1219mm) Rise
1" (25mm)
3" (76mm)
1" (25mm)
Required Firestop
Min. 1"(25mm)
8/17/2018 - 1482
After 48" (1219mm) Rise
1" (25mm)
1" (25mm)
1" (25mm)
Horizontal
Termination
Min. 3" (76mm)
(1" or 25mm if a
minimum 48"or
1219mm above the
fireplace)
Min. 1" (25mm)
Min. 1" (25mm)
864 31K