Avalon Firestyles 864 TRV GS2 Installation - Manual (Page 25)

Installation
(for qualified installers only)
25
Travis Industries 4140611 100-01385
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 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).
Vent Clearances
 The vent must maintain the required clearance to combustible materials to prevent a fire. Do not fill
air spaces with insulation.
Before 48" (1219mm) Rise After 48" (1219mm) Rise
Sides 1" (25mm) 1" (25mm)
Above 3" (76mm) 1" (25mm)
Below Horizontal or 45° Section 1" (25mm) 1" (25mm)
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.
Horizontal
Termination
Required Firestop
Min. 3" (76mm)
(1" or 25mm if a
minimum 48"or
1219mm above the
fireplace)
Min. 1" (25mm)
Min. 1" (25mm)
Use a firestop whenever
passing through a ceiling
Vertical Termination
Use a roof flashing and storm collar
whenever passing through the roof
Min. 1"(25mm)
Use a support box
on exposed vent