Vent Requirements; Vent Clearances; Vent Firestop; Altitude Considerations - Travis Industries 864 HO GS Owner's Manual

Vent Requirements

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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 it's own separate vent system.
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In addition to the requirements listed here, follow the requirements provided with the vent.

Vent Clearances

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The vent must maintain the required clearance to combustible materials to prevent a fire. Do not fill
air spaces with insulation.
Minimum Clearance to Vent

Vent Firestop

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A firestop is required whenever the vent penetrates a wall, floor, or ceiling (passes through framing
members). It may be provided by the vent manufacturer (1" clearance).
NOTE: A Wall thimble (part #58DVA-WTU) is required when venting directly to the rear (no rise).

Altitude Considerations

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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.

Approved Vent

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Use 8" (203mm) diameter Simpson Dura-Vent Model Direct-Vent Pro (or GS)*.
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Always use the high-wind cap (or high-wind sconce cap, part # 58DVA-HSCH).
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Installation instructions for Simpson Dura-Vent may be found at www.duravent.com

Vent Installation

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Slide the vent sections together and turn 1/4 turn until the sections lock in place.
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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" (6mm) rise every 12" (305mm) of travel.
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Horizontal sections require non-combustible support every three feet (e.g.: plumbing strap).
© Travis Industries
Installation
(for qualified installers only)
1" (25mm)
4100716
11
100-01254_000