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Outside Air
Hood
2 Wire Ties
Flexible Duct
(not supplied)
Figure 7.5 Outside Air Installation
E. Install Outside Air Kit
• Keep duct runs short and straight to minimize
restriction.
• The outside air kits must be installed on both sides of the
fi replace.
WARNING! Outside air kits must be installed on both
sides of the fi replace to prevent overheating and fi re.
• Locate the outside air hoods in a clear area.
• Install as shown in Figures 7.3, 7.4 and 7.5.
• The air ducts may be run vertically.
• The outside air hoods must be at least 3 ft (.91 m) below
the top of the uppermost chimney section.
• The outside air hoods can be painted to match/accent the
color of the structure.
CAUTION! Risk of Fire or Asphyxiation! Do not draw
outside combustion air from wall, fl oor or ceiling cavity,
or enclosed spaces such as an attic or garage.
• DO NOT place outside air hood close to exhaust
vents or chimneys. Fumes or odor could be drawn
into the room through the fi replace.
• Locate outside air hood to prevent blockage from
leaves, snow/ice, or other debris. Blockages could
cause the unit to overheat.
NOTICE: The fireplace provides some outside air for
combustion. Other methods may be necessary if more air
is required.
Heat & Glo • RUTHERFORD-42 • 4059-309 Rev G • 11/08