Install Outside Air Kit - Heatilator BIR42-B Owner's Manual

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
fireplace.
WARNING! Outside air kits must be installed on both
sides of the fireplace to prevent overheating and fire.
• 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, floor 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 fireplace.
• 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.
Heatilator • Birmingham BIR42-B • 4059-681• 11/11
Flexible Duct
(not supplied)
Outside Air
Hood
2 Wire Ties
Figure 7.5 Outside Air Installation
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