Outside Air Installation - Vermont Castings Dauntless FlexBurn Installation Manual

Figure 5.7
E. Outside Air Installation
A source of air (oxygen) is necessary in order for combustion
to take place. Whatever combustion air is consumed by the
fire must be replaced. Air is replaced via air leakage around
windows and under doors. In homes that have tightly sealed
doors and windows, an outside air source is needed. An
Outside Air box is installed from factory to accommodate
outside air. An optional outside air kit is available
Items Needed for Installation (not supplied)
• Phillips head screw driver
• Wire ties
• Plastic outside air vent
• 3" Flex or Rigid Duct
• 3" Outside Air Termination Cap with Screen
• Silicone sealant
• Drills and saws necessary for cutting holes through
the wall or flooring in your home.
1. Remove all materials from packing box.
2. Using a #2 Phillips screw driver attach the flex adapter to
the appliance using 4 screws. Figure 5.8 & 5.9.
3. Floor & Rear Installation: Cut a 3" (76 mm) hole in outside
wall or floor to accommodate outside air piping. Use 3"
(76 mm) aluminum metal flex or rigid piping to directly
connect outside air to appliance intake. Use the supplied
termination cap with a rodent screen. Seal between the
wall (or floor) and the pipe with silicone to prevent moisture
penetration.
20
Heat Shield
Flue Collar
Rear Heat Shield Cover
Remove Knockout
Vermont Castings • Dauntless FlexBurn Installation Manual_R8 • 2020 - ___ • 11/21
Figure 5.8 - Rear Installation
Figure 5.9 - Floor Installation
!
Fire Risk - Asphyxiation Risk
Do not draw outside combustion air from:
• Wall, floor or ceiling cavity
• Enclosed space such as an attic or garage
• Close proximity to exhaust vents or chimneys
Fumes or odor may result
Outside air inlet must be located to prevent blockage
from Leaves, Snow or ice, Other debris. Blockage may
cause combustion air starvation.
• Fire will not burn properly
• Smoke spillage occurs when door is opened due to
air starvation
WARNING
3-90-586000i