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English 3
Ducting Recommenda-
tions
The hood can be ducted to the outside or used with a recirculation unit. The recir-
culation unit is available from your dealer.
For the most efficient air flow exhaust, use a straight duct run or as few elbows as
possible.
Do not use flex ducting. Always use metal ductwork with minimum diameter of 6”
(150 mm). A transition is necessary to connect to larger diameter ductwork or to
square ductwork.
COLD WEATHER installations should have an additional backdraft damper
installed to minimize backward cold air flow and a nonmetallic thermal break to
minimize conduction of outside temperatures as part of the ductwork. The damper
should be on the cold air side of the thermal break. The break should be as close
as possible to where the ducting enters the heated portion of the house.
Always install a metal vent cover where the ductwork exits the house.
Make-Up Air: Local building codes may require the use of make-up air systems
when using ducted ventilation systems greater than specified CFM of air move-
ment. The specified CFM varies from locale to locale. Consult your HVAC profes-
sional for specific requirements in your area.
Overall Dimensions The overall dimensions are:
• Width: 35 1/2" (900 mm); 30” (760 mm)
• Depth: 20 1/2" (520 mm)
• Height: 28-43” (715-1100 mm), depending on chimney extension
Mounting Requirements The hood must be mounted through the back wall. It cannot be mounted from
above. See “General Information” on page 2 for suggestions for determining hood
height.
For safety purposes, the wall must be able to support three times the weight of the
hood. See “Minimum Weight Requirements” on page 3 for the minimum amount
of weight the wall must support. Note: At least one screw must be installed
through a stud.
Figure 1: Overall Dimensions
30" / 35 1/2"
(760 mm / 900 mm)
20 1/2"
(520 mm)
28-43"
(715-1100 mm)
Table 1: Minimum Weight Requirements
Size With Recirculation Kit Without Recirculation Kit
30” (760 mm) 189 lbs. (85.5 kg) 152 lbs. (69 kg)
36” (900 mm) 202 lbs. (91.5 kg) 167 lbs. (75.5 kg)