Ventilation Openings; Outside Combustion Air - Napoleon NZ7000 Installation And Operating Instructions Manual

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3.1.1 VENTILATION OPENINGS

It is recommended to provide air circulation within the enclosure by installing ventilation grilles (minimum
EN
openings of 40 sq. inches (0.03 sq. meters) at both floor and ceiling levels of the enclosure. These grilles must
not restrict the flow of heat by more than 25%. Do not install into any area having a height less than 8 ft (2.4m)
(ceiling of enclosure to appliance bottom, excluding hearth height).
3.2

OUTSIDE COMBUSTION AIR

It is recommended to install outside air to the appliance as this will help to prevent any smoke entering the
living space in homes that experience negative pressures. Check with local authorities having jurisdiction in
your area, as installing outside air to the appliance may be mandatory.
Insulating the intake liner is recommended in colder climates to prevent condensation from occurring.
It is recommended that a dip or loop is put into the duct creating a cold air trap in order to prevent cold air
from flowing into the room when the appliance is not being operated (see illustration below).
The NZ7000 and NZ8000 take outside air directly into the appliance through the opening on the left side.
The fresh air inlet duct and hood must be installed lower than the firebox. Secure and seal the intake liner to
the collar using 3 sheet metal screws, and high temperature sealant.
W415-1676 / B / 10.26.17
DIP
OR
LOOP
The duct inlet must be located
so they cannot be blocked
(i.e. snowdrifts). 12" (30.5cm)
above grade is recommended.
Make a 4 ½" (114mm) inch
hole to suit in an outside wall
of the house. From outside,
place the fresh air hood into
the hole, open side down.
Seal with caulking and secure.