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12 <br /> 3.2 OUTSIDE COMBUSTION AIR <br /> EN Insulating the intake liner is recommended in colder <br /> climates to prevent condensation from occurring. <br /> The Napoleon Model NZ8000 takes outside air directly <br /> into the appliance through the opening on the left side. <br /> The fresh air inlet duct and hood must be installed lower <br /> than the firebox.Secure and seal the intake liner to the <br /> collar using 3 sheet metal screws,and high temperature <br /> sealant. r4 :2 1 <br /> (I , <br /> \lllllllllllh��� <br /> rel ' <br /> . fy <br /> The duct inlet must be located so they can not be blocked(i.e. snowdrifts). 12" (305mm)above grade is <br /> recommended. Make a 4''/2"(114mm)inch hole to suit in an outside wall of the house. From outside, place the <br /> fresh air hood into the hole,open side down.Seal with caulking and secure. <br /> W415-1642/04 15 16 <br />