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Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
22
D. Installing Flue Restrictors
Locate the flue restrictor and two screws inside the manual
bag. Use the following table to determine which restrictors
to use for the vent run.
Vent Run Vertical
15 ft. - 50 ft.
Cerona-36
NG 1-1/4
Cerona-42 NG 1-1/4
Figure 7.5
• Attach the left and right side pieces to the framing mem-
bers. (See Figure 7.3).
• Use a wet or dry towel or soft brush to remove dust or
dirt from facing material.
• Apply a non-combustible adhesive to attach tile, stone
or other non-combustible finishing materials per
manufacturer’s instructions.
Figure 7.4 Complete Installation of Non-combustible
Facing Material
AB
Cerona-36
in. 43-5/8 50-3/16
mm 1108 1275
Cerona-42
in. 50-5/8 54-3/8
mm 1286 1381
A
B
NON-COMBUSTIBLE
FACING MATERIAL
1 in.
(25 mm)
BOTTOM
OF FIREPLACE
TOP OF
FIREPLACE
EXHAUST
COLLAR
EXHAUST
PORT
SCREWS
FIREBOX
FLUE
RESTRICTOR
FLUE
RESTRICTOR
FLAPPER
DOOR
FLAPPER
DOOR
EXHAUST
COLLAR
EXHAUST
PORT
SCREWS (2)
Mount the flue restrictor above the flapper door using two
screws (see Figure 7.5).