Heat & Glo MEZZO36 Installation Manual page 22

Exhaust restrictor Instructions
Exhaust restrictors are recommended for these vertically
terminated products which have excessive draft. Exhaust
restrictors will compensate for high draft, and restore vi-
sual fl ame height. If the vent confi guration has a total ver-
tical of 20-50 feet, an exhaust restrictor may be needed.
The exhaust restrictor can be located in the appliance
manual bag.
Exhaust restrictor: MEZZO36, MEZZO48
1. Locate the two pilot holes in the inside fi rebox cham-
ber as shown in Figure 4.9.
2. Break the fl ue restrictor into two pieces. Do this by
bending the part back and forth until it breaks. See
Figure 4.10.
3. The setting for MEZZO36, MEZZO48 is 2-2. Align
the holes marked "2" on the numbered exhaust re-
strictor piece with the hole on the other exhaust re-
strictor piece. See Figure 4.11. Align the exhaust re-
strictor pieces with the pilot holes in the inner fi rebox
chamber. Use two 1/2 inch self-piercing screws to
secure vent restrictor to fi rebox heat shield.
4. In some applications, such as those where the fi re-
place is elevated off the fl oor, the exhaust restrictor
may be painted, but painting is not required.
NOTICE: Before painting, contact your dealer for
information on the appropriate high temperature paint.
Exhaust restrictor: MEZZO36ST, MEZZO48ST
1. Break the fl ue restrictor into two pieces. Do this by
bending the part back and forth until it breaks. See
Figure 4.10.
Note: The MEZZO36ST and MEZZO48ST do not have
pilot holes for the exhaust restrictor in the fi rebox chamber.
2. The setting for MEZZO36ST and MEZZO48ST is a
2.5 inch setting, or 2-2. Align the holes marked "2"
on the numbered exhaust restrictor piece with the
hole on the other exhaust restrictor piece. See Fig-
ure 4.11. Center the exhaust restrictor on the vent
and secure in place with two 1/2 inch self-piercing
screws.
3. In some applications, such as those where the fi re-
place is elevated off the fl oor, the exhaust restrictor
may be painted, but painting is not required.
NOTICE: Before painting, contact your dealer for
information on the appropriate high temperature paint.
Heat & Glo • MEZZO36, MEZZO36ST, MEZZO48, MEZZO48ST Installation Manual • 2300-970 Rev. D • 6/14
22
PILOT
HOLES
EXHAUST
RESTRICTOR
Figure 4.9 Exhaust Restrictor
BREAK
HERE
Figure 4.10 Break the Exhaust Restrictor
Figure 4.11 Set the Exhaust Restrictor
1 2 3 4 5
SETTING
1 2 3 4 5