Heatilator • GDST4336I, GDFL4136I, GDCR4136I, GDCL4136I • 2129-900 Rev. F • 11/0830

V1 = 60 ft. Max. (18.3 m)

V1 = 3 ft. Min. (914 mm)

2. Top Vent - Vertical Termination

No Elbow

NOTE: If installing a vertical vent/
termination off the top of the appli-
ance, the optional vertical termina-
tion baffl e should be used.
V1
Figure 7.7
Exhaust restrictors are recommended for these verti-
cally terminated products which have excessive draft.
Exhaust restrictors will compensate for high draft, and
restore visual fl ame height. If the vent confi guration has
a total vertical of 15-44 feet, an exhaust restrictor may
be needed. The exhaust restrictor can be located in the
appliance manual bag.
Exhaust Restrictor Instructions
1. Remove refractory panel and exhaust baffl e from pilot
side of appliance. Use a 1/4 inch nut driver and remove
the two screws that secure it in place. To remove the
exhaust baffl e, remove the three screws securing the
refractory panel in place. See Figure 7.8.
Refractory Panel
Toaccess the
exhaust opening,
remove therefractory
panel and exhaust baffle.
To remove refractory
panel, remove the two
screws on top. To remove
the exhaust baffle, remove
the three screws securing it.
TopVentApplication
Exhaust restrictor
RearVent Application
Note:Be sure to re-
install the exhaust
baffle and refractory
panel after exhaust
restrictorinstallation.
Exhaust restrictor
Note:Be sure to re-
install the exhaust
baf f l e a n d refractory
panel after exhaust
restrictorinstallation.
Figure 7.8