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Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
FLUE
RESTRICTOR
Pilot Shield Adjustment
Note: When venting this unit with high vertical (8 feet or
more) with very little horizontal the pilot shield will need to
be bent down in the closed position as shown in Figure 9.
Figure 9
PILOT SHIELD
PILOT
BRACKET
PILOT SHIELD SHOULD BE
CLOSED AND TOUCHING
THE PILOT BRACKET
Figure 10
Note: When venting this unit with long horizontal runs
and/or multiple elbows, the pilot shield will need to be in
the opened position as in Figure 10.
PILOT SHIELD
BEND PILOT SHIELD UP 3/8”
TO ALLOW AIR FLOW TO
FEED THE PILOT FLAME
Flue Restrictor Instructions
1. Locate the flue restrictors inside the unit to the left of the
control panel. There are two each of 1-1/4” diameter and
1-1/2” diameter. Use the following table to determine which
restrictors to use for the vent run.
2. See Figure 7 for restrictor installation. Insert each restric-
tor in one of the 3” exhaust collars as shown.
Figure 8. Flue Restrictor
Figure 7
FLUE
RESTRICTOR
Figure 6.
Straight Up Vertical Venting
STRAIGHT UP
VERTICAL VENTING
V (FT.)
40' MAX. (12.4 M)
NOTE: On vertical venting
configurations install the
vertical baffle found in your
manual bag per the flue
restrictor instructions in
this section.
CAP
V
15’-30’ 30’-40’
NG 1-1/2” & 1-1/2” 1-1/2” & 1-1/4”
LP 1-1/2” & 1-1/2” 1-1/4” & 1-1/4”
Vent Run
Vertical
1-1/4” & 1-1/2”
DIAMETER
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