Heatilator GCBC36LE Installation Instructions Manual page 8

e. Check Venting System. Check the venting system
to assure proper operation. This can be done with a
match while the unit is operating.
Hold a lighted match at the bottom edge of the drafthood
opening. If the flames and smoke remain upright, venti-
lation is acceptable. If the flames and smoke are drawn
into the drafthood, this means ventilation is good. If the
flames and smoke are forced away from the drafthood,
this may indicate a ventilation blockage or down draft
resulting in gas spillage into the home. if this occurs,
turn off the fireplace and do not burn it until it has been
inspected by a qualified service person. See Figure 8.
Figure 8
Testing Ventilation
12-97
Flame Up
Acceptable
Flame In
Good
Flame Out
Unacceptable
f. Outside Air Kit Installation. An outside air kit is
available as an optional feature with this fireplace. An
outside air kit helps to decrease the amount of room
air taken, by utilizing outside air for combustion. It is
strongly recommended that it be installed.
The outside air kit can only be installed on the left
side.
To install the outside air kit, refer to the installation
instructions provided with the kit.
Note: The outside air kit can termination at any
level with the exception that it must terminate at
least one foot below the vent terminal cap.
8i 28887A