Flue Damper; Outside Air; Glass Doors - Heat & Glo HST-42D Owner's Manual

1. Flue Damper

Refer to Figure 3.2 for location and operation of con-
trol.
Before lighting the fi replace, verify fully open position
by looking up from the inside of the fi replace.

2. Outside Air

Refer to Figure 3.2 for location and operation of control.
The outside air kit supplies some combustion air for
your fi replace. It may help reduce the effects of nega-
tive air pressure.
Close the inlet to prevent cold drafts when the fi replace
is not being used
CAUTION!
Outside air control handle may be warm.
Adjust before lighting fi re.
10 Heat & Glo • HST-42D Owner Manual • 4012-065 • Rev D • 11/13/13

3. Glass Doors

• Glass doors are optional.
• Refer to Figure 3.3 for how to properly use them.
FULLY OPEN
CORRECT
FULLY CLOSED
CORRECT
Figure 3.3 Operating Positions of Bi-fold Doors
PARTLY OPEN
INCORRECT
PARTLY CLOSED
INCORRECT