10
27847 Rev H
08/04
HST-38 SERIES INSTALLATION INSTRUCTIONS
WARNING!
Do not draw outside air from garage spaces. Exhaust products of gasoline engines are hazardous.
Do not install outside air ducts such that the air may be drawn from attic spaces, basements or above the
roofing where other heating appliances or fans and chimneys exhaust or utilize air. These precautions will
reduce the possibility of fireplace smoking or air flow reversal.
WARNING!
To prevent contact with sagging or loose insulation, the fireplace must not be installed against vapor barriers
or exposed insulation. Localized overheating could occur and a fire could result.
These are
rough
framing
dimen-
sions only.
Figure 2 - Fireplace Locations
1. Fireplace Locations and Space Requirements
It is important to note that certain see-through fireplace installations are more susceptible to smoke spillage than
others. Rooms of greatly unequal air volumes that are separated by a see-through fireplace, rooms with cathedral
ceilings and rooms connected by long passageways will create conditions where unequal air pressures will cause a
see-through fireplace to vent improperly. Glass doors may have to be operated in the closed position to minimize
smoke spillage. The fireplace may be located as shown in Figure 2, depending on your fireplace. This fireplace may
be used as a room divider or installed along a wall.
D. PRE-INSTALLATION PREPARATION
Figure 2 shows the minimum distance to combustible surfaces for side walls and for walls facing the fireplace openings,
as well as minimum hearth extension dimensions.
CLEARANCES!
A minimum 1/2 in. air
clearance must be
maintained at the sides of the
fireplace assembly.
Chimney sections at any level
require a 2 in. minimum air
space clearance between the
framing and chimney section.