#SLA-60 R.8 March 2022
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
VENTING
25
7.0 VENTING
7.1 Approved Vent Systems
This appliance is equipped for use with a 5” (127mm) exhaust by 8”
(203mm) air intake co-axial vent pipe system.
This appliance is approved for use with Kozy Heat 5” (127mm) x
8” (177mm) #800 Series Flexible Direct Vent System (horizontal
terminations only). Refer to Section 7.7 #800-1 Series Direct Vent
Termination Kit(s) on page 29.
Other approved vent manufacturers (horizontal and vertical
terminations): American Metal Products (Ameri-Vent), BDM, ICC, Metal
Fab*, Olympia Chimney Supply, Inc., Selkirk, and Simpson DuraVent.
*WHEN INSTALLING METAL FAB VENT SYSTEM
with this appliance
an adapter must be used. Use adapter part number 5DDA.
Refer to the vent manufacturer’s installation manual for complete
installation instructions. Vent installation must conform with venting
requirements and restrictions as outlined in this manual.
7.2 Venting Requirements
Consult the local and national installation codes to assure adequate
combustion and ventilation air is available. Venting requirements
apply to both natural gas and Propane.
•
Flame height and appearance will vary depending upon venting
configuration and the type of fuel used.
•
A minimum of 1 in (25 mm) clearance on all sides of the
vertical vent pipe must be maintained. Attic insulation shields
may be insulated using unfaced insulation products listed as
noncombustible per ASTM E 136.
•
A minimum of 1 in (25 mm) clearance on all sides of the
horizontal vent pipe at the wall pass-through must be
maintained. Wall thimble products that comply with the required
1 in (25 mm) clearance to combustibles must be installed for all
horizontal vent runs that pass through interior or exterior walls.
These wall thimble products may be insulated using unfaced
insulation products listed as noncombustible per ASTM E 136.
•
Natural gas and propane vent installations terminating with
a snorkel cap require a minimum of 24 in (610mm) of vertical
venting off the top of the appliance before the use of an elbow.
•
The vertical vent heat shield MUST be installed for every type
of venting application. The horizontal vent heat shield must be
installed when incorporating minimum horizontal venting.
•
Provide a means for visually checking the vent connection to the
appliance after the fireplace is installed.
7.3 Elbows
•
MAXIMUM NUMBER OF 90° ELBOWS: 5
•
For each additional 90° elbow used after the first elbow, 3 ft (91.4
cm) must be subtracted from maximum venting allowed.
•
For each 45° elbow used, 1½ ft (457 mm) must be subtracted
from maximum venting allowed.
•
(2) 45° degree elbows may be used in place of (1) 90° elbow.
7.4 Restrictor Plate Assembly
and Installation
A restrictor plate (included in components packet) may be used
to achieve desired flame appearance on any venting installation
with at least 8 ft (2.4 m) of vertical pipe or more. Section 11.2.2 Vent
Restriction on page 45 outlines restrictor plate recommendations
depending on burner flame appearance, and instructions on
installation after venting is completed.
Restrictor Plate
Remove innermost circle
to create less restriction
Remove all inner rings for
the least restriction
Bend tabs to approx. 80˚ angles to create
tension to hold itself in place when installed
SLIDE RESTRICTOR INTO EXHAUST PIPE ON TOP OF FIREPLACE
WITH TABS FACING TOWARDS YOU PRIOR TO ATTACHING VENTING
Figure 7.1, Restrictor Assembly and Installation
