Approved Vent Systems
SECTION 7
VENTING
#SFD-36
R.6 February 2022
30
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
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” (203mm) #800 Series Flexible Direct Vent System (horizontal
terminations only). Refer to Section
on page 41 for venting
components and installation instructions.
Vertical 5” x 8” co-axial flexible vent pipe with vertical terminations are
not approved for use with this fireplace.
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.
The following 5” x 8” termination caps are not allowed: BDM 940285
Round and 94040836 Snorkel; Simpson DuraVent 58DVA-H2, 58DVA-
H2-SNK14, 58DVA-H2-SNK36
This appliance may be reduced from a 5” x 8” to a 4” x 6-5/8” vent
system using a vent reducer.
See Section
The following 4” x 6-5/8” termination caps are not allowed: Simpson
DuraVent 46DVA-H2, 46DVA-H2-SNK14, 46DVA-H2-SNK36
This appliance can be adapted to use 4” diameter aluminum flexible
pipe with a 4” x 6-5/8” reducer when used in combination with an
existing minimum 7” ID Class A metal chimney. See
This appliance can be adapted to use 3” x 3” flexible co-linear vent
pipes with a 4” x 6-5/8” reducer when used in combination with an
existing minimum 6” x 8” ID masonry or 7” ID Class A metal chimney.
See Section
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
NOTE: 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.
IMPORTANT: The vertical vent heat shield must be installed for all
venting applications and figurations. The horizontal heat shield
must be installed for minimum horizontal venting. See section
•
Flame height and appearance will vary depending upon venting
configuration and the type of fuel used.
•
Provide a means for visually checking the vent connection to the
appliance after the fireplace is installed.
•
A minimum of 1” (25mm) clearance on all sides of the vertical
vent pipe (for both 5” x 8” and 4” x 6-5/8” installations) must
be maintained. Attic insulation shields may be insulated using
unfaced insulation products listed as noncombustible per
ASTM E 136.
•
A minimum of 1” (25mm) clearance on all sides of the horizontal
vent pipe at the wall pass-through must be maintained
(
for both 5” x 8” and 4” x 6-5/8” installations)
. Wall thimble
products that comply with the required 1” (25mm) 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. If using 4” x 6-5/8”
reducer, follow vent pipe manufacturer’s wall thimble installation
instructions.
