#BAY-41-LE R.5 July 2019
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
FRAMING
15
3.7 Vent Termination Framing
IMPORTANT: Vent cap location must be in compliance with Section 6.2
Minimum Termination Clearances on page 27.
WARNING: DO NOT RECESS THE VENT CAP INTO WALL OR SIDING.
3.7.1 Vertical Terminations
CAUTION: Cold air transfer area. The surround fireplace chase
must comply with all clearances as outlined in this manual, and be
constructed in compliance with local building codes. Outside walls
should be insulated to prevent cold air from entering room.
•
Follow vent pipe manufacturer’s installation instructions for
vertical terminations.
•
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 non-combustible per ASTM E 136.
3.7.2 Horizontal Terminations
IMPORTANT: Horizontal vent sections require 1/4 in (6 mm) rise for
every 12 in (305 mm) of travel.
NOTE: Elbows listed with approved vent systems for this appliance vary
in vertical length. Please consult the vent manufacturer’s instructions
to determine the elbow dimension used for installation. Adjust the wall
pass-through rough opening dimensions as necessary to maintain
clearance requirements.
NOTE: Wall thimble products that comply with the required 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.
•
A minimum of 1” (25mm) clearance to combustibles is required
on the top, bottom, and sides of the horizontal flexible vent pipe.
•
A minimum of 1-1/2” (38mm) top clearance and a minimum of 1”
(25mm) bottom and side clearances to combustibles is required
for horizontal rigid pipe.
1. Measure from floor level of the fireplace to the center of where
the vent pipe will penetrate the wall.
Elbows listed with approved vent systems for this appliance
vary in vertical length. Please consult the vent manufacturer’s
instructions to determine the elbow dimension used for
installation. Adjust the wall pass-through rough opening
dimensions as necessary to maintain clearance requirements.
2. Cut and frame an opening in the wall to allow the vent system to
run level through the wall pass-through.
3. Follow the vent pipe manufacturer’s installation instructions for
vent installation.
Figure 3.5, Horizontal Vent Terminations
28
½
”
(724mm)
49
3⁄8
”
(1254mm)
53
½
”
(1359mm)
17
½
”
(445mm)
17
½
”
(445mm)
17
½
”
(445mm)
MINIMUM HORIZONTAL RIGID PIPE VENTING
TOP VENT NATURAL GAS AND PROPANE
MINIMUM HORIZONTAL RIGID PIPE VENTING
REAR VENT NATURAL GAS AND PROPANE
MINIMUM HORIZONTAL FLEXIBLE PIPE VENTING
TOP VENT NATURAL GAS AND PROPANE
