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3.7 Vent Termination Framing
IMPORTANT: Vent cap location must be in compliance with Section 6.2
Minimum Termination Clearances on page 21.
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 to maintain clearance
requirements.
Kozy Heat's #800-WPT series, or wall thimble products that comply
with the required 3 in (76 mm) top 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.
1.
Measure from floor level of the fireplace to the center of where
the vent pipe will penetrate the wall.
2.
Cut and frame an opening in the wall to allow the vent system
to run level through the wall pass-through. This wall pass-
through must be fully lined with insulation products listed as
noncombustible per ASTM E 136. A minimum top clearance of
3 in (76 mm) and a minimum 1 in (25 mm of the horizontal vent
pipe at the wall pass-through must be maintained.
3.
Follow the vent pipe manufacturer's installation instructions for
vent installation.
#CLW-50 R.1 March 2018
Figure 3.5, Vent Termination Locations
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
NATURAL GAS AND PROPANE FLEXIBLE PIPE
HORIZONTAL TERMINATION
22"
(559mm)
STEEL
FRAMING
(1067mm)
NATURAL GAS AND PROPANE RIGID PIPE
MINIMUM HORIZONTAL VENTING (NO VERTICAL VENTING)
22"
(559mm)
STEEL
FRAMING
(873mm)
NATURAL GAS AND PROPANE RIGID PIPE
MINIMUM HORIZONTAL VENTING (45˚ VERTICAL ELBOW)
22"
(559mm)
STEEL
FRAMING
(1137mm)
42"
⁄
34
"
¾
44
"
FRAMING 15
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