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3.7 Vent Termination Framing
IMPORTANT: Vent cap location must be in compliance with Section 7.2
Minimum Termination Clearances on page 26.
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: 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.
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.
#SLA-42S R.7 December 2018
Figure 3.6, Minimum Horizontal Termination Framing
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
MINIMUM RIGID VENT PIPE TERMINATION
NATURAL GAS
19"
(483mm)
48"
(1219mm)
MINIMUM RIGID VENT PIPE TERMINATION
PROPANE
19"
(483mm)
½
52
"
(1334mm)
MINIMUM HORIZONTAL FLEX VENT PIPE TERMINATION
NATURAL GAS AND PROPANE
19"
(483mm)
56"
(1422mm)
FRAMING 15
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