#SLA-60 R.8 March 2022
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
FRAMING
15
3.6 Vent Termination Framing
IMPORTANT: Vent cap location must be in compliance with Section 6.2
Minimum Termination Clearances on page 24.
WARNING: DO NOT RECESS THE VENT CAP INTO WALL OR SIDING.
3.6.1 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.
3.6.2 Horizontal Terminations
IMPORTANT: Horizontal vent sections require 1/4” (6 mm) rise for every
12” (305mm) of travel.
IMPORTANT - METAL FAB VENT SYSTEM : When installing Metal Fab
vent pipe, an adapter must be used. This will increase the minimum
height for the center of the vent pipe by 3-1/4” (83mm) when framing
the wall pass through.
NOTE: Kozy Heat’s #800-WPT3, or wall thimble products that comply
with the required 1” (25mm) clearance to combustibles must be
installed for all horizontal vent (rigid or flexible) 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.
•
Rigid pipe dimensions are tested with listed Simpson DuraVent
5” x 8” coaxial pipe venting system ONLY.
•
Flexible pipe framing dimensions are tested with Kozy Heat #800
Series Flexible Vent System. See the drawing below.
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. A minimum of 1”
(25mm) on all sides of the horizontal pipe at the wall pass-
through must be maintained.
3. Follow the vent pipe manufacturer’s installation instructions for
vent installation.
Figure 3.5, Minimum Horizontal Termination Framing
10
¾”
(273mm)
11”
(279mm)
5
7⁄16” (138mm)
Required Wall Pass Through
Framing for 1” (25mm) Clearance
(shown with #800-WPT3)
