Rough Framing
SECTION 3
FRAMING
#BHM-38 & #BHM-38-BW
R.1 September 2021
16
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
3.5.2 Rough-in Vent Termination
Natural Draft Installations
The following information applies to all standard, Komfort Zone Kit,
and vented cavity design options when venting with natural draft. If
using Koxy Power Vent
#KPV, please reference the manual included
with the kit.
3.5.2.1 Requirements
This is a cold air transfer area. The fireplace enclosure 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.
Exterior vent termination location must be in compliance with
section
6.0, TERMINATION LOCATIONS
on page 44.
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 for horizontal terminations.
3.5.2.2 Clearances
•
A minimum of 1” (25mm) clearance on all sides of the vertical
vent pipe must be maintained.
Refer to
FIGURE 3.6 below for the following clearances
.
•
A minimum of 1” (25mm) clearance from the top surface on the
horizontal pipe must be maintained.
•
A minimum of 1” (25mm) clearance on the sides and bottom
surfaces on the horizontal pipe must be maintained.
•
A minimum of 17-1/8” (435mm) clearance from any venting to
the enclosure top is required in all horizontal vent termination
installations. The horizontal pipe after the wall pass-through
must maintain a 1” (25mm) clearance to combustibles on all
surfaces of the pipe.
22”
(558mm)
17
1⁄8
”
(435mm)
88”
(2235mm)
17
1⁄8
” (435mm) minimum
clearance between any
venting and the top of
enclosure is required in
all horizontal vent
termination installations
FIGURE 3.6
Rough-in Clearances for Minimum Horizontal Terminations
ALL DESIGN OPTIONS INSTALLATION
Nominal 2”x 4” framing used in enclosure framing