32
VENTING
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
#BAY-41-G R.9 Sept 2018
7.8 #700-2 Series Direct Vent
Termination Kit(s)
IMPORTANT: The flex pipe is permanently attached to the exterior plate.
DO NOT ATTACH either #745-2 or #718-2 termination kit to fireplace (or
extension kit) until it has passed through the wall. Install termination
plates to the outside wall exterior.
IMPORTANT: The minimum bend radius to center is 6 in (152 mm)
required for installation of the flexible vent pipe. Care should be taken
when installing to avoid a tight bend that may cause abrasion or
damage to the flexible pipe.
•
If terminating against vinyl siding, a vinyl siding protector must
be used (included with the #745-2 and #718-2 direct vent kits).
Follow instructions included.
•
Each #746-2 extension kit contains enough 4” & 7” flexible
aluminum pipe to extend chimney an additional 6 ft (1.83 m).
7.8.1 Assembly and Installation
1. Attach vinyl siding protector (G) (not shown).
2. Mount the required wall thimble (H) with 1 in (25 mm) top
clearance and 1 in (25 mm) side clearance to the exterior wall,
and seal.
(OPTIONAL) insulate the wall thimble with any unfaced
insulation products listed as non-combustible per ASTM E 136.
3. Apply a liberal bead of exterior sealant around outer edge of
termination box (A). Place assembly through the wall-pass
through in exterior wall, and secure with (4) screws through the
four holes (B).
4. Form the 4” & 7” flexible aluminum pipes on termination kit
(#745-2 or #718-2), and if applicable, on each extension kit.
5. Gently pull 4” & 7” pipes down to the top of the fireplace, or if
applicable, the extension kit.
IMPORTANT: DO NOT stretch extension kit beyond 6 ft. (1.83
m); DO NOT stretch beyond what is required. It is very difficult
to decompress flex pipes once stretched.
6. Place a bead of sealant outside 4” flex pipe collar (C) (end with
EXTERNAL LIP) and sliding the collar into 4” pipe on extension kit
or top of fireplace (D). Secure with 3 evenly spaced screws.
7. Place a bead of sealant inside 7” flex pipe collar (E) (end with the
INTERNAL lip), sliding the collar over 7” pipe on top of fireplace
(F). Secure with 3 evenly spaced screws.
8. If additional extension kits are required, repeat Steps 4 and 5,
placing 4” & 7” pipes onto previous extension kit.
LEGEND
A
Termination box
B
Holes in exterior wall plate (only 3 shown)
C
4” flex pipe collar (not shown)
D
4” pipe on fireplace or extension kit (not shown)
E
7” flex pipe collar
F
7” pipe on fireplace or extension kit
G
Vinyl firestop (not shown)
H
Wall Thimble with 1 in (25 mm) top clearance
A
B
E
F
H
STAND-OFFS
#700-WPT
Figure 7.5, Installation and Assembly of #700-2 Series
