970 Heat Duct Kit; Kit Components; Specifications - kozy heat Z-42 Installation And Operation Manual

4.0 #970 HEAT DUCT KIT

CAUTION : Read and follow instructions carefully prior to and during
the installation of the optional heat duct kit.
WARNING: Installation of this heat duct kit and its electrical wiring
must be performed by a qualified service person, and must be in
accordance with local codes, or in the absence of local codes, with the
National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical
Code, CSA C22.1.
Do not substitute the flexible heat duct pipe with plastic vent pipe.

4.1 Kit Components

NOTE: A junction box, cover, and hardware must be purchased to
mount the speed control.
(1) 6" (152 mm) diameter flexible heat duct
pipe, expandable to 20 ft. (6.10 m)
(1) Register mounting frame with collar
(1) Register cover with screws
(1) Duct collar
(1) Fan assembly
(1) Fan housing cover plate
(1) Speed control mounting bracket
(1) Speed control
Figure 4.1
18 #970 HEAT DUCT KIT
(2) Mounting brackets
(11) Sheet metal screws
(4) Sheet rock screws
(3) Flange nuts
(1) Strapping cord
(3) Wire nuts
(2) Fan wire connectors
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces

4.2 Specifications

• The appliance is manufactured with (2) heat duct knock-outs.
One, or both, may be utilized.
• The register mounting frame is designed to fit between 2" x 4"
stud walls, 16 in (406mm) on center.
• An oval duct pipe (equivalent to 6 in [152 mm] round) can be
used in conjunction with the included 6 in (152 mm) diameter
flexible heat duct pipe, included with this kit. It must be
purchased from a HVAC supplier.
• Carefully plan location of duct pipe runs and register in relation
to fireplace.
Table 4.1, Heat Duct Clearances
From flexible duct to combustibles
From air duct to ceiling
Table 4.2, Heat Duct Vent Runs
Vent Run Minimum
Any direction, including
downward
0 in 0 mm
2 in 51 mm
Maximum
2 ft 609 mm 20 ft 6.1 mm
#Z-42 & #Z-42-CD R.15 November 2019