1.0 Introduction
1.1 Kit Contents
The Kozy Heat Interior Heat Transfer Kit (#HTK-INT) is de-
signed to mount inside of the house and transfer heat to
different room(s), or locations within a room.
The following model(s) allow a maximum installation of two
interior heat transfer kits: #ABY, #ALP-36S, #BHM-38, #BHM
-38-BW, #BHM-44, #BHM-44-BW, #BHM-52, #BHM-52-BW,
#CAR-39, #CAR-46, #CLW-40, #CLW-50, #CLW-50-MV, #CLW
-72, #CLW-ST, #NDK-60TL, #SFD-36, #Z42, and #Z42-CD.
Fan assembly must be installed on interior walls or ceiling
only. Installation in the floor is not recommended. Fan
wheel must be installed in the horizontal plane. Do not in-
stall with fan axis mounted vertically.
Amount of heat delivered depends on many factors such as:
•
Length, type, and location of pipe (avoid running pipe
through unheated areas - insulate pipe if doing so).
•
Number of elbows.
•
Duration of fireplace operation.
•
Elevation of fan relative to heater (note: using the re-
mote fan will affect the heat output at the fireplace).
1.2 Installation
1.2.1 Installation Precautions
This device must be installed by a qualified installer in ac-
cordance with these instructions and in accordance with
local codes, if any, and with National Electrical Code ANSI/
NFPA 70, current edition.
The #HTK-INT fan will generate sound during operation. The
effects of the increased sound level can be minimized with
careful planning during installation of the system.
CAUTION: Wear protective gloves and safety gloves during
installation. Sheet metal edges are sharp.
Disconnect electrical power supply before performing any
maintenance, repair, or electrical wiring.
WARNING: Failure to install, operate, and maintain the inte-
rior heat transfer system in accordance with manufacturer's
instructions will result in conditions which may produce
bodily injury and/or property damage.
HTK-INT
1.2.2 Installation Guidelines
NOTE: Support duct at intervals of no greater than 4 feet,
with no more than 1/2" sag between supports as required
by local code.
Do not substitute any other duct work as a replacement for
the provided insulated flexible duct.
Minimum Duct Run Length:
•
3 ft (914mm)
Models: #ALP-36S, #BHM-38, #BHM-38-BW, #BHM-44,
#BHM-44-BW, #BHM-52, #BHM-52-BW, #CAR-39, #CAR-46,
#CLW-40, #CLW-50, #CLW-50-MV, #CLW-72, #CLW-ST,
#NDK-60TL, & #SFD-36
•
8 ft (2.4m)
Models: #ABY, #Z42, & #Z42-CD
Maximum Duct Run Length:
•
25 ft (7.8m)
Models: All approved models
Clearance to flexible duct:
•
0 in (0mm)
IMPORTANT: The insulated flexible pipe is zero clearance
to combustible but CANNOT be compressed into a smaller
diameter.
1.2.3 Painting Requirements
The #HTK-INT air grille may be painted to a desired color, as
long as the paint selected has sufficient temperature and
environmental ratings.
•
Thoroughly sand the existing coating prior to painting
with sandpaper or steel wool.
•
The front of the air grille may be field-painted and
cured up to 250 degrees Fahrenheit (121°C).
3
Rev. 14 — April 2024