kozy heat KOMFORT ZONE KIT User manual

HUSSONG MANUFACTURING CO., INC.
READ ALL THESE STEPS
BEFORE STARTING INSTALLATION.
LEAVE THESE INSTRUCTIONS WITH THE
APPLIANCE.
This kit must be installed by a qualied installer,
service agency, or gas supplier at the time of
the heater installation. These instructions must
be used in conjunction with the installation and
operation manual provided with the appliance.
Please read the appliance owner’s manual
completely before performing any procedures in
these instructions.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
KOMFORT ZONE KIT
#KZK-1510A
For use with the #BHM-44 and #CLW-50 (Starting
Serial Number: 19 501780 50)
This optional convection duct kit redistributes the
warm air ow away from the replace opening to
a more desirable location using natural convection
without the use of a fan. The warm air ow may be
relocated to a position higher up the wall, out the
sidewalls, or even to an adjacent room. The result
is much cooler wall temperatures above the re-
place opening for locating televisions, artwork, etc.
English and French installation manuals are available through your
local dealer. Visit our website www.kozyheat.com.
Les manuels d’installation en français et en anglais sont disponibles
chez votre détaillant local. Visitez www.kozyheat.com .
Hussong Manufacturing Co., Inc.
P.O. Box 577, 204 Industrial Park Drive
Lakeeld, MN 56150-0577, USA Rev. 4, 8/20
1.0 INTRODUCTION.......................................................................3
1.1 Kit Contents..........................................................................................3
1.4 Fireplace Preparation........................................................................ 3
1.2 Suggested Congurations.............................................................. 4
1.3 Dimensions and Overview .............................................................6
1.5 Air Duct Pipe Run............................................................................... 8
2.0 FRAMING AND CLEARANCES................................................9
2.1 Clearance to Sprinkler......................................................................9
2.2 Framing................................................................................................10
2.3 Shelf Requirements.........................................................................12
3.0 FACING AND FINISHING.......................................................14
3.1 Non-combustible Requirements................................................14
3.2 Combustible Finish..........................................................................16
3.3 Hearth and Mantel Clearances....................................................19
4.0 INSTALLATION .......................................................................21

Komfort Zone Kit #KZK-1510A R.4 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces INTRODUCTION 3
1.1 Kit Contents
ALL kit contents must be installed.
• (2) 15" plenum kit: #KZK-1510A
• (2) air grilles
• (8) 6" collars - (4) to attach to the bottom of the plenum; (4) to
attach to the unit where the cover plates are removed.
(1) KZK-410-6 is used for a 10' vent run. If you are mounting the
plenum above the replace 10' (3m) or less, use (1) #KZK-410-6 kit.
KZK-CPL6 is (6) 6" couplers that connect (2) KZK-410-6. You will only
need (4) 6" couplers for installation. If you are mounting the plenum
above the replace between 10' to 20', you will need (2) KZK-410-6 kit
and (1) #KZK-CPL6 coupler kit.
1.0 INTRODUCTION
15¾”
(400mm)
11¾”
(298mm)
(4) take o collars included
#KZK-1510A
Figure 1.1, #KZK-1510A
Figure 1.2, #KZK-410-6
(4) - 10’x 6” (aluminum ex) listed to UL-181Class 0 Air Duct
#KZK-410-6
Figure 1.3, Stand-o Assembly Installation
Discard header heat shield
Stand-o
assembly
1.2 Fireplace Preparation
1.2.1 BHM-44 Requirements
For ease of installation, the header heat shield may be removed.
The stand-o assembly still must be installed. To install stand-o
assembly,
1. Locate the stand-o assembly and header heat shield on top of
the replace, as shipped.
2. Discard header heat shield.
3. Attach the stand-o assembly pieces as shown below and secure
with (4) screws.

4 INTRODUCTION Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces Komfort Zone Kit #KZK-1510A R.4
1.3 Suggested Congurations
When installing the #KZK-1510A, take in consideration the replace
venting and the plenum tube conguration.
The (2) plenums and the (2) air grilles in this kit are required and both
must be installed.
Figure 1.4, #KZK-1510A Suggested Congurations for CLW-50
#KZK-1510A side wall outlet
#KZK-1510A rear wall outlet
CLW-50

Komfort Zone Kit #KZK-1510A R.4 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces INTRODUCTION 5
Figure 1.5, #KZK-1510A Suggested Congurations for BHM-44
#KZK-1510A side wall outlet
#KZK-1510A rear wall outlet
BHM-44
For side wall outlet installations, it is easier to keep the 1/2”(12mm) clearance if
the center tubes are assembled to the backside of the KZK

6 INTRODUCTION Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces Komfort Zone Kit #KZK-1510A R.4
1.4 Dimensions and Overview
Figure 1.6, #KZK-1510A Dimensions
7⁄”
(198mm)
13½”
(342mm) 3”
(76mm)
12”
(304mm)
5⁄”
(149mm) 8⁄”
(220mm)
4”
(102mm)
6”
(152mm)
1½”
(38mm)
¾
(19mm)
stando
stando
#KZK-1510A

Komfort Zone Kit #KZK-1510A R.4 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces INTRODUCTION 7
1.5 Air Duct Pipe Run
IMPORTANT: The air duct pipe cannot run horizontally without a
vertical rise.
IMPORTANT: The 1/2" clearance around the air duct pipes must be
maintained.
Use #KZK-410-6 UL181 Class 0 Air Duct piping to connect the plenum(s)
to the unit.
Hussong Mfg. requires pipes to be listed as UL181 Class 0 Air Duct to
connect the plenum(s) to the unit.
• Maximum vent run: 20' (6m)
Figure 1.7, Minimum Vent Pipe Run - only (1) plenum shown
WHEN INSTALLING AIR DUCT PIPE MAINTAIN A MINIMUM 4" VERTICAL RISE FOR EVERY 12" HORIZONTAL RUN
12”
(304mm)
4” (102mm)
Minimum bend radius=5” (127mm)
12”
(304mm)
4” (102mm)
Minimum bend radius=6” (152mm)
CLW-50 BHM-44

8 FRAMING AND CLEARANCES Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces Komfort Zone Kit #KZK-1510A R.4
2.0 FRAMING AND CLEARANCES
Figure 2.1, KZK Clearance to Sprinkler
2.1 Clearance to Sprinkler
• In a situation where a sprinkler head is installed within the
proximity to a #KZK discharge opening, the diagram below
MUST be followed.
• The distance between a sprinkler head and discharge opening
cannot be less than 60" (1524mm) in length at every point from
the origin of the discharge opening. You must also verify the
sprinkler head sensor is set to the proper heat setting so it does
not activate when the room heats up from the replace being
operated normally.
• Please follow local building codes to determine what
temperature setting is relevant for your installation.
60”
(1524mm) MIN
3½”
(89mm) MIN
3”
(76mm) MIN
60”
(1524mm) MIN
Ceiling
sprinkler head
Ceiling
sprinkler head
CLW-50
BHM-44

Komfort Zone Kit #KZK-1510A R.4 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING AND CLEARANCES 9
2.2 Framing
Shown in this section are rough opening dimensions and clearances
for the plenums, unit installation, and unit installation with a TV
recess construction.
Rough opening framing dimensions should allow for wall covering
thickness and facing materials.
Figure 2.2, Minimum Clearances for Plenum Air Discharge to Ceiling
3½”
(89mm)
1½”
(38mm)
½”
(12mm)
½”
(12mm)
½”
(12mm)
½”
(12mm)
3”
(76mm)
1½”
(38mm)
Ceiling
Ceiling
CLW-50 BHM-44

10 FRAMING AND CLEARANCES Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces Komfort Zone Kit #KZK-1510A R.4
8¼”
(209mm)
18”
(457mm)
74½”
(1892mm)
66¼”
(1683mm)
76”
(1930mm)
22”
(558mm)
STEEL
FRAMING
Plenum rough opening
Height and Width Unit and plenum
side view
CLW-50
Dimensions reect minimum replace enclosure height
Figure 2.3, Rough Opening and Framing
Figure 2.4,CLW-50 Unit Wall Enclosure Rough Opening
76”
(1930mm)
48”
(1219mm) 64½”
(1638mm)
22”
(559mm)
44½”
(1130mm)
4¼”
(108mm)
76”
(1930mm)
64½”
(1638mm)
22”
(559mm)
44½”
(1130mm)
4¼”
(108mm)
Steel Framing Required
Steel Framing Required
CLW-50

Komfort Zone Kit #KZK-1510A R.4 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING AND CLEARANCES 11
8¼”
(209mm)
18”
(457mm)
86½”
(2197mm)
78¼”
(1988mm)
88”
(2235mm)
22”
(558mm)
Plenum rough opening
Height and Width
Unit and plenum
side view
BHM-44
Dimensions reect minimum replace enclosure height
Figure 2.5, Rough Opening and Framing
Figure 2.6, BHM-44 Unit Wall Enclosure Rough Opening
60½”
(1537mm)
88”
(2235mm)
46¼”
(1175mm)
57⁄”
(1463mm)
22”
(558mm)
4¼”
(108mm)
88”
(2235mm)
46¼”
(1175mm)
Double horizontal
header
Ceiling/Fireplace enclosure top
Ceiling/Fireplace
enclosure top
TV Recess
BHM-44

12 FRAMING AND CLEARANCES Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces Komfort Zone Kit #KZK-1510A R.4
2.3 Shelf Requirements
• The drawing below show the framing requirements if you desire
the air discharge opening to be located within the bump-out or
bookshelf framing.
2.3.1 CLW-50 Requirements
NOTE: For the CLW-50, take careful consideration in the dierence
of the minimum chamber height of the replace compared to the
minimum height of the shelf enclosure.
7”
(178mm)
MIN
22”
(559mm)
MAX
76”
(1930mm)
MIN
2”
(51mm)
MIN
76”
(1930mm)
MIN
82¾”
(2102mm)
MIN
7”
(178mm) MIN
18”
(457mm)
MIN
3”
(76mm)
MIN
22”
(559mm)
MIN
22”
(559mm)
MIN
3”
(76mm)
MIN
7”
(178mm)
MIN
82¾”
(2102mm)
MIN
18”
(457mm)
MIN
Ceiling
Enclosure Top
Grille
Enclosure Floor Enclosure Floor
Grille
CLW-50
Figure 2.7, CLW-50 Shelf Requirements

Komfort Zone Kit #KZK-1510A R.4 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING AND CLEARANCES 13
3”
(76mm)
MIN
0” (0mm)
MIN
18”
(457mm)
MIN
16”
(406mm)
MIN
22”
(559mm)
MAX
88”
(2235mm)
MIN
0” (0mm)
MIN
18”
(457mm)
MIN
16”
(406mm)
0” (0mm) MIN
88”
(2235mm)
MIN
BHM-44
Grille
Enclosure Top
Enclosure Floor
Ceiling
Enclosure Floor
Grille
Figure 2.8, BHM-44 Shelf Requirements
2.3.2 BHM-44 Requirements

14 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces Komfort Zone Kit #KZK-1510A R.4
3.0 FACING AND FINISHING
3.1 Non-combustible Requirements
21½”
(545mm)
66”
(1676mm)
6⁄”
(161mm)
48¾”
(1238mm)
53½”
(1359mm)
16¾”
(425mm)
10½”
(267mm)
Combustible Material Allowed
Non-Combustible Material Only
Steel Framing Required
Lower Cover Panel
Combustible Material Allowed
Non-combustible
material only
Combustible material
allowed
Combustible material allowed
see image below for acceptable
screw locations
CLW-50
3¾”
(95mm)
13”
(330mm)
9¾”
(248mm)
1½”
(38mm)
13”
(330mm)
3¾”
(95mm)
No Screws Allowed No Screws Allowed
No Screws Allowed
Non-Combustible Material Only
SCREW PATTERN LOCATIONS
Figure 3.1, CLW-50 Minimum Non-combustible Finishing Dimensions
Figure 3.2, Minimum Non-combustible Finishing Dimensions Screw Locations

Komfort Zone Kit #KZK-1510A R.4 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 15
Figure 3.3, BHM-44 Minimum Non-combustible Finishing Dimensions
2½”
(63mm)
44½”
(1130mm)
24⁄”
(633mm)
1½”
(38mm)
45⁄”
(1148mm)
8⁄”
(205mm)
60⁄”
(1540mm)
Combustible material allowed
Non-combustible material only
BHM-44
Combustible material allowedNon-combustible material only

16 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces Komfort Zone Kit #KZK-1510A R.4
3.2 Combustible Finish
NOTE: If you desire to run nishing material up to edge of the discharge
opening, see drawing below. Finishing material must not block the air
discharge grille and must be run evenly along the plenum opening.
WARNING! RISK OF OVERHEATING AND FIRE! Ensure the KZK duct
system is installed in accordance to this manual AND the convection
bae is removed when using these combustible clearances.
3.2.1 Drywall Finish
IMPORTANT: Additional 1" (25mm) combustible trim on top of
existing materials is NOT allowed inside the side shelf enclosure
(Section 2.3 Shelf Requirements on page 12.)
1" (25mm) combustible material goes on top of any required non-
combustible material required on the replace as shown in Figures
3.1 and 3.2 on page 10 for CLW-50 and Figure 3.3 on page 11 for
BHM-44.
Figure 3.4, #KZK-1510A Drywall Finish and Combustible Finishing Material up to 1" Thick
15½”
(368mm)
7¼” (184mm)
15⁄”
(403mm)
11⁄”
(301mm)
11⁄”
(301mm)
NOT ALLOWED INSIDE MINIMUM SHELF ENCLOSURE
Drywall stops at edge of air discharge opening.
Air grille discharge will overlap edges of drywall.
Up to 1”(25mm) thick combustible material up to edge of the air discharge grille.
1”combustible material cannot go closer to discharge opening.
1”combustible material goes on top of any required non-combustible material required on replace.
Combustible
Material up to
1”(25mm) thick
Discharge Grille

Komfort Zone Kit #KZK-1510A R.4 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 17
½”(13mm) clearance
around pipe
Combustible wall nish
up to 1”(25mm) thick
may be installed over
cement board
Finishing Edge
Fireplace Enclosure Floor
Non-combustible zone
Steel
Framing
CLW-50
Non-combustible
material
3.2.2 CLW-50 Combustible Wall Finish
• Figure 3.5 shows installation of combustible wall nish up to 1"
thick. This combustible material goes on any required non-
combustible materials as shown in Figure 3.1 on page 14.
• This 1" (25mm) combustible material is able to go down to the
replace nishing edge.
• See Figure 3.4 on page 16 for up to 1" (25mm) thick
combustible material installation around the KZK air discharge
grille.
Figure 3.5, #KZK-1510A Combustible Wall Finish for CLW-50

18 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces Komfort Zone Kit #KZK-1510A R.4
Non-combustible zone
BHM-44
Non-combustible
material
Top nishing edge
Combustible wall nish
up to 1”(25mm) thick
may be installed up to
the top nishing edge
and the bottom of the
air discharge opening
3.2.3 BHM-44 Combustible Wall Finish
• Figure 3.6 shows installation of combustible wall nish up to 1"
thick. This combustible material goes on any required non-
combustible materials as shown in Figure 3.3 on page 15.
• This 1" (25mm) combustible material is able to go down to the
replace nishing edge.
• See Figure 3.4 on page 16 for up to 1" (25mm) thick
combustible material installation around the KZK air discharge
grille.
Figure 3.6, #KZK-1510A Combustible Wall Finish for BHM-44

Komfort Zone Kit #KZK-1510A R.4 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 19
3.3 Hearth and Mantel Clearances
The following drawings show the hearth and mantel clearances
allowed for the CLW-50 and BHM-44 with no surround or optional
surrounds installed (if applicable). Follow the drawings for the
minimum distance needed between the hearth and mantel when
installing an optional surround to allow for proper servicing
clearances.
3.3.1 CLW-50 Finishing Guidelines
for Optional Surrounds
• Figure 3.7 shows where to end nishing materials, when
measuring from the nishing edge, to allow installation of any
optional surround. Most nishing material will not t behind the
optional surround(s) when it is installed.
• Measurement 'A' shows the space to leave on each side.
• Measurement 'B' shows the space to leave on the top and the
bottom.
Figure 3.7, Finishing Guidelines for Optional Surrounds
Surround A B
CW50-RS 3/4" (19mm) 1-1/2" (38mm)
CW50-RS4 2-5/8" (66mm) 2-5/8" (66mm)
CW50-GS 6" (152mm) 2-1/2" (64mm)
CW50-FS 3-1/8" (79mm) 3-1/8" (79mm)
B
A
Finishing Trim Edge
Surround Edge
Steel
Framing
Non-Combustible Zone
16¾”
(425mm)
26½”
(673mm)
9¾”
(248mm)
12” (305mm)
9” (229mm)
6” (152mm)
12” (305mm)
9” (229mm)
6” (152mm)
Combustible wall nish
may be installed over cement
board and butt up to the nshing
edge around the opening
Each square represents
1”(25mm)
of mantel projection
Finishing Edge
Fireplace Enclosure Floor
Finishing Edge
½”(13mm) clearance
around pipe
No Surround
Non-combustible
material
CLW-50
Figure 3.8, Hearth and Mantel Clearances for No Surround

20 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces Komfort Zone Kit #KZK-1510A R.4
Figure 3.9, BHM-44 Hearth and Mantel Clearances
25”
(635mm)
27½”
(699mm)
2½”
(64mm)
12” (305mm)
9” (229mm)
6” (152mm)
14” (356mm)
BHM-44
Each square represents
1”of projection
Combustible wall nish up to 1”
may be installed over cement
board and butt up to the nishing
edge around the opening
Non-combustible
material
Combustible oor
Top nishing edge
Bottom
nishing edge
Non-combustible zone
3.3.2 BHM-44 Mantel and Hearth Requirements
The BHM-44 is equipped only with a safety screen that ts inside the
nishing edge. Finishing material may butt up against the nishing
edge.