kozy heat BAY-41-G User manual

Hussong Mfg. Co., Inc. • BAY-41-G Report No.: 216-F-41b-6.5 • Rev. 06, January 2015
HUSSONG MANUFACTURING CO., INC.
ͷDo not store or use gasoline or other
ammable vapors and liquids in the
vicinity of this or any other appliance.
ͷWHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier,
call the re department.
ͷInstallation and service must be performed
by a qualied installer, service agency or
the gas supplier.
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.
This appliance may be installed in
an aftermarket, permanently located,
manufactured home (USA only) or mobile
home, where not prohibited by local codes.
This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convertible for use with
other gases, unless a certied kit is used.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
BAYPORT-41 GLASS
Model #BAY-41-G
Direct Vent Gas Fireplace
Tested &
Listed By
O - T L
USC
Portland
Oregon USA
OMNI-Test Laboratories, Inc.
Installation and
Operation Manual
English and French installation manuals are
available through your local dealer. Visit our
website www.kozyheat.com or scan the QR
code for our mobile app.

HOMEOWNER REFERENCE 3
Read this manual before installation or operating this appliance.
Please retain this owner’s manual for future reference.
CONGRATULATIONS!
We welcome you as a new owner of a Kozy Heat gas replace. Kozy Heat products are designed with superior components
and materials, and assembled by trained craftsmen who take pride in their work. To ensure you receive a quality product, the
burner and valve assembly are 100 percent test-red, and the complete replace is thoroughly inspected before packaging. Our
commitment to quality and customer satisfaction has remained the same for over 30 years. We offer a complete line of gas and
wood replaces, along with stylish accessories to complement any decor. Adding a replace is one of the best ways to increase
the value of your home, and we are proud to offer a network of dealers throughout the country to help make your experience
everything you imagine. We pride ourselves in being dedicated not only to functionality and reliability, but also customer
safety. We offer our continual support and guidance to help you achieve the maximum benet and enjoyment from your Kozy
Heat gas replace.
Jim Hussong
President
Dudley Hussong
Board Chairman
Homeowner Reference Information
We recommend you record the following information:
Model Name: ___________________________________________
Serial Number: __________________________________________
Dealership Purchased from: _______________________________
Date purchased/installed: _________________________________
Location of fireplace: _____________________________________
Dealer phone: ___________________________________________
Notes: _____________________________________________________________________________________________________________
____________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________

TABLE OF CONTENTS 5
TABLE OF CONTENTS
TABLE OF CONTENTS................................................................... 5
1.0 INTRODUCTION ...................................................................... 7
1.1 Appliance Certification..................................................................7
1.2 Requirements for the Commonwealth of Massachusetts ......7
2.0 SPECIFICATIONS.................................................................... 8
2.1 Appliance Components ................................................................8
2.2 Heating Specifications ..................................................................8
2.3 Appliance Dimensions ..................................................................9
2.4 Safety Barrier Dimensions ...........................................................10
3.0 FRAMING ................................................................................. 11
3.1 Appliance Placement Considerations........................................11
3.2 Stand-off Assembly and Installation...........................................11
3.3 Clearances to Combustibles .......................................................12
3.4 Wall Enclosure Rough Opening..................................................13
3.5 Vent Termination Framing.............................................................14
4.0 #970 HEAT DUCT KIT ............................................................ 15
4.1 Kit Components..............................................................................15
4.2 Specifications .................................................................................15
4.3 Attach Heat Duct to Fireplace.....................................................16
4.4 Install Register Mounting Frame and Junction Box ................16
4.5 Install and Wire Fan Assembly....................................................16
4.6 Run and Secure Duct Pipe ..........................................................17
4.7 Complete the Installation..............................................................17
4.8 Operating Instructions ..................................................................17
4.9 Maintenance ...................................................................................17
5.0 FACING AND FINISHING........................................................ 18
5.1 Nailing Flange Assembly and Installation .................................18
5.2 Mantel Requirements ....................................................................19
5.3 Safety Barrier Installations...........................................................20
6.0 GAS LINE CONNECTION ....................................................... 21
6.1 Gas Conversion (sold separately) ..............................................21
6.2 Gas Line Installation......................................................................21
7.0 TERMINATION LOCATIONS ................................................... 22
7.1 Vertical Vent Cap Termination .....................................................22
7.2 Minimum Termination Clearances...............................................23
8.0 VENTING .................................................................................. 24
8.1 Rear Vent Conversion Instructions.............................................24
8.2 Approved 4” x 6⅝” Vent Systems ..............................................26
8.3 Venting Requirements...................................................................26
8.4 Use of Elbows.................................................................................26
8.5 Restrictor Assembly and Installation .........................................26
8.6 Top Venting .....................................................................................27
8.7 Rear Venting ...................................................................................29
8.8 #700-1 Series Direct Vent Termination Kit(s) ..........................30
9.0 FIREPLACE SETUP................................................................. 31
9.1 Glass Frame Assembly .................................................................31
9.2 Light Kit ..........................................................................................31
9.3 Glass Media Installation ..............................................................31
9.4 Control Board Removal and Installation....................................32
10.0 ELECTRICAL INFORMATION .............................................. 33
10.1 Electrical Specifications.............................................................33
10.2 Wiring Requirements...................................................................33
10.3 #IPI-028 Optional Fan Kit ..........................................................34
11.0 OPERATING INSTRUCTIONS .............................................. 35
11.1 Setup Proflame 2 IFC Module...................................................36
11.2 Initialize the Control System......................................................36
11.3 Reset the System for Manual Operation.................................36
11.4 Automatic Safety Restart............................................................36
11.5 Backup Battery Operation ........................................................36
11.6 IFC Module Ignition Sequence .................................................37
11.7 Additional Diagnostic Information.............................................37
11.8 Remote Control Operation ........................................................38
12.0 ADJUSTMENT ....................................................................... 41
12.1 Pressure Testing ..........................................................................41
12.2 Flame Appearance Adjustments...............................................42
13.0 TROUBLESHOOTING ........................................................... 44
14.0 MAINTENANCE ..................................................................... 46
14.1 Burner and Pilot System ...........................................................46
14.2 Fans................................................................................................46
14.3 Vent System..................................................................................46
14.4 Glass Assembly ...........................................................................46
15.0 REPLACEMENT PARTS LIST............................................... 47
LIMITED WARRANTY ..................................................................... 49
LIFETIME WARRANTY ................................................................... 51

INTRODUCTION 7
1.1 Appliance Certification
Laboratory: OMNI-Test Laboratories in Portland, Oregon
Standards:
• ANSI Z21.88-2014/CSA 2.33-2014, Vented Gas Fireplace
Heaters
• CGA 2.17-M91 (R2009), Gas-Fired Appliances for Use at High
Altitudes
• CSA P.4.1-2009, Testing Method for Measuring Annual
Fireplace Efficiency
This installation must conform with local codes, or in the absence
of local codes, with the National Fuel Gas Code , ANSI Z223.1/
NFPA 54, or the Natural Gas and Propane Installation Code , CSA
B149.1.
1.2 Requirements for the
Commonwealth of Massachusetts
The following requirements reference various Massachusetts
and national codes not contained in this manual.
For all sidewall horizontally vented gas fueled equipment installed
in every dwelling, building or structure used in whole or in part for
residential purposes, including those owned or operated by the
Commonwealth and where the side wall exhaust vent termination
is less than (7) feet above finished grade in the area of the venting,
including but not limited to decks and porches, the following
requirements shall be satisfied:
1.2.1 Installation of Carbon
Monoxide Detectors
At time of installation of side wall horizontally vented gas fueled
equipment, the installing plumber or gas-fitter shall observe that
a hard wired carbon monoxide detector with an alarm and battery
back-up is installed on the floor level where the gas equipment is
to be installed. In addition, the installing plumber or gas-fitter shall
observe that a battery operated or hard wired carbon monoxide
detector is installed on each additional level of the dwelling,
building or structure served by the side wall horizontal vented
gas fueled equipment. It shall be the responsibility of the property
owner to secure the services of qualified licensed professionals for
the installation of hard wired carbon monoxide detectors.
In the event that the side wall horizontally vented gas fueled
equipment is installed in a crawl space or attic, the hard wired
carbon monoxide detector with alarm and battery back-up may
be installed on the next adjacent floor level. In the event that
the requirements of this subdivision can not be met at the time
of completion of installation, the owner shall have a period of
thirty (30) days to comply with the above requirements; provided,
however, that during said thirty (30) day period, a battery operated
carbon monoxide detector with an alarm shall be installed.
1.2.2 Approved Carbon Monoxide Detectors
Each carbon monoxide detector as required in accordance with
the above provisions shall comply with NFPA 720 and be ANSI/UL
2034 listed and IAS certified.
1.2.3 Signage
A metal or plastic identification plate shall be permanently mounted
to the exterior of the building at a minimum of eight (8) feet
above grade directly in line with the exhaust vent terminal for the
horizontally vented gas fueled heating appliance or equipment. The
sign shall read, in print no less the one-half inch (½) in size, “GAS
VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
1.2.4 Inspection
The state or local gas inspector of the side wall horizontally
vented gas fueled equipment shall not approve the installation
unless, upon inspection, the inspector observes carbon monoxide
detectors and signage installed in accordance with the provisions
of 248 CMR 5.08 (2) (a) 1 through 4.
1.2.5 Exemptions
The following equipment is exempt from 248 CMR 5.08 (2) (a) 1
through 4: The equipment listed in Chapter 10 entitled “Equipment
Not Required To Be Vented” in the most current edition of NFPA
54 as adopted by the Board; and Product Approved side wall
horizontally vented gas fueled equipment installed in a room or
structure separate from the dwelling, building or structure used in
whole or in part for residential purposes.
1.2.6 Manufacturer Requirements
1.2.6.1 Gas Equipment Venting System Provided
When the manufacturer of Product Approved side wall horizontally
vented gas equipment provides a venting system design or venting
system components with the equipment, the instructions provided
by the manufacturer for installation of the equipment and the
venting system shall include:
• Detailed instructions for the installation of the venting system
design or the venting system components; and
• A complete parts list for the venting system design or venting
system.
1.2.6.2 Gas Equipment Venting
System NOT Provided
When the manufacturer of Product Approved side wall horizontally
vented gas equipment does not provide the parts for venting the
flue gases, but identifies “special venting systems”, the following
requirements shall be satisfied by the manufacturer:
• The referenced “special venting systems” instructions shall
be included with the appliance or equipment installation
instructions and;
• The “special venting systems” shall be Product Approved by
the Board, and the instructions for that system shall include a
parts list and detailed installation instructions.
A copy of all installation instructions for all Product Approved
side wall horizontally vented gas fueled equipment, all venting
instructions, all parts lists for venting instructions, and/or all venting
design instructions shall remain with the appliance or equipment at
the completion of the installation.
1.0 INTRODUCTION

8SPECIFICATIONS
2.0 SPECIFICATIONS
2.1 Appliance Components
Part Number Description
B41G-150 Control Board Assembly
700-203 Manual Gas Shut-off Valve
B41G-135 Burner Assembly
900-086 4 in Restrictor Plate
B41-057T Glass Frame Assembly
IPI-028 Fan Kit (2)-75 CFM
700-408 Remote Control
2.1.1 Additional Components Required
Refer to Section 8.0 Venting on page 24 for approved vent
systems.
2.2 Heating Specifications
Natural Gas LP Gas
Maximum
Input Rating
27,000 BTU/h
(7.9 kW)
27,000 BTU/h
(7.9 kW)
Minimum
Input Rating
15,000 BTU/h
(4.4 kW)
13,500 BTU/h
(4.0 kW)
Manifold Pressure
(High)
3.8” WC
(0.95 kPa)
11” WC
(2.74 kPa)
Manifold Pressure
(Low)
1.1” WC
(0.27 kPa)
2.9” WC
(.72 kPa)
Orifice Size (DMS) #42 #53
2.2.1 Altitude Adjustment
This appliance may be installed at higher altitudes. Please refer
to National Fuel Gas Code ANSI Z223.1/NFPA 54, CSA-B149.1
Natural Gas and Propane Installation Code, local authorities,
or codes having jurisdiction in you area regarding derate
guidelines.
2.2.1.1 US Installations
Refer to the American Gas Association guidelines for the gas
designed appliances derating method. For elevations above 2,000
ft (610 m), input ratings are to be reduced by 4% for each 1,000 ft
(305 m) above sea level.
2.2.1.2 Canadian Installations
When the appliance is installed at elevations above 4,500 ft (1,372
m), the certified high altitude rating shall be reduced at the rate of
4% for each additional 1,000 ft (305 m).

SPECIFICATIONS 9
2.3 Appliance Dimensions
Table 2.1, Physical Dimensions
Description Height Width Back
Width Depth Opening Width
Opening
Height
Stand-off
Height
Unit Top to
Center of
Back Vent
Unit Top
to Back
Vent Top
Back
to Vent
Center
Floor to
Rear Vent
Center
Inches 34-1/2 40-3/4 21-3/4 17 37-5/8 29-5/16 10 6-1/8 2-3/4 7-1/4 28-3/8
Millimeters 876 1035 553 431 955 745 254 156 70 184 721
21¾”
(553mm)
7¼”
(184mm)
17”
(431mm)
2⁄”
(58mm)
6⁄”
(169mm)
34½”
(876mm)
37⁄”
(955mm) 40¾”
(1035mm)
29⁄”
(745mm)
10”
(254mm)
11⁄”
(300mm)
2”
(51mm)
6⁄”
(169mm)
6⁄”
(156mm)
2¾”
(70mm)
28⁄”
(721mm)
TOP
FRONT
BACK
LEFT
SIDE
RIGHT
SIDE
ELECTRICAL
ACCESS
GAS LINE
HOLE
Figure 2.1, Appliance Dimensions

10 SPECIFICATIONS
2.4 Safety Barrier Dimensions
WARNING: A barrier designed to reduce the risk of burns from
the hot viewing glass is provided with this appliance and shall
be installed for the protection of children and other at-risk
individuals.
If the barrier becomes damaged, the barrier shall be replaced
with Hussong Mfg.’s barriers for this appliance. Only doors
certified with the appliance shall be used.
Refer to Section 5.3 Safety Barrier Installations on page 20 for
installation and mounting options.
TOP AND SIDES OVERLAP
NO OVERLAP - INSIDE FIT
TOP AND SIDES OVERLAP TOP AND SIDES OVERLAP
TOP AND SIDES OVERLAP TOP AND SIDES OVERLAP TOP AND SIDES OVERLAP
B41-PSF B41-FRSF
B41R-MSF B41A-MSF B41R-CSF
B41-RSF B41A-FPDSF
SIDE
OVERLAP
TOP OVERLAP
SIDE
OVERLAP
TOP OVERLAP
SIDE
OVERLAP
TOP OVERLAP
SIDE
OVERLAP
TOP OVERLAP
TOP OVERLAP at CORNER
SIDE
OVERLAP
TOP OVERLAP
TOP OVERLAP
SIDE
OVERLAP
SIDE OVERLAP at CORNER
⁄”
(9mm)
⁄”
(8mm)
⁄
”
(9mm)
⁄”
(8mm)
⁄”
(9mm)
⁄”
(8mm)
⁄”
(9mm)
⁄”
(8mm) ⁄”
(5mm)
⁄”
(9mm)
⁄”
(8mm)
⁄”
(9mm)
41 ⁄”
(1051mm)
34¾”
(882mm)
¼”
(6mm)
41 ⁄”
(1051mm)
34¾”
(882mm)
1 ⁄”
(35mm)
37 ½”
(953mm)
32¼”
(819mm)
41 ⁄”
(1051mm)
34¾”
(882mm)
34¾”
(882mm)
41 ⁄”
(1051mm)
41 ⁄”
(1051mm)
41 ⁄”
(1051mm)
34¾”
(882mm)
34¾”
(882mm)

FRAMING 11
3.0 FRAMING
3.1 Appliance Placement
Considerations
WARNING: Due to high temperatures, the appliance should be
located out of traffic and away from furniture and draperies.
FIRE HAZARD: Do NOT install this appliance directly on
carpeting, vinyl, or any other combustible material other than
wood.
• This appliance must be installed on a level surface capable
of supporting the fireplace and venting. If possible, place the
fireplace in a position where the vent terminates between two
studs, eliminating the need for any additional framing.
• This fireplace may be installed in a bedroom.
• Please be aware of the large amount of heat this fireplace will
produce when determining a location.
3.2 Stand-off Assembly and Installation
WARNING: The top stand-offs provide the 10 in (254 mm)
minimum clearance to the header. Use only non-combustible
material in this area for the entire width of the fireplace. DO
NOT use wood, sheetrock, et cetera, in this zone.
Top stand-off brackets must be formed and attached prior to
positioning fireplace into framed opening.
1. Remove and save (4) screws securing stand-off heat shields
and stand-off brackets on top of the fireplace.
2. Form each top stand-off bracket by bending at perforations,
as shown.
3. Align the holes in the formed top stand-offs with the holes
in the fireplace top. Secure with the (4) screws previously
removed along with (4) screws located on top of the
fireplace.
4. Form stand-off heat shields as shown. The flange will face up
and to the back of the fireplace.
5. Align the in the stand-off heat shields with the holes in the
top stand-off brackets Secure with (8) screws provided in the
fireplace components packet.
BEND AT
PERFORATIONS
FORMED
STAND-OFF
STAND-OFF BRACKETS AS SHIPPED
TOP STAND-OFF BRACKETS INSTALLED
STAND-OFF HEAT SHIELDS INSTALLED
Figure 3.1, Stand-Off Assembly and Installation

12 FRAMING
3.3 Clearances to Combustibles
Table 3.1, Minimum Appliance Clearances to Combustible Material
From appliance top stand-offs 0 in 0 mm
From appliance left and right side stand-offs 0 in 0 mm
From appliance back stand-offs 0 in 0 mm
From appliance corners 1/4 in 6 mm
From appliance front 36 in 914 mm
From appliance top to ceiling 31 in 787 mm
Appliance sides to adjacent sidewall 1 in 25 mm
Top of appliance to 3/4 in (19 mm) trim 10 in 254 mm
Mantel 10 in (254 mm) deep from appliance top 14 in 356 mm
1”
(25mm)
28¼”
(717mm)*
41¼”
(1048mm)
17½”
(445mm)
41¼”
(1048mm)
½”
(13mm)
41¼”
(1048mm)
56⁄”
(1431mm)
28⁄”
(716mm)
¼”
(6mm)
39⁄”
(1012mm)
13”
(331mm)
½”
(13mm)
17½”
(445mm)
41¼”
(1048mm)
TYPICAL VERTICAL INSTALLATION
TOP VENT
TYPICAL HORIZONTAL INSTALLATION
TOP VENT
17½”
(445mm)
41¼”
(1048mm)
½”
(13mm)
TYPICAL HORIZONTAL INSTALLATION
REAR VENT
TYPICAL VERTICAL INSTALLATION
REAR VENT
TYPICAL CORNER INSTALLATION
TOP VENT
*DIMENSION SHOWN WITH LISTED DURAVENT ELBOW.
NOTE: Approved vent system elbows for this appliance vary in
vertical length. Consult vent manufacturer’s instructions to
determine the elbow dimension used for your installation. Adjust
as necessary to maintain the required 1” (25mm) clearance from
the vent pipe to combustible material.
Figure 3.2, Typical Installation Options

FRAMING 13
3.4 Wall Enclosure Rough Opening
WARNING: Provide adequate clearances around air openings
into the combustion chamber. Provide adequate clearance in
front of the fireplace for barrier removal, component access,
gas line installation, service access, etc.
• Framing dimensions should allow for wall covering thickness
and fireplace facing materials. If using a hearth, adjust the
rough opening size as necessary to maintain minimum
clearance requirements.
• If masonry is to be used (optional), prepare the necessary
foundation for the masonry load. When masonry construction
is to be used, a lintel must be used over the top of the
appliance to support the additional weight.
• If installing the optional heat duct kit, refer to Section 4.0
#970 Heat Duct Kit on page 15.
Figure 3.3, Finished Opening Dimensions
SINGLE VERTICAL HEADER
BOARD IS REQUIRED TO
MAINTAIN CLEARANCES TO
COMBUSTIBLES
44½”
(1130mm)
41⁄”
(1051mm)
17½”
(445mm)

14 FRAMING
3.5 Vent Termination Framing
IMPORTANT: Vent cap location must be in compliance with
Section 7.2 Minimum Termination Clearances on page 23.
WARNING: DO NOT RECESS THE VENT CAP INTO WALL OR
SIDING.
3.5.1 Vertical Terminations
CAUTION: Cold air transfer area. The surround fireplace chase
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.
• Follow vent pipe manufacturer’s installation instructions for
vertical terminations.
• A minimum of 1 in (25 mm) clearance on all sides of the
vertical vent pipe must be maintained.
3.5.2 Horizontal Terminations
IMPORTANT: Horizontal vent sections require ¼ in (6 mm) rise
for every 12 in (305 mm) of travel.
NOTE: Elbows listed with approved vent systems for this
appliance vary in vertical length. Please consult the vent
manufacturer’s instructions to determine the elbow dimension
used for installation. Adjust the wall pass-through rough opening
dimensions as necessary to maintain clearance requirements.
• Follow vent pipe manufacturer’s installation instructions for
vent installation.
• Flex pipe vent systems require a minimum of 1 in (25 mm)
clearance from the top, sides, and bottom surfaces of
horizontal pipe.
• Rigid pipe vent systems require a minimum of 1½ in (38 mm)
from the top surface of horizontal pipe, and 1 in (25 mm)
from the sides and bottom surfaces of horizontal pipe.
• Refer to Table 3.2, Table 3.3, Table 3.4, Table 3.5, and Figure
3.4 for horizontal vent framing.
Table 3.2, NG & LPG - Rear Vent Minimum Horizontal Venting
Vent Pipe Top (A) Framed Opening Top (B)
31-5/8 in 803 mm 33-1/8 in 842 mm
Table 3.3, NG - Top Vent Minimum Horizontal Venting
Vertical Venting
90° Elbow
Vent Pipe Top (A) Framed Opening
Top (B)
Rigid Vent System 45 in 1143 mm 46-1/2 in 1181 mm
Flex Vent System 49 in 1245 mm 50 in 1270 mm
Table 3.4, LPG - Top Vent Minimum Horizontal Venting
Minimum Vertical
Rise
9 in (229 mm)
Vent Pipe Top (A) Framed Opening
Top (B)
Rigid Vent System 52-1/2 in 1333 mm 54 in 1372 mm
Flex Vent System 52-1/2 in 1333 mm 53-1/2 in 1359 mm
W
H
A
B
Figure 3.4, Horizontal Vent Terminations
Table 3.5, NG & LPG - Top Vent Minimum Horizontal Venting
Minimum Vertical
Rise
15 in (381 mm)
Vent Pipe Top (A) Framed Opening
Top (B)
Rigid Vent System 57 in 1448 mm 58-1/2 in 1486 mm
Flex Vent System 57 in 1448 mm 58 in 1473 mm

#970 HEAT DUCT KIT 15
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)
(2) Mounting brackets
(1) Register mounting frame with collar (11) Sheet metal screws
(1) Register cover with screws (4) Sheet rock screws
(1) Duct collar (3) Flange nuts
(1) Fan assembly (1) Strapping cord
(1) Fan housing cover plate (3) Wire nuts
(1) Speed control mounting bracket (2) Fan wire connectors
(1) Speed control
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 0 in 0 mm
From air duct to ceiling 2 in 51 mm
Table 4.2, Heat Duct Vent runs
Vent Run Minimum Maximum
Any direction, including
downward
2 ft 609 mm 20 ft 6.1 mm
Figure 4.1

16 #970 HEAT DUCT KIT
4.3 Attach Heat Duct to Fireplace
1. Bend the tabs on fireplace top up. With circulation holes
facing down, use (3) screws to fasten the tabs to the duct
collar.
2. Secure the flexible pipe to the duct collar. Verify screws
penetrate both the flexible pipe and the duct collar.
3. Do not cover circulation holes on the duct pipe.
4. Position the fireplace in the desired location.
4.4 Install Register Mounting
Frame and Junction Box
1. The register mounting frame and the fan housing are
designed to fit between 2” x 4” stud walls, 16 in (406mm) on
center. Additional framing is required if larger opening exists.
2. Locate and mark the position of the register.
3. Insert the register mounting bracket into the 16 in (406 mm)
opening.
4. Level and adjust the mounting bracket. The sides of the
bracket should be flush with the front of the framing studs,
and the front of the bracket should protrude ½ in from the
studs to allow for ½” sheetrock installation.
5. Secure the mounting bracket to framing with the provided (4)
sheetrock screws.
6. Install the junction box on the wall at desired location. The
junction box is used to house the speed control assembly,
which controls fan speed and operation.
4.5 Install and Wire Fan Assembly
1. Attach, but do not tighten, flange nuts to the mounting studs
on the back of the register mounting bracket.
2. Align (3) slots on the fan assembly to studs, then slide the
fan into position. Tighten the flange nuts to secure.
3. Slide the included fan wire connectors into the fan terminals.
4. Properly wire the 110 VAC wire to the hot and neutral fan
wires, and the speed control wires, with provided wire nuts.
5. Run 110 VAC to fan speed control, then from the fan
speed control through the romex connector (on the register
bracket).
6. Secure grounding wire to the grounding screw installed in
register mounting bracket. Fan must be properly grounded.
Figure 4.2
BLACK BLACK
WHITE
OR
BLACK
WHITE
OR
BLACK
SPEED
CONTROL
WHITE
GROUND GROUNDING SCREW
ROMEX CONNECTOR
BLACK
WHITE
Grounding
Screw
Figure 4.4
Figure 4.5
Figure 4.3

#970 HEAT DUCT KIT 17
4.6 Run and Secure Duct Pipe
4.6.1 Oval Duct Pipe
1. Run the oval and round duct pipe to the register location.
2. Shape the 6 in (152 mm) round duct pipe to fit outside the
oval duct pipe. Secure with the screws provided.
3. Slide the oval duct pipe over the oval collar on the register
mounting bracket. Secure with the sheet metal screws
provided.
4. OPTIONAL: Secure duct pipe with any additional screws
provided.
4.6.2 Round Duct Pipe
1. Run the round duct pipe to the register location.
2. Shape the 6 in (152 mm) round duct pipe so it will fit outside
the oval collar on the register mounting bracket.
3. Slide the round duct pipe until it touches the register
mounting bracket.
4. Position the locking strap around the 6 in (152 mm) duct
pipe, above the crimped metal.
5. Pull the locking strap tight enough to firmly secure the duct
pipe.
4.7 Complete the Installation
1. Install sheetrock or wall finish material as desired before
attaching the register cover and fan housing cover plate.
2. Position the cut-out portion of the fan housing cover plate
over the fan chute to allow air flow. Align the holes in the
fan housing cover plate to the corresponding holes in the
register mounting plate and fan assembly. Secure with (4)
screws provided.
3. Slide the speed control through the mounting bracket.
Secure with the mounting nut.
4. Secure mounting bracket to the junction box with the (2)
screws provided.
5. Center the register cover over the fan housing cover plate to
install. Secure register cover to stud wall with the provided
mounting screws.
6. Attach a cover plate (not provided), then install the control
knob for the speed control.
7. Complete the fireplace installation by following the
instructions included with the fireplace.
4.8 Operating Instructions
1. After complete fireplace installation and subsequent initial
burn period, turn the fireplace burner ON by following the
lighting instructions included with the fireplace.
2. Allow the fireplace to produce heat for approximately 15
minutes.
3. To operate the heat duct fan, turn the wall-mounted speed
control clockwise until it stops. The fan should turn on
and be operating at its highest speed. Adjust the speed
to desired air flow level by turning the speed control knob
counter-clockwise until it ‘clicks’ off.
4.9 Maintenance
• The duct register must be kept clear and unobstructed. Clean
and vacuum as necessary to remove dust, lint, etc. from fan
which will inhibit air flow.
• Detach the register cover and the fan housing cover plate at
least once a year to remove dust, lint, etc. from the fan. More
frequent cleaning may be necessary.
• The fireplace must be maintained and serviced as outlined in
the unit installation and operating instructions.
Figure 4.7
Figure 4.6

18 FACING AND FINISHING
5.0 FACING AND FINISHING
5.1 Nailing Flange Assembly
and Installation
NOTE: Depending on facing material, tabs can be adjusted
forward or backward up to ½ in (13 mm).
CAUTION: Never permanently remove these assemblies
from the fireplace—they must be secured regardless of finish
material used.
1. Remove (4) nailing flanges from the right and left side of the
fireplace.
2. Align nailing flange with holes on outside corners of fireplace,
with the stand-off flanges on the nailing flanges facing away
from the fireplace
3. Secure the nailing flanges to the fireplace with screws
(provided) through the slots in nailing flanges.
4. Bend perforation on nailing flange until parallel with fireplace
face. Do not bend toward fireplace face.
5. Position framing stud against the small stand-off (located on
backside of nailing flange). Secure with nails or screws.
• When installed, the nailing flanges provide the minimum ¼ in
(6 mm) clearance from the sides of the fireplace to framing.
FRAMING STUD
NAILING FLANGE
STAND-OFF
FLANGE
FRONT VIEW
STAND-OFF
FLANGE
TOP VIEW
¼”(6mm)
CLEARANCE
FRAMING STUD
SIDE VIEW
NAILING FLANGES
AS SHIPPED
NAILING FLANGES
INSTALLED
BACK VIEW
Figure 5.1, Nailing Flange Assembly and Installation

FACING AND FINISHING 19
5.2 Mantel Requirements
*NON-COMBUSTIBLE ZONE: 48 in (1219mm) MINIMUM FOR REAR VENTING AND FOR NATURAL GAS TOP
VENTING MINIMUM HORIZONTAL VENT TERMINATIONS
1½” (38mm) CLEARANCE TO COMBUSTIBLE MATERIAL ABOVE THE TOP SURFACE OF HORIZONTAL PIPE
MUST BE MAINTAINED FOR EVERY VENTING CONFIGURATION.
FIREPLACE ENCLOSURE FLOOR
48”
(1219mm)*
NON-COMBUSTIBLE ZONE
½” (13mm)
NON-COMBUSTIBLE
MATERIAL ONLY
SINGLE VERTICAL
HEADER
16”
(406mm)
18”
(457mm)
10” (254mm)
12” (305mm)
14” (356mm)
14”
(356mm)
¾” (19mm)
10”
(254mm)

20 FACING AND FINISHING
5.3 Safety Barrier Installations
5.3.1 Inside Fit - Recessed Installation
Model #B41-RSF
1. Locate the slots on the back side of the screen front.
2. Partially thread (4) truss head screws, included with this
assembly, into each mounting hole on the fireplace (2 each
side).
3. Align the slots on the screen front with the truss head screws
on the fireplace, then slide the screen front unto fireplace.
4. Tighten all screws.
• Fireplace accessibility: loosen, but do not remove, the (4)
truss head screws located on the sides of the fireplace. Raise
the screen up slightly and out.
5.3.2 Overlap Fit - Hanging Installation
Models #B41-PSF, #B41-FRSF, #B41R-MSF, #B41A-MSF,
#B41R-CSF, and #B41A-FPDSF.
1. Center the screen front over the glass frame assembly,
allowing the screen front’s mounting brackets to fit inside the
air openings.
2. Align the notched tabs (located on the back) with the slots
in the fireplace. Raise slightly and push back to desired
position.
3. Lower the screen front until the notched tabs are firmly in
position, verifying the depth accommodates finish material.
• To remove safety screen: lift the screen up and out of slots.
5.3.3 Overlap Fit - Direct Mount
Installation Option
Models #B41-PSF, #B41R-MSF, and #B41A-MSF (recommended
for low height clearance applications).
1. Locate the (4) acorn nuts on the left and right side of the
screen front face (2 each side).
2. Remove and save the (4) nuts securing the (2) mounting
brackets to the screen front.
3. Position mounting brackets to fit inside the air openings on
the sides of the fireplace, and align the (2) notched tabs on
the back of each bracket with the slots in the fireplace.
4. Set the mounting brackets into desired position, verifying the
depth accommodates finish material.
5. Secure mounting brackets with (4) truss head screws
(included) into each mounting hole on fireplace (2 each
side).
6. Slide the screen front over the (4) mounting studs and secure
with the (4) side acorn nuts previously removed.
• Fireplace accessibility: remove the (4) acorn nuts on the left
and right side of the screen front face (2 each side), then
remove screen front assembly from studs on the mounting
bracket.