kozy heat DSL-36 User manual

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DIRECT VENT FIREPLACE
FEB 2012
DSL-36-REV-10
Report No. 216-F-14c-6.5
www.kozyheat.com
INSTALLATION AND OPERATION MANUAL
—Do not store or use gasoline or other flammable vapors and liquids in the vicinity
of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
◙Do not light any appliance.
◙Do not touch any electrical switch: do not use any phone in your building.
◙Immediately call gas supplier from a neighbors phone. Follow the gas supplier
instructions.
◙If you cannot reach your gas supplier, call the fire department.
—Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
WARNING: If the information in these instructions is not followed exactly, a fire
or explosion may result causing property damage, personal injury or loss of life.
WARNING
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 certified kit is used.
HOT GLASS WILL CAUSE BURNS.
DO NOT TOUCH GLASS UNTIL COOLED.
NEVER ALLOW CHILDREN TO TOUCH GLASS.
INSTALLER: LEAVE THIS MANUAL WITH THE APPLIANCE.
CONSUMER: RETAIN THIS MANUAL FOR FUTURE REFERENCE.
English and French Installation Manuals
Available Through Your Local Dealer or
Visit Our Website at www.kozyheat.com

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CONGRATULATIONS!
We welcome you as a new owner of a Kozy Heat gas fireplace. Kozy Heat products are
designed with superior components and materials and assembled by trained craftsmen who
take pride in their work. The burner and valve assembly are 100% test-fired and the complete
fireplace is thoroughly inspected before packaging to ensure that you receive a quality product.
Our commitment to quality and customer satisfaction have remained the same for over 30
years. We offer a complete line of gas and wood fireplaces, unique cabinets and stylish
accessories to compliment any décor. Adding a fireplace 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 to
not only function and reliability, but customer safety as well. We offer our continual support
and guidance to help you achieve the maximum benefit and enjoyment from your Kozy Heat
gas fireplace.
Jim Hussong Dudley Hussong
President Board Chairman
INTRODUCTION
Read this manual before installing or operating this appliance.
Please retain this owner‟s manual for future reference.
Homeowner Reference Information
We recommend that you record the following information about your fireplace.
Model Name:______________________________ Date purchased/installed:_____________________________________
Serial Number:____________________________ Location on fireplace:________________________________________
Dealership purchased from:__________________ Dealer Phone:______________________________________________
Notes:_______________________________________________________________________________________________
____________________________________________________________________________________________________
____________________________________________________________________________________________________

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TABLE OF CONTENTS
INTRODUCTION
Introduction and Homeowner Reference Information 1
CONTENTS
Table of Contents 2
SAFETY INFORMATION
Safety Information 3
FEATURES
Features 4
COMMONWEALTH OF MASSACHUSETTS INFORMATION
Commonwealth of Massachusetts Information 5
SPECIFICATIONS
Fireplace Dimensions 6
Clearances 6
Components List 7
Installation Overview 7
Placement Clearance Requirements 7
FIREPLACE PREPARATION
Stand-Off Assembly & Installation 8
Nailing Flange Assembly & Installation 9
FRAMING
Wall Enclosure Rough Opening 10
Minimum Finished Opening Dimensions 10
Vertical Terminations 11
Horizontal Terminations 11
TYPICAL INSTALLATION OPTIONS
Typical Installation Options 12
MANTEL REQUIREMENTS
Mantel Requirements 12
GLASS FRAME ASSEMBLY
Glass Frame Assembly Removal / Installation 13
GRILL SET
Grill Set Installation / Removal 13
FAN INSTALLATION
TMT-028 (DSL-36 only) Optional Fan Installation 14
GAS LINE CONNECTION
Gas Line Connection 15
DSL-36 THERMOSTAT / WALL SWITCH / REMOTE
DSL-36 Thermostat / Wall Switch / Remote 16
VENTING
Approved Venting 17
Horizontal Vent System Clearances 17
Horizontal Termination Minimum / Maximum 17
#800-WPT Wall Pass-Thru Installation Instructions 18
Horizontal Min. / Max. Venting Illustrations 19-20
Horizontal Vent Heat Shield Installation Instructions 20
Vertical Vent System Clearances 21
Restrictor 21
Horizontal / Vertical Combination Venting 21
Vertical Min. / Max. Venting Illustrations 22
VENTING (cont.)
Restrictor Installation 22
Horizontal & Vertical Combination Venting Illustrations 23-24
#800 Series Flex Vent Installation Instructions 25-26
Termination Vent Cap Location 27
Vent Termination Clearances 28
LOG SET INSTALLATION
Log Set Installation 29
CONTROL BOARD
Control Board Removal / Installation 30
DSL-36 OPERATING INSTRUCTIONS
DSL-36 Valve and Pilot Assembly Components 31
DSL-36 Lighting and Shutdown Instructions 32-34
DSL-36 Pressure Testing 35
DSL-36-IPI OPERATING INSTRUCTIONS
DSL-36-IPI Wiring Schematics 36
DSL-36-IPI Valve and Pilot Assembly Components 37
DSL-36-IPI Control Module Components 38
DSL-36-IPI Remote Control Components 39
DSL-36-IPI Information 40
DSL-36-IPI Remote Control Operation 41-43
DSL-36-IPI Lighting and Shutdown Instructions 44-45
DSL-36-IPI Pressure Testing 46
DSL-36-IPI Error Codes 47
FINALIZING THE INSTALLATION
Burner Tube Adjustment / Troubleshooting 48
Restrictor Troubleshooting / Installation after Termination Completion 49
MAINTENANCE
Maintenance 50
TROUBLESHOOTING
DSL-36 Troubleshooting 51-53
DSL-36-IPI Troubleshooting 54-55
CONVERSION KIT INSTRUCTIONS
DSL-36 Nat and LP Conversion Instructions 56-57
DSL-36-IPI Nat and LP Conversion Instructions 58-59
REPLACEMENT PARTS LIST
Replacement Parts List 60
WARRANTY
Warranty 61-62

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This fireplace has been tested to and complies with ANSI Z21.88a-2007·CSA 2.33a-2007·CSA P.4.1-02 “VENTED GAS FIREPLACE HEATERS”
by OMNI-Test Laboratories, Portland, OR. Installation must conform with local building codes or in the absence of local building codes, with the
National Fuel Gas Code, ANSIZ223.1/NFPA 54 - Current Editio n, or the Natural or Propane Installation Code, CSAB149.1
SAFETY INFORMATION
This fireplace has been tested by OMNI-Test Laboratories, Portland, Oregon and complies with:
ANSI Z21.88-2009/CSA 2.33-2009, “Standard for Vented Gas Fireplace Heaters”.
CAN/CGA 2.17-M91 (R2009), “Gas-Fired Appliances for Use at High Altitudes”.
CAN/CSA P.4.1-09, “Testing Method for Measuring Annual 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
Installation and repair should be done only by a qualified service person. The appliance should be inspected by a
qualified service person before use. Annual inspection by a qualified service person is required to maintain warranty.
More frequent cleaning may be required due to excessive lint from carpeting, bedding materials, etc. It is imperative
that control compartments, burners and circulation air passageways of the appliance be kept clean.
If this appliance is installed directly on carpeting, tile or other combustible material other than wood flooring, the
appliance shall be installed on a metal or wood panel extending the full width and depth of the appliance.
Children and adults should be alerted to the hazards of high surface temperatures and should stay away to avoid burns
or clothing ignition.
Young children should be carefully supervised when they are in the same room as the appliance. Toddlers, young
children and others may be susceptible to accidental contact burns. A physical barrier is recommended if there are at
risk individuals in the house. To restrict access to a fireplace or stove, install an adjustable safety gate to keep toddlers,
young children and other at risk individuals out of the room and away from hot surfaces.
Clothing or other flammable material should not be placed on or near the appliance.
Adequate accessibility clearances for servicing and proper operation must be maintained.
This appliance must not share or be connected to a chimney flue serving any other appliance.
Keep area around the appliance clear of combustible materials, gasoline and other flammable vapor and liquids.
The flow of combustion and ventilation air must not be obstructed.
Due to high temperatures the appliance should be located out of traffic and away from furniture and draperies.
The glass front or any part removed for servicing the appliance must be replaced prior to operating the appliance.
Work should be done by a qualified service technician.
Clean glass only when cool and only with non-abrasive cleansers.
WARNING: DO NOT OPERATE APPLIANCE WITH THE GLASS/FRAME ASSEMBLY REMOVED, CRACKED
OR BROKEN. REPLACEMENT OF THE GLASS SHOULD ONLY BE PERFORMED BY A LICENSED OR
QUALIFIED SERVICE PERSON .
The glass assembly, Part #DSL-057T, shall only be replaced as a complete unit, as supplied by Hussong Mfg. Co., Inc.
DO NOT SUBSTITUTE MATERIALS.
Do not strike or slam glass assembly.
Any safety screen or guard removed for servicing the appliance must be replaced prior to operating the appliance.
Under no circumstances should any solid fuel (wood, coal, paper or cardboard etc.) be used in this appliance.
Keep burner and control compartment clean.
Do not use this fireplace if any part has been under water. Immediately call a qualified service technician to inspect this
appliance and to replace any part of the control system and any gas control which has been under water.

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High efficiency
High quality lifetime glass
23-3/4” x 30-1/16” (603mm x 764mm)
Quick latch glass frame assembly
Upper grill / hood & lower grill (black)
High - Low regulator
Patented log design
Fan kit (1) - 75 CFM*
Minnesota Energy Code compliant to 50 pascals
*Standard on DSL-36-IPI model
Sandstone brick refractory*
Fan kit with variable speed control (1) - 75 CFM)
Remote control* or thermostat remote control
Wall mount thermostat / wireless wall mount thermostat
Decorative full door faces in various styles and finishes
Renaissance pattern front
Mission design doors in various finishes
Various cabinet & flush surrounds
*Standard on DSL-36-IPI model
Fireplace Weight (as packaged for shipment)
150lbs. (68.04kg)
Fireplace Weight (without packaging)
110lbs. (49.9kg)
FEATURES
STANDARD FEATURES
OPTIONAL FEATURES
WEIGHT
SAFETY FEATURES
Each unit factory tested!
Tested by OMNI-Test Laboratories
Sealed combustion chamber
Standing pilot ignition**
Intermittent or Standing pilot ignition*
30-second delay pilot - DSL-36 only
Flame sensing system (safety shutoff) DSL-36-IPI only
Automatic pressure relief glass system
Requires no electricity to operate (excluding fan) DSL-36 only
Battery back-up in the event of power failure
(excluding fan) DSL-36-IPI only
Bedroom and mobile home approved
Canadian approved
*Standard on DSL-36-IPI model
**Standard on DSL-36 model

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COMMONWEALTH OF MASSACHUSETTS REQUIREMENTS
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:
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.
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.
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
(1/2) in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
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.
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.
MANUFACTURER REQUIREMENTS - 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.
MANUFACTURER REQUIREMENTS - 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 o f the installation.
NOTE The following requirements reference various Massachusetts and national codes not contained in this manual.

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SPECIFICATIONS
FIREPLACE DIMENSIONS
FIREPLACE
DIMENSIONS
DESCRIPTION Height Width Back Width Depth Opening
Width
Glass Frame
Height
Stand-off
Height
Back to vent
center
INCHES 32 35-7/8 27-7/8 15-1/4 31-3/8 24-3/8 5-1/2 7-1/2
MILLIMETERS 813 911 708 387 797 619 140 191
CLEARANCES
Top of unit face to framing 5-1/2” (140mm)
From unit left & right sides & back 1/4” (6mm)
To flooring 0” (0mm)
Unit top to ceiling 31” (787mm)
Unit side to adjacent sidewall 1-1/2” (38mm)
Unit front to combustibles 36” (914mm)
Top of unit to 3/4” (19mm) trim 10” (254mm)
Mantel 4” (102mm) deep from top of fireplace 16” (406mm)
WARNING
Top stand-off brackets must be attached to fireplace. Do not remove. Stand-off brackets are not load bearing.
Non-combustible zone: Stand-offs provide 5-1/2” (140mm) minimum clearance to header. Use only non-combustible
material in this area for entire width of fireplace. Do not use wood, sheetrock etc. in this zone. Other clearances apply.
All clearances must be maintained.
Figure 6a

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#DSL-36 COMPONENTS LIST
1. Frame an opening for fireplace, allowing for vent installation and type of installation (corner or flat wall application).
2. If masonry (optional) is used, prepare foundation for the masonry load. A lintel is required to support the added weight above fireplace.
3. Attach stand-off brackets and nailing flanges to fireplace.
4. Insert fireplace into framing.
5. Install hearth (if applicable).
6. Complete gas line installation.
7. Complete electrical hook-up. Install any standard or optional electrical components at this time.
8. Complete venting installation.
9. Secure fireplace to flooring through holes in outer box bottom and to framing with nailing flanges. Verify all clearances at this point.
10. Install facing material, mantel or cabinetry, allowing room for optional full face doors, if applicable.
11. Install optional refractory.
12. Install logs.
13. Install grills and optional decorative doors / faces.
14. Verify proper operation of fireplace and all components.
PLACEMENT CLEARANCE REQUIREMENTS
This fireplace must be installed on a level surface capable of supporting fireplace and venting.
Fireplace must be placed directlyon wood or non-combustible surface (not linoleumor carpet) extending entire depth and width of fireplace.
Due to high surface temperatures, fireplace should be located out of traffic and away from furniture and draperies.
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.
SPECIFICATIONS
INSTALLATION OVERVIEW
#DSL-36-IPI COMPONENTS LIST
PART NUMBER DESCRIPTION
DSL-770 Millivolt Board Assembly
700-203 Manual Gas Shut-off Valve
DSL-135 Burner / Log Grate Assembly
DSL-500 Log Package
DSL-057T Glass Frame Assembly
OCK-S53 LP Conversion Kit
600-083 Receptacle/Speed Control Assembly
942-085 5” Restrictor Plate
DSL-HHS Horizontal Vent Heat Shield
500-DSL 3 pc. Grill Assembly
DSL-FPS Firepro Standoff
PART NUMBER DESCRIPTION
DSL-600-IPI Control Board Assembly
700-203 Manual Gas Shut-off Valve
DSL-135 Burner / Log Grate Assembly
TMT-028-IPI IPI Fan Kit
DSL-500 Log Package
DSL-057T Glass Frame Assembly
OCK-A53L-I-DSL-PSE LP Conversion Kit
700-208 Remote Control
600-002 Double Receptacle Assembly
942-085 5” Restrictor Plate
DSL-HHS Horizontal Vent Heat Shield
500-DSL 3 pc. Grill Assembly
DSL-FPS Firepro Standoff
NOTE The qualified installer should follow the procedure best suited for the installation.

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Top stand-off brackets and stand-off heat shield are attached to fireplace top in a flat state for shipping.
1. Remove and save (4) screws securing stand-off heat shield and stand-off brackets.
2. Form each stand-off bracket as shown.
3. Re-attach stand-off brackets to fireplace using screws previously removed along with (4) screws provided in fireplace components
packet.
4. Form stand-off heat shield and attach to stand-off brackets with (2) screws provided in fireplace components packet.
(Flange on stand-off heat shield faces „up‟ and to front of fireplace).
STAND-OFF / STAND-OFF HEAT SHIELD ASSEMBLY & INSTALLATION
WARNING
Top stand-off brackets must be formed and attached prior to positioning fireplace into framed opening.
Stand-offs provide 5-1/2” (140mm) minimum clearance to header. Use only non-combustible material in this area for entire
width of fireplace. Do not use wood, sheetrock, etc. in this zone. Other clearances apply. All clearances must be maintained.
Stand-off brackets are not load bearing.
STAND-OFF BRACKETS AS SHIPPED
REMOVE SCREWS SECURING STAND-OFF BRACKETS
ALIGN HOLES IN FORMED STAND-OFFS WITH HOLES IN
FIREPLACE TOP. SECURE WITH (4) SCREWS.
FORM STAND-OFF BY BENDING AT PERFORATIONS
FORMED STAND-OFF
STAND-OFF BRACKETS
INSTALLED
ALIGN HOLES IN FORMED STAND-OFF HEAT SHIELD WITH
HOLES IN STAND-OFF BRACKETS. SECURE WITH (4) SCREWS.
STAND-OFF HEAT
SHIELDS INSTALLED
Figure 8a
FIREPLACE PREPARATION

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NAILING FLANGE ASSEMBLY & INSTALLATION
When installed, nailing flanges provide the minimum 1/4” (6mm) clearance from fireplace sides.
1. Remove (4) nailing flanges from fireplace sides.
2. With the 1/4” (6mm) stand-offs on nailing flanges facing away from fireplace, align nailing flange with holes on outside corners of
fireplace. Secure with screws (provided in components packet) through slots in nailing flanges.
3. Bend perforation on nailing flange until parallel with fireplace face. Do not bend toward fireplace face.
4. Position framing stud against 1/4” (6mm) stand-off (located on backside of nailing flange). Secure with nails or screws.
FRAMING STUD
NAILING FLANGE
FRAMING STUD
1/2” (13mm)
CLEARANCE
STAND-OFF
FRONT VIEW
AS SHIPPED
NAILING FLANGES
INSTALLED
NAILING FLANGE
1/2” (13mm)
CLEARANCE
STAND-OFF
TOP VIEW
Figure 9a
NOTE Depending on facing material, tabs can be adjusted forward or back wards up to 1/2” (13mm).
CAUTION Never permanently remove these assemblies from fireplace - they must be secured in place regardless of finish material used.
FIREPLACE PREPARATION

10
37-1/2”
(953mm)
36-3/8”
(924mm)
WALL ENCLOSURE ROUGH OPENING
12-1/2” (318mm) H x 10-7/8” (277mm) W opening
(required for horizontal terminations)
Figure 10a
(APPLIES TO BOTH HORIZONTAL AND VERTICAL VENTING TERMINATIONS)
37-1/2” (952mm) High x 36-3/8” (924mm) Wide x 15-3/4” (400mm) Deep.
1/4” (6mm) clearance at back and sides of fireplace must be maintained.
MINIMUM FINISHED OPENING DIMENSIONS
WALL ENCLOSURE ROUGH OPENING
IMPORTANT
Framing dimensions should allow for wall covering thickness and fireplace facing materials. If using a hearth, adjust rough
opening size as necessary to maintain at least minimum clearance requirements.
Non-combustible facing material may be applied over (but not directly to) fireplace face. This will prevent facing material from
falling off due to heat expansion. Do not obstruct the flow of ventilation air.
NOTE Provide adequate clearance in front of fireplace to access components.
WARNING
DO NOT OBSTRUCT UPPER AND LOWER GRILL OPENINGS. ROOM AIR ENTERS THROUGH LOWER PASSAGE, IS HEATED
AND EXITS THROUGH UPPER PASSAGE. BLOCKING THESE PASSAGES MAY RESULT IN OVERHEATING, CREATING A
POTENTIALLY HAZARDOUS SITUATION.
FRAMING

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Frame a 12-1/2” (318mm) high (H) x 10-7/8” (276mm) wide (W) opening on
exterior wall for chimney termination. This opening size includes required
3” (76mm) top clearance and 1” (25mm) sides and bottom clearances for
approved rigid vent systems and Kozy Heat #800 series flexible vent system.
HORIZONTAL TERMINATIONS
Follow vent pipe manufacturer‟s installation instructions for vertical terminations. A minimum 1” (25mm) clearance on all sid es of
vertical vent pipe must be maintained.
VERTICAL TERMINATIONS
MINIMUM HORIZONTAL FRAMING DIMENSIONS
VENT PIPE TOP (A) FRAMED OPENING TOP (B)
RIGID PIPE 42-1/8” (1070mm) 45-1/8” (1146mm)
FLEX PIPE 49” (1245mm) 52” (1321mm)
Determine exact position of your fireplace, including hearth height, width, and depth, (if applicable). If possible, place fireplace in such a
manner that vent termination will be placed between two studs, eliminating the need for additional framing.
If masonry is to be used (optional), prepare necessary foundation for the masonry load. When masonry construction is being used, a lintel
must be used over top of fireplace to support the added weight.
Build hearth to desired size and height. If a hearth extension is desired, combustible material may be used.
Figure 11a
CAUTION Cold air transfer area. The surrounding 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.
CAUTION Due to high temperatures, this fireplace should be located out of traffic areas and away from furniture and draperies.
WARNING DO NOT RECESS VENT CAP INTO WALL OR SIDING.
WARNING Install fireplace on hard metal or wood surface extending the full width and depth of fireplace.
Minimum platform size: 37-7/8” (911mm) wide x 15-1/4” (387mm) deep.
IMPORTANT Vent cap location must be in compliance with guidelines on page 27 of this manual.
NOTE Consider height of hearth finish material (stone, brick, etc.) when building fireplace platform. The bottom of fireplace must be
level with finished hearth to allow for proper fit of contemporary frames.
NOTE The included Horizontal Vent Heat Shield is not used for vertical configurations.
FIRE
HAZARD Do NOT install directly on carpeting, vinyl, or any combustible material other than wood.
FRAMING

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MANTEL REQUIREMENTS
TYPICAL INSTALLATION OPTIONS
15-1/2”
(394mm)
36-3/8”
(924mm)
1/4”
(6mm)
1/4” (6mm)
29-78”
(759mm)
42-1/2”
(1073mm)
59-3/4” (1517mm)
15-1/2”
(394mm)
36-3/8”
(924mm)
1/4”
(6mm)
HORIZONTAL INSTALLATION CORNER INSTALLATION
VERTICAL INSTALLATION
10"
254mm
22"
559mm
16"
406mm
3/4"
19mm
4"
102mm
14"
356mm
Clearance to mantel legs or wall projections
(acceptable on both sides of opening).
Horizontal vent heat shield
IMPORTANT
Kozy Heat wall thimble pass-thru (#800-WPT or #800-WPT2) must be used on all horizontal vent runs.
Follow instructions on page 18 of this installation manual.
The horizontal heat shield included with this fireplace must be installed when using a 90-degree elbow directly off top of unit to
horizontally position vent system.
Horizontal vent heat shield not shown in illustrations below for clarity purposes only.
Figure 12b
Figure 12a
WARNING
Non-combustible zone: No combustible materials allowed on top of fireplace within shaded area for entire width and
depth of fireplace with the exception of the header. Backside of header must be no more than 2-1/4” (57mm) from front
of fireplace.

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GLASS FRAME ASSEMBLY
1. Place glass frame assembly onto fireplace front.
2. Pull top handles out and down to secure assembly top.
3. Pull bottom handles out and up to secure assembly bottom.
REMOVE GLASS FRAME ASSEMBLY
1. Locate spring-loaded handles securing glass frame assembly at top &
bottom of firebox.
2. Pull bottom handles out and down to release assembly bottom.
3. Pull top handles out and up to release assembly top.
4. Remove glass frame assembly from fireplace.
INSTALL GLASS FRAME ASSEMBLY
GRILL SET
1. Align hooks in upper louver to slots located in fireplace face. Set
down into position.
2. Insert upper hood flange into clips located at top of upper air passage,
keeping in mind this is a fairly tight fit.
3. Partially thread (2) screws (included in components packet) into nuts
at each end of lower grill. Secure to fireplace by threading screws into
corresponding holes in inside flange of lower grill opening. The lower
grill can now be opened and closed to access gas valve and controls.
1. Use both hands to pull hood out of upper air passage clips.
2. Lift upper louver up and out of slots.
3. Remove screws securing lower grill at each end to remove from
fireplace.
GRILL SET INSTALLATION
GRILL SET REMOVAL
Thread screws into nuts on each end
of grill and secure to lower grill opening.
3
Upper hood clips
2 Slide flange on upper hood into
clips at top of upper air passage.
1
WARNING DO NOT OPERATE THIS FIREPLACE WITH THE GLASS FRONT REMOVED, CRACKED OR BROKEN.
REPLACEMENT OF THE GLASS SHOULD BE DONE BY A LICENSED OR QUALIFIED SERVICE PERSON.
CAUTION TO PREVENT GLASS FRAME ASSEMBLY FROM FALLING FROM FIREPLACE AND BECOMING DAMAGED, FOLLOW THESE
INSTRUCTIONS EXACTLY WHEN REMOVING AND INSTALLING GLASS FRAME ASSEMBLY.
Figure 13b
Figure 13a

14
Optional fan kit #TMT-028 includes: (1) 75 CFM fan with temperature control switch and 4ft. (1219mm) fan cord
(2) 1/4” nuts
INSTALLATION OF THIS FAN SHOULD BE DONE ONLY BY A QUALIFIED INSTALLER
OPTIONAL FAN INSTALLATION (DSL-36 only)
1. Remove upper hood, upper louver & lower grill, if installed. Page 13.
2. Remove glass assembly. Page 13.
3. Insert fan through lower grill opening on left side of gas valve. Push to back of fireplace. Align mounting slots in fan bracket with
mounting studs. Secure with nuts.
4. From inside lower right grill opening, loosen screw securing removable access panel (with electrical box & romex connector installed).
Remove panel.
5. Insert 115V wiring (with ground) through romex connector and wire to speed control / receptacle assembly matching black (hot),
white (neutral), and green (ground) wires to corresponding wires on speed control / receptacle assembly.
6. Secure speed control / receptacle assembly to electrical box with (2) screws provided.
7. Re-install electrical access panel. Tighten screw.
8. Attach temperature control switch to bottom of firebox.
9. Plug cord into electrical box receptacle.
10. Turn speed control counter-clockwise until it „clicks‟. This is the OFF position.
11. Turn speed control ON by turning knob clockwise past the „click‟ - this is the highest setting.
12. Re-install glass assembly, lower grill, upper louver & upper hood.
WARNING
MAKE SURE HOUSEHOLD BREAKER IS SHUT OFF PRIOR TO WORKING ON ANY ELECTRICAL LINES.
THIS APPLIANCE IS EQUIPPED WITH A THREE-PRONG (GROUNDING) PLUG FOR PROTECTION AGAINST SHOCK HAZARD AND
SHOULD BE PLUGGED DIRECTLY INTO A PROPERLY GROUNDED THREE-PRONG RECEPTACLE. DO NOT CUT OR REMOVE
GROUNDING PRONG FROM THIS PLUG.
IMPORTANT
If installing a fan, it is easier to complete prior to connecting millivolt board to gas supply. Wiring must be done before enclosing fireplace sides.
An electrical box and romex connector are pre-installed on a removable panel on right side of fireplace. A receptacle / speed control assembly and
(3) wire nuts are included in fireplace components packet.
NOTE
Code approved line voltage wiring 14 gauge or better must be used when wiring this assembly.
Refer local electrical codes for specific requirements.
This appliance must be electrically grounded and connected in accordance with local codes, or in the absence of local codes, with the National
Electrical Code, ANSI/NFPA 70 Current Edition, or the Canadian electrical Code CSA C22.1.
This fan will not operate unless speed control has been turned ON and sufficient heat has been applied to temperature control switch. The fan will
turn ON and OFF automatically as fireplace heats and cools. Adjust fan to desired speed while it is running.
Incoming wiring-
60Hz
110V-120V
Temperature Switch
Speed Control
Electrical Box
Before adjusting temperature control switch, unplug 3-prong plug
on fan cord from receptacle. Adjust position of temperature
control switch to a warmer location under firebox to turn fan ON
sooner or move it to a cooler location under firebox to turn fan
ON later. The fan will turn on when sensor in temperature control
switch reaches 110° F and will turn OFF when sensor reaches 90°
F. After adjustment, insert fan cord 3-prong plug into receptacle.
TEMPERATURE CONTROL SWITCH POSITION
Receptacle Assembly
Figure 14a

15
GAS LINE CONNECTION
DSL-36 DSL-36-IPI
NATURAL GAS LP GAS NATURAL GAS LP GAS
MINIMUM INLET GAS PRESSURE 5” WC (1.25 kPa)
(7” WC (1.74 kPa) recommended)
11” WC (2.74 kPa)
(recommended)
5” WC (1.25 kPa)
(7” WC (1.74 kPa) recommended)
11” WC (2.74 kPa)
(recommended)
MAXIMUM INLET GAS PRESSURE 10.5” WC (2.62 kPa) 13” WC (3.24 kPa) 10.5” WC (2.62 kPa) 13” WC (3.24 kPa)
MANIFOLD PRESSURE (HI) 3.8” WC (.95 kPa) 10” WC (2.49 kPa) NA NA
MANIFOLD PRESSURE (LO) 1.1” WC (.27 kPa) 6.3” WC (1.57 kPa) NA NA
ORIFICE SIZE #42 #53 #42 #53
INPUT BTU/hr. (kW) 26,000 BTU/hr (7.62 kW) 25,500 BTU/hr (7.47 kW) 26,000 BTU/hr (7.62 kW) 25,500 BTU/hr (7.47 kW)
MINIMUM INPUT BTU/hr. (kW) 13,000 BTU/hr (3.81 kW) 12,000 BTU/hr (3.52 kW) 13,000 BTU/hr (3.81 kW) 12,000 BTU/hr (3.52 kW)
This fireplace is manufactured for use with Natural Gas. An LP conversion kit, is included with this fireplace. Follow instructions included
with conversion kit if converting to LP gas.
GAS CONVERSION
ATTENTION The conversion shall be carried out in accordance with the requirements of the provincial authorities having jurisdiction and in
accordance with the requirements of the ANSI Z223.1 installation code.
CAUTION
Installation of the gas line must only be done by a qualified person in accordance with local building codes, if any.
If not, follow ANSI 223.1.
Commonwealth of Massachusetts: Installation must be done by a licensed plumber of gas fitter.
NOTE
A listed (and Commonwealth of Massachusetts approved) 1/2” (13mm) T-handle manual shut-off valve and flexible gas
connector (included) are connected to the 1/2” (13mm) control valve inlet. If substituting for these components, please consult
local codes for compliance.
This fireplace is equipped with a 3/8” (10mm) x 18” (457mm) long flexible gas connector and manual shut-off valve. The gas
line should be run to the point of connection where the shut-off valve and flexible gas line will connect.
The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure
testing of that system at pressures in excess of ½ psi (3.5 kPa).
The appliance must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any
pressure testing of the gas line at test pressures equal to or less than ½ psi (3.5 kPa).
For high altitude installations, consult the local gas distributor or the authority having jurisdiction for proper rating methods.
ATTENTION
HIGH ALTITUDE INSTALLATIONS
In the USA: The appliance may be installed at higher altitudes. Please refer to your American Gas Association
guidelines which state: the sea level rated input of Gas Designed Appliances installed at elevations above 2000ft. (610m)
is to be reduced 4% for each 1000ft. (305m) above sea level. Refer also to National Fuel Gas Code, ANSI Z223.1/ NFPA
54, local authorities, or codes which have jurisdiction in your area regarding the de -rate guidelines.
In Canada: When the appliance is installed at elevations above 4500ft. (1372m), the certified high altitude rating shall
be reduced at the rate of 4% for each additional 1000ft. (305m). Refer also to CSA-B149.1 Natural Gas and Propane
Installation Code, Local authorities, or codes which have jurisdiction in your area regarding the de-rate guidelines.

16
OPTIONAL
Disconnect ON/OFF
rocker switch wires
from back of gas
valve.
If desired, a thermostat (wireless style also available), wall switch, or remote control assembly may be used to turn fireplace OFF and ON.
Only ONE of these may be installed. Follow instructions included with chosen assembly.
WALL SWITCH / THERMOSTAT:
Run low-voltage (thermostat) wires from terminals on gas valve to desired location of wall switch or thermostat.
Attach appropriate connectors to wall switch / thermostat wires and connect to top and bottom terminals marked TH/TPTH on gas valve.
REMOTE CONTROL:
Follow instructions included with remote control.
Remote Control Wiring Diagram
Thermostat Wiring Diagram
THERMOSTAT / WALL SWITCH / REMOTE (DSL-36 only)
Figure 16b
Figure 16a
IMPORTANT
If ON/OFF rocker switch wires are not disconnected, the ON/OFF rocker switch on millivolt board must be in OFF position
for proper operation of any of these components.
If rocker switch is ON, fireplace burner will operate until it is turned OFF by rocker switch. A wall switch, thermostat, or
remote control will not turn fireplace OFF when it has been turned ON by the rocker switch. Fireplace must be turned ON
and OFF by same method. Example: If fireplace is turned ON by remote control, it must be turned OFF by remote control.
The insulated cover included with remote control must be placed over remote receiver to prevent overheating.
NOTE INSTALLATION OF THERMOSTAT OR WALL SWITCH SHOULD ONLY BE DONE BY A QUALIFIED INSTALLER.
CAUTION DO NOT CONNECT HIGH VOLTAGE (115V) WIRE TO GAS VALVE!

17
Simpson Dura-Vent DV-PRO 5” x 8” direct vent system (horizontal and vertical terminations).
Simpson Dura-Vent 8” x 6-5/8” Decreaser (used with Simpson Dura-Vent direct vent system only).
Selkirk Metalbestos 5” x 8” direct vent chimney system (horizontal and vertical terminations).
Kozy Heat #800 series flexible vent system (horizontal terminations).
Metal Fab 5” x 8” direct vent chimney system (horizontal and vertical terminations).
ICC 5” x 8” direct vent chimney system (horizontal and vertical terminations).
Security 5” x 8” direct vent chimney system (horizontal and vertical terminations).
Amerivent / American Metal 5” x 8” direct vent chimney system (horizontal and vertical terminations).
HORIZONTAL VENT SYSTEM CLEARANCES
TOP BOTTOM SIDES
ALL APPROVED VENTING 3 inches (76mm) 1 inch (25mm) 1 inch (25mm)
HORIZONTAL TERMINATIONS (5” X 8”)
MINIMUM: 90° elbow + 6” (152mm) horizontal + termination cap. (Horizontal Vent Heat Shield required).
MAXIMUM: 90° elbow + 30ft. (9.14m)*+ termination cap.
* Horizontal terminations over 25ft. (7.62m) must use stainless steel pipe for the entire length of termination.
HORIZONTAL TERMINATIONS (with 8” x 6-5/8” Decreaser)
MINIMUM: 2ft. (610mm) vertical + Decreaser + 90° elbow + 6” (152mm) horizontal + termination cap.
MAXIMUM: 2ft. (610mm) vertical + Decreaser + 90° elbow + 30ft.*(9.14m) horizontal + termination cap.
* Horizontal terminations over 25ft. (7.62m) must use stainless steel pipe for the entire length of termination.
VENTING
APPROVED VENTING
This fireplace is designed to be used with any of the following vent systems without the use of an additional adaptor. Refer to vent manufacturer's
installation manual for complete installation instructions. Installation must conform with venting requirements and restrictions as outlined in this
manual.
IMPORTANT Consult the local and national installation codes to assure adequate combustion and ventilation air is available.
IMPORTANT
The horizontal vent heat shield must be installed when using a 90-degree elbow to horizontally position the vent system.
Kozy Heat Wall Pass-thru, #800-WPT (4-1/2” (114mm) - 6-1/2” (165mm) wall thickness),
or #800-WPT2 (6-1/2” (165mm)-12-1/2” (318mm) wall thickness) must be used on all horizontal vent runs if using 5” x 8” venting.
If using Dura-Vent 8” x 6-5/8” Decreaser, follow vent pipe manufacturer‟s installation instructions for their wall thimble.
IMPORTANT
The horizontal heat shield included with this fireplace must be installed when using a 90 -degree elbow to horizontally
position vent system. This includes any corner installation.
Flame height and appearance will vary depending upon venting configuration and type of fuel used. Venting requirements apply
to both Natural and LP gas.

18
VENTING
#800-WPT WALL PASS-THRU
12-1/2” (318mm) HIGH x 10-7/8” (276mm) WIDE
A. Measure wall thickness; cut insulation panel (included) this length.
B. Install wall pass-thru section marked #1 (3/8” (10mm) flange) into framed opening. Secure to interior wall with screws (not provided).
C. From the exterior, place insulation between flange and top of framed opening in wall pass-thru section #1.
D. Install wall pass-thru section marked #2 into framed opening, overlapping metal sections as necessary to accommodate wall thickness.
Secure to exterior wall with screws (not provided).
FRAMING DIMENSIONS FOR #800-WPT KOZY HEAT WALL PASS-THRU
IMPORTANT
#800-WPT or #800-WPT2 Wall Pass-Thru must be used on all horizontal vent terminations using 5” x 8” venting.
This includes both interior and exterior walls. Follow instructions below. If venting requires a 8” x 6 -5/8” Decreaser,
follow vent pipe manufacturer‟s installation instructions for their wall thimble.
WARNING MAINTAIN ALL CLEARANCES AS STATED IN THIS INSTALLATION MANUAL.
IMPORTANT If using Kozy Heat series flexible vent system, remove inner ring on each wall thimble section with a tin snips. This will provide
adequate room for the flexible vent system.
CUT RING OUT OF BOTH SECTIONS IF INSTALLING
#800 SERIES FLEX VENTING.
INSULATION
HEAT SHIELD MUST BE FLUSH
WITH WALL PASS -THRU.
3/8” (10mm) FLANGE MUST
BE ON INSIDE WALL.
Figure 18a

19
VENTING
MIN. / MAX. HORIZONTAL VENTING (5”x 8”)
MIN. / IMAX HORIZONTAL VENTING (8” x 6-5/8” DECREASER)
90° ELBOW
HORIZONTAL VENT HEAT SHIELD
MINIMUM: 6in. (152mm)
MAXIMUM: 25ft. (7.62m); 30ft. (9.14m) when using stainless
steel pipe for entire length of termination.
TERMINATION CAP
2ft. (610mm)
90° ELBOW
8” x 6-5/8” DECREASER
TERMINATION CAP
Figure 19b
Figure 19a
NOTE Page 22 has information on restrictor installation in conjunction with venting installation. Page 49 has information on restrictor
recommendations depending on burner flame appearance and instructions on installation after venting is completed.
IMPORTANT
The horizontal vent heat shield must be installed when using a 90-degree elbow to horizontally position the vent system.
Kozy Heat Wall Pass-thru, #800-WPT (4-1/2” (114mm) - 6-1/2” (165mm) wall thickness),
or #800-WPT2 (6-1/2” (165mm)-12-1/2” (318mm) wall thickness) must be used on all horizontal vent runs if using 5” x 8” venting.
If using Dura-Vent 8” x 6-5/8” Decreaser, follow vent pipe manufacturer‟s installation instructions for their wall thimble.
MINIMUM: 6in. (152mm)
MAXIMUM: 25ft. (7.62m); 30ft. (9.14m) when using stainless
steel pipe for entire length of termination.