kozy heat LXL-22-MV User manual

INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
LAKEFIELD-22-MV
INSTALLATION AND OPERATION MANUAL
Model #LXL-22-MV
Direct Vent Gas Stove
Hussong Mfg. Co., Inc.
LXL-22-MV
Report No: 21-739
Rev. 1, 4.20.2022
Starting Serial Number:
22 LX2200001 18
ͷ Do not store or use gasoline or other flammable
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 fire department.
ͷInstallation and service must be performed by
a qualified 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.
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.
HOT GLASS WILL
CAUSE BURNS
DO NOT TOUCH GLASS
UNTIL COOLED
NEVER ALLOW CHILDREN
TO TOUCH GLASS
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.
DANGER
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.

#LXL
-22-MV
R.1 4.202022
3
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
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 fireplace. 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-fired, and the complete fireplace is thoroughly inspected before packaging. Our commitment to
quality and customer satisfaction has remained the same for over 40 years. We offer a complete line of
gas, wood, and electric fireplaces, along with stylish accessories to complement any decor. 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 not only to functionality and reliability, but also customer safety.
We offer our continual support and guidance to help you achieve the maximum benefit and
enjoyment from your Kozy Heat gas fireplace.
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:

#LXL-22-MV
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HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
TABLE OF CONTENTS
HOMEOWNER REFERENCE INFORMATION ................................. 3
TABLE OF CONTENTS.................................................................... 5
1.0 INTRODUCTION...................................................................... 7
1.1
Appliance Certification .......................................................................... 7
1.2 California Proposition 65 Warning ......................................................
7
1.3 Requirements for the Commonwealth of Massachusetts..............
7
2.0 SPECIFICATIONS .................................................................... 8
2.1
Heating Specifications ............................................................................. 8
2.2 Electrical
Specifications ........................................................................... 8
2.3
Appliance Dimensions ........................................................................... 9
2.4 Safety Barrier Screen and
Overlays ...................................................... 10
3.0 FRAMING................................................................................ 11
3.1
Installation Planning ................................................................................ 11
3.2 Clearances to Combustibles................................................................... 12
3.3 Rough-in Vent Termination....................................................................
13
3.4 Alcove
Installation .................................................................................... 14
3.5 Masonry
Application ............................................................................... 15
3.6
Outdoor Covered Gas Stove Installation .............................................. 16
4.0 GAS LINE
CONNECTION ........................................................... 18
4.1
Gas Conversion ......................................................................................... 18
4.2 Gas Line Installation.................................................................................. 18
5.0 TERMINATION
LOCATIONS .................................................... 19
5.1
Vertical Vent Termination ......................................................................... 19
5.2 Minimum Termination Clearances ......................................................
20
6.0 VENTING................................................................................. 21
6.1 Approved Vent Systems .......................................................................... 21
6.2 Venting Requirements ............................................................................. 21
6.4 Vent
Installation ........................................................................................ 23
6.5 Class A Chimney/Masonry Chimney Conversion ........................... 26
6.6
Coaxial to Co-Linear Chimney Conversion ........................................ 27
7.0 FIREPLACE SETUP ..................................................................
28
7.1 Safety Barrier Screen and Overlay Installation..................................
28
7.3
#LX22-500 Log Set Installation ............................................................... 29
7.4 Control Board Removal and Installation.............................................
30
8.0 ELECTRICAL INFORMATION................................................... 31
8.1
Wiring Requirements ................................................................................31
9.0 LIGHTING INSTRUCTIONS ......................................................
32
9.1 Flame Height and Heat Output Adjustment ....................................
33
10.0 ADJUSTMENT........................................................................34
10.1
Pressure Testing.......................................................................................34
10.2 Burner Flame Adjustments ..................................................................
35
11.0 TROUBLESHOOTING .............................................................38
12.0 MAINTENANCE .....................................................................
40
12.1 Firebox .......................................................................................................40
12.2
Fans ............................................................................................................ 40
12.3 Vent
System ............................................................................................. 40
12.5 Burner and Pilot System.......................................................................
41
13.0 REPLACEMENT PARTS LIST..................................................42
14.0 OPTIONAL FAN KIT……………………………………………43
15.0 LIMITED LIFETIME WARRANTY.............................................44

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HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
1.0 INTRODUCTION
1.1 Appliance Certification 1.3.3 Signage
SECTION 1 INTRODUCTION
Appliance Certification–Requirements for Massachusetts
Laboratory: PFS in Cottage Grove, Wisconsin
Standards:
ANSI Z21.88-2019/CSA 2.33-2019, Vented Gas Fireplace Heaters
CSA 2.17 2017, Gas-Fired Appliances for Use at High Altitudes
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 California Proposition 65 Warning
WARNING: This product can expose you to chemicals including
Carbon Monoxide, that is an externally vented by-product of fuel
combustion, which is [are] known to the State of California to cause
birth defects or other reproductive harm. For more information, visit
www.P65Warnings.ca.gov.
1.3 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:
1.3.1 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.
1.3.2 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.
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”.
1.3.4 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.
1.3.5 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.
1.3.6 Manufacturer Requirements
1.3.6.1 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.
1.3.7 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.

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KOZY HEAT FIREPLACES
2.0 SPECIFICATIONS
2.1 Heating Specifications
Natural Gas Propane
Maximum
Input Rating
40,000
Btu/h
11.72 kW
40,000 Btu/h
11.72 kW
Minimum
Input Rating
27,500 Btu/h
8.0594 kW
29,500 Btu/h
8.6455 kW
Manifold Pressure
(High)
3.5” WC
(0.87 kPa)
10” WC
(2.48 kPa)
Manifold Pressure
(Low)
1.6” WC
(0.40 kPa)
6.4” WC
(1.59 kPa)
Orifice Size (DMS)
3.20mm 1.90mm
2.1.1 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 your area regarding derate guidelines.
2.1.1.1 US Installations
Refer to the American Gas Association guidelines for the gas designed
appliances derating method. For elevations above 2,000’ (610m),
input ratings are to be reduced by 4% for each 1,000’ (305m) above
sea level.
2.1.1.2 Canadian Installations
When the appliance is installed at elevations above 4,500’ (1,372m),
the certified high altitude rating shall be reduced at the rate of 4% for
each additional 1,000’ (305m).
2.2 Electrical Specifications
Electrical specifications ONLY apply to optional fan #LX22-028MV
• The junction box in this appliance requires 120VAC, 60Hz,
and 6 Amps.
• Verify the household breaker is shut off prior to working on any
electrical lines.
SECTION 2 SPECIFICATIONS
Heating Specifications–Electrical Specifications

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KOZY HEAT FIREPLACES
2.3 Appliance Dimensions
SECTION 2 SPECIFICATIONS
Appliance Dimensions
FIGURE 2.1 LXL-22-MV Dimensions

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KOZY HEAT FIREPLACES
2.4 Safety Barrier Screen and Overlays
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. Co., Inc.’s barriers for this appliance.
Refer to section 7.1, SAFETY BARRIER SCREEN AND OVERLAY
INSTALLATION on page 28 for installation instructions.
SECTION 2 SPECIFICATIONS
Safety Barrier Screen and Overlays
FIGURE 2.2 Safety Barrier and Overlay Dimensions

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KOZY HEAT FIREPLACES
3.0 FRAMING
3.1 Installation Planning
•Alcove Installation allows the gas stove to be located within
a recessed section of a room. Refer to section 3.4, ALCOVE
INSTALLATION
on page 14 for more information.
•
Masonry Application allows the gas stove to sit inside an
existing masonry fireplace. Refer to section 3.5, MASONRY
APPLICATION on page 15 for more information.
• If planning to convert to propane, it is easier to complete the gas
conversion before installing the gas stove. See the # conversion
kit manual for complete conversion instructions. Refer to section
8.3, CONTROL BOARD REMOVAL AND INSTALLATION on
page 11 for access to the burner and pilot system before and
after installation.
3.1.1 Appliance Placement Considerations
WARNING: Due to high temperatures, the appliance should be located
out of traffic and away from furniture and draperies.
• This gas stove must be installed on a level surface capable of
supporting the gas stove and venting. Determine your vent
requirements before framing your appliance
• This appliance may be installed in a bedroom.
• Please be aware of the large amount of heat this gas stove will
produce when determining a location.
3.1.2 Floor Support and Protection
• The appliance must be placed directly on a wood or non-
combustible surface (not linoleum or carpet) extending the
entire depth and width of the gas stove.
• If this appliance is to be installed directly on carpeting, tile,
or other combustible material other than wood flooring, this
appliance shall be installed on a metal or wood panel extending
the full width and depth of the appliance.
• If the appliance is to be installed above floor level, a solid,
continuous platform must be constructed below the appliance.
SECTION 3 FRAMING
Installation Planning

SECTION 3 FRAMING
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KOZY HEAT FIREPLACES
3.2 Clearances to Combustibles
Clearances to Combustibles
See FIGURE 3.1 below for minimum clearances for typical installation options. Refer to FIGURE 3.2 (page 13) for rough-in clearances.
T ab le 3 .1 , M inim u m Appliance Clearances to Combustible M aterial
From appliance top to sidewall 3” 76mm
From appliance top to back wall 3” 76mm
From appliance top corner to wall 1-1/2” 38mm
Floor to ceiling 68-1/4” 1734mm
From appliance top to ceiling 36-1/4” 920mm
From top of horizontal pipe surface to ceiling 2-1/4” 57mm
14-7/16”
(443mm)
1½”
(38mm)
14-3/8”
(365mm)
3”
(76mm)
3”
(76mm)
1½”
(38mm)
14-7/16”
(443mm)
3”
(76mm)
3”
(76mm)
3”
(76mm)
FIGURE 3.1 Typical Installation Options

SECTION 3 FRAMING
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HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
Rough-in Vent Termination
3.3 Rough-in Vent Termination
This is a cold air transfer area. The gas stove rough-in 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.
Exterior vent termination location must be in compliance with section
5.2, MINIMUM TERMINATION CLEARANCES on page 20. DO NOT
RECESS THE VENT CAP INTO WALL OR SIDING.
IMPORTANT - METAL FAB VENT SYSTEM: When installing Metal Fab
vent pipe, an adapter must be used. This will increase the minimum
height for the center of the vent pipe by 3-1/4” (83mm) when framing
the wall pass through.
3.3.1 Clearances
• A minimum of 1” (25mm) clearance on all sides of the vertical
vent pipe must be maintained.
• A minimum of 1” (25mm) clearance from the top surface on the
horizontal pipe must be maintained.
• A minimum of 1”(25mm) clearance on the sides and bottom
surfaces on the horizontal pipe must be maintained.
• A minimum of 2-1/4” (57mm) clearance from the top of the
horizontal pipe to the ceiling is required. The horizontal pipe
after the wall pass-through must maintain a 1” (25mm) clearance
to combustibles on all surfaces of the pipe.
3.3.2 Vertical Terminations
Follow vent pipe manufacturer’s installation instructions for vertical
terminations.
• Attic insulation shields may be insulated using unfaced
insulation products listed as non-combustible per ASTM E 136.
3.3.3 Horizontal Terminations
IMPORTANT: Horizontal vent sections require 1/4” (6mm) rise for every
12” (305mm) of travel.
• Wall thimble products that comply with the required 1” (25mm)
clearances to combustibles must be installed for all horizontal
vent runs that pass through interior or exterior walls. These wall
thimble products may be insulated using unfaced insulation
products listed as noncombustible per ASTM E 136.
• 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 to maintain clearance requirements.
3.3.3.1 Wall Pass Through Information and Framing
1. Measure from floor level of the gas stove to the center of where
the vent pipe will penetrate the wall. The dimensions in FIGURE
3.2 is used with a Simpson DuraVent elbow.
2.
Cut and frame an opening in the wall to allow the vent system to
run level through the wall pass-through.
3.
Follow the vent pipe manufacturer’s installation instructions for
vent installation.
• Rigid pipe dimensions in FIGURE 3.2 reflect Simpson
Duravent 4” x 6-5/8” coaxial pipe. Other manufacturers product
dimensions may vary.
Natural Gas and Propane
Minimum Horizontal Venting
2
¼
”
Ceiling (57mm)
36
¼
”
(920mm)
68
¼
”
(1734mm)
62-5/8”
(1591mm)
FIGURE 3.2 Rough-in Dimensions for Minimum Horizontal Venting

SECTION 3 FRAMING
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HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
14-7/16”
(443mm)
3”
(76mm)
3”
(76mm)
3”
(76mm)
FIGURE 3.3 Traditional Alcove Framing
14”
(356mm)
Ceiling
Alcove front wall
3-11/16”
(94mm)
3-11/16”
(94mm)
8” (203mm) mantel
flush
with the bottom
of the alcove front wall
62-5/8”
(1591mm)
52”
(1321mm)
72”
(1829mm)
FIGURE 3.4 Alcove Front Wall Framing
Alcove Installation
3.4 Alcove Installation
Shown in FIGURE 3.3 is a top-down view of a traditional alcove
installation. The alcove installation may have a front wall, as shown in
FIGURE 3.4, to visually hide the vent pipe and vent elbow, as long as
required clearances are met.
Minimum clearances MUST be maintained in order to provide
adequate air circulation around the appliance and venting within
the alcove.

SECTION 3 FRAMING
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HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
6”
(152mm)
¾
” (19mm)
unlimited
35”
(889mm)
21
½
”
(546mm)
40
½
”
(1029mm)
3”
(76mm)
44”
(1118mm)
35”
(889mm)
FIGURE 3.5 Masonry Application
Masonry Application
3.5 Masonry Application
FIGURE 3.5 shown below is a masonry application where the gas
stove sits inside of a masonry fireplace.
As referenced in FIGURE 3.5, the 3/4” (19mm) mantel trim can start at
40-1/2” (1029mm) above the floor with a 6” (152mm) mantel starting
at 44” (1118mm) above the floor.
As referenced in FIGURE 3.5 , clearances to combustibles sided in
the front (such as a mantel leg or a sidewall) is 3” (76mm) from the
masonry fireplace opening with an unlimited projection.
There are no requirements for a hearth or non-combustible in front of
the gas stove.

SECTION 3 FRAMING
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3.6 Outdoor Covered Gas
3.6.2 Requirements
Outdoor CoveredGas Stove Installation
Stove Installation
An outdoor covered gas stove installation allows a gas stove to be
installed in an outdoor covered area, where the appliance is protected
from direct precipitation.
Follow the instructions and illustrations in this section for installation
procedures.
3.6.1 Safety Screen Barriers
Hussong Mfg. highly recommends to use black painted safety barriers
in outdoor installations. Other screen barriers that incorporate
a plated or patina finish are highly susceptible to oxidation and
discoloration.
• Calculate your roof overhang dimensions by following FIGURE
3.6 below.
• The continuous insulated building envelope and weatherproof
membrane are not to be interrupted by gas stove installation.
See
FIGURE 3.7 on page 17.
• Gas stove operation is approved from 40°F to 110°F.
• All wiring connections shall be in accordance with outdoor
requirements of NECA NFPA 70.
• All clearances and requirements in your appliance manual must
be adhered to.
A
B
C
C
The overhang (A) must be a minimum of 1/2 or
greater
of the roofline elevation (B) above the
base
of the gas stove.
The width of the overhang to each side of the
appliance
(C) must be a minimum of 1/2 or
greater
of the roofline elevation (B) above
the
base of the gas stove.
EXAMPLE: If roofline (B) is 10’ above the base of gas stove, the overhang (A) must be 5’
or greater. The width of the overhang to EACH side of the gas stove (C) must be 5’ or greater.
FIGURE 3.6 Outdoor Covered Gas Stove Install - 1
Side of
Gas Stove
Front of
Gas Stove

SECTION 3 FRAMING
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HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
Outdoor CoveredGas Stove Installation
INSIDE
Continuous insulated building
envelope and weatherproof
membrane are not to be interrupted
by gas stove installation
Minimum weatherproof
overhang in front and sides
OUTSIDE INSIDE
Free standing structure
(weatherproof enclosure)
FIGURE 3.7 Outdoor Covered Installation Guide - 2
Minimum
weatherproof
overhang in front and sides

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4.0 GAS LINE CONNECTION
4.1 Gas Conversion
The gas conversion kit is sold separately.
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.
This fireplace is manufactured for use with natural gas. Follow the
instructions included with the conversion kit if converting to propane.
4.2 Gas Line Installation
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 Z223.1. Commonwealth of Massachusetts installations must be
done by a licensed plumber or gas fitter.
NOTE: 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). For test
pressures equal to or less than ½ psi (3.5 kPa), the appliance must be
isolated from the gas supply piping system by closing its individual
manual shut-off valve.
• A listed (and Commonwealth of Massachusetts approved)
1/2” (13mm) tee handle manual shut-off valve and flexible gas
connector are to be connected to the 1/2” (13 mm) 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.
• Run gas line into fireplace. The gas line should be run to the
point of connection where the shut-off valve and flexible gas
line will connect. See FIGURE 2.1, LXL-22-MV DIMENSIONS
on page 9.
• Do not run gas line in a manner that would obstruct the optional
fan operation.
• For high altitude installations, consult the local gas distributor or
the authority having jurisdiction for proper rating methods.
SECTION 4 GAS LINE CONNECTION
Gas Conversion–Gas Line Installation
T ab le 4.1, Inlet Pressure Requirements
Gas Pressure Natural Gas Propane
Minimum Inlet
Pressure
5”WC (1.25 kPa)
7” WC (1.74 kPa )
recommended
11” WC (2.74 kPa)
recommended
Maximum Inlet
Pressure
10.5” WC (2.62 kPa) 13” WC (3.24 kPa)

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Lowest
discharge
opening
Approved cap
Minimum
12” (.30m)
Approved
vent pipe
x
12
Roof pitch = x/12
H - Minimum height from roof
to lowest discharge opening
FIGURE 5.1 Vertical Vent Cap Clearance
H
5.0 TERMINATION LOCATIONS
5.1 Vertical Vent Termination
WARNING: This gas appliance must not be connected to a chimney flue
serving a separate solid-fuel burning appliance.
Refer to FIGURE 5.1 below for vertical vent termination clearances.
SECTION 5 TERMINATION LOCATIONS
Minimum height (H) from roof
Roof Pitch Feet Meters
Flat to 6/12 1.0 0.30
Over 6/12 to 7/12 1.25 0.38
Over 7/12 to 8/12 1.5 0.46
Over 8/12 to 9/12 2.0 0.61
Over 9/12 to 10/12 2.5 0.76
Over 10/12 to 11/12 3.25 0.99
Over 11/12 to 12/12 4.0 1.22
Over 12/12 to 14/12 5.0 1.52
Over 14/12 to 16/12 6.0 1.83
Over 16/12 to 18/12 7.0 2.13
Over 18/12 to 20/12 7.5 2.27
Over 20/12 to 21/12 8.0 2.44

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#LXL-22-MV
R.1 4.20.2022
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
SECTION 5 TERMINATION LOCATIONS
5.2 Minimum Termination Clearances
Canadian installations US installations
AClearance above grade, veranda, porch, deck, or balcony
12” (30cm) 12” (30cm)
BClearance to window or door that may be opened 12” (30cm) 9” (23cm)
CClearance to permanently closed window (recommended to prevent condensation on
window)
12” (30cm)* 12” (30cm)*
D
Vertical clearance to ventilated soffit located above the terminal within a horizontal dis-
tance of 2’ (61cm) from the edge of the terminal
24” (61cm)* 24” (61cm)*
EClearance to unventilated soffit
12” (30cm)* 12” (30cm)*
FClearance to outside corner
0” (0cm)* 0” (0cm)*
GClearance to inside corner 0” (0cm)* 0” (0cm)
HClearance to each side of center line extended above meter/regulator assembly
3’(91cm) within a height
15’ (4.5m) above the meter/
regulator
assembly
*
IClearance to service regulator vent outlet 3’ (91cm)
*
J
Clearance to non mechanical air supply inlet to building or the combustion air inlet to any
other appliance
12” (30cm) 9” (23cm)
KClearance to mechanical air supply inlet 6’(1.83m) 3’ (91cm) above if within 10’
(3m) horizontally
Massachusetts: 10’ (3m)
L
Clearance above paved sidewalk or paved driveway located on public property 7’(2.13m)† *
MClearance under veranda, porch deck, or balcony
12” (30cm)‡ 12” (30cm)
NClearance between two horizontal terminations
12” (30cm) 12” (30cm)
OClearance between two vertical terminations (may be same height)
12” (30cm) 12” (30cm)
PAbove furnace exhaust or inlet
12” (30cm) 12” (30cm)
* Clearance in accordance with local installation codes and the requirements of the gas supplier.
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
VINYL SOFFIT, VINYL CEILING, AND VINYL OVERHANG DISCLAIMER: Clearances to heat resistant material (i.e. wood, metal). This does not include vinyl.
Hussong Manufacturing Co., Inc. will not be held responsible for heat damage caused from terminating under vinyl overhangs, vinyl ceilings, or vinyl
ventilated/unventilated soffits.
FIGURE 5.2 Vent Termination Locations and Clearances