Outdoor Lifestyles TWILIGHT-II-C User manual

1
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
Models:
Installation Manual
Installation and Appliance Setup
INSTALLER: Leave this manual with party responsible for use and operation.
CONSUMER: Retain this manual for future reference.
Twilight-II-C
NOTICE: DO NOT discard this manual!
This appliance may be installed as an OEM
installation in manufactured home (USA
only) or mobile home and must be installed
in accordance with the manufacturer’s
instructions and the Manufactured Home
Construction and Safety Standard, Title 24
CFR, Part 3280 in the United States, or the
Standard for Installation in Mobile Homes,
CAN/CSA Z240 MH Series, in Canada.
This appliance is only for use with the type(s)
of gas indicated on the rating plate. This
appliance is not convertible for use with other
gases, unless a certified kit is used.
In the Commonwealth of Massachusetts installation must be
performed by a licensed plumber or gas fitter.
See Table of Contents for location of additional Commonwealth
of Massachusetts requirements.
DANGER
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.
• DO NOT store or use gasoline or other flam-
mable vapors and liquids in the vicinity of this
or any other appliance.
• What 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 sup-
plier’s 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:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.

2Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
Safety Alert Key:
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Used to address practices not related to personal injury.
Table of Contents
Installation Standard Work Checklist. . . . . . . . . . . . . . . . . . . . 3
1 Product Specific and Important Safety Information
A. Appliance Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
B. Glass Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
C. Thermal Performance Data . . . . . . . . . . . . . . . . . . . . . . . . 4
D. Air Infiltration, Water Resistance and Structural Tests . . . 4
E. BTU Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
F. High Altitude Installations . . . . . . . . . . . . . . . . . . . . . . . . . . 5
G. Non-Combustible Materials Specification. . . . . . . . . . . . . . 5
H. Combustible Materials Specification . . . . . . . . . . . . . . . . . 5
I. Electrical Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
J. Requirements for the Commonwealth of Massachusetts. . 6
2 Getting Started
A. Design and Installation Considerations . . . . . . . . . . . . . . . 7
B. Tools and Supplies Needed . . . . . . . . . . . . . . . . . . . . . . . . 7
C. Inspect Appliance and Components. . . . . . . . . . . . . . . . . . 7
3 Framing and Clearances
A. Appliance Dimension Diagram. . . . . . . . . . . . . . . . . . . . . . 8
B. Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . 9
4 Termination Location and Vent Information
A. Chimney Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 Appliance Preparation
A. Removing Non-combustible Facing Material Assembly . . 12
B. Securing and Leveling the Appliance . . . . . . . . . . . . . . . . 12
C. Installing Non-combustible Facing Material
(Outdoor Side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6 Electrical Information
A. General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
B. Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7 Gas Information
A. Fuel Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
B. Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
C. Gas Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
D. High Altitude Installations . . . . . . . . . . . . . . . . . . . . . . . . . 20
E. Air Shutter Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8 Finishing
A. Mantel and Wall Projections. . . . . . . . . . . . . . . . . . . . . . . 22
B. Decorative Front Selection. . . . . . . . . . . . . . . . . . . . . . . . 23
C. Facing Material. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9 Appliance Setup
A. Fixed Glass Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
B. Remove the Shipping Materials . . . . . . . . . . . . . . . . . . . . 30
C. Clean the Appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
D. Lava Rock and Ember Placement . . . . . . . . . . . . . . . . . . 30
E. Install the Log Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . 31
F. Appliance Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
G. Install Trim and/or Surround . . . . . . . . . . . . . . . . . . . . . . . 33
10 Reference Materials
A. Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
= Contains updated information.



3
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
Installation Standard Work Checklist
Customer:
Lot/Address:
Model (circle one): Twilight-II-C
Comments: Further description of the issues, who is responsible (Installer/ Builder/ Other Trades, etc) and corrective
action needed _____________________________________________________________________________________
_________________________________________________________________________________________________
_________________________________________________________________________________________________
_________________________________________________________________________________________________
Comments Communicated to party responsible ____________________ by ______________________on ___________
(Builder / Gen. Contractor/) (Installer) (Date)
Appliance Install YES IF NO, WHY?
Required non-combustible board is installed. (Pg. 15) ___________________________
Veri¿ed clearances to combustibles. (Pg. 9) ___________________________
Fireplace is leveled and secured. (Pg. 13) ___________________________
Electrical Section 6 (Pg 16-19)
Unswitched power (110-120 VAC) provided to the appliance. ___________________________
Switch wires properly installed. ___________________________
Gas Section 7 (Pg 20-21)
Proper appliance for fuel type. ___________________________
Was a conversion performed? ___________________________
Leak check performed and inlet pressure veri¿ed. ___________________________
Veri¿ed proper air shutter setting for installation type. ___________________________
Finishing Section 8 (Pg 22-28)
Combustible materials not installed in non-combustible areas. ___________________________
Veri¿ed all clearances meet installation manual requirements. ___________________________
Mantels and wall projections comply with installation manual requirements. ___________________________
Appliance Setup Section 9 (Pg 29-33)
All packaging and protective materials removed (inside & outside of appliance). ___________________________
Refractories, logs, media and embers installed correctly. ___________________________
Glass assembly installed and secured. ___________________________
Accessories installed properly. ___________________________
Mesh, doors, or decorative front properly installed. ___________________________
Manual bag and all of its contents are removed from inside/under
the appliance and given to party responsible for use and operation. ___________________________
Started appliance and veri¿ed no gas leaks exist. ___________________________
This standard work checklist is to be used by the installer in conjunction with, not instead of, the instructions contained in this
installation manual.
2368-972 Rev. B 2/15
Î= Contains updated information.
Date Installed:
Location of Fireplace:
Installer:
Dealer/Distributor Phone #
Serial #:
Hearth & Home Technologies recommends the following:
• Photographing the installation and copying this checklist for your ¿le.
• That this checklist remain visible at all times on the appliance until the installation is complete.
ATTENTION INSTALLER:
Follow this Standard Work Checklist
WARNING! Risk of Fire or Explosion! Failure to install appliance according to these instructions can
lead to a ¿re or explosion.


4Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
This product is listed to ANSI standards for “Vented Gas
Appliances” and applicable sections of “Gas Burning
Heating Appliances for Manufactured Homes and Recre-
ational Vehicles”, and “Gas Fired Appliances for Use at
High Altitudes”.
A. Appliance Certification
NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.
This appliance is tested and approved as either supplemen-
tal room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.
NOTICE: This installation must conform with local codes.
In the absence of local codes you must comply with the
National Fuel Gas Code, ANSI Z223.1-latest edition in
the U.S.A. and the CAN/CGA B149 Installation Codes in
Canada.
1
1 Product Specific and Important Safety Information
E. BTU Specifications
D. Air Infiltration, Water Resistance and
Structural Tests
The Hearth & Home Technologies Twilight-II-C Indoor/
Outdoor Appliance unit was tested to the following ASTM
standards at the Stork Twin City Testing laboratory.
Air infiltration test ASTM:E283-(04). The sample was test-
ed at 1.57 psf (equivalent to a 25-mph windload). Water
resistance test ASTM:E331-00. The test specimen was
tested at the requested test pressures of 8.0 & 25.0 psf.
Structural test ASTM:E330-02. The unit was tested to a
design pressure of 50-psf, a test pressure of 75-psf.
Test Results
C. Thermal Performance Data
Model: Twilight-II-C
Sound Transmission
Class (STC)
Thermal Resistance
(R Value)
Thermal Conductivity
(K Value)
27 0.8hr-sq ft-ºF/BTU 1.25 BTU-in/hr-sq ft-ºF
Model Air Infiltration
(ASTM E283)
Water Resistance
(ASTM E331)
Structural Load
(ASTM E330)
Twilight-II-C
Indoor/Outdoor 0.07CFM/ft2 No leakage
@ 8psf & 25psf
No Blowout
@ 75psf
B. Glass Specifications
Tempered Glass (Interior Glass)
Hearth & Home Technologies appliances manufactured
with tempered glass may be installed in hazardous lo-
cations such as bathtub enclosures as defined by the
Consumer Product Safety Commission (CPSC). The
tempered glass has been tested and certified to the re-
quirements of ANSI Z97.1 and CPSC 16 CFR 1202
(Safety Glazing Certification Council SGCC# 1595 and
1597. Architectural Testing, Inc. Reports 02-31919.01
and 02-31917.01).
This statement is in compliance with CPSC 16 CFR Sec-
tion 1201.5 “Certification and labeling requirements”
which refers to 15 U.S. Code (USC) 2063 stating “…Such
certificate shall accompany the product or shall otherwise
be furnished to any distributor or retailer to whom the
product is delivered.”
Some local building codes require the use of tempered
glass with permanent marking in such locations. Glass
meeting this requirement is available from the factory.
Please contact your dealer or distributor to order.
Ceramic Glass (Exterior Glass)
This appliance is equipped with 5 mm ceramic glass. Re-
place glass only with 5 mm ceramic glass. Please contact
your dealer for replacement glass.
MODEL: Twilight-II-C
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Gas Appliance
STANDARD: ANSI Z21.50-2014 • CSA2.22-2014
Model
U.S. (0-2000 FT) or
Canada (2000-4500 FT)
Input
BTU/h
Orifice Size
(DMS)
Twilight-II-C (NG) US 38,000 32
CAN 34,200 33
Twilight-II-C (LP) US 36,000 50
CAN 33,300 51

5
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
G. Non-Combustible Materials Specification
Material which will not ignite and burn. Such materials are
those consisting entirely of steel, iron, brick, tile, concrete,
slate, glass or plasters, or any combination thereof.
Materials that are reported as passing ASTM E 136,
Standard Test Method for Behavior of Materials in
a Vertical Tube Furnace at 750 ºC shall be considered
non-combustible materials.
H. Combustible Materials Specification
Materials made of or surfaced with wood, compressed pa-
per, plant fibers, plastics, or other material that can ignite
and burn, whether flame proofed or not, or plastered or
unplastered shall be considered combustible materials.
I. Electrical Codes
NOTICE: This appliance must be electrically wired
and grounded in accordance with local codes or, in the
absence of local codes, with National Electric Code
ANSI/NFPA 70-latest edition or the Canadian Electric
Code CSA C22.1.
• A 110/120 VAC circuit for this product must be pro-
tected with ground-fault circuit-interrupter protection,
in compliance with the applicable electrical codes,
when it is installed in locations such as in bathrooms
or near sinks.
F. High Altitude Installations
NOTICE: If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility
or authorities having jurisdiction.
When installing above 2000 feet elevation:
• In the USA: Reduce input rate 4% for each 1000 feet
above 2000 feet.
• In CANADA: Reduce input rate 10% for elevations
between 2000 feet and 4500 feet. Above 4500 feet,
consult local gas utility.
Check with your local gas utility to determine proper
orifice size.

6Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
J. Requirements for the Commonwealth of
Massachusetts
For all side wall 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 seven (7)
feet above finished grade in the area of the venting, in-
cluding but not limited to decks and porches, the following
requirements shall be satisfied:
Installation of Carbon Monoxide Detectors
At the time of installation of the side wall horizontal 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 addi-
tion, the installing plumber or gas fitter shall observe that
a battery operated or hard wired carbon monoxide detec-
tor with an alarm 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 fu-
eled equipment is installed in a crawl space or an 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 dur-
ing 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 accor-
dance 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 permanent-
ly mounted to the exterior of the building at a minimum
height of eight (8) feet above grade directly in line with the
exhaust vent terminal for the horizontally vented gas fu-
eled heating appliance or equipment. The sign shall read,
in print size no less than one-half (1/2) in. in size, “GAS
VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OB-
STRUCTIONS”.
Inspection
The state or local gas inspector of the side wall horizon-
tally vented gas fueled equipment shall not approve the
installation unless, upon inspection, the inspector ob-
serves 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 fu-
eled 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.
Gas Equipment Venting System NOT Provided
When the manufacturer of a Product Approved side wall
horizontally vented gas fueled equipment does not pro-
vide 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 system” instructions
shall be included with the appliance or equipment in-
stallation instructions; and
• The “special venting systems” shall be Product Ap-
proved by the Board, and the instructions for that sys-
tem shall include a parts list and detailed installation
instructions.
A copy of all installation instructions for all Product Ap-
proved side wall horizontally vented gas fueled equip-
ment, 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.
See Gas Connection section for additional Common-
wealth of Massachusetts requirements.
Note: The following requirements reference various
Massachusetts and national codes not contained in this
document.

7
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
2
2 Getting Started
Installation and service of this appliance should be
performed by qualified personnel. Hearth & Home
Technologies suggests NFI certified or factory
trained professionals, or technicians supervised by
an NFI certified professional (www.nficertified.org).
A. Design and Installation Considerations
Hearth & Home Technologies direct vent gas appliances
are designed to operate with all combustion air siphoned
from outside of the building and all exhaust gases expelled
to the outside. No additional outside air source is required.
The Twilight-II-C has been carefully engineered to pro-
vide a unique fireplace experience. Since it is different
than any other product on the market, care must be taken
when installing this appliance so that our customer does
not experience undesirable performance or conditions.
1. Install the appliance according to this Installation man-
ual paying particular attention to flashing and sealing
instructions.
2. In the cold northern climates pay attention to expo-
sures and prevailing wind conditions when locating the
appliance, the same as you would for locating exterior
windows and doors.
The Twilight-II-C has the thermal characteristics of a high
quality window system. Temperatures near the appliance
will be cooler than what is realized with a fully insulated wall.
Operation of the appliance will eliminate any cool drafts
and will provide the room with a comfortable ambiance.
Installation MUST comply with local, regional, state and
national codes and regulations. Consult insurance carrier,
local building inspector, fire officials or authorities having
jurisdiction over restrictions, installation inspection and
permits.
Before installing, determine the following:
• Where the appliance is to be installed.
• Gas supply piping requirements.
• Electrical wiring requirements.
• Framing and finishing details.
• Whether optional accessories—devices such as a fan,
wall switch, or remote control—are desired.
C. Inspect Appliance and Components
• Carefully remove the appliance and components from
the packaging.
• The vent system components and decorative doors and
fronts may be shipped in separate packages.
• If packaged separately, the log set and appliance grate
must be installed.
• Report to your dealer any parts damaged in shipment,
particularly the condition of the glass.
•Read all of the instructions before starting the instal-
lation. Follow these instructions carefully during the
installation to ensure maximum safety and benefit.
WARNING! Risk of Fire or Explosion! Damaged parts
could impair safe operation. DO NOT install damaged, in-
complete or substitute components. Keep appliance dry.
B. Tools and Supplies Needed
Before beginning the installation be sure that the following
tools and building supplies are available.
Tape measure Framing material
Pliers High temperature caulking material
Hammer Phillips screwdriver
Gloves Framing square
Voltmeter Electric drill and bits (1/4 in.)
Plumb line Safety glasses
Level Reciprocating saw
Manometer Flat blade screwdriver
Non-corrosive leak check solution
1/2 - 3/4 in. length, #6 or #8 Self-drilling screws
One 1/4 in. female connection (for optional fan).
Hearth & Home Technologies disclaims any responsibility
for, and the warranty will be voided by, the following actions:
• Installation and use of any damaged appliance or vent
system component.
• Modification of the appliance or vent system.
• Installation other than as instructed by Hearth & Home
Technologies.
• Improper positioning of the gas logs or the glass door.
• Installation and/or use of any component part not approved
by Hearth & Home Technologies.
Any such action may cause a fire hazard.
WARNING! Risk of Fire, Explosion or Electric Shock!
DO NOT use this appliance if any part has been under
water. Call a qualified service technician to inspect the
appliance and to replace any part of the control system
and/or gas control which has been under water.
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. For
assistance or additional information, consult a qualified
service technician, service agency or your dealer.

8Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
3
3 Framing and Clearances
A. Appliance Dimension Diagram
Dimensions are actual appliance dimensions. Use for reference only.
Figure 3.1 Appliance Dimensions
A
B
GAS LINE
ACCESS
CC
D
G
H
I
J
F
E
ELECTRICAL
ACCESS
U
T* = MEASURE TO
BOTTOM OF LIP
AS SHOWN IN U
RT*
Q
S
OUTDOOR VIEW
P
O
L
M
INDOOR VIEW
KN
OUTDOOR
OUTDOOR
Location Inches Millimeter
A 2-1/4 57
B 4-3/4 121
C 1/2 13
D 43 1092
E 24 610
F 46-7/8 1191
G 46-7/8 1191
H 9-1/2 241
I 2-1/2 64
J 4-1/2 114
K 32-5/8 829
Location Inches Millimeter
L 36-1/4 921
M 41-7/8 1064
N 21-1/2 547
O 6-1/8 155
P 38-5/8 981
Q 42-1/8 1070
R 21-1/2 546
S 35-5/8 905
T 8 203
U 1-1/4 32


9
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
B. Clearances to Combustibles
When selecting a location for the appliance it is important
to consider the required clearances to walls (see Figure
3.2).
WARNING! Risk of Fire or Burns! Provide adequate
clearance around air openings and for service access.
Due to high temperatures, the appliance should be lo-
cated out of traffic and away from furniture and draperies.
Figure 3.2 Appliance Locations
NOTICE: Illustrations reflect typical installations and are
FOR DESIGN PURPOSES ONLY. Illustrations/diagrams
are not drawn to scale. Actual installation may vary due to
individual design preference.
WARNING! Risk of Fire! The exterior side of the TWI-
LIGHT-II-C CANNOT be recessed into the framing.
GLASS EXTERIOR INSULATED ENVELOPE
GLASS
A
B
B
D
C* = 24 INCH (MAX.)
B
GLASS FLUSH TO EXTERIOR INSULATED ENVELOPE
GLASS
E
C* NOTE: Appliance may be installed flush on exterior, interior or
anywhere in between. Any projection of the appliance interior
or exterior must have a properly constructed chase surround-
ing the appliance. The exterior must have proper insulating,
flashing and finishing to ensure an insulated envelope.
FLUSH
TO INTERIOR
PROJECTION
C* = 0 INCH (MIN.)
WARNING! Risk of Fire! The exterior side of the TWILIGHT-II-C
CANNOT be recessed into the framing.
Refer to Section 8.A for mantel and wall projection information.
Consider the mantel or cabinet system to be installed and
comply with the necessary requirements for elevated hearth.
Refer to instructions included with cabinet system.
AB C* DE
Minimum Minimum Minimum Maximum Minimum -
Inches 43 1/2 0 24 36 43
Millimeters 1092 13 0 610 914 1092
* = C dimension may be any length from 0 to 24 inches.

10 Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
Figure 3.3 Clearances to Combustibles
H
K
G
F
J
I
Note: Framing dimensions assume use of
1/2 inch thick wall covering materials on
exterior of framing only, and NO sheetrock
on interior of framing.
From top of hood to
ceiling (interior) or
overhang (exterior).
Figure 3.4 Exterior View - Finishing Material Clearances
MINIMUM CLEARANCES
Vinyl Non-vinyl
A36 in. 12 in.
B64-5/16 in. 35-5/16 in.
OVERHANG
A
A
B
SIDING SIDING
SIDING
FINISHING MATERIALS
A
INTERIOR
FRAMING
EXTERIOR
FRAMING
E
D
C
AB
NOTICE: Install appliance on hard metal or wood surfaces
extending full width and depth. DO NOT install directly
on carpeting, vinyl, tile or any combustible material other
than wood.
WARNING! Risk of Fire! Do not install appliance against
vapor barriers or exposed insulation. Prevent contact with
sagging or loose insulation.
• Locate and install appliance to all clearance specifications
in manual.
• The chase must be properly blocked to prevent blown
insulation or other combustibles from entering and
making contact with fireplace.
• Failure to maintain airspace may cause overheating and
a fire.
• Reference Figure 3.2, Figure 3.3, and Figure 3.4 for
clearance specifications.
CLEARANCES TO COMBUSTIBLES:
ABCD E F G H IJK
Exterior
Rough
Opening
(Height)
Interior
Rough
Opening
(Height)
Rough
Opening
(Depth)
Rough
Opening
(Width)
Framing
for non-
combustible
material
Clearance
to Ceiling
(INTERIOR)
Clearance to Overhang
(EXTERIOR) Combustible
Floor
Combustible
Flooring
Standoff
Height
Interior
Standoff
Height
Exterior
Sides of
Appliance
Non-Vinyl Vinyl
Inches 47-5/8 47-5/8 23 44 46-1/8 35-3/4 35-5/16 64-5/16 0 0 9-1/2 9-1/2 1/2
mm 1210 1210 584 1118 1172 908 897 1634 0 0 241 241 13
Note: Verify that tabs on insulation bracket are in an upright
position.
Finishing Material Clearances

11
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
Figure 4.3 Minimum Clearances for Termination
FP = APPLIANCE OPENING
X= AIR SUPPLY INLET
= AREA WHERE APPLIANCE IS NOT PERMITTED
A. Chimney Diagram
4
4 Termination Location and Vent Information
QMIN RMAX
TWILIGHT-II-C 10 feet 2 x Q ACTUAL
1 additional terminations Q + 3 feet 1 x Q ACTUAL
2 additional terminations Q + 6 feet 2/3 x Q ACTUAL
3 additional terminations Q + 9 feet 1/2 x Q ACTUAL
RMAX = (2 / # caps plus appliance) x QACTUAL
O
N
P
R
Q
FP
A = 0 inches...................clearances above grade, veranda,
porch, deck or balcony
B =
12 inches.................clearance to window or door that
may be opened, or to permanently
closed window
C = 35-5/16 inches ........clearance below unventilated soffit
35-5/16 inches ........clearance below ventilated soffit
64-5/16 inches........clearance below vinyl soffits and
electrical service
D = 9 inches...................clearance to outside corner
E = 12 inches.................clearance to inside corner
F = 3 ft. (Canada)..........not to be installed above a gas me-
ter/regulator assembly within 3 feet
horizontally from the center-line of
the regulator
G = 3 ft ...........................clearance to gas service regulator
vent outlet
H = 9 inches (U.S.A)
12 inches (Canada) .clearance to non-mechanical (un-
powered) air supply inlet, combus-
tion air inlet or direct-vent termina-
tion
i = 3 ft. (U.S.A.)
6 ft. (Canada)...........clearance to a mechanical (pow-
ered) air supply inlet
All mechanical air intakes within 10 feet of a termination cap
must be a minimum of 3 feet below termination.
J = 54 in. ...................... On public property: clearance
above paved sidewalk or a paved
driveway.
A vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family dwellings
and serves both dwellings.
Electrical
Service
V
K
V K
V
L
C
V
N = 6 inches ........... non-vinyl sidewalls
12 inches ......... vinyl sidewalls
O = 18 inches ......... non-vinyl soffit and overhang
42 inches ......... vinyl soffit and overhang
P = 8 ft.
Covered Alcove Applications
(Spaces open only on one side and with an overhang)
CAUTION! Risk of Burns! Terminations are HOT, consider
proximity to doors, traffic areas or where people may pass or
gather (sidewalk, deck, patio, etc.).
• Local codes or regulations may require different clearances.
• Vent system termination is permitted in porch areas with
two or more sides open.
• Hearth & Home Technologies assumes no responsibility
for the improper performance of the appliance when the
venting system does not meet these requirements.
• Vinyl protection kits are suggested for use with vinyl siding.
M = 35-5/16 inches............ clearance under veranda, porch, deck,
balcony or overhang
64-5/16 inches .......vinyl or composite overhang
Permitted when veranda, porch, deck or balcony is fully open
on a minimum of 2 sides beneath the floor.
K = 6 inches.................clearance from sides of electrical
service
L = 12 inches................clearance above electrical service
Location of the vent termination must not interfere with access to the
electrical service.
C
JB
D
B
F
B
A
E
FP
M
H or i
G
X
H
A
H
FP
FP
FP
FP
FP
FP
FP FP FP
This appliance is approved for installation onto screened porches
with the following guidelines:
NOTE: There may be some odor and small amounts of soot
associated with venting the TWILIGHT-II-C onto a screened porch.
Ensuring good cross draft ventilation and routine maintenance of
the appliance will maximize comfort and cleanliness.
Minimum porch area: 96 square feet
Minimum ceiling height: 92 inches
Minimum two walls must be screened
Minimum top of screen height, side walls: 6 ft. 8 in.
Minimum screen area: 64 square feet

12 Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
5
5 Appliance Preparation
Fire Risk.
• Prevent contact with sagging, loose
insulation.
• Do NOT install against vapor barriers or
exposed insulation.
B. Securing and Leveling the Appliance
Placing Metal Hearth Strip
The metal hearth strip (approximately 46 inches x 4 inches)
is used to provide added protection where appliance and
outer structure meet.
• Place a generous bead of silicone caulk into the corner
of the protective hearth strip.
• Place the metal strip onto the structure where the outer
edge of the appliance will sit. See Figure 5.1. It should
overlap building paper to prevent water infiltration.
Figure 5.1 Positioning the Metal Hearth Strip
METAL HEARTH STRIP
UNDER EDGE OF
APPLIANCE
APPLY HIGH TEMPERATURE SEALANT
(300 °F/149 °C min.)
BOTH SIDES
APPLIANCE
EXTERIOR
A. Removing Non-combustible Facing Ma-
terial Assembly
The non-combustible assembly is located on right-hand
side of appliance (when looking from outdoor side of
appliance).
1. Hold non-combustible pieces in place.
2. Remove and save two screws from upper bracket.
3. Remove non-combustible pieces.
4. Remove and save three screws from lower bracket.
5. Discard brackets.
6. Replace screws in holes where brackets were attached
to appliance.
WARNING
NOTICE: Handle non-combustible pieces with care.
• Non-combustible pieces may chip or crack if dropped
or impacted.
• Avoid damaging protruding edges on outdoor side of
appliance.
Placing Insulation in Framing
Insulation material is shipped with this appliance. It is
packaged and placed on top of the appliance.
• Split the insulation material into four pieces.
• Place the insulation material on the top (two pieces) and
sides (one piece per side) of the appliance, between the
appliance and the framing studs. See Figure 5.2.

13
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
FIREPLACE
FLANGE
APPLY HIGH
TEMPERATURE
SILICONE SEALANT
TO CORNER EDGES
BEND IN
FLANGE
Figure 5.2 Proper Positioning, Leveling and Securing of
an Appliance
NOTE: The exterior side of the appliance can protrude
outward. It MUST NOT be recessed into the framing. Caulk
behind all flanges before securing to the exterior.
Placing and Securing Appliance
Place the appliance into position. Make sure flashing edges
on the outdoor surround fit up tight to the framing.
The diagram shows how to properly position, level, and
secure the appliance. See Figure 5.2. Nailing tabs are
provided to secure the appliance to the framing members.
• Caulk behind flanges before securing to framing.
• Place the appliance into position.
• Level the appliance from side to side and front to back.
• Shim the appliance as necessary. It is acceptable to
use wood shims.
• Keep nailing tabs flush with the framing.
• Secure the appliance to the framing by using nails or
screws through the nailing tabs.
Placing Flashing and Sheathing
Apply high temperature silicone sealant to corner edges
of fireplace flange. See Figure 5.3).
Figure 5.3
Figure 5.4
Install outdoor flashing header (sheet metal piece removed
from shipping pallet). Place over upper portion of shroud
flange. Line up holes on shroud sides. See Figure 5.4.
Do NOT notch into the framing around the appliance spacers.
CAUTION
APPLIANCE
EXTERIOR
SECURE TO
FRAMING
SECURE TO
FRAMING IN A MINIMUM
3 PLACES PER SIDE
INSULATION
(TOP AND SIDES)
Seal flashing to exterior of building using high tempera-
ture caulk. Attach to building using holes provided on the
top of the left and right sides of outdoor flashing. See
Figure 5.4.
HEADER
FLASHING
(INSTALLED
CORRECTLY)
SCREW
LOCATIONS
S
LIDE
O
UTD
OO
R FLA
S
HIN
G
DOWNWARD INTO POSITION

14 Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
APPLIANCE
TL-TRIM KIT
HOOD
TOP HOOD
TOP OF
FIREPLACE
16-5/16 in.
WALL STUD
HOUSEWRAP
INSULATION
HOUSEWRAP **
(BUILDING
PAPER) OVERLAP
FLASHING 1 in.
SHEATHING,
COMBUSTIBLE
FIREPLACE
HEADER
INSULATED
FRAMING
STANDOFF
NON-COMBUSTIBLE
*
SHEATHING
10-7/8 in.
FLASHING
HEADER
Apply housewrap or building paper
For placement of combustible housewrap or building pa-
per and non-combustible sheathing for the exterior wall
see Figures 5.5 and 5.6.
Special care should be taken when choosing building
materials for weather proofing (i.e. building wraps, seal-
ant tapes, liquid sealants, rubberized flashings, etc.).
All sealant materials or building wraps installed within 6
inches of the top and 1 inch on the sides of the fireplace
surround must be approved to a minimum temperature
of 225 ºF continuous exposure. Consult the material’s
manufacturer to ensure product compliance.
Figure 5.6
METAL FLASHING
TOP OF SURROUND
SIDE OF SURROUND
1 IN.
6 IN.
Figure 5.5. Exterior View without Non-combustible Sheathing Shown
* NOTE: All finishing materials on top of exterior sheathing
must be non-combustible for a minimum of 10-7/8 inches
above and 2-3/4 inches on both sides of the exterior face of
the appliance. This non-combustible finishing material can
be up to a maximum of 6 inches thick (6 inches maximum
horizontal overhang) to allow for brick and stone alcoves
(see Figure 5.5).
** NOTE: Combustible house wrap or building paper MUST
NOT extend over the outside of non-combustible sheath-
ing, and MAY extend over the flashing behind non-com-
bustible sheathing a maximum of 1 inch. Use high temp
silicone or sealant recommended by the manufacturer of
the housewrap to seal between combustible sheathing
house wrap and non-combustible sheathing. The sealant
material used within 6 inches of the top and 1 inch on the
sides of the fireplace surround must be approved to a
minimum temperature of 225 ºF continuous exposure.
Figure 5.7 Exterior Installation Prior to Finishing
Risk of Fire
• Non-combustible clearances must be main-
tained.
• Sheetrock, wood or other combustibles must
NOT be used as sheathing or facing in the non-
combustible zone.
• See Sections 3 and 8 for proper clearances.
• See Section 1 for combustible /non-combusti-
ble definitions.
Once the appliance is in place use enough high tempera-
ture silicone sealant or manufacturer specified sealant
(approved to a minimum of 225 ºF) to make a water tight
seal between outdoor surround and exterior sheathing.
Face the perimeter of the appliance with non-combustible
sheathing over shroud flanges and flashing. See Figure
5.7 for non-combustible zone.
WARNING
10-7/8 in.
= NON-COMBUSTIBLE ZONE
2-3/4 in. 2-3/4 in.
= SHEATHING
= 1 INCH HOUSEWRAP OVERLAP
FLASHING
SHEATHING
NON-COMBUSTIBLE ZONE

15
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
C. Installing Non-combustible Facing Mate-
rial (Outdoor Side)
• Attach the left and right side pieces to the framing mem-
bers. (See Figure 5.9).
Figure 5.8 Attaching Non-combustible Facing Material
(Outdoor Side Only)
• Use a wet or dry towel or soft brush to remove dust or
dirt from facing material.
• Apply a non-combustible adhesive to attach tile, stone
or other non-combustible finishing materials per manu-
facturer’s instructions.
Figure 5.9 Complete Installation of Non-combustible
Facing Material (Outdoor Side)
Fire Risk.
• Follow these instructions exactly.
• Facing materials must be installed properly to
prevent fire.
• No materials may be substituted
without authorization by Hearth & Home
Technologies.
• Center and attach two top boards (the two shorter pieces)
to the framing members. See Figure 5.8.
• Use fasteners from fastener packet (in manual bag) in
shaded areas (see Figure 5.8).
• Use regular sheetrock screws in non-shaded areas.
WARNING
Apply fasteners from
fastener packet
in these areas.
47-5/8 in.
48-5/8 in.
NON-COMBUSTIBLE
FACING MATERIAL

16 Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
A. General Information
WARNING! Risk of Shock or Explosion! DO NOT wire
110V to the valve or to the appliance wall switch. Incorrect
wiring will damage controls.
NOTICE: This appliance must be electrically wired
and grounded in accordance with local codes or, in the
absence of local codes, with National Electric Code
ANSI/NFPA 70-latest edition or the Canadian Electric
Code CSA C22.1.
• Wire the appliance junction box to unswitched 110/120
VAC. This is required for proper operation of the
appliance (Intellifire ignition).
• A 110/120 VAC circuit for this product must be protected
with ground-fault circuit-interrupter protection, in
compliance with the applicable electrical codes, when
it is installed in locations such as in bathrooms or near
sinks.
• Low voltage and 110/120 VAC voltage cannot be shared
within the same wall box.
6
6 Electrical Information
Figure 6.1 Junction Box Detail
NOTICE: DO NOT wire
110/120 VAC to wall
switch.
GREEN WIRE
INSIDE BOX
14/2WG
COPPER GROUND
ATTACHED TO GRN SCREW
WITH GRN WIRE
BLK
WHT
WHT BLK
HEAT SHIELD
Junction Box Installation
If the box is being wired from the OUTSIDE of the appliance:
• Install the Romex™ connector (not included with
appliance) in the side wrap.
• Loosen two screws on the Romex connector, feed the
necessary length of wire through the connector and
tighten the screws.
• Make all necessary wire connections.
If the box is being wired from the INSIDE of the appliance:
• Remove the screw attaching the junction box to the
outer shell, rotate the junction box inward to disengage
it from the outer shell (see Figure 6.1).
• Pull the electrical wires from outside the appliance
through this opening into the valve compartment.
• Loosen the two screws on the Romex connector, feed
the necessary length of wire through the connector and
tighten the screws.
• Make all necessary wire connections to the receptacle
and assemble the receptacle and cover to the junction
box.

17
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
Electrical Service and Repair
WARNING! Risk of Shock! Label all wires prior to dis-
connection when servicing controls. Wiring errors can
cause improper and dangerous operation. Verify proper
operation after servicing.
WARNING! Risk of Shock! Replace damaged wire with
type 105 ºC rated wire. Wire must have high temperature
insulation.
Figure 6.2 Fan Wiring Diagram
Optional Accessories
Optional fan and remote control kits require that 110/120
VAC be wired to the factory installed junction box before
the appliance is permanently installed (see Figure 6.2).
Fan Installation
To provide best airflow, we recommend positioning fan
on the left side (as viewed from appliance interior side
(see Figure 6.3). NOTE: It is recommended fan be in-
stalled prior to gas line installation for ease of installation.
Wall Switch
Position the wall switch in the desired position on a wall.
Run a maximum of 25 feet (7.8 m) or less length of 18
A.W.G. minimum wire and connect it to the appliance ON/
OFF switch pigtails.
NOTE: If any of the original wire as supplied
with the appliance must be replaced, it must be
replaced with the type 105oC rated wire.
Figure 6.3 Fan location
FAN
DRIP
TRAY
SEE DETAIL A
WIRE LEAD
2 FEMALE ENDS
PLUG AND WIRE
ASSEMBLY
JUNCTION BOX
6 FT.
APPROX.
TEMPERATURE
SENSOR SWITCH
FAN SPEED
CONTROL
(RHEOSTAT)
DETAIL A
WIRE LEAD
1 MALE END
1 FEMALE END
6 FT.
APPROX.
FAN KIT
#GFK-160T
APPLIANCE
INTERIOR
SIDE

18 Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
B. Wiring Requirements
Intellifire Ignition System Wiring
• Wire the appliance junction box to 110/120 VAC for
proper operation of the appliance.
WARNING! Risk of Shock or Explosion! DO NOT wire
IPI controlled appliance junction box to a switched circuit.
Incorrect wiring will override IPI safety lockout.
• Refer to Figure 6.4, Intellifire Pilot Ignition (IPI) Wiring
Diagram.
• This appliance is equipped with an Intellifire control valve
which operates on a 3 volt system.
• Plug the 3-volt AC transformer into the appliance junction
box to supply power to the unit OR install two D cell
batteries (not included) into the battery pack before use.
NOTICE: Batteries should not be placed in the battery
pack while using the transformer. Remove batteries before
using the transformer, and unplug the transformer before
installing the batteries. Battery polarity must be correct or
module damage will occur.
Figure 6.4 Intellifire Pilot Ignition (IPI) Wiring Diagram
NOTE: 1. Ignition module, valve, pilot, and wall switch operate on 3 volts.
Uninterrupted 120 VAC is required at junction box unless equipped with battery back-up.
IGNITION MODULE
3 VAC
TRANSFORMER
3 VAC
GRN
ORG
INTERMITTENT
PILOT
IGNITOR
IGNITION
MODULE
(3V)
ON/OFF
WALL
SWITCH
LOW VOLTAGE
PLUG-IN
3V TRANSFORMER
NEUTRAL HOT
GROUND
FLAME SPARKER/
SENSOR
REMOTE
CONTROL
SEE NOTE 1
ORG
WHT
VALVE
PIGGYBACK
ON/OFF SWITCH
WHITE WIRE
CAN BE
PLUGGED
INTO ANY
OF #1-#5
LOCATIONS
ON THE
NEUTRAL SIDE
BLACK WIRE CAN BE
PLUGGED INTO ANY OF
#1 - #5 LOCATIONS
ON THE HOT SIDE
VALVE
PLUG IN
GROUND TO
FIREPLACE
CHASSIS
I
S
BRN
BRN
BRN
BRN WIRE
ASSEMBLY
JUMPER WIRE
Note: To operate the appliance without a wall control
or remote control, connect the ON/OFF switch located
inside the control cavity of the appliance.

19
Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
Connecting to the Appliance
Wire 110V to electrical junction box.
Do NOT wire 110/120 VAC to valve.
Do NOT wire 110/120 VAC to wall switch.
• Incorrect wiring will damage millivolt valves.
• Incorrect wiring will override IPI safety lockout
and may cause explosion.
• This appliance may be used with a wall switch or a remote
control.
WARNING
Wall Switch Installation for Fan (Optional)
If the box is being wired to a wall mounted switch for use
with a fan (See Figure 6.5):
• The power supply for the appliance must be brought into
a switch box.
• The power can then be supplied from the switch box to
the appliance using a minimum of 14-3 with ground wire.
• At the switch box connect the black (hot) wire and red
(switch leg) wire to the wall switch as shown.
• At the appliance connect the black (hot), white (neutral)
and green (ground) wires to the junction box as shown.
• Add a 1/4 in. insulated female connector to the red
(switch leg) wire, route it through the knockout in the face
of the junction box, and connect to the top fan switch
connector (1/4 in. male) as shown.
Red
Switch
Switch Box
Red
Black
Black
Green Green
White
Power
Supply
Wires
White
Red
Black
Green
White
Minimum 14-3 AWG
with Ground
Junction Box
Knockout
Figure 6.5 Junction Box Wired to Wall Switch or BC10
• Keep wire lengths short as possible by removing any
excess wire length.
• Low voltage and 110/120 VAC voltage cannot be shared
within the same wall box.
Note: To operate the appliance without a wall control
or remote control, connect the ON/OFF switch located
inside the control cavity of the appliance. See Figure 6.4.

20 Outdoor Lifestyles by Hearth & Home Technologies • Twilight-II-C Installation Manual • 2368-970 Rev. C • 2/15
A. Fuel Conversion
• Make sure the appliance is compatible with available gas
types.
• Conversions must be made by a qualified service
technician using Hearth & Home Technologies specified
and approved parts.
B. Gas Pressure
• Optimum appliance performance requires proper input
pressures.
• Gas line sizing requirements will be determined in ANSI
Z223.1 National Fuel Gas Code in the USA and CAN/
CGA B149 in Canada.
• Pressure requirements are:
C. Gas Connection
• Refer to Figure 3.1 for location of gas line access in
appliance.
• Gas line may be run through knockout(s) provided.
• The gap between supply piping and gas access hole
may be caulked with caulk with a minimum of 300
ºF continuous exposure rating or stuffed with non-
combustible, unfaced insulation to prevent cold air
infiltration.
• Ensure that gas line does not come in contact with outer
wrap of the appliance. Follow local codes.
• Pipe incoming gas line into valve compartment.
Note: If installing optional fan, use factory-supplied flex
ball valve assembly to connect gas line to valve. Hard-
pipe connected directly to valve will not leave the amount
of space required for proper fan installation.
• Connect incoming gas line to the 1/2 in. (13 mm)
connection on manual shutoff valve.
WARNING! Risk of Fire or Explosion! Support control
when attaching pipe to prevent bending gas line.
• A small amount of air will be in the gas supply lines.
WARNING! Risk of Fire or Explosion! Gas build-up dur-
ing line purge could ignite.
• Purge should be performed by qualified service
technician.
• Ensure adequate ventilation.
• Ensure there are no ignition sources such as sparks
or open flames.
Light the appliance. It will take a short time for air to purge
from lines. When purging is complete the appliance will
light and operate normally.
WARNING! Risk of Fire, Explosion or Asphyxiation!
Check all fittings and connections with a non-corrosive
commercially available leak-check solution. DO NOT use
open flame. Fittings and connections could have loos-
ened during shipping and handling.
WARNING! Risk of Fire! DO NOT change valve settings.
This valve has been preset at the factory.
WARNING! Risk of Fire or Explosion! High pressure
will damage valve. Low pressure may cause explosion.
• Verify inlet pressures. Verify minimum pressures when
other household gas appliances are operating.
• Install regulator upstream of valve if line pressure is
greater than 1/2 psig.
7
7 Gas Information
Gas Pressure Natural Gas Propane
Minimum inlet pressure 5.0 in. w.c. 11.0 in. w.c.
Maximum inlet pressure 10.0 in. w.c. 13.0 in. w.c.
Manifold pressure 3.5 in. w.c. 10.0 in. w.c.
Note: Have the gas supply line installed in accordance with
local codes, if any. If not, follow ANSI 223.1. Installation
should be done by a qualified installer approved and/or
licensed as required by the locality. (In the Commonwealth
of Massachusetts installation must be performed by a
licensed plumber or gas fitter).
Note: A listed (and Commonwealth of Massachusetts ap-
proved) 1/2 in. (13 mm) T-handle manual shut-off valve
and flexible gas connector are connected to the 1/2 in. (13
mm) control valve inlet.
• If substituting for these components, please consult
local codes for compliance.
D. High Altitude Installations
NOTICE: If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility
or authorities having jurisdiction.
When installing above 2000 feet elevation:
• In the USA: Reduce burner orifice 4% for each 1000 feet
above 2000 feet.
• In CANADA: Reduce burner orifice 10% for elevations
between 2000 feet and 4500 feet. Above 4500 feet,
consult local gas utility.
Fire Risk.
Explosion Hazard.
High pressure will damage valve.
• Disconnect gas supply piping BEFORE
pressure testing gas line at test pressures
above 1/2 psig.
• Close the manual shutoff valve BEFORE
pressure testing gas line at test pressures
equal to or less than 1/2 psig.
WARNING