Heat & Glo LifeStyle Twilight-II User manual

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/05 1
Model:
Twilight-II*
Owner’s Manual
Installation and Operation
*Does not ship with interior or
exterior door, or TL-Trim kit.
These items must be
purchased separately.
• Donotstore orusegasoline orotherflamma-
blevapors and liquidsin the vicinityof this or
anyother appliance.
• What to do if you smell gas
- Donot trytolight anyappliance
- Do not touch any electrical switch. Do not
useanyphoneinyour building.
- Immediately call your gas supplier from a
neighbor’sphone.Followthegassupplier’s
instructions.
- If you cannot reach your gas supplier, call
thefire department.
• Installationandservicemustbeperformedby
aqualifiedinstaller,serviceagency,orthegas
supplier.
WARNING: Iftheinformationinthese
instructionsis not followed exactly, afire
or explosion may result causing proper-
ty damage, personal injury, or death.
This appliance has been supplied with an integral barrier
to prevent direct contact with the fixed glass panel. Do
NOT operate the appliance with the barrier removed.
Contact your dealer or Hearth & Home Technologies if the
barrier is not present or help is needed to properly install one.
HOT!DONOTTOUCH.
SEVEREBURNSMAYRESULT.
CLOTHINGIGNITIONMAYRESULT.
WARNING
• Keep children away.
• CAREFULLY SUPERVISE children in same room as
appliance.
• Alert children and adults to hazards of high
temperatures.
• Do NOT operate with protective barriers open or
removed.
• Keep clothing, furniture, draperies and other
combustibles away.
Glass and other surfaces are hot during
operation and cool down.
DO NOT DISCARD THIS MANUAL
CAUTION
Important operating and
maintenance instruc-
tions included.
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 instruc-
tions and the manufactured home construction and safety
standard, Title 24 CFR, Part 3280 or Standard for Installa-
tion in Mobile Homes, CAN/CSA Z240MH.
This appliance is only for use with the type(s) of gas indi-
cated on the rating plate.
Installation and service of this appliance should be
performed by qualified personnel. Hearth & Home
TechnologiessuggestsNFIcertified orfactory-trained
professionals, or technicians supervised
by an NFI certified professional.
•••
DO NODO NO
DO NODO NO
DO NOTT
TT
T
DISCARDDISCARD
DISCARDDISCARD
DISCARD
IntheCommonwealthof Massachusetts:
• installationmustbe performed byalicensed plumber or
gas fitter;
• a CO detector shall be installed in the room where the
applianceis installed.
Read, understand and follow
these instructions for safe
installation and operation.
Leave this manual with
party responsible for
use and operation.
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Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/052
Congratulations
Listing Label Information/Location
Model Name:___________________________________________ Datepurchased/installed: _________________
Serial Number: _________________________________________ Location on appliance: ____________________
Dealership purchased from: _______________________________ DealerPhone: __________________________
Notes: _______________________________________________________________________________________
____________________________________________________________________________________________
Congratulationson selecting a Heat & Glo LifeStyle
Collectiongasappliance —an elegantandclean alternative
towood burning appliances.The Heat& Glo LifeStyle
Collectiongas applianceyou have selected is designed to
provide the utmost in safety, reliability, and efficiency.
As the owner of a new appliance, you’ll want to read and
carefully follow all of the instructions contained in this
Owner’sManual. Pay special attention toall Cautions and
Warnings.
ThisOwner’sManualshouldberetainedforfuturereference.
We suggest that you keep it with your other important
documentsand product manuals.
Theinformationcontained in this Owner’sManual,unless
noted otherwise, applies to all models and gas control
systems.
Your new Heat & Glo LifeStyle Collection gas appliance will
give you years of durable use and trouble-free enjoyment.
Welcome to the Heat & Glo LifeStyle Collection family of
products!
Read this manual before installing or operating this appliance.
PleaseretainthisOwner’s Manualfor futurereference.
We recommend that you record the following
pertinent information about your appliance.
Gas and Electric
Information
Model Number
Serial Number
Type of Gas
The model information regarding your specific appliance can be found on
the rating plate usually located in the control area of the appliance.
Homeowner Reference Information
Not for use with solid fuel.
(Ne doit pas entre utilise avec un combustible solide).
This appliance must be installed in accordance with local codes, if any; if not, follow ANSI Z223.1
inthe USAorCAN/CGA B149 installation codes. (Installer l’appareil selonlescodesoureglements
locaux ou, en l’absence de tels reglements, selon les codes d’installation CAN/CGA-B149.)
Type of Gas (Sorte De Gaz):
NATURAL GAS
MADE IN USA
Minimum Permissible Gas Supply for Purposes of Input Adjustment.
Approved Minimum (DeGaz)Acceptable 0.0 in w.c. (Po.Col.d’eau)
Maximum Pressure (Pression) 0.0 in w.c. (Po.Col.d’eau)
Maximum Manifold Pressure (Pression) 0.0 in w.c. (Po.Col.d’eau)
Minimum Manifold Pressure (Pression) 0.0 in w.c. (Po.Col.d’eau)
Model:
(Modele):
Serial
(Serie):
ANSI Z21XX-XXXX · CSA 2.XX-MXX · UL307B
XXXXXXXX
INCANADA
A
LTITUDE: 0-0000 FT. 0000-0000FT.
MAX.INPUTBTUH: 00,000 00,000
MIN. INPUT BTUH: 00,000 00,000
ORIFICESIZE: #XXXXX #XXXXX
XXXXXXXX
Total Electrical Requirements: 000Vac, 00Hz., less than 00 Amperes
Heat & Glo LifeStyle Collection,
a brand of Hearth & HomeTechnologies, Inc
20802 Kensington Boulevard, Lakeville, MN 55044.
Thisproductiscoveredbyoneormoreofthefollowingpatents:(Nosproduitssontcouvertsparun ouplusieursdesbrevets suivants):(UnitedStates)4,112,913;4,408,594;
4,422,426;4,424,792;4,520,791;4,793,322;4,852,548;4,875,464;5,000,162;5,016,609;5,076,2545,191,877;5,218,953;5,328,356;5,429,495;5,452,708;5,542,407;5,613,487;
(Australia)543790;586383;(Canada)1,123,296;1,297,746;2,195,264;(Mexico)97-0457;(NewZealand)200265;orotherU.S.andforeignpatentspending(ouautres
brevetsamericains etetrangersenattente).

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/05 3
- Table of Contents -
Section 8: Finishing
A. Mantel Projections ...................................18
B.Facing Material ........................................18
Section 9: Appliance Setup
A. Remove Shipping Materials ....................21
B. Clean the Appliance.................................21
C. Accessories .............................................21
D. Lava Rock and Ember Placement ..........21
E. Positioning the Logs ...............................22
F. Glass Assembly.......................................24
G. Grilles and Trim .......................................24
H. Shutter Settings .......................................24
Section 10: Operating Instructions
A. Before Lighting Appliance........................25
B. Lighting Appliance ...................................26
C. After Appliance is Lit.................................27
D. Frequently Asked Questions ...................27
Section 11: Troubleshooting
A. Intellifire Ignition System .........................28
Section 12: Maintainingand ServicingAppliance. ...........30
Section 13: Reference Materials
A. Appliance Dimension Diagram...............32
B. Service Parts............................................33
C. Warranty ...................................................36
D. Contact Information .................................37
Section 1: Listing and Code Approvals
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............................. 4
G. Non-Combustible Materials Specifications .4
H. Combustible Materials Specification ........... 4
Section 2: Getting Started
A. Design and Installation Considerations......5
B. Tools and Supplies Needed ........................5
C. Inspect Appliance and Components............ 5
Section 3: Framing and Clearances
A. Selecting Appliance Location .......................6
B. Clearances...................................................7
C. Mantel Projections ........................................8
Section 4: Termination Locations
A.Appliance Opening Minimum Clearances .... 9
Section 5: Appliance Preparation
A. Securing and Leveling the Appliance.........10
Section 6: Gas Information
A. Fuel Conversions ....................................12
B. Gas Pressures ........................................12
C. Gas Connection.......................................12
Section 7: Electrical Information
A. Recommendation for Wire ......................14
B. Connecting to the Appliance ....................14
C. Optional Accessories...............................15
D. Intellifire Ignition System Wiring ..............16
E. Junction Box Installation..........................17
F. Wall Switch Installation for Fan ...............17
Î= Containsupdated information.
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Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/054
B. Glass Specifications
Hearth& HomeTechnologiesappliancesmanufacturedwith
tempered glass may be installed in hazardous locations
such as bathtub enclosures as defined by the Consumer
Product Safety Commission (CPSC). The tempered glass
has been tested and certified to the requirements of ANSI
Z97.1andCPSC 16 CFR 1202 (SafetyGlazingCertification
Council SGCC# 1595 and1597.ArchitecturalTesting, Inc.
Reports02-31919.01 and 02-31917.01).
Thisstatement is in compliance withCPSC 16CFRSection
1201.5“Certificationandlabelingrequirements” whichrefers
to 15 U.S. Code (USC) 2063 stating “…Such certificate
shallaccompanythe product or shall otherwise be furnished
toanydistributororretailertowhomtheproduct isdelivered.”
Somelocal buildingcodesrequiretheuseoftemperedglass
with permanent marking in such locations. Glass meeting
thisrequirement is available from the factory.Please contact
yourdealer ordistributor toorder.
A. Appliance Certification
NOTE: 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.
NOTINTENDED FOR USEASAPRIMARYHEATSOURCE.
This appliance is tested and approved as either supplemen-
tal room heat or a decorative appliance. It should not be fac-
tored as primary heat in residential heating calculations.
Listing and Code Approvals
F. HighAltitude Installations
U.L.Listedgasappliances are tested and approvedwithout
requiring changes for elevations from 0 to 2000 feet in the
U.S.A.and Canada.
When installing this appliance at an elevation above 2000
feet, it may be necessary to decrease the input rating by
changingthe existingburner orificeto asmaller size.Input
rate should be reduced by 4% for each 1000 feet above a
2000 foot elevation in the U.S.A., or 10% for elevations
between2000and4500feetinCanada. If the heating value
of the gas has been reduced, these rules do not apply. To
identify the proper orifice size, check with local gas utility.
If installing this appliance at an elevation above 4500 feet
(in Canada), check with local authorities.
E. BTU Specifications
1
MODEL: Twilight-II
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Gas Appliance
STANDARD: ANSI Z21.50-2003•CSA2.22-M03•UL307B
Model
U.S. (0-2000 FT) or Canada (2000-4500 FT) Input BTUH Orifice Size
(DMS)
Twilight II (NG) US 38,000 32
CAN 34,200 33
Twilight II (LP) US 37,000 50
CAN 33,300 51
WARNING
Do NOT use this appliance if any part has been under
water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the control
system and any gas control which has been under water.
ThisproductislistedtoANSIstandardsfor“VentedGasAp-
pliances” and applicable sections of “Gas Burning Heating
Appliances for Manufactured Homes and Recreational Ve-
hicles”,and “GasFiredAppliancesforUseatHighAltitudes”.
D. Air Infiltration, Water Resistance and
Structural Tests
TheHearth & HomeTechnologiesTwilight-IIIndoor/Outdoor
Applianceunit was testedto the followingASTM standards
at the StorkTwin CityTesting laboratory.
TestResults
Model Air Infiltration
(ASTM E283) Water Resistance (ASTM E331) Structural Load (ASTM E330)
Twilight-II
Indoor/Outdoor 0.07CFM/ft2No leakage @
8psf & 25psf No Blowout @ 75psf
C. Thermal Performance Data
Model Sound
Transmission
Class (STC) Thermal Resistance
(R Value) Thermal Conductivity (K Value)
Twilight-II 27 0.08hr-sq ft-OF/BTU 12.5 BTU-in/hr-sq ft-OF
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G. Non-Combustible Materials Specification
Materialwhich will notignite and burn arethose consisting
entirely of steel, iron, brick, tile, concrete, slate, glass or
plasters,or anycombination thereof.Materials thatare re-
ported as passing ASTM E 136, Standard Test Method
for Behavior of Materials in a Vertical Tube Furnace
at 750oC, shallbe considerednon-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
andburn,whetherflameproofedornot,orwhether plastered
orunplasteredshallbe considered combustible materials.
Airinfiltration testASTM:E283-(04).The sample was test-
edat 1.57psf (equivalent to a 25-mph windload).
Water resistance test ASTM:E331-00. The test specimen
wastestedattherequestedtestpressures of 8.0 & 25.0psf.
Structural test ASTM:E330-02. The unit was tested to a
designpressure of 50-psf, a test pressure of 75-psf.

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/05 5
A. Design and Installation Considerations
Heat& Glodirect ventgas appliancesare designed to op-
erate with all combustion air siphoned from outside of the
buildingand allexhaust gasesexpelled tothe outside.No
additionaloutside air source is required.
TheTwilight-II hasbeen carefully engineered to provide 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
experienceundesirableperformance or conditions.
1. Install the appliance according to this Owner’s Guide
paying particular attention to flashing and sealing
instructions.
2. Inthecold northern climates payattentionto exposures
andprevailing windconditions when locating the appli-
ance, the same as you would for locating exterior win-
dowsand doors.
The Twilight-II 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
andwill providethe room with a comfortableambiance.
Getting Started
C. Inspect Appliance and Components
2
When planning an appliance installation, it’s necessary to
determinethe following information beforeinstalling:
•Where the appliance is to be installed. See Section 3.
•Gas supply piping. See Section 6.
•Electrical wiring. See Section 7.
•Framing and finishing details. See Sections 3 and 8.
•Whetheroptionalaccessories—devicessuchasafan,wall
switch, or remote control—are desired. See Section 9.
B. Tools and Supplies Needed
Before beginning the installation be sure that the following
toolsandbuilding supplies areavailable.
Reciprocatingsaw Framingmaterial
Pliers Hi temp caulking material
Hammer Gloves
Phillipsscrewdriver Framingsquare
Flatbladescrewdriver Electric drill and bits (1/4 in.)
Plumb line Safety glasses
Manometer Voltmeter
Tape measure Level
Non-corrosiveleak check solution
1/2 - 3/4 inch length, #6 or #8 Self-drilling screws
One1/4 inchfemale connection (for optional fan)
• Carefullyremovetheapplianceandcomponentsfrom the
packaging.
• Thetrim doors are shipped ina separate package.
• Thegas logsmay be packaged separatelyand must be
fieldinstalled.
• Report to your dealer any parts damaged in shipment,
particularly the condition of the glass.
• Readall of the instructions before starting the instal-
lation. Follow these instructions carefully during the
installation to ensure maximum safety and benefit.
Check building codes prior to installation.
• Installation MUST comply with local, regional, state
and national codes and regulations.
• Consult insurance carrier, local building, fire
officials or authorities having jurisdiction about
restrictions, installation inspection, and permits.
CAUTION
Keep appliance dry.
• Mold or rust may cause odors.
• Water may damage controls.
WARNING
Inspect appliance and components for
damage. Damaged parts may impair safe
operation.
WARNING
• Do NOT install damaged components.
• Do NOT install incomplete components.
• Do NOT install substitute components.
Report damaged parts to dealer.
Hearth & Home Technologies disclaims
any responsibility for, and the warranty will
be voided by, the following actions:
WARNING
• 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.
• Installation and/or use of any component part not
approved by Hearth & Home Technologies.
Any such action may cause a fire hazard.

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/056
3Framing and Clearances
NOTE: •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
Fire Risk
Provide adequate clearance:
• Around air openings
• To combustibles
• For service access
Locate appliance away from traffic areas.
A. Selecting Appliance Location
When selecting a location for your appliance it is important
toconsidertherequiredclearances to walls (seeFigure3.1).
Figure 3.1 Appliance Locations
Model ABCDE
Minimum Minimum -Minimum -
Twilight-II Inches 43 1/2 24 36 43
Millimeters 1092.2 12.7 609.6 914.4 1092.2
NOTE: For actual appliance dimensions refer to Sec-
tion 13.
In addition to these framing dimensions, also reference the following section:
• Clearances and Mantel Projections (Section 3.B and 3.C)
GLASS FLUSH TO EXTERIOR INSULATED ENVELOPE
GLASS
A
B
B
D
E
C
B
GLASS FLUSH TO EXTERIOR INSULATED ENVELOPE
GLASS

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/05 7
B. Clearances
Figure 3.3 Clearances to Combustibles
Fire Risk.
•Locate and install appliance to all
clearance specifications in manual
WARNING
Fire Risk.
Odor Risk.
•Install appliance on hard metal or wood
surfaces extending full width and depth of
appliance.
•Do NOT install appliance directly on
carpeting, vinyl, tile or any combustible
material other than wood.
WARNING
Fire Risk.
Do not install appliance against vapor
barriers or exposed insulation.
•Prevent contact with sagging or loose
insulation.
WARNING
C
AB
Note: Framingdimensions as-
sume use of 1/2 inch thick
wall covering materials
on exterior of framing
only, and NO sheet-
rock on interior of
framing.
F
H
G
E
D
From top of appliance
to ceiling (interior) or
overhang (exterior).
Figure 3.2 Exterior View - Minimum Clearances
AB
Vinyl Siding 36 in. -
Non-vinylSiding 12 in. -
VinylOverhang - 60 in.
Non-vinylOverhang - 31 in.
A
B
A
A
OVERHANG
CLEARANCES TO COMBUSTIBLES:
ABCD E FGH
Rough
Opening
(Height)
Rough
Opening
(Depth)
Rough
Opening
(Width) Clearance
to Ceiling Non-Combustible Floor Combustible Flooring Standoff Height Sides of Appliance
Inches 41-1/4 23 44 31 0 0 3-3/8 0.5
mm 1048 584 1118 787 0 0 86 13

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/058
C. Mantel Projections - Interior only
Figure 3.4 Indoor Clearances to Mantels or other
Combustibles above Appliance Figure 3.5 Indoor clearances to Mantel Legs or Wall
Projections (Acceptable on both sides of opening.)
12
11
10
9
8
7
6
13-5/8
12-5/8
11-5/8
10-5/8
9-5/8
8-5/8
7-5/8
HOOD
NON-COMBUSTIBLE BOARD
(SUPPLIED ON APPLIANCE)
MEASURED
FROM CORNER
FIREPLACE
HOOD
½ IN.
TOP VIEW

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/05 9
Termination Locations
4
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
FP =APPLIANCE OPENING
X= AIR SUPPLY INLET
= AREA WHERE APPLIANCE IS NOT PERMITTED
A = 0" ......................... clearances above grade, veran-
da, porch, deck or balcony
B* = 12" ....................... clearances to window or door
that may be opened, or to per-
manently closed window.
D** = 31" ....................... vertical clearance to ventilated
soffit located above the hood
within a horizontal distance of 2
feet (60 cm) from the center-line
of the hood
E** = 31" ....................... clearance to unventilated soffit
F = 9" ........................ clearance to outside corner
G* = 12" ....................... clearance to inside corner
H = 3 ft. (Canada) ...... not to be installed above a gas
meter/regulator assembly within
3feet(90cm)horizontally fromthe
center-line of the regulator
I = 3ft. (U.S.A.)
6 ft. (Canada) ...... clearance to service regulator
vent outlet and electric service
J = 9" (U.S.A.)
12" (Canada) ........ clearance to non-mechani-
cal air supply inlet to build-
ing or the combustion air in-
let to any other appliance
K = 3 ft.(U.S.A.)
6 ft. (Canada) ......... clearance to a mechanical
air supply inlet
L*** = 54” ......................... clearance above paved
sidewalk or a paved driveway
located on public property
M****= 31" ......................... clearance under veranda,
porch,deck,balcony or overhang
60” ......................... vinyl
N = 12” ......................... non-vinyl siding
36” ......................... vinyl siding
P = 8 ft.
(See Note 1)
(See Note 1)
(See Note 2)
QMIN RMAX
Twilight-II 10 feet 2 x Q ACTUAL
1 additional termination cap Q + 3 feet 1 x Q ACTUAL
2 additional termination caps Q + 6 feet 2/3 x Q ACTUAL
3 additional termination caps Q + 9 feet 1/2 x Q ACTUAL
RMAX = (2 / # caps plus appliance) x QACTUAL
DE
L
FP
AH
M
X
J or K
I
A
G
F
FP
FP
FP FP
FP
B
B
B
** 60” minimum for vinyl clad soffits.
*** a appliance shall not open directly above a sidewalk or paved
driveway which is located between two single family dwellings
and serves both dwellings.
**** only permitted ifveranda,porch,deckor balcony is fully open on a
minimum of 2 sides beneath the floor, or if the screened porch
guidelinesare followed.
NOTE 1: Local codes or regulations may require different clearances.
NOTE 2: Termination in an alcove space(spacesopen only on one side
and with an overhang) are permitted with the dimensions specified for
vinyl or non-vinyl siding and soffits. 1. There must be 3 feet minimum
between terminations or between the appliance and termination. 2. All
mechanicalairintakeswithin10feetofaterminationmustbea minimumof
3 feet below the appliance hood. 3.All gravity air intakes within 3 feet of
theappliance hood mustbeaminimumof 1 foot belowthetermination.
* 36” minimum for vinyl windows or vinyl siding.
Thisappliance is approved for installation onto screened porches
with the following guidelines:
Fire Risk. Explosion Risk.
Maintainvent terminationminimum clearances as specified.
WARNING
Figure 4.1 Minimum Clearances for Appliance Opening
NOTE: There may be some odor and small amounts of soot
associated with venting the Twilight-II onto a screened porch.
Ensuring good cross draft ventilation and routine maintenance of
theappliancewill maximize comfort andcleanliness.
Minimumporcharea: 96 square feet
Minimumceiling height: 92 inches
Minimum twowalls must bescreened
Minimum top of screen height, side walls: 6 ft. 8 in.
Minimum screenarea: 64 square feet
A. Appliance Opening
Minimum Clearances
M
N
P
R
Q
FP

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/0510
Thediagramshowshow to properlyposition,level,and se-
curethe appliance (seeFigure5.2).Nailing tabsareprovid-
ed to secure the appliance to the framing members.
• Place the appliance into position.
• Level the appliance from side to side and front to back.
• Shimtheappliance with non-combustible material,such
as sheet metal, as necessary.
• Bend out nailing tabs on each side.
• Keep nailing tabs flush with the framing.
• Secure the appliance to the framing by using nails or
screws through the nailing tabs.
Figure 5.2 Proper Positioning, Leveling and
Securing of a Appliance
Fire Risk.
•Prevent contact with sagging, loose
insulation.
•Do NOT install against vapor barriers or
exposed insulation.
WARNING
DoNOT notchinto the framing around the appliance spacers.
CAUTION
A. Securing and Leveling theAppliance
Appliance Preparation
5
Figure 5.1 Positioning the Metal Hearth Strip
Placing Metal Hearth Strip
The metal hearth strip (approx. 46 inches x 4 inches) is
usedtoprovideaddedprotectionwhereapplianceandouter
structure meet.
• Placea generousbead ofsilicone caulkinto thecorner
ofthe protectivehearth strip.
• Placethe metalstrip onto the structure where the outer
edge of the appliance will sit (see Figure 5.1).
• Place the appliance into position. Make sure flashing
edgesontheoutdoorsurround fit up tight totheframing.
METAL HEARTH STRIP
UNDER EDGE OF
APPLIANCE
SECURE
TO FRAMING
IN A MINIMUM
3 PLACES
PER SIDE SECURE TO
FRAMING
NOTE: Caulk behind all flanges
before securing to the exterior.
APPLIANCE
EXTERIOR
APPLIANCE
EXTERIOR

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/05 11
• SeeFigure5.3 for placementof combustible housewrap
orbuilding paper andnon-combustible sheathing forthe
outsidewall.
• Oncetheappliance is in placeuseenough silicone caulk
to make a water tight seal between outdoor surround
andexterior sheathing.
Figure 5.4
NOTE: Theinstallation ispermitted inscreened porch-
es following the guidelines in Figure 4.1.
APPLY RTV
SEALANT TO
CORNER EDGES
FIREPLACE
FLANGE
BEND IN
FLANGE
Figure 5.3
NOTE: All finishing materials on top of exterior
sheathingmustbenon-combustible for aminimumof
12 inches above and on both sides of the exterior
faceof the appliance.This non-combustible finishing
materialcan beup to a maximum of 6 inches thick (6
inchesmaximumhorizontaloverhang)toallowforbrick
andstone alcoves(see Figure8.5).
NOTE:Combustiblehousewraporbuildingpapermust
not extend past the non-combustible material (12
inchesaboveand on bothsidesof the exterior faceof
the appliance). Use hightemp caulk to seal between
combustible sheathing housewrap and non-
combustiblesheathing.
*
**
*
**
HOUSEWRAP
(BUILDING PAPER)
WALL STUD
1/4 INCH CLEARANCE
TO HOUSEWRAP
12 INCH
NON-COMBUSTIBLE
SHEATHING
FIREPLACE
HEADER
INSULATEDFRAMING
STANDOFF
NON-COMBUSTIBLE
FINISHING MATERIAL
SHEATHING
TOP OF
FIREPLACE
FIREPLACE
HOOD
OUTSIDE

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/0512
NOTE: Have the gas supply line installed in accordance
with local building 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.)
A. Fuel Conversions
WARNING
Fire Risk.
Explosion Hazard.
High pressure will damage valve.
• Disconnect gas supply piping BEFORE
pressuretesting gasline at test pressures
above 1/2 psig.
• Close the manual shutoff valve BEFORE
pressuretesting gasline at test pressures
equal to or less than 1/2 psig.
B. Gas Pressures
C. Gas Connection
WARNING
Verify inlet pressures.
• High pressure may cause overfire condition.
• Low pressure may cause explosion.
• Verify minimum pressures when other
household gas appliances are operating.
Install regulator upstream of valve if line
pressure is greater than 1/2 psig.
Properinput pressures arerequiredfor optimum appliance
performance.Gas line sizing requirementsneedtobemade
followingNFPA51.
Gas Information
6
NOTE: Gas line may be run from either side of the
appliance provided the hole in the outer wrap does NOT
exceed 2-1/2 inches in diameter and does not penetrate
the firebox.
NOTE: A listed (and Commonwealth of Massachusetts ap-
proved) 1/2 inch (13mm) T-handle manual shut-off valve and
flexible gas connector are connected to the 1/2 inch (13mm)
control valve inlet.
• If substituting for these components, please consult
local codes for compliance.
NOTE: The gap between the supply piping and gas access
hole may be caulked with high temperature caulk or stuffed
with non-combustible un-faced insulation to prevent cold
air infiltration.
Pressurerequirementsforapplianceareshowninthetable
below. Minimum pressures must be met when other
householdgas appliances areoperating.
Pressure Natural Gas Propane
Minimum 5.0 inches 11.0 inches
InletPressure w.c. w.c.
Maximum Inlet 14.0 inches 14.0 inches
GasPressure w.c. w.c.
Manifold 3.5 inches 10.0 inches
Pressure w.c. w.c.
Before making gas connections ensure that appliance
being installed is compatible with the available gas type.
Anynaturalor propane gas conversionsnecessaryto meet
theappliance and locality needs must be made by a quali-
fied technician using Hearth & HomeTechnologies speci-
fied and listed gas conversion kit.
Refer to Reference Section 13 for location of gas line ac-
cess in appliance.
WARNING
Gas Leak Risk
• Support control when attaching pipe to
prevent bending gas line.
Í

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/05 13
WARNING
Fire hazard.
Do NOT change the valve settings.
• This valve has been preset at the factory.
• Changing valve settings may result in fire
hazard or bodily injury.
HIGHALTITUDE INSTALLATIONS
U.L. Listed gas appliances are tested and approved
without requiring changes for elevations from 0 to
2000 feet in the U.S.A. and Canada.
When installing this appliance at an elevation above
2000feet, it may be necessary to decreasethe input
rating by changing the existing burner orifice to a
smaller size. Input rate should be reduced by 4% for
each 1000 feet above a 2000 foot elevation in the
U.S.A.,or10%forelevationsbetween2000 and 4500
feet in Canada. If the heating value of the gas has
been reduced, these rules do not apply. To identify
theproper orifice size, check withthe localgas utility.
Ifinstallingthis appliance at an elevationabove 4500
feet (in Canada), check with local authorities.
• Ensurethatgas line doesnot come in contact withouter
wrap of appliance. Follow local codes.
• Incoming gas line should be piped into the valve com-
partment and connected to the 1/2 inch connection on
the manual shutoff valve.
CHECK FOR GAS LEAKS
Explosion Risk
Fire Risk
Asphyxiation Risk
• Check all fittings and connections.
• Do not use open flame.
•After the gas line installation is complete,
all connections must be tightened and
checked for leaks with a commercially-
WARNING
WARNING
Fire or Explosion Hazard
• Gas build-up during line purge may ignite.
• Purge should be performed by qualified technician.
• Ensure adequate ventilation.
• Ensure there are no ignition sources such as
sparks or open flames.
• A small amount of air will be in the gas supply lines.
When first lighting appliance it will take a short time for
air to purge from lines. When purging is complete the
appliance will light and operate normally.
available, non-corrosive leak check solution. Be sure
to rinse off all leak check solution following testing.
Fittings and connections may have loosened during
shipping and handling.

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/0514
A. Recommendation for Wire
This appliance requires 110-120 VAC be wired to the
junction box for proper operation of the appliance.
Electrical Information
7
NOTE: This appliance must be electrically wired and
grounded in accordance with local codes or, in the absence
of local codes, with National Electric CodeANSI/NFPA70-
latest edition or the Canadian Electric Code, CSA C221.1.
B. Connecting to the Appliance
WARNING
Wire 110V to electrical junction box.
Do NOT wire 110V to valve.
Do NOT wire 110V 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, wall
mounted thermostat and/or a remote control.
• If using thermostat use one compatible with a millivolt
gas valve system.
• Followparametersforlocatingthermostat(seeindividual
thermostat instructions) to ensure proper operation of
appliance.
• Keep wire lengths short as possible by removing any
excess wire length.
• Lowvoltageand110VACvoltagecannotbesharedwithin
the same wall box.
NOTE: Waterproof insulated wire should be used when
wiring the junction box.
CAUTION
Label all wires prior to disconnection when servicing con-
trols. Wiring errors can cause improper and dangerous op-
eration. Verify proper operation after servicing.
Shock hazard.
• Replace damaged wire with type 105OC
rated wire.
• Wire must have high temperature insulation.
CAUTION

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/05 15
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.
Fan Installation
To provide best airflow, we recommend positioning fan on
the left side (as viewed from appliance interior side - see
Figure 7.2). NOTE: It is recommended fan be installed
prior to gas line installation.
Figure 7.1 Fan Wiring Diagram
C. OptionalAccessories
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 7.1).
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 7.2 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

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/0516
Figure 7.3 Intellifire Pilot Ignition (IPI) Wiring Diagram
*
NOTE: 1.Ignition module, valve,pilot, and wallswitch operateon 3 volts.
Uninterrupted120 VACis required at junction boxunless equipped with battery back-up.
D. Intellifire Ignition System Wiring
Thisappliance requiresa 110VACsupply to the appliance
junctionboxfor operation. Whenusing the transformer,the
junctionboxmusthaveuninterrupted120V.Awiring diagram
is shown in Figure 7.3.
This appliance is equipped with an Intellifire control valve
which operates on a 3 volt system.
This appliance is supplied with a battery pack and a 3 volt
AC transformer, which requires the installation of the
supplied junction box. It is highly recommended that the
junctionboxbeinstalledat this time to avoidreconstruction.
The battery pack requires two D cell batteries (not
included).
CAUTION
Battery polarity must be correct or module damage
will occur.
Optional Accessories Requirements
Wiringfor optional accessories should be done nowtoavoid
reconstruction.
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
V
ALVE
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
BRN
BRN
VALVE
PLUG IN
GROUND TO
FIREPLACE
CHASSIS
I
S
NOTE: Batteries cannot be placed in the battery pack
while using the 3 voltAC transformer. The transformer
must be unplugged if the battery pack is used.

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/05 17
E. Junction Box Installation
F. Wall Switch Installation for Fan (Optional)
Ifthe 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.
Figure 7.4 Junction Box Detail
Figure 7.5 Junction Box Wired to Wall Switch
If the box is being wired to a wall
mounted switch for use with a fan
(SeeFigure 7.5):
• The power supply for the
appliancemust be broughtinto
a switch box.
• Thepowercanthenbe supplied
from the switch box to the
appliance using a minimum of
14-3withground 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)wirestothejunc-
tion box as shown.
• Adda1/4inchinsulatedfemale
connectortothered(switchleg)
wire,routeitthroughtheknock-
out in the face of the junction
box,and connectto the top fan
switch connector (1/4 inch
male) as shown.
• 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.
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 7.4).
• Pull the electrical wires from outside the
appliance through this opening into the valve
compartment.
NOTE: Do NOT wire
110VAC to wall switch.
GREEN WIRE
INSIDE BOX
14/2WG
COPPER GROUND
ATTACHED TO GRN SCREW
WITH GRN WIRE
BLK
WHT
WHT BLK
HEAT SHIELD
6 INCH
APPROX.
WIRE LEAD
1 MALE END
1 FEMALE END
TEMPERATURE
SENSOR SWITCH
WIRE LEAD
2 FEMALE ENDS JUNCTION
BOX
6 INCH
APPROX.
FAN
SPEED CONTROL
(RHEOSTAT)
FAN
PLUG AND WIRE
ASSEMBLY
OPTIONAL
WALL SWITCH

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/0518
A. Mantel Projections
Figure8.1 shows the minimum verticaland corresponding
maximum horizontal dimensions of appliance mantels or
other combustible projections above the top front edge of
theappliance.
Finishing
8
Figure 8.2 Clearances to
Combustible Mantel Leg or
Wall Projections (Acceptable
on both sides of opening.)
Figure 8.1 Indoor Clearances to Mantels or other
Combustibles above Appliance
12
11
10
9
8
7
6
13-5/8
12-5/8
11-5/8
10-5/8
9-5/8
8-5/8
7-5/8
HOOD
NON-COMBUSTIBLE BOARD
(SUPPLIED ON APPLIANCE)
Note: Measurements
are in inches.
Interior
View
MEASURED
FROM CORNER
FIREPLACE
HOOD
½ IN.
TOP VIEW
B. Facing Material
Fire Risk.
Do NOT obstruct air inlet or outlet grilles.
Do NOT modify grilles.
•Modifying or covering grilles could cause
temperature rise and fire hazard.
WARNING
Finishing materials must not interfere with:
• Air flow through grilles or louvers.
•Operation of louvers or doors.
•Access for service.
Inside Facing Material
•May install combustible materials up to specified
clearances on top, front and sides of appliance.
• Sealjoints between finishedwall and appliancetop and
sideswith 3000F (1400C) minimumsealant.
• Leave space so bottom grille can be lowered for trim
doorremoval.

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/05 19
Outside Facing Material
Fire Risk.
Finish all edges and fronts to clearances and
specifications listed in manual.
WARNING
• Black metal columns may be covered with non-
combustible material only.
• Do NOT overlap combustible materials onto
appliance front.
• Install combustible materials up to specified clear-
ances on top front and side edges.
• Seal joints between the finished wall and appliance
top and sides using only a 300oF minimum sealant.
Figure 8.3 Exterior View
COMBUSTIBLE
SHEATHING HOUSEWRAP
NON-COMBUSTIBLE
SHEATHING
NON-
COMBUSTIBLE
FACING
6 INCH MAXIMUM
PROJECTION FROM
FACE OF APPLIANCE
6 IN.
MAX.
REQUIRED
HOOD
(SUPPLIED WITH
TL-TRIM KIT)
BRICK
LEDGE
12 IN.
REQUIRED
FLASHING
(SUPPLIED WITH
TL-TRIM KIT)
NON-COMBUSTIBLE
SHEATHING 12 IN.
HOUSE
WRAP
THERE MUST BE NO GAP
BETWEEN BRICK LEDGE,
FACING MATERIAL AND
APPLIANCE FRONT.
Î
• Mayinstall non-combustible materials to cover gap be-
tweenfacing materialand appliance (see Figure 8.3).
Fire Risk.
Water Intrusion Risk.
TL-TRIM Kit with hood is required.
WARNING
• TL-TRIM Kit must be installed on
exterior before flashing and facing.
Í

Heat & Glo LifeStyle Collection • Twilight-II • 2087-900 Rev. G • 12/0520
Figure 8.5
Exterior View
APPLIANCE
HOOD
TOP OF
APPLIANCE
SOFFIT
SIDING
HOUSEWRAP (BUILDING
PAPER) AND SHEATHING
31 INCH MINIMUM CLEARANCE
TO NON-VINYL
36 INCH CLEARANCE TO VINYL
SOFFIT, OVERHANG OR CEILING
12 INCH MINIMUM CLEARANCE
TO NON-VINYL SIDING
36 INCH MINIMUM
CLEARANCE TO VINYL SIDING
DRAIN PLANE
DETERMINED BY
LOCAL CODE
BRICK OR OTHER NON-COMBUSTIBLE
FACING MATERIAL 6 INCH MAXIMUM
PROJECTION FROM SURFACE
OF FIREPLACE
NON-COMBUSTIBLE BRICK LEDGE
MUST BE TIGHT TO APPLIANCE
FACE OR NON-COMBUSTIBLE SHEATHING
Figure 8.4
NOTE: All finishing materials on top of ex-
terior sheathing must be non-combustible
for a minimum of 12 inches above and on
both sides of the exterior face of the appli-
ance. This non-combustible finishing ma-
terial can be up to a maximum of 6 inches
thick (6 inches maximum horizontal over-
hang) to allow for brick and stone alcoves
(see Figure 8.3).
NOTE: Combustible housewrap or building
paper must not extend past the non-com-
bustible material (12 inches above and on
both sides of the exterior face of the appli-
ance). Use hightemp caulk to seal between
combustible sheathing housewrap and non-
combustible sheathing.
HOUSEWRAP
(BUILDING PAPER)
SHEATHING,
COMBUSTIBLE
STUD WALL
1/4” CLEARANCE
TO HOUSEWRAP
12”
NON-COMBUSTIBLE
SHEATHING
FIREPLACE
HEADER
INSULATED FRAMING
STANDOFF
SPECIAL
FLASHING
TOP OF
FIREPLACE
FIREPLACE
HOOD
31 INCH MINIMUM
CLEARANCE TO
NON-VINYL SOFFIT,
CEILING OR OVERHANG.
36 INCH MINIMUM
CLEARANCE TO
VINYL SOFFIT,
CEILING OR OVERHANG
SOFFIT
DETAIL -
SEE FIGURE 8.3