Heat & Glo GEM36 Assembly instructions

1Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
- Do not store or use gasoline or other flam-
mablevaporsandliquidsinthevicinityofthis
oranyotherappliance.
-What to do if you smell gas
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Donotuse any phoneinyour building.
• Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call
thefiredepartment.
- Installationandservicemustbeperformedbya
qualified installer, service agency, or the gas
supplier.
Installers Guide
WARNING: IMPROPER INSTALLA-
TION, ADJUSTMENT, ALTERATION,
SERVICE OR MAINTENANCE CAN
CAUSE INJURY OR PROPERTY DAM-
AGE. REFER TO THIS MANUAL. FOR
ASSISTANCE ORADDITIONAL INFOR-
MATION CONSULT A QUALIFIED IN-
STALLER, SERVICEAGENCY, OR THE
GAS SUPPLIER.
Underwriters
Laboratories Listed
READ THIS MANUAL BEFORE INSTALLING OR
OPERATING THISAPPLIANCE. THISINSTALLERS
GUIDE MUST BE LEFT WITH APPLIANCE FOR
FUTUREREFERENCE.
1.This appliance may be installed in an af-
termarket,permanentlylocated,manufac-
tured(mobile)home,wherenotprohibited
bylocalcodes.
2. Thisapplianceisonlyfor usewiththetype
of gas indicated on the rating plate. This
appliance is not convertible for use with
othergases,unlessacertifiedkitisused.
Please contact your Heat & Glo dealer with any
questionsorconcerns.Forthenumberofyournearest
Heat & Glo dealer, please call 1-888-427-3973.
Printed in U.S.A. Copyright 2005,
Heat & Glo, a brand of Hearth & Home Technologies Inc.
20802 Kensington Boulevard, Lakeville, MN 55044
WARNING: IF THE INFORMATION
IN THESE INSTRUCTIONS IS NOT
FOLLOWED EXACTLY,AFIRE OR
EXPLOSION MAY RESULT CAUS-
ING PROPERTY DAMAGE, PER-
SONAL INJURY, OR DEATH.
Model:
GEM36
Thisproductmaybecoveredbyoneormoreofthefollowingpatents:(UnitedStates)4593510,4686807,4766876,4793322,4811534,5000162,5016609,5076254,5113843, 5191877, 5218953, 5263471,
5328356,5341794,5347983,5429495, 5452708, 5542407, 5601073,5613487,5647340,5688568, 5762062, 5775408, 5890485,5931661,5941237, 5947112,5996575,6006743,6019099, 6048195,
6053165,6145502,6170481,6237588,6296474,6374822,6413079,6439226,6484712, 6543698,6550687,6601579,6672860,6688302B2,6715724B2,6729551,6736133,6748940,6748942, D320652,
D445174,D462436;(Canada)1297749, 2195264,2225408;or otherU.S.and foreign patentspending.

2Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
These units MUST use one of the vent systems
described in the Installing the Fireplace section of
the Installers Guide.NO OTHER vent systems or
components MAY BE USED.
This gas fireplace and vent assembly MUST be
vented directly to the outside and MUST NEVER be
attached to a chimney serving a separate solid fuel
burning appliance. Each gas appliance MUST USE
a separate vent system. Common vent systems are
PROHIBITED.
INSPECT the external vent cap on a regular basis to
make sure that no debris is interfering with the air
flow.
The glass door assembly MUST be in place and
sealed, and the trim door assembly MUST be in
place on the fireplace before the unit can be placed
into safe operation.
DO NOT OPERATE this appliance with the glass
door removed, cracked, or broken. Replacement of
the glass door should be performed by a licensed
or qualified service person. DO NOT strike or slam
the glass door.
The glass door assembly SHALL ONLY be
replaced as a complete unit, as supplied by the gas
fireplace manufacturer. NO SUBSTITUTE material
may be used.
DO NOT USE abrasive cleaners on the glass door
assembly. DO NOT ATTEMPT to clean the glass
door when it is hot.
Turn off the gas before servicing this appliance. It is
recommended that a qualified service technician
perform an appliance check-up at the beginning of
each heating season.
Any safety screen or guard removed for servicing
must be replaced before operating this appliance.
DO NOT place furniture or any other combustible
household objects within 36 inches of the fireplace
front.
READ and UNDERSTAND all instructions carefully
before starting the installation. FAILURE TO
FOLLOW these installation instructions may result
in a possible fire hazard and will void the warranty.
Prior to the first firing of the fireplace, READ the
Using Your Fireplace section of the Owners Guide.
DO NOT USE this appliance if any part has been
under water. Immediately CALL a qualified service
technician to inspect the unit and to replace any part
of the control system and any gas control which has
been under water.
THIS UNIT IS NOT FOR USE WITH SOLID FUEL.
Installation and repair should be PERFORMED by a
qualified service person. The appliance and venting
system should be INSPECTED before initial use
and at least annually by a professional service
person. More frequent cleaning may be required
due to excessive lint from carpeting, bedding
material, etc. It is IMPERATIVE that the unit’s
control compartment, burners, and circulating air
passageways BE KEPT CLEAN to provide for
adequate combustion and ventilation air.
Always KEEP the appliance clear and free from
combustible materials, gasoline, and other
flammable vapors and liquids.
NEVER OBSTRUCT the flow of combustion and
ventilation air. Keep the front of the appliance
CLEAR of all obstacles and materials for servicing
and proper operations.
Due to the high temperature, the appliance should
be LOCATED out of traffic areas and away from
furniture and draperies. Clothing or flammable
material SHOULD NOT BE PLACED on or near the
appliance.
Children and adults should be ALERTED to the
hazards of high surface temperature and should
STAY AWAY to avoid burns or clothing ignition.
Young children should be CAREFULLYSUPERVISED
when they are in the same room as the appliance.
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SAFETY AND WARNING INFORMATION
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3Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
TABLE OF CONTENTS
Safety and Warning Information ................................................ 2
Service Parts Lists ..................................................................... 4
Section 1: Approvals and Codes ............................................... 7
ApplianceCertification................................................................... 7
Installation Codes.......................................................................... 7
HighAltitudeInstallations............................................................... 7
Section 2: Getting Started ......................................................... 8
Introducing the Heat & Glo Gas Fireplaces................................... 8
Pre-installationPreparation........................................................... 8
Section 3: Installing the Fireplace.......................................... 10
Constructing the Fireplace Chase .............................................. 10
Step 1 Locating the Fireplace ................................................. 10
Step 2 Framing the Fireplace...................................................11
Step 3 Installing the Vent System............................................ 13
A. Vent SystemApprovals........................................... 13
B. Installing Vent Components.................................... 17
C. Vent Termination .................................................... 19
Step 4 Positioning, Leveling,and
Securing the Fireplace................................................. 21
Step 5 Installing the Optional Heat-Out or Heat-Zone Kits ...... 22
Step 6 The Gas Control Systems........................................... 22
Step 7 The Gas Supply Line ................................................... 23
Step 8 Gas Pressure Requirements ...................................... 23
Step 9 Wiring the Fireplace .................................................... 24
Step 10 Finishing ...................................................................... 25
Facing Requirements .................................................. 26
Step 11 Installing Trim, Logs and Ember Material .................... 27
Installing the Trim......................................................... 27
Positioning the Logs .................................................... 27
Placing the Ember Material.......................................... 27
Glass Specifications .................................................... 27
Burner Removal............................................................ 27
Step 12 Before Lighting the Fireplace ....................................... 28
Step 13 Lighting the Fireplace .................................................. 28
Afterthe Installation ..................................................................... 28
Climate Control ........................................................................... 28
Section 4: Maintaining and Servicing Your Fireplace......... 29
Î= Containsupdated information.
Î
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7Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
Appliance Certification
The Heat & Glo fireplace model discussedin this Installers
Guidehasbeen tested tocertification standards andlisted
bytheapplicable laboratories.
Certification
MODEL: GEM36
LABORATORY: UnderwritersLaboratories
TYPE: Direct Vent Gas Fireplace Heater
STANDARD: ANSI Z21.88-2000•CSA2.33-M98•UL307B
Installation Codes
Thefireplaceinstallationmustconformtolocalcodes. Before
installing the fireplace, consult the local building code
agency to ensure that you are in compliance with all
applicable codes, including permits and inspections.
Inthe absenceoflocal codes,the fireplaceinstallation must
conform to the National Fuel Gas Code ANSI Z223.1 (in
theUnitedStates)or theCAN/CGA-B149InstallationCodes
(in Canada). The appliance must be electrically grounded
in accordance with local codes or, in the absence of local
codes with the National Electric CodeANSI/NFPANo. 70
(intheUnitedStates),ortothe CSAC22.1CanadianElectric
Code(in Canada).
Thesemodels may beinstalled in abedroom orbed-sitting
room in the U.S.A. and Canada.
1Approvals and
Codes
HighAltitude Installations
U.L. Listed gas appliances are tested and approved with-
outrequiring changes for elevationsfrom 0 to 2,000feet in
the U. S.A. and in Canada.
Wheninstalling this appliance atan elevation above2,000
feet, it may be necessary to decrease the input rating by
changingthe existing burner orificeto a smallersize.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
between2000and4500feet inCanada.If theheating value
of the gas has been reduced, these rules do not apply. To
identify the proper orifice size, check with the local gas
utility.
Ifinstallingthis appliance at an elevationabove 4,500 feet
(in Canada), check with local authorities.
Heat & Glo Quality Systems
registeredbySGS ICS

8Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
2Getting Started
Introducing the Heat & Glo Gas Fireplaces
Heat& Glo directvent gas fireplacesare designed tooper-
ate with all combustion air siphoned from outside of the
building and all exhaust gases expelled to the outside.
The information contained in this Installers Guide, unless
noted otherwise, applies to all models and gas control
systems.Gasfireplace diagrams,includingthedimensions,
are shown in this section.
Pre-install Preparation
Thisgasfireplace and its components aretested and safe
when installed in accordance with this Installers Guide.
Report to your dealer any parts damaged in shipment,
particularly the condition of the glass. Do not install any
unit with damaged, incomplete, or substitute parts.
The vent system components and trim doors are shipped
in separate packages. The gas logs may be packaged
separately and must be field installed.
Read all of the instructions before starting the
installation. Follow these instructions carefully during
the installation to ensure maximum safety and benefit.
Failure to follow these instructions will void the
owner’s warranty and may present a fire hazard.
TheHeat & Glo Warranty will bevoided by,and Heat &Glo
disclaims any responsibility for, the following actions:
• Installation of any damaged fireplace or vent system
component.
• Modification of the fireplace or direct vent system.
• Installation other than as instructed by Heat & Glo.
• Improper positioning of the gas logs or the glass door.
• Installationand/or useof anycomponent partnotmanu-
factured and approved by Heat & Glo, not withstanding
anyindependenttestinglaboratoryor otherpartyapproval
of such component part or accessory.
ANY SUCH ACTION MAY POSSIBLY CAUSE A FIRE
HAZARD.
When planning a fireplace installation, it’s necessary to
determine:
•Where the unit is to be installed.
•The vent system configuration to be used.
•Gas supply piping.
•Electricalwiring.
•Framingandfinishing details.
•Whether optional accessories—devices such as a fan,
wallswitch,or remote control—are desired.
If the fireplace is to be installed on carpeting or tile, or on
any combustible material other than wood flooring, the
fireplaceshouldbe installed on ametalor wood panel that
extends the full width and depth of the fireplace.

9Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
Figure 1. Diagram of the GEM36
TOP STANDOFFS
TOP VENT
COLLARS
TRIM DOOR
RATNG PLATES
AND LABELS
GAS
CONTROLS
GAS LINE
ACCESS ELECTRICAL
ACCESS
HEAT-ZONE
KNOCKOUTS
HEAT-OUT
KNOCKOUT
ORIFICE
ACCESS PANEL
Ø8” (203mm)
3”
(76.2mm)
42-13/16”
(1087.4mm)
35-25/32”
(908.9mm)
30-5/32”
(766mm)
2”
(50.8mm)
4-1/2”
(114.3mm)
8-5/32” (207.2mm)
36-3/16” (919.1mm)
18-3/32”
(459.6mm)
17-1/2” (444.8mm)
37-3/4” (958.9mm)
5-3/16”
(131.9mm)
41” (1041mm)

10 Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
3Installing the Fireplace
Step 1. Locating the Fireplace
Thefollowing diagramshowsspace andclearance require-
ments for locating a fireplace within a room.
ABCD E
41-1/2” 18” 39” 50.5” 72”
Minimum Clearances
from the Fireplace to Combustible Materials
Inches mm
Glass Front........................ 36 .................... 914
Floor ................................... 0 ....................... 0
Rear ...................................1/2 ..................... 13
Sides .................................1/2 ..................... 13
SurroundSides*.................1/2 ..................... 13
Top...................................... 7 ..................... 178
Ceiling**............................. 31 .................... 787
Figure 2. Fireplace Dimensions, Locations,
and Space Requirements
Minimum Clearances
from the Vent Pipe to Combustible Materials
Inches mm
Vertical Sections. ............. 1 ................ 25
Horizontal Sections
Top..................................... 3 ................ 75
Bottom ............................... 1 ................ 25
Sides ................................. 1 ................ 25
At Wall Firestops
Top..................................... 3 ................ 75
Bottom ............................... 1 ................ 25
Sides ................................. 1 ................ 25
* See Figure 3.
**The clearanceto theceiling ismeasuredfrom the
topof the unit, excludingthe standoffs.
Thedistance from theunit to combustibleconstruction
is to be measured from the unit outer wrap surface to
thecombustibleconstruction,NOTfromthescrewheads
that secure the unit together.
For minimum clearances, see the direct vent termination
clearance diagrams on pages 19 and 20 in this manual.
1/2” MIN. (13mm)
D
C
E
B
12” MIN. (304.8mm)
A
Clearance Requirements
The top, back, and sides of the fireplace are defined by
stand-offs.The minimumclearanceto aperpendicular wall
extending past the face of the fireplace is 12” (304.8 mm).
Thebackofthefireplacemayberecessed171/2”(437.5mm)
into combustible construction.
Constructing the Fireplace Chase
A chase is a vertical box-like structure built to enclose the
gasfireplace and/or itsventsystem. Vertical ventsthatrun
onthe outside ofabuilding may be,but are notrequired to
be, installed inside a chase.
CAUTION: TREATMENT OF FIRESTOP SPACERSAND
CONSTRUCTIONOFTHECHASE MAYVARYWITHTHE
TYPEOF BUILDING.THESE INSTRUCTIONSARE NOT
SUBSTITUTES FOR THE REQUIREMENTS OF LOCAL
BUILDINGCODES.THEREFORE,YOURLOCAL BUILD-
INGCODES MUST BE CHECKEDTO DETERMINE THE
REQUIREMENTSFOR THESE STEPS.
Factory-builtfireplace chasesshould beconstructed in the
manner of all outside walls of the home to prevent cold air
draftingproblems. The chaseshould notbreak the outside
buildingenvelopeinanymanner.
This means that the walls, ceiling, base plate and cantile-
ver floor of the chase should be insulated. Vapor and air
infiltration barriers should be installed in the chase as per
regionalcodes forthe restofthehome.Additionally,Heat &
Glo recommends that the inside surfaces be sheetrocked
and taped for maximum air tightness.
To furtherprevent drafts,the firestopsshouldbecaulked to
seal gaps. Gas line holes and other openings should be
caulked or stuffed with insulation. If the unit is being in-
stalled on a cement slab, we recommend that a layer of
plywoodbe placed underneathtoprevent conductingcold
up into the room. Be sure to include spark arrestors for
woodburningunits ifthey arerequired.
THECHASESHOULDBECONSTRUCTEDSOTHATALL
CLEARANCES TO THE FIREPLACEARE MAINTAINED
AS SPECIFIED WITHIN THIS INSTALLERS GUIDE.

11Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
Framing should be
constructed of 2 X 4
lumber or heavier.
A. ................ 41-1/2”
B. ....................... 43”
C. ................ 17-1/2”
D. ................ 54-1/2”
E.** ......... 22-15/16”
F.* ............... 49-1/2”
Figure 3. Framing Dimensions
Step 2. Framing the Fireplace
Fireplaceframing canbe builtbeforeorafterthefireplaceis
set in place. Framing should be positioned to accommo-
date wall coverings and fireplace facing material. The dia-
grambelow showsframing referencedimensions.
CAUTION: MEASURE FIREPLACE DIMENSIONS AND
VERIFY FRAMING METHODS AND WALL COVERING
DETAILS BEFOREFRAMING.
Shows center of 10” x 12” vent framing
holes for top and rear venting. The center
of the hole is one (1) inch (25.4mm) above
the center of the horizontal vent pipe.
F
A
CB
1/2” CLEARANCE TO
FRAMING MEMBER
1/2” CLEARANCE
FRAMING
MEMBER
1/2” CLEARANCE
FROM BOTH SIDES
OF FIREPLACE
TO COMBUSTIBLE
1/2” CLEARANCE FROM BACK OF FIREPLACE TO COMBUSTIBLE
Note: Remove cover
plate (if present).
*Studs labeled “F” are necessary if installing the optional Arched Gem
Stone Kits (BKMS6052, BEMS6052, GRS6052)
**Heat-Out framing is 12 inches wide by 10 inches tall, opposite of vent
framing. Center of Heat-Out framing is 1-1/16 inch LOWER than the
center of the Heat-Out pipe.
D
E
HEAT-OUT

12 Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
NOTE: PIPES OVERLAP 1-1/4 INCHES
AT EACH JOINT.
Figure 4. DVP-Series Direct Vent Component Specifications (5-inch inner pipe / 8-inch outer pipe)
DVP90ST
12-9/16
11-1/4
7-1/4
1-1/4 TYP
1/2 TYP
8-9/16
DVP36
DVP48
48
24
36
4
6
DVP4
DVP6
12
DVP12
2
MIN.
DVP12A
12-3/16
MAX.
DVP24
9-7/8
45.0
O
10-1/4
DVP45
14-1/4

13Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
Figure 5. Vent System Components and Termination Kits
Step 3. Installing the Vent System
A. Vent System Approvals
Thesemodels are approved touse DVP-series directvent
pipe components and terminations (see Figures 4 and 5).
Approvedvent system componentsare labeledfor identifi-
cation. This pipe is tested and listed as an approved com-
ponent of the fireplace. The pipe is tested to be run inside
an enclosed wall. There is no requirement for inspection
openingsateach joint withinthewall. There isnorequired
pitch forhorizontal vent runs. NO OTHER VENTING SYS-
TEMS OR COMPONENTS MAY BE USED.
Detailedinstallationinstructions areincludedwith eachvent
termination kit and should be used in conjunction with this
InstallersGuide.
Theflameandemberappearancemayvarybasedonthetype
offuelburnedandtheventingconfigurationused.
Identifying Vent Components
The vent systems installed on this gas fireplace may in-
clude one, two, or three 90°elbow assemblies. The rela-
tionshipsof vertical rise tohorizontal run inventconfigura-
tions using 90° elbows MUST BE strictly adhered to. The
risetorun relationships areshownin the ventingdrawings
andtables.Refertothediagramson thenextseveralpages.
NOTE: Two 45° elbows may be used in place of one
90° elbow. Rise to run ratios in the vent system must
be followed if 45° elbows are used.
Terminations Kits
HORIZONTAL
TERMINATION
WALLFIRESTOP
90 DEGREE
ELBOW
PIPE LENGTH
CEILING
FIRESTOP
VERTICAL
TERMINATION STORM COLLAR
ROOF FLASHING
SERIES
Î
PVK-80 DVP-TVHW DVP-TRAP

14 Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
FLUE
RESTRICTOR
Pilot Shield Adjustment
Note:When venting this unit with high vertical (8feetor
more) withverylittlehorizontalthe pilot shield will needto
bebentdown inthe closedposition as shownin Figure 9.
Figure 9
PILOT SHIELD
PILOT
BRACKET
PILOT SHIELD SHOULD BE
CLOSED AND TOUCHING
THE PILOT BRACKET
Figure 10
Note: When venting this unit with long horizontal runs
and/or multiple elbows, the pilot shield will need to be in
the opened positionas in Figure 10.
PILOT SHIELD
BEND PILOT SHIELD UP 3/8”
TO ALLOW AIR FLOW TO
FEED THE PILOT FLAME
Flue Restrictor Instructions
1. Locate the flue restrictors inside the unit to the left of the
controlpanel. There aretwo each of1-1/4” diameter and
1-1/2”diameter.Usethefollowingtabletodetermine which
restrictors to use for the vent run.
2. SeeFigure 7forrestrictorinstallation.Insert eachrestric-
tor in one of the 3” exhaust collars as shown.
Figure 8. Flue Restrictor
Figure 7
FLUE
RESTRICTOR
Figure 6.
Straight Up Vertical Venting
STRAIGHT UP
VERTICALVENTING
V (FT.)
40' MAX. (12.4 M)
NOTE: Onvertical venting
configurations install the
verticalbafflefoundinyour
manual bag per the flue
restrictor instructions in
this section.
CAP
V
15’-30’ 30’-40’
NG 1-1/2” & 1-1/2” 1-1/2” & 1-1/4”
LP 1-1/2” & 1-1/2” 1-1/4” & 1-1/4”
VentRun
Vertical
1-1/4” & 1-1/2”
DIAMETER
Í
Í

15Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
VENTING WITH ONE (1) 90° ELBOW
V (FT.) H (FT.)
1.5' MIN. (.457m) 3' MAX. (.912m)
2.5' MIN. (.762m) 6' MAX. (1.82m)
3.5' MIN. (1.06m) 9' MAX. (2.73m)
4.5' MIN. (1.37m) 12' MAX. (3.64m)
5.5' MIN. (1.67m) 15' MAX. (4.55m)
6.5' MIN. (1.98m) 18' MAX. (5.46m)
7.5' MIN. (2.28m) 21' MAX. (6.37m)
8.5' MIN. (2.59m) 24' MAX. (7.28m)
V = 40’ MAX. (12.2m)
V+H = 64’ MAX. (19.5m) H = 24' MAX. (7.28m)
Figure 11.
Venting with One 90° Elbow
NOTE: Musthave aone
footminimum verticalvent
beforeattaching a90o
elbow to the unit.
H
V
Figure 12. Venting with Two 90° Elbows
V FT. H + H1(FT.)
1.5' MIN. (.457m) 3´ MAX. (.912m)
2.5' MIN. (.762m) 6´ MAX. (1.82m)
3.5' MIN. (1.06m) 9’ MAX. (2.73m)
4.5' MIN. (1.37m) 12´MAX.(3.64m)
V+H+H1=64' MAX.(19.5m)
H+H
1
= 24´MAX. (7.3m)
V+V1+H=64' MAX.(19.5m)
VENTING WITH
TWO (2) 90o
ELBOWS
H
V
V
V
1
H
H
1
H
V

16 Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
VENTING WITH THREE (3) 90° ELBOWS
V (FT.) H (FT.)
2' MIN. (.609m) 3' MAX. (.912m)
2.5' MIN. (.762m) 6' MAX. (1.82m)
3.5' MIN. (1.06m) 9' MAX. (2.73m)
4.5' MIN. (1.37m) 12'MAX.(3.64m)
NOTE: H + H1= 24' MAX. (7.28m)
V + V1+ H + H1= 64' MAX. (19.5m)
V (FT.) H + H1(FT.)
2' MIN. (.609m) 3' MAX.(.912m)
2.5' MIN.(.762m) 6' MAX.(1.82m)
3.5' MIN. (1.06m) 9' MAX. (2.73m)
4.5' MIN. (1.37m) 12' MAX. (3.64m)
H+H1= 20' MAX.(6.2m)
NOTE:V+V1+H+H1=64'MAX.(19.5m)
Figure 13. Venting with three 90° elbows
V
H
H
1
V
1
V
H
H
1
V
1

17Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
B. Installing Vent Components
Venting Out the Top Vent
The glass must be taken off again for positioning the logs
whentheunit isfinallyinstalledinplace andfinishedaround
it. Re-install the glass door.Attach vent system to the top
starting collars.
1. Attach the First Vent Component to the
Starting Collars
To attach the first vent component to the starting collars of
thefireplace:
• Make sure that the fiberglass rope ring supplied in the
manualbag seals betweenthe first8inch (203mm)vent
componentand theouter fireplacewrap (seeFigure 14).
Referto CinchPipe (DVP)andTerminationCap installation
instructions.
Figure 14. Fiberglass Rope Ring
FIBERGLASS ROPE
RING
FIRST VENT COMPONENT
OUTER
WRAP
2. ContinueAdding Vent Components
• Continueadding ventcomponents snap-locking,locking
eachsucceedingcomponent into place.
• Ensurethat eachsucceeding ventcomponent issecure-
ly fitted and locked into the preceding component in the
ventsystem.Securing pipe sectionswith a maximum of
two screws is recommended.
• 90° elbows may be installed and rotated to any point
aroundthe preceding component’svertical axis.Ifan el-
bow does not end up in a locked position with the pre-
ceding component, attach with a minimum of two (2)
sheet metal screws.
3. Install Support Brackets
Refer to Cinch Pipe and Termination Cap installation
instructions.
!
WARNING: ENSURE THATTHEFIBERGLASS
GASKET SUPPLIED WITH THE FIREPLACE
SEALSBETWEEN THE FIRSTVENT COMPONENT
ANDTHE OUTERFIREPLACE WRAP.

18 Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
4. Install Firestops
For Horizontal Runs - Firestops are REQUIRED on both
sidesof a combustiblewall through whichthe ventpasses.
NOTE: Model DVP-TRAP does not need an exterior
firestop on an exterior combustible wall.
To install firestops for horizontal runs that pass through
eitherinterioror exterior walls:
• Cuta10-inchby12-inch (254mmX305mm) holethrough
the wall.
NOTE: The center of the hole is one (1) inch (25.4mm)
above the center of the horizontal vent pipe.
• Position the firestops on both sides of the hole previ-
ously cut and secure the firestops with nails or screws.
• The heat shields of the firestops MUST BE placed to-
wards the top of the hole.
• Continuethe vent run throughthe firestops.
Figure 15. 10" x 12" Hole and Vent Pipe
Figure 16. Heat Shield, Interior & Exterior Firestops
TRIM HEAT
SHIELD IF TOO
LONG, ADD TO
SHIELD IF TOO
SHORT
EXTERIOR
FIRESTOP
INTERIOR
FIRESTOP
HEAT SHIELD
NOTE: There must be NO INSULATION or other
combustibles inside the framed firestop opening.
10"
12"
INTERIOR
WALL SHIELD
For Vertical Runs - One ceiling firestop is REQUIRED at
the hole in each ceiling through which the vent passes.
Toinstallfirestopsforvertical runsthatpassthroughceilings:
• Positiona plumb bobdirectlyover the centerof the verti-
calvent component.
• Mark the ceiling to establish the centerpoint of the vent.
• Drill a hole or drive a nail through this centerpoint.
• Check the floor above for any obstructions, such as wir-
ingor plumbing runs.
• Reposition the fireplace and vent system, if necessary,
to accommodate the ceiling joists and/or obstructions.
• Cutan10-inch X10-inch(254mmX 254mm)holethrough
theceiling,using the centerpoint previouslymarked.
• Framethe hole withframing lumberthe same sizeas the
ceiling joists.
Figure 18. Ceiling Firestop (Ceiling Side)
If the area above the ceiling is NOT an attic, position and
securetheceilingfirestopon theceilingsideofthepreviously
cutandframed hole.
Figure 17. 10" x 10" Hole & New Framing Members
JOIST
CEILING FIRESTOP
CEILING
NAILS (4 REQUIRED)
CEILING
NEW
FRAMING
MEMBERS
EXISTING CEILING
JOISTS
CHIMNEY
HOLE
10" (254mm)
10" (254mm)
NOTE: There must be NO INSULATION or other
combustibles inside the framed firestop opening.

19Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
!
C. Vent Termination
For Horizontal Terminations - To attach and secure the
terminationto the lastsection of horizontalventrefer tothe
Cinch Pipe andTermination Cap installation instructions.
• Pushandsnap-lock the endsasdescribed at thebegin-
ning of the Installing Vent Components section.
• Thetermination kitshouldpass throughthe wallfirestops
fromtheexterior of the building.
• Adjustthe termination captoits final exteriorposition on
thebuilding.
WARNING: THETERMINATIONCAPMUSTBE
POSITIONEDSOTHAT THEARROW IS POINT-
ING UP.
For trapezoidal cap termination kits:
• Usingscrews secure thecap to theexterior wall through
the flanges in the cap.
Figure 20. Trapezoid Termination Cap
!
WARNING: VENTING TERMINALS SHALL
NOT BE RECESSED INTOAWALL OR SID-
ING. VENT TERMINATION CLEARANCES MUST
BE FOLLOWED TO AVOID FIRE DANGER. SEE
VENTTERMINATION MINIMUM CLEARANCES DI-
AGRAM ON THE FOLLOWING PAGE.
7 1/4”
(184mm)
Ifthe areaabovethe ceilingIS an attic,position andsecure
thefirestopon top ofthepreviously framed hole.
NOTE: Keep insulation away from the vent pipe at least
1 inch (25mm).
Figure 19. Attic Firestop
CEILING
CEILING FIRESTOP
RAFTER
NAILS (4 REQUIRED)

20 Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
V=VENT TERMINAL X=AIR SUPPLYINLET =AREAWHERETERMINALISNOTPERMITTED
Figure 21. Vent Termination Minimum Clearances
A = 12" ....................... 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* = 18" ....................... vertical clearance to unventilat-
ed soffit or to ventilated soffit lo-
cated above the terminal
*30” ...................... for vinyl clad soffits and below
electrical service
F = 9" ........................ clearance to outside corner
G = 6" ......................... clearance to inside corner
H = 3 ft. (Canada) ...... not to be installed above a gas
meter/regulator assembly within
3feet(90cm)horizontallyfrom the
center-line of the regulator
I = 3ft.(U.S.A.)
6 ft. (Canada) ...... clearance to gas service regu-
lator vent outlet
J = 9"(U.S.A.)
12" (Canada) ........ clearance to non-mechanical air
supply inlet to building or the
combustion air inlet to any other
appliance
K = 3ft.(U.S.A.)
6 ft. (Canada) ......... clearance to a mechanical
air supply inlet
L** = 7ft.......................... clearance above paved
sidewalk or a paved driveway
located on public property
M*** = 18" ......................... clearance under veranda,
porch,deck,balconyor over-
hang
42” ......................... vinyl
N = 6” ........................... non-vinyl sidewalls
12” ......................... vinyl sidewalls
P = 8ft.
CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE
INSTALLED.
** a vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family dwellings
and serves both dwellings.
*** only permitted if veranda, porch, deck or balcony is fully open on
a minimum of 2 sides beneath the floor, or meets Note 2.
NOTE 1: On private property where termination is less than 7 feet
above a sidewalk, driveway, deck, porch, veranda or balcony, use of
a listed cap shield is suggested.
NOTE 2: Termination in an alcove space (spaces open 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 termination caps. 2. All mechanical air intakes within 10 feet
of a termination cap must be a minimum of 3 feet below the termination
cap. 3. All gravity air intakes within 3 feet of a termination cap must be
a minimum of 1 foot below the termination cap.
(See Note 1)
(See Note 1)
(See Note 2)
S = 6" .......................... clearance from sides of elec-
trical service
T = 12" ......................... clearance above electrical
service
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
QMIN RMAX
1 cap 3 feet 2 x Q ACTUAL
2 caps 6 feet 1 x Q ACTUAL
3 caps 9 feet 2/3 x Q ACTUAL
4 caps 12 feet 1/2 x Q ACTUAL
QMIN = # termination caps x 3 RMAX = (2 / # termination caps) x QACTUAL
(See Note 5)
(See Note 5)
Electrical
Service
V
S
VS
V
T
D*
V
NOTE 3: Local codes or regulations may require different
clearances.
NOTE 4: Termination caps may be hot. Consider their proximity to
doors or other traffic areas.
NOTE 5: Location of the vent termination must not interfere with
access to the electrical service.
WARNING: In the U.S: Vent system termination is NOT permitted
in screened porches. You must follow side wall, overhang and
ground clearances as stated in the instructions.
In Canada: Vent system termination is NOT permitted in screened
porches. Vent system termination is permitted in porch areas
with two or more sides open. You must follow all side walls,
overhang and ground clearances as stated in the instructions.
Heat & Glo assumes no responsibility for the improper perfor-
mance of the fireplace when the venting system does not meet
these requirements.
DE
B
L
v
v
v
v
v
v
v
v
BB
AH
M
X
J or K
I
A
G
F
U.S.
(3 FT)
B
MN
P
R
Q

21Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
For Vertical Terminations - To locate the vent and install
the vent sections:
• Locate and mark the vent centerpoint on the underside
oftheroof, and driveanail through thecenterpoint.
• Maketheoutline of the roofhole around the centerpoint
nail.
• Thesizeoftheroofholeframingdimensionsdependonthe
pitchoftheroof.ThereMUSTBE a1-inch(25.4mm)clear-
ancefromthevertical ventpipetocombustible materials.
• Marktheroof hole accordingly.
• Coverthe opening oftheinstalled vent pipes.
• Cutandframe the roofhole.
• Use framing lumber the same size as the roof rafters
andinstallthe framesecurely. Flashing anchoredto the
framemust withstand heavy winds.
• Continue to install concentric vent sections up through
theroofhole (for inside ventinstallations) or up pastthe
roof line until you reach the appropriate distance above
theroof (for outsideterminations).
RoofPitch H (min.) ft.
flat to 6/12 1.0
6/12 to 7/12 1.25
over7/12 to 8/12 1.5
over8/12 to 9/12 2.0
over9/12 to 10/12 2.5
over10/12 to11/12 3.25
over11/12to 12/12 4.0
over12/12 to14/12 5.0
over14/12 to16/12 6.0
over16/12 to18/12 7.0
over18/12 to20/12 7.5
over20/12 to21/12 8.0
Figure 22. Minimum Height from Roof to
Lowest Discharge Opening
HORIZONTAL
OVERHANG
V
ERTICAL
WALL
TERMINATION
CAP
12 X
ROOF PITCH
IS X/ 12
LOWEST
DISCHARGE
OPENING
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
2 FT.
MIN. 20 INCH MIN.
!
To seal the roof hole, and to divert rain and snow from the
vent system:
• Attach a flashing to the roof using nails, and use a non-
hardening mastic around the edges of the flashing base
where it meets the roof.
• Attach a storm collar over the flashing joint to form a
water-tightseal. Place non-hardeningmastic around the
joint, between the storm collar and the vertical pipe.
• Slide the termination cap over the end of the vent pipe
and snap into place.
WARNING: MAJOR U.S. BUILDING CODES
SPECIFY MINIMUM CHIMNEY AND/OR
VENTHEIGHTABOVETHEROOFTOP.THESEMIN-
IMUM HEIGHTS ARE NECESSARY IN THE INTER-
EST OF SAFETY. SEE THE PREVIOUS DIAGRAM
FOR MINIMUM HEIGHTS, PROVIDED THE TERMI-
NATION CAPISATLEAST20INCHESFROMAVER-
TICALWALLAND 2-FEETBELOWAHORIZONTAL
OVERHANG.
NOTE: This also pertains to vertical vent systems in-
stalled on the outside of the building.
Step 4. Positioning, Leveling and
Securing the Fireplace
• Place the fireplace into position.
• Level the fireplace from side to side and front to back.
• Shim the fireplace with non-combustible material, such
as sheet metal, as necessary.
• Securethefireplace totheframingbynailingorscrewing.
Thediagram below shows howto properly position, level,
andsecurethe fireplace.
Figure 23. Proper Positioning,
Leveling and Securing of a Fireplace
NAILING TABS
(BOTH SIDES)

22 Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
Step 5. Installing the Optional Heat-Out
or Heat-Zone Kits
Figure24
3.Cut andframe a12” widex 10”tall (305x 254mm)hole in
the exterior wall. The center of the hole will be 22-15/16”
(583mm)above thebaseof thefireplace. See Figure3.
4. Install the interior firestop with the hole towards the top.
Securethe firestop towall framing members.
Reference the Heat-Out kit instructions for the remaining
installations steps.
NOTE:Theremustbe NOINSULATIONor othercom-
bustiblesinside theframedfirestop opening.
Heat-Out Kit
1. Remove the Heat-Out knockout from the fireplace and
discard it (see Figure 24).
2. Center the rear collar around the exposed hole and at-
tach it to the fireplace with 3 screws. NOTE: Remove the
bottom knockout on the collar for typical 2 x 4 or 2 x 6 wall
construction.SeeFigure 24.
REAR COLLAR
BOTTOM
KNOCKOUT
HEAT-OUT
KNOCKOUT
HEAT-ZONE
KNOCKOUTS
Heat-Zone Kit
1. Remove the knockout from the top of the fireplace and
discard it (see Figure 24).
2. Center the duct collar around the exposed hole and at-
tach it to the fireplace with 3 screws. NOTE: Do this BE-
FORE finalpositioning of thefireplace.
3. Determine the location for the air register/fan housing
assembly.
ReferencetheHeat-Zone kit instructionsforthe remaining
installations steps.
!
!
!
Step 6 The Gas Control System
WARNING: THIS UNIT IS NOTFORUSE WITH
SOLID FUEL.
The type of gas control system used with this model is
Intermittent Pilot Ignition.
Intermittent Pilot Ignition System
This system includes millivolt control valve, standing pilot,
thermopile/thermocoupleflame sensor, and piezoignitor.
WARNING: 110-120 VAC MUST NEVER BE
CONNECTED TO A CONTROL VALVE IN A
MILLIVOLT SYSTEM.
WARNING: CONTINUOUS 110-120 VAC SER-
VICEMUSTBEWIRED DIRECTLYTOTHEFIRE-
PLACEJUNCTION BOX.
Figure 25. Gas Controls System
FLAME SENSOR
ROD
IntermittentPilotIgnition

23Heat & Glo • GEM36 • 370-900 Rev. O • 2/05
• At the gas line access hole, use insulation to re-pack
the space around the gas pipe.
• Insert insulation from the outside of the fireplace and
pack the insulation tightly to totally seal between the
pipe and the outer casing.
Step 7. The Gas Supply Line
NOTE: Have the gas supply line installed in accordance
with local building codes by a qualified installer ap-
proved and/or licensed as required by the locality. (In
theCommonwealth of Massachusettsinstallationmust
be performed by a licensed plumber or gas fitter).
NOTE: Before the first firing of the fireplace, the gas
supply line should be purged of any trapped air.
NOTE: Consult local building codes to properly size
the gas supply line leading to the 1/2 inch (13mm)
hook-up at the unit.
This gas fireplace is designed to accept a 1/2 inch
(13 mm) gas supply line. To install the gas supply line:
• Alisted(andCommonwealthofMassachusettsapproved)
1/2inch (13mm)tee-handle manualshut-off valveand a
listed flexible gas connector are connected to the 1/2
inch (13mm) inlet of the control valve. NOTE: If substi-
tutingfor these components,please consultlocal codes
forcompliance.
• Locate the gas line access hole in the outer casing of
thefireplace.
• Thegas line maybe run fromeither side ofthefireplace
providedtheholeintheouterwrapdoesnotexceed2 1/2”
indiameter and itdoes notpenetratethe actualfirebox.
• Thegap betweenthe supplypiping andgas accesshole
can be plugged with non-combustible insulation to pre-
ventcoldair infiltration.
• Open the fireplace lower grille, insert the gas supply line
throughthegaslinehole,andconnectittotheshut-offvalve.
• Whenattaching the pipe,supportthe controlsothat the
lines are not bent or torn.
• After the gas line installation is complete, all connec-
tions must be tightened and checked for leaks with a
commercially-available,non-corrosive leak check solu-
tion.Be sure torinse off allleak checksolutionfollowing
testing.
WARNING: DO NOT USEAN OPEN FLAME TO
CHECKFOR GASLEAKS.
!
Step 8. Gas Pressure Requirements
Pressurerequirementsfor Heat & Glo gasfireplaces are
shown in the table below.
Pressure Natural Gas Propane
Minimum 5.0 inches 11.0 inches
InletPressure w.c. w.c.
MaximumInlet 14.0 inches 14.0 inches
Gas Pressure w.c. w.c.
Manifold 3.5 inches 10.0 inches
Pressure w.c. w.c.
A one-eighth (1/8) inch (3 mm) N.P.T. plugged tapping is
providedon the inletand outletside of thegas controlfor a
test gauge connection to measure the manifold pressure.
Usea small flatblade screwdriver tocrack open thescrew
inthe centerofthe tap.Position arubber hoseoverthe tap
toobtainthe pressure reading.
The fireplace and its individual shut-off valve must be
disconnected from the gas supply piping system during
any pressure testing of the system at test pressures in
excess of one-half (1/2) psig (3.5 kPa).
The fireplace must be isolated from the gas supply piping
system by closing its individual shut-off valve during any
pressure testing of the gas supply piping system at test
pressuresequaltoorlessthanone-half(1/2) psig(3.5kPa).