Heat & Glo CERONA-36 User manual

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06 1
Models:
CERONA-36
CERONA-42
Owner’s Manual
Installation and Operation
• Donotstoreorusegasolineorotherflamma-
blevapors and liquidsin the vicinityof this or
anyotherappliance.
• What to do if you smell gas
- Donottry tolightany appliance
- Do not touch any electrical switch. Do not
useanyphoneinyourbuilding.
- Immediately call your gas supplier from a
neighbor’sphone.Followthegassupplier’s
instructions.
- If you cannot reach your gas supplier, call
thefiredepartment.
• Installationandservicemustbeperformedby
aqualifiedinstaller,serviceagency,orthegas
supplier.
WARNING: Iftheinformation inthese
instructionsis not followed exactly, a fire
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
instructions 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 or factory-trained
professionals, or technicians supervised
by an NFI certified professional.
•••
DO NODO NO
DO NODO NO
DO NOTT
TT
T
DISCARDDISCARD
DISCARDDISCARD
DISCARD
IntheCommonwealth of Massachusetts:
• Installationmustbe performed byalicensedplumberor
gas fitter;
SeeTable of Contents for location of additional
CommonwealthofMassachusettsrequirements.
Read, understand and follow
these instructions for safe
installation and operation.
Leave this manual with
party responsible for
use and operation.

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
2
Congratulations
Listing Label Information/Location
Model Name:___________________________________________ Datepurchased/installed: _________________
Serial Number: _________________________________________ Location on appliance: ____________________
Dealership purchased from: _______________________________ DealerPhone: __________________________
Notes: _______________________________________________________________________________________
____________________________________________________________________________________________
Congratulations on selecting a Heat & Glo gas appliance
—an elegant and clean alternative to wood burning
appliances.TheHeat&Glogas appliance you 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’s Manual. Pay special attention to all Cautions
and Warnings.
ThisOwner’s Manualshouldbe retainedforfuture reference.
We suggest that you keep it with your other important
documentsandproductmanuals.
Theinformationcontained in thisOwner’sManual, unless
noted otherwise, applies to all models and gas control
systems.
Your new Heat & Glo gas appliance will give you years of
durableuseandtrouble-freeenjoyment.WelcometotheHeat
&Glofamilyofapplianceproducts!
Read this manual before installing or operating this appliance.
Please retain this owner’s manual for future reference.
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
Heat & Glo, a of Hearth & HomeTechnologies, Inc. brand
20802 KensingtonBoulevard, Lakeville, MN 55044
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
intheUSAor CAN/CGA B149installation codes.(Installer l’appareil selonlescodesou reglements
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
ALTITUDE: 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
This product ma
y
be covered b
y
one or more of the followin
g
patents:
(
Nos produits sont couverts par un ou plusieurs des brevets suivants
)
:
(
United States
)
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 other U.S. and foreign patents pending (ou
autres brevets americains et etrangers en attente).
Where everything comes together

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06 3
- Table of Contents -
Section 1: Listing and Code Approvals
A. Appliance Certification ................................. 4
B. BTU Specifications ....................................... 4
C. High Altitude Installations............................. 4
E. Non-Combustible Materials Specification ...4
F. Combustible Materials Specification ...........4
G. Requirements for the Commonwealth
of Massachusetts.........................................5
Section 2: Getting Started
A. Design and Installation Considerations...... 6
B. Tools and Supplies Needed ........................6
C. Inspect Appliance and Components............6
Section 3: Framing and Clearances
A. Selecting Appliance Location .......................7
B. Constructing the Appliance Chase ..............8
C. Clearances ................................................... 8
D. Mantel Projections ........................................9
E. Hearth Extension ........................................10
Section 4: Termination Locations
A.Vent Termination Minimum Clearances .... 11
B. Continue Adding Vent Components...........13
C. Install Support Brackets .............................13
Section 5: Vent Information and Diagrams
A. Vent Table Key ............................................14
B. Use of Elbows ............................................14
C. Measuring Standards .................................14
D. Vent Diagrams ............................................15
Section 6: Vent Clearances and Framing
A. Pipe Clearances to Combustibles ............18
B. Wall Penetration Framing ..........................18
C. Vertical Penetration Framing......................19
Section 7: Appliance Preparation
A. Removing non-combustible Facing
Material Assembly ......................................20
B. Securing and Leveling the Appliance.........21
C. Installing non-combustible Facing Material ...21
D. Installing Flue Restrictors ..........................22
Section 8: Installing Vent Pipe
A. Assembly of Vent Sections.........................23
B. Disassembly of Vent Sections ...................25
C. Installing Heat Shield & Termination Cap .26
D. Installing Roof Flashing and Vertical
Termination Cap .........................................27
Section 9: Gas Information
A. Fuel Conversions ....................................29
B. Gas Pressures ........................................29
C. Gas Connection.......................................29
Section 10: Electrical Information
A. Recommendation for Wire ......................31
B. Connecting to the Appliance ....................31
C. Intellifire Ignition System Wiring ..............31
D. Junction Box Installation..........................33
Section 11: Finishing
A. Mantel Projections ...................................34
B.Facing Material ........................................34
C. Finishing Material Requirements............35
D. Hearth Extension .....................................36
Section 12: Appliance Setup
A. Remove Shipping Materials ....................37
B. Clean the Appliance.................................37
C. Accessories .............................................37
D. Ember Placement....................................37
E. Positioning the Logs ...............................38
F. Glass Assembly.......................................42
G. Grilles and Trim .......................................42
H. Air Shutter Setting ....................................42
Section 13: Operating Instructions
A. Before Lighting Appliance........................43
B. Lighting Appliance ...................................44
C. After Appliance is Lit.................................45
D. Frequently Asked Questions ...................45
Section 14: Troubleshooting
A. Intellifire Ignition System .........................46
Section 15: MaintainingandServicing Appliance. ...........47
Section 16: Reference Materials
A. Appliance Dimensions Diagram.............50
B. Vent Components Diagrams...................51
C. Service Parts............................................55
D. Warranty ...................................................61
E. Contact Information..................................62

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
4
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 as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.
Listing and Code Approvals
C. HighAltitude Installations
U.L.Listedgas appliancesaretestedand 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
changingtheexisting 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., or 10% for elevations
between2000 and 4500feetin Canada.Iftheheating value
of the gas has been reduced, these rules do not apply. To
identify the proper orifice size, check with the local gas
utility.
If installing this appliance at an elevation above 4500 feet
(in Canada), check with local authorities.
B. BTU Specifications
1
MODEL: CERONA-36, CERONA-42
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Gas Fireplace Heater
STANDARD: ANSI Z21.88b-2005•CSA2.33b-M2005•UL307B
Model
(U.S. or Canada)
Maximum
Input BTUH Minimum Input BTUH
Orifice
Size
(DMS)
Cerona-36 (NG)
US
(0-2000 FT) 37,500 25,000 32
CAN
(2000-4500 FT) 33,750 22,300 33
Cerona-42 (NG)
US
(0-2000 FT) 45,000 32,000 29
CAN
(2000-4500 FT) 40,500 28,800 30
WARNING
Do NOT use this appliance if any part has been under
water. Immediately call a qualified service technician to
inspectthe applianceand toreplace anypartof thecontrol
system and any gas control which has been under water.
This product is listed to ANSI standards for “Vented Gas
Appliance Heaters” and applicable sections of “Gas Burn-
ingHeatingAppliances for Manufactured Homes and Rec-
reational Vehicles”, and “Gas Fired Appliances for Use at
HighAltitudes”.
Heat & Glo Quality Systems
registeredby SGS ICS
This model may be installed in a bedroom or bed-sitting
room in the U.S.A. and Canada. E. Non-Combustible Materials Specification
Material which will not ignite and burn. Such materials are
thoseconsisting entirely of steel, iron, brick, tile, concrete,
slate, glass or plasters, or any combination thereof.
MaterialsthatarereportedaspassingASTM E 136, Stan-
dard Test Method for Behavior of Materials in a Verti-
cal Tube Furnace at 750oC, shallbeconsiderednon-com-
bustiblematerials.
F. Combustible Materials Specification
Materials made of or surfaced with wood, compressed pa-
per, plant fibers, plastics, or other material that can ignite
andburn,whetherflameproofedornot,orwhetherplastered
orunplasteredshall be consideredcombustiblematerials.

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06 5
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)
feetabovefinished grade in the areaoftheventing,includ-
ing but not limited to decks and porches, the following re-
quirements shall be satisfied:
Installation of Carbon Monoxide Detectors
Atthetimeof installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or gas fitter
shallobserve 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,theinstallingplumberorgasfitter shall observe that a
battery operated or hard wired carbon monoxide detector
with an alarm is installed on each additional level of the
dwelling,buildingorstructureserved by the side wall hori-
zontalventedgas fueled equipment. It shallbetherespon-
sibilityofthe property owner tosecuretheservicesof qual-
ifiedlicensedprofessionals fortheinstallationof hardwired
carbonmonoxidedetectors.
In the event that the side wall horizontally vented gas fu-
eledequipmentisinstalledinacrawlspaceoranattic,the
hard wired carbon monoxide detector with alarm and bat-
tery 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
ownershallhavea period of thirty (30) days tocomplywith
theaboverequirements;provided,however,thatduringsaid
thirty(30)dayperiod, a battery operated carbon monoxide
detector with an alarm shall be installed.
Approved Carbon Monoxide Detectors
Eachcarbonmonoxide detector asrequiredinaccordance
withtheaboveprovisionsshallcomplywith NFPA720 and
beANSI/UL2034 listed and IAS certified.
Signage
Ametal or plastic identification plate shall be permanently
mountedtothe exterior of thebuildingata minimum height
of eight (8) feet above grade directly in line with the ex-
haust vent terminal for the horizontally vented gas fueled
heating appliance or equipment. The sign shall read, in
print size no less than one-half (1/2) inch in size, “GAS
VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OB-
STRUCTIONS”.
Inspection
Thestateorlocalgasinspectorofthe side wall horizontally
ventedgasfueledequipment shall not approve theinstalla-
tion unless, upon inspection, the inspector observes car-
bonmonoxidedetectorsandsignageinstalledinaccordance
withtheprovisionsof248CMR 5.08(2)(a)1 through 4.
Exemptions
Thefollowingequipmentisexemptfrom248CMR5.08(2)(a)1
through4:
• TheequipmentlistedinChapter10entitled“Equipment
Not Required To Be Vented” in the most current edition
of NFPA54 as adopted by the Board; and
• ProductApproved side wall horizontally vented gas fu-
eledequipmentinstalledin a room or structure separate
fromthe dwelling, building or structure used in whole or
inpartfor residential purposes.
MANUFACTURERREQUIREMENTS
Gas Equipment Venting System Provided
Whenthemanufacturer of ProductApproved side wall hori-
zontally vented gas equipment provides a venting system
designorventing system components with the equipment,
the instructions provided by the manufacturer for installa-
tionoftheequipmentandtheventingsystemshallinclude:
• 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
ventingsystem.
Gas Equipment Venting System NOT Provided
When the manufacturer of a Product Approved side wall
horizontallyventedgasfueledequipmentdoesnotprovide
the parts for venting the flue gases, but identifies “special
venting systems”, the following requirements shall be sat-
isfiedby the manufacturer:
• Thereferenced“specialventingsystem”instructionsshall
beincludedwiththeapplianceorequipmentinstallation
instructions;and
• The“special ventingsystems”shallbeProductApproved
by the Board, and the instructions for that system shall
includea parts list and detailed installation instructions.
Acopyofall installationinstructions forallProductApproved
sidewallhorizontally ventedgasfueledequipment, all vent-
ing instructions, all parts lists for venting instructions, and/
or all venting design instructions shall remain with the ap-
pliance 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.
G. Requirements for the Commonwealth of
Massachusetts

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
6
A. Design and Installation Considerations
Heat&Glo direct vent gas appliances are designed to op-
erate with all combustion air siphoned from outside of the
buildingand all exhaust gases expelled to the outside. No
additionaloutside air source is required.
Getting Started
C. Inspect Appliance and Components
2
When planning an appliance installation, it’s necessary to
determine the following information before installing:
•Where the appliance is to be installed.
•The vent system configuration to be used.
•Gas supply piping.
•Electrical wiring.
•Framing and finishing details.
•Whether optional accessories—devices such as a fan,
wall switch, or remote control—are desired.
B. Tools and Supplies Needed
Before beginning the installation be sure that the following
tools and building supplies are available.
Reciprocating saw Framing material
Pliers Hi temp caulking material
Hammer Gloves
Phillips screwdriver Framing square
Flat blade screwdriver Electric drill and bits (1/4 in.)
Plumb line Safety glasses
Level 1/2 - 3/4 inch length, #6 or #8 Self-drilling screws
Manometer Voltmeter
Tapemeasure Noncorrosiveleakchecksolution
One 1/4 inch female connection (for optional fan).
• Carefully remove the appliance and components from
the packaging.
• Thevent systemcomponentsandtrimdoorsareshipped
in separate packages.
• Thegas logs may be packagedseparatelyand must be
field installed.
• Report to your dealer any parts damaged in shipment,
particularly the condition of the glass.
• Read all of the instructions before starting the in-
stallation. Follow these instructions carefully dur-
ing 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 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 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.

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06 7
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
toconsiderthe required clearances towalls(seeFigure3.1).
Figure 3.1 Appliance Locations
CERONA-36 A B C D E F G
Inches 51 42-1/8 73-1/4 36 65-1/2 1/2 22-1/4
Millimeters 1295 1070 1861 914 1664 13 565
NOTE: For actual appliance dimensions refer to Sec-
tion 16.
In addition to these framing dimensions, also reference the
following sections:
• Clearances and Mantel Projections (Section 3.C and 3.D)
• Vent Clearances and Framing (Section 6).
ALCOVE
INSTALLATION
A
B
C
D
E
F
G
B
A
CERONA-42 A B C D E F G
Inches 56-5/8 49-1/8 80-1/8 36 72-1/2 1/2 22-1/4
Millimeters 1438 1248 2035 914 1842 13 565

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
8
B. Constructing theAppliance Chase
A chase is a vertical boxlike structure built to enclose the
gas appliance and/or its vent system. Vertical vents that
run on the outside of a building may be, but are not re-
quired to be, installed inside a chase.
Construction of the chase may vary with the type of building.
Theseinstructions are not substitutes for the requirements of
localbuildingcodes.LocalbuildingcodesMUST bechecked.
Chasesshouldbeconstructed inthe manner of all outside
walls of the home to prevent cold air drafting problems.
The chase should not break the outside building envelope
in any manner.
Walls, ceiling, base plate and cantilever floor of the chase
shouldbe insulated.Vaporandair infiltrationbarriersshould
be installed in the chase as per regional codes for the rest
of the home. Additionally, in regions where cold air infiltra-
tionmaybeanissue,theinsidesurfacesmaybesheetrocked
and taped for maximum air tightness.
To furtherpreventdrafts,thewall shieldandceilingfirestops
shouldbe caulkedwithhightemperature caulktoseal gaps.
Gas line holes and other openings should be caulked with
C. Clearances
Figure 3.2 Clearances to Combustibles
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
CLEARANCES TO COMBUSTIBLES:
ABCD E F G HIJ
Rough
Opening
(Vent Pipe)
Rough
Opening
(Height)
Rough
Opening
(Depth)
Rough
Opening
(Width)
Clearance to
Ceiling from Top
of Arch Opening
Non-Combustible
Floor Combustible Flooring Behind Appliance Sides of Appliance Front of Appliance
Cerona-36 in 10 50-1/2 22-1/4 42-1/8 49 0 8 1/2 1/2 36
mm 254 1283 565 1070 1245 0 203 13 13 914
Cerona-42 in 10 54-1/2 22-1/4 49-1/8 45-1/4 0 8 1/2 1/2 36
mm 254 1384 565 1248 1149 0 203 13 13 914
Fire Risk.
•Construct chase to all clearance
specifications in manual.
•Locate and install appliance to all
clearance specifications in manual
WARNING
high temp caulk or stuffed with unfaced insulation. If the
appliance is being installed on a cement slab, a layer of
plywood may be placed underneath to prevent conducting
cold up into the room.
F
GH
J
I
E
A
B
C
D

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06 9
D. Mantel Projections
Figure 3.4 Clearances to Mantel Legs or Wall Projections
(Acceptable on both sides of opening.)
A
Top View
INTERIOR WALL
B
MANTEL LEG OR WALL PR
O
JECTI
O
NS
Figure 3.5
Figure 3.3 Clearances to Mantels or other
Combustibles above Appliance
NON-COMBUSTIBLE
FACING MATERIAL
COMBUSTIBLE
FACING MATERIAL
1 in.
TYPICAL
D
MINIMUM
FROM TOP OF ARCH
OPENING TO FIRST
MANTEL PROJECTION
E
MINIMUM
FROM TOP OF ARCH
OPENING TO CEILING
FIREPLACE HEADER
1"2"3" 4"5"6"7"8" 9"
10"
11"
12"
TOP OF ARCH OPENING
CEILING
A
B
C
CLEARANCE
TO CEILING
MINIMUM
BOTTOM OF FIREPLACE
TO BOTTOM OF
NON-COMBUSTIBLE
FACING MATERIAL
CEILING
COMBUSTIBLE
SHEATHING
NON-COMBUSTIBLE
FACING MATERIAL
IN SHADED AREAS
FIREPLACE
ARCH OPENING
A
B
1 in.
(25)
ABCDE
Cerona-36 in. 32-1/4 16-3/4 16 11 49
mm 819 425 406 279 1245
Cerona-42 in. 28-1/2 16-3/4 16 11 45-1/4
mm 724 425 406 279 1149
AB
Cerona-36 in. 49 16-3/4
mm 1245 425
Cerona-42 in. 45-1/4 16-3/4
mm 1149 425
If A minimum is _____, then Bmaximum is ______.
Ain. 123 4 5 6 7 8 9 10 1112
mm 25 51 76 102 127 152178203 229 254 279
Bin. 123 4 5 6 7 8 9 10 1112
mm 25 51 76 102 127 152178203 229 254 279
∞
∞

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
10
Fire Risk.
Hearth extension required to protect
combustible floors in front of appliance.
WARNING
•An 8 inch minimum hearth extension must be
constructed of non-combustible material.
E. Hearth Extension
Figure 3.6 Hearth Extension Dimensions
AB
Cerona-36 in. 41-1/8 8
mm 1045 203
Cerona-42 in. 48-1/8 8
mm 1222 203
A
B
NAILING TABS
(BOTH SIDES)
Clearance to covered combustible hearth extension
Clearance to exposed combustible hearth extension
1 in.
(25 mm)
8 in.
(203 mm)
WOOD OR OTHER
COMBUSTIBLE
FLOOR OR PLATFORM
MARBLE, GRANITE, TILE OR
OTHER NON-COMBUSTIBLE
HEARTH EXTENSION BOTTOM OF
FIREPLACE
Figure 3.7
Figure 3.8
6 in. 5-1/4 in.
(152 mm)
MAY BE
COMBUSTIBLE
MATERIAL
BOTTOM OF
FIREPLACE
COMBUSTIBLES UP TO
1 INCH THICK ALLOWED
UNDER THE OPENING
WOOD OR OTHER
COMBUSTIBLE
FLOOR OR
PLATFORM
(133 mm)
(6 inch Minimum to top surface of combustible
flooror floor covering.

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06 11
A. Vent Termination Minimum Clearances
Fire Risk.
Explosion Risk.
Maintain vent clearance to combustibles
as specified.
WARNING
• Do not pack air space with insulation or
other materials.
Failure to keep insulation or other materials
away from vent pipe may cause fire.
Roof Pitch H (Min.) Ft.
Flat to 6/12.......................................................... 1.0*
Over 6/12 to 7/12............................................... 1.25*
Over 7/12 to 8/12............................................... 1.5*
Over 8/12 to 9/12............................................... 2.0*
Over 9/12 to 10/12............................................. 2.5
Over 10/12 to 11/12 ...........................................3.25
Over 11/12 to 12/12 ........................................... 4.0
Over 12/12 to 14/12........................................... 5.0
Over 14/12 to 16/12........................................... 6.0
Over 16/12 to 18/12........................................... 7.0
Over 18/12 to 20/12........................................... 7.5
Over 20/12 to 21/12........................................... 8.0
Figure 4.1
Figure 4.2 Minimum Height from Roof to
Lowest Discharge Opening
Termination Locations
4
Measure horizontal clearances from this surface.
Measure vertical clearances from this surface.
Figure 4.3 Multiple Vertical Termination
Figure 4.2 specifies minimum vent heights for various
pitched roofs.
(See Figure 4.4 for specific clearances) * 3 foot minimum in snow regions
GAS, WOOD or FUEL
OIL TERMINATION 20 IN.
(MINIMUM) TO
PERPENDICULAR
WALL (GAS ONLY)
18 IN.
A
GAS
TERMINATION
Gas Termination Wood & Fuel Oil Termination
A 6 in. 20 in.
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 INCHES

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
12
V= VENT TERMINAL X= AIR SUPPLY INLET = AREA WHERE TERMINAL IS NOT PERMITTED
Figure 4.4 Minimum Clearances for Termination
A = 12 inches ............ clearances above grade, veran-
da, porch, deck or balcony
B = 12 inches ............ clearances to window or door
that may be opened, or to per-
manentlyclosed window. (Glass)
D* = 18 inches ............. vertical clearance to unventilat-
ed soffit or to ventilated soffit lo-
cated above the terminal
*30 inches............ for vinyl clad soffits and below
electrical service
F = 9 inches .............. clearance to outside corner
G = 6 inches ............... clearance to inside corner
H = 3 ft. (Canada) ...... not to be installed above a gas
meter/regulatorassembly within3
feet (90cm) horizontally from the
center-line of the regulator
I = 3 ft. (U.S.A.)
6 ft. (Canada)....... clearance to gas service regula-
tor vent outlet
J = 9 inches (U.S.A.)
12 inches (Canada)clearance to non-mechanical air
supply inlet to building or the
combustion air inlet to any other
appliance
K = 3 ft. (U.S.A.)
6 ft. (Canada) ......... clearance to a mechanical
(powered) air supply inlet
L** = 7 ft.......................... clearance above paved side-
walk or a paved driveway lo-
cated on public property
M*** = 18 inches .............. clearance under veranda, porch,
deck, balcony or overhang
42 inches .............. vinyl
CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYLSIDING, IT IS SUGGESTED THAT AVINYL 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. (See vents components page)
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.
MN
P
R
Q
(See Note 1)
(See Note 1)
(See Note 2)
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 permit-
ted 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 appliance 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
S = 6 inches ................. clearance from sides of
electrical service
T = 12 inches................ clearance above electrical
service
(See Note 5)
(See Note 5)
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
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
N = 6 inches................. non-vinyl sidewalls
12 inches .............. vinyl sidewalls
P = 8ft.
Alcove Applications

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06 13
B. Continue Adding Vent Components
To Install the Heat Shield:
1. Determine if the heat shield is required. Do so by mea-
suring the vertical distance between the top horizontal
surfaceof the elbow to any combustible surfaceabove.
If the distance is more than 4 inches, the heat shield is
NOT required. If it is 4 inches or less, the heat shield IS
REQUIRED.Installperthefollowingsteps.SeeFigure4.5.
CORRECT INCORRECT
2. Fasten the shield in place using the four pilot holes pro-
videdinthe part. The shieldshouldbeoriented such that
the 13 1/8 inch dimension (longest dimension) is run-
ning in the same direction the elbow is pointing. The
shieldshouldbe centered directly above the elbow, and
positionedsothatit creates a 1/2 inch airspace between
theshield and the combustible surface. See Figure4.6.
COMBUSTIBLE SURFACE
DIRECTION
UP
HEAT SHIELD
90 ELBOW
0
• If the combustible materials are not in place at the time
of install the elbow heat shield may be screwed to the
exhaust pipe (see Figure 4.7). Cut the tabs as shown
andbenddown. Secure the heatshieldtothepipe main-
taining 3 inch to 4 inch between the pipe and shield.
Refer to Cinch Pipe and Termination Cap installation in-
structions.
• Continueaddingventcomponents,lockingeachsucceed-
ing component into place.
• Ensurethateach succeeding ventcomponentissecure-
ly fitted and locked into the preceding component in the
vent system.
• 90° elbows may be installed and rotated to any point
aroundtheprecedingcomponent’svertical axis. If an 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”
(76mm)
SCREW
C. Install Support Brackets
Refer to Cinch Pipe and Termination Cap installation in-
structions.
HEAT
SHIELD
3” MIN.
(76mm)
COMBUSTIBLE
SURFACE
Figure 4.5
Figure 4.7
Figure 4.6
Fire Risk.
Installation of this fireplace requires the
use of heat shield 570-290 above the first
900elbow in the venting system.
WARNING

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
14
5Vent Information and Diagrams
Fire Hazard.
Explosion Risk.
Asphyxiation Risk.
Do NOT connect this gas appliance to a
chimney flue serving a separate solid-fuel or
gas burning appliance.
• Vent this appliance directly outside.
• Use separate vent system for this
appliance.
May impair safe operation of this appliance or
other appliances connected to the flue.
WARNING
CAUTION
ALL vent configuration specifications MUST be followed.
• This product is tested and listed to these
specifications.
• Appliance performance will suffer if specifications are
not followed.
B. Use of Elbows
Diagonal runs have both vertical and horizontal vent as-
pectswhen calculating the effects.Use the rise for the ver-
tical aspect and the run for the horizontal aspect (see Fig-
ure 5.1).
Two 450elbowsmaybe used in place of one 900elbow. On
450runs, one foot of diagonal is equal to 8.5 inches hori-
zontal run and 8.5 inches vertical run. A length of straight
pipe is allowed between two 450elbows (see Figure 5.1).
Figure 5.1
A. Vent Table Key
The abbreviations listed in this vent table key are used in
the vent diagrams.
Symbol Description
V1First section (closest to appliance) of vertical length
V2Second section of vertical length
H1First section (closest to appliance) of horizontal length
H2Second section of horizontal length
C. Measuring Standards
Vertical and horizontal measurements listed in the vent
diagrams were made using the following standards.
1. Pipemeasurementsareshown usingtheeffectivelength
ofpipe (see Figure 5.2).
2. Measurementsaremadefromtheapplianceouter wrap,
notfromthestandoffs.
3. Horizontal terminations are measured to the outside
mounting surface (flange of termination cap) (see Fig-
ure4.1).
4. Vertical terminations are measured to bottom of termi-
nation cap.
5. Horizontalpipeinstalledlevel with no rise.
Figure 5.2 DVP Pipe Effective Length
Effective
Height/Length
DVP4 4 102
DVP6 6 152
DVP12 12 305
DVP24 24 610
DVP36 36 914
DVP48 48 1219
DVP6A 3 to 6 76 to152
DVP12A 3 to 12 76to305
DVP12MI 3 to 12 76to305
DVP24MI 3 to 24 76to610
Length/Inches
Pipe
DVP PIPE
Horizontal
Vertical
8-1/2 in.
8-1/2 iN.
12in.

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06 15
Cerona-36 ONLY >
Figure 5.3
Figure 5.4
D. Vent Diagrams
Fire Risk. Explosion Risk.
Do NOT pack insulation or other combustibles between ceiling firestops.
• ALWAYS maintain specified clearances around venting and firestop systems.
• Install wall shield and ceiling firestops as specified.
Failure to keep insulation or other material away from vent pipe may cause fire.
WARNING
1. Top Vent - Horizontal Termination
One Elbow
Two Elbows
V1Minimum H1+ H1Maximum
0.5 ft 152 mm 2 ft 610 mm
1 ft 305 mm 2 ft 610 mm
2 ft 610 mm 5 ft 1.5 m
3 ft 914 mm 8 ft 2.4 m
4 ft 1.2 m 11 ft 3.4 m
5 ft 1.5 m 14 ft 4.3 m
6 ft 1.8 m 17 ft 5.2 m
7 ft 2.1 m 20 ft 6.1 m
8 ft 2.4 m 23 ft 7.0 m
V1+ H1+ H2= 63 ft (19.2 m) Maximum
H1 + H2= 23 ft (7.0 m) Maximum
V
1
H 1
H 2
H 1
V
1
INSTALLED
HORIZONTALLY
NOTE:Musthave
a minimum verti-
calventbeforeat-
taching a 90oel-
bow to the unit.
See chart.
Cerona-36 ONLY > V1Minimum H1Maximum
0.5 ft 152 mm 2 ft 610 mm
1 ft 305 mm 2 ft 610 mm
2 ft 610 mm 5 ft 1.5 m
3 ft 914 mm 8 ft 2.4 m
4 ft 1.2 m 11 ft 3.4 m
5 ft 1.5 m 14 ft 4.3 m
6 ft 1.8 m 17 ft 5.2 m
7 ft 2.1 m 20 ft 6.1 m
8 ft 2.4 m 23 ft 7.0 m
V1= 40 ft (12.2m) Maximum
H1= 23 ft (7.0 m) Maximum
V1+ H1= 63 ft (19.2m) Maximum
Minimal Vertical Vent
Model ft. mm
Cerona-36 0.5 152
Cerona-42 1305
NOTE:Musthave
a minimum verti-
calventbeforeat-
taching a 90oel-
bow to the unit.
See chart.
Minimal Vertical Vent
Model ft. mm
Cerona-36 0.5 152
Cerona-42 1305

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
16
Cerona-36 ONLY >
Figure 5.5
1. Top Vent - Horizontal Termination - (continued)
Three Elbows V1+V2 Minimum H1+ H2Maximum
0.5 ft 152 mm 3 ft 914 mm
1 ft 305 mm 4 ft 1.2 m
2 ft 610 mm 7 ft 2.1 m
3 ft 914 mm 10 ft 3.0 m
4 ft 1.2 m 13 4.0 m
5 ft 1.5 m 16 4.9 m
6 ft 1.8 m 17 5.2 m
7 ft 2.1m 22 6.7 m
H1+ H2 = 22 ft (6.7 m) Max.
V1+ V2 + H1+ H2 = 62 ft (18.9 m)
Max.
Figure 5.6
V1= 50 FT MAX. (15.2 M)
NOTE: Onverticalventing config-
urations install the flue restrictor
foundintheappliancemanualbag.
Follow flue restrictor instructions
in Section 7D.
Straight Up Vertical Venting
2. Top Vent - Vertical Termination
CAP
V
1
NOTE: Must have a minimum
verticalventbefore attachinga
90oelbowtotheunit.Seechart.
Minimal Vertical Vent
Model ft. mm
Cerona-36 0.5 152
Cerona-42 1305

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06 17
Cerona-36 ONLY >
Cerona-36 ONLY >
2. Top Vent - Vertical Termination - (continued)
Three Elbows V1 + V2 Minimum H1+ H2Maximum
0.5 ft 152 mm 3 ft 914 mm
1 ft 305 mm 4 ft 1.2 m
2 ft 610 mm 7 ft 2.1 m
3 ft 914 mm 10 ft 3.0 m
4 ft 1.2 m 13 ft 4.0 m
5 ft 1.5 m 16 ft 4.9 m
6 ft 1.8 m 19 ft 5.8 m
7 ft 2.1 m 22 ft 6.7 m
H1+ H2 = 22 ft (6.7 m) Max.
V1+ V2 + H1+ H2 = 62 ft (18.9 m) Max.
Figure 5.8
Figure 5.7
Two Elbows V1+ V2 Minimum H1 Maximum
0.5 ft 152 mm 2 ft 610 mm
1 ft 305 mm 2 ft 610 mm
2 ft 610 mm 5 ft 1.5 m
3 ft 914 mm 8 ft 2.4 m
4 ft 1.2 m 11 ft 3.4 m
5 ft 1.5 m 14 ft 4.3 m
6 ft 1.8 m 17 ft 5.2 m
7 ft 2.1 m 20 ft 6.1 m
8 ft 2.4 m 23 ft 7.0 m
H1= 23 ft (7.0 m) Max.
V1+ V2+ H1= 63 ft (19.2 m) Max.
V
1
H 1
V 2
H1
V
2
H2
V
1
INSTALLED
HORIZONTALLY
NOTE: Must have a minimum
verticalventbefore attachinga
90oelbowtotheunit.Seechart.
Minimal Vertical Vent
Model ft. mm
Cerona-36 0.5 152
Cerona-42 1305
NOTE: Must have a minimum
verticalventbefore attachinga
90oelbowto theunit.Seechart.
Minimal Vertical Vent
Model ft. mm
Cerona-36 0.5 152
Cerona-42 1305

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
18
A. Pipe Clearances to Combustibles
Vent Clearances and Framing
6
Combustible Wall Penetration
Frameahole inacombustiblewall for aninteriorwall shield
firestop, (Figure 6.2) whenever a wall is penetrated. Use
samesizeframingmaterialsasthoseusedinthewallcon-
struction.Thewall shieldfirestopmaintainsminimum clear-
ancesand prevents cold air infiltration.
Non-Combustible Wall Penetration
Ifthehole being penetratedissurroundedby noncombusti-
ble materials such as concrete, a hole with diameter one
inch greater than the pipe is acceptable.
Fire Risk.
Explosion Risk.
Maintain vent clearance to combustibles
as specified.
WARNING
• Do not pack air space with insulation or
other materials.
Failure to keep insulation or other materials
away from vent pipe may cause fire.
B. Wall Penetration Framing
Figure 6.1 Pipe Clearances
1 in. CLEARANCE
AROUND VERTICAL
SECTIONS
3 in. TOP
CLEARANCE
1 in. SIDE AND
BOTTOM CLEARANCE
Figure 6.2 Exterior Wall Hole
Figure 6.2 Horizontal Venting Clearances to
Combustible Materials
NOTE: Slope
not required.
Shows center of 10 inch x 12 inch 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.
WALL
HEAT
SHIELD HEAT
SHIELD
3 in. TOP
CLEARANCE
WALL
SHIELD
FIRESTOP
1 in. CLEARANCE
BOTTOM & SIDES
A
B
AB
Cerona-36 in. 61-1/2 60-1/2
mm 1562 1537
Cerona-42 in. 72 71
mm 1829 1803

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06 19
C. Vertical Penetration Framing
Installing the Ceiling Firestop
• Framean opening10inchesby10inch-
es whenever the vent system pene-
trates a ceiling/floor (see Figure 6.3).
• Frametheareawiththesamesizedlum-
ber as used in ceiling/floor joist.
• Wheninstalling atopvent verticaltermi-
nation appliance the hole should be di-
rectly above the appliance, unless the
flueisoffset.
• Donotpackinsulationaround the vent.
Insulation must be kept away from the
pipe.
Figure 6.3
ATTIC
ABOVE
A
B
WARNING
Fire Hazard
Keep loose materials or
blown insulation from touch-
ing the vent pipe.
InstallingAttic Shield
Note: An additional ceiling firestop is not
required if attic shield is used.
• Frame opening for attic shield.
• Attic shield may be installed above or
belowceiling(seeFigure6.4).
• Secure with three fasteners on each
side.
• Fold tabs at top of attic shield in toward
vent pipe. Tabs must keep vent pipe
centered within shield.
• Field construct additional shield height
if insulation is deeper than height of at-
tic shield.
Figure 6.4 Installing the Attic Shield
•Nationalbuilding codesrecommend us-
ing attic shield to keep loose materials/
blown insulation from contacting vent.
•Hearth & Home Technologies requires
the use of an attic shield.
A B
10 in. 10 in.
DVP
PIPE
3 FASTENERS
PER SIDE
BEND TABS IN
AROUND PIPE
ATTIC SHIELD INSTALLED
BELOW CEILIN
G
ATTIC SHIELD INSTALLED
ABOVE CEILING

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
20
Appliance Preparation
7
A. Removing Non-combustible Facing
MaterialAssembly
The non-combustible assembly is located on the back of
appliance(seeFigure7.1).
Figure 7.1 Non-Combustible Facing Material Assembly
• Holdnon-combustible pieces in place.
• Removeand savetwo screwsfrom upper brackets(see
Figure7.1).
• Removenon-combustiblepieces.
• Removeand savethree screwsfromlowerbracket (see
Figure7.1).
• Discard brackets.
• Replace screws in holes where these pieces were at-
tachedtoappliance.
Handle with care.
•Non-combustible material may be damaged if dropped.
CAUTION
Remove screws
from upper
bracket.
Lower
Bracket