Heat & Glo Heat & Glo TIARAII-BK-B User manual

TIARA II-B
DIRECT VENT ROOM HEATER
O-T
O-T L
Tested and
Listed by
Portland
Oregon USA
OMNI-Test Laboratories, Inc.
CUS
Models:
TIARAII-BK-B
TIARAII-BR-B
TIARAII-CES
Owner’s Manual
Installation and Operation
DO NOT DISCARD THIS MANUAL
CAUTION
• Important operating and
maintenance instructions
included.
• Leave this manual with
party responsible for use
and operation.
• Read, understand and
follow these instructions
for safe installation and
operation.
• Do not store or use gasoline or other flam-
mablevaporsandliquidsinthevicinityofthis
or any other appliance.
• What to do if you smell gas
- Do not try to light any appliance.
Do not touch any electrical switch. Do not
use any phone in your building.
- Immediately call your gas supplier from a
neighbor’sphone.Followthegas supplier’s
instructions.
- If you cannot reach your gas supplier, call
the fire department.
• Installation and service must be performed
by a qualified installer, service agency, or the
gas supplier.
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury, or death.
Installation and service of this appliance should be
performed by qualified personnel. Hearth & Home
TechnologiessuggestsNFI certified orfactory-trained
professionals, or technicians supervised by an NFI
certified professional.
DO NOT
DISCARD
This appliance may be installed as an OEM installation in
manufactured home (USA only) or mobile home and must be
installedin accordance withthe manufacturer's instructions and
the manufactured home construction and safety standard, Title
24CFR, Part 3280 or Standardfor Installationin Mobile Homes,
CAN/CSA Z240MH.
This appliance is only for use with the type(s) of gas indicated on
the rating plate.
In the Commonwealth of Massachusetts:
• installationmust be performedby a licensedplumber or gas
fitter.
See Table of Contents for additional Commonwealth of Mas-
sachusetts requirements.
WARNING
• Keep children away
• CAREFULLY SUPERVISE children in the same room as
appliance
• Alert children and adults to hazards of high temperatures
High temperatures may ignite clothing or other
flammable materials.
• Keep clothing, furniture, draperies and other combustibles
away.
HOT GLASS WILL CAUSE
BURNS.
DO NOT TOUCH GLASS
UNTIL COOLED.
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11

MINIMUM CLEARANCES TO COMBUSTIBLES / ESPACE MINIMUM AUX COMBUSTIBLES
Minimum clearances required from combustible construction for all appliance surfaces. / Espaces minimum exigés
de la construction combustible aux surfaces de l’appareil.
Date of Manufacture / Date du Manufacturier
2010 2011 2012 Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecJan
DO NOT REMOVE THIS LABEL / NE PAS ENLEVER L’ÉTIQUETTE Made in U.S.A. / Fait Aux États-Unis 7010-150
A. Side of stove top to side wall 8-1/2" (216mm) D u côté du poêle au
côté du mur
B. Rear of stove to back wall 1/4" (6mm) Le contrôle arrière au mur arrière
C. Corner of stove top to side wall 3/8" (9mm) Du coin du dessus du po êle au mur de côté
D. Minimum Alcove Height 54" (1372mm) Ha uteur
minimum du plancher au plafond
E. Maximum Alcove Depth 36" (914mm) P rofondeur maximum de l'alcove
F. Minimum Alcove Width 40" (1016mm) Largeur minimum
de l'alcove
G. Stove to Ceiling Clearance 27" (686mm) Le po êle au dégagement de plafond
Right and left sides of appliance are determined when facing the front of appliance. / Les côté
gauches et droits de l'appareil sont d éterninés lorsque vous êtes en face de l'appareil.
G-Alcove
A
F
de l'alcôve
90° off top up & out ceiling
clearance 90° du sommet en
haut et hors le degagement
de plafond
A
B
E
AA
G
D
H
"A" measurement is from stove top,
not side / "A"mesure est du
sommet de poêle, pas le
HEARTH: A non-combustible hearth pad is not required. However, the floor beneath the stove must be stable, level, and
strong enough to support the stove without a tipping hazard. / CHEMINÉE: Un coussinet non-combustible de cheminée
n’est pas exigé. Cependant, le plancher en dessous du poêle doit être droit, à niveau et assez fort pour supporter
le poêle sans le hasard de basculer.
C
C
0-2000 FT’ 0-2000FT
Input Rate on “HI” (BTU/Hr) 31,000 30,000 Puissance Évaluée à “HI” (BTU/Hr)
Input Rate on “LO” (BTU/Hr) 22,000 23,000 Puissance Évaluée à “LO” (BTU/Hr)
Maximum Output (BTU/Hr)** 20,943 21,519 Puissance Maximum (BTU/Hr**
Main Burner Orifice .106 .063 Orifice du Brûleur Principal
Minimum Inlet Pressure (Inches W.C.) 4.5” 11” Pression Minimum de la Valve (pouces W.C.)
Maximum Inlet Pressure (Inches W.C.) 7.0” 14” Pression Maximum de la Valve (pouces W.C.)
M anifold Pressure on “HI” (Inches W.C.) 3.5” 10” Pression du Collecteur d’ Échappement à “HI” (pouces W.C.)
**Max Venting, Blower On **Ventilation Maximum, Ventilateur Allumé
For use with Propane
Usage Au Gaz Propane
For use with Natural Gas
Usage Au Gaz Naturel
APPROVED FOR CANADA AND USA TO: ANSI Z21.88-2002 / CSA 2.33-02 Vented Gas Fireplace Heaters, and applicable sections of UL307b Gas Burning HeatingAppliances for Manufactured Homes and Recreational
Vehicles, CAN/CGA 2.17-M91 Gas Fired Appliances for use at High Altitudes. This appliance is manufactured for operation with Natural Gas. For conversion to propane Manufacturer's instructions must be used. This
appliance may be installed in a bedroom or bedsitting room; in Canada remote thermostat installation is required.
APPROUVÉ-POUR LE CANADA ET LES ÉTATS-UNIS: ANSI-Z21.88-2002 / CSA 2.33-02 Fournaises au Gaz avec Ventilation, et les sections applicable de UL 307b Appareils de Chauffage Au Gaz our les Maisons Mobiles et les
Vehicules Motoriss, CAN/CGA 2.17-M91 Gas Fired Appliances for use at High Altitudes. Cet appareil est manufactur pour l'operation avec le Gaz Naturel. Pour une conversion au gaz propane les pices du Manufacturier et ses
instructions doivent tre utilises. Cet appareil peut tre utilis dans une chambre à coucher ou salle de sjour, au Canada, l'installation d'un thermostat à distance est exige.
FAN TYPE VENTED CIRCULATOR / VENTILATEUR CIRCULATOIRE
Optional Blower Kit #GFK-160A / Le Souifleur Optionel Kit #GFK-160A
120Vac, 60Hz., 12 Amperes or less (ou moins)
Route power cord away from unit. / Éloignez le fil électrique de l'appareil. Do not route
power cord under or over stove. / Ne pas faire passer le fil électrique au dessus ou en dessous de l'appareil.
SAMPLE
S A M P L E
VENTED GAS FIREPLACE HEATER
NOT FOR USE WITH SOLID FUEL
Serial No / Numéro du
Report No. / Rapport Numéro
061-S-43b-5 FOURNAISE AU GAZ AVEC VENTILATION
NE PAS UTILISER AVEC LE COMBUSTIBLE SOLIDE
MODEL / MODÈLE: TIARA II (B)
A division of Hearth & Home Technologies Inc.
20802 Kensington Boulevard, Lakeville, MN 55044
007
O-T
O-T L
Tested and
Listed by
Portland
Oregon USA
OMNI-Test Laboratories, Inc.
CUS
2
Read this manual before installing or operating this appliance.
Please retain this owner's manual for future reference.
Congratulations
Congratulations on selecting a Heat & Glo gas appliance -
anelegantandcleanalternative towoodburningappliances.
TheHeat&Glogasapplianceyou 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'sManualshouldberetainedforfuturereference.
We suggest that you keep it with your other important
documents and product manuals.
Your new Heat & Glo gas appliance will give you years of
durable use and trouble-free enjoyment. Welcome to the
Heat & Glo family of gas appliance products!
SAMPLE OF RATINGS LABEL
LOCATION: Hang tag attached to rear of appliance
Serial No.
Model Name
Test Lab &
Report No.
Manufactured
Date
Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11

3
- TABLE OF CONTENTS -
Section 1: Listing and Code Approvals
A. Appliance Certifications ......................4
B. Glass Specifications............................4
C. Specifications......................................4
D. High Altitude Installations....................4
E. Non-Combustible Materials.................4
F. Combustible Materials ........................4
G. Requirements for the
Commonwealth of Massachusetts......5
Section 2: Getting Started
A. Design & Installation
Considerations....................................6
B. Tools and Supplies Needed................6
C. Inspect Appliance & Components.......6
Section 3: Appliance Location & Clearances
A. Selecting Appliance Location..............7
B. Clearances to Combustibles ..............7
Section 4: Termination Locations
A. Vent Termination Minimum
Clearances..........................................8
Section 5: Vent Information
A. Venting Components..........................10
B. Use of Elbows.....................................10
C. Measuring Standards..........................10
D. How to Use the Vent Graph................11
E. Venting Guidelines..............................11
F. Horizontal Termination........................12
G. Vertical Termination............................14
Section 6: Gas Information
A. Fuel Conversions................................22
B. Gas Pressures....................................24
C. Gas Connection.. ................................24
Section 7: Electrical Information
A. Recommendation for Wire..................26
B. Connecting to the Appliance...............26
C. Standing Pilot Ignition System
Wiring..................................................26
D. Ignition Module Access and
Battery Replacement ..........................27
Section 8: Appliance Setup
A. Remove Shipping Materials................28
B. Top to Rear Conversion......................28
C. Damper Adjustment ............................29
D. Shutter Adjustment .............................29
E. Leg Leveling System...........................30
F. Brick Installation .................................30
G. Positioning the Logs ...........................31
H. Mineral Wool.......................................31
I. Accessories.........................................31
J. Optional Blower...................................31
K. Glass Replacement.............................33
L. Warming Shelves Installation..............34
Section 9: Operating Instructions
A. Before Lighting Appliance...................35
B. Controls...............................................35
C. Lighting Appliance...............................36
D. After Appliance is Lit ...........................37
E. Frequently Asked Questions...............37
Section 10: Troubleshooting...............................38
Section 11: Maintaining & Servicing Appliance
A. Maintenance Tasks.............................41
Section 12: Reference Materials
A. Appliance Dimension Diagram ...........42
B. Vent Components Diagram ................43
C. Vent Components List........................44
D. Service Parts & Accessories...............46
E. Limited Lifetime Warranty...................51
F. Contact Information ............................53
= Contains updated information.
Safety Alert Key:
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Indicates practices which may cause damage to the fireplace or to property.
Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11




4Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
1Listing and Code Approvals
The product is listed to ANSI standards for “Vented Gas
Appliance Heaters” and applicable sections of “Gas Burning
Heating Appliances for Manufactured Homes and Recre-
ational Vehicles” and "Gas Fired Appliances for use at High
Altitudes".
A. Appliance Certification
B. Glass Specifications
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.
D. High Altitude Installations
C. Specifications
This appliance is equipped with 5mm ceramic glass behind
the curved glass. Replace glass only with 5mm ceramic
glass. Please contact your dealer for replacement glass.
Manufactured Home or Mobile Home installation may occur
only after the home is site located and must conform with
the Manufactured Home Construction and Safety Standard,
Title 24 CFR, Part 3280, or, when such a standard is
not applicable, the Standard for Manufactured Home
Installations, ANSI/NCSBCS A225.1, or Standard for Gas
Equipped Recreational Vehicles and Mobile Housing, CSA
Z240.4.
When installed, the appliance must be electrically grounded
in accordance with local codes or, in the absence of local
codes, with the National Electrical Code, ANSI/NFPA 70, or
the Canadian Electrical Code, CSA C22.1.
*Maximum Vent Blower On
**Canada Only
MODEL Tiara II B
LABORATORY OMNI-Test Laboratories, Inc.
061-S-44b-5
TYPE Vented Gas Fireplace Heater
STANDARD ANSI Z21.88-2002 ּCSA 2.33-2002
UL307b ּCAN/CBA 2.17-M91
Model
(US or Canada)
Maximum
Input
BTU
Minimum
Input
BTU
Orifice
Size *Steady State
Efficiency
%
**P.4
%
Tiara II B
(NG)
38,500 27,000 .120 81.36 60.97
Tiara II B
(LP)
39,000 30,500 .073 83.62 64.14
Materials that are reported as passing ASTM E 136,
Standard Test Method for Behavior of Materials in a Vertical
Tube Furnace at 750°C, shall be considered non-combustible
materials.
Materials made of or surfaced with wood, compressed
paper, plant fibers, plastics, or other materials that can ignite
andburn, whetherflameproofed ornot, or whether plastered
or unplastered shall be considered combustible materials.
E. Non-Combustible Materials
F. Combustible Materials
WARNING
DoNOTusethisappliance if anyparthas beenunderwater.
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.
Intertek listed gas appliances are tested and approved
without requiring changes for elevations from 0 to 2000 feet
(0 to 609m) in the U.S.A. and 0 to 4500 feet (0 to 1372m)
in Canada.
When installing this appliance at an elevation above 2000
feet (609m), it may be necessary to decrease the input
rating by changing the existing burner orifice to a smaller
size. Input rate should be reduced by 4% for each 1000 feet
(305m) above a 2000 foot (609m) elevation in the U.S.A. If
the heating 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
(1372m) in Canada, check with local authorities.

5Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
NOTE: The following requirements reference various
Massachusetts and national codes not contained in this
document.
For all side wall horizontally vented gas fueled equipment
installedin every dwelling,building or structureused in whole
or in part for residential purposes, including those owned or
operated by the Commonwealth and where the side wall
exhaust vent termination is less than seven (7) feet above
finished grade in the area of the venting, including but not
limited to decks and porches, the following requirements
shall be satisfied:
Installation of Carbon Monoxide Detectors
At the time of installation of the side wall horizontal vented
gasfueledequipment, the installingplumber or gasfittershall
observe that a hard wired carbon monoxide detector with an
alarmand battery back-upis installed onthe floor level where
thegas equipment is to be installed. In addition, the installing
plumber or gas fitter shall observe that a battery operated
or hard wired carbon monoxide detector with an alarm is
installed on each additional level of the dwelling, building or
structureserved by theside wall horizontalvented gas fueled
equipment.It shall be the responsibilityof theproperty owner
to secure the services of qualified licensed professionals for
the installation of hard wired carbon monoxide detectors.
In the event that the side wall horizontally vented gas fueled
equipment is installed in a crawl space or an attic, the hard
wiredcarbonmonoxide detector withalarm and batteryback-
up may be installed on the next adjacent floor level.
In the event that the requirements of this subdivision can not
bemetatthetimeof completion of installation, theownershall
have a period of thirty (30) days to comply with the above
requirements; provided, however, that during said thirty (30)
dayperiod,abattery operated carbonmonoxidedetectorwith
an alarm shall be installed.
Approved Carbon Monoxide Detectors
Each carbon monoxide detector as required in accordance
with the above provisions shall comply with NFPA 720 and
be ANSI/UL 2034 listed and IAS certified.
Signage
A metal or plastic identification plate shall be permanently
mounted to the exterior of the building at a minimum height
of eight (8) feet above grade directly in line with the exhaust
vent terminal for the horizontally vented gas 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 OBSTRUCTIONS.”
G. Requirements for the Commonwealth of
Massachusetts
Inspection
The state or local gas inspector of the side wall horizontally
vented gas fueled equipment shall not approve the installa-
tion unless, upon inspection, the inspector observes carbon
monoxidedetectors and signage installed in accordance with
the provisions of 248 CMR 5.08(2)(a) 1 through 4.
Exemptions
The following equipment is exempt from 248 CMR 5.08(2)
(a) 1 through 4:
•
•
The equipment listed in Chapter 10 entitled “Equipment
Not Required To Be Vented” in the most current edition of
NFPA 54 as adopted by the Board; and
ProductApproved side wall horizontally vented gas fueled
equipment installed in a room or structure separated from
the dwelling, building or structure used in whole or in part
for residential purposes.
MANUFACTURER REQUIREMENTS
Gas Equipment Venting System Provided
When the manufacturer of Product Approved side wall
horizontally vented gas fueled equipment provides a vent-
ing system design or venting system components with the
equipment, the instructions provided by the manufacturer for
installation of the equipment and the venting system shall
include:
•
•
Detailed instructions for the installation of the venting sys-
tem design or the venting system components; and
A complete parts list for the venting system design or
venting system.
Gas Equipment Venting System NOT Provided
When the manufacturer of a ProductApproved side wall hor-
izontally vented gas fueled equipment does not provide the
parts for venting the flue gases, but identifies “special vent-
ing systems”, the following requirements shall be satisfied by
the manufacturer:
•
•
The referenced “special venting system” instructions shall
be included with the appliance or equipment installation
instructions; and
The “special venting system” shall be Product Approved
by the Board, and the instructions for that system shall
include a parts list and detailed installation instructions.
Acopy of all installation instructions for all ProductApproved
side wall horizontally vented gas fueled equipment, all vent-
ing instructions, all parts lists for venting instructions, and/
or all venting design instructions shall remain with the appli-
ance or equipment at the completion of the installation.
See Gas Connection section for additional Common-
wealth of Massachusetts requirements.

6Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
2Getting Started
Check building codes prior to installation.
• Installation MUST comply with local, regional, state
and national codes and regulations.
• Consultlocalbuilding, fire officialsor authoritieshaving
jurisdiction about restrictions, installation inspection,
and permits.
CAUTION
A . Design & Installation Considerations
B. Tools and Supplies Needed
C. Inspect Appliance & Components
Heat & Glo direct vent gas appliances are designed to oper-
ate with all combustion air drawn from outside of the building
and all exhaust gases expelled to the outside. No additional
air source is required.
When planning an installation, it is necessary to determine
the following information before installing.
Before beginning the installation be sure that the following
tools and building supplies are available. Note: Not all
tools will apply to every installation.
Keep appliance dry.
• Mold or rust may cause odors.
• Water may damage controls.
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.
• Installationand/or useof anycomponent partnot approved
by Hearth & Home Technologies.
Any such action may cause a fire hazard.
WARNING
Hearth & Home Technologies disclaims any
responsibility for, and the warranty will be
voided by, the following actions:
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.
•Where the appliance is to be installed.
• The vent system configuration to be used.
•Gas supply piping.
•Electrical wiring.
•Whether optional accessories - devices such as a
blower, thermostat or remote control - are desired.
•Carefully remove the appliance and components from
the packaging.
•Remove door and set aside on protective surface.
•Remove log set and component pack from firebox.
•Report to your dealer any parts damaged in shipment,
particularly the condition of the glass.
•Read all of the instructions before starting the
installation. Follow these instructions carefully
during the installation to ensure safety and benefit.
Young children should be carefully supervised when
they are in the same room as the appliance. Tod-
dlers, young children and others may be susceptible
to accidental contact burns. A physical barrier is rec-
ommended if there are at risk individuals in the house.
To restrict access to an appliance, install an adjustable
safety gate to keep toddlers, young children and other
at risk individuals out of the room and away from hot
surfaces.
Pliers Hammer
Gloves Framing Square
Voltmeter Phillips Screwdriver
Plumb Line Electric Drill / Bits
Level Flat Blade Screwdriver
Manometer Safety Glasses
Allen Wrench Set Wrenches
Tape Measure Ratchets / Sockets
1/2 - 3/4 in. Length, #6 or #8 Self-Drilling Screws
Non-corrosive Leak Check Solution or Combustible Gas
Detector
Caulking material (300º F minimum continuous exposure
rating)

7Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
3Appliance Location and Clearances
A. Selecting Appliance Location
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.
When selecting a location for your appliance it is important
toconsiderthe required clearancestowall (see Figure 3.1).
WARNING
Fire Risk
Provide adequate clearance:
• Around air openings
• To combustibles
• For service access
Locate appliance away from traffic areas.
Fire Risk.
•Locate and install appliance to all
clearance specifications in manual.
WARNING
B. Clearances to Combustibles
NOTE: For actual appliance dimensions refer to
Section 12.
A
G
A
A
B
F
E
A
"A" measurement is from
appliance top, not side
C
C
GH
D
90˚ off top up and out ceiling
Model A B C D E F G
H
Top of
pipe Side of pipe Inside Outside
corner
wall vent
Tiara II B Inches 5-1/4 1/4 3/8 54 36 40 31-3/4 3 1 9
Millimeters 133 6 9.5 1372 914 1016 806 76 25 229
NOTE: Flooring beneath appliance may reach 90 degrees
plus room ambient temperature. Check with flooring
manufacturer for maximum temperature allowed on
flooring surfaces.
It is permissible to place the appliance on carpet.
CAUTION
Some carpet materials may be sensitive to radiant heat from the
appliance causing discoloration or odor.
Fire Risk.
Odor Risk.
Tipping Risk
• Install appliance on a stable, level platform/
floor strong enough to support appliance
without tipping.
• USE wood flooring, ceramic tile, brick hearth
or high pressure laminate flooring applied
directly over the sub-flooring material.
WARNING
Figure 3.1


8Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
4Termination Locations
A. Vent Termination Minimum Clearances
Figure 4.2 Staggered Termination Caps
Figure 4.1 Termination Clearances
Figure 4.3 specifies minimum vent heights for various
pitched roofs.
Figure 4.3 Minimum Height from Roof to Lowest Discharge
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.
HORIZONTAL
OVERHANG
VERTICAL
WALL
GAS DIRECT VENT
TERMINATION CAP
12
X
ROOF PITCH
IS X/ 12
LOWEST
DISCHARGE
OPENING
2 FT.
MIN.
20 INCHES MIN.
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
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
* 3 foot minimum in snow regions
Measure vertical clearances from this surface.
Measure horizontal clearances from this surface.
(See Figure 4.4 for specific clearances.)
Opening
Gas, Wood or Fuel Oil
Termination Cap
B
Gas
Termination
Cap **
A *
*If using decorative cap cover(s), this distance may need to be
increased. Refer to the installation instructions supplied with the
decorative cap cover.
**
AB
6 in. (minimum) up to 20 in.
152 mm/508 mm 18 in. minimum 457 mm
20 in. and over 0 in. minimum
In a staggered installation with both gas and wood or fuel oil
terminations, the wood or fuel oil termination cap must be
higher than the gas termination cap.

9Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
Figure 4.4
V= VENT TERMINAL X= AIR SUPPLY INLET = AREA WHERE TERMINAL IS NOT PERMITTED
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-
manently closed 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/regulatorassemblywithin3
feet (90cm) horizontally from the
center-lineof the regulator
I=3ft. ....... 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
sidewalkor a paveddriveway
locatedonpublic property
M*** = 18 inches .............. clearance under veranda,
porch, deck,balcony or over-
hang
42 inches .............. vinyl
(See Note 1)
(See Note 1)
S = 6 inches ................. clearance from sides of
electrical service
T = 12 inches................ clearance above electrical
service
(See Note 3)
(See Note 3)
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
QMIN RMAX
1cap 3feet 2xQACTUAL
2caps 6feet 1xQACTUAL
3caps 9feet 2/3xQACTUAL
4caps 12feet 1/2xQACTUAL
N = 6 inches................. non-vinyl sidewalls
12 inches ............... vinyl sidewalls
P=8ft.
Alcove Applications
(See Note 2)
Electrical
Service
V
S
VS
V
T
D*
V
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
RMAX = (2 / # termination caps) x QACTUAL
QMIN = # termination caps X 3
................
** a vent shall not terminate diretly 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, used of
a listed cap is suggested (See vents components pages).
NOTE 2: Termination in an alcove space (spaces only open on one
side and wit an overhand) are permitted with the dimensions specified
for vinyl or non-vinyl siding and soffits.
NOTE 3: Location of the vent termination must not interfere with
access to the electrical service.
NOTE 4: Local codes or regulations may require different clearances.
NOTE 5: Termination caps may be hot. Consider their proximity to
doors or other traffic areas.
NOTE 6: 1) There must be at least 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 terminatin cap.
WARNING: In the USA: Vent system termination is NOT permitted in
screened porches. You must follow side wall, overhang and ground
clearances as slated in the instructions.
In Canada: Vent system terminatin is NOT permitted in screed porces
Venty system termination is permitted in porch areas with two or more
sides open. You must follow side wall, overhang and ground clearances
as slated in the instructions.
Hearth & Home Technologies assumes no responsibility for the improper
performance of the appliance when the venting system does not meet
these requirements.
CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL
SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE
INSTALLED.

10 Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
5Vent Information
A. Venting Components B. Use of Elbows
In order to comply with applicable codes and product
warranties, use only following venting components:
• Hearth & Home Technologies (HHT)
• Simpson Dura-Vent
• Selkirk Direct-Temp
• Amerivent Direct
• Security Secure Vent
DO NOT USE FIELD-FABRICATED VENTING
COMPONENTS. Refer to the venting manufacturer’s
instructions.
This product is approved to be vented either horizontally,
through the side wall or vertically through the roof. You may
vent through a Class A or masonry chimney if an approved
adapter is used.
Thisapplianceisa direct vent heater. Allcombustionairmust
come directly from the outside of the building. The vent pipe
for this unit consists of an inner and an outer pipe. The inner
pipecarries the appliance exhaust outof thesystem, and the
outer pipe brings fresh combustion air into the appliance.
Fire Risk.
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
Diagonal runs have both vertical and horizontal vent aspects
whencalculatingtheeffects.Use the rise for theverticalaspect
and the run for the horizontal aspect. (See Figure 5.1.)
Two 45° elbows may be used in place of one 90° elbow. On
45° runs, one foot of diagonal is equal to 8-1/2 in. (216mm)
horizontal run and 8-1/2 in. (216mm) vertical run. A length of
straightpipe is allowedbetween two elbows.(See Figure 5.1.)
Vertical
Horizontal
12 in.
8-1/2 in.
8-1/2 in.
Vertical and horizontal measurements were made using the
following standards.
C. Measuring Standards
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.
Figure 5.1
• Pipe measurements are from center line to center line.
• Horizontal terminations are measured to the outside of
the mounting surface (flange of termination cap). See
Figure 4.1 on page 9.
• Vertical terminations are measured to the top of the last
pipe before termination cap.
• Horizontal pipe installed level with 1/4 in. rise.
•A round support box/wall thimble or heat shield is
required when the venting passes through a combus-
tible wall.
•A support box or ceiling firestop is required when the
venting passes through a ceiling.
• Roof flashing and a storm collar are required when
venting passes through the roof.
•Follow instructions provided with the venting for instal-
lation of these items.

11Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
D. How to Use the Vent Graph E. Venting Guidelines
1. Measure the distance from the top of appliance to the
center of the 90° elbow. On the graph below, draw a
horizontal line from that measurement on the vertical axis
across until it intersects with the slanted line.
2. From the point of this intersection, draw a vertical line to
the bottom of the graph.
3. The point at which this line meets the bottom line of the
graph is the maximum length of the horizontal run.
Example 1: If the vertical dimension from the center line of
the flue vent to the center of the 90° elbow is 7 ft. (2m), the
horizontal run to the outer wall flange must not exceed 16 ft.
(5m).
.
Example 2: If the vertical dimension from the center line of the
flue vent is 21 ft. (6m), the horizontal run to the outer wall flange
must not exceed 12 ft. 10 in. (4m).
4. Each 90° elbow is equivalent to 3 ft. (914mm) of vent pipe
and each 45° elbow is equivalent to 1 ft. (305mm) of vent
pipe, and must be subtracted from the vent pipe run. A
single horizontal to vertical 90° elbow is already calculated
into the allowable 20 ft. (6m) run. Each additional 90°
elbow reduces the maximum horizontal distance by 3 ft.
(914mm).
Example: The use of 3 elbows would reduce the allowable
horizontal run to 9 ft. (3 -1 = 2 elbows x 3 ft. = 6 ft.; 20 ft.
max. - 6 ft. = 14 ft. max.).
• The maximum horizontal vent run is 20 ft. (6m) when the
vertical vent rise is 10 ft. (3m).
• The minimum horizontal vent run is 6 in. (152mm).
• Horizontal sections require a 1/4 in. (6mm) rise for every 12
in. (305 mm) of horizontal travel.
• Exterior Vent Diameter = 6-5/8 in. (168mm); Inner Vent
Diameter = 4 in. (102mm).
• Horizontal sections require non-combustible support every
3 ft. (914mm), e.g. wall straps.
• For any vertical termination a minimum of 6 ft. (2m) vertical
must be used.
Figure 5.2
Example 1
Example 2
2' 4' 6 ' 8' 10' 12' 14' 15' 16' 17' 18' 19' 20'
2'
4'
6'
8'
10'
12
'
14'
16'
18'
20'
22'
24'
26'
28'
30'
32'
34'
35'
36'
37'
38'
39'
40'
Damper position
more CLOSED in
this area
C
L
40 ft. (12m)
Maximum Vertical
VERTICAL DISTANCE
FROM APPLIANCE TO
90
° ELBOW
6 in. (152mm) Minimum
Vertical Termination
For rear vent or top of
appliance for top vent
C
L
6 in. (152mm) Minimum starter pipe
3 ft. (914mm) Maximum Horizontal run with no
vertical pipe and with 1/4 in (6mm) rise per foot.
Must use Snorkel cap.
No damper
in this area
Damper position
more OPEN in
this area
Part: SLK-991DA
Part: SLK-011TRD
EXCEPTIONS FOR HORIZONTAL INSTALLATIONS:
*When installing in a rear vent configuration with no
vertical rise, a Snorkel Kit must be used. Refer to venting
components.
*The maximum horizontal vent run is 3 ft. (914mm).
*The maximum horizontal vent run with a 45° elbow is 2 ft.
(609mm).
*The minimum horizontal vent run is 6 in. (152mm).
INDIVIDUAL INSTALLATIONS MAY VARY. PERCENTAGE
CLOSED BASED ON FULL RANGE OF DAMPER TRAVEL.
NOTE: IF YOUR INSTALLATION FALLS WITHINASHADED
AREAONTHEGRAPH,THEDAMPERMUSTBEUSED.*SEE
INFORMATION ON DAMPER ADJUSTMENT ON PAGE 31.
*In the Commonwealth of Massachusetts, the word damper
shall be replaced with the words flue restrictor.

12 Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
Step 1.
Determine the desired location of the appliance. Check to
ensure that wall studs or roof rafters are not in the way when
the venting system is being planned. If this is the case, you
may want to adjust the location of the appliance.
F. Horizontal Termination
Figure 5.3
Step 2.
Direct vent pipe is designed with a locking connection. To
connect the venting system to the appliance flue outlet, a
twist-lock adapter is built into the appliance at the factory.
Wall thickness may vary. Remember to include wall
thickness in minimum clearances when figuring venting
lengths for your installation needs.
Note: Female ends of direct vent pipe/elbows are
designed to slide straight onto the male ends of adjacent
pipes by orienting the pipe indentations so they match and
slide into the entry slots on the male ends, see Figure 5.4.
Push the pipe sections completely together, then twist-lock
one section clockwise approximately one-quarter turn, until
the two sections are fully locked. The female locking lugs
may not be visible from the outside. They may be located
by examining the inside of the female ends.
Type A - Up & Out Installation
Type C - 45° Elbow in Corner Installation
Type B - Straight Out Installation
45° Elbow
3/8 in. (10mm) Clearance from
stove corner to combustible wall.
3/8 in. (10mm)
Clearance from
stove corner to
combustible wall
(for valve access
on side).
Wall Thimble/Heat Shield
WALL THIMBLE/
HEAT SHIELD
WALL THIMBLE COVER
PIPE LENGTH
PIPE LENGTH
TERMINATION CAP
CENTER LINE
90° ELBOW
CENTER
LINE
WALL THIMBLE COVER
PIPE LENGTH
SNORKEL KIT
WALL STRAP 14 in. (356mm) Wide
WALL THIMBLE / HEAT SHIELD
15-5/8 in.
(397mm)
21 in.
(533mm)
Fire Risk.
Exhaust Fume Risk.
Impaired Performance of Appliance.
WARNING
• Ensure vent components are locked together correctly.
• Pipe may separate if not properly joined.
Female Locking Lugs
Male Locking Lugs
Figure 5.4
Fire Risk.
Explosion Risk.
Combustion Fume Risk.
Use vent run supports per installation instructions.
Connect vent sections per installation instructions.
• Maintain all clearances to combustibles.
• Do NOT allow vent to sag below connection
point to appliance.
• Maintain specified slope (if required).
WARNING
Improper support may allow vent to sag or separate.

13Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
NOTE:
(1) Installation requires a minimum of 6 in. (152mm)
horizontalrunofventwitha1/4in.(6mm)riseruntowards
the termination. Each 1 ft. (305mm) of horizontal venting
must include a 1/4 in. (6mm) rise. Never allow the vent
to run downward. This could cause high temperatures
and may present the possibility of a fire.
(2) The location of the horizontal vent termination on an
exterior wall must meet all local and national building
codes, and must not be easily blocked or obstructed,
see Figure 4.4 on page 10.
(3) For installations requiring a vertical rise on the exterior
of the building, a snorkel kit is available with a 14 in.
(356mm) and a 36 in. (914mm) tall snorkel termination
cap. Follow the same installation procedures as used
for standard horizontal terminations. If the snorkel
terminationmustbeinstalledbelowgrade(i.e.basement
application), proper drainage must be provided to
prevent water from entering the snorkel termination. Do
not backfill around snorkel termination.
(4) Vertical clearances through a wall require 2 in. (51mm)
off the top of the venting pipe and 1 in. (25mm) off the
sides and bottom.
HOT
HOT
WOOD
SCREW
WALL THIMBLE
NOTES:
(1) The four wood screws provided should be replaced
with appropriate fasteners for stucco, brick, concrete,
or other types of sidings.
(2) A termination cap with a built-in vinyl standoff is highly
recommended on a building with vinyl siding. The pilot
hole will be 2 in. (51mm) closer to the bottom of the
square than the top. Using a framing square, draw a
14 in. x 14 in. (356mm x 356mm) square around the
pilot hole. See Figure 5.7.
8 in.
(203mm)
7 in.
(178mm)
7 in.
(178mm) 6 in.
(152mm)
Figure 5.6
Figure 5.7
Figure 5.5
CENTER
LINE
CENTER OF
HOLE
WALL
THIMBLE
CENTER
LINE
Step 3.
For installations using a round support box/wall thimble
(check pipe manufacturer's instructions), mark the wall for
a 10 in. x 10 in. (254mm x 254mm) square hole. The
center of the square hole should line up with the center line
of the horizontal pipe, as shown in Figure 5.5. Cut and
frame the hole in the exterior wall where the vent will be
terminated. If the wall being penetrated is constructed of
non-combustible material, i.e. masonry block or concrete,
a 7 in. (178mm) diameter hole is acceptable.
Step 4.
Position the horizontal termination cap in the center of the 10
in. x 10 in. (254mm x 254mm) square hole and run a bead
of non-hardening mastic around its outside edges, so as to
make a seal between it and the wall, attach termination cap
to the exterior wall with the four wood screws provided. The
arrow on the vent cap should be pointing up (Figure 5.6).
(NOTE: Some termination caps may cause the vent
pipe to be off center on flashing.). Ensure that proper
clearances to combustible materials are maintained. If
you are not using an approved termination cap with
a built-in standoff on a building with vinyl siding, a
vinyl siding standoff should be installed between the
termination cap and the exterior wall (Figure 5.8, on
the next page). Follow manufacturer’s instructions for
attaching the vinyl siding standoff to the horizontal
termination cap. The vinyl siding standoff prevents
excessive heat from possibly melting the vinyl siding
material. Remove siding from the area where the
standoff will be located.
WARNING ! The vent terminal cap shall not be recessed
into a wall or siding.

14 Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
Step 5.
Place the wall thimble cover over the pipe assembly and
slide the appliance and vent assembly towards the wall,
carefully inserting the vent pipe into the vent termination
cap assembly. It is important that the vent pipe extend
into the vent termination cap a sufficient distance so as
to result in a minimum pipe overlap of 1-1/4 in. (32mm).
Secure the connection between the vent pipe and the
vent termination cap by attaching the two sheet metal
strips extending from the vent termination cap assembly
into the outer wall of the vent pipe. Use the two sheet
metal screws provided to connect the strips to the pipe
section (Figure 5.9).
Fold Strap Here
Wall Thimble Cover/Ceiling
Firestop as Required by Local
Jurisdiction
1/4 in. (6mm)
Strap
Sheet Metal Screw
Wall Thimble
Figure 5.9
WARNING
Do NOT connect a pipe section to a termination cap without
using the telescoping flue section found on the termination cap.
WALL THIMBLE COVER
WALL THIMBLE
Vinyl siding standoff with siding beneath
removed
SCREWS
Bolt horizontal top to vinyl
standoff
SCREWS
Apply sealant to all four sides
VINYL SIDING
Figure 5.8
Fire Risk.
Exhaust Fume Risk.
Impaired Performance of Appliance.
WARNING
• Ensure vent components are locked together correctly.
• Pipe may separate if not properly joined.
Note: The attachment from the vent pipe to the vent
termination cap must be sealed with silicone. Termination
caps shall not be recessed into a wall or siding.
Burn Risk.
•Local codes may require installation of a
cap shield to prevent anything or anyone
from touching the hot cap.
WARNING
Step 1.
Check the installation instructions for required 1 in. (25mm)
clearances (air space) to combustibles when passing
through ceilings, walls, roofs, enclosures, attic rafters, or
other nearby combustible surfaces. See page 17, Figure
5.15. Checktheinstructionsbelowformaximumverticalrise
of the venting system, and any maximum horizontal offset
limitations. All offsets must fall within the set parameters of
the vent graph (Figure 5.2) located on page 12.
NOTE: Maximum vertical rise allowable is 35 ft. (11m),
Figure 5.11.
NOTE: Maximum number of 45° elbows permitted for
a vertical installation is eight, provided their installation
does not decrease maximum allowable horizontal run (as
specified by vent graph, on page 12).
G. Vertical Termination
1. Direct Vent Pipe
Figure 5.10
VERTICAL
TERMINATION
CAP
STORM
COLLAR
FLASHING
FIRESTOP
PIPE
LENGTH
SUPPORT
BOX

15Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
Plumber’s Tape
connected to
Wall Strap
Wall Strap
Two 45˚ Elbows
Step 2.
Set the gas appliance in its desired location. Drop a plumb
bob down from the ceiling to the position of the appliance
flue exit, and mark the location where the vent will penetrate
the ceiling. Drill a small hole at this point. Next, drop a
plumb bob from the roof to the hole previously drilled in the
ceiling, and mark the spot where the vent will penetrate the
roof. Determine if ceiling joists, roof rafters, or other framing
will obstruct the venting system. You may wish to relocate
the appliance, or to offset, as shown in Figure 5.12 to avoid
cutting loadbearing members.
Figure 5.11
Figure 5.12
35 ft. (11m)
MAXIMUM
Fire Risk.
Explosion Risk.
Maintain vent clearance to combustibles as speci-
fied.
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.
Step 4.
Assemble the desired lengths of pipe and elbows necessary
to reach from the appliance up through the round support
box. Ensure that all pipe and elbow connections are in their
fully twist-locked position. Assemble as instructed.
Step 5.
Cut a hole in the roof centered on the small drill hole
placed in the roof in Step 2. The hole should be of sufficient
size to meet the minimum requirements for clearance to
combustibles,asspecified. Continuetoassemblelengthsof
pipe and elbows necessary to reach from the ceiling support
box/wall thimble up through the roof line. Galvanized pipe
and elbows may be utilized in the attic, as well as above
the roofline. The galvanized finish is desirable above the
roofline, due to its higher corrosion resistance.
NOTE:
(1) If an offset is necessary in the attic to avoid obstructions,
it is important to support the vent pipe every 3 ft.
(914mm) to avoid excessive stress on the elbows, and
possible separation. Wall straps are available for this
purpose, Figure 5.12, page 16.
(2) Whenever possible, use 45° elbows, instead of 90°
elbows. The 45° elbow offers less restriction to the flow
of flue gases and intake air.
Step 3.
To install the round support box/wall thimble cover in a flat
ceiling, cut a 10 in. (254mm) square hole in the ceiling,
centered on the hole drilled in Step 2. Frame the hole as
shown in Figure 5.13.
Framing
1 - 1/2 in. (38mm) Long
Wood Screws
Ceiling
Joists
Figure 5.13
Step 6.
Slip the flashing over the pipe section(s) protruding through
the roof. Secure the base of the flashing to the roof with
roofing nails. Ensure the roofing material overlaps the top
edge of the flashing as shown in Figure 5.14. Verify that
the chimney is the required height above the roof. See roof
pitch table, Figure 4.3, on page 9.

16 Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
Step 7.
Continue to assemble pipe sections until the height of
the vent (before adding the termination cap) meets the
minimum code requirements as outlined in the current
CAN/CGA-B149 Installation Codes (in Canada), the
National Fuel Gas Code NFPA 54/ANSI Z223.1 (in USA),
or local codes. Note that for steep roof pitches, the vent
height must be increased. See roof pitch table (Figure
4.3, on page 9). In high wind conditions, nearby trees
adjoining rooflines, steep pitched roofs, and other similar
factors can result in poor draft, or down drafting. In these
cases increasing the vent height or switching to the high
wind termination cap may solve this problem.
Shingles overlap on
top edge of flashing
CAP AND STORM
COLLAR NOT SHOWN
FOR CLARITY
Figure 5.14
Step 8.
Slip the storm collar over the pipe, and push it down to
the top of the flashing (Figure 5.15). Use non-hardening
sealant above and below the joint between the storm collar
and the pipe.
Optional High Wind Termination Cap
Secure Flashing with Non-Hardening
Sealant and Roofing Nails
Figure 5.15
Ceiling Firestop
Nails
Minimum 1 in.
(25mm) Clearance
Minimum 1 in.
(25mm) Clearance
Minimum 1 in.
(25mm) Clearance
Minimum 1 in.
(25mm) Clearance
Figure 5.16
Fire Risk.
Explosion Risk.
WARNING
• Anyoccupiedareas above thefirstfloor,including
closets and storage spaces, which the vertical
vent passed through must be enclosed. The
enclosure may be framed and sheetrocked with
standard construction materials; however, refer
to these installation instructions for the minimum
allowable clearance between the outside of the
vent pipe and the combustible surfaces of the
enclosure.Donot fillany of therequired airspace
with insulation.
Step 9.
Twist-lock the vent cap and seal.
Note: For multi-story vertical installations, a ceiling firestop
is required at the second floor, and any subsequent floors
(Figure 5.16). The opening should be framed to 10 in. x
10 in. (254mm x 254mm) inside dimensions, in the same
manner as shown in Figure 5.13, on the previous page.

17Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
2. Cathedral Ceiling
Level
Cathedral Ceiling
Support Box
2 in. (51mm)
Min. below
finished ceiling
Cut hole 1/8 in. (3mm)
greater in size than
pattern of support box
as it is projected onto
roof line
Figure 5.17
Figure 5.18
Step 1.
Follow installation Steps 1 and 2 under vertical installation
section, page 16.
Step 2.
Remove shingles or other roof covering as necessary to
cut the rectangular hole for the support box. Cut the hole
1/8 in. (3mm) larger than the support box outline.
Step 3.
Lower the support box through the hole in the roof until the
bottom of the support box protrudes at least 2 in. (51mm)
below the ceiling (Figure 5.17). Align the support box both
vertically and horizontally with a level. Temporarily tack the
support box in place through the inside walls and into the
roof sheathing.
Step 4.
Using tin snips, cut the support box from the top corners
down to the roof line, and fold the resulting flaps over the
roof sheathing (Figure 5.18). Before nailing it to the roof,
run a bead of non-hardening mastic around the top edges
of the support box to make a seal between it and the roof.
Clean out any combustible material from inside the support
box.
Step 7.
Complete the cathedral ceiling installation by following the
same procedures outlined in steps 7 through 9 for vertical
installations, pages 17-18.
Step 6.
Place the support clamp (provided with the support box)
insidethe support box (at thebottom), andsecure to the pipe
section. The clamp allows the support box to support the
weight of the pipe sections. Continue to add pipe sections
until you are above the roof line.
Cathedral
Ceiling
Trim Collar
Screws
Support
Box
Step 8.
Installthe black trim collar around the outside of the cathedral
ceiling support box (Figure 5.19). The two pieces of the trim
collar slide over one another to allow for easy adjustment
around the support box. Using the six screws provided,
secure the four corners and the overlapping sections of the
trim collar to the ceiling. You may want to predrill the holes for
the overlapped sections for ease of installation.
Figure 5.19
Step 5.
Assemblethedesiredlengthsofpipeandelbowsnecessary
to reach from the appliance up through the round support
box. Ensure that all pipe and elbow connections are in their
fully twist-locked position. Assemble as instructed.

18 Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
3. Class A Metal Chimney
Figure 5.20
TERMINATION
CAP
EXISTING
METAL
CHIMNEY
SYSTEM
TOP
ADAPTOR
FLASHING
4 in. (102mm)
FLEX PIPE
RETRO CONNECTOR
DIRECT VENT PIPE
Top Adapter
Sheet Metal Screws
Flex Pipe
Figure 5.21
Step 1.
Remove existing chimney cap.
Step 2.
Measure the distance from the top of the chimney to the
bottom of the ceiling support box, add 3 in. (76mm) to this
measurement, and cut a section of 4 in. (101mm) flex pipe
to that length (the flex should be fully extended).
Step 3.
Connect the end of the flex pipe section to the underside of
the top adapter, using four sheet metal screws (Figure 5.21).
CAUTION
Ensure that existing chimney is functionally sound and clean.
• Have inspection done by qualified chimney sweep or
professional installer BEFORE converting to direct vent
appliance.
High Wind Termination
Cap
Sheet Metal Screws
Drill Four 1/8 in.
(3mm) Diamater
Holes
Figure 5.22
Figure 5.23
Step 4.
Pass the flex pipe down through the center of the chimney
system,andcenterthetopadapteronthetopofthechimney
pipe. Drill four 1/8 in. (3mm) diameter holes through the
top adapter, and into the chimney top. Ensure that you are
drilling into the metal on the chimney. Twist lock the high
wind termination cap onto the top adapter (Figures 5.22
and 5.23).
Step 5.
Pull the flex pipe down through the ceiling support box,
until it protrudes approximately 3 in. (76mm). Connect the
flex pipe to the retro connector, and attach with sheet metal
screws.
Step 6.
Push the flex pipe back up into the ceiling support box,
center the retro connector, and attach it to the support box
with sheet metal screws.
Step 7.
The connection between the appliance and the retro
connector may be completed with sections of direct vent
pipe.

19Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
4. Existing Masonry Chimney
Type C - Up & Out Installation Type D - Hearth Mount
Figure 5.24
Type A & B Co-Axial to Co-Linear
Chimney Liner
Termination Cap
Co-Axial to
Co-Linear Connector
3 in. (76mm)
Flex Liner
Pipe Length
Optional
Showing two
30 ft.
(9m)Sections
of Flex Liner
Chimney Liner
Termination Cap
Co-Axial to Co-Linear
Connector
30 ft. (9m) of 3 in.
(76mm) Flex Liner
Exhaust Section
Pipe Length
Optional
4 ft. (1m) of 3 in. (76mm)
Flex Liner Air Intake Section
The chimney must be
sealed from the 4 ft. (1m)
section to termination
using a smoke shelf or a
damper*. The seal
should be 6 in. (152mm)
below the end of the 4 ft.
(1m) Air Intake section.
This section of the
chimney must be
sealed
TERMINATION
CAP
FLASHING
4 in. (102mm)
FLEX LINER
TOP ADAPTOR
RETRO
CONNECTOR
90° ELBOW
DIRECT
VENT PIPE
Chimney Liner
Termination Cap
30 ft. (9m) of 3 in. (76mm)
Flex Liner Exhaust Section
4 ft. (1m) of 3 in.
(76mm) Flex Liner
Air Intake Section
Chimney must be sealed
from 4 ft. (1m) section to
termination using a smoke
shelf or a damper*. Seal
should be 6 in. (152mm)
below end of 4 ft. (1m) Air
Intake section.
This section of the
chimney must be sealed
Co-Axial to Co-Linear Connector
Alcove Clearance to
Combustibles must be
maintained
*NOTE: In the Commonwealth of Massachusettes, the word damper shall
be replaced with the words flue restrictor.
*NOTE: In the Commonwealth of Massachusetts, the word damper shall
be replaced with the words flue restrictor.

20 Heat & Glo • TIARAII-B • 7011-148 Rev. D • 12/11
10 in. x 10 in. (254mm x 254mm)
framed opening in wall
Studwall
Masonry
Chimney
Retro Connector
(4) Masonry Bolts
(Not Included)
Wall Thimble Cover
Cut and bend flashing as needed
to fit
Sealant adhesive
Figure 5.25
Figure 5.26
Step 1.
Before cutting any holes, assemble the desired sections
of direct vent pipe to determine the center of the masonry
penetration.
Step 2.
Oncethecenterpointofthepenetrationhasbeendetermined,
cut a 6 in. (152mm) diameter hole in the masonry. If the hole
is too large, the retro connector might not mount properly; if
the hole is too small, the appliance might starve for intake
air. If there is a frame wall in front of the masonry wall, cut
and frame a 10 in. (254mm) square opening in the wall
(centered around the 6 in. (152mm) masonry opening). If
there is sheet rock only (no studs) in front of the masonry the
10 in. (254mm) opening is still needed, but does not need
to be framed. If the hole is framed a round support box/wall
thimble is required. This allows the retro connector to mount
directly on the masonry and provide the correct clearances
to combustibles (Figure 5.25).
Step 4.
To determine the length of flex needed, measure from 3 in.
(76mm) above the top of the flashing down to the level of the
opening. Add the distance from the center of the chimney
out through the wall. Cut a piece of 4 in. (102mm) flex to this
length (extended to its nominal length). Be sure to leave 2-3
in. (51-76mm) of flex above the existing chimney to allow for
connection to the termination kit.
Step 3.
Secure the flashing to the top of the masonry chimney using
a bead of non-hardening sealant-adhesive. If the flashing is
larger than the top of the chimney, cut and fold flashing as
needed to fit chimney (Figure 5.26).
Step 5.
Connect the flex liner to the top adapter using three sheet
metal screws (Figure 5.21 page 18).
Step 6.
Feed the flex liner through the flashing into the chimney.
Carefully feed the flex liner down the chimney to the bottom
and out the opening in the masonry wall, forming an angle to
line up the flex liner with the vent opening on the appliance.
Step 7.
If additional lengths of flex liner are needed to span the
chimney height, use a flex coupler to connect the pieces of
flex liner together. Connect the flex to the coupler by using
four sheet metal screws for each side (Figure 5.27, on the
next page).
Fire Risk.
Explosion Risk.
• Do not let the flex liner sag below the level at
which it will connect to the appliance or connector.
This could allow hot gas to become trapped and
potentiallybecomeafire hazard. The flexlinerpath
shouldalwaysbeslopeduptowardthetermination
cap.
WARNING
NOTE: For hearth applications refer to page 21, Figure 5.24 for
the use of a co-axial to co-linear appliance connector.
CAUTION
Ensure that existing chimney is functionally sound and clean.
• Have inspection done by qualified chimney sweep or
professional installer BEFORE converting to direct vent
appliance.