Heat & Glo MISSION-BAY Owner’s Manual

MISSION BAY

Tested and

Listed by

Beaverton

Oregon USA

OMNI- Test Laboratories, Inc .

C

US

DIRECT VENT ROOM HEATER

Model:

MISSION-BAY

Owner’s Manual

Installation and Operation

CAUTION

DO NOT DISCARD THIS MANUAL

• Important operating and
maintenance instructions
included.

WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury, or death.

• Do not store or use gasoline or other flam­mable vapors and liquids in the vicinity of this
or any other appliance.

• What to do if you smell gas

- D o n ot tr y t o l ig ht an y a pp liance.

Do not touch any electrical switch. Do not
use any phone in your building.

- Immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s
instructions.

- If you cannot reach your gas supplier, call

the fire department.

• Installation and service must be performed
by a qualified installer, service agency, or the
gas supplier.

Installation and service of this appliance should be
performed by qualified personnel. Hearth & Home
Technologies suggests NFI certified or factory-trained
professionals, or technicians super­vised by an NFI certified professional.

• Read, understand and
follow these instructions
for safe installation and
operation.

DO NOT

DISCARD

• Leave this manual with
party responsible for use
and operation.

WARNING

HOT! DO NOT TOUCH.
SEVERE BURNS MAY RESULT.
CLOTHING IGNITION MAY RESULT.

Glass and other surfaces are hot during oper­ation and cool down.

• 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.

In the Commonwealth of Massachusetts:

• installation must be performed by a licensed plumber or gas
fitter.

See Table of Contents for additional Commonwealth of Mas­sachusetts requirements.

This appliance may be installed as an OEM installation in manufactured
home (USA only) or mobile home and must be installed in accordance with
the manufacturer's instructions and the manufactured home construction
and safety standard, Title 24 CFR, Part 3280 or Standard for Installation

in Mobile Homes, CAN/CSA Z240MH.

This appliance is only for use with the type(s) of gas indicated on the
rating plate.

250-7512F July 12, 2006

Read this manual before installing or operating this appliance.

F-

Alcove height
Hauteur De
l’Alcôve

A*

A*

DO NOT REMOVE THIS LABEL / NE PAS ENLEVER

L’ÉTIQUETTE

Made in U.S.A. / Fait Aux États-Unis

MINIMUM CLEARANCES TO COMBUSTIBLES

ESPAC

E 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.

A. Rear of side panel to side wall 10” (254 mm)
Du mur du poêle au coté du mur
A*. In an Alcove 10” (254 mm)
Dans l’alcôve
B. Rear of control box to back wall 2” (51 mm)
Le contrôle arrière au mur arrière
C. Flue pipe to back wall 6” (152 mm)
Du tuyau de cheminée au mur arrière
D. Rear corner of stove top to side wall 2” (51 mm)
Du coin arrière du poêle au mur de coté
E. Min. Floor to ceiling height (std. room) 84” (2134 mm)
Hauteur minimum du plancher au plafond (pièce standard)
F. Flat surface on top of stove to alcove ceiling 19” (483 mm)
Du dessus du poêle au plafond de l’alcôve
G. Maximum alcove depth 36” (914 mm)
Profondeur maximum de l’alcôve
H. Minimum alcove width 40” (1016 mm)
Largeur minimum de l’alcôve

250-7531

MODEL / MODÈLE: MISSION B AY

VENTED GAS FIREPLACE HE ATER

FOURNAISE AU GAZ AVEC VENTILATION

NOT FOR USE WITH SOLID FUE L /

NE PAS UTILISER AVEC LE COMBUSTIBLE

SOLID E

Keep burner and control compartment clean. See installation and operating instructi ons accompanying t his appliance./Gardez le brûleur et le comparti ment de
contrôle propres. Vérifiez les instructions d’i nstallation et d’opération qui accompagnent cet appareil.
This vented gas fireplace heater i s not for use with air filters.

/ Cet appareil de chauffage au gaz n’est pas pour l’usage avec des fil tres d’air./Due to high surface

temperatures, keep children, clothing and furnitur

e away. / Du aux surfaces de températures élevées, gardez les enfants, les vêtements et les meubles à distance

éloignée.

ELECTRIC A L SUPPLY / FOURNITUR E ÉL ECTR IQUE: 120 Volts, 1.2 Amps, 60 H z

This applianc e mus t be properl y connecte d to a ventin g system i n accordanc e with t he manufacturer' s installatio n instructions./Ce t apparei l doi têt re correctemen t raccord é à un systèm e d'évacuation , conformémen t auz instruction s
du fabricant.
This appliance is only for use with the type of gas indicated on the rating plate and may be installed in an aftermarket, permanently located, manufactured (mobile) home where not prohibited by local codes. See owne r’s manual
for details. This appliance is not convertible for use with other gase s, unless a certified kit is used./Cet appareil doit être utilisé seulement avec le gaz indiqué sur l’étiquette enregistrée et peut être installé dans une maison mobile
en place permanente dans les endroits permis par les codes locaux. Voyez le manuel du propr iétaire pour des détails supplémentaires. Cet appareil ne doit pas être converti avec d'autres gaz sans l’utilisation d’un ensemble de
conversion certifié.

FAN TYPE VENTED CIRCULATOR / VENTILATEUR CIRCULATOIRE

Blower Electrical Rating / Évaluation du Ventilateur Électrique:

115 V., 1.5 Amps, 60 Hz, 150 Watt

s

Thermal Efficiency / Efficacité Thermique*

84% NG (blower on / avec ventilateur allumé)
85% LP (blower on / avec ventilateur allumé)

*With Maximum horizontal length. / Avec longueur horizontale maximum.

Repo rt No. / Rapport Nu mé ro

061-S-49-5

SERIAL NO .

APPROUVÉ POUR LE CANADA ET LESÉTATS-UNIS:
ANS

IZ21.88b-2001 / CSA2.33b-M01Fournaisesau Gazavec Ventilation,et lessections
applicablede UL 307b Appareils de Chauffage Au Gaz pour les Maisons Mobileset
les VéhiculesMotorisés, CAN/C

GA 2.17-M91“Gas Fired Appliances for use at High

Altitud

es”. Cet appareil est manufacturépour l’opération avec le Gaz Naturel. Pour
une conversi on a u gaz propane les pièces du M anufacturier #LPK-MB et ses
instructionsdoivent être utilisées.Cet appareil peut êtreutilisé dans une chambre à
coucher ou sallede séjour; au Canada, l’installation d’un thermostat

à distance est

exigée

.

WARNING:IMPROPERINSTALLATION,ADJUSTMENT,ALTERATION,SERVICEORMAINTENANCECANCAUSEINJURYORPROPERTYDAMAGE.REFERTOTHE OWNER’S INFORMATIONMANUALPROVIDEDWITHTHISAPPLIANCE.FORASSISTANCEOR ADDITIONAL
INFORMATIONCONSULTA QUALIFIEDINSTALLER,SERVICEAGENCYOR THEGASSUPPLIER./AVERTISSEMENT:UNE INSTALLATION,UN AJUSTEMENT,UNE ALTÉRATION,UNSERVICEOUUNENTRETIENINCORRECTSPEUVENTCAUSERDESDOMMAGESMATÉRIELS.
RÉFÉREZ-VOUS AU MANUELD’INFORMATION FOURNI AVEC CET APPAREIL. POUR ASSISTANCE OU DES INFORMATIONS SUPPLÉMENTAIRES CONSULTEZ UN INSTALLATEUR QUALIFIÉ, UNE AGENCE DE SERVICE OU UN FOURNISSEUR DE GAZ.

CAUTION: HOT WHILE IN OPER ATION. DO NOT TOUCH. SEVERE BURNS MAY RESUL T. KEE P CHILDREN, CLOTHING, FURNITURE, GASOLINE AND OTHER LIQUIDS HAVING FLAMMABLE VAPORS AWAY./ATTENTION: CHAUD LORQ U’IL EST EN OPÉR ATION. NE TOUCHEZ
PAS. DES B RÛLURES SÉVÈRES PEUVENT EN RÉSU LTER. GARDEZ LES ENFANTS, LES VÊTEMENTS, LES MEUBLES, L A GAZOLINE ET LES AUTRES LIQUIDES DE VAPEUR INFLAMMABLE ÊLOIGNÉS.

CAUTION:

DO NOT OPER ATE THIS APPLIANCE WITH GLASS REMOVED, CRACKED OR BROKEN. REPLACEMENT OF THE PANEL(S) SHOULD BE DONE BY A LICENSED OR QUALIFIED SERVICE PERSON./ ATTENTION: CET APPAREIL NE DOIT PAS ÊTRE OPÉRÉ SI LA VITRE

EST BRI SÉE, CRAQUÉE OU ENLEVÉE. LE REMPLACEMENT DU

PANNEAU DOIT ÊTRE FAIT PAR UNE PERSONNE LICEN SÉE ET QUALIFIÉE.

APPROVED FOR CANADA AND USA TO:
ANSI Z21.88b-2001

/ CSA 2.33b-M01 Vented Gas Fireplace Heaters, and applicable
sections of UL307b Gas Burning Heating Appliances for Manufactured Homes and
Recreationa

l Vehicles, CAN/CGA 2.17-M91 “Gas Fired Appliances for use at High

Altitude

s.” This appliance is manufactured for operat ion wi th Natural Gas. Fo r
conversionto propane Manufacturer’sPart #LPK-MBand instructions mustbe used.
This applianc

e may be installedin a bedroom or bedsitting room; in Canada remote

thermostat installation is required.

HEARTH: A non-combustiblehearth padis not required.However,the
floo

rbeneaththestovemustbe stable,level,andstrongenoughtosupport

the stove without a tipping hazard

.

CHEMINÉE: Un coussinet non-combustible de cheminée n’est pas
exigé. Cependant, leplancher en dessous du poêle doit êtredroit, à
nivea

u et asse z fort pour su pporter le p oêle sans le ha sard de

basculer.

A division of Hearth & HomeTechnologies

20802 Kensington Blvd, Lakeville, MN 55044

www.heatnglo.com

C

E

D

D

H

G

Not to scale

This appliance must be installed in accordance with the current Standard CAN/CSA Z240 MH, Mobile Housing or with Manufactured Home Construction and Safety
Standard, Title 24 CFR, Part 3280, or when such standard is not applicable, ANSI/NCSBCS A225.1/NFPA501A, Manufactured Home Installation Standard. WARNING:
Do not operate the appliance until all sections have been assembled and installed in accordance with the manufacturer's instructions.
Installer l'appareil selon la norme CAN/CSA-Z240, Serie MM, Maisons mobiles ou la norme 24 CFR Part 3280, Manufactured Home Construction and Safety Standard.
Si ces normes ne sont pas pertineutes, utilisez la norme ANSI/NCSBCS A225.1/NFPA 501A, Manufactured Home Installations Standard. AVERTISSEMENT: Ne pas
utiliser l'appareil tant que toutes les sections n'ont pas ete assemblees et installees selon les instructions du fabricant.

For use with Natural Gas For use with Propane

Usage Au Gaz Naturel Usage Au Gaz Propane

0-2000 ’ 0-2000’
Top Vent: Input Rate on “HI” (BTU/Hr) 30,000 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)** 25,500 25,650 Puissance Maximum (BTU/Hr
Main Burner Orifice .1065 (36 DMS) .0635 (52 DMS) 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 .

)

Manifold 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 Allu mé

P.4.1-02 Canada Minimum pipe (P.4.1-02 Le canada tuyau minimum) 66.40% NG / 67.81% LP

B

A

007

Date of Manufacture / Date du Manufacturier

2006 2007 2008 Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecJan

This appliance equipped only for altitudes 0-2000 ’ (0-610m) in USA; and in Canada for altitudes of 0-450 0’ (0-1370m). In USA for Altitudes above 200 0’, the vent
configuration, orifice, or combination of both may need to be changed. See Owne r’s Manual for information on making these changes.
This appliance must be installed in accordance with local codes, if any (and Commonwealth of Massachusetts approved); if none, follow National Fuel Gas
Code ANSI Z223.1, or Canadian Installation Codes, CAN/CGA-B149 in Canada. Install and use only in accordance with manufacture r’s installation and operating
instructions.

NOTE: Have the gas supply line installed in accordance with local building codes by a qualified installer approved and/or licensed as required by the

locality. (In the Commonwealth of Massachusetts, installation must be performed by a licensed plumber or gas fitter.)

Cet appareil est équipé pour les altitudes de 0-2000 ’ (0-610m) aux États-Unis; et au Canada pour les altitudes de 0-4500 ’ (0-1370m). Pour les alti tudes au dessus
de 2000’ aux États-Unis, la configuration du ventilateu r, son orifice ou les deux peuvent possiblement avoir à être changé. Voyez le manuel du propriétaire pour
les informations sur ces changements.
Cet appareil doit être installé en accord avec les codes locaux, s’il-y-a lieu (et approuvé par dans la République de Massachusetts); sinon lisez au National Fuel
Gas Code ANSI Z223.1, ou aux code courant d'installation Installez et utilisez en accords avec les instructions d’installation et d’opération du manufacturie r.

REMARQUE: Le conduit gaz doit être installé conformément aux codes de construction locaux. L'installation doit être effectuée par un technicien qualifeé
et/ou muni d'une licence de manière à respecter les règlements municipaux. (Dans la République de Massachusetts, l'installation doit être effectuée par
un plombier ou un installateur d'appareils à gaz agrée. )

S

A

M

P

L

E

O-T

L

Tested and

Listed by

Beaverton

Oregon USA

OMNI-Test Laboratories, Inc.

C

US

Please retain this owner's manual for future reference.

Congratulations

Congratulations on selecting a Heat & Glo gas appliance - an
elegant and clean alternative to wood burning appliances.
The Heat & Glo gas 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.

SAMPLE OF RATINGS LABEL

LOCATION: Attached to rear of appliance

This Owner's Manual should be retained for future reference.
We suggest that you keep it with your other important
documents and product manuals.

The information contained in this Owner's Manual, unless
noted otherwise, applies to all models and gas control
systems.

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!

Serial Number

Model Name
Test Lab &
Report No.

Page 2

Heat & Glo · Mission Bay · 250-7512F

Manufactured
Date

July 12, 2006

- 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 7: Electrical Information

A. Recommendation for Wire ..................26

B. Connecting to the Appliance ...............26

C. Standing Pilot Ignition

System Wiring .....................................26

Section 8: Appliance Setup

A. Remove Shipping Materials ................28

B. Accessories .........................................28

C. Door Crown Installation .......................28

D. Grille Installation .................................28

E. Brick Installation ..................................28

F. Positioning the Logs ............................29

G. Mineral Wool .......................................30

H. Optional Blower Installation ................30

I. Vertical Damper Adjustment ...............33

J. Intake Air Shutter Adjustment .............33

K. Glass Replacement .............................33

Section 9: Operating Instructions

A. Before Lighting Appliance ...................34

B. Controls ...............................................34

C. Lighting Appliance ...............................35

D. After Appliance is Lit ...........................36

E. Frequently Asked Questions ...............36

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

 = Contains updated information.

Section 10: Troubleshooting ...............................37

Section 11: Maintaining & Servicing Appliance

A. Maintenance Tasks .............................40

Section 12: Reference Materials

A. Appliance Dimension Diagram ...........41

B. Vent Components Diagram ................42

C. Vent Components List ........................43

D. Service Parts List ................................44

E. Accessories ........................................46

F. Warranty Policy ...................................47

G. Contact Information ............................48

July 12, 2006

Heat & Glo · Mission Bay · 250-7512F

Page 3

1

Listing and Code Approvals

A. Appliance Certification

MODEL Mission Bay
LABORATORY OMNI-Test Laboratories, Inc.

061-S-47b-5

TYPE Vented Gas Fireplace Heater
STANDARD

The product is listed to ANSI standards for “Vented Gas
Appliance Heaters” and applicable sections of “Gas Burning
Heating Appliances for Manufactured Homes and Recre­ational Vehicles” and "Gas Fired Appliances for use at High
Altitudes".

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.

ANSI Z21.88b-2003 ּ CSA 2.33b-2003ּ
UL307b ּ CAN/CBA 2.17-M91

C. Specifications

Model

(US or Canada)

Mission

Bay (NG)

Mission

Bay (LP)

*Maximum Vent Blower On
**Canada Only

Maximum

Input

BTU

30,000 22,000 36 84 66.40

30,000 23,000 52 85 67.81

Minimum

Input

BTU

Orifice

Size

(DMS)

Steady

State

Efficiency*

%

P4*

%

D. High Altitude Installations

Omni-Test Laboratories, Inc. listed gas appliances are tested
and approved without requiring changes for elevations from 0
to 2000 feet in the U.S.A. and 0 to 4500 feet in Canada.

When installing this appliance at an elevation above 2000
feet, 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 above a
2000 foot 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 (in
Canada), check with local authorities.

B. Glass 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.

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.

WARNING

Do NOT use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect
the appliance and to replace any part of the control system
and any gas control which has been under water.

Page 4

Heat & Glo · Mission Bay · 250-7512F

E. Non-Combustible Materials

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.

F. Combustible Materials

Materials made of or surfaced with wood, compressed
paper, plant fibers, plastics, or other materials that can ignite
and burn, whether flame proofed or not, or whether plastered
or unplastered shall be considered combustible materials.

July 12, 2006

NOTE: The following requirements reference various
Massachusetts and national codes not contained in this
document.

G. Requirements for the Commonwealth of
Massachusetts

For all side wall horizontally vented gas fueled equipment
installed in every dwelling, building or structure used in whole
or in part for residential purposes, including those owned or
operated by the Commonwealth and where the side wall
exhaust vent termination is less than seven (7) feet above
finished grade in the area of the venting, 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
gas fueled equipment, the installing plumber or gas fitter shall
observe that a hard wired carbon monoxide detector with an
alarm and battery back-up is installed on the floor level where
the gas equipment is to be installed. In 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 structure
served by the side wall horizontal vented gas fueled equip­ment. It shall be the responsibility of the property owner to
secure the services of qualified licensed professionals for the
installation of hard wired carbon monoxide detectors.

In the event that the side wall horizontally vented gas fueled
equipment is installed in a crawl space or an attic, the hard
wired carbon monoxide detector with alarm and battery back­up may be installed on the next adjacent floor level.

In the event that the requirements of this subdivision can not
be met at the time of completion of installation, the owner shall
have a period of thirty (30) days to comply with the above
requirements; provided, however, that during said thirty (30)
day period, a battery operated carbon monoxide detector with
an alarm shall be installed.

Approved Carbon Monoxide Detectors

Each carbon monoxide detector as required in 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.”

Inspection

The state or local gas inspector of the side wall horizontally
vented gas fueled equipment shall not approve the installa­tion unless, upon inspection, the inspector observes carbon
monoxide detectors and signage installed in accordance with
the provisions of 248 CMR 5.08(2)(a) 1 through 4.

Exemptions

The following equipment is exempt from 248 CMR 5.08(2)(a)
1 through 4:

The equipment listed in Chapter 10 entitled “Equipment

•
Not Required To Be Vented” in the most current edition of
NFPA 54 as adopted by the Board; and

Product Approved side wall horizontally vented gas 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 vent­ing system design or venting system components with the
equipment, the instructions provided by the manufacturer for
installation of the equipment and the venting system shall
include:

•

Detailed instructions for the installation of the venting sys­tem design or the venting system components; and

•

A complete parts list for the venting system design or
venting system.

Gas Equipment Venting System NOT Provided

When the manufacturer of a Product Approved side wall hor­izontally vented gas fueled equipment does not provide the
parts for venting the flue gases, but identifies “special vent­ing systems”, the following requirements shall be satisfied by
the manufacturer:

•

The referenced “special venting system” instructions shall
be included with the appliance or equipment 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.

A copy of all installation instructions for all Product Approved
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 appli­ance or equipment at the completion of the installation.

See Gas Connection section for additional Common
wealth of Massachusetts requirements.

-

-

July 12, 2006

Heat & Glo · Mission Bay · 250-7512F

Page 5

2

Getting Started

A

. Design & Installation Considerations

Heat & Glo direct vent gas appliances are designed to oper­ate with all combustion air siphoned from outside of the
building and all exhaust gases expelled to the outside. No
additional air source is required.

CAUTION

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.

When planning an installation, it is 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.

• Whether optional accessories - devices such as a

blower, thermostat or remote control - are desired.

WARNING

Keep appliance dry.

• Mold or rust may cause odors.

• Water may damage controls.

B. Tools and Supplies Needed

Before beginning the installation be sure that the following
tools and building supplies are available. Note: Not all

tools will apply to every installation.

C. Inspect Appliance & Components

WARNING

Inspect appliance and components for
damage. Damaged parts may impair safe
operation.

• Do NOT install damaged components.

• Do NOT install incomplete components.

• Do NOT install substitute components.

Report damaged parts to dealer.

• 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.

WARNING

Hearth & Home Technologies disclaims any
responsibility for, and the warranty will be
voided by, the following actions:

• Installation and use of any damaged appliance or vent
system component.

• Modification of the appliance or vent system.

• Installation other than as instructed by Hearth & Home
Technologies.

• Improper positioning of the gas logs or the glass door.

• Installation and/or use of any component part not approved
by Hearth & Home Technologies.

Any such action may cause a fire hazard.

Pliers Gloves
Hammer Framing Square
Phillips Screwdriver Electric Drill / Bits
Flat Blade Screwdriver Safety Glasses
Plumb Line Voltmeter
Level Wrenches
Manometer Allen Wrench Set
Tape Measure
1/2 - 3/4 in. Length, #6 or

#8 Self-Drilling Screws

Page 6

Ratchets / Sockets
Non-corrosive Leak Check Solution or

Combustible Gas Detector

Heat & Glo · Mission Bay · 250-7512F

July 12, 2006

3

A

B

C

A*

F -Alcove height

E

G

D

D

H

A*

Appliance Location 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.

A. Selecting Appliance Location

When selecting a location for your appliance it is important to
consider the required clearances to wall (see Figure 3.1).

NOTE: For actual appliance dimensions refer to
Section 12.

B. Clearances to Combustibles

WARNING

Fire Risk
Provide adequate clearance:

• Around air openings

• To combustibles

• For service access
Locate appliance away from traffic areas.

WARNING

Fire Risk.

• Locate and install appliance to all

clearance specifications in manual.

Model A A* B C D E F G H

Mission
Bay

Figure 3.1

It is permissable to place the appliance on carpet.

Inches

Millimeters

10 10 2 6 2 84 19 36 40

254 254 51 152 51 2134 483 914 1016

CAUTION

Some carpet materials may be sensitive to radiant heat from the
appliance causing discoloration or odor.

NOTE: Flooring beneath appliance may reach 90 degrees
plus room ambient temperature. Check with flooring
manufacturer for maximum temperature allowed on flooring
surfaces.

July 12, 2006

Heat & Glo · Mission Bay · 250-7512F

WARNING

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.

Page 7

Termination Locations

24 in. (610mm)

(minimum) to

Perpendicular

Wall (Gas Only)

A

18 in.

(457mm)

Gas or Wood

Termination

Gas

Termination

Gas Termination

A 6 in. (152mm)

Wood & Fuel Oil Termination

20 in. (508mm)

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

12

X

LOWEST

DISCHARGE

OPENING

ROOF PITCH

IS X/12

H (MIN.) - MINIMUM HEIGHT FROM ROOF

TO LOWEST DISCHARGE OPENIN

G

VERTICAL

WALL

2 FT.

MIN.

2 FT.

TERMINATION

CAP

HORIZONTAL

OVERHANG

4

A. Vent Termination Minimum Clearances

WARNING

Fire Risk.
Explosion Risk.
Maintain vent clearance to combustibles

as specified.

• Do not pack air space with insulation or
other materials.

Failure to keep insulation or other materials
away from vent pipe may cause fire.

Measure vertical clearances from this surface.

Figure 4.1 Termination Clearances

Figure 4.2 Multiple Vertical Termination

Page 8

Measure horizontal clearances from this surface.

(See Figure 4.4 for specific clearances.)

Figure 4.3 Minimum Height from Roof to Lowest Discharge

Opening

Figure 4.3 specifies minimum vent heights for various

pitched roofs.

Heat & Glo · Mission Bay · 250-7512F

July 12, 2006

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 per­manently closed window. (Glass)

D* = 12 inches ............. vertical clearance to unventilat-

ed soffit or to ventilated soffit lo­cated 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

applian

ce

K = 3 ft. (U.S.A.)

6 ft. (Canada) ......... clearance to a mechanical

(powered) air supply inlet

L** = 7 ft. ......................... clearance above p a v ed

sidewalkor a paved driveway
located on

public property

M*** = 18 inches .............. clearance under veranda ,

porch, deck, balconyor over­ha

ng

42 inches .............. vinyl

(See Note 1)

(See Note 1)

S = 6 inches ................. cle a rance from sides of

electrical service

T = 12 inches ................ clearance above electrical

service

(See Note 3)

(See Note 3)

____________________________________________________________________ _

_____________________________________________________________________

____________________________________________________________________ _

_____________________________________________________________________

Q

MIN

R

MAX

1 cap 3 feet 2 x Q

ACTUA L

2 caps 6 feet 1 x Q

ACTUA L

3 caps 9 feet 2/3 x Q

ACTUA L

4 caps 12 feet 1/2 x Q

ACTUA L

N = 6 inches ................. non-vinyl sidewall s

12 inches ............... vinyl sidewalls

P = 8 ft.

Alcove Applications

** a vent shall not terminate directly above a sidewalk or paved

driveway which is located between two single family dwellings and

*** 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 is suggested. (See vents components pages.)

NOTE 2: Termination in an alcove space (spaces only open on one side
and withat an overhang) are permitted with the dimensions specified for
vinyl or non-vinyl siding and soffits. 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 termination cap.

NOTE 3: Location of the vent termination must not interfere with access
to the electrical service.

NOTE: Local codes or regulations may require different
clearances.

NOTE: Termination caps may be hot. Consider their proximity to
doors or other traffic areas.

WARNING: In the U.S.: 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 termination is NOT permitted in screened
porches. Vent 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.

Heat & Glo assumes no responsibility for the improper performance
of the appliance when the venting system does not meet these
requirements.

serves both dwellings.

(See Note 2)

Electrical

Service

V

S

V

S

V

T

D*

V

D

E

B

L

v

v

v

v

v

v

v

v

B

B

A

H

M

X

J or K

I

A

G

F

U.S.

(3 FT)

B

M

N

P

R

Q

R

MAX

= (2 / # termination caps) x Q

ACTUAL

Q

MIN

= # termination caps X 3

1 cap 3 feet 2 x Q
2 caps 6 feet 1 x Q
3 caps 9 feet 2/3 x Q
4 caps 12 feet 1/2 x Q

Q

= # termination caps x 3 R

MIN

Q

MIN

= (2 / # termination caps) x Q

MAX

R

MAX

ACTUAL

ACTUAL

ACTUAL

ACTUAL

ACTUAL

Figure 4.4

July 12, 2006

Heat & Glo · Mission Bay · 250-7512F

CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL
SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE
INSTALLED.

Page 9

5

Vertical

Horizontal

12 in.

8-1/2 in.

8-1/2 in.

Vent Information

A. Venting Components

In order to comply with applicable codes and product
warranties, use only following venting components:

• Hearth & Home Technologies (HHT)

• Simpson Dura-Vent (SDV)

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.

This appliance is a direct vent heater. All combustion air must
come directly from the outside of the building. The vent pipe
for this unit consists of an inner and an outer pipe. The inner
pipe carries the appliance exhaust out of the system, and the
outer pipe brings fresh combustion air into the appliance.

B. Use of Elbows

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.

Diagonal runs have both vertical and horizontal vent aspects
when calculating the effects. Use the rise for the vertical
aspect and the run for the horizontal aspect. (See

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
straight pipe is allowed between two elbows. (See

5.1.)

Figure

Figure

• A round support box/wall thimble or heat shield is
required when the venting passes through a combus­tible 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 instal­lation of these items.

WARNING

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.

Figure 5.1

C. Measuring Standards

Vertical and horizontal measurements were made using the
following standards.

• 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 8.

• Vertical terminations are measured to the top of the last
pipe before termination cap.

• Horizontal pipe installed level with 1/4 in. rise.

Page 10

Heat & Glo · Mission Bay · 250-7512F

July 12, 2006

D. How to Use the Vent Graph E. Venting Guidelines

EX. 2

EX. 1

11" 2' 4' 6' 8' 10' 12' 14' 15'

30

'

28

'
26'
24

'
22

'
20

'
18

'
16'
14

'
12

'
10

'

8'
6'
4'
2'
0'

(MAX)

(MIN)

32'

34

'

36

'

38

'

40

'

VERTICAL DISTANCE
FROM APPLIANCE TO THE
90° ELBOW

TOTAL HORIZON TAL RUN TO OUTSIDE OF EXTERIOR WALL (EXCLUDING ELBOWS )

60 - 70%
Cl

osed

100%

50% Closed

80-90%

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 top of the
appliance to the center of the 90° elbow is 7 ft. (21m), the
horizontal run to the outer wall flange must not exceed 13
ft.-3 in. (4m).

.
Example 2: If the vertical dimension from the top of the

appliance is 21 ft. (6m), the horizontal run to the outer wall
flange must not exceed 4 ft.-3 in. (1m).

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 vent pipe
run. A single vertical to horizontal 90° elbow is already
calculated into the allowable 15 ft. (5m) run. Each
additional 90° elbow reduces the maximum horizontal
distance by 3 ft. (914mm).

Example: The use of three elbows would reduce the

allowable horizontal run to 9 ft. (3 - 1 = 2 elbows
x 3 ft. = 6 ft.; 15 ft. max. - 6 ft. = 9 ft. max.)

Notes:

• The maximum horizontal vent run is 15 ft. (5m) when the
vertical vent rise is 10 ft. (3m).

• Horizontal sections require a 1/4 in. (6mm) rise for every
12 in. (305mm) of horizontal travel.

• Exterior vent diameter = 6-5/8 in. (168mm); Inner vent
diameter = 4 in. (102mm).

•

Horizontal sections require noncombustible support every
3 ft. (914mm) , e.g. wall straps.

• For any vertical termination a minimum of 6 ft. (2m)
vertical must be used.

EXCEPTIONS FOR HORIZONTAL INSTALLATIONS:

*The maximum horizontal vent run is 30 in. (762mm).

*The maximum horizontal vent run with a 45° elbow is
18 in. (457mm).

*No external minimum rise is required.

*The minimum horizontal vent run is 6 in. (152mm).

July 12, 2006

Figure 5.2

Heat & Glo · Mission Bay · 250-7512F

Page 11

F. Horizontal Termination

90 DEGREE
ELBOW

PIPE
LENGTH

PIPE LENGTH

WALL THIMBLE COVER

Part
#SLK-01TRD ­Recommended
for optimum
performance

WALL THIMBLE

Up and Out Installations for
Top Vent Configurations

On horizontal terminations use
only Hearth & Home Technologies
Inc. Part #SLK-01TRD

CENTER
LINE

CENTER LINE

CENTER OF HOLE

WALL
THIMBLE

Figure 5.3

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 attached. If this is the case, you may
want to adjust the location of the appliance.

WARNING

Fire Hazard.
Exhaust Fume Risk.
Impaired Performance of Appliance.

• Ensure vent components are locked together correctly.

• Pipe may separate if not properly joined.

Female Locking Lugs

Male Locking Lugs

Figure 5.4

WARNING

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).

Improper support may allow vent to sag or separate.

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 noncombustible
material, i.e. masonry block or concrete, a 7 in. (178mm)
diameter hole is acceptable.

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.

Page 12

Heat & Glo · Mission Bay · 250-7512F

Figure 5.5

July 12, 2006

NOTE:

WOOD
SCREW

WALL THIMBLE

PART HHW2 PART
841-0670 (Preferred)

VINYL SIDING

APPLY SEALANT TO ALL
FOUR SIDES

SCREWS

BOLT HORIZONTAL TOP
TO VINYL STANDOFF

SCREWS

VINYL SIDING STANDOFF
WITH SIDING BENEATH
REMOVED

WALL THIMBLE

WALL THIMBLE
COVER

8 in.

(203mm)

7 in.

(178mm)

7 in.

(178mm)

6 in.

(152mm)

(1) Installation requires a minimum of 6 in. (152mm)

horizontal run of vent with a 1/4 in. (6mm) rise run towards
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 9.

(3) For installations requiring a vertical rise on the exterior

of the building, the HHT RHVK snorkel kit (Part #844-

8921) 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 termination must
be installed below grade (i.e. basement application),
proper drainage must be provided to prevent water from
entering the snorkel termination. Do not backfill around
snorkel termination.

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).

Figure 5.7

(NOTE: If you are installing termination cap HHW2, the

pipe will be off center on flashing). Ensure that proper
clearances to combustible materials are maintained. If
you are using an approved termination cap other than
HHW2 (part #841-0670) on a building with vinyl siding,
a vinyl siding standoff should be installed between the
termination cap and the exterior wall (Figure 5.8). 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. The vent terminal cap
shall not be recessed into a wall or siding. Remove
siding from the area where the standoff will be located.

Figure 5.6

NOTES:

(1) The four wood screws provided should be replaced

with appropriate fasteners for stucco, brick, concrete,
or other types of sidings.

(2) Termination cap HHW2 is highly recommended on a

building with vinyl siding, as the vinyl siding standoff
is built in. 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.

July 12, 2006

Heat & Glo · Mission Bay · 250-7512F

Figure 5.8

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).

Page 13

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

VERTICAL

TERMINATION CAP

USE PART

#SLK-991DA

STORM COLLAR

FLASHING

FIRESTOP

PIPE LENGTH

SUPPORT BOX

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.

WARNING

Fire Hazard.
Exhaust Fume Risk.
Impaired Performance of Appliance.

G. Vertical Termination

1. Direct Vent Pipe

• Ensure vent components are locked together correctly.

• Pipe may separate if not properly joined.

WARNING

Do NOT connect a pipe section to a termination cap without
using the telescoping flue section found on the termination cap.

WARNING

Burn Risk.

• Local codes may require installation of a cap

shield to prevent anything or anyone from
touching the hot cap.

Figure 5.10

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

5.16. Check the instructions below for maximum vertical rise
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 11.

NOTE: Maximum vertical rise allowable is 35 ft. (11m),
Figure 5.11, on the next page.

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 11).

Page 14

Heat & Glo · Mission Bay · 250-7512F

July 12, 2006

PLUMBER'S TAPE
CONNECTED

TO

WALL STRAP

WALL
STRAP

TWO 45 DEGREE
ELBOWS

35 ft. (11m)
MAXIMUM

WARNING

Fire Risk.
Explosion Risk.
Maintain vent clearance to combustibles as speci-

fied.

• Do not pack air space with insulation or other
materials.

Failure to keep insulation or other materials away
from vent pipe may cause fire.

Figure 5.12

Figure 5.11

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.

July 12, 2006

Heat & Glo · Mission Bay · 250-7512F

Page 15