HearthStone Bristol DX User manual

Hearthstone Quality Home Heating Products, Inc. ®
Bristol DX Model 8762
Manual: 6400-40466
R: 3/26/2013
Bristol DX
(Model 8762)
GAS-FIRED DIRECT-VENT HEATER
Owner's Manual
Installation & Operating
Instructions
Read This Manual in Its Entirety
Operate And Maintain This Gas Heater
According To This Instruction Manual.
SAVE THESE INSTRUCTIONS!
WARNING: FOLLOW THE INFORMATION IN
THESE INSTRUCTIONS EXACTLY, IF NOT, A FIRE
OR EXPLOSION MAY RESULT CAUSING
PROPERTY DAMAGE, PERSONAL INJURY OR
LOSS OF LIFE.
WARNING: DO NOT STORE OR USE GASOLINE
OR ANY OTHER FLAMMABLE VAPORS AND
LIQUIDS NEAR THIS OR ANY OTHER GAS
APPLIANCE.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch electrical switches; do not use the phone
in your building.
Immediately call your gas supplier from a phone
outside the structure. Follow your gas supplier’s
instructions.
If you cannot reach your gas supplier, call the fire
department or 911.
A qualified installer, service agency, or gas supplier must
perform installation and service of this appliance. In the
Commonwealth of Massachusetts, all installation of gas
lines and gas fittings must be performed by a licensed gas
fitter or licensed plumber.
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN
SUIVRE LES INSTRUCTIONS DONNÉ DANS
CETTE NOTICE POUR RÉDUIRE AU MINIMUM LE
RISQUE D’INCENDIE OU POUR ÉVITER TOUT
DOMMAGE MATÉERIEL, TOUTE BLESSURE OU
LA MORT.
AVERTISSEMENT: NE PAS ENTRESPOSER NI
UTILISER D’ESSENCE NI D’AUTRE VAPERURS
OU LIQUIDES INFLAMMABLES DANS LE
VOISINAGE DE CET APPRAREIL OU DE TOUT
AUTRE APPAREIL.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
Ne pas tenter d’allumer d’appareil.
Ne touchez à aucun interrupteur. Ne pas vous servir
des téléphones se trouvant dans le batiment où vous
vous trouvez.
Appelez immédiatement votre fournisseur de gaz
depuis un voisin. Suivez les instructions du
fournisseur.
Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service dos incendies.
L’installation et service doit être exécuté par un qualifié
installer, agence de service ou le fournisseur de gaz.

Intentionally Blank

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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Information Sheet
Use this page to record all relevant information concerning the purchase, installation, and maintenance of your
Bristol DX Model 8762 Direct -Vent heater. This information will facilitate servicing, purchase of replacement
parts, and warranty claims (if necessary). Keep your original receipt in a safe place as proof of purchase.
Serial Number:
Fuel type:
Natural Gas
Liquid Propane
Sold by:
Date of Purchase:
Address:
Phone:
E-mail
Website:
Installed by:
Date of Installation:
Address:
Phone:
E-mail
Website:
Gas Supplier:
Address:
Phone:
E-mail
Website:
Read this Owner’s Manual before installing, or operating your BRISTOL DX. Retain this manual for future
reference.
SERVICE RECORD
Date
Who Performed Work
Work Performed
Notes:
WHAT WHEN
Firebox Cleaning............. annually
Glass Cleaning................ as needed
Door Gasket.................... Replacement as needed

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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Table of Contents
INTRODUCTION ...........................................................................................................................................................5
SAFETY INFORMATION ................................................................................................................................................6
PROFLAME CONTROL SYSTEM &FEATURES................................................................................................................8
Bristol DX 8762 Model Overview................................................................................................................................ 8
Control Functions ..................................................................................................................................................... 10
SPECIFICATIONS.......................................................................................................................................................12
INSTALLATION PREPARATION....................................................................................................................................13
Codes....................................................................................................................................................................... 13
Items Required for Installation.................................................................................................................................. 13
Packing List.............................................................................................................................................................. 13
Unpacking and Inspection........................................................................................................................................ 13
CLEARANCES TO COMBUSTIBLES..............................................................................................................................16
Clearance to Combustibles ...................................................................................................................................... 16
Hearth Requirement/Floor Protection....................................................................................................................... 16
VENTING INFORMATION.............................................................................................................................................18
Venting Components................................................................................................................................................ 18
Minimum Venting Installation Instructions ................................................................................................................ 22
ELECTRICAL SYSTEM INFORMATION ..........................................................................................................................25
GAS SUPPLY &CONNECTIONS..................................................................................................................................26
Gas Connections...................................................................................................................................................... 27
LOG SET,&SCREEN PLACEMENT.............................................................................................................................28
Installation of the Log Set......................................................................................................................................... 28
Installation of the Optional Screens.......................................................................................................................... 29
Removal of Log Set.................................................................................................................................................. 29
Completing the Installation ....................................................................................................................................... 29
LIGHTING &OPERATION ...........................................................................................................................................30
Lighting Instructions.................................................................................................................................................. 30
Initial Adjustments .................................................................................................................................................... 31
Daily Operation......................................................................................................................................................... 32
ROUTINE MAINTENANCE &CARE ..............................................................................................................................34
Cleaning ................................................................................................................................................................... 34
Monthly (or as needed):............................................................................................................................................ 34
Annually:................................................................................................................................................................... 34
As Needed:............................................................................................................................................................... 35
PARTS LIST..............................................................................................................................................................37
TROUBLESHOOTING..................................................................................................................................................38
RATING LABEL .........................................................................................................................................................40

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
5
Introduction
Congratulations on your purchase of the Bristol DX
Model 8762, Gas-Fired Direct-Vent heater. The
Bristol, by Hearthstone, incorporates the latest in
direct vent gas technology, which will provide you
with ease of use, clean, and efficient heat for years
to come. The Bristol’s copious three sides of glass,
sleek styling, and enameled or painted cast iron
gives the Bristol ambiance and a pleasing look that
is maintained with minimum care.
However, as with any gas appliance, the unit must
be properly and safely installed and maintained by
qualified service personnel to ensure safe and
trouble-free operation.
Bristol DX Model 8762 features:
1. Proflame 2 GTMFS Control System
2. 5-piece log set
3. Platinum Bright Embers
4. The option to toggle back and forth between an
Intermittent (IPI) or Continuous (CPI) pilot mode
via the remote control.
a. The IPI mode allows the most efficient
use of gas, burning the pilot only when
the thermostat calls for the burner to
ignite.
b. The CPI mode runs the pilot
continuously keeping the firebox warmer
thus promoting better draft in colder
climates.
5. Battery backup for functionality during power
outages.
6. Blower Assembly
7. Optional Screen Kit
The Proflame GTMFS System Features:
1. Thermostatic Remote Control
a. Six (6) flame levels, adjustable via the
remote
b. Split Burner control via remote
c. Six (6) blower speeds, adjustable via the
remote
d. Thermostatic mode to turn on/off based
upon room temperature.
e. “Smart” thermostatic mode to modulate
flame levels automatically as the unit
approaches the set point temperature.
f. Additional AC receptacle controlled
(on/off) by the remote.
2. “Child-safe” lock-out on remote control.
3. “Low Battery” indicator for Transmitter on remote
control
Part #
Description
8762-0010
Matte Black
8762-0020
Brown Enamel
8762-0083
Basil Enamel
Read this Owner’s Manual
Operate and maintain this gas heater according to
the instructions in this manual. For your safety, and
years of trouble free operation, read this manual in
its entirety.
Heater Must Be Installed and Maintained By
Qualified Service Personnel
Verify the gas connections and that venting systems
supply adequate combustion and ventilation air to
meet the requirements of local, regional or national
installation codes. Qualified service personnel must
inspect the gas heater before use, and at least
annually.
Manufactured & warranted by:
Hearthstone Quality Home heating Products, Inc.
317 Stafford Ave.
Morrisville, VT 05661
www.hearthstonestoves.com

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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Safety Information
Your Bristol is an attractive and extremely efficient
and easy to use heater, utilizing today’s best
technologies. By following a few simple safety
precautions and by performing minimal
maintenance, the unit will remain appealing while
providing years of quality performance.
The installation must conform to local codes or, in
the absences of local codes, the current National
Fuel Gas Code, ANSI Z223.1 (NFPA 54) or
CAN/CGA B149 Installation Code. (Installer
l’appareil selon les codes ou réglements locaux, ou,
en l’absence de tells réglements, selon les Codes
d’installation CAN/CGA B149.)
CAUTION: DO NOT USE THIS APPLIANCE IF ANY
PART WAS UNDER WATER. IMMEDIATELY CALL
A QUALIFIED SERVICE TECHNICIAN TO INSPECT
THE HEATER AND TO REPLACE ANY PART OF
THE CONTROL SYSTEM AND GAS CONTROL
THAT HAS BEEN UNDER WATER. (NE PAS SE
SERVIR DE CET APPAREIL S’IL A ÉTÉ PLONGÉ
DANS L’EAU, COMPLÉTEMENT OU EN PARTIE.
APPELER UN TECHNICIEN QUALIFIÉ POUR
INSPECTOR L’APPAREIL ET REMPLACER TOUTE
PARTIE DU SYSTÉME DE CONTRÔLE ET TOUTE
COMMANDE QUI ONT ÉTÉ PLUNGES DANS
L’LAU.)
During the first few hours of operation the appliance
may produce smoke and/or odor. This is normal
during the first several burns and also after long
periods when the stove is not burned. During these
initial burns, open a window(s) to assist in the
removal of the smoke/odor.
The appliance and its individual shutoff valve must
be disconnected from the gas supply piping system
during any pressure testing of that system at test
pressures in excess of ½ psig. (3.5k Pa). The
appliance must be isolated from the gas supply
piping system by closing its individual manual
shutoff valve during any pressure testing of the gas
supply piping system at test pressures equal to or
less than ½ psig (3.5k Pa).
Fire Hazard
Do not store or use gasoline, other flammable
vapors or liquids in the vicinity of this appliance.
Locate the Bristol out of traffic areas and away from
furniture, draperies, clothing, and flammable
material.
Vent Only to the Outside
Never vent the gas heater to other rooms or
buildings.
Service Caution
If you believe your Bristol is not in any way
performing properly, immediately discontinue
operation until the unit is inspected and approved by
qualified service personnel. Prior to servicing the
unit, turn the gas to the valve off, and disconnect
any electrical source. Ensure the unit is cool prior to
servicing and cleaning. Replace any safety screen,
guard, or component removed during servicing
prior to operation. Use of any components not
supplied by Hearthstone on the stove voids all
warranties. Do not substitute components.
Proper Fuel
This gas heater is designed to burn natural gas (NG)
or with conversion, liquid propane (LP). Never burn
any fuel gas not intended for use with this unit.
Never burn paper, wood, or other materials in this
appliance.
This heater is factory equipped to burn natural gas
(NG). To burn propane (LP), you must purchase an
LP conversion kit 97-56621.
This appliance is only for use with the type(s) of gas
indicated on the rating plate. This appliance is not
convertible for use with other gases, unless a
certified kit is used. Cet appareil doit être atilisé
uniquement avec les types de gas indiqués sur la
plaque signalétique. Ne pas l’utiliser avec d’autres
gas sauf si un kited conversion certifié est installé. )
WARNING: THIS GAS APPLIANCE MUST NOT BE
CONNECTED TO A CHIMNEY FLUE SERVING A
SEPARATE GAS OR SOLID-FUEL BURNING
APPLIANCE
WARNING: DO NOT OPERATE THE APPLIANCE
WITH THE FRONT GLASS REMOVED, CRACKED,
OR BROKEN. REPLACEMENT OF GLASS
SHOULD BE DONE BY A LICENSED OR
QUALIFIED SERVICE PERSON. ONLY OPEN
FRONT FOR ROUTINE SERVICE. DO NOT SLAM
FRONT OR STRIKE GLASS.
WARNING: HEARTHSTONE RECOMMENDS THAT
ONLY AN NFI CERTIFIED SERVICE TECHNICIAN
INSTALLS, AND REPAIRS THIS APPLIANCE. A
QUALIFIED SERVICE TECHNICIAN MUST
INSPECT THE APPLIANCE BEFORE USE, AND AT
LEAST ANNUALLY. MORE FREQUENT CLEANING
MAY BE REQUIRED DUE TO EXCESSIVE LINT
FROM CARPETING, BEDDING MATERIAL, PETS,
ETC. IT IS IMPERATIVE THAT THE CONTROL
COMPARTMENTS, BURNERS, AND CIRCULATING
AIR PASSAGES OF THE APPLIANCE ARE KEPT
CLEAN AND FREE OF OBSTRUCTIONS.

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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(S’ASSURER QUE LE BRÛLEUR ET LE
COMPARTIMENT DES COMMANDES SONT
PROPRES. VOIR LES INSTRUCTIONS
D’INSTALLATION ET D’UTILISATION QUI
ACCOMPAGNENT L’APPAREIL.)
Hot Surfaces
Certain exposed surfaces of the Bristol will reach
high temperatures during normal operation.
Clearances to combustibles must be maintained, as
specified in the “Clearances To Combustibles”
section of this manual.
DUE TO HIGH TEMPERATURES THE APPLIANCE
SHOULD BE LOCATED OUT OF TRAFFIC AND
AWAY FROM FURNITURE, DRAPERIES,
CLOTHING AND FLAMMABLE MATERIALS.
CHILDREN AND ADULTS SHOULD BE ALERTED
TO THE HAZARDS OF HIGH SURFACE
TEMPERATURES AND SHOULD STAY AWAY TO
AVOID BURNS TO SKIN OR CLOTHING IGNITION.
CAREFULLY SUPERVISE YOUNG CHILDREN
WHEN THEY ARE IN THE SAME ROOM AS THE
APPLIANCE. TODDLERS, YOUNG CHILDREN,
AND OTHERS MAY BE SUSCEPTIBLE TO
ACCIDENTAL CONTACT BURNS. A PHYSICAL
BARRIER IS RECOMMENDED IF THERE ARE AT
RISK INDIVIDUALS IN THE HOUSE. TO RESTRICT
ACCESS TO A FIREPLACE OR STOVE, INSTALL
AN ADJUSTABLE SAFETY GATE TO KEEP
TODDLERS, YOUNG CHILDREN, AND OTHER AT
RISK INDIVIDUALS OUT OF THE ROOM AND
AWAY FROM HOT SURFACES.
CLOTHING OR OTHER FLAMMABLE MATERIAL
SHOULD NOT BE PLACED ON OR NEAR THE
APPLIANCE. (SURVEILLE LES ENFANTS.
GARDER LES VÊTEMENTS, LES MEUBLES,
L’ESSENCE OU AUTRES LIQUIDES À VAPEUR
INFLAMMABLES LIN DE L’APPAREIL.)
CLEAN THE AREA AROUND, UNDER, AND
BEHIND THE UNIT ON A REGULAR BASIS TO
PREVENT THE ACCUMULATION OF DUST AND
LINT.
Ceramic Logs, & Burner
If the decorative ceramic log, or burner material
supplied with the Bristol is damaged or parts are
missing, they must be replaced with the same, or
approved Hearthstone replacement parts. These
components affect the combustion quality and safety
of the heater. Do not replace ceramic logs, or the
burner with unapproved ceramic components or any
other material.
We recommend you always wear gloves and safety
goggles while handling the ceramic log set, and
burner materials.
Electrical Hazard
If present, any three-prong grounded plug must be
plugged directly into a properly grounded three-
prong receptacle. Do not cut or remove the
grounding prong from any plug or otherwise attempt
to circumvent the grounding protection provided with
the unit. The Bristol must be electrically grounded in
accordance with local codes, or in the absence of
local codes, with the National Electrical Code,
ANSI.NFPA 70 in the U.S. or CSA C22.1 Canadian
Electrical Code in Canada.
Do Not Light Pilot or Burner by Hand
The pilot light on this gas heater is lit using an
electronic ignition module as described elsewhere in
this manual. Never attempt to light the pilot or main
burner by hand with a match or lighter.
Mobile Home Installations
This appliance may be installed in an aftermarket
permanently located, manufactured (mobile) home,
where not prohibited by local codes. (Cet appareil
peut être installé dans un maison préfabriquée
(mobile) déjá installée á demeure si les réglements
locaux le permettent.

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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Proflame 2 Control System & Features
NOTE: OPEN DOOR UNDER THE ASH LIP AND DROP DOWN THE MODESTY PANEL FOR ACCESS TO
ELECTRICAL AND GAS CONNECTIONS.
Bristol DX 8762 Model Overview
Proflame 2 GTMFS System
The Proflame 2 GTMFS is a modular remote control
system that directs the functions of the Bristol. The
Proflame 2 GTMFS System is configured to control
the on/off, main/split burner operation, its flame
levels, and provides Manual and Smart thermostatic
control of the hearth appliance. The system controls
two remotely actuated 120V/60Hz power outlets. The
Fan outlet controls the fan speed through six levels,
and the Auxiliary outlet either on or off. There is also
an additional constantly powered 120V/60Hz outlet.
The system has battery backup power for burner
operation and control during power outages (see
page 9 for specifications).
Figure 1 - Proflame 2 Remote Transmitter
Remote Transmitter
The Bristol comes equipped with a thermostatic
remote control transmitter. The easy to read LCD
display shows all functional abilities as well as a
childproof lockout and low battery indicator. It
displays room temperature readout, set temperature
readout and function status. The remote transmitter is
powered by three 1.5 volt AAA batteries. A Mode Key
is provided to index between the features and a
Thermostat Key is used to turn on/off or index
through thermostat functions.
Figure 2 –Proflame Receiver
Back-up Battery Holder- On/Remote/Off
Switch
The back-up battery holder is powered (6V DC) by
the Control Board and uses four 1.5 volt AA type
batteries for backup during power outages. The slider
switch is set to one of three positions: ON (Manual
Override), REMOTE (Remote Control) or OFF. The
ON selection turns the valve on (to high), and
activates the split flow setting last used if the Remote
becomes inoperative.
Figure 3 –Proflame 2 Fan Control Module
Proflame 2 Control Board
This is the command center for the appliance. The
Control Board allows the pilot to run in the
Intermittent (IPI) mode or the Constant (CPI) mode.
The pilot mode can be toggled between IPI and CPI
via the remote control. The Control Board signals the
burner to light or shut down and provides the ignitor
with the electricity needed for sparking. It is the main
power supply for the entire system when 120V power

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
9
is available or by the batteries in the Back-up Battery
Holder during a power outage.
The Control Board is equipped with a three-prong
(grounding) plug for protection against shock hazard
and should be plugged directly into a properly
grounded three-prong receptacle. Do not cut or
remove the grounding prong from the plug.
SIT Modulating Gas Valve
The remote transmitter can modulate the valve and
the flame to 6 different settings between high and
low. You can modulate the flame via the remote
yourself or by setting the remote control to the Smart
Thermostat modulation mode. Smart mode means
that as the room temperature approaches the limit set
for shut down the valve will automatically gradually
step down the flame height. The reverse happens
when the room cools - the valve will automatically
gradually increase the flame height.
SIT Split Burner Solenoid
The remote transmitter can toggle between dual
burner, and single burner mode (35,000 Btu/hr or
12,000 Btu/hr).
Pilot Assembly
The pilot assembly consists of a pilot hood, sensor
rod, and ignitor. The ignitor sends a spark to the pilot
hood which ignites the gas and lights the pilot. With
the pilot lit the sensor rod is engulfed by the flame,
flame rectification occurs and the appliance remains
lit. If the sensor does not stay engulfed by the flame
the main burner will not light and the pilot will shut
down.
Figure 4 - Proflame GTMFS Component Specifications

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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Control Functions
Pilot Mode
Continuous Pilot (CPI): Running the Bristol 8762 in CPI mode will keep your pilot on even when the thermostat
does not call for heat and when the burner is not lit. This is an advantage in cold climates or under windy
conditions. The “standing pilot” helps to keep the venting warm and generate some draft within the system. The
standing pilot also keeps the firebox warm –greatly minimizing, or eliminating condensation formation on the
glass during startup. The ignitor will automatically spark whenever the pilot mode is switched to CPI, regardless
of the position of the receiver switch. Hearthstone recommends the use of the CPI mode during the heating
season.
Intermittent Pilot (IPI): Using the IPI mode is a more efficient use of fuel as the pilot only ignites when the
thermostat calls for heat.
To switch back and forth between the two pilot modes 1) Press the OFF button on the remote 2) Press the
Mode button on the remote. 3) Press Up or Down on the center pad to toggle back and forth between the two
modes.
Back –up Battery Holder- On/Remote/Off Switch
The Back-up Battery Holder is normally powered by the Proflame 2 Control Board or by four 1.5V AA batteries
during a power outage. This On/Remote/Off switch can be set to three different positions:
On: Manual override allowing the valve to function and ignite the burner without the remote transmitter. The
ignitor will spark automatically.
Remote: Remote Transmitter controls all functions of components.
Off: Turns off the stove. If CPI mode is selected, pilot will remain lit.
PRG Key: Used to synchronize the Transmitter and Receiver initially, and after each battery change (see page
35).
Figure 5 - Receiver Detail

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
11
Remote Transmitter
Figure 6 - Remote Transmitter Function Keys (remote color may differ from shown)
ON/OFF Key: Controls the insert.
Thermostat Key: This is the function that sets either
the Manual or Smart thermostatic control.
UP/Down Arrow Key: Adjusts the thermostat
temperature range, flame settings, split flow, and fan
speed.
Mode Key: Toggles through the component to be
controlled (split flow burner, blower or auxiliary
outlet)
The transmitter features a user-friendly layout with a
Blue LCD Screen for easier viewing.
See the instructions provided with the remote for
more operation details.
Figure 7 - Remote Transmitter Display Data

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
12
Specifications
LISTED:Gas-Fired Direct-Vent Fireplace Heater
Model: Bristol Direct-Vent Gas Fireplace
Heater (8762)
Testing Agency: Intertek Testing Services
NA, Inc. (ITS)
Tested to: ANSI Z21.88-09, CSA 2.33-09,
CAN/CGA2.17-M91
Certified for Canada, CSA P.4.1-02
Approved for Mobile Home Installation (see
page 7)
Certified for use by:
Board of State Examiners of Plumbers & Gasfitters
100 Cambridge Street, Room 1511
Boston, MA 02202
www.mass.gov
Figure 8 - Model 8762 Dimensions (Inches)
Specification
NG
LP
INPUT RATING (Btu/hr) 0-2000 ft (0-610 m)
36,000
33,000
INPUT RATING (Btu/hr) 2000-4500 ft (610-1370 m)
35,000
30,000
MAXIMUM OUTPUT (Btu/hr) 0-2000 ft (0-610 m)
28,200
26,200
MINIMUM INPUT (btu/hr) 0-2000 ft (0-610 m)
16,000
10,000
ORIFICE SIZE (DMS) 0-2000 ft (0-610 m (front/rear))
43/46
54/57
ORIFICE SIZE (DMS) 2000-4500 ft (610-1370 m (front/rear))
43/47
55/59
MANIFOLD PRESSURE - (in. W.c./kpa)
3.5/0.87
10.0/2.48
MANIFOLD PRESSURE - Low setting (in. W.c./kpa)
1.1/.027
6.4/1.59
INLET PRESSURE - MINIMUM (in.w.c./kpa)
5.0/1.25
12.0/2.99
INLET PRESSURE –MAXIMUM (in. w.c./kpa)
7.0/1.74
13/3.22

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
13
Installation Preparation
Codes
Adhere to all local codes or, in their absence, the
latest edition of THE NATIONAL FUEL GAS CODE
ANSI Z223.1 (NFPA 54) or CAN/CGA B149 (Installer
l’appareil selon les codes ou règlements locaux, ou,
en l’absence de tels règlements, selon les Codes
d’installation CAN/CGA-B149.)
Installation Codes can be obtained from:
AMERICAN NATIONAL STANDARDS
INSTITUTE, INC.
1430 BROADWAY
NEW YORK, NY 10018
www.ansi.org
NATIONAL FIRE PROTECTION ASSOCIATION,
INC.
BATTERY MARCH PARK
QUINCY, MA 02269
www.nfpa.org
The appliance when installed must be electrically
connected and grounded in accordance with local
codes or, in the absence of local codes, with the
current NFPA 70-National Electrical Code or CSA
C22.1-Canadian Electric Code.
A manufactured home (mobile) OEM installation must
conform to the Manufactured Home Construction and
Safety Standard, Title 24 CFR, Part 3280 (U.S.) or
Standard for Manufactured Home Installation,
ANSI/NCBCS A225.1 or Standard for Gas Equipped
Recreational Vehicles and mobile Housing, CSA
Z240.4.CAN/SCA Z240 MH (Canada). (Installer
l’appareil selon les codes ou règlements locaux, ou,
en l’absence de tels règlements, selon les Codes
d’installation CAN/CGA-B149.)
This appliance is equipped for use at 0 to 2000 feet
(0-610 meters) altitude. (Cet appareil est equipè pour
des altitudes compries entre 0 et 2000 pieds (0-610
m) seulement.)
WARNING: DO NOT INSTALL OR USE THIS
APPLIANCE IF ANY PART WAS SUBMERGED
UNDER WATER. IMMEDIATELY CALL A
QUALIFIED SERVICE TECHNICIAN TO INSPECT
THE HEATER AND TO REPLACE ANY PART OF
THE CONTROL SYSTEM AND GAS CONTROL
THAT WAS UNDER WATER. (NE PAS SE SERVIR
DE CET APPAREIL S’IL A ÉTÉ PLONGÉ DANS
L’EAU, COMPLÈTEMENT OU EN PARTIE.
APPELER UN TECHNICIEN QUALIFIÉ POUR
INSPECTOR L’APPAREIL ET REMPLACER TOUTE
PARTIE DU SYSTÈME DE CONTRÔLE ET TOUTE
COMMANDE QUI ONT ÉTÉ PLONGÉS DANS
L’LAU)
Items Required for Installation
Approved venting
External regulator (for propane (LP) only)
LP conversion kit (not included, for propane
only))
Piping which complies with local codes
Pipe sealant approved for use with
propane (LP) (resistant to sulfur compounds).
Manual shutoff valve
Sediment trap (see page 26)
120 volt electrical service
Pipe wrench
Phillips head screwdriver
7/16-inch wrench
3/16” hex wrench
Other parts as required by local code
Safety Glasses
Gloves
Packing List
1- Bristol DX 8762 Gas-Fired Heater
1- Owner’s Packet Envelope (manual, warranty card)
5- Decorative Ceramic Logs (in box on pallet)
1- Blower Assembly (on Stove)
4- ¼ x 20 x 1” Leg leveling screws
1- Accessory Box (on pallet) containing:
1- Remote Control w/batteries
1- Package of four AA Batteries
1- Bag of Platinum Bright Embers
1- Enamel Touch-up Paint (if applicable)
2- Orifice Gaskets and Instructions
Note: Vent kits and components are supplied
separately. Failure to use the venting
components approved by Hearthstone for this
appliance will void your warranty.
Unpacking and Inspection
Hearthstone packages your Bristol to withstand
normal shipment without damage. However, damage
can still occur during transit. Take care to inspect for
damage when unpacking and installing the unit.
DO NOT INSTALL, OR PUT INTO SERVICE, A
DAMAGED OR INCOMPLETE HEATER.
Remove the shrink-wrap and other packaging
materials taking care not to damage the stove’s
finish. Inspect the Bristol for visible or concealed
damage. The unit should be square and true. Any
sheet metal parts should be smooth and free of
bends and dents. Any enameled cast iron should be
free of chips or cracks. If visible or concealed

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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damage is found or suspected, contact your dealer
for instructions.
Always use gloves and eye protection when handling
the decorative ceramic fire logs, and burner. Use
care when handling these parts as they are fragile
and subject to damage and breakage if handled
roughly.
See the firebox access instructions on page 15 and
remove the log set. Unpack and inspect the logs for
damage. Inspect the ceramic burner. Open the other
boxes and inspect the components. If log, burner, or
any other component damage is encountered,
contact your dealer for a replacement. Otherwise, set
the logs and other components aside until called for
during the installation.
Dismounting from Pallet
With the accessory boxes removed and set aside,
remove the 4 lag bolts and clips that fasten the unit to
the pallet (see figure 10). Take care not to mar or
chip the stove’s finish.
Have someone help lift the stove up and off the
shipping stands and pallet, taking care to avoid
damaging components mounted under the stove.
Figure 9 –Shipping Clip Detail
Leg Leveler Screws
If your hearth surface in uneven, or is not level, you
can use the four provided leveling screws.
1. Completely remove the four carriage bolts
used for shipping the stove.
2. Replace them with the ¼ x 20 x 1” oval tip
set screws provided in the packing kit.
3. Install the leveling screws down through the
flanges on the feet (hex end up).
4. Adjust the screws only enough to keep the
stove from rocking or wobbling*.
*On thinner hearths, or hearth pads, adjusting the screws so the
entire stove’s weight is solely supported on them can cause
damage to your hearth.
Shipping Stand
Carriage Bolt
Lag
Bolt
Clip

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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Firebox Access
1. First, remove the top of the stove (lift off). Set
carefully aside on a soft surface.
2. Lift the front panel slightly to disengage the tangs
at its top –tilt the front toward you slightly and lift
it up out of the bottom slots and set aside on a
soft surface.
Figure 10 –Front Panel Mounting Tang Detail
Figure 11 –Front Panel Retaining Slots
3. If installed, remove the front screen by lifting it off
the glass frame.
4. Pull forward and disengage the spring clips
securing the top of the glass frame. See Figure
14. Tilt the top of the glass frame outward and lift
it off the studs on the bottom –set carefully
aside.
Figure 12 –Glass Spring Clip Detail
5. Lift glass frame off the lower mounting pins.
Figure 13 - Lower Mounting Stud/Spring Detail
See page 28 for log set installation. Reinstall
components by reversing the previous steps.
Ensure you slide the lower glass frame tangs
behind the spring keepers. If desired, you need
not reinstall the optional screens.

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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Clearances to Combustibles
Note: Ensure clearances are in accordance
with local installation codes and the
requirements of the gas supplier.
Clearance to Combustibles
Due to high surface temperatures, locate the unit out
of traffic areas and away from furniture and
draperies. Do not place clothing and other
flammable material on or near the heater. When
positioning the unit always maintain adequate
clearances around air openings into the combustion
chamber and allow for adequate ventilation.
Minimum clearances to combustibles must be
maintained as shown in Figures 15 - 17.
Note: The rear clearance to combustibles is
determined by either the unit’s or the vent pipe’s
minimum clearance, depending on whether the
installation calls for vertical rise within the room or a
rear exit, through-the-wall vent pipe.
Ensure you consider the need for access to the gas
control valve access door on the front of the unit as
well as full access for periodic cleaning and
servicing. Also consider clearance for the blower
assembly if present, or planned in the future.
CAUTION: THESE CLEARANCES REPRESENT
MINIMUM DISTANCES IN ALL CASES, WHICH,
THROUGH TESTING IN AN INDEPENDENT
LABORATORY TO ANSI AND CSA STANDARDS,
WILL PREVENT FIRE OR SPONTANEOUS
COMBUSTION. WE DO NOT CONTROL THE
COMBUSTIBLE MATERIALS EXPOSED TO HEAT
BY THIS PRODUCT; THEREFORE, AN
ASSESSMENT MUST BE MADE BY THE
INSTALLER TO PREVENT CONSEQUENTIAL
DAMAGE OF WALLS AND FLOORING.
Hearth Requirement/Floor
Protection
You can place the Bristol directly on any non-
combustible surface or on a wood floor. When
placing the Bristol on any other type of combustible
surface you must install a panel made of metal,
wood, stone, or glass under the appliance. The
panel must extending the full width and depth of the
appliance. Installations must meet all local codes.
Figure 14 - Minimum Wall Clearances
Figure 15 - Horizontal Vent Mantle Clearance

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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The corner clearance for the Bristol 8762 is 11”,
measured from the edge of the top castings, to the
adjacent wall.
Figure 16 - Corner Clearance

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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Venting Information
Venting Components
Starter collar is installed by Hearthstone.
Use the following instructions along with the pipe
manufacturer’s instructions to complete the
installation. Do not mix vent components from
different manufacturers within the same venting
system.
Approved Venting Manufacturers
The Bristol Direct Vent (8762) is approved for
installation only with the venting components
provided by manufactures listed on this page.
Simpson Dura-Vent, Inc.
P.O. Box 1510
Vacaville, CA 95696-1510 800-835-4429
American Metal Products (AmeriVent)
8601 Hacks Cross Rd.
Olive Branch, MS 38654 800-423-4270
Selkirk Corporation
1301 W. President George Bush Hwy, Suite 330
Richardson, TX 75080-1139 800-992-8368
Security Chimneys International Ltd (Secure Vent)
2125 Monterey, Laval, Quebec
Canada, H7L 3T6 450-973-9999
ICC, Inc.
400 J-F Kennedy, St. Jerome, Quebec
Canada, J7Y 4B7 450-565-6336
Metal-Fab, Inc.
P.O. Box 1138
Wichita, Kansas 67201 316-943-2351
Venting Terminations
The Bristol cannot be vented jointly with any other
solid fuel or gas appliance. It must be vented directly
to the outside of the building using a proper
termination as listed in this manual. After
determining the venting configuration for your stove,
select the vent system that will best accommodate
your installation.
CAUTION: ENSURE ALL STOVE AND
TERMINATION CAP CLEARANCES ARE
OBSERVED PER THIS OWNER’S MANUAL.
CAUTION: ENSURE THERE IS NO WIRING OR
PLUMBING IN THE CHOSEN LOCATION.
CAUTION: DO NOT RECESS VENTING
TERMINALS INTO A WALL OR SIDING.
Approved Venting Configurations
WARNING: IN HIGH WIND AREAS AND
PARTICULARLY COLD CLIMATES IT MAY BE
NECESSARY TO HEAT YOUR VENT SYSTEM
WITH THE PILOT PRIOR TO IGNITION OF THE
MAIN BURNER. IN THESE INSTANCES IT IS
RECOMMENDED THAT YOU LEAVE THE PILOT
RUNNING FOR 5 MINUTES PRIOR TO IGNITING
THE MAIN BURNER. THIS WILL ALLOW FOR
PROPER START UP AND IGNITION OF ALL
PORTS ON THE BURNER.
There are two types of venting configurations
approved for use with this appliance:
Vertical Venting/Vertical Termination
Vertical Venting/Horizontal Termination
Pipe Clearances to combustibles:
1" to vertical runs
1" below and to the side of horizontal runs
2" from the top of horizontal runs
Vertical Venting and Termination
The Bristol 8762 is approved for venting vertically
through a roof or ceiling. When installing a vertical
vent and/or vertical terminations you must adhere to
the following requirements:
When terminating vertically you must have at
least 10’ of vertical pipe.
The restrictor must be in the closed position
above 10' vertical vent length.
Always maintain a minimum of 1” clearance from
all sides of the vent system to any combustible
material.
A listed fire stop is required at any floor
penetration. The opening must be framed in
according to the venting manufacturer’s
instructions.
Steep roofs, nearby trees, or predominantly
strong windy conditions can promote poor draft
or down draft conditions. In this event, an
increase to the height of the vent may improve
performance.
A maximum of two 90⁰or four 45⁰elbows may
be used in vertical terminations. Whenever
possible use 45⁰elbows instead of 90⁰elbows
as they offer less restriction to the flue gases.
Vertical terminations may require additional
restriction in order to perform as intended.
Please refer to Figures 22 - 24 to adjust your
vent restrictor accordingly

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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All termination caps must be no less than 18”
(457mm) horizontally from any roof or vertical
surface. See Figure 18.
The termination must fall within the chart in
Figure 24.
The maximum vertical run is 35’
The minimum vent/air intake termination clearances
above the high side of an angled roof are as follows:
Roof Pitch
Feet
Meters
Flat to 6/12
1
0.3
7/12 to 9/12
2
0.6
10/12 to 12/12
4
1.2
13/12 to 16/12
6
1.8
17/12 to 21/12
8
2.4
Figure 17 - Termination Cap clearances
Prefabricated & Fireplace Chimney
Installations
The Bristol 8762 is approved for use with direct vent
chimney conversion kits in masonry or prefabricated
solid fuel listed chimneys. The following installation
requirements must be followed:
The termination must fall within the chart shown
in Figure 24.
In a masonry chimney, a fireclay liner or listed
steel liner, must be present the entire length of
the chimney.
The maximum vertical length of vent is 35’.
The liner must have an inside dimension or
diameter 6” or greater.
Prefabricated chimneys must be UL103 or ULC
S-629 listed and have a minimum INSIDE
diameter of 6”. Prefabricated chimneys must be
listed for the specific manufacturer’s conversion
kit.
The use of an existing chimney as an air intake is
not listed under the ANSI Z21.88-09-CSA 2.33-09
test methods; this installation has been tested and
approved by Intertek Testing Services with an
appropriate test. The code authority having
jurisdiction must be consulted prior to proceeding
with this installation method. See examples below.
Figure 18 –Existing Chimney Venting Options

Hearthstone Quality Home Heating Products, Inc. Bristol DX Model 8762
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Horizontal Termination
The termination must fall within the area shown
in Figures 18 & 20.
A minimum of 36" rise is required either directly
off the heater or with the use of a minimum of a
36” snorkel.
Use a vinyl siding Stand-Off when installing
against vinyl siding. The termination cap must
not be recessed into the wall or siding. Do not fill
air spaces with any type of insulation material.
A minimum 10” x10” square hole is necessary
for proper pipe clearance through a wall,
provided the vent is positioned to maintain 2”
minimum clearance at the top. A 1” minimum
clearance must be maintained to combustible
materials around the other sides.
All horizontal terminations must also comply with
the clearance specifications to adjacent
structures outlined in Figures 18 and 20.
Horizontal sections require a 1/4" rise every 12"
of horizontal run.
NOTE: For each 90 0 elbow after 2, remove 5' from
the allowable horizontal run. For Canadian
installations: remove 4' from the allowable
horizontal run.
At the minimum vertical rise of 36”, maximum
horizontal run is 3’. (If a 36” snorkel termination
is used a maximum horizontal run of 3’ is also
applicable.)
WARNING: FAILURE TO USE ONLY PARTS
SPECIFICALLY APPROVED FOR USE WITH THIS
APPLIANCE MAY RESULT IN PROPERTY
DAMAGE OR PERSONAL INJURY.