Bennington(Model 8350)

Woodstove
OWNER'S MANUALINSTALLATION & OPERATING
INSTRUCTIONSREAD THIS ENTIRE OWNER’S MANUAL BEFORE YOU INSTALL AND USE YOUR NEW
BENNINGTON WOOD STOVE.
To reduce the risk of fire, follow the installation instructions. Failure to follow these
instructions may result in property damage, bodily injury, or even death.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE!
CONTACT LOCAL AUTHORITIES HAVING JURISDICTION (BUILDING DEPARTMENT or
FIRE OFFICIALS) ABOUT PERMITS REQUIRED, RESTRICTIONS, AND INSTALLATIONINSPECTION IN YOUR AREA.

Bennington Model: 8350
Manual: 6400-4041
Revised: 7/28/2011

Hearthstone Quality Home Heating Products Inc ®

Bennington Model 8350

Intentionally Blank

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Bennington Model 8350

Table of Contents
INTRODUCTION ..................................................................................................................... 1
CODES ................................................................................................................................................................. 2
SAFETY INFORMATION ........................................................................................................................................... 2
PERIODIC CHECKLIST ............................................................................................................................................ 3

SPECIFICATIONS .................................................................................................................. 4
INSTALLATION ...................................................................................................................... 6
UNPACKING........................................................................................................................................................... 6
INSTALLING YOUR STOVE ...................................................................................................................................... 6
HEARTH REQUIREMENTS AND FLOOR PROTECTION ................................................................................................ 6
FABRICATING A HOMEMADE FLOOR PROTECTOR..................................................................................................... 7
OUTSIDE AIR SUPPLY ............................................................................................................................................ 7

VENTING COMPONENTS AND CONFIGURATION ............................................................ 11
CONNECTING YOUR WOOD STOVE ....................................................................................................................... 12
INSTALLING IN A MOBILE HOME ............................................................................................................................ 15

OPERATION ......................................................................................................................... 16
CONTROLS AND FEATURES.................................................................................................................................. 16
CHOOSING FIREWOOD ......................................................................................................................................... 17
BUILDING A FIRE ................................................................................................................................................. 18
BREAKING IN YOUR WOOD STOVE ....................................................................................................................... 18
MAINTENANCE ................................................................................................................................................ 20
TROUBLESHOOTING...................................................................................................................................... 22
TROUBLESHOOTING GUIDE .................................................................................................................................. 24
REPLACEMENT PARTS & OPTIONAL ACCESSORIES ................................................................................................ 25
SAFETY & RATING LABEL ..................................................................................................................................... 26

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Bennington Model 8350

Introduction
Congratulations! You have just invested in a mostunique wood burning stove – the Bennington Wood
Burning Stove from Hearthstone Quality Home
Heating Products Inc®. The Bennington Model 8350 is a clean burning EPA certified, non-catalytic
wood burning stove. At 2.5 cubic feet capacity and3.5 grams per hour particulate emissions you can beproud to join the Hearthstone family with our PremierCast Iron Wood Burning Stove. The generous
firebox depth allows for loading of wood through thefront door up to 19 inches long, and the side door
allows for wood up to 22 inches long!

Keep furniture, drapes, curtains, wood, paper, andother combustibles far away from the stove. Neverinstall the stove in a location where gasoline,
kerosene, charcoal lighter fluid or other flammableliquids are used or stored.
Locate the stove centrally in your living area to allow
the heat to travel naturally to distant rooms. We
recommend that you do not locate your stove in an
uninsulated basement.
The amount of radiantenergy required to heat concrete basement walls is
so great that most of the usable heat is absorbed bythem and lost.

Unlike most Cast Iron Wood Stoves, your
Bennington Wood Stove is a convective stove withthe outer walls separated from the firebox by an air
space. You will get “convective” air currents throughyour stove, which reduces surface temperatures
while providing more heat. The Bennington is the
only cast iron, convective heater with a 12-pound
cast iron heat exchanger.

SAFETY NOTICE: A HOUSE FIRE MAY RESULT IF
THIS STOVE IS NOT INSTALLED PROPERLY.
FOR YOUR SAFETY, CAREFULLY FOLLOW THE
INSTALLATION DIRECTIONS. CONTACT LOCALBUILDING
OR
FIRE
OFFICIALS
ABOUT
RESTRICTIONS AND INSTALLATION INSPECTION
IN YOUR AREA.

The performance of your stove depends on many
variables. Since all installations are unique, thegeneral information and operating procedures
presented here can only serve as useful guidelines
rather than hard and fast rules. Should you haveany questions, do not hesitate to contact your dealer
for additional information.

Your purchase ensures years of clean, comfortable
heat with minimal maintenance. You will receive thebenefits of the most advanced technology in woodburning without the cost and maintenancerequirements of a catalytic stove. The Bennington
blends modern technology with the unique beauty ofcast iron. We trust that you will appreciate thequality of our handcrafted product.

Validate your warranty - return your warranty
registration card to Hearthstone within 30 days ofpurchase. Once your warranty is validated byreturning your warranty card, contact your dealer for
any necessary warranty service.

Please read this manual in its entirety. Its purpose
is to familiarize you with your stove's safe
installation, proper break-in, operation andmaintenance. It contains information that will be
useful to you now and in years to come, so keep it
handy and refer to it as needed.

This stove is manufactured and warranted by:Hearthstone Quality Home Heating Products
Inc®
317 Stafford Ave.
Morrisville, VT. 05661
www.hearthstonestoves.com

Use these instructions as well as national, state, andlocal building codes to install your stove. Be sure to
maintain the designated stovepipe and stoveclearances to walls, ceilings, hearth, and othercombustible surfaces. This will help reduce the riskof fire. Failure to follow these instructions can resultin property damage, bodily injury, and even death.
Locate your stove in a safe, convenient, open area;
away from traffic flow, doors, and hallways; and neara chimney and chimney connector. Review theproper clearance measurements from combustible
surfaces. You can safely reduce required clearances
in most cases with a special connector pipe andspecial wall coverings as specified by this manual,
the NFPA 211 codes, and your local authorities
having jurisdiction.

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Bennington Model 8350

Ensure the removable ash lip is in place while
using the stove. If the ash lip is not installed
properly, the hearth surface may exceed safe
temperatures.

CODES
When you install your Bennington wood stove, it isimperative that you adhere to all local codes, which
can be obtained from either of the following two
National sources:

Follow these safety precautions:
Never modify this stove in any way, especiallythe primary air control system.

American National Standards Institute, Inc. (ANSI)
1430 Broadway
New York, NY 10018

Never burn kiln dried wood, painted or treatedwood, solvents, trash, plywood, colored or
glossy paper, artificial logs, cardboard, coal,garbage or driftwood. Especially, do not burncoal in this stove.

National Fire Protection Association, Inc. (NFPA)
Battery March Park
Quincy, MA 02269

Never use gasoline type fuel, kerosene,
charcoal lighter fluid, or other liquid fuels or solid
fire starters to start or invigorate the fire. These
fuels can possibly generate carbon monoxidethat can sap the supply of oxygen. Keep allsuch materials away from the stove.

If you are installing your Bennington in a mobile
home, follow the guidelines described in the
Manufactured Home Construction and Safety
Standard, Title 24 CFR, Part 3280 (United States).

SAFETY INFORMATION

Never use the stove if the ash pan door is open,
damaged, or not in place, or not sealing.

Read and understand this Owner's Manual
thoroughly before installing and using thisstove.

Never use a wood grate or other device toelevate the fire.
Do Not allow logs to rest against or otherwise
come in contact with the glass when the door isclosed.

Ensure you install your stove:
According to the manufacturer's
recommendations.

Do Not slam the door or use the door to force
wood in to the stove.

In accordance with all applicable codes.
With the proper sized chimney.

Never over-fire your stove. (See page 19)

When using your stove:
Warn children and others unfamiliar withwoodstoves of the danger of touching hot,radiating surfaces of your stove. For youradditional safety, obtain hearth and stove guards
through your local dealer.

Never put articles of clothing or candles on a hot
stove.
Do Not connect the stove to a flue that isserving another appliance. (See page 11)
Other safety guidelines
Keep all combustible items such as furniture,drapes, clothing, and other items, at least 36"(0.92 m) from the stove (See page 8)

Follow recommended break-in procedure as
outlined in this manual.
Burn natural wood only. Higher efficiencies andlower emissions result when burning air-dried,seasoned wood, as compared to green or
freshly cut wood.

Install a smoke detector, preferably in an area
away from your wood stove.
Keep a fire extinguisher handy. We recommend
the type rated "A B C."

Use caution when loading firewood into a hot
stove.

Dispose of ashes properly. (See page 20)

Keep the side and front doors closed at all times
except when loading wood.

Keep children and pets away from the stove;
they could be burned by touching a hot stove.

Keep the ash pan tray fully inserted and the ashdoor closed tightly.

Clean your chimney system as needed. (Seepage 20)

Inspect the stovepipe, chimney connector andchimney, as recommended.

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Bennington Model 8350

TEMPERATURE ASSOCIATED WITH SUCH FIRESCAN CAUSE INSTANTANEOUS STEAM AND
SERIOUS BODILY HARM.

PERIODIC CHECKLISTPerform each of these tasks at the specified
intervals.

Once the chimney fire has expired, leave the primary
air control closed and let the fire in the stove die out
completely. The stove should not be fired again until
the stove, stovepipe, and chimney are all thoroughly
inspected for any sign of damage. You must correct
any damage before using your stove again.

At the End of Every Week:
Empty ashes from the firebox and ash pan,sooner if the firebox or the ash pan begin to fillup.
At the Beginning of Every Other Month:
A visual inspection of the chimney connector
and chimney for creosote is recommended
depending upon your use of the stove. (Pleasesee page 17-Creosote Formation and Need For
Removal)Check door seals using the "dollar bill test." When the fire is out and the stove is cool, shutthe door on a dollar bill. If the bill pulls out
without any resistance, then your stove’s door
isn't sealed properly. To tighten the seal,change the door gasket. (Refer to page 17 –Gaskets)

WARNING: THIS STOVE IS ASSEMBLED WITH A
CERAMIC BAFFLE LOCATED DIRECTLY ABOVE
THE FIREBOX. THIS MATERIAL IS EXTREMELY
DURABLE, AND WILL LAST FOR YEARS IF
PROPER ATTENTION IS GIVEN TO IT. MAKE
SURE TO BE CAREFUL WHEN LOADING WOOD
INTO THE STOVE. DO NOT ALLOW WOOD TO
LIFT UP BETWEEN THE AIR PIPES AND DAMAGEOR FRACTURE THE CERAMIC BAFFLE. THISBAFFLE IS IMPORTANT TO THE PERFORMANCEOF THE UNIT.

HEARTHSTONE’S THERMO-CERAMIC BAFFLESYSTEMAt the End of Every Season:
Dismantle the chimney connector and clean it
thoroughly. Replace any pieces that show signsof rust or deterioration.
Inspect and, if necessary, clean your chimney.
Thoroughly clean out the inside of the stove.
Inspect all door gasket material and replace ifworn, frayed, cracked or extremely hard.

If you have a stovepipe or chimney fire, follow these
instructions:

To enhance the combustion efficiency and reduce
the emissions of the fire in your stove Hearthstone
has developed an advanced THERMO-CERAMIC
baffle system. This system uses a lightweight,
durable ceramic material above the burner tubes tomaintain the high temperatures in the secondary
combustion area and maintain the low emission –high efficiency combustion you desire. This newtechnology will not corrode, rust dissolve or lose its
strength, however it is vulnerable to puncture orcracking due to rough handling.

1. If the fire is too threatening, leave the area andcall the fire department immediately! If not,perform the next three steps.

Please exercise care when loading wood orcleaning your stove, not to damage thethermo-ceramic baffle

EMERGENCY PROCEDURES

2. Close the primary air control.

Located directly above the burner tubes in thefirebox, this white sheet of material will break if woodor cleaning brushes impact it. Be careful whenloading and cleaning your stove to not break thismaterial. If this piece has been fractured or a hole ispunctured, it will cause the stove to function
improperly. You must replace the board through aqualified HearthStone dealer.

3. Close the stovepipe damper (if present).
4. Keep the stove front, side and ash doors closed!
WARNING: DO NOT ATTEMPT TO PUT OUT ASTOVEPIPE OR CHIMNEY FIRE BY THROWINGWATER ONTO THE STOVE, STOVEPIPE, OR
CHIMNEY.
THE
EXTREMELY
HIGH

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Bennington Model 8350

Specifications
Heat Output:

70,000 BTUs maximum perhour of cordwood (based on
independent laboratory test
results).

Maximum Log Length. 19" (501 mm) - front door22" (571 mm) - side door
Height29-3/8" (74.6 cm)

Size Of Heated Area: Up to 2,000 square feet.

Width30-1/4" (76.8 cm)

Firebox Capacity:

Depth

22-1/8" (56.2 cm)

Front Door Size

19-3/4" wide x 11-3/4" high(501 x 298 mm)

Side Door Size

8" wide x 9" high 8" x 12"(203 x 228 mm)Stovepipe Size

6" (152 mm) diameter

Metal Chimney

6" (152 mm) inside diameter

Masonry Chimney

8" x 8" (203 x 203 mm)(square flue)

Flue Exit

Top or Rear Exit 90

Actual Weight

440 pounds

2.5 cubic feet (.071 cubic
meters) or 50 pounds ofwood (The amount andweight of wood contained
per cubic foot of firebox
volume can vary from 15 to
36 lbs. per cubic footdepending on type of wood,
moisture content, packing
density and other factors.
As a constant forcomparison and test
purposes, we are assuming
20 lbs. of seasoned
hardwood per cubic foot of
firebox volume).

Optional Equipment. Outside Air Adapter, Blower

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Bennington Model 8350

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Bennington Model 8350

Installation
UNPACKINGHEARTH REQUIREMENTS AND FLOORPROTECTION

Hearthstone Stoves packages your Bennington
stove with the greatest care so that it ships safely.
Under certain circumstances, however, damage canoccur during transit and handling. When you receive
your stove, unpack it carefully and inspect yourstove and all parts for damage. Also, make surethat all parts are included in the box. If any parts aredamaged or missing, please contact your dealer
immediately.

Install your stove on one of the following:
A *non-combustible floor, such as a slab,
cement, or stone hearth. (A noncombustible
floor will not ignite, burn, support combustion, or
release flammable vapors when subjected to fireor the anticipated heat from your stove.) *An
example of a non-combustible floor protector
would be a hearth constructed with a continuous
layer of a listed backer board (such as WonderBoard or Durock) used for ember protection witha tile, brick, slate, or another noon-combustible
facing.

INSTALLING YOUR STOVEFirst you must decide where your stove will reside.
After choosing an appropriate spot, inspect thislocation to make sure that the stove will haveenough clearance to combustible materials thatwould surround the stove. These combustibles
include walls, floor, ceiling, fireplace, and chimney.
You must carefully consider the clearances to all ofthese combustibles before actually connecting yourstove. When considering these clearances, alsodecide the kind of floor the stove will rest on.
Depending on your floor, you can install your stove
as it is, or use a floor protector.

A floor protector that you obtain from yourdealer. A floor protector is any noncombustible
surface laid on the floor underneath the stovethat extends, 16 inches -US (46 cm -CA) beyond
the front door, 16 inches -US (46 cm -CA)beyond the side door, and 8 inches (20 cm)
beyond each side of the fuel loading and ash
removal opening(s).
For placement of theBennington on carpeting, vinyl tile or othercombustible materials, the unit must be installed
on a non-combustible material extending the full
width and depth of the unit. Installation mustmeet local codes.

Use this section to plan how to locate your stove inyour particular location.
Consider both theclearances of the stovepipe and the stove itself tothe surrounding combustibles.

NOTE: When using a double-wall chimney
connector, the floor protection in front of theglass doors must have a minimum insulative
R-value of 0.9 (English units)or a composite(homemade) floor protector with an R-valueof 0.9 or more.

Read this chapter to obtain a sound understandingof how to properly install your stove.

CLEARANCES TO NFPA 211 PROTECTED
SURFACES
You can reduce the clearances to combustible
surfaces by using any National Fire Protection
Agency (NFPA) approved wall protection system.
Please refer to NFPA 211 for specifications andcomplete details.

Listed floor protectors come with various types of
specifications.
To convert a floor protector’s
specifications to an R-value, do one of the following:
If the R-value is given, use that value – noconversion is needed.

You can obtain this information directly from NFPA.

If a K-factor is given with a required thickness(T) in inches, use this formula: R-value = 1/K x
T

National Fire Protection Agency
Batterymarch Park
Quincy, MA 02269
1-800-344-3555
1-617-770-3000

If a C-factor is given, use the formula: R-value =1/C

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Bennington Model 8350½” Wonderboard
4” solid clay brickTotal R-value
Noncombustible Material
Gypsum or plaster board1
Wallboard, Wonderboard,or Durock1
Ceramic board (Fiberfrax
or Micor)1
Nominal solid clay brick1
Ceramic wall or floor tile1
Mineral wool insulation2
Cement mortar2
Horizontal still air2*

For horizontal chimney connector installations, thefloor protection must be installed beneath theconnector and 2” beyond each side.

Thickness½”½”

R-value
0.45
0.20

½”

1.10

1”
¼”
1”
1”
1/8”

0.20
0.01
3.12
0.20
0.92

*Note: You cannot “stack” horizontal still air toaccumulate R-values; you must separate each layerof the horizontal still air with another noncombustible
material

To determine the R-value of the proposed alternate
floor protector:

1

Use either the K-factor or the C-factor formula
explained above to convert specifications not
expressed as R-values.

2

According to Intertek Testing Services, Inc.
According to ASHRAE Handbook of Fundamentals 1977

OUTSIDE AIR SUPPLY

For multiple layers of floor protectors, simply add
the R-values of each layer to determine theoverall R-value.

You can connect an outside air source directly tothis stove using an outside air adaptor. The
advantage of providing outside air directly to thestove is that the air used by the stove for combustion
is taken from outside of the residence rather thanfrom within the room where the stove is located.

If the overall R-value of your setup is greater thanthe R-value of the specified floor protector, then yoursetup is acceptable.

With outside air supplied directly to the stove, drafts
within the room and air infiltration within the building
are reduced. Use of the outside air adaptor may
also improve stove performance in a particularly
airtight house. The outside air adaptor for this stoveallows for the direct connection of the stove's air
intake to a minimum 3" (76 mm) diameter duct
(supplied by others) which leads to the outside of thehouse.

FABRICATING A HOMEMADE FLOORPROTECTOR
You can make your own floor protector by stacking
together noncombustible materials from thefollowing table. Simply add together the listed Rvalues to attain the necessary requirements for
installing your stove.
The hearth pad or floor protector for the stove musthave minimum dimensions of 39" x 48" -US (107cm
x 127 cm-CA) and must be placed as illustrated
above. It must extend, 16 inches -US (46 cm -CA)beyond the front door, 16 inches -US (46 cm -CA)beyond the side door, and 8 inches (20 cm) beyond
each side of the fuel loading and ash removal
opening(s).

When considering placement of the duct from theoutside of the house to the hearth, keep in mind theneed to avoid structural members of the house. See
illustration for all connection options. Choose which
is most convenient.
Locate the termination of the duct on the outside
wall of the house in such a manner as to preclude
the possibility of obstruction by snow, leaves orother material. Screened the opening against
animals and insects.

To fabricate a floor protector for a wood floor with an
R-value of at least 0.9, consider the following
examples:¼” mineral wool insulation½” plaster board
Total R-value

0.20
0.80
1.00

0.78
0.45
1.23

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Bennington Model 8350

REAR
VIEW

ALCOVE CLEARANCE TO COMBUSTIBLESSTOVE CLEARANCE TO COMBUSTIBLESPARALLEL

SIDE
VIEW

SIDE
VIEW

CORNER

FRONT
VIEW

CLEARANCES TO COMBUSTIBLES********
Please use this section to plan the layout foryour stove. Consider clearance of pipe to
combustibles and stove to combustibles.
More specifics on installation follow.
********You must follow minimum clearances for theBennington stove to combustibles such as walls andceilings. You may reduce the general clearances if
installing the stove near Protected Surfaces (see
”CLEARANCES TO NFPA 211 PROTECTED
SURFACES” below and following diagrams).

FREESTANDING MINIMUM CLEARANCES TO COMBUSTIBLES (from closest point of stove)
Unprotected Surfaces
Protected Surfaces (NFPA 211)
ParallelCornerParallelCorner
Installation type
Side
Rear
Side
Rear
* R=18 in. (381
18 in.
13 in.
6 in.
9 in.
7 in.
single wall connector.mm)
L=12 in. (305 mm) (460 mm) (330 mm) (150 mm) (230-mm) (180-mm)* R=18 in. (381double wallmm)
16 in.
12 in.
6 in.
9 in.
7 in.
connector.
L=12 in. (305 mm) (405-mm) (305-mm) (150 mm) (230-mm) (180-mm)

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Bennington Model 8350

ALLOWABLE ALCOVE DIMENSIONS
Unprotected Surfaces
Protected Surfaces (NFPA 211)
Min. Height
Min. Height(stove to ceiling
Min.
Max.
Min.
Max.
Width
Depth
above.)
Width
Depth(stove to ceiling above.)
58 in.
38 in.
48 in.
43 in.
48-in.
24 in.
(1475
(1090
(1220
mm)
mm)
mm)
(965 mm)(1220 mm)
(610 mm)*With Kit #93-70500(Side Door Lock Kit) left side clearances can be used for the right side.

CLEARANCES FROM STOVEPIPE (Chimney Connector)
MINIMUM CLEARANCE TO COMBUSTIBLES (from Chimney Connector)
Connector type
Unprotected Surfaces
Protected Surfaces (NFPA 211)
16-in.
6-in.
Single wall connector pipe
380-mm
150-mm14-in.
6-in. **
Double wall connector pipe
205-mm
150-mm **(**SEE Manuf. Specs.)
similar concealed space. Where passage
through a wall or partition of combustible
construction is desired, the installation shallconform to NFPA 211 or CAN/CSA - B365.

DO NOT CONNECT THIS UNIT TO A CHIMNEYFLUE SERVING ANOTHER APPLIANCE
Single wall connector is 24 MSG or 25 MSG
blued steel stovepipe.

Double wall connector (close clearance pipe)
which must be used with a listed factory-built“Type HT" chimney and may also be used with amasonry chimney to reduce clearances, isavailable from several manufacturers, your dealer
can help you choose. Some air insulated
connector pipe models available are Simpson
Dura Vent DVL and Metalbestos DS. Security,
GSW and Ameritec also have acceptable close
clearance connector pipe.

When used in a mobile home, a spark arrester isrequired. (See page 15)Chimney connector shall not pass through floor
or ceiling, nor any attic or roof space, closet or9

It is very important to follow minimum clearances
for chimney connectors to combustibles such as
walls and ceilings when installing the stove nearnon-combustible surfaces. Typical chimney
connector clearances are outlined below. The
single wall

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Bennington Model 8350

clearances are generic; the Double wall
clearances are for Simpson Dura Vent DVL,CHECK THE SPECIFICATIONS FROM THE
MANUFACTURER OF YOUR CONNECTOR.

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Bennington Model 8350

Venting Components and Configuration
Do not use stovepipe as a chimney. Use stovepipe
for freestanding installations only to connect thestove to a proper chimney.

COMPONENTS OF A VENTING SYSTEM
The complete venting system consists of several
components: chimney connector, wall thimble, wallpass-through, chimney, and liner. It is absolutely
necessary that you install all of these components
within the clearances to combustibles discussed
earlier to install your stove safely.

INSTALLING A VENTING SYSTEM
Stovepipe sections must be attached to the stove
and to each other with the crimped end toward thestove. If creosote builds up, this allows the creosote
to run into the stove and not the outside of thestovepipe and onto the stove.

To protect against the possibility of a house fire, youmust properly install and constantly maintain theventing system. Upon inspection, immediately
replace rusted, cracked, or broken components.


The chimney connector is the stovepipe from thewoodstove to the chimney. The chimney
connector stovepipe must be 6" (152 mm)diameter, 24 MSG or 25 MSG blued steel
connector pipe. Do not use aluminum or
galvanized steel pipe - they cannot withstand theextreme temperatures of a wood fire.

A thimble is a manufactured (or site-constructed)
device installed in combustible walls throughwhich the chimney connector passes to thechimney. It keeps the walls from igniting. You
must use a wall thimble when installing achimney connector through a combustible wall
to the chimney.



Secure all joints, including attaching the stovepipe tothe stove's flue collar, with three sheet metal screws.
Install #10 x 1/2" (3 mm x 13 mm) sheet metalscrews into the holes pre-drilled in the flue collar.
Leaving off the screws can cause joints to separate
from the vibration that results from a creosotechimney fire.

You can simplify connecting stovepipe by using
additional accessories such as telescoping pipes,
slip-connectors or clean-out tees. These
accessories ease the inspection of your chimney, as
well as allow you to easily dismantle the stovepipe(without moving the stove) when you periodicallyinspection the stovepipe connection and chimney.

A wall pass-through (or chimney support
package) also keeps the walls from igniting.
You must use one when connecting through awall or ceiling to a prefabricated chimney.

Install the stove as close as practical to the chimney,
while maintaining all proper clearances. Install
stovepipe that is as short and as straight as
possible. Horizontal runs of stovepipe should
always rise away from the stove a minimum of 1/4"
per foot (21mm/m).

Only install this stove to a lined masonrychimney or an approved high temperature
prefabricated residential type building heating
appliance chimney. Do not connect this stove toa chimney serving another appliance; you willcompromise the safe operation of both the woodstove and the connected appliance.

Long runs of stovepipe to increase heat dispersal
are not recommended. Using longer lengths ofstovepipe or more connecting elbows thannecessary increase the chances of draft resistanceand the accumulation of creosote buildup.

▌ WARNING:

In general, you do not need to install a stovepipe
damper with the Bennington. Some installations,however, could benefit from a stovepipe damper,
such as a tall chimney which can create a higher
than normal draft. In such cases, a damper can help
regulate the draft. The Bennington requires a draft
between 0.06" wc and 0.1" wc. For drafts above
0.1" wc, install a stovepipe damper.

DO NOT CONNECT THIS APPLIANCE TO
ANY AIR DISTRIBUTION DUCT OR SYSTEM.


A liner is the UL 1777 or ULC S635 (for factorybuilt fireplace or masonry) chimney.

You must connect your stove to a chimney
comparable to those recommended in this manual.

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Remember, the NFPA has
recommended, minimum
clearances for chimney
connectors to combustibles
such as walls and ceilings.
Once the stove is installed atsafe distances from these
combustible surfaces, it isimportant to maintain theseconnector clearances for theremainder of the installation.

CONNECTING YOURWOOD STOVE
You can install your
Bennington to a prefabricatedmetal chimney or a masonrychimney.

Bennington Model 8350

Extended Roof
Support Bracket(Conduit
not included)

Chimnet Cap

Chimney Cap

Storm Collar
Storm Collar

Adjustable RoofFlashing

Adjustable RoofFlashing

Attic Insulation Shield
Firestop Radiation
ShieldTwist-Lock
Chimney Sections

Clay tile orother Liner

Chimney Sections

Firesafe Enclosure

Support Box and Trim
Collar with built-in

Stovepipe

Starter section

Masonry Chimney

Wall Thimble
Tee

Tee clean-out

Access door

Two story house installation with attic.

CONNECTING TO A
PREFABRICATED METALCHIMNEY

Chimnet Cap
Storm Collar
Adjustable RoofFlashing

When connecting theBennington to a prefabricatedmetal chimney, you must
follow, precisely, themanufacturer's installation
instructions. Use only TypeHT (2100 deg. F),
prefabricated metal chimneys
listed per UL 103 or ULC
S629 standards.

Chimney pipe through Clay tileor other Lined Masonry Chimney

Chimnet Cap
Storm Collar
Adjustable RoofFlashing

Chimney Sections

Insullation
ShieldChase Enclosure
Support Box
with built-in
Wall Strap

Starter
sectionStovepipe

Wall Thimble
Tee
Tee clean-out
Access door
Tee Support Bracket

Chimney through outer wall with enclosed chase.
Chimney is supported by Tee Support Bracket.

One story house installation with attic.
Chimney is supported by Ceiling.

draft and performance. You can use an 8" (203 mm)diameter existing flue with a reducer. An oversizedflue contributes to creosote accumulation. (In thiscase, bigger is NOT better.)▌ WARNING:
DO NOT CONNECT THE STOVE TO A
CHIMNEY FLUE SERVING ANOTHERAPPLIANCE.

When purchasing a prefabricated chimney to installwith your stove, be sure to also purchase from thesame manufacturer the wall pass-through (or ceilingsupport package), "T" section package, fire-stops(when needed), insulation shield, roof flashing,chimney cap, and any other needed accessories.
Follow the manufacturer’s instructions when

Make sure the size of the chimney’s flue isappropriate for the Bennington. The Bennington
requires a 6" (152 mm) inside diameter flue for new
installations. A 6” diameter flue provides adequate

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installing the chimney and accessories. In addition,
be sure to maintain all manufacturers’
recommendations for the proper clearances to thechimney.
There are basically two ways to install aprefabricated metal chimney: An interior installation where the chimney
passes inside the residence through the ceilingand roof.
An exterior installation where the chimney
passes through the wall behind the stove
then up the outside of the residence.

Whenever possible, choose an interior chimney. Aninterior chimney heats up more quickly and retains
its heat; thus promotes a better draft anddiscourages the formation of creosote. An exteriorchimney does not benefit from the warmth of being
surrounded by the building, so it typically operates atlower flue temperatures than an interior chimney.
An exterior chimney’s draft is not as strong and may
experience increased creosote accumulation.

CONNECTION TO A MASONRY CHIMNEY
Consider two primary elements when connecting
your stove to a masonry chimney: the chimney itself
and the thimble where the stovepipe connects to thechimney.

Use the following checklist to ensure that yourmasonry chimney meets these minimum
requirements:

Use only Code approved masonry chimneys with aflue liner. Before connecting to a masonry chimney,hire a professional to examine the chimney forcracks, loose mortar, and other signs of deterioration
and blockage. If the chimney needs repair,complete them before installing and using yourstove. Do not install your stove until the chimney issafe for use.

Chimney wall construction:
Brick or modular block at least 4" (102 mm)
thick.
 A rubble or stone wall.


Flue liner:
Minimum thickness of 5/8" (16 mm).
Installed with refractory mortar.
At least 1" (25 mm) air space.
An equivalent flue liner must be a listed chimney
liner system meeting type HT requirements orother approved material.






Make sure the chimney’s cleanout is complete andworking properly. To avoid a loss of draft, thecleanout must close off completely. If allowed tocool, your stove will perform poorly and creosote willbuild up in the chimney.

Interior chimney requirements: At least 2" (51 mm) clearance to combustible
structure Fire stops must be installed at the spaces where
the chimney passes through floors and/or
ceiling.
 Insulation must be 2" (51 mm) from the chimney.

Make sure the size of the chimney’s flue isappropriate for this stove and that it is not too large.
Use a masonry chimney with a maximum of 8" x 8"(203 mm x 203 mm) tile size for best results. An
oversized flue will contribute to the accumulation ofcreosote.

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Exterior chimney requirements:
At least 1" (25 mm) clearance to combustible
structure.



Chimney height requirements: (See Illustration)
At least 3 feet (0.9 m) higher than the highest
part of the roof opening through which it passes.
 At least 2 feet (0.6 m) higher than any part of theroof within 10 feet (3 m) measured horizontallyfrom the top of the chimney.


We recommend a minimum chimney height of 13
feet (4 m). The maximum allowable chimney heightis 30 feet (9m).

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INSTALLING IN A MOBILE HOME

Chimney Cap

Follow these special requirements for installing yourstove in a mobile home.


Chimney Section
Storm Collar

Install the stove in accordance with 24 CFR,
Part 3280 (HUD)

Adjustable RoofFlashing

Permanently attach the stove to your mobile
home’s floor. Use 1/4" holes in each leg base tobolt down the stove.

Support Box

Install one of the following Dura-Vent Mobile
Home Chimney & Connector Kits:
6DP-MH 6” Diameter S/N 9096N
7DP-MH 7” Diameter S/N 9196N
8DP-MH 8” Diameter S/N 9296N
Each kit includes:
Stainless spark arrester cap, storm collar,
Adjustable vented flashing – 0/12 – 6/12,
Two 24” Dura/Plus* chimney pipes, 24”
support box with built-in starter section andtrim.
* (UL or ULC approved equipment is
acceptable)with built-in
Starter section

Stovepipe

Chimney must be removed when transporting
Mobile Home.

Typical Mobile Home Installation.
Chimney is supported by Ceiling.

WARNING: DO NOT INSTALL IN A SLEEPINGROOMCAUTION:
MAINTAINTHE
STRUCTURALINTEGRITY OF THE MOBILE HOME WALLS,FLOOR, CEILING, AND ROOF WHILE YOURSTOVE IS INSTALLED AND IN USE.

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Operation
Once your Bennington is set in place, connected,
and assembled, you are ready to light a fire.
Hearthstone tests each woodstove before we ship,
so you should be able to easily light your first fire.
You may, however, have to make a few small
adjustments to compensate for altitude and otherfactors particular to your installation.

control; push the lever up to close the primary aircontrol.

ASH PAN: The ash pan is located under the ash
lip. The ash pan collects burned ash from a fire andallows you to conveniently remove the ash from yourwood stove. The ash pan is easy to remove. While
the stove is cool, sift the ashes across the grate into
the ash pan then rotate the ash door handle counterclockwise and pull to open. Remove the ash pan bysliding it out carefully. After you have disposed of
the ashes, push the ash pan all the way into thestove and close the ash door.

WARNING: HOT WHILE IN OPERATION. KEEP
CHILDREN, CLOTHING AND FURNITURE AWAY.
CONTACT MAY CAUSE SKIN BURNS.

Please read this entire chapter before lighting yourfirst fire. It explains the controls and features of yourwood stove, how to choose firewood, and how tobreak-in your stove and use it on a daily basis.

Do not operate the stove unless the ASH
PAN is inserted into the stove and the ashdoor is closed. This could overheat anddamage the stove.

CONTROLS AND FEATURES
Before lighting any fires, become familiar with thelocation and operation of your stove's controls andfeatures and learn how to use them. For your own
safety, do not modify these features in any way.
REMOVABLE FRONT DOOR HANDLE: The front
doors allow you to load wood into your stove; theremovable handle allows you to operate the front
doors, latch them closed, then remove so the handle
does not become warm while the stove is in use. To
open the doors, lift the handle to the 2 o’clock
position and pull the door. To latch the doors, push
the left door closed first, then close the right door
tightly and lower the handle to the 4 o’clock
position. Pull on the door handle to make sure it isproperly latched, then remove the handle. Yourhandle can be stored to the left of the ash door in
the provided holder
SIDE DOOR HANDLE: The side door allows you toload wood into your stove; a fixed handle allows you
to operate the side door and latch the door closed.
To open the door, lift the handle to the 12 o’clock
position and pull the door. To latch the door, pushthe door closed tightly then lower the handle to the 3o’clock position. Pull on the door to make sure it isproperly latched.
PRIMARY AIR CONTROL: This feature is locatedin the front lower right of the stove. The primary aircontrol allows you to regulate the amount of air
entering the firebox. Generally speaking, the more
air allowed into the firebox, the faster and hotter therate of burn; conversely, less air creates a slower
burn. Push the lever down to open the primary air

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CHOOSING FIREWOOD
Your Bennington Woodstove is designed to only
burn firewood - also known as cordwood.

MediumJuniper, Rocky Mtn
Elm, Red
Coffeetree, Kentucky
HackberryTamarack
Birch, Gray
Birch, White (Paper)
Walnut, Black
CherryAsh, Green
Cherry, Black
Elm, American
Elm, White
SycamoreAsh, Black
Maple, Red
Fir, Douglas

CAUTION: DO NOT USE CHEMICALS OR
FLAMMABLE FLUIDS SUCH AS GASOLINE,
NAPHTHA, KEROSENE, CHARCOAL LIGHTER
FLUID OR ENGINE OIL TO START A FIRE. DO
NOT USE CHARCOAL, PELLETS, COAL,ARTIFICIAL LOGS OR ANY OTHER MATERIALSAS FUEL; THEY ARE NOT SAFE. DO NOT BURNGARBAGE.

The quality of your firewood directly affects heat
output, duration of burn and performance of yourstove. Softwoods generally burn hotter and faster,while hardwoods burn longer and produce better
coals. Density and moisture content are two criticalfactors to consider when purchasing wood for yourstove.
The following is a list of some wood species andtheir relative BTU (British Thermal Unit) content. The
higher the BTU content, the longer the burn.
Firewood with higher BTUs is generally ideal for awood stove.

Lb/ cord

MBTU/
cord

BoxelderAlder, Red
Pine, Jack
Pine, Norway (Red Pine)
Pine, Pitch
Catalpa
Hemlock
Spruce, Black
Pine, Ponderosa

4,728
4,327
4,267
3,890
3,890
3,890
3,832
3,832
4,100
3,712
4,012

32.9
27.7
27.3
26.8
26.8
26.8
26.7
26.7
26.5
25.8
25.7

High
Osage Orange (Hedge)
Hickory, Shagbark
Hop Hornbeam (Ironwood)
Beech, Blue (Ironwood)
Birch, Black
Locust, Black
Hickory, Bitternut
Locust, HoneyApple
Mulberry
Oak, White

3,757
3,757
3,757
3,689
3,689

2,797
2,710
2,669
2,669
2,669
2,360
2,482
2,482
2,380

17.9
17.2
17.1
17.1
17.1
16.4
15.9
15.9
15.2

2,290
2,100
2,100
2,100
2,236
2,236

14.7
14.5
14.5
14.5
14.3
14.3

2,104
2,108
1,984
2,108
1,913

14.1
13.8
13.8
13.5
12.2

Low
Aspen, American
Butternut (Walnut, White)
SpruceWillow
Fir, BalsamPine, White (Eastern,
Western)Fir, Concolor (White)
Basswood (Linden)
Buckeye, Ohio
Cottonwood
Cedar, White

Medium High
Beech, European
Maple, Sugar
Oak, Red
Ash, White
Birch, Yellow

21.8
21.6
21.6
20.8
20.8
20.3
20.3
20.2
20
19.9
19.9
19.5
19.5
19.5
19.1
18.7
18.1

Medium Low

Wood Heat Value: Sorted By Btu
Content
Common Name

3,150
3,112
3.112
3,247
3,247
3,179
3,179
3,192
3,120
2,880
2,880
3,052
3,052
2,808
2,992
2,924
2,900

24
24
24
23.6
23.6

Moisture content also plays a key role in theperformance of your stove. Wood freshly cut from aliving tree (green wood) contains a great deal of17

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moisture. As you might expect, green wood burns
poorly. You must season green wood before using it
in your wood stove. To season green wood properly,
split, stack, and allow it to air dry for a period of one
year. Green wood may provide less than 2000 Btu
per pound, whereas dry wood can provide up to7000 Btu per pound.

around your stove. If any odor persists, contact yourdealer or an authorized service technician.

BUILDING A BREAK IN FIRE
1) Open the door and place five or six
double sheets of tightly twisted
newspaper in the center of the firebox.
Arrange kindling in a crisscross patternover the newspaper. Kindling should beapproximately ten pieces, 1/2" (13 mm)
in diameter and 10" to 18" (254 mm to
457 mm) long.

Stack the firewood on skids or blocks to keep it off
the ground, cover only the top of the stack. Plastic
or tarps that cover the sides of the woodpile trap
moisture and prevent the wood from drying. As forstacking, an old Vermonter said, "The spaces
between the logs should be large enough for amouse to get through, but not for the cat that'schasing it."
DO NOT STORE FIREWOOD WITHINSTOVE'S
SPECIFIED
CLEARANCESCOMBUSTIBLE MATERIALS.

2) Fully open the primary air control bypushing the lever to the down.

THETO3) Light the paper under the kindling.
Leave
the front door slightly ajar
momentarily until the kindling has
started to burn and draft begins to pull.

BUILDING A FIRE
Once you understand the controls of your woodstove and have chosen the appropriate firewood,
you are ready to start a fire.

4) Close the door and allow the fire to
burn. Keep the door and ash drawer
closed while the stove is in use. Make
sure the ash door is in the closed
position.

BREAKING IN YOUR WOOD STOVE
It is imperative that your stove be "broken in" slowly.
Cast iron must be "seasoned"; over-firing a new
stove may cause castings to crack or may damage
other stove parts. Also, the asbestos-free furnace
cement must be cured slowly to insure adequate
sealing and bonding.

5) KEEP A WATCHFUL EYE ON YOURSTOVE to maintain a steady, low-heatfire. Your first fire should make thestove warm but not hot to the touch.
At most, a few small chunks of woodshould be added to the fire to reach safe
break-in temperatures.

The firebrick on the back and left side in your firebox
is intended to prevent thermal stress; leave it inplace in the firebox at all times.

6) Once the stove is warm but not hot to
the touch close the primary air control
by pushing it up and allow the fire to die
out completely.

When you light your first fires, the wood stove will
emit some smoke and fumes. This is normal “offgassing” of the paints and oils used whenmanufacturing the wood stove.
If you find it
necessary, open a few windows to vent your room.
The smoke and fumes will usually subside after 10
to 20 minutes of operation. The odor and smoke willend once the stove is “cured”.

7) Let the stove return to room
temperature.
Your first fire and first fire each season thereafter
should be built and maintained as outlined above.
Your patience will be rewarded by a properly
seasoned stove.

The first fires may produce other odors from
impurities that exist in the area immediately
surrounding the stove. Some of these impurities can
be cleaning solvents, paint solvents, cigarettes,
smoke, pet hair, dust, adhesives, a new carpet, andnew textiles. These odors will dissipate over time.
You can alleviate these odors by opening a few
windows or otherwise creating additional ventilation

NOTE: Because of the cool flue gas
temperatures present during the break-in
procedure, creosote may build up quickly.
Your window may get dirty. A good hot fire
will clean it.

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NORMAL OPERATION
6) Once the fire is burning well, use the primary
air control to regulate the desired rate ofburn. Pushing the lever down opens the
PRIMARY AIR CONTROL for a high rate ofburn or pushing it up for a low rate of burn.

If your stove is not used continuously or has notbeen used in quite some time, follow the break-in
procedure at least once to minimize the stress of a
hot fire on a cold stove before proceeding withnormal operation. We recommend one break-in fireat the start of each heating season. Prior to loading
the stove, make sure the ash door is closed and theash pan is in the stove. If the ash door is open, thestove will over-fire and be damaged.

Note: When opening the door to reload or rearrange logs, it is advisable to open the door
just a crack, pause for a moment then open
the door completely. This procedure will allow
the firebox to clear of smoke before the door
is opened fully. Also, reloading on a bed ofhot, red coals reduces smoking time and willbring fresh fuel up to a high temperature
rapidly.

BUILDING A FIRE FOR EVERYDAY USE
1) Open the door and place five or six double
sheets of tightly twisted newspaper in thecenter of the firebox. Arrange kindling in acrisscross pattern over the newspaper.
Kindling should be approximately ten pieces,1/2" (13 mm) in diameter and 10" to 18" (254
to 457 mm) long.

BURN RATEHIGH BURN: Fully load the firebox with wood on a
bed of hot coals or on an actively flaming fire andfully open the primary air control. A high burn rate isrecommended once or twice a day to fully heat thestovepipe and chimney, which will help minimize
creosote accumulation.

2) Fully open the primary air control by pushing
the lever down.
3) Light the paper under the kindling. Leave
the front door slightly ajar momentarily until
the kindling has started to burn and draft
begins to pull.

MEDIUM BURN: Set the primary air control to a midrange setting appropriate for the heating needs ofthe area being heated. A medium burn rate shouldbe the typical setting and is preferable if the stove is
to be left unattended.

4) Close the door and allow the fire to burn.

LOW BURN: Close the primary air control for a lowburn rate. A low burn rate over extended periods oftime is not advisable as it may promote theaccumulation of creosote. The venting systemshould be inspected frequently if low burn rates aremaintained consistently.

5) Once the kindling is burning, open the door
and add logs, small at first, to build the fire
up. Make sure to keep the logs away fromthe glass in front in order for the air-washsystem to work properly. Otherwise, keep
the front door and ash door closed while thestove is in use.

EXCESSIVE DRAFT: Contact your dealer
to have a draft reading taken. Any draft in excess of
0.1 wc requires a damper in the stovepipe. Someinstallations may require more than one damper.
INAPPROPRIATE FUEL: Do not burn coal,kiln dried lumber, wax logs or anything other thannatural cordwood.
OPERATOR ERROR: Make sure all thegaskets are in good condition. Replace worn out orcompressed gaskets. Do not burn the stove with thefront, side or ash doors in the open position.

OVER-FIRE CAUTION
Over-firing means the stove is operating attemperatures above the recommended
temperatures outlined above in the BURN RATE
section. Over-firing should be carefully avoided
since it will cause damage to the stove. Symptomsof over-firing include short burn times, a roaring
sound in the stove or stovepipe, and discoloration of
the stovepipe.
Over-firing can be caused by excessive draft,inappropriate fuel, and operator error. Correct anover-fire situation as follows:

Monitoring the temperature is the best way todetermine if the stove is over-firing. If you suspectthat your stove is over-firing, contact your dealer

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immediately. Damage done by over-firing is notcovered by your warranty. Results of over-firing can
include: warped or burned out internal parts,
discolored or warped external parts, and damaged
enamel.

MONITORING STOVE TEMPERATURES
Monitor the stove temperatures with a stove
thermometer (available from your dealer) placed on
the top center of the stove.

NOTE: ANY SYMPTOMS OF OVER-FIRING
WILL VOID YOUR WARRANTY!!

Do not over-fire the stove. (refer to page 17).

CREOSOTE FORMATION AND NEED FORREMOVALREMOVAL AND DISPOSAL OF ASHES
Ashes should be removed when the stove is cold.
Use protective fireplace gloves when the pan iswarm. Exercise extreme caution when handling,storing or disposing of ashes.

When wood is burned slowly, it produces tar andother organic vapors, which combine with expelled
moisture to form creosote. These creosote vapors
condense in the relatively cool chimney flue of aslow-burning fire. As a result, creosote residue
accumulates on the flue lining. When ignited, thiscreosote makes an extremely hot fire that may
damage the chimney or even destroy the house.

To remove ashes from the firebox, sift the ashes
across the ash grate using a poker or other suitable
implement. Remove the ashes by rotating thehandle on the ash door counter-clockwise andsliding the ash pan carefully out. Dump the ashes
as described below. Re-insert the ash pan bypushing it in all the way. Be sure that the ash pan
has been pushed firmly into place. Alternately, theashes can be removed with a shovel through theside or front door.

To prevent the buildup of creosote:
1. Burn the stove with the primary aircontrol fully open for 30 minutes daily to burn out
creosote deposits from within the stove and theventing system.
2. After reloading with wood, burn the stovewith the primary air control fully open for 20 to 30
minutes. This manner of operation ensures early
engagement of the secondary combustion system
which, when engaged, minimizes creosote buildup in
the chimney.

Ashes should be dumped from the ash drawer into a
metal container with a tight fitting lid. Do not place
any other items or trash into the metal container.
Replace the lid onto the container and allow theashes to cool. Do not place the ash disposal
container on a combustible surface or vinyl flooring,as the container will be hot!

The stovepipe connector and chimney should be
inspected at least monthly during the heating season
to determine if a creosote build-up has occurred. If
a creosote residue greater that 1/4" (6 mm) has
accumulated, it should be removed to reduce therisk of a chimney fire.

Pending disposal, place the closed ash container on
a noncombustible floor or on the ground, well awayfrom all combustible materials. Ashes should be
retained in the closed container until all cinders havethoroughly cooled.

If the glass is remaining dirty, your operating
temperatures are low; therefore, there is a higher
risk of creosote buildup.

Ashes should NEVER be placed in wooden or
plastic containers, or in paper or plastic bags, nomatter how long the fire has been out. Coals within
a bed of ashes can remain hot for several days once
removed from the firebox.

The venting system must be inspected at the stoveconnection and at the chimney top. Cooler surfaces
tend to build creosote deposits quicker, so it isimportant to check the chimney at the top (where it iscoolest) as well as from the bottom near the stove.

MAINTENANCE

Accumulated creosote should be removed with acleaning brush specifically designed for the type ofchimney in use. A certified chimney sweep should

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be used to perform this service. Contact your dealer
for the name of a certified chimney sweep in yourarea (your dealer may be a certified sweep!).

remaining in the door (take care to save hinge pins
and washers for reuse). Lay the door face down on
a workbench or table. Apply the cleaner to the glass
and allow it to set for a few minutes. By laying thedoor flat, it will allow the cleaner to penetrate rather
than running off the surface of the glass. Wipe thecleaner off with a soft cloth.

It is also recommended that before each heating
season the entire system be professionallyinspected, cleaned and repaired, if necessary.

Important: scratching or etching the glass
will weaken the integrity of the glass. Do not
use a razor blade, steel wool, or any otherabrasive material to clean the glass. Use low
alkaline content cleaners only.

GASKETS
Gasket material should normally be replaced every
two to three seasons, depending on stove use. If
the door seal is loose, a new gasket will assure atight seal and improved stove performance. Contact
your dealer for a gasket kit that includes instructions
and gaskets for your stove.

The front door glass is a ceramic, shock-resistantglass, made specifically for use in woodstoves. Do
not use any replacement glass other than theceramic glass manufactured and supplied for use inthis woodstove. Replacement glass is available
through your local dealer.

The procedure for replacing gaskets on the glass isreviewed on page 21.

The door glass should be replaced immediately if
broken. Contact your local dealer for replacement
glass, which is accompanied with instructions andeverything needed for the repair. If you replace theglass yourself, wear work gloves and safety glasses.

To replace door gaskets, first remove the oldgaskets with a utility or putty knife. Clean all gasket
channels with a wire brush. Apply gasket cement tothe channels and push the new gasket into place
without stretching the gasket material. The door
should be shut immediately to fully press the gasket
into place and assure a positive seal.
We require the use of the following gaskets:
GLASS: 60" (1524 mm) Length, 3/4" (19 mm) Wide,
Adhesive Backed Black Tape
DOOR: 60" (1524 mm) Length, 3/8" (9.5 mm)
Diameter, Low Density Black Tube
ASH DOOR: 40" (1016 mm) Length, 3/8" (9.5 mm)
Diameter, Med Density, Black Rope
SIDE DOOR: 1/4" (6.35 mm) Length, 30" (762 mm)
Diameter, Low Density, Black Rope

GLASS
Do not operate the stove with a broken door glass.
Do not abuse the front door by striking or slamming.
When necessary, the glass can be cleaned with low
alkaline content commercial stove glass cleaners,
which are available from your local dealer. Neverattempt to clean the glass while the fire is burning or
the glass is hot. Most deposits can be cleaned byfollowing the instructions provided with the cleaner.
To clean heavier deposits, open the door and lift itstraight up and off the stove with the hinge pins

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The procedure for glass and glass gasket
replacement is as follows:

If you question whether or not your stove is
producing adequate heat, the best way totroubleshoot the problem is to monitor thetemperature of the stack. A 400 degree F (200degree C) stovepipe confirms the stove is supplying
sufficient heat. Keep in mind that your house itself
will regulate room/house temperatures. How well
the walls, floors and ceilings are insulated, thenumber and size of glass windows, the tightness ofoutside doors, and the construction or style of yourhouse (vaulted ceilings or other open spaces whichcollect large percentages of heat, ceiling fans, etc.)
all are determining factors of room temperature.

1. Remove the door by lifting it straight up off
the hinges with the hinge pins remaining in
the door.
2. Place the door face down on a flat, smoothsurface.
3. Apply penetrating oil to the screws in theglass retainer clips. Remove the screws to
separate the glass from the door.
4. Carefully lift the damaged glass from thedoor and discard.
5. Peel the paper backing from the tapegasket. Apply the new gasket to the new
glass as illustrated on page 18.
6. Place the gasketed glass onto the door.
7. Screw the glass retainer clips back on thedoor.
8. Install the door.

Your stove's performance is also dependant on its
installation. One common cause of poor
performance is an oversized chimney flue.
Oversized chimney flues result in decreased
pressure, which prevents the smoke from rising out
the chimney. Oversized flues are also more difficult
to heat effectively, especially when burning a highefficiency stove. Cool flue temperatures inhibit theestablishment of a strong draft (and encourage theaccumulation of creosote). The lack of a strong draft
will cause the fire to die down and may even force
the smoke to pour into the room.

CAST IRON
Exterior cast iron parts are either painted with black,high-temperature stove paint or porcelainized withan enamel finish in various colors.

If your chimney is the proper size and a strong draft
is not easily established, there is the possibility of
the chimney being too cold. Again, hot chimneys
promote a stronger draft.

Use black, high-temperature stove paint (satin blackby Stovebright) to touch up and maintain the original
appearance of painted cast iron. Use a damp
sponge to wipe clean. Dry the cast iron thoroughly
to prevent rusting.

Other draft guidelines are as follows:
Enamel castings can be cleaned with a standard
glass cleaner. With time and use, a very fine, subtle
network of crazed lines may appear seemingly
beneath the surface of the enamel. Crazing is anatural, predictable process and does not represent
a flaw.

AN "AIRTIGHT" HOUSE: If your home is superinsulated or especially well sealed, the (infiltration)
air supply to the interior of the house may beinadequate. This phenomenon of air starvation
within the building can be exacerbated if exhaust
fans, such as clothes dryers, bathroom fans or cook
stove exhaust fans, are in operation within thehome. Outfitting your stove with the optional outside
air supply adaptor connected to an air duct whichleads to the outside of the building should correct
this problem.

TROUBLESHOOTINGYour Heating Needs
Virtually all woodstove operators experience basic
common problems at one time or another. Most are
correctable and generally require only a minor
adjustment of the stove, installation, or operating
technique. In cases where weather conditions
dramatically affect stove performance, the problems
are typically temporary and solve themselves once
the weather changes.

TALL TREES OR BUILDINGS: These obstructions,when located in proximity to the top of the chimney
can cause chronic or occasional downdrafts. Whenselecting a site for a new chimney, take care toconsider the placement of other objects in thevicinity of the proposed chimney location.
WIND VELOCITY: Generally, the stronger andsteadier a wind, the stronger (better) the draft.

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Hearthstone Quality Home Heating Products Inc ®

Bennington Model 8350

However, "gusty" wind conditions may cause erratic
downdrafts.

connection, or a leaky chimney may cause
inadequate draft.

BAROMETRIC PRESSURE: Chimney drafts are
typically sluggish on balmy, wet or muggy days.
This is a weather-related phenomenon, which
generally is self-correcting as the weather changes.

SEASONAL FACTORS: Early fall and late springare generally difficult seasons in which to establish
proper drafts. The colder the outside air (relative toroom temperatures), the stronger the draft.

Operating the Stove
BRISKNESS OF FIRE: The hotter the fire in yourstove, the hotter your chimney and, therefore, thestronger the draft.

There are days when a draft is not easily
established. As outlined above, seasonal factors ora cold chimney may be the cause. Try starting thefire by using small kindling and fuel to obtain a quick,hot fire. Tend the fire frequently with small fuel until
the chimney is hot and the draft is well established.

BREAKS IN THE VENTING SYSTEM: An unsealed
clean-out door at the bottom of the chimney, leaky
stovepipe joints, a poor stovepipe-to-thimble

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Hearthstone Quality Home Heating Products Inc ®

TROUBLESHOOTING GUIDEPROBLEMPOSSIBLE CAUSESTOVE SMOKES

Operating TechniqueCold Chimney
Blocked Chimney

BACK-PUFFINGOR GASEXPLOSIONSUNCONTROLLEDOR SHORT BURN

Oversized Chimney
Undersized Chimney
Chimney Too Short
Air Infiltration Into The
ChimneyMore Than One
Appliance Connected to
the Flue
Operating Technique

Extra Low Burn Rate
Chimney Down-draft
Excessive Ash Build-up
Unsealed or Open Door
Excessive Draft
Deteriorated Cement
Seals
Extra Long Chimney
Oversized Chimney
High Winds or Hilltop
Location:
Excessive Draft

INSUFFICIENTHEATBLISTERING OF
ENAMELCASTING

Poor Quality or GreenWood
Low Burn Rate
Air Insulated Chimney
Cold Exterior Chimney
Leaky Stovepipe or
ChimneyToo Much Heat Loss
From House
Operating Technique

Excessive Draft

Bennington Model 8350

SOLUTIONS
Fully open the primary air control one minute before
opening doors.
Preheat the chimney when first starting a fire.
Examine the chimney and stovepipe for blockage orcreosote accumulations.
Reline the chimney to the appropriate diameter
Install a draft inducer or replace the chimney.
Lengthen the chimney.
Seal chimney connections and openings in clean-out
doors.
Disconnect all other appliances and seal openings.

Fully open the primary air control one minute before
opening the door and keep it fully open for a few minutes
after reloading.
Burn the stove at a higher burn rate.
Install a chimney cap.
Empty ash pan more frequently.
Close the door tightly or replace the gaskets.
Check the installation. Operate at LOW BURN. Install
stovepipe damper.
Reseal the stove with furnace cement.
Shorten the chimney. Install stovepipe damper.
Reline the chimney to the proper diameter.
Install a chimney cap.
Draft in excess of 0.1 wc should be corrected with astovepipe damper
Use only air-dried wood, preferably dried at least one
year.
Operate the stove at a higher burn rate.
Replace with a pre-fabricated insulated chimney system ora properly sized masonry chimney.
Reline or insulate the chimney.
Check the installation.
Caulk windows, seal openings in home.
Do not over-fire the stove. Monitor stove temperatures.
Use seasoned wood only.
Check the DRAFT. A damper may be required. Operate
the stove at a LOW BURN range.

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Hearthstone Quality Home Heating Products Inc ®

Bennington Model 8350

REPLACEMENT PARTS & OPTIONAL ACCESSORIESPART NUMBER:CASTINGSDESCRIPTION:

PART NUMBER:
STEEL SETDESCRIPTION:

23XX-505
2310-512
2310-514
23XX-530
23XX-535
23XX-540
23XX-545
2310-548
2310-550
2310-560
2310-565
2310-570
2310-575
2310-582
23XX-585
23XX-590
2310-583
2310-584

ASH GRATE FRAME
LPAO DEFLECTION PLATELPAO AIR RISERBACK CASTINGLEFT SIDERIGHT SIDEFRONTAIR CONTROL HANDLE
ASH DOOR
ASH LIPRIGHT SIDE DOORLEFT FRONT DOORRIGHT FRONT DOORHEAT EXCHANGERTOP CASTINGTOP GRILLFLUE COLLAR
FLUE COLLAR ADAPTERHANDLE COMPONENTSWOODEN HANDLEHANDLE SCREW 3-1/4”
SPLIT LOCK WASHER ¼”

5350-010
5350-044
5350-035
5010-080
5350-047
5350-040
5350-071
5350-072
5350-073
5350-012
5350-014
5350-052

ASH TRAYFRONT DOOR LATCH
SIDE DOOR LATCH
DOOR CRANKFRONT DOOR CRANKFRONT DOOR HINGESECONDARY AIR TUBE #1
SECONDARY AIR TUBE #2
SECONDARY AIR TUBE #3
ASH DOOR HINGE L
ASH DOOR HINGE R
GLASS RETAINER CLIPS

3900-180
4500-1680
4600-0400

MISCELLANEOUS
3030-022
3030-023

GLASS, BEN, LEFTGLASS, BEN, RIGHT

93-70500

KIT (Bolt-up side door)

OPTIONALACCESSORIES
93-57500

Note: 23XX – Enamel parts

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Blower AssemblyHearthstone Quality Home Heating Products Inc ®

Bennington Model 8350

SAFETY & RATING LABEL26

WARRANTY REGISTRATIONThe Original Purchaser may complete the Warranty Registration process on our website:www.hearthstionestoves.com, or send a completed and signed Warranty Registration Form, which is
enclosed in the Woodstove warranty packet, to the following address:
Hearthstone Quality Home Heating Products, Inc.
Warranty Department
317 Stafford Avenue
Morrisville, VT 05661
NOTE: SENDING IN THE SIGNED WARRANTY REGISTRATION FORM IS NOT A CONDITION
OF WARRANTY COVERAGE OR HEARTHSTONE’S PERFORMANCE.