HearthStone 8390 User manual

Hearthstone Quality Home Heating Products, Inc. ® Craftsbury Model 8390
Manual: 6400-40454
Revised: 6/8/11
Craftsbury
(Model 8390)
Wood Stove
OWNER'S MANUAL
INSTALLATION &
OPERATING INSTRUCTIONS
PLEASE READ THIS ENTIRE OWNER’S MANUAL BEFORE YOU INSTALL AND USE YOUR
NEW CRAFTSBURY WOOD STOVE.
To reduce the risk of fire, follow the installation instructions.
Failure to follow these instructions can result in property damage, bodily injury, or even
death.
CONTACT LOCAL AUTHORITIES WITH JURISDICTION (BUILDING DEPARTMENT or
FIRE OFFICIALS), ABOUT PERMITS REQUIRED, RESTRICTIONS AND INSTALLATION
INSPECTION IN YOUR AREA.

Stove Information
Model Number: _____________________________________________________________
Serial Number: _____________________________________________________________
Date of Purchase: ___________________________________________________________
Name of Dealer: ____________________________________________________________
Address of Dealer: ___________________________________________________________
__________________________________________________________________________
Phone Number: _____________________________________________________________
E-mail Address: _____________________________________________________________
Warning
During the break-in fires (see page 18), you do not heat the stove to high
temperatures as you would once the stove is seasoned. Due to this, you
may notice a small amount of black liquid dripping from the bottom of the
stove. This is from incomplete combustion of the wood and from
condensation within the stove. This dripping liquid will only last for the
first couple of fires. After this the dripping will stop. You may want to
place a noncombustible material under the stove to protect your hearth
from stains until your break-in fires are complete.
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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TABLE OF CONTENTS
INTRODUCTION.....................................................................................................................................................4
CODES .................................................................................................................................................................................. 5
SAFETY INFORMATION............................................................................................................................................................. 5
PERIODIC CHECKLIST.............................................................................................................................................................. 6
EMERGENCY PROCEDURES...................................................................................................................................................... 6
SPECIFICATIONS ..................................................................................................................................................................... 7
INSTALLATION......................................................................................................................................................8
UNPACKING............................................................................................................................................................................ 8
INSTALLING YOUR STOVE ........................................................................................................................................................ 8
CLEARANCES TO NFPA 211 PROTECTED SURFACES ................................................................................................................ 8
FLOOR PROTECTION ............................................................................................................................................................... 8
MANTLE CLEARANCES FOR ZCOR MASONRY FIREPLACE............................................................................................................ 9
OUTSIDE AIR SUPPLY.............................................................................................................................................................. 9
CLEARANCES TO COMBUSTIBLES ........................................................................................................................................... 10
VENTING CONFIGURATION ..................................................................................................................................................... 11
Components of a Venting System......................................................................................... 11
Installing a Venting System.................................................................................................... 11
CONNECTING YOUR WOOD STOVE ......................................................................................................................................... 12
Connecting to a Prefabricated Metal Chimney.................................................................... 12
Connection To A Masonry Chimney..................................................................................... 14
INSTALLING IN AMOBILE HOME.............................................................................................................................................. 15
OPERATION.........................................................................................................................................................16
CONTROLS AND FEATURES.................................................................................................................................................... 16
CHOOSING FIREWOOD........................................................................................................................................................... 17
BUILDING AFIRE................................................................................................................................................................... 17
BREAKING IN YOUR WOOD STOVE.......................................................................................................................................... 17
Building A Break In Fire.......................................................................................................... 18
NORMAL OPERATION............................................................................................................................................................. 18
Building A Fire For Everyday Use......................................................................................... 18
Burn Rate.................................................................................................................................. 19
Over-Fire Caution..................................................................................................................... 19
Removal And Disposal Of Ashes.......................................................................................... 19
MAINTENANCE....................................................................................................................................................20
Monitoring Stove Temperatures............................................................................................ 20
Creosote Formation And Need For Removal...................................................................... 20
Gaskets...................................................................................................................................... 20
Glass.......................................................................................................................................... 21
Cast Iron.................................................................................................................................... 21
TROUBLESHOOTING..........................................................................................................................................22
Troubleshooting Guide............................................................................................................ 23
REPLACEMENT PARTS & OPTIONAL ACCESSORIES...................................................................................24
RATING LABEL....................................................................................................................................................25

Introduction
Welcome to the Hearthstone family.
You have made an investment in one of the finest
solid fuel heaters available today. To own a
Hearthstone is to make a statement – a statement
that you appreciate exceptional quality and
efficiency in a stove that is backed by the best
warranty in the hearth industry.
Your purchase ensures you of years of clean,
comfortable heat with minimal maintenance. You
will receive the benefits of the most advanced
technology in wood burning without the cost and
maintenance requirements of a catalytic equipped
stove. The Craftsbury blends modern technology
with the time tested beauty of matte or enameled
cast iron. We trust that you will appreciate the value
of our handcrafted product.
Please read this manual in its entirety. Its purpose
is to familiarize you with your stove's safe
installation, proper break-in, operation and
maintenance. It contains information that is useful to
you now and in years to come, so keep it handy and
refer to it as needed.
Use these instructions as well as national, state, and
local building codes to install your stove. Be sure to
maintain the designated stovepipe and stove
clearances to walls, ceilings, hearth, and other
combustible surfaces. This will help reduce the risk
of fire. Failure to follow these instructions can result
in property damage, bodily injury, and even death.
Locate your stove in a safe, convenient, open area;
away from traffic flow, doors, and hallways. At the
same time, keep it as close to the chimney as
possible. Review the proper clearance
measurements from combustible surfaces. You can
safely reduce required clearances in most cases
with the rear heat shield that the stove was tested
with and close clearance pipe, or by following the
NFPA 211 codes. Consult with your local authorities
having jurisdiction.
Keep furniture, drapes, curtains, wood, paper, and
other combustibles far away from the stove. Never
install the stove in a location where gasoline,
kerosene, charcoal lighter fluid or other flammable
liquids are used or stored.
The walls of a Hearthstone stove produce both
radiant and convective heat. Locate the stove
centrally in your living area to allow the heat to travel
naturally to distant rooms. To heat the maximum
area, do not locate your stove in an uninsulated
basement. The amount of energy required to heat
the concrete basement walls is so great that most of
the usable heat is absorbed by the walls and lost.
SAFETY NOTICE:
A HOUSE FIRE MAY RESULT IF THIS
STOVE IS NOT INSTALLED PROPERLY.
FOR YOUR SAFETY, CAREFULLY
FOLLOW THE INSTALLATION
DIRECTIONS. CONTACT LOCAL
BUILDING 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, the
general information and operating procedures
presented here can only serve as useful guidelines
rather than hard and fast rules. Should you have
any questions, do not hesitate to contact your dealer
for additional information.
Validate your warranty - return your warranty
registration card to Hearthstone. Once you have a
registered warranty, contact your dealer for any
necessary warranty service.
This stove is manufactured and warranted by:
Hearthstone Quality Home Heating Products, Inc.
®
317 Stafford Ave.
Morrisville, VT. 05661
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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CODES
When you install your Craftsbury wood stove, it is
imperative that you adhere to all local codes, which
are obtained from either of the following two national
sources for United States:
American National Standards Institute, Inc.
(ANSI)
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc. (NFPA)
Battery March Park
Quincy, MA 02269
Or the CAN/ULC B 365 and the National
Building Code for Canada.
If you are installing your Craftsbury in a mobile
home, follow the specific guidelines described in the
Manufactured Home Construction and Safety
Standard, Title 24 CFR, Part 3280 (United States).
CAN/ULC B 365 and the National Building Code.
(Can)
SAFETY INFORMATION
Read and understand this Owner's Manual
thoroughly before installing and using this
stove.
Make sure to install your stove:
According to the manufacturer's
recommendations.
In accordance with all applicable codes.
With the proper sized chimney.
When using your stove:
Warn children and others unfamiliar with
woodstoves of the danger of touching the hot
surfaces of your stove. For additional safety,
obtain hearth and stove guards through your
local dealer.
Follow recommended break-in procedure as
outlined in this manual (see page 18).
Burn natural wood only. Higher efficiencies and
lower emissions result when burning air-dried,
seasoned wood, as compared to green or
freshly cut wood.
Use caution when loading firewood into a hot
stove.
Keep the front door closed at all times except
when loading wood.
Keep the ash pan door tightly closed and the
ash grate closed to prevent over-firing.
Inspect the stovepipe, chimney connector and
chimney frequently, as recommended.
Follow these safety precautions:
Never modify this stove in any way, especially
the primary air control system.
Never burn kiln dried wood, painted or treated
wood, solvents, trash, plywood, colored or
glossy paper, artificial logs, cardboard, coal,
garbage or driftwood. Especially, do not burn
coal in this stove.
Never use gasoline type fuels, kerosene,
charcoal lighter fluid, or other liquid fuels to start
or invigorate the fire. Keep all such materials
away from the stove.
Never use the stove if the ash pan door is loose,
or if the ash grate is open.
Never use a fireplace grate or other device to
elevate the fire.
Do Not allow logs to rest against or otherwise
come in contact with the glass when the door is
closed.
Do Not slam the door or use it to force wood in
to the stove.
Never over-fire your stove. (See page 20)
Never put articles of clothing or candles on a hot
stove.
Do Not connect the stove to a flue that is
serving 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 10)
Install a smoke detector.
Keep a fire extinguisher handy. We recommend
the type rated "A B C."
Dispose of ashes properly. (See page 20)
Keep children and pets away from the stove;
they could be burned by touching a hot stove.
Clean your venting system as needed. (See
page 20)
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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PERIODIC CHECKLIST
PLEASE EXERCISE CARE WHEN LOADING
WOOD OR CLEANING YOUR STOVE, NOT TO
DAMAGE THE Thermo-Ceramic BAFFLE
Perform each of these tasks at the specified
intervals.
Located directly above the burner tubes in the
firebox, this white sheet of material will break if wood
or cleaning brushes impact it. Be careful when
loading and cleaning your stove to not break this
material. If this piece has been fractured or a hole is
punctured, it will cause the stove to function
improperly. You must replace the board through a
qualified Hearthstone dealer.
At the End of Every Week:
Empty ashes from the firebox and ash pan,
sooner if the firebox or the ash pan begins to fill
up.
At the Beginning of Every Month:
Visually inspect chimney connector and chimney
for creosote; clean accordingly.
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. (Refer to
page 21 – Creosote Formation and Need For
Removal)
EMERGENCY PROCEDURES
If you have a stovepipe or chimney fire, follow
these instructions:
Check door seals using the "dollar bill test." -
When the fire is out and the stove is cool, shut
the 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 21 –
Gaskets)
1. If the fire is too threatening, leave the area
and call the fire department immediately! If
not, perform the next three steps.
2. Close the primary air control.
3. Close the stovepipe damper (if present).
4. Keep the stove front, side and ash doors
closed!
At the End of Every Season:
Dismantle the chimney connector and clean it
thoroughly. Replace any pieces that show signs
of rust or deterioration.
▌WARNING:
DO NOT ATTEMPT TO PUT OUT A STOVEPIPE
OR CHIMNEY FIRE BY THROWING WATER ONTO
THE STOVE, STOVEPIPE, OR CHIMNEY. THE
EXTREMELY HIGH TEMPERATURE ASSOCIATED
WITH SUCH FIRES CAN CAUSE
INSTANTANEOUS STEAM AND SERIOUS BODILY
HARM.
Inspect and, if necessary, clean your chimney.
Thoroughly clean out the inside of the stove.
Inspect all door gasket material and replace if
worn, frayed, cracked or extremely hard.
CAUTION:
The ceramic baffle inside the firebox is not
packing material! Do not remove it from the
stove prior to lighting.
Once the chimney fire has expired, leave the
primary air control closed and let the fire in the
stove die out completely. Do not fire the stove
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.
Hearthstone’s Thermo-Ceramic
Baffle System
To enhance the combustion efficiency and reduce
the emissions of the fire in your stove HearthStone
QHHP, Inc. has developed an advanced THERMO-
CERAMIC baffle system. This system uses a
lightweight, durable ceramic material above the
burner tubes to maintain the high temperatures in
the secondary combustion area and maintain the
low emission – high efficiency combustion you
desire. This new technology will not corrode, rust
dissolve or lose its strength, however it is vulnerable
to puncture or cracking due to rough handling.
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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SPECIFICATIONS
Maximum Heat Output: 40,000 BTUs per
hour of cordwood (based
on independent
laboratory test results)
Size of Heated Area:Up to 1,300 square feet.
Firebox Capacity: 1.5 cubic feet (.042 cubic
meters) or 37.5 pounds
of wood (The amount
and weight of wood
contained per cubic foot
of firebox volume can
vary from 15 to 36 lbs.
per cubic foot depending
on type of wood,
moisture content,
packing density and
other factors. As a
constant for comparison
and test purposes, we
are assuming 20 lbs. of
seasoned hardwood per
cubic foot of firebox
volume).
Maximum Log Length: 17.5" (44.5 cm)
Height: 26-1/8" (66.4 cm)
Width: 22-3/8” (56.8 cm)
Depth: 17-3/8" (44.1 cm)
Front Door Size: 19-3/4" wide x
16-5/8" high (422
x 349 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: Horizontal or
Vertical
Optional Equipment: Outside Air Kit,
Blower,
Rear Heat Shield
Figure 1 – Craftsbury Dimensions
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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Installation
UNPACKING
Your Craftsbury stove is packaged with the great
care, so that it ships safely. Under certain
circumstances, however, damage can occur during
transit and handling. When you receive your stove,
unpack it carefully, inspecting your stove and all
parts for damage. Also, make sure that all parts are
included in the box. If any parts are damaged or
missing, please contact your dealer immediately.
INSTALLING YOUR STOVE
Please use this section to plan how to locate your
stove in your particular situation. Consider both the
clearances of the stovepipe and the stove itself to
the surrounding combustibles. Read this entire
section to obtain a sound understanding of how to
properly install your stove.
First you must decide where your stove will be
placed. After choosing an appropriate spot, inspect
this location to make sure that the stove will have
enough clearance to combustible materials that
would surround the stove. These combustibles can
include walls, floor, ceiling, furniture, and curtains.
You must carefully consider the clearances to all of
these combustibles before actually connecting your
stove. When considering these clearances, also
decide the kind of floor the stove will rest on. The
area under and directly in front of the stove must be
protected as described on page 10.
If you use a close clearance connector pipe, it must
be tested and listed to UL standards. Check the
listing for your pipe for actual clearances. The
diagrams in this manual represent typical
installations, but are specific to the Simpson Dura-
Vent DVL brand. Clearances cannot be reduced
without following the tested methods (rear shield and
close clearance connector pipe) or by following the
criteria specified in NFPA 211 for US and CAN/ULC
B 365 for Canada.
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 (US) and CAN/ULC B
365 (Can) for specifications and complete details.
You can obtain this information directly from
NFPA or CSA.
National Fire Protection Agency
Batterymarch Park
Quincy, MA 02269
1-800-344-3555
1-617-770-3000
FLOOR PROTECTION
Install your stove on one of the following:
*Noncombustible floor protector underneath the
stove that extends 16 inches (US) / 46 cm (Can)
beyond the front door and 8 inches US / 203 mm
(Can) beyond each side of the fuel loading and
ash removal opening. *An example of a non-
combustible floor protector would be a hearth
constructed with a continuous layer of a listed
backer board (such as Wonder-Board or
Durock) used for ember protection with a tile,
brick, slate, or another noon-combustible facing.
A commercially manufactured hearth that is
tested and listed to UL 1618 can be used as the
floor protection if it meets the minimum size
requirement (38.5” by 41”) US and (98cm by 109
cm) Canada.
For horizontal chimney connector
installations, the floor protection must be
installed beneath the connector and 2”
beyond each side.
See Figure 2 for specific hearth details.
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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AND STOVE TO EDGE CLEARANCES
MINIMUM FLOOR PROTECTOR SIZE
Figure 2 – Hearth Requirements
MANTLE CLEARANCES FOR ZC OR
MASONRY FIREPLACE
SIDE CLEARANCE:
(from top corner)
8" - TO 2" OR LESS SIDE TRIM
9" - TO 2”-4” SIDE TRIM
TOP CLEARANCE:
(from top)
14"- TO 0”-6" MANTLE LENGTH
16"- TO 6”-8" MANTLE LENGTH
18"- TO 8”-10" MANTLE LENGTH
Figure 3 – Mantle Requirements
OUTSIDE AIR SUPPLY
An outside air source may be connected
directly to this stove using an optional outside air kit
(Hearthstone part #90-53210). The advantage of
providing outside air directly to the stove is that the
air used by the stove for combustion is taken from
outside of the residence rather than from within the
room where the stove is located. 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 kit may also improve stove
performance in a particularly airtight house where
the house or other appliances may compete for the
combustion air.
The outside air kit for this stove allows 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 the house.
When considering placement of the duct from the
outside of the house to the hearth, keep in mind the
need to avoid structural members of the house. The
termination of the duct on the outside wall of the
house should be located in such a manner so as to
preclude the possibility of obstruction by snow,
leaves or other material and should be screened
against animals and insects.
OUTSIDE AIR
ADAPTER
RETAINING TABS
Figure 4 - OUTSIDE AIR CONNECTION
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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CLEARANCES TO COMBUSTIBLES
* * * * * * * *
Please use this section to plan the layout for
your stove. Consider clearance of pipe to
combustibles and stove to combustibles.
More specifics on installation follow.
* * * * * * * *
You must follow minimum clearances for the
Craftsbury stove to combustibles such as walls and
ceilings.
STOVE CLEARANCE
TO COMBUSTIBLES
PARALLEL CORNER VIEW
SIDE FRONT
VIEW
ALCOVE CLEARANCE
TO COMBUSTIBLES
WITH DOUBLE WALL PIPE
AND REAR HEAT SHIELD
Clearances Single wall connector Double walls connector
With rear heat shield kit
From unit
(Top corner) From pipe (center) From unit (Top corner) From pipe (center)
(cm) (in) (cm) (in) (cm) (in) (cm) (in)
Rear wall A: 61 24 D: 53 21 A:30.5 12 D: 23 9
Side wall B: 35.5 14 E: 62 24.5 B: 35.5 14 E: 62 24.5
Corner C: 43 17 F: 57 22.5 C: 25.5 10 F: 38 15
ALCOVE Double walls connector
With rear heat shield kit
Clearances From unit
(Top corner) From pipe (center)
(cm) (in) (cm) (in)
Rear wall 30.5 12 15 9
Side wall 38 15 57 25.5
Ceiling 91 36 N/A N/A
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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DO NOT CONNECT THIS UNIT TO A CHIMNEY
FLUE 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 a
masonry chimney to reduce clearances, is
available from several manufacturers, your
dealer can help you choose. Some
manufacturers of close clearance connector pipe
are Simpson Dura Vent, Metalbestos, Security,
GSW and Ameritec.
When used in a mobile home, a spark arrester
venting cap is required. (See page 15)
Chimney connector shall not pass through floor
or ceiling, nor any attic or roof space, closet or
similar concealed space. Where passage
through a wall or partition of combustible
construction is desired, the installation shall
conform to NFPA 211 or CAN/CSA - B365.
It is very important to follow minimum clearances for
chimney connectors to combustibles such as walls
and ceilings when installing the stove near non-
combustible surfaces. Typical chimney connector
clearances are outlined below. The single wall
clearances are generic; the Double wall clearances
are for Simpson Dura Vent DVL.
CHECK THE SPECIFICATIONS FROM THE
MANUFACTURER OF YOUR CONNECTOR. USE
OF MAKESHIFT VENTING COMPONENTS MAY
COMPROMISE THE SAFTY OF THE
INSTALLATION.
VENTING CONFIGURATION
COMPONENTS OF A VENTING SYSTEM
The complete venting system will consist of several
components: chimney connector, wall thimble, wall
pass-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.
To protect against the possibility of a house fire,
you must properly install and constantly maintain
the venting system. Upon inspection, immediately
replace rusted, cracked, or broken components.
The chimney connector is the stovepipe from the
woodstove 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 the
extreme temperatures of a wood fire.
A thimble is a manufactured (or site-constructed)
device installed in combustible walls through
which the chimney connector passes to the
chimney. It keeps the walls from igniting. You
must use a wall thimble when installing a
chimney connector through a combustible wall to
the chimney.
A wall pass-through (or chimney support
package) also keeps the walls from igniting. You
must use one when connecting through a wall or
ceiling to a prefabricated chimney.
Only install this stove to a lined masonry chimney
or an approved high temperature prefabricated
residential type building heating appliance
chimney. Do not connect this stove to a chimney
serving another appliance; you will compromise
the safe operation of both the wood stove and
the connected appliance.
▌WARNING:
DO NOT CONNECT THIS APPLIANCE TO ANY
AIR DISTRIBUTION DUCT OR SYSTEM.
A liner (listed to UL 1777 or ULC S635) creates
an acceptable flue in a factory built fireplace or in
an existing masonry chimney.
You must connect your stove to a chimney
comparable to those recommended in this manual.
Do not use stovepipe as a chimney. Use stovepipe
for freestanding installations only to connect the
stove to a proper chimney.
INSTALLING A VENTING SYSTEM
Stovepipe sections must be attached to the stove and
to each other with the crimped end toward the stove.
If creosote builds up, this allows the creosote to run
into the stove and not the outside of the stovepipe
and onto the stove.
Secure all joints, including attaching the stovepipe to
the stove's flue collar, with three sheet metal screws.
Install #10 x 1/2" (3 mm x 13 mm) sheet metal screws
into the holes pre-drilled in the flue collar. Failure to
install the screws can cause joints to separate from
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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the intense vibration that result from a creosote
chimney 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
periodically inspection or clean the stovepipe
connection and 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).
Long runs of stovepipe to increase heat dispersal
are not recommended. Using longer lengths of
stovepipe or more connecting elbows than
necessary increases the chances of draft resistance
and the accumulation of creosote buildup.
In general, you do not need to install a stovepipe
damper with the Craftsbury. 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 Craftsbury requires a
draft between 0.06" wc and 0.1" wc. For drafts
above 0.1" wc, install a stovepipe damper.
Remember, the NFPA has recommended, minimum
clearances for chimney connectors to combustibles
such as walls and ceilings. Once the stove is
installed at safe distances from these combustible
surfaces, it is important to maintain these connector
clearances for the remainder of the installation.
CONNECTING YOUR WOOD STOVE
You can install your Craftsbury to a prefabricated
metal chimney or a masonry chimney.
Reversing the flue collar
The Craftsbury is vented either horizontally or
vertically by reversing the flue collar.
CONNECTING TO A PREFABRICATED
METAL CHIMNEY
When connecting the Craftsbury to a prefabricated
metal chimney, you must follow, precisely, the
manufacturer's installation instructions. Use only
Type HT (2100 deg. F), prefabricated metal chimneys
listed per UL 103 or ULC S629 standards.
▌WARNING:
DO NOT CONNECT THE STOVE TO A CHIMNEY
FLUE SERVING ANOTHER APPLIANCE.
Make sure the size of the chimney’s flue is
appropriate for the Craftsbury. The Craftsbury
requires a 6" (152 mm) inside diameter flue for new
installations. A 6” diameter flue provides adequate
draft and performance. You can use an 8" (203 mm)
diameter existing interior flue with a reducer. An
oversized flue, especially a cold, exterior flue,
contributes to draft reduction and creosote
accumulation. (In this case, bigger is NOT better.)
When purchasing a prefabricated chimney to install
with your stove, be sure to also purchase from the
same manufacturer all of the necessary components
such as the wall pass-through (or ceiling support
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 installing the
chimney and accessories. In addition, be sure to
maintain all manufacturers’ recommendations for the
proper clearances to the chimney.
There are basically two ways to install a
prefabricated metal chimney:
An interior installation where the chimney passes
inside the residence through the ceiling and 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. An
interior chimney heats up more quickly and retains its
heat; thus promotes a better draft and discourages
the formation of creosote. An exterior chimney does
not benefit from the warmth of being surrounded by
the building, so it typically operates at lower flue
temperatures than an interior chimney. An exterior
chimney’s draft is not as strong and may experience
increased creosote accumulation.

Chimney Cap
Extended Roof
Support Bracket
(Conduit
not included)
Storm Collar
Adjustable Roof
Flashing
Twist-Lock
Chimney Sections
Attic Insulation Shield
Firestop Radiation
Shield
Firesafe Enclosure
Two story house installation with attic.
Stovepipe
Support Box and Trim
Collar with built-in
Starter section
Chimney through outer wall with enclosed chase. One story house installation with attic.
Chimnet Cap
StormCollar
Flashing
Chimney Sections
Chase Enclosure
Wal l St r ap
Support Box
with built-in
Starter
Adjustable Roof
Tee
Wall Thimble
Tee clean-out
Access door
Tee Support Bracket
Chimney is supported by Tee Support Bracket. Chimney is supported by Ceiling.
Chimnet Cap
StormCollar
Flashing
Adjustable Roof
section
Insullation
Shield
Stovepipe
Chimney pipe through Clay tile
Chimnet Cap
StormCollar
Flashing
Chimney Sections
Masonry Chimney
Adjustable Roof
Tee
Wall Thimble
Tee clean-out
Access door
or other Lined Masonry Chimney
Clay tile or
other Liner
Figure 5 – Typical Venting Configurations
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Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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CONNECTION TO AMASONRY CHIMNEY
Consider two primary elements when connecting
your stove to a masonry chimney: the chimney itself
and the thimble where the stovepipe connects to
the chimney. Use only Code approved masonry
chimneys with a flue liner.
Before connecting to a masonry chimney, hire a
professional to examine the chimney for cracks,
loose mortar, and other signs of deterioration and
blockage. If the chimney needs repair, complete
them before installing and using your stove. Do not
install your stove until the chimney is safe for use.
Make sure the chimney’s cleanout is complete and
working properly. To avoid a loss of draft, the
cleanout must close off completely. If allowed to
cool, your stove will perform poorly and creosote
will build up in the chimney.
Make sure the size of the chimney’s flue is
appropriate for this stove and that it is not too large.
Use a masonry chimney with an 8" x 8" (203 mm x
203 mm) tile size for best results. An oversized flue
will contribute to the accumulation of creosote.
Use the following checklist to ensure that your
masonry chimney meets these minimum
requirements:
Chimney wall construction:
Brick or modular block at least 4" (102 mm)
thick.
A rubble or stone wall at least 12" (305 mm)
thick.
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 or other approved material.
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.
Exterior chimney requirements:
At least 1" (25 mm) clearance to combustible
structure.
Chimney height requirements: (See Figure 6)
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
the roof within 10 feet (3 m) measured
horizontally from the top of the chimney.
This stove requires a minimum chimney height of
13 feet (4 m). The maximum allowable chimney
height is 30 feet (9m).
3'-0"
MINIMUM
10'-0"
2'-0"
MINIMUM
3'-0"
MINIMUM
2'-0"
MINIMUM
Figure 6 – Chimney Height Requirements

INSTALLING IN AMOBILE HOME
Follow these special requirements for installing your
stove in a mobile home.
Install the stove in accordance with 24 CFR, Part
3280 (HUD) for US or CAN/ULC B 365
for Canada.
Permanently attach the stove to your mobile
home’s floor. Use the ¼-20 holes in each leg
base to bolt down the stove.
The outside Air Kit (90-53210) must be used.
(see page 9).
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 and
trim.
(UL or ULC approved equipment is acceptable)
Chimney must be removed when transporting
Mobile Home.
DO NOT operate with the door(s) open or with
Viewing Screen.
Use only with double-wall stove pipe.
▌WARNING:
DO NOT INSTALL IN A SLEEPING ROOM.
USE OF NON-SPECIFIED COMPONENTS
MAY COMPROMISE THE SAFTY OF THE
INSTALLATION.
▌CAUTION:
MAINTAIN THE STRUCTURAL INTEGRITY
OF THE MOBILE HOME WALLS, FLOOR,
CEILING, AND ROOF WHILE YOUR STOVE
IS INSTALLED AND IN USE.
Chimney Section
Chimney Cap
Stovepipe
Chimney is supported by Ceiling.
Typical Mobile Home Installation.
Storm Collar
Adjustable Roof
Flashing
Support Box
with built-in
Starter section
Figure 7 – Typical Mobile Home Configuration
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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Operation
Once your Craftsbury is set in place, connected, and
assembled, you are ready to light a fire.
Hearthstone Stoves tests each wood stove 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
other factors particular to your installation.
▌WARNING:
HOT WHILE IN OPERATION. KEEP
CHILDREN, CLOTHING AND FURNITURE
AWAY. CONTACT MAY CAUSE SKIN
BURNS.
Please read this entire chapter before lighting your
first fire. It explains the controls and features of your
wood stove, how to choose firewood, and how to
break-in your stove and use it on a daily basis.
CONTROLS AND FEATURES
Before lighting any fires, become familiar with the
location and operation of your stove's controls and
features and learn how to use them. For your own
safety, do not modify these features in any way.
Removable Door Handle
The front door handle is held in place with a spring-
loaded ball bearing. If the handle does not stay in
place it can be adjusted. To do so, use a slotted
jeweler’s screwdriver to adjust the setscrew on the
metal end of the handle. Turn the setscrew
clockwise to increase the tension or
counterclockwise to decrease.
FRONT DOOR HANDLE: The front door allows you
to load wood into your stove. To open the door, lift
the handle to the 10 o’clock position and pull the
door. To latch the door, lower the handle to the 7
o’clock position. Pull on the door to make sure it is
properly latched. The wooden handle can be
removed or left in place.
PRIMARY AIR CONTROL: This feature is located
on the lower left front of the stove, under the ash lip.
The primary air control allows you to regulate the
amount of air entering the firebox. Generally
speaking, the more air allowed into the firebox, the
faster and hotter the rate of burn; conversely, less
air creates a slower burn. Pull the lever out, away
from the ash lip to open the primary air control; push
the lever in under the ash lip of the stove to close
the primary air control.
ASH PAN DOOR & ASH PAN: Open the ash pan
door by lifting up on the handle bar and allowing the
door to fall into the open position. The ash pan tray
can now be easily removed by carefully pulling it
straight out, use fireplace gloves if hot ashes or
coals are present. You can now empty ashes that
have been sifted into the tray through the grate in
the firebox. After you have properly emptied the
ashes into a covered, noncombustible container,
push the ash pan all the way into the stove and
close the ash door by lifting it up and locking it in
place by pulling down on the handle bar.
Do not operate the stove unless the ASH PAN
DOOR is tightly closed. This could cause the
stove to overheat and damage the components
of the stove.
It is best to remove ashes when the stove is cold. If
the ash pan is warm, use protective fireplace gloves.
Exercise extreme caution when handling, storing or
disposing of ashes.
C
ONTROL HANDLE
R
ONT DOOR HANDLE
P
RIMARY AIR
A
SH DOOR
A
SH LIP
FRONT DOOR
FLUE COLLAR
FRONT VIEW
HIGHLOW
PRIMARY AIR
CONTROL HAND
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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CHOOSING FIREWOOD
Your Craftsbury Wood Heater is designed to only
burn firewood-also known as cordwood.
▌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
MATERIALS AS FUEL; THEY ARE NOT SAFE.
DO NOT BURN GARBAGE.
The quality of your firewood affects heat output,
duration of burn and performance of your stove.
Softwoods generally burn hotter and faster, while
hardwoods burn longer and produce more coals.
Density and moisture content are two critical factors
to consider when purchasing wood for your stove.
The following is a list of wood species and their
relative BTU (British Thermal Unit) content. The
higher the BTU’s the longer the burn. Firewood with
higher BTUs is generally considered more ideal for a
wood stove.
HIGH: Apple, Black Birch, Hickory, Locust, White
Oak, Black Beech, Mesquite
MEDIUM HIGH: White Ash, Beech, Yellow Birch,
Sugar Maple, Red Oak
MEDIUM LOW: Black Ash, White Birch, Grey Birch,
Elm, Norway Pine, Pitch Pine, Black Cherry, Soft
Maple, Tamarack
LOW: White Pine, White Cedar, Balsam Fir, Spruce,
Aspen, Basswood, Butternut, Hemlock
Moisture content also plays a key role in the
performance of your stove. Wood freshly cut from a
living tree (green wood) contains a great deal of
moisture. As you might expect, green wood has
difficulty burning and should be seasoned before
using it in your wood stove. To properly season
green wood, it should be split, stacked and allowed
to air dry for a period of one year.
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 for
stacking, an old Vermonter said, "The spaces
between the logs should be large enough for a
mouse to get through, but not for the cat that's
chasing it."
Do not store Firewood within the stove's
specified clearances to combustible materials!
BUILDING AFIRE
Once you understand the controls of your wood
stove and have chosen the appropriate firewood,
you are ready to start a fire.
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.
The soapstone on the back and bottom in your
firebox is intended to prevent thermal stress; leave it
in place in the firebox at all times.
When you light your first fires, the wood stove will
emit some smoke and fumes. This is normal “off-
gassing” of the paints and oils used when
manufacturing 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 will
end once the stove is “cured”.
During the break-in fires you will not be heating
the stove to the maximum temperatures you will
be once the stove is seasoned. Due to this you
may notice a small amount of black liquid
dripping from the bottom of the stove. This is
due to incomplete combustion of the wood and
the condensation within the stove. This liquid
will only last for the first couple of fires. After
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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this the dripping will stop. You may want to
place a noncombustible material under the stove
to protect your hearth until your break-in fires
are complete.
BUILDING ABREAK 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 pattern over the newspaper.
Kindling should consist of about ten pieces
of very dry wood split to approximately 1/2"
(13 mm) in diameter by roughly 10" (254
mm) long.
2. Fully open the primary air control by pulling
the lever fully out, towards you.
3. Light the paper under the kindling. Leave
the door slightly ajar momentarily until the
kindling has started to burn and draft begins
to pull.
4. Close the door and allow the fire to burn.
Keep the front door and ash pan door closed
while the stove is in use. Make sure the
grate is in the closed position.
5. KEEP A WATCHFUL EYE ON YOUR
STOVE to maintain a steady, low-heat fire.
Your first and subsequent break-in fires
should make the stove warm but not hot to
the touch. At most, a few small chunks of
split cordwood should be added to the fire to
reach safe break-in temperatures.
6. Once the stove is warm but not hot to the
touch, close the primary air control and
allow the fire to die out completely.
7. Let the stove return to room temperature.
Your first three break-in fires should be built and
maintained as outlined here. Your patience will be
rewarded with a properly seasoned stove.
NOTE: Because of the cool flue gas temperatures
present during the break-in procedure, creosote may
build up quickly. We recommend a visual inspection
(and cleaning if necessary) of your stovepipe and
chimney once the break-in procedure is completed.
NORMAL OPERATION
If your stove is not used continuously or has not
been 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 with
normal operation. We recommend one break-in fire
at the start of each heating season. Prior to loading
the stove, make sure the ash grate is closed and the
ash pan door is tightly closed. If the ash grate is left
open or the ash door is loose, the stove will over-fire
and could be damaged.
BUILDING AFIRE FOR EVERYDAY USE
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 pattern over the newspaper.
Kindling should consist of about ten pieces
of very dry wood split to approximately 1/2"
(13 mm) in diameter by roughly 10" (254
mm) long.
2. Fully open the primary air control by pulling
the lever straight out from under the ash lip.
3. Light the paper under the kindling. Leave
the door slightly ajar momentarily until the
kindling has started to burn and draft begins
to pull.
4. Close the door and allow the fire to burn.
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 from
the glass in front in order for the air-wash
system to work properly. Otherwise, keep
the door and ash door tightly closed while
the stove is in use.
6. Once the fire is burning well, use the primary
air control to regulate the desired rate of
burn. Pulling the lever out, away from the
stove front opens the PRIMARY AIR
CONTROL for a high rate of burn or pushing
it under the ash lip the stove will produce a
low rate of burn.
Note: When opening the door to reload or re-
arrange 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 of
hot, red coals reduces smoking time and will
bring fresh fuel up to a high temperature
rapidly.
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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BURN RATE
HIGH BURN: Fully load the firebox with wood on a
bed of hot coals or on an actively flaming fire and
fully open the primary air control. A high burn rate is
recommended once or twice a day to fully heat the
stovepipe and chimney, which will help minimize
creosote accumulation.
MEDIUM BURN: Set the primary air control to a mid-
range setting by pulling the air control about half way
out. This will be the appropriate setting for the
heating needs of the area being heated. A medium
burn rate should be the typical setting and is
preferable if the stove is to be left unattended.
LOW BURN: Close the primary air control for a low
burn rate. A low burn rate over extended periods of
time is not advisable as it may promote the
accumulation of creosote. The venting system
should be inspected frequently if low burn rates are
maintained consistently.
CLEAN BURN:After reloading with wood, burn the
stove with 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.
OVER-FIRE CAUTION
Over-firing means the stove is operating at
temperatures 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. Symptoms
of 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 an
over-fire situation as follows:
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. Some
installations may require more than one damper.
INAPPROPRIATE FUEL: Do not burn coal
kiln dried lumber, driftwood, wax logs or anything
other than natural cordwood.
OPERATOR ERROR: Make sure all the
gaskets are in good condition. Replace worn out or
compressed gaskets. Do not burn the stove with the
front or ash doors in the open position.
Monitoring the temperature is the best way to
determine that the stove is over-firing. If you
suspect that your stove is over-firing, contact your
dealer immediately. Damage done by over-firing is
not covered by your warranty. Results of over-firing
can include: warped or burned out internal parts,
discolored or warped external parts, and damaged
enamel.
NOTE: ANY SYMPTOMS OF OVER-FIRING WILL
VOID YOUR WARRANTY!!
REMOVAL AND DISPOSAL OF ASHES
Ashes are best removed when the stove is cool. In
the morning before adding additional fuel is a good
time for ash removal. Use protective fireplace
gloves when the pan is warm. Exercise extreme
caution when handling, storing or disposing of
ashes.
To remove ashes from the firebox, sift the ashes
across the open ash grate using an ash hoe, ash
shovel, or other suitable implement. Wearing the
fireplace gloves, open the ash door by lifting the
handle bar up and allow the ash pan door to drop
into the open position. Remove the ash pan by
pulling the handle on the ash pan and sliding it
carefully out of the stove. Dump the ashes as
described below. If needed, the pan can be used as
a scoop to remove any ashes still remaining in the
ash dump area. Re-insert the ash pan by pushing it
in all the way. Wearing the fireplace gloves, lift the
ash door and secure it by pushing down the handle
bar.
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 the
ashes to cool. Do not place the ash disposal
container on a combustible surface or vinyl flooring,
as the container will be hot!
Pending disposal, place the closed ash container on
a noncombustible floor or on the ground, well away
from all combustible materials. Ashes should be
retained in the closed container until all cinders have
thoroughly cooled.
Ashes should NEVER be placed in wooden or
plastic containers, or in paper or plastic bags, no
matter how long the fire has been out. Coals within
a bed of ashes can remain hot for several days once
removed from the firebox.

Maintenance
MONITORING STOVE TEMPERATURES
Monitor the stove temperatures with a stove
thermometer (available from your dealer) placed on
the top center of the stove. The thermometer could
read as high as 600°F (427°C) on high burn and
300-400°F (149°C-204°C) on low burn.
Do not over-fire the stove. (Refer to page 19).
CREOSOTE FORMATION AND NEED FOR
REMOVAL
When combustion of the wood is incomplete due to
smoldering, low temperature fires, it produces tar
and other organic vapors, which combine with
expelled moisture to form creosote. These
creosote vapors condense in the relatively cool
chimney flue of a slow-burning fire. As a result,
creosote residue accumulates on the flue lining.
When ignited, this creosote makes an extremely hot
fire, which may damage the chimney or even
destroy the house. When burning wood, the
chimney connector, and chimney should be
inspected at least once every two months during
the heating season to determine if a creosote
buildup has occurred.
To prevent the buildup of creosote:
1. Burn the stove with the primary air control
fully open for 30 minutes daily to burn out
creosote deposits from within the stove and
the venting system.
2. After reloading with wood, burn the stove
with 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.
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 the risk of a chimney fire.
The venting system must be inspected at the stove
connection and at the chimney top. Cooler
surfaces tend to build creosote deposits quicker, so
it is important to check the chimney at the top
(where it is coolest) as well as from the bottom near
the stove.
Accumulated creosote should be removed with a
cleaning brush specifically designed for the type of
chimney in use. A certified chimney sweep should
be used to perform this service. Contact your
dealer for the name of a certified chimney sweep in
your area (your dealer may be a certified sweep!).
It is also recommended that before each heating
season the entire system be professionally
inspected, cleaned and repaired, if necessary.
Use of chimney sweeping logs, sprays, or powders
may aid in the mechanical cleaning process,
however, they should not be used as a substitute
for the inspection and brushing of the flue and
stovepipe.
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 a
tight seal and improved stove performance.
Contact your dealer for a gasket kit, which includes
instructions, and gaskets for your stove.
To replace door gaskets, first pull out the old gasket
with needle nose pliers. Clean any debris from the
gasket channel with a wire brush. Apply a thin,
continuous bead of the gasket cement to the
prepared channel and push the new gasket into
place without stretching or bunching the gasket
material. Cut off any excess rope gasket with sharp
scissors. The door should be shut immediately to
fully press the gasket into place and assure a
positive seal.
The Craftsbury requires the use of the following
gaskets sizes:
GLASS: 46-1/4 inches of 3/16" (4.8mm) diameter
rope gasket
Hearthstone Quality Home Heating Products, Inc. ®Craftsbury Model 8390
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