(Model 8190)

Woodstove
OWNER'S MANUAL
Installation And
Operating Instructions

SAVE THIS OWNER’S MANUALFOR FUTURE REFERENCE

PLEASE READ THIS ENTIRE OWNER’S MANUAL BEFORE YOU INSTALL AND USE YOURNEW TULA WOOD STOVE.
If this room heater is not properly installed, a house fire may result.
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 INSTALLATIONINSPECTION IN YOUR AREA.

Tula Model 8190
Manual: 6400-40464
R: 3 - 7/28/2011

Intentionally Blank

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Tula Model 8190

Table of Contents
INTRODUCTION ..................................................................................................................... 3
CODES...................................................................................................................................................................4
SAFETY INFORMATION ............................................................................................................................................4PERIODIC CHECKLIST .............................................................................................................................................5
EMERGENCY PROCEDURES ....................................................................................................................................5SPECIFICATIONS .................................................................................................................. 6
INSTALLATION ...................................................................................................................... 7
UNPACKING ............................................................................................................................................................7
PACK LIST ..............................................................................................................................................................7
INSTALLING YOUR STOVE........................................................................................................................................7
HEARTH REQUIREMENTS & FLOOR PROTECTION......................................................................................................7
COMBUSTIBLE SURFACE REQUIRED CLEARANCES ...................................................................................................8
CHIMNEY CONNECTOR SYSTEMS AND CLEARANCES ................................................................................................9OUTSIDE AIR SUPPLY ...........................................................................................................................................10
VENTING COMPONENTS & CONFIGURATION REQUIREMENTS ...................................................................................10
INSTALLING IN A MOBILE HOME .............................................................................................................................15

OPERATION ......................................................................................................................... 16
CONTROLS AND FEATURES ...................................................................................................................................16
CHOOSING FIREWOOD ..........................................................................................................................................17
BUILDING A FIRE ..................................................................................................................................................18
NORMAL OPERATION ............................................................................................................................................18

MAINTENANCE .................................................................................................................... 21
CREOSOTE FORMATION & REMOVAL .....................................................................................................................21GASKETS .............................................................................................................................................................21
DOOR GASKET REPLACEMENT PROCEDURES: .......................................................................................................21
LATCH ADJUSTMENT PROCEDURES: ......................................................................................................................22
GLASS .................................................................................................................................................................22
GLASS REPLACEMENT PROCEDURES: ....................................................................................................................22
VERMICULITE PANEL REMOVAL OR REPLACEMENT .................................................................................................23

TROUBLESHOOTING .......................................................................................................... 27
TROUBLESHOOTING GUIDE ...................................................................................................................................28
REPLACEMENT PARTS & OPTIONAL ACCESSORIES .................................................................................................29

SAFETY LABEL ................................................................................................................... 30

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Tula Model 8190

Introduction
SAFETY NOTICE:

Thank you for purchasing a HASE Tula woodstovefrom Hearthstone Quality Home Heating Products.
This stove will provide years of comfortable heat.
This stove also provides the benefits of advanced
technology in wood burning without the cost andmaintenance requirements of a catalytic device. The
Tula blends modern technology with the unique
beauty and qualities of steel. We trust that you willappreciate the quality of this handcrafted product.

AN IMPROPERLY INSTALLED STOVE CANRESULT IN A HOUSE FIRE. FOR YOUR SAFETY,
CAREFULLY FOLLOW THE INSTALLATIONDIRECTIONS. CONTACT LOCAL BUILDING OR
FIRE OFFICIALS ABOUT RESTRICTIONS AND
INSTALLATION INSPECTION IN YOUR AREA.

The safety of your stove will depend on manyfactors, some of which include: distance to
combustible objects, correct venting, and adequate
chimney maintenance. Should you have any
questions, do not hesitate to contact your dealer for
additional information.

Your Tula woodstove burns very efficiently, andproduce a large amount of heat. However, you
should not consider your Tula the primary heatsource for your home. The Tula’s large glass window
allows you to enjoy the fire from a variety oflocations in the room.

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 and maintenance. It
contains extremely important information so keep it
handy and refer to it often.

This stove is warranted by:Hearthstone Quality Home Heating Products, Inc®
317 Stafford Ave.
Morrisville, Vermont 05661, USA
www.Hearthstonestoves.com

A qualified heating technician may need this owner’s
manual as a reference when installing this stove inyour home. There are national, state, and local
building codes that direct the technician on how to
install your stove. These codes stipulate thedimension of stovepipe and clearances to walls,
ceilings, hearth, and other combustible surfaces.
The codes exist to reduce the risk of fire. Failure tofollow these instructions can result in fire, property
damage, bodily injury, and even death.
Install the stove in a safe, open area, away fromtraffic flow, doors, and hallways. If possible, try to
install the stove near an existing chimney andchimney connector. It is extremely important toinstall this stove with the proper clearance fromcombustible surfaces. You can purchase specificconnector pipe and special wall coverings as
specified by this manual and the NFPA 211 code toprotect combustible surfaces. As a general rule,
keep furniture, drapes, curtains, wood, paper, andother combustibles at least 36 inches (92 cm) awayfrom the stove. Never install the stove in or near astorage location for gasoline, kerosene, charcoal
lighter fluid or any other flammable liquids.
Install the stove in your central living area to allow
heat to radiate naturally to distant rooms. Do notinstall your stove in a poorly insulated area. This isinefficient and would likely result in higher fuelusage.

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Tula Model 8190

CODES

Never allow logs in the firebox to hit the glass
when the door is closed.

When you install your Tula wood stove, it isimperative that you adhere to all Federal and local
codes. Obtain these codes from either of thefollowing sources:

Never slam the door or use the door to force
wood in to the stove.
Never over-fire your stove. (See page 19)

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

Never put articles of clothing or candles on a hot
stove.

www.ansi.org

Never connect the stove to a flue used byanother appliance.

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

Other safety guidelines:

www.nfpa.org
Keep all combustible items such as furniture,drapes, clothing, and other items, at least 36"(0.92 m) from the stove (See page 8)

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

Install a smoke detector, preferably in an area
away from your wood stove.

SAFETY INFORMATION

Keep a fire extinguisher handy. We recommend
the type rated "A B C."

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

Dispose of ashes properly. (See page 20)
Keep children and pets away from the stove
when it is burning; they could be seriously
injured by touching a hot stove.

Make sure to install your stove:
According to the manufacturer's
recommendations
In accordance with all applicable codes

Clean your chimney system as needed. (Seepage 21)With the proper sized chimney

Outside combustion air may be required if:
1. This solid-fuel-fired appliance does not draw
steadily, smoke rollout occurs, fuel burns
poorly, or back-drafts occur whether or notthere is combustion present.
2. Existing fuel-fired equipment in the house,such as fireplaces or other heating
appliances, smell, do not operate properly,
suffer smoke roll-out when opened, or backdraft whether or not there is combustion
present.
3. Opening a window slightly on a calm
(windless) day alleviates any of the above
symptoms.
4. The house is equipped with a well-sealed
vapor barrier and tight fitting windows and/or
has any powered devices that exhausthouse air.
5. There is excessive condensation on
windows in the winter.
6. A ventilation system is installed in thehouse.

When using your stove, follow these safety
precautions:
Never modify this stove in any way.
Never burn kiln dried, painted or treated wood inthis stove.
Never burn garbage or trash, colored or glossy
paper, solvents, plywood, artificial logs,
cardboard, or driftwood, in this stove.
Never burn coal in this stove.
Never use gasoline, kerosene, charcoal lighter
fluid, or other flammable fluids to start orinvigorate the fire. These fuels will cause
dangerous burning conditions in the stove. Keepall such materials away from the stove.
Never use the stove if the ash pan is damaged,
or not present.
Never use a wood grate or other device toelevate the fire.

Hearthstone Quality Home Heating Products, Inc ®

If these or other indications suggest that infiltration
air is inadequate, additional combustion air should

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Tula Model 8190

be provided from the outdoors. Outside combustion
air can be provided to the appliance by using theoptional outside air kit #91-53900

At 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.
Clean out the inside of the stove thoroughly.
Inspect all door gasket material and replace ifworn, frayed, cracked or extremely hard.
Inspect and replace cracked or damaged
vermiculite panels (see page 23).

PERIODIC CHECKLISTPerform each of these tasks at the specified
intervals.
At the End of Every Week:
Empty ashes from the firebox and ash pan,sooner if the firebox or the ash pan is full.

EMERGENCY PROCEDURESAt the Beginning of Every Other Month:
Depending upon your use of the stove, visuallyinspect the chimney connector and chimney forcreosote. (see page 21)
Check door seals using the "dollar bill test." When the stove is cool, shut the door on a dollar
bill. If the bill pulls out without any resistance,then your stove’s door is not sealing properly. To
tighten the seal, adjust the door latch
mechanism or change the door gasket. (Refer topage 21.)

If you have a stovepipe or chimney fire, follow these
instructions:
1. If the fire is too threatening, leave the area andcall 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 door closed!
WARNING: DO NOT ATTEMPT TO PUT OUT ASTOVEPIPE OR CHIMNEY FIRE BY THROWINGWATER ONTO THE STOVE, STOVEPIPE, OR
CHIMNEY.
THE
EXTREMELYHIGH
TEMPERATURE OF SUCH FIRES CAN CAUSEINSTANTANEOUS STEAM AND SERIOUS BODILY
HARM.

Once the chimney fire expires, leave the primary aircontrol closed and let the fire in the stove die out
completely. Inspect the stove, stovepipe, andchimney thoroughly for any sign of damage before
firing the stove again. You must correct any damage
before using your stove again.

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Tula Model 8190

Specifications
Maximum Heat Output:
30,000 per hour of cordwood (based on
independent laboratory test results).

Stove Dimensions:
Height:Width:
Depth:

Floor Size of Heated Area:
Up to a maximum of 1,300 square feet. Factors
unique to your home can reduce the square
footage the stove will heat. Home insulation
value, number and efficiency of windows, floorplan, stove placement, quality of the fuel andother conditions may limit the heating ability ofthe stove.

41.75" (106.04cm)
19.875" (50.48cm)
17.375" (44.13cm)

Connector Size:
6" (152 mm) diameter
Metal Chimney:6" (152 mm) inside diameter
Masonry Chimney:6” (152 mm) inside diameter(round flue), 8” x 8” (203 x 203 mm) (square
flue)
Actual Weight:

Firebox Capacity:
1.15 cubic feet or 23 pounds (10.5 kg) 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 ofwood, moisture content, packing density andother factors. As a constant for comparison andtest purposes, we are assuming 20 lbs. (9.1 kg)of seasoned hardwood per cubic foot of firebox
volume).

291 pounds (132 kg)

Crate Dimensions:H-49.5” W-32.4” L-24.5” or
126x82.3x62.2cm (add 4” or 10.2cm for pallet).
Optional Equipment:
Outside Air Kit 91-53900
Mobile Home Lockdown Kit- 91-99900

Maximum Log Length: 17” (43.2cm), verticallyFigure 1 – Tula Dimensions

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Tula Model 8190

Installation
Agency (NFPA) approved wall protection system.
Please refer to NFPA Code 211 for specifications
and complete details. You can obtain thisinformation directly from the NFPA.

UNPACKINGHearthstone packages your Tula stove with thegreatest care so that it ships safely. Under certain
circumstances, however, damage may occur duringtransit and handling. When you receive the Tula,carefully unpack and inspect the stove and allaccompanying parts. Ensure you remove thecorrugated paper padding from the flue collar andbaffle area. Ensure that all parts are included in theaccessory box. If any parts are damaged or missing,please contact your authorized Hearthstone dealer
immediately.

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

HEARTH REQUIREMENTS & FLOORPROTECTIONPACK LIST

Ensure you protect combustible flooring with acovering of noncombustible material. The Tula does
not require an insulated hearth pad. The floor
protection must extend beyond the body of thestove at the minimum as follows:

1- Tula Model 8190 Woodstove
1- Accessory Box containing:
1- Fireplace Glove
4- Leveling Feet
1- Owner’s Manual*

INSTALLING YOUR STOVE**

Choose a place to install your Tula woodstove.
Inspect this location to make sure that the stove andstovepipes will have the required clearance fromcombustible materials that are near the stove.
Combustibles include walls, floor, ceiling, andchimney chase. You must carefully consider theclearances to all of these combustibles before
actually connecting your stove.

Installations in Canada require 18” (45.72 cm) of floor
protection beyond the front, or fuel loading opening.
Rear clearance required only if stovepipe runs
horizontally back above the top of the stove.

If the floor is made of combustible material, then anon-combustible floor protector is required between
the floor and the stove. An example of a noncombustible floor protector is a hearth constructedwith a continuous layer of tile, brick, slate, glass oranother non-combustible facing. There is no R-value
requirement.
If you use a close clearance connector pipe, ensure
it is listed with Underwriter’s Laboratories. Check thelisting of your pipe with UL for the correct
clearances.

Figure 2 – Hearth Dimensions

The diagrams in this manual represent typicalinstallations, but are specific to the Simpson DuraVent DVL brand.
Clearances
Surfaces

to

NFPA

Code

211

Note: Dimensions shown in the previous figure aremeasured from the body of the stove, or as indicated fromthe edge of the firebox opening.

Protected

You can reduce the clearances to combustible
surfaces by using any National Fire Protection

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COMBUSTIBLE SURFACE REQUIRED CLEARANCES
It is very important to follow minimum clearances for chimney connectors to combustibles such as walls andceilings when installing the stove near combustible surfaces.

Figure 3 – Clearance to Combustibles
CornerParallelClearances
Single wall Connector - Inches
Single Wall Connector - Centimeters
Double Wall Connector - Inches
Double Wall Connector - Centimeters

E
15
38
15
38

G
20.5
52.1
14.5
36.8

H
25.0
63.5
25.0
63.5

I
11
28
11
28

Unprotected Surfaces Protected Surfaces (NFPA-211)

Alcove Clearances (inches)
Minimum alcove width
Maximum alcove depth
Min. Alcove ceiling from floor with single wall connector
Min. Alcove ceiling from floor with double wall connector

Hearthstone Quality Home Heating Products, Inc ®

F
12
31
7
17.8

8

50” – 127cm
48” – 122cm
72” – 173cm
68” – 183cm

See NFPA-211
See NFPA-211
See NFPA-211
See NFPA-211

Tula Model 8190

CHIMNEY CONNECTOR SYSTEMS AND CLEARANCESHearthstone Quality Home Heating Products, Inc ®

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Double wall connector (close clearance pipe)
which is used with a listed, factory-built “Type HT"chimney or with a masonry chimney to reduceclearances, is available 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.

OUTSIDE AIR SUPPLY(Optional Kit #91- 53900)
You can connect an outside air source directly tothis stove using an optional outside air kit. The
advantage of providing outside air directly to thestove is that the air used by the stove for combustion
is taken from outside the residence rather than fromwithin the room where the stove is located.
The outside air kit for this stove allows for the directconnection of the stove's air intake to a minimum 3"(76 mm) diameter duct (supplied by others) whichleads to the outside of the house. When considering
placement of the duct from the outside of the houseto the hearth, keep in mind the need to avoid
structural members of the house. The outside air kit
attaches to the back of the stove. Refer to the
instructions provided with the kit for installation.

When used in a mobile home, a spark arrester isrequired. (See page 14)
The chimney connector cannot pass through afloor or ceiling, nor any attic or roof space, closet
or similar concealed space. Where venting
requires passage through a wall or partition of
combustible construction, the installation must
conform to NFPA Code 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.
Typical chimney connector clearances are
outlined below. The single wall clearances are
generic; the double wall clearances shown are
specifically for Simpson DuraVent DVL and mayvary with other brands. Check the specifications
from the manufacturer of your connector.

Figure 4 – Outside Air Kit Detail

COMPONENTS OF A VENTING SYSTEMThe International Residential Code (IRC) does notallow the outside air duct to terminate higher than
the appliance. Some building officials also do not
like to see any vertical rise in the duct’s termination.
Hearthstone recommends the termination be at thesame level, or lower than the air intake on the stove.

The complete venting system consists of several
components: chimney connector, wall thimble, wallpass-through, chimney, and liner. It is necessarythat you install all of these components and maintainthe clearances to combustibles discussed earlier toensure a safe stove installation.

Locate the termination of the duct on the outside
wall of the home in such a manner to avoid thepossibility of obstruction by snow, leaves or othermaterial. Screen the termination using ¼” x ¼” meshrodent screen and cover it with a rain/wind proof
hood (flex pipe, outside termination, mesh, and hoodsupplied by others) Contact your dealer foravailability).

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 is 6" (152 mm) diameter, 24
MSG or 25 MSG blued steel connector pipe. Do
not use aluminum or galvanized steel pipe - theycannot withstand the extreme temperatures of awood fire.

VENTING COMPONENTS &CONFIGURATION REQUIREMENTS
DO NOT CONNECT THIS UNIT TO A CHIMNEYFLUE USED BY ANOTHER APPLIANCE

The thimble is a manufactured (or siteconstructed) device installed in combustiblewalls through which the chimney connector
passes to the chimney. It keeps the walls from
igniting. You must use a wall thimble whenSingle wall connector that is at least 24 MSG or
25 MSG blued steel stovepipe.

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installing a chimney connector
combustible wall to the chimney.

throughanecessary increase the chances of draft resistanceand the accumulation of creosote buildup.

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.

In general, you do not need to install a stovepipe
damper with the Tula. Some installations, however,
could benefit from a stovepipe damper, such as atall chimney which can create a higher than normal
draft. In such cases, a damper can help regulate thedraft. The Tula requires a draft between 0.06" and0.1" WC. For drafts above 0.1" WC, install astovepipe damper. Check the draft at stove
installation time.

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.

Remember, the NFPA recommends minimum
clearances for chimney connectors to combustibles
such as walls and ceilings. Once the stove isinstalled at safe distances from these combustible
surfaces, it is also important to maintain theseconnector clearances for the remainder of theinstallation.

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

CONNECTING THE STOVE TO A CHIMNEY
You can install your Tula to a prefabricated metalchimney, or to a masonry chimney.

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

This room heater must be connected to (1) a listed
Type HT (2100° F) chimney per UL 103 or ULC
S629, or (2) a code-approved masonry chimney witha flue liner. The chimney size should not be lessthan the flue collar, or more than three times greaterthan the cross-sectional area of the flue collar.

INSTALLING A VENTING SYSTEM
Attach stovepipe sections to the flue collar and toeach other with the crimped end toward the stove. If
creosote builds up, this allows the creosote to run
into the stove and not on the outside of thestovepipe or onto the stove.

We recommend installing a cleanout tee where
possible to simplify chimney cleaning andmaintenance.

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.
Disregarding the screws can cause joints toseparate from the vibrations that result from acreosote chimney fire.

Connecting to a Prefabricated Metal Chimney
There are two ways to install a prefabricated metalchimney:
An interior installation where the chimney
passes inside the residence through the ceilingand roof.

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

An exterior installation where the chimney
passes through the wall behind the stove thenup the outside of the residence.
Whenever possible, choose an interior chimney. Aninterior chimney heats up 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 the building, so it
typically operates at lower flue temperatures than aninterior chimney and may experience increased
creosote accumulation.

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 must always
rise away from the stove at a minimum of 1/4" perfoot (21mm/m).
We do not recommend long runs of stovepipe toincrease heat dispersal. Longer lengths ofstovepipe, or more connecting elbows, thanHearthstone Quality Home Heating Products, Inc ®

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When connecting the Tula to a prefabricated metalchimney, you must follow, precisely, themanufacturer's installation instructions. Use only
Type HT (2100° F), prefabricated metal chimneys
listed per UL 103 or ULC S629 standards.

oversized flue contributes to the accumulation ofcreosote.
Use the following checklist to ensure that yourmasonrychimneymeets
theseminimum
requirements:

Ensure the size of the prefabricated chimney’s flueis appropriate for the Tula. The Tula requires a 6"
(152 mm) inside diameter flue for new installations.
A 6” diameter flue provides adequate draft andperformance. You can use an 8" (203 mm) diameter
existing flue with a reducer. An oversized flue
contributes to creosote accumulation. (In this case,bigger is NOT better.)

Masonry Chimney wall construction:
Mortared brick or modular block at least 4" (102mm) thick – must use liner
A mortared rubble or stone wall – must use liner
Flue liner options:Tile - minimum wall thickness of 5/8" (16 mm),installed with refractory mortar, and with at least1" (25 mm) air space around the liner
Stainless steel - UL listed 6” diameter, insulated
or wrapped liner, or the space around the liner
filled with vermiculite or suitable material (thesekeep the liner warmer for better performance)
Ensure any equivalent flue liner is a listed
chimney liner system meeting type HTrequirements or other approved material.

When purchasing a prefabricated chimney to installwith your stove, Ensure you 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 required accessories.
Follow the manufacturer’s instructions when
installing the chimney and accessories. In addition,
ensureyou
maintainallmanufacturers’
recommendations for the proper clearances to thechimney.

Interior chimney requirements:
Must have at least 2" (51 mm) clearance to
combustible materials
Must install fire stops at the spaces where thechimney passes through floors and/or ceiling
Any insulation material must be at least 2" (51mm) from the chimney

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 only code approved masonrychimneys containing a proper flue liner.

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

Before connecting to a masonry chimney, hire a
professional to examine the chimney for cracks,loose mortar, and other signs of deterioration andblockage. If the chimney needs repair, complete
them before installing and using your stove. Do notinstall your stove until the chimney is safe for use.

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 theroof within 10 feet (3 m) measured horizontallyfrom the top of the chimney.

Ensure the chimney’s cleanout is complete andworking properly. To avoid a loss of draft, thecleanout door must close completely and provide atight seal. If the cleanout door leaks, the chimney willcool, your stove will perform poorly, and creosote
can form.

The recommended minimum chimney height is 10
feet (3 m) off the floor. The recommended maximum
chimney height is 30 feet (9m).The Tula requires adraft between 0.06” and 0.1” water column. Ensure
your chimney is long enough to provide theminimum draft, and use a damper if your installation
has a required chimney height that provides toomuch draft.

Ensure the size of the chimney’s flue is appropriate
for this stove and that it is not too large. Use amasonry chimney with a maximum 6” Diameter or 8"
x 8" (203 mm x 203 mm) tile size for best results. An

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Tula Model 8190

Figure 5 – Typical Chimney Configurations

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Tula Model 8190

2'-0"MINIMUM

2'-0"
MINIMUM

3'-0"
MINIMUM

3'-0"
MINIMUM10'-0"

Figure 6 – Chimney Height Requirements

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Tula Model 8190

FLOOR, CEILING, AND ROOF WHEN INSTALLINGAND USING YOUR STOVE.

INSTALLING IN A MOBILE HOME
Follow these special requirements for installing yourstove in a mobile home.
Install the stove in accordance with 24 CFR,
Part 3280 (HUD)
Permanently attach the stove to your mobile
home’s floor. Use Hearthstone’s Kit #91-99900 Mobile Home Lock Down Kit. Installation
instructions are included with the kit.

Figure 7 - Lock Down Kit Detail
Install a Mobile Home Chimney & Connector
Kit*.
Each kit must include:
Stainless spark arrester cap, storm collar,
Adjustable vented flashing – 0/12 – 6/12,
Two 24” chimney pipes, 24” support box
with built-in starter section and trim.

Figure 8* (any UL or ULC approved equipment is acceptable)

CAUTION: REMOVE THE CHIMNEY
TRANSPORTING THE MOBILE HOME!

WARNING: DO NOT INSTALL IN A SLEEPINGROOM IN A MOBILE HOME.

WHEN

CAUTION:
MAINTAINTHE
STRUCTURALINTEGRITY OF THE MOBILE HOME WALLS,Hearthstone Quality Home Heating Products, Inc ®

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Tula Model 8190

Operation
Once your Tula is installed, you are ready to light a
fire.

ASH PAN: (This becomes hot during operation. It isbest to remove the ash pan only after the stovecools). To access the ash pan you must open thefirebox door. Open the firebox door and locate theash pan handle. To remove the ash pan, grip thehandle, and then pull it out. The lid for the ash pan isstored under the ash pan. Use the lid to contain theashes during transport for disposal. The ash pancollects the ash residue from each fire and when full,allows you to remove the ash conveniently from thestove. Clear the firebox of ashes periodically. Sift theashes through the grate in the bottom of the firebox
into the ash pan.

Every installation, season’s firewood, and operator’s
technique varies. Learn how to use you stove mostefficiently for your installation. We can give you thebasic principles, but only you can ensure maximizing
the potential of your stove while also operating it
safely.
WARNING: HOT WHILE IN OPERATION! KEEP
CHILDREN, CLOTHING AND FURNITURE AWAY.
CONTACT MAY CAUSE SKIN BURNS.

Read this entire chapter before lighting your first fire.
It explains the controls and features of your woodstove, how to choose firewood, and how to use yourstove on a daily basis.

To replace the ash pan, place the pan lid back into
the bottom of the ash pan receptacle and slide theash pan back into place on top of the lid. Do not
operate the stove unless the ASH PAN is inplace, and properly sealed by the gasket on thefirebox door. A poor seal could cause
overheating and damage 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 (See Figure 9).
For your own safety, do not modify these features inany way. We recommend you use the provided
fireplace glove when the stove is in operation andhot.

PRIMARY AIR CONTROL: The primary air controlrod (1) is located on the lower right side of the stove.
The primary air control allows you to regulate theamount of air entering the firebox. Generally, themore air allowed into the firebox, the faster the rateof burn; conversely, less air creates a slower burn.
For maximum air flow, pull the primary air rod as far
out as possible; push the primary air control rod in
as far as possible for minimum air flow (does not
close completely).

Figure 9 - Controls & Features
FRONT DOOR HANDLE: The firebox door allows
you to load wood into your stove; a fixed handle
operates the door. To open the door, pull out and up
on the handle and swing the door away from thestove. To latch the door, push the door tightly
towards the firebox then continue to push the handle
in and down until it latches shut. Gently pull on thedoor handle to make sure it is properly latched.

Hearthstone Quality Home Heating Products, Inc ®

Figure 10 – Air Control Operation

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Tula Model 8190

CHOOSING FIREWOOD
Burn only natural firewood (known as cordwood) in
the Tula 8190 Wood Heater. This stove is notdesigned to burn other fuels.

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 TO START THE FIRE. DO
NOT USE CHARCOAL, PELLETS, COAL,ARTIFICIAL LOGS OR ANY OTHER MATERIALSAS FUEL; THEY ARE NOT SAFE. DO NOT BURNGARBAGE OR FLAMMABLE FLUIDS.

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

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

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

24
24
24
23.6
23.6

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

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

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

Moisture content also plays a key role in theperformance of your stove. Wood freshly cut from aliving tree (green wood) contains a great deal ofHearthstone Quality Home Heating Products, Inc ®

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Tula Model 8190

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.

may appear on the surface. These changes do notaffect the function of the stove. If a panel breaks
completely, it must be replaced
Avoid the following conditions that can cause theglass, refractory panels, steel or cast iron pieces tobreak:Do not throw wood into the stove.
Do not use the door as a lever to force wood into
the stove.
Do not load wood encrusted with ice into aburning stove - the thermal shock can cause
damage.
Do not use a manufactured log grate. Burn thefire directly on the cast iron bottom of thefirebox.

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."CAUTION: DO NOT STORE FIREWOOD WITHINTHE STOVE'S SPECIFIED CLEARANCES TOCOMBUSTIBLE MATERIALS.

NORMAL OPERATIONBUILDING A FIRE

Prior to loading the stove, ensure the ash grate andthe ash pan are in place.

Once you understand the controls of your woodstove and have the appropriate firewood, you areready to start a fire.

BUILDING A FIRE FOR EVERYDAY USE
1) Open the front door and place five or six
double sheets of tightly twisted newspaperin the center of the firebox. Arrange kindlingin a tee-pee configuration over thenewspaper. Use approximately 10 pieces ofkindling, 1/2" (13 mm) in diameter and 10" to
16" (254 mm to 406 mm) long.

WARNING: NEVER USE GASOLINE, GASOLINETYPE LANTERN FUEL, KEROSENE, CHARCOAL
LIGHTER FLUID, OR SIMILAR LIQUIDS TO START
OR 'FRESHEN UP' A FIRE IN THIS HEATER.
KEEP ALL SUCH LIQUIDS WELL AWAY FROM
THE HEATER WHILE IT IS IN USE.

When you light your first fires, the woodstove will
emit some smoke and fumes. This is normal “offgassing” of the paints and oils used whenmanufacturing the woodstove. 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”.

2) Fully open the primary air control by pulling
it completely out, away from the firebox.
3) Light the paper under the kindling. Leave thefront door slightly ajar momentarily until thekindling begins to burn and draft begins topull.
4) Close the door and allow the fire to burn.

The first few fires of the season may produce otherodors from impurities that exist in the area
immediately surrounding the stove. Some potential
impurities are cleaning solvents, paint solvents,
cigarette smoke, and soot from scented candles, pethair, dust, adhesives, a new carpet, and new
textiles. These odors will dissipate over time. You
can alleviate these odors by opening a few windowsor otherwise creating additional ventilation aroundyour stove. If any odor persists, contact your dealer
or an authorized service technician.

5) Once the kindling is burning, open the front
door and add logs, small at first, to build thefire up. Ensure you keep the logs away fromthe glass in front in order for the air-washsystem to work properly. Keep the front door
and ash pan closed while the stove is in use.
6) Once the fire is burning well, use the primary
air control to regulate the desired rate ofburn. Pull the handle out to open the primary
air control for a high rate of burn; or push it
in for a low rate of burn. The air control does
not close completely.

If you adhere to the operating procedures in thismanual, the steel, cast iron, and refractorycomponents of your stove will give you many yearsof trouble-free use. With use, the color of therefractory panels will change and small fractures

Hearthstone Quality Home Heating Products, Inc ®

Note: When opening the front door to reload or rearrange logs, it is advisable to open the door just a
crack, pause for a moment then open the door

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Tula Model 8190

completely. This procedure allows the firebox toclear of smoke before the door is open fully. In
addition, reloading on a bed of hot, red coals
reduces smoking time and brings fresh fuel up to ahigh temperature rapidly.

thirds of the way in. A medium-low burn rate is the
typical setting and is preferable if the stove isunattended.
LOW BURN: Push the primary air control inward all
the way to the firebox (see figure 10). This closes
the air shutter to its minimum opening. A low burnrate over extended periods is not advisable as it canpromote the accumulation of creosote. Inspect theventing system frequently if using low burn rates
consistently.

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 by pulling it all theway out, away from the firebox. A high burn rate
once or twice a day for 35 to 45 minutes to heat thestovepipe and chimney fully, will help minimize
creosote accumulation.

OVER-FIRE CAUTION
Over-firing means the stove is operating attemperatures above normal temperatures reachedduring High Burns outlined in the BURN RATE
section. Carefully avoid over-firing, as it will damage
the stove. Symptoms of chronic over-firing can
include warped components, short burn times, aroaring sound in the stove or stovepipe, anddiscoloration of the stovepipe. A properly installed
stove using fuel and following operating proceduresas outlined in this manual should not over-fire.
Excessive draft, inappropriate fuel, and operator
error can cause over-firing. Correct an over-firesituation as follows:
EXCESSIVE DRAFT: Contact your local dealer
to have a draft reading taken. Any draft inexcess of 0.1 WC requires a damper in thestovepipe. Some installations may require morethan one damper.

Figure 11 – High Burn Setting
MEDIUM HIGH BURN: With the primary air control
in the open position, push the control rod in one to
one and a half ‘notches’ towards the firebox, orabout one quarter to one third of the way in.

INAPPROPRIATE FUEL: Do not burn coal; kiln
dried lumber, wax logs or anything other thannatural cordwood.
OPERATOR ERROR: Ensure all the gaskets
are in good condition. Replace worn out orcompressed gaskets. Do not burn the stove withthe front door in the open, or partially open
position.
If you suspect that your stove is over-firing,
discontinue use and contact your dealer
immediately. Damage caused by over-firing is notcovered by your warranty. Results of over-firing
can include warped or burned out internal parts,
cracked vermiculite panels, discolored or warped
external parts, and damaged finish.

Figure 12 – Medium Burn Setting
MEDIUM LOW BURN: With the primary air control
in the open position, push the handle inward about
two to two and a half notches, or about half to two

Hearthstone Quality Home Heating Products, Inc ®

ANY SIGNS OF OVER-FIRING WILL VOID YOURWARRANTY!

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Tula Model 8190

other items or trash into the metal container. Do notpour water into the container. Replace thecontainer’s lid and allow the ashes to cool. Neverplace the ash disposal container on a combustible
surface or vinyl flooring, as the container could be
hot!

REMOVAL AND DISPOSAL OF ASHES
Remove ashes only when the stove is cold. Use theprovided protective fireplace glove if the ash pan iswarm. Exercise extreme caution when handling,storing or disposing of ashes.
The ash pan is located behind the firebox door at thebottom of the stove. The ash pan collects burned
ash from a fire and allows you to remove the ash
conveniently from your wood stove. Clear the fireboxof ashes, and do not let them build up too high. You
can leave a thin layer of ashes in the firebox ifpreferred. It is important to prevent ashes frombuilding up around the front door opening or they will
spill out, or they can pack into the gasket channel
and prevent proper sealing. To remove ashes, sift
the ashes across the grate into the ash pan. The ash
pan is easy to remove and has a handle and lid forconvenient disposal of ashes. The lid should be
stored under the ash pan when burning the stove.

Pending disposal, place the closed ash container on
a noncombustible floor or on the ground, well awayfrom all combustible materials, liquid fuels, orvehicles. Retain ashes in the closed container until
all coals thoroughly cool.
If the ashes are disposed of by burial in soil orotherwise locally dispersed, they should be retainedin the closed container until all cinders havethoroughly cooled.
NEVER place ashes in wooden or plastic
containers, in trashcans with other trash, or inpaper or plastic bags, no matter how long thefire has been out. Coals within a bed of ashes
can remain hot for several days once removed
from the firebox.

Dump ashes from the ash pan directly into a metal
container with a tight fitting lid. Do not place any

Hearthstone Quality Home Heating Products, Inc ®

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Tula Model 8190

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

We recommend that before each heating season
you have the entire system professionally inspected,
cleaned and repaired, if necessary.

CREOSOTE FORMATION & REMOVALGASKETS

When wood burns slowly at low temperatures, it may
produce 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, inspect the chimney
connector and chimney at least once every twomonths during the heating season to determine if
there is a creosote buildup.

Replace door gasket material every two to threeseasons, or whenever it becomes deteriorated orloose, and depending on stove use. If the door seal
leaks, a new gasket will ensure a tight seal andimprove stove performance.
We recommend you only use Hearthstone
replacement gaskets when you need to replace yourdoor gasket. Contact your dealer for a gasket kit that
includes instructions, and the gasket for your stove.
Required Door Gasket: PN: 3110-072, 2700 mm(106.3") Length.

If a creosote build-up occurs, inspect the stovepipe
connector and chimney more often, at least monthly
during the heating season to monitor theaccumulation. If a creosote residue greater that 1/4"
(6 mm) accumulates, remove it to reduce the risk ofa chimney fire.

DOOR GASKET REPLACEMENTPROCEDURES:
1. Note the routing of the old gasket before
removal.
2. To replace the door gasket, pull the old rope
gasket out of its channel. Clean all gasket
channels with a small wire brush ifnecessary.
3. Vacuum the inside of the door as required.
4. Route the new gasket exactly like the oldone. Or, start the gasket at one thechannel’s T intersections to the left or right
below the glass.
5. Using no glue, or cement, work your way up
or down and push the new gasket uniformly
into the channel without stretching orcompressing the gasket material.
6. Pinch the gasket into place as necessary.
No glue is necessary.
7. When you reach the channel’s other Tintersection, turn 90° horizontally using thechannel just below the glass. The trailingend of the gasket should end at the opposite
T intersection from where you started.
8. Ensure there are no gaps where the ends ofthe gasket meet itself.
9. Check the gasket seal using the paper test –close the door on a long narrow strip ofprinter paper or newspaper, if it pulls out
without resistance, the seal is not good.
Alternatively, aim a powerful flashlight into
the space around the door from the outside(then look in through the glass at the area

Prevention
Burn the stove with the primary air control fully open
for 35 - 45 minutes daily to burn out creosote
deposits from within the stove and the venting
system.
After reloading with wood, burn the stove with theprimary air control fully open for 15 to 20 minutes.
This manner of operation ensures early engagementof the secondary combustion system that minimizes
creosote buildup in the chimney.
If your glass always remains dirty, your operating
temperatures are too low or your wood is wet;
therefore, there is a higher risk of creosote buildup.
Inspect the venting system at the stove connection
and at the chimney top. Cooler surfaces tend tobuild creosote deposits faster, so it is important tocheck the chimney at the top (where it is coolest) as
well as from the bottom near the stove.
Cleaning
Remove accumulated creosote with a cleaning
brush specifically designed for the type of chimney
in use. We recommend you use a certified chimney
sweep to perform this service. Contact your dealer
for the name of a certified chimney sweep in yourarea (your dealer may be a certified sweep!).

Hearthstone Quality Home Heating Products, Inc ®

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Tula Model 8190

opposite the light – if you see light, the seal
is not good and will leak). The leak will most
likely be where the gasket was not fully
inserted into the channel, or where stretched(thinner), or adjacent to an area where thegasket was compressed (thicker).
10. First, adjust the gasket as necessary byreseating it uniformly. If that does not work,
adjust the latch mechanism (see below) so it
applies more pressure when the door isclosed.

GLASS
The glass used in our stoves is actually not plain
glass, but a tough, clear ceramic material capable ofoperating at temperatures up to 2300° F. Do not
operate the stove with a broken door glass. Do not
abuse the front door by striking or slamming.
When necessary, clean the glass. We recommend
using a damp paper towel dipped in gray ash. Rub
the inside of the glass with a circular motion. When
all the deposits are removed, clean up with windowcleaner or with commercial stove glass cleaners,
which are available from your local dealer. Neverattempt to clean the glass while the fire is burning or
while the glass is hot. Remove deposits by following
the instructions provided with the cleaner. Wipe thecleaner off with a soft cloth, or black & white
newsprint.

LATCH ADJUSTMENT PROCEDURES:
1. Test gasket seal quality with small latch
adjustments first. The curved door geometry
means a little movement goes a long way.
Too much pressure makes the door difficult
to open and close.
2. Loosen mounting bolts with a 10mm wrench
to shift catch assembly to apply more, orless closing pressure to the gasket.
3. If the catch bushing is worn, or seized –contact your Hearthstone dealer for a
replacement.

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 acleaner
specificallymanufactured
forwoodstoves only.
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.

Mounting Bolts

Replace the door glass immediately if broken or
chipped. Contact your local dealer for replacement
glass. The glass kit includes instructions andeverything needed for the repair. If you replace theglass yourself, wear work gloves and safety glasses.

CatchBushing

Required Glass Kit: PN: 91-58900 (Glass withgasket applied).

GLASS REPLACEMENT PROCEDURES:
Follow the instructions included with thereplacement glass kit or:
1. Remove the screws from the glass retainer (usepenetrating oil if necessary). Remove theretainer with the damaged glass from the door.
2. Carefully separate the glass retainer from thedamaged glass and set it aside for reinstallation.
3. Discard the damaged glass.
4. Remove any remaining glass and old gasket
material.
5. Clean the screw holes and place a small amountof anti-seize compound in each one.

Figure 13 Latch Catch Detail
Caution: Do not drop catch into opening!

Hearthstone Quality Home Heating Products, Inc ®

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Tula Model 8190

6. Place the retainer on the gasketed new glass
and place the assembly onto the door.
7. Screw the glass retainer back on the door usinga crisscross pattern. Tighten the screws no morethan 1/8th of a turn after they seat. (The glass
will break at this point if not positioned correctly).
8. After 5 or 6 fires, check the glass retainer
screws, and retighten if necessary.

3. Lift the lower baffle plate (PT) up and off thesecondary air plenum.

4. Tilt front of the lower baffle (PT) down, and slide
it down in front of the secondary air plenum andout of the firebox.

Figure 14 Glass Assembly

VERMICULITE PANEL REMOVAL OR
REPLACEMENT
We expect the refractory panels to have a useful lifeof about 3 to 5 years. If you are experiencing ashorter interval, adjust your loading procedure, orburning technique.
Refer to Figure 14 and the following images andprocedure to remove or replace the vermiculite
refractory panels. Work only on a cold stove.
1. Open firebox door. Remove any accumulated
ashes.
2. Remove the cast iron bottom of the firebox.

Hearthstone Quality Home Heating Products, Inc ®

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Tula Model 8190

5. To remove the side panels (PL/PR), rotate theforward edge in towards the center of the firebox
until the rear edge clears the back panel.

7. Tilt back panel (PB) forward and down – remove
from firebox.

8. To remove the upper baffle panels – Slide thepanels to the right and left to separate the lap
joint. Raise the forward edge of the left section(P1) and move it forward until the rear edge
clears the rear shelf.

6. Maneuver the side panel (PL/PR) so the insidesurface of panel is facing up, and the top edge isfacing you – remove from firebox.

Hearthstone Quality Home Heating Products, Inc ®

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Tula Model 8190

9. Slide the rear edge of the panel down and rotate
it forward out of the firebox. Repeat with the rightsection (P2).

Hearthstone Quality Home Heating Products, Inc ®

10. To install new panels, or to reinstall the existing
panels after cleaning, reverse the previous
procedure.

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Tula Model 8190

P2
P1

PT

PB
PL

PR

Figure 15 – Vermiculite Panel DetailHearthstone Quality Home Heating Products, Inc ®

26

Tula Model 8190

Troubleshootingbuilding is exacerbated if exhaust fans, such as
clothes dryers, bathroom fans or cook stove exhaust
fans, are in operation within the home. Outfitting
your stove with the optional outside air adaptor
connected to an air duct, which leads to the outsideof the building, can correct this problem.

COMMON ISSUES
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, whenlocated close to the top of the chimney can cause
chronic or occasional downdrafts. When selecting asite for a new chimney, consider the placement ofother objects near the proposed chimney location.

If you question whether your stove is producing
adequate heat, the best way to troubleshoot the
problem is to monitor the temperature of the stack
no more than 12 inches (30 cm) above the flue
collar. A 400° F (200° C) stovepipe confirms thestove is supplying sufficient heat. Keep in mind thatyour house itself will regulate room/housetemperatures. How well the walls, floors and ceilings
are insulated, the number and size of windows, thetightness of outside doors, and the construction orstyle of your house (vaulted ceilings or other open
spaces which collect large percentages of heat,ceiling fans, etc.) all are determining factors of room
temperature.

Wind Velocity: Generally, the stronger and steadiera wind, the stronger (better) the draft. However,"gusty" wind conditions can cause erratic
downdrafts. For consistent problems, consider ahigh wind cap, such as the Vacu-Stack.
Barometric Pressure: Chimney drafts are typicallysluggish on balmy, wet or muggy days (lowbarometric pressure). This is a weather-related
phenomenon, which generally is self-correcting as
the weather changes.
Briskness of Fire: The hotter the fire in your stove,
the hotter your chimney and, therefore, the stronger
the draft.

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 draft,which prevents the smoke from rising out thechimney. Oversized flues are also more difficult toheat 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
smoke to pour into the room.

Breaks in the Venting System: An unsealed
clean-out door at the bottom of the chimney, leaky
stovepipe joints, a poor stovepipe-to-thimble
connection, missing caps, or a leaky chimney all cancause inadequate draft.
Seasonal Factors: Early fall and late spring are
generally difficult seasons in which to establish
proper drafts. The colder the outside air is relative toroom temperature, the stronger the draft.

If your chimney is the proper size and a strong draft
is not easily established, there is the possibility thatthe chimney is too cold. Again, hot chimneys
promote stronger drafts. Opening a window briefly inthe room while lighting the stove may help.

OPERATING THE STOVE
As outlined above, there are days when a good draft
is just not easy to establish. The causes are usuallyseasonal factors or a cold chimney. 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.
Sometimes, partially opening a first floor window
briefly will help quickly get draft established.

Other draft guidelines are as follows:
An "AIRTIGHT" HOUSE: The air supply (infiltration)
to the interior of the house may be inadequate if
your home is super-insulated or especially wellsealed. This phenomenon of air starvation within theHearthstone Quality Home Heating Products, Inc ®

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Tula Model 8190

TROUBLESHOOTING GUIDEPROBLEMPOSSIBLE CAUSESOLUTIONSSTOVE SMOKES

Operating TechniqueFully open the primary air control one minute before opening
doors.
Preheat the chimney when first starting a fire. Briefly open awindow in the room containing the stove.
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. Check clean-out
doors.
Disconnect all other appliances and seal openings.

Cold Chimney or reverse
draft
Blocked Chimney

BACK-PUFFING ORGAS EXPLOSIONS

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
UNCONTROLLEDOR SHORT BURN

Unsealed or Open Door
Excessive Draft

INSUFFICIENT
HEAT

Extra Long Chimney
Oversized Chimney
High Winds or Hilltop
Location:
Poor Quality, low Btu
content, or Green Wood
Low Burn Rate
Cold Exterior Chimney
Leaky Stovepipe or
ChimneyToo Much Heat Loss
From House
Excessive Ash Build-up

BLISTERING OFFINISH

Operating Technique
Excessive Draft

Hearthstone Quality Home Heating Products, Inc ®

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 the ash pan more frequently. Increase efficiency ofburns, and avoid using poor quality or green wood.
Close the door tightly or replace the gaskets.
Check the installation. Operate at LOW BURN. Install
stovepipe damper. Draft in excess of 0.1 wc should becorrected with a stovepipe damper(s)Shorten the chimney. Install stovepipe damper(s).
Reline the chimney to the proper diameter.
Install a chimney cap.
Use only air-dried wood, preferably dried at least one year.
Use a wood with a high Btu content if available.
Operate the stove at a higher burn rate.
Reline or insulate the chimney.
Check the installation. Replace with a pre-fabricatedinsulated chimney system or a properly sized masonrychimney.
Add insulation, use energy efficient windows, or caulk
windows, and seal openings in home.
Empty the ash pan more frequently. Increase efficiency ofburns, and avoid using poor quality or green wood.
Do not over-fire the stove. Monitor stove temperatures. Use
seasoned wood only.
Check the DRAFT. A damper may be required. Operate thestove at a LOW BURN range.

28

Tula Model 8190

REPLACEMENT PARTS & OPTIONAL ACCESSORIESPART #DESCRIPTION

3070-000
3070-001
3070-002
3070-003
3070-004
3110-072
3110-073
3160-190
5190-000
5190-005
5190-010
5190-015
6400-40464

REAR VERMICULITE PANELUPPER BAFFLE VERMICULITE PANELLEFT VERMICULITE PANELRIGHT VERMICULITE PANELLOWER BAFFLE VERMICULITE PANELDOOR GASKET ROPE: 20MMX7.8X2700MM
GLASS GASKET ROPE: 20MMX2MMX1850MM
AIR CONTROL GASKETBAFFLE: THROAT, SS
FLUE COLLARSECONDARY AIR PIPE: #1
SECONDARY AIR PIPE: #2
OWNER’S MANUAL

90-99030
91-20900
91-54900
91-58900
91-85900

KIT ASSEMBLIESACCESSORY KIT: GLOVE AND LEVELING FEETVERMICULITE REFRACTORY PANEL SET
ASH PAN AND COVER
GLASS WITH GASKET ASSEMBLY
DOOR ASSEMBLY

91-53900
91-99900

OPTIONAL ACCESSORIESOUTSIDE AIR KIT
MOBILE HOME ANCHOR KITHearthstone Quality Home Heating Products, Inc ®

29

Tula Model 8190

Safety LabelHearthstone Quality Home Heating Products, Inc ®

30

Tula Model 8190

Notes:Hearthstone Quality Home Heating Products, Inc ®

31

Tula Model 8190