HearthStone Tula User manual

Tula Model 8191
Manual: 6400-40464
R:203/8/2017
(Model 8191)
Woodstove
OWNER'S MANUAL
Installation And
Operating Instructions
SAVE THIS OWNER’S MANUAL
FOR FUTURE REFERENCE
PLEASE READ THIS ENTIRE OWNER’S MANUAL BEFORE YOU INSTALL AND USE YOUR
NEW 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 INSTALLATION
INSPECTION IN YOUR AREA.

Hearthstone Quality Home Heating Products, Inc ® Tula Model 8191
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Notes on Stove Operation and Efficiency
Rating:
You have purchased a Hearthstone Tula 8191 tested to EPA Method 28, 28A and 5H, 40 CFR Part 60 where applicable.
This stove is certified to comply with the U.S. Environmental Protection Agency 2015 particulate emissions standard and is
not approved for sale after May 15, 2020. It is certified at 2.55 gr/hr emission rate and under specific test conditions has
been shown to deliver heat at rates ranging from 11,455 to 29,301 Btu (output).
This wood heater has a manufacturer-set minimum allowable low burn rate that must not be altered. It is against federal
regulations to alter this setting or otherwise operate this wood heater in a manner inconsistent with operating instructions in
this manual.
Please refer to the Warranty section of this manual for registration instructions. In case of warranty claims, please contact
the point of original sale or the nearest authorized Hearthstone dealer. All warranty claims are processed by our dealer
network. Authorized Hearthstone dealers can be located at www.hearthstonestoves.com.
This heater is designed to burn natural wood only. Higher efficiencies and lower emissions generally result when burning air
dried seasoned hardwoods, as compared to softwoods or to green or freshly cut hardwoods. DO NOT BURN: Garbage,
lawn clippings, material containing rubber (including tires), materials containing plastic, waste petroleum products paints or
paint thinners, asphalt products, materials containing asbestos, construction or demolition debris, railroad ties, pressure
treated wood, manure or animal remains, salt water driftwood or other previously salt water saturated materials, unseasoned
wood, paper products, cardboard, plywood or particleboard. This prohibition against burning these materials does not
prohibit the use of fire starters made from paper, cardboard, saw dust, wax and similar substances for the purpose of starting
a fire in an affected wood heater. Burning these materials mat result in a release toxic fumes or render the heater ineffective
and cause smoke.
Following the maintenance guidelines set forth in this manual will help insure the efficient use of your wood heater and
minimize visible emissions. Having you stove inspected by a trained professional on a regular basis will greatly increase the
potential for recognizing potential impacts to efficiency.
Proper draft is important to the efficient operation of your heater. Refer to the Normal Operation section of this manual for
information regarding adequate draft. Both excessive and sub-minimum draft can affect the efficiency of your wood heater.
Excessive draft can lead to over-consumption of fuel, lower overall heating capacity of the stove and potential over firing.
Low draft can result in inefficient burns, low heat output, expulsion of smoke into the living area when stove doors are
opened and an increased potential for build-up of flammable materials in the flue.
Efficiency:
Efficiency was captured using EPA Method 28-5H and weighted using CSA B415-10 methodology. A weighted average was
used to calculate the overall efficiency across all of the 4 burn rate categories using the higher heating value (HHV).
To maximize the efficiency of your wood stove make sure it is sized properly for the space you plan to heat. An oversized
stove will often be forced to burn at a lower and dirtier burn rate. Consult with your dealer for sizing and correctly placing the
stove in your home. An incorrectly placed stove can greatly reduce efficiency. Maximizing the efficiency of your stove will
heat your house quickly, burn cleaner and use less wood.
Refer to the Choosing Firewood section of this manual for appropriate fuel selection. Seasoned firewood is typically at or
near 20% moisture content. This can be measured with any number of hand-held moisture meters available through your
local hearth shop. Follow instructions included in the meter you purchase to measure fuel wood moisture content. Burn only
dry, seasoned wood as using wet wood will greatly reduce your efficiency.
CO Emissions:
The Tula 8191 has the following CO emission rates by burn level: Category 1 - 0.46%, Category 2 - 0.44%, Category 3 -
0.62% and Category 4 - 0.59%. In general, the higher burn rate that can be safely maintained without over-firing the stove
the cleaner the stove will operate. Wet wood or unapproved fuel described above can greatly affect the emissions of a wood
burning stove.
Smoke/Fire/CO Detectors:
It is highly recommended that smoke and CO detectors be installed throughout the heated space when a wood burning
heater is installed. Be certain to install these devices not only in the area where the wood appliance is located, but also in
bedrooms, hallways leading to other areas of the house and all common areas of the heated space. Check the batteries in
these devices and assure operation by performing whatever test operations are recommended by the manufacturer.

Hearthstone Quality Home Heating Products, Inc ® Tula Model 8191
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Table of Contents
INTRODUCTION.....................................................................................................................3
CODES...................................................................................................................................................................4
SAFETY INFORMATION ............................................................................................................................................4
PERIODIC CHECKLIST .............................................................................................................................................5
EMERGENCY PROCEDURES ....................................................................................................................................5
SPECIFICATIONS ..................................................................................................................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 ................................................................................................9
OUTSIDE AIR SUPPLY...........................................................................................................................................10
VENTING COMPONENTS &CONFIGURATION REQUIREMENTS...................................................................................10
INSTALLING IN AMOBILE HOME.............................................................................................................................14
OPERATION.........................................................................................................................15
CONTROLS AND FEATURES...................................................................................................................................15
CHOOSING FIREWOOD..........................................................................................................................................16
BUILDING AFIRE..................................................................................................................................................17
NORMAL OPERATION............................................................................................................................................17
MAINTENANCE....................................................................................................................20
CREOSOTE FORMATION &REMOVAL .....................................................................................................................20
GASKETS.............................................................................................................................................................20
DOOR GASKET REPLACEMENT PROCEDURES:.......................................................................................................20
LATCH ADJUSTMENT PROCEDURES:......................................................................................................................21
GLASS .................................................................................................................................................................21
GLASS REPLACEMENT PROCEDURES: ....................................................................................................................21
VERMICULITE PANEL REMOVAL OR REPLACEMENT.................................................................................................22
TROUBLESHOOTING..........................................................................................................25
TROUBLESHOOTING GUIDE ...................................................................................................................................26
REPLACEMENT PARTS &OPTIONAL ACCESSORIES.................................................................................................27
SAFETY LABEL ...................................................................................................................28
WARRANTY............................................................................................................................29

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Introduction
Thank you for purchasing a HASE Tula woodstove
from 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 and
maintenance requirements of a catalytic device. The
Tula blends modern technology with the unique
beauty and qualities of steel. We trust that you will
appreciate the quality of this handcrafted product.
Your Tula woodstove burns very efficiently, and
produce a large amount of heat. However, you
should not consider your Tula the primary heat
source for your home. The Tula’s large glass window
allows you to enjoy the fire from a variety of
locations in the room.
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.
A qualified heating technician may need this owner’s
manual as a reference when installing this stove in
your home. There are national, state, and local
building codes that direct the technician on how to
install your stove. These codes stipulate the
dimension of stovepipe and clearances to walls,
ceilings, hearth, and other combustible surfaces.
The codes exist to reduce the risk of fire. Failure to
follow these instructions can result in fire, property
damage, bodily injury, and even death.
Install the stove in a safe, open area, away from
traffic flow, doors, and hallways. If possible, try to
install the stove near an existing chimney and
chimney connector. It is extremely important to
install this stove with the proper clearance from
combustible surfaces. You can purchase specific
connector pipe and special wall coverings as
specified by this manual and the NFPA 211 code to
protect combustible surfaces. As a general rule,
keep furniture, drapes, curtains, wood, paper, and
other combustibles at least 36 inches (92 cm) away
from the stove. Never install the stove in or near a
storage 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 not
install your stove in a poorly insulated area. This is
inefficient and would likely result in higher fuel
usage.
SAFETY NOTICE:
AN IMPROPERLY INSTALLED STOVE CAN
RESULT IN A HOUSE FIRE. FOR YOUR SAFETY,
CAREFULLY FOLLOW THE INSTALLATION
DIRECTIONS. CONTACT LOCAL BUILDING OR
FIRE OFFICIALS ABOUT RESTRICTIONS AND
INSTALLATION INSPECTION IN YOUR AREA.
The safety of your stove will depend on many
factors, 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.
Contact your dealer for any necessary warranty
service.
This stove is warranted by:
Hearthstone Quality Home Heating Products, Inc®
317 Stafford Ave.
Morrisville, Vermont 05661, USA
www.Hearthstonestoves.com

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CODES
When you install your Tula wood stove, it is
imperative that you adhere to all Federal and local
codes. Obtain these codes from either of the
following sources:
American National Standards Institute, Inc. (ANSI)
1430 Broadway
New York, NY 10018
www.ansi.org
National Fire Protection Association, Inc. (NFPA)
Battery March Park
Quincy, MA 02269
www.nfpa.org
If you are installing your Tula in a mobile or
manufactured home, follow the guidelines described
in the Manufactured Home Construction and Safety
Standard, Title 24 CFR, Part 3280 (United States).
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, follow these safety
precautions:
Never modify this stove in any way.
Never burn kiln dried, painted or treated wood in
this 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 or
invigorate the fire. These fuels will cause
dangerous burning conditions in the stove. Keep
all 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 to
elevate the fire.
Never allow logs in the firebox to hit the glass
when the door is closed.
Never slam the door or use the door to force
wood in to the stove.
Never over-fire your stove. (See page 18)
Never put articles of clothing or candles on a hot
stove.
Never connect the stove to a flue used by
another appliance.
Other safety guidelines:
Keep all combustible items such as furniture,
drapes, clothing, and other items, at least 36"
(0.92 m) from the stove (See page 8)
Install a smoke detector, preferably in an area
away from your wood stove.
Keep a fire extinguisher handy. We recommend
the type rated "A B C."
Dispose of ashes properly. (See page 19)
Keep children and pets away from the stove
when it is burning; they could be seriously
injured by touching a hot stove.
Clean your chimney system as needed. (See
page 20)
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 not
there 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 back-
draft 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 exhaust
house air.
5. There is excessive condensation on
windows in the winter.
6. A ventilation system is installed in the
house.
If these or other indications suggest that infiltration
air is inadequate, additional combustion air should

Hearthstone Quality Home Heating Products, Inc ® Tula Model 8191
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be provided from the outdoors. Outside combustion
air can be provided to the appliance by using the
optional outside air kit #91-53900
PERIODIC CHECKLIST
Perform 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.
At the Beginning of Every Other Month:
Depending upon your use of the stove, visually
inspect the chimney connector and chimney for
creosote. (see page 20)
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 to
page 20.)
At the End of Every Season:
Dismantle the chimney connector and clean it
thoroughly. Replace any pieces that show signs
of 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 if
worn, frayed, cracked or extremely hard.
Inspect and replace cracked or damaged
vermiculite panels (see page 22).
EMERGENCY PROCEDURES
If you have a stovepipe or chimney fire, follow these
instructions:
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 door closed!
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 OF SUCH FIRES CAN CAUSE
INSTANTANEOUS STEAM AND SERIOUS BODILY
HARM.
Once the chimney fire expires, leave the primary air
control closed and let the fire in the stove die out
completely. Inspect the stove, stovepipe, and
chimney 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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Specifications
Maximum Heat Output:
30,000 per hour of cordwood (based on
independent laboratory test results).
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, floor
plan, stove placement, quality of the fuel and
other conditions may limit the heating ability of
the stove.
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 of
wood, moisture content, packing density and
other factors. As a constant for comparison and
test purposes, we are assuming 20 lbs. (9.1 kg)
of seasoned hardwood per cubic foot of firebox
volume).
Maximum Log Length:17” (43.2cm), vertically
Stove Dimensions:
Height: 50.453" (128.15cm)
Width: 19.875" (50.48cm)
Depth: 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: 291 pounds (132 kg)
Crate Dimensions: H-63” W-33” L-25” or
160.02cmx83.82cmx63.5cm (add 4” or 10.2cm
for pallet).
Optional Equipment:
Outside Air Kit 91-53900
Mobile Home Lockdown Kit- 91-99910
Figure 1 –Tula Dimensions

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Installation
UNPACKING
Hearthstone packages your Tula stove with the
greatest care so that it ships safely. Under certain
circumstances, however, damage may occur during
transit and handling. When you receive the Tula,
carefully unpack and inspect the stove and all
accompanying parts. Ensure you remove the
corrugated paper padding from the flue collar and
baffle area. Ensure that all parts are included in the
accessory box. If any parts are damaged or missing,
please contact your authorized Hearthstone dealer
immediately.
PACK LIST
1- Tula Model 8191 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 and
stovepipes will have the required clearance from
combustible materials that are near the stove.
Combustibles include walls, floor, ceiling, and
chimney chase. You must carefully consider the
clearances to all of these combustibles before
actually connecting your stove.
If the floor is made of combustible material, then a
non-combustible floor protector is required between
the floor and the stove. An example of a non-
combustible floor protector is a hearth constructed
with a continuous layer of tile, brick, slate, glass or
another 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 the
listing of your pipe with UL for the correct
clearances.
The diagrams in this manual represent typical
installations, but are specific to the Simpson Dura-
Vent DVL brand.
Clearances to NFPA Code 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 Code 211 for specifications
and complete details. You can obtain this
information directly from the NFPA.
National Fire Protection Agency
Batterymarch Park
Quincy, MA 02269
1-800-344-3555
1-617-770-3000
www.nfpa.org
HEARTH REQUIREMENTS &FLOOR
PROTECTION
Ensure you protect combustible flooring with a
covering of noncombustible material. The Tula does
not require an insulated hearth pad. The floor
protection must extend beyond the body of the
stove at the minimum as follows:
* 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.
Figure 2 –Hearth Dimensions
Note: Dimensions shown in the previous figure are
measured from the body of the stove, or as indicated from
the edge of the firebox opening.

Hearthstone Quality Home Heating Products, Inc ® Tula Model 8191
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COMBUSTIBLE SURFACE REQUIRED CLEARANCES
It is very important to follow minimum clearances for chimney connectors to combustibles such as walls and
ceilings when installing the stove near combustible surfaces.
Figure 3 –Clearance to Combustibles
Parallel
Corner
Clearances
E
F
G
H
I
Single wall Connector - Inches
15
12
20.5
25.0
11
Single Wall Connector - Centimeters
38
31
52.1
63.5
28
Double Wall Connector - Inches
15
7
14.5
25.0
11
Double Wall Connector - Centimeters
38
17.8
36.8
63.5
28
Alcove Clearances (inches)
Unprotected Surfaces
Protected Surfaces (NFPA-211)
Minimum alcove width
50” – 127cm
See NFPA-211
Maximum alcove depth
48” –122cm
See NFPA-211
Min. Alcove ceiling from floor with single wall connector
81” –206cm
See NFPA-211
Min. Alcove ceiling from floor with double wall connector
77” –196cm
See NFPA-211

Hearthstone Quality Home Heating Products, Inc ® Tula Model 8191
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CHIMNEY CONNECTOR SYSTEMS AND CLEARANCES