Woodstock Soapstone Keystone User manual

WOODSTOCK SOAPSTONE STOVES
OWNER’S MANUAL
KEYSTONE MODEL 204
PALLADIAN MODEL 202
Woodstock Soapstone Company, Inc.
66 Airpark Road, West Lebanon, NH 03784
Toll Free 1-800-866-4344 • www.woodstove.com Rev 0320
Tested To UL 1482-2011 7th Edition
Listed By PFS Corporation
Model 204 Keystone Model 202 Palladian
Tested and Listed by

OUR PROMISE
We are sure you will enjoy your new stove. During the first six months
that you own it, test its performance and experience the comfortable
warmth of soapstone. If you are not thoroughly delighted with the
beauty, quality, and energy efficiency of your stove, you may return it for
a full refund, including the cost of return freight. This is the best con-
sumer protection plan in the industry.
EPA APPROVAL
This Manual describes the installation and operation of: 202 Palladian
Catalytic Soapstone Stove & 204 Keystone Catalytic Soapstone Stove .
Model 202 Palladian Catalytic Soapstone Stove & 204 Keystone
Catalytic Soapstone Stove meet the U.S. Environmental Protection
Agency’s cordwood emission standard for wood heaters sold after May
15, 2020. Under specific test conditions, this stove has been shown to
deliver heat at rates ranging from 9,989 to 46,437 BTU/hr., and average
emissions of 0.85 grams/hr.
The Keystone/Palladian model contains a catalytic combustor, which
needs periodic inspection and replacement for proper operation. It is
against the law to operate this woodstove in a manner inconsistent with
the operating instructions in this manual, or if the catalytic element is
deactivated or removed.
This wood heater has a manufacturer-set minimum 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.
LISTING TO UL #1482
Model 202 Palladian Catalytic Soapstone Stove & 204 Keystone
Catalytic Soapstone Stove has been tested to UL Standard #1482 7th
edition 2011 for safety, and is listed by PFS Corporation. UL Standard
#1482 is the standard for testing solid fuel heating appliances which is
universally recognized by all national building regulatory agencies
(SBCC, BOCA, ICBO) and individual states.
Please Note: Tested and Listed for US installations only
LIMITED WARRANTY
Your Woodstock Soapstone Stove will be carefully inspected before ship-
ment. We will replace any part which is defective in material or workman-
ship, free of cost, for a period one year from the date of purchase. If a defect
is discovered, please contact Woodstock Soapstone Company, Inc. for
instructions regarding return or replacement of the defective part.
CATALYTIC COMBUSTOR
WARRANTY
The catalytic combustor in your Keystone/Palladian Woodstove is fully
warranted for three years from the date of purchase against any defect in
workmanship or materials that prevent the combustor from functioning
when installed and operated properly. The catalytic combustor is addi-
tionally warranted for three years from the date of purchase for any
deterioration in the stainless steel substrate material. For instructions
regarding return or replacement of the catalytic combustor, please con-
tact:
Woodstock Soapstone Company, Inc.
66 Airpark Road
West Lebanon, NH 03768
Phone: [phone] • Web: www.woodstove.com
Tested and Listed by

MODEL 204 KEYSTONE &
MODEL 202 PALLADIAN CATALYTIC
TABLE OF CONTENTS
WARRANTY INFORMATION/CERTIFICATIONS............ Inside Cover
EPA Certification, UL Listing, Warranty, Catalytic Combustor Warranty
INSTALLATION....................................................... 1-12
Installation, Location, Chimneys, Fireplace Installation, Clearance Table, Wall
Protection, Floor Protection, Mobile Home Installation
OPERATION............................................................13-16
Setting up Your Stove, Seasoning Your Stove, Starting a Fire and Establishing
Draft, Engaging the Catalytic Combustor, Reloading & Overnight Burning, Ash
Removal, Surface Thermometer, Overfiring, Daily Use, The Fall Away Handle,
Firewood
CATALYTIC COMBUSTOR........................................ 17-21
How your Combustor Works, Inspection & Cleaning, Replacement, Catalytic
Probe Thermometer, Frequently Asked Questions, Catalytic Combustor
Warranty Information
MAINTENANCE..................................................... 22-24
Stove, Stone & Glass Cleaning, Gasket Replacement, Routine Checks, End Of
Season Maintenance, Creosote
TROUBLESHOOTING............................................... 25-27
SAFETY................................................................. 28-29
Overview, Installation, Smoke & The Chimney, Heat, Ash Removal,
Precautions, Emergency Procedures
PARTS LIST & DIAGRAMS......................................... 30-33
SPECIFICATIONS................................................... Back Cover

INSTALLATION
For over two centuries, New Englanders have heated their homes with soapstone stoves. A properly installed and
operated soapstone stove will warm your home and delight your eye for a lifetime.
Read this entire manual carefully. It explains how to install your Woodstock Soapstone Keystone or Palladian
Wood Stove safely and how to operate it correctly and efficiently. The clearances and procedures recommended in
this guide are in compliance with the recommendations of the National Fire Protection Association (NFPA), the
Underwriters Laboratories (UL), and the U. S. Environmental Protection Agency (EPA). You may feel some of them
are very stringent, but they should be followed. They were designed to protect you, your home, and the
environment. Improper installations are a major cause of serious fires. Failure to follow instructions may result in
property damage, bodily injury, or death.
Before installing a woodstove, check your local building codes and any requirements established by your insurance
company.
You may need a local building permit to install your stove. Any changes in your home must comply with building
codes. If the codes have not been fully updated, you may want to check with the Building Inspection Department or
your local Fire Department. A qualified stove installer should be aware of any changes and updates to local and state
codes and may be best suited to handle your installation work.
Many chimney sweeps are qualified installers. If you are unfamiliar with sweeps or need to locate a certified sweep
in your area, you can check listings at www.csia.org (Chimney Safety Institute of America). Builders and contractors
are another option. In some cases, homeowners install their own stoves. Before installing your stove, please review
carefully the stove installation, clearance, and safety information in this manual. Woodstock Soapstone has NFI
(National Fireplace Institute) certified woodburning specialists on staff and available to answer any questions you
may have about your installation. If you have questions, please call us toll free at 1-800-866-4344.
You should notify your insurance company that you are using a woodstove. Before you light your first fire, have a
local building inspector and your insurance representative inspect, and approve in writing, your installation.
LOCATION
A stove which is centrally located will heat the greatest area of your home. Heat
should be able to circulate easily into nearby rooms. Placing your stove near an open
stairway or register in the floor will help transfer heat to other rooms.
Other installation considerations are:
•Clearance to Combustibles
•Adequate Space for Wood Loading and Ash Removal
•Room Traffic Patterns
Most people install their stove in a room they use frequently where they can enjoy the
beauty and comfort of the stove. This also helps in ease of monitoring and reloading
the stove as needed.
A well planned placement will enhance your enjoyment of your stove and may save
installation costs.
The best location for a chimney and
woodstove is in the center of the
house. The chimney will be
warmer, draft will be better, and
radiant heat will be distributed
more evenly.
ALCOVE INSTALLATIONS
The Model 202 & 204 Palladian & Keystone Wood Stoves are not approved for an alcove installation.
An alcove is described as an area less than 512 cubic feet, which is equivalent to an 8’x8’x8’ space.

CHIMNEYS
Your chimney is a critical component of your wood heating system. A properly designed and constructed chimney will
help to provide safe and efficient woodstove operation. Hot exhaust rising up through the chimney also pulls combus-
tion air into the stove through the air damper. If a chimney is too short, or the flue too large, the hot exhaust will cool
and slow down. This can lead to poor stove performance, smoke spillage, back puffing, and even creosote build up in
the chimney itself. An excessively tall chimney could lead to a strong draft, which may make the fire difficult to control
with the stove damper. This could result in over firing the stove and lead to damage to the cast iron components as well
as the catalytic combustor. Whether you are installing a new chimney, or adapting an existing chimney to your wood-
stove, close attention to chimney height, flue size, and location should be considered.
Chimney Flue Sizing:
Keystone and Palladian stoves have 7” flue collars and are approved for the use of 7” or
6” vent pipe. If upsizing needs to occur due to an existing chimney the following general
rules apply:
1. Interior Chimney (no walls of the chimney exposed to the outside below the roofline):
the inside cross-sectional area of your chimney should be no more than 3x the cross-
sectional area of the woodstove flue collar.
2. Exterior Chimney (if there are one or more walls exposed to the outside below the
roofline) - The flue should be no more than 2x the cross-sectional area of the flue collar.
Recommendation: Woodstock Soapstone recommends the Keystone and Palladian wood
stoves, with either the 6” or 7” flue collar, a maximum of 8 inch x 10 inch rectangular or
10 inch round flue tile for an inside chimney . For an outside chimney, an 8 inch x 8 inch
square or 8 inch round would be the largest recommended. The smallest size we recom-
mend is 6 inches round. DO NOT VENT THE PALLADIAN OR KEYSTONE INTO A
CHIMNEY OF LESS THAN 6 INCHES IN DIAMETER.
Note: For flues that exceed the recommended area, a stainless steel chimney liner is rec-
ommended.
Height Requirements:
The chimney must extend 3 ft. above the point where it passes through the roof and
must also be 2 ft. higher than any roof surface or obstruction within 10 feet (measured
horizontally) of the chimney. You should check your local building codes for any other
requirements.
The recommended minimum chimney height is 15 feet from the flue collar of the stove to the top of the chimney. This
includes connector pipe and chimney pipe. There may be other factors to conform to code for clearances on the roof,
high wind, high altitude, etc., that may make the minimum height undesirable or a violation of
building codes.
CHIMNEY TYPES
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
There are two acceptable types of chimneys: Lined Masonry Chimneys and Class A, Pre-fabricat-
ed Metal Chimneys rated to 2100° F. Masonry chimneys must meet all applicable codes for a
safe installation.
Lined Masonry Chimneys:
Always have the chimney inspected prior to your stove installation. If your chimney is not lined
with appropriately sized clay flue tiles, or the clay tiles are old, cracked, damaged or otherwise
compromised, a stainless steel chimney liner or poured liner will be required. Depending on the
condition of your flue or clay tiles, the stainless steel liner may need to be wrapped in a high
temperature insulation blanket. A liner may also be recommended if your flue is too large for the
draft to flow properly (please refer to the section on chimney sizing). Our customer service
department can answer any questions regarding the use of a liner and/or insulating blanket.
Call 1-800-866-4344.
Existing chimneys should be checked twice a year for obstructions, creosote deposits, surface
cracks, chemical deterioration and poor construction. Any damage should be repaired immedi-
ately. Two other chimney related areas that should be checked are chimney penetrations at the
floor or ceiling joists, and at the roofline. There should be at least 2 inches of clearance between
Installing a Stainless Steel
Liner in a Masonry Chimney
Chimneys must
extend a minimum
of 3’ above roof
penetration...
... and a minimum of 2’
above the highest point
within 10’.
Terra Cotta Tile Lined
Masonry Chimney

the chimney and floor joists or other combustible materials. Poor flashing between the chimney
and the roof line can cause leaks and deterioration of chimney mortar.
You should make preliminary checks, but if you have any doubts, or are unfamiliar with chim-
ney construction, cleaning, or maintenance, have a local fire official or certified chimney profes-
sional inspect your chimney. If repairs are required, be sure to use someone who is knowledge-
able in chimney work and familiar with local code requirements.
In addition: All brick or cinder block chimneys should have clean out access with a tight fit-
ting door. Masonry chimneys should have a wash at the top. All chimneys should have a cap to
keep out rain and snow and to minimize downdrafts caused by wind.
Passing Through A Combustible Wall:
With an exterior chimney, in most cases the chimney connector (or stove pipe) will need to pass through a combustible
wall. The following are acceptable methods:
A. Use a section of Solid Insulated Prefabricated Metal Chimney to connect to the chimney - Use a section of insulated
prefabricated 2100° Class A chimney pipe listed to UL 103 HT (at least 1” of insulation or greater) the same inside diameter
as the stove pipe and maintain a 9” air space between the wall of the prefabricated chimney and the combustible wall. This
section of chimney pipe can be supported by a sheet metal plate securely fastened to the combustible wall, with a hole cut in
the middle of it. This will close the gap around the chimney pipe and the framed opening. (See Diagram A Below)
B. Build a solid brick surround around a tile liner - Frame a 3.5” thick brick surround into the combustible wall you need to
pass through. Maintain a minimum 12” brick separation from the clay liner to combustibles. The minimum 5/8” thick clay
liner should be cemented in place and run from the outer surface of the brick to the inner surface of the chimney. (See
Diagram B Below)
C. There are also UL Listed kits available that are specifically designed for passing through a combustible wall. For more
information on these kits, please contact Woodstock Soapstone Company. Please note: there are several UL listed wall pass
through kits available, always follow the manufacturers specific installation instructions. (See Diagram C Below)
For other methods, please refer to NFPA 211.
REMEMBER, UNPROTECTED SINGLE OR DOUBLE WALL STOVE PIPE SHOULD NOT PASS THROUGH A COMBUSTIBLE WALL OR CEILING TO
CONNECT TO THE CHIMNEY. YOU MUST USE AN APPROVED METHOD WHICH PROVIDES GREATER PROTECTION THAN SINGLE OR
DOUBLE WALL PIPE.
Prefabricated Metal Chimneys:
For high efficiency, freestanding woodstoves, like your Woodstock Soapstone stove, a Prefabricated
Metal Chimney must be listed as Class A and carry a UL Listing of 103 HT (high temperature). The
“UL 103 Type HT Class A” prefabricated chimney will have a temperature rating of 2,100° F.
There are prefabricated chimney systems that are approved to 1,700° F and are generally used with
fireplace inserts or factory built fireplaces. These ARE NOT suitable for use with your Woodstock
Soapstone stove.
At the point of the first penetration of a combustible surface (i.e., wall or ceiling) all subsequent venting components
need to be prefabricated “UL Type HT Class A”. If your prefabricated chimney goes through a living space it must be
enclosed, and that enclosure must conform to clearance standards for the prefabricated chimney. Your chimney must
pass through your roof and extend above the roof line in accordance with code standards. Please refer to height require-
ments on Page 2.
Connecting your stove to a
masonry thimble.
The minimum clearance for a single wall
metal stovepipe and terra cotta thimble at the
chimney connection is 12”
A.
Using a Prefabricated Metal Chimney section
to connect to an existing masonry chimney
located behind a combustible wall Use a UL listed and approved wall pass thru kit.
B.
Refractory
Cement
Insulated
section of
factory built
chimney
Sheet
Steel
Supports
9”
9”
9”
9
Refractory
Cement
Fireclay Thimble
12”
12”
12”
12
Stainless Steel
Connector
C.
UL listed
insulated
thimble
Minimum required
air space
Listed wall
protector &
cover shield
UL 103 HT Stainless
Chimney Connection

PREFABRICATED CHIMNEY CONFIGURATIONS
The diagrams below represent the most common and acceptable installations using prefabricated chimney pipe. The nec-
essary components are listed and shown in their appropriate locations. These components are Class A listed to U.L.
103HT (tested to 2100 degrees F.) Only components listed to UL 103HT can be used to install your wood stove.
Installation instructions are described below as examples only. More detailed instructions are available through
Woodstock Soapstone or the pipe manufacturer. ALWAYS FOLLOW THE MANUFACTURER’S SPECIFIC INSTALLA-
TION INSTRUCTIONS.
Installation 1- Flat ceiling through the roof
First, determine where the stove will be placed. Pay close attention to all required
clearances for the stove and connector pipe. Next, use a plumb line to locate the
Finish Ceiling Support in the ceiling above. Cut the appropriate sized hole in the
ceiling and frame in the necessary supports to secure the ceiling support. Install the
pipe adapter onto the first section of chimney pipe, and lower them into the Ceiling
support. Use an insulation shield in the attic to keep any insulation away from the
pipe. If the attic is a living space the chimney pipe must be fully enclosed. As the
pipe extends through the roof, install the appropriate flashing and storm collar to
keep the weather out. As the height of the chimney increases to meet code, it may be
necessary to install a roof brace (typically recommended at 5’ intervals). All chim-
neys should have the appropriate cap installed at the top to reduce wind and weath-
er related downdrafts as well as deter any animals from building nests. The connec-
tor pipe should extend from the flue collar of the stove to the pipe adapter at the
ceiling support. The male (crimped) end should always point down toward the stove. Be sure that each joint has enough
overlap for a secure connection. All connections should be fastened with screws, including at the flue collar and pipe
adapter. (Please refer to the manufacturers full set of installation instructions)
Installation 2- Pitched/Cathedral Ceiling through the roof
Determine where the stove will be placed. Be sure all clearance requirements are
satisfied. Choose the appropriate support for your installation (Support box or Roof
support package). Use a plumb line to locate the support in the ceiling above. Cut
the appropriate sized hole in the ceiling and install the necessary framing to secure
the support. Install the support according to its specific instructions.. Be sure that
the support hangs down below the ceiling far enough to maintain proper clearance
to the connector pipe (steeper slopes require more pipe below the ceiling). Install
the pipe adapter to the first section of chimney pipe and lower it into the support
box (or connect it to the bottom of the roof support). As the pipe extends through
the roof install the appropriate roof flashing and storm collar. Install the proper
chimney pipe lengths to meet code and recommended chimney height. It may be
necessary to install a roof brace for stability. Always install the appropriate cap to
the top of the chimney. Double wall connector pipe is recommended for installa-
tions that have 10’ or more from the stove to the chimney. Be sure that all joints in
the connector pipe are secure and fastened with screws, including at the flue collar and chimney pipe adapter. (Please
refer to the manufacturers full set of installation instructions)
Installation 3- Through the wall
This installation requires the use of an insulated wall thimble to penetrate a com-
bustible wall. Typically a 9”-12” chimney pipe and pipe adapter will pass through
the thimble and make the connection between the interior connector pipe and an
insulated tee with a clean out on the outside of the bulding. The tee and chimney
rising up from it rest on a wall support designed to bear the weight of the chimney.
Install lateral supports as specified as the chimney rises along the exterior wall. The
appropriate flashing and storm collar should be installed if the chimney penetrates
an eave or overhang. An offset of 15 or 30 degrees may also be used to go around an
overhang. As the chimney extends above the roof to meet code it may be necessary
to install a roof brace. (Please refer to the manufacturers full set of installation
instructions).
Stovepipe (Connector Pipe):
Connector pipe is either single wall (sheet metal) or double wall (sheet metal outer pipe with a stainless steel inner
pipe). We strongly recommend 22 gauge pipe (26 or 28 gauge is too thin for use with a wood stove). The connector pipe
should be 6 inch diameter to match the flue collar of the stove. If your connection to either a masonry chimney or prefab-
ricated chimney system is more than 8 feet tall, we recommend the use of double wall connector pipe. If you need to
Installation 1- Flat ceiling through the roof
Installation 2
Pitched/Cathedral Ceiling through the roof.
Class A
Chimney Pipe
Installation 3- Through the Wall
Attic Insulation Shield

reduce clearances for your connector pipe installation, double wall connector pipe would be recommended. All pipe con-
nections, including at the flue collar, must be secured with screws. DO NOT USE GALVANIZED SINGLE WALL PIPE.
Connector pipe is designed to connect your stove to your masonry lined or approved prefabricated chimney system.
CONNECTOR PIPE SHOULD NEVER BE USED AS A CHIMNEY AND SHOULD NEVER PASS THROUGH A
COMBUSTIBLE WALL, CEILING, WINDOW, CLOSET, OR ROOF. At the point where your stovepipe meets the
chimney, you must either vent into a masonry chimney with approved non-combustible transition, or a prefabricated
chimney system with a specially designed transition piece.
FIREPLACE INSTALLATION
Your Model 202 Palladian or 204 Keystone wood stove can be installed in front of an
existing fireplace with a lintel opening of 26.5” high or taller. Installing the Palladian or
Keystone soapstone stove in a fireplace setting is a great way to enjoy the view of the fire,
while greatly increasing the efficiency and reducing heat loss to the fireplace chimney.
We do not recommend placing the stove inside the fireplace, as it would be difficult to
access the control levers, load the stove, and much of the heat radiating off the stove
would not circulate into the room.
The preferred method is to install a stove in front of a fireplace and run a stainless steel
‘flex’ liner down the chimney, connecting it to the stove at the fireplace. Chimneys with
large flues should be re-lined to achieve proper draft. If the chimney does not have a tile
lined flue or if the tile is cracked or compromised, an additional insulating material must
be used.
It is important that there be a secure connection between the stove and the flue
liner. It is NOT acceptable to simply install a plate in front of the fireplace and run
a stovepipe through it. The stove pipe must connect with the liner for a continu-
ous outlet to the top of your chimney.
Stainless steel flex liner kits come in a variety of lengths and are readily available. These
kits include a flexible stainless steel pipe, tee with snout & clean out, a block-off plate for
the top of the chimney and a cap. Please contact Woodstock Soapstone Company for
more information on these kits. ALWAYS FOLLOW THE MANUFACTURER’S SPE-
CIFIC INSTALLATION INSTRUCTIONS.
If the fireplace surround is clad in wood trim, the proper clearance to a combustible
will need to be maintained. See illustrations to the left. An unprotected wood mantel
needs to be a minimum of 30” from the top of the stove. If a mantel shield is installed
that clearance can be reduced to 12”.
DO NOT VENT YOUR WOOD STOVE THROUGH A FACTORY BUILT FIRE-
PLACE UNLESS IT IS SPECIFICALLY LISTED FOR SUCH AN INSTALLATION .
Most factory-built fireplace chimney systems are only rated to 1,700° F, which is not sufficient for a freestanding wood
burning stove.
FLOOR PROTECTION REQUIREMENTS
Your Woodstock Soapstone stove must be set on an approved hearth or floor protection.
The hearth protects your floor from two hazards:
• Heat Transfer: Heat radiation from the bottom, front, and sides of the woodstove
• Ember Protection: Sparks and hot coals that may fall out during ash removal and
reloading of firewood
DO NOT INSTALL YOUR WOODSTOCK SOAPSTONE STOVE ON A COMBUSTIBLE SUR-
FACE (WOOD, CARPET, LAMINATE, OR VINYL, FOR EXAMPLE).
Even if you have a stone or tile overlay on wood, it is still considered combustible since the surface materials will not
provide adequate heat transfer protection.
Cap
Top Plate
Stainless
Liner
Keystone Stove in front of an
existing fireplace
30” clearance off stove
top without protection.
12” with a proper
mantel shield
Cleanout Tee
& Snout
Wood
trim
18”min. to combustible trim or
12” with rear heat shield
Wood
trim

Your stove MUST sit on one of the following:
•A hearth pad of solid masonry (brick or tile on concrete and mortared in place)
•A prefabricated hearth pad listed to UL approved standards. These pads are made to be placed on an existing floor.
Woodstock Soapstone Company has a good selection of these pre-made pads.
•A custom designed pad constructed of approved non-combustible materials which will protect the floor from sparks,
hot coals, and ashes; and prevents heat from being transferred onto the floor beneath.
IFYOU CHOOSE TO BUILD YOUR OWN HEARTH PAD
1) Start with a plywood base or sub-floor.
Over this apply:
2) a layer of insulating board with an R-Value of at least 0.59. Depending on the mate-
rial you choose, the insulating board can be as little as 1/2” thick. For additional
help with material specifications, contact Woodstock Soapstone Company at 1-800-
866-4344 or at [email protected].
Over this apply:
3) 1/4” or greater of a decorative, non-combustible material such as tile, slate, stone,
or brick. Use mortar or grout to set the material in place, then grout the seams.
Specifications for floor protectors may be listed in terms of R-value, K-value, or C-value.
To convert K or C value to R-value use the following formulas.
K to R: R=1/K x T (Thickness of the alternate material in inches)
C to R: R=1/C
Once alternate materials have been converted to R-values, the values of multiple layers can be added to determine the
combined protection. If the overall R-value meets or exceeds the specified 0.59 then the materials are acceptable.
DO NOT USE: Old-fashioned stove boards that were commonly sold in hardware stores as they DO NOT have ade-
quate protection and ARE NOT approved for primary floor protection under your stove.
Hearth Rugs also ARE NOT meant to be used as primary hearth protection. These are made to be used in addition to
an approved hearth, and are used as auxiliary decorative protection. They are not made to be a substitute for an
approved hearth pad.
Hearth Sizing:
Clearances for your Palladian/Keystone stove on the front, back and sides must be taken into consideration when
determining the placement and size of your floor protection. Vertical dimensions can be added to horizontal dimensions
on all but the loading door side to equal the clearances needed to a combustible floor surface. For example, if you are
required to have 10 inches in front of the stove for clearance and you have a raised hearth that measures 5 inches high,
the stove can sit 5 inches from the edge to equal the 10 inches required. The floor protection must extend under any hori-
zontal connector pipe and 2 inches beyond each side.
You can build your own hearth pad to fit
your decor. The hearth pad must meet a
minimum R value of .59
trim
board
1/4” slate or tile
3/4” plywood
or subfloor
non-combustible
insulation board
R-values of common hearth materials:
Ceramic Tile 1/4” 0.020
Granite 1/4” 0.020
Slate 1/4” 0.025
Cement Mortar 1/2” 0.025
Cementboard 1/4”-1/2” 0.20-0.39
Common Brick 2.25” 0.450
Common Brick 4.00” 0.800
Mineral/Ceramic Fiber Board 1/2” 1.10-1.470
Please Note: Always check with the manufacturer of the hearth material used to
verify the R or K value.
K Values cannot be added, convert to R value before adding multiple layers.

PARALLEL INSTALLATION HEARTH PAD
A. Floor protection in front of stove using 7” flue collar = 8”
Floor protection in front of stove using 6” reducer= 10”
B. Floor protection at loading door side = 16”
C. Floor protection non-loading door side = 8”
D. Floor protection behind stove = 8”
Minimum hearth size in a parallel installation is:36”D x 49”W
Recommended size is: 48” D x 60”W
CORNER HEARTH PAD
Minimum hearth size in a corner installation must be 54”x54” (with the front corner cut off). NOTE: On a hearth of mini-
mum size, the stove will not be centered left to right, but will meet the minimum required clearances.
Calculating a Corner Hearth Pad (per NFPA 211):
A=C x 1.414 + W/2 + D + Front Hearth Requirement
A =distance from corner to the front of the hearth pad
C = clearance from rear corner of appliance to wall (12” w/ rear heat shield)
1.414 = a constant
W/2 = one half the appliance width (12.5”)
D=appliance depth (20”)
Front Hearth Clearance= 10”
Example:
Palladian/Keystone with the Rear Heat Shield & Pipe Shield
& 6” Flue
A= 12” x 1.414 + 12.5” + 20”+10” A= 59.50”
Note: If using the 7” Flue A= 57.50”
WALL PROTECTION
The Keystone & Palladian models have been tested to UL standards for
clearances to combustible walls. The minimum clearances to unprotected walls are as follows:
Minimum clearances with no heat shields to unprotected combustible walls:
From the back-------------------30”
From the sides-------------------18”
Do not assume that a wall is not combustible because it has a nonflammable surface. A wall with any combustible
materials in it must be considered combustible. For example, a brick wall attached to wood studs is considered a com-
bustible wall. Over time, heat will pass through bricks and heat the wood, lowering the ignition temperature of the
studs, possibly resulting in a fire. As waves of radiant heat energy meet a combustible object, heat is absorbed and the
temperature of the object is raised, which can result in spontaneous combustion. Similarly, wood-framed walls which are
covered with tile, stone or fire-rated sheetrock must be considered combustible. Fire-rated sheetrock is also considered
combustible due to the paper covering.
If you wish to install your stove closer to a combustible wall than standard clearances will permit, you can either attach
a UL approved stove & pipe shield, or mount a protective non-combustible shield on the wall.
Stove and Pipe Shields:
Clearances can be reduced by attaching a UL approved heat shield and pipe shield. Woodstock Soapstone Company
carries heat shields specifically designed for this stove. When using one or both of these shields,the clearance behind the
stove can be reduced to 14.5 inches when top venting. The clearance behind the pipe can be reduced to 10 inches.
A=57.5”
or
59.5”
CORNER HEARTH PAD
Palladian/Keystone shown above
centered left to right
16”
8” with 7” flue
10”with 6” flue
8”
8”
Hearth pad must extend at least 16” on the loading door
side and 8” on non-loading door side and back. Front
will be either 8” or 10” depending on the flue size.
25”
20”