Eldorado Stone Sherwood User manual

sherwood
™
WOOD-BURNING FIREPLACE

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INTRODUCTION 3
SAFETY WARNINGS 4
GENERAL INFORMATION 5
PRODUCT USAGE 5
MODIFICATION OF FIREPLACE 5
MANTEL CLEARANCES 5
VENTILATION 5
COMBUSTIBLE CLEARANCES 5
DAMAGED PARTS 5
MAINTENANCE 5
DIMENSIONS 6
PARTS LIST 7
ISOKERN ASSEMBLY GUIDELINES 9
BROKEN COMPONENTS 9
LEVELING & ALIGNING COMPONENTS 9
NOTES 9
RECOMMENDED TOOLS 10
FIREPLACE INSTALLATION STEPS 10
FIREBRICK INSTALLATION 19
FINISHING FIREPLACE EXTERIOR 20
OPERATING INSTRUCTIONS 20
BUILDING A FIRE 20
DISPOSAL OF ASHES 20
3 -YEAR LIMITED WARRANTY 21
Fireplace systems are designed for installation in accordance with the
National Fire Protection Association Standard for Chimneys, Fireplaces,
Vents and Solid Fuel-Burning Appliances (NFPA 211).

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INTRODUCTION
Inviting fireside chats. Sitting fireside in your backyard has never been
easier. Our factory pre-scratched Wood-Burning Fireplace is ready
to be dressed with Eldorado Stone or Brick for the ultimate masonry
appearance.
Image: Sherwood Fireplace shown installed with Eldorado Silver Lining Stacked Stone.
Since its discovery, fire has become much more than an essential element in
our lives—it can set the mood in any environment. Now you can command
the element of fire to enjoy its comfort and ambiance among family and
iends. The Sherwood Fireplace om Eldorado Outdoor creates a focal
point in your open air conversation setting while providing the warmth and
pleasant crackle of burning wood. A design statement, the Sherwood can
be dressed with any stone and accessories to complement and enhance your
outdoor living space. It’s time to rediscover fire.

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SAFETY WARNINGS
Before beginning installation of the Sherwood Fireplace, read these instructions carefully to be sure you
understand them completely. Failure to follow them could cause fireplace malfunction resulting in serious
injury or property damage.
Obtain necessary permits from authorities in your local jurisdiction and comply with all local building codes.
To avoid the risk of damaging fireplace materials and increasing risk of spreading fire, do not use the fireplace
to cook or warm foods.
This unit has not been tested for use with doors. To reduce the risk of injury, do not install doors.
Do not over burn.
This product has not been tested for use with a chase. To reduce the risk of fire, do not install a chase.
Do not pack air spaces with insulation or other materials.
Creosote and soot formation and the need for its removal: When wood is burned slowly, it produces tar and
other organic vapors which combine with expelled moisture to form creosote. The 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. Because of creosote and soot buildup, it is
necessary to inspect and clean the fireplace and chimney prior to use and periodically during the heating season.
Cleaning of the fireplace and the chimney system should be done annually at a minimum. In colder climates,
chimney cleaning may need to be done more often, periodically throughout the heating season.
Before servicing, allow the fireplace to cool. Always shut off any electricity or gas to the fireplace while
working on it.
Never use gasoline, kerosene, gasoline-type lantern fuel, charcoal lighter fluid, or similar liquids to start or
“freshen up” a fire in this fireplace. Keep all flammable liquids at a safe distance from the fireplace.
Burning some fuels (such as charcoal) can be hazardous due to the possibility of producing carbon monoxide,
a colorless, odorless gas. Early signs of carbon monoxide poisoning resemble flu symptoms including headaches,
dizziness or nausea. Overexposure to carbon monoxide can lead to illness and death.
Do not burn large amounts of paper, cardboard, tree branches or building construction materials. The intense
fires these products create may overheat the fireplace thus causing damage to the unit or a potential fire
outside the firebox.
WARNING
CAUTION

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GENERAL INFORMATION
PRODUCT USAGE
The Sherwood Fireplace is designed to burn solid woods or gas outdoors. This unit is not designed to sit directly against combustible
materials. This unit is not designed to be built into a wood structure. The Sherwood Fireplace is designed as an outdoor unit only.
As required due to heat and weight, this unit must be built on a non-combustible concrete slab (code-compliant frost-free footer)
designed to carry the total weight of the entire fireplace and chimney structure along with finished veneer. Approximate weight of
installed unit is 4175 lbs. (excluding stone veneer finish).
Use solid wood, plumbed propane or natural gas fuel only.
BTU gas set used with this product must be approved for outdoor use.
MODIFICATION OF FIREPLACE
Modifications to the Sherwood Fireplace are prohibited. Any modifications may void claims, listings and approvals and could result in an
unsafe and potentially dangerous installation.
The installer indemnifies the manufacturer of all claims and under no circumstances will manufacturer be liable for consequential,
incidental, indirect, punitive or other damages of any kind or nature, whether foreseeable or not, based on any claim by any party as to
the modifications of the fireplaces.
MANTEL CLEARANCES
A decorative mantel may be installed above the firebox opening of the Sherwood Fireplace
provided the front edge of the mantle extends no more than 10" from the face of the fireplace
and is a minimum of 12" above the opening (Figure A).
VENTILATION
The Sherwood Fireplace is designed as an outdoor unit only. No additional ventilation or
circulation is required.
COMBUSTIBLE CLEARANCES
The distances to combustibles while burning solid wood shall be no less than 60" from the front
of firebox, 12" from the side walls and 4" from the back wall. When a vented or ventless gas log
set is used and the top of the chimney capped, the clearances shall be no less than 16" from
the front, 4" from the back and 1" from the top of the chimney.
DAMAGED PARTS
If unit is delivered with obvious damage due to freight, please notify driver or refuse delivery. If product is damaged on job site, you may
be able to repair unit using adhesive and/or mortar. If damage is severe, contact your dealer to arrange shipment of replacement parts.
MAINTENANCE
Please contact a professional chimney sweep at least once each year to inspect and make recommendations regarding the maintenance
of your outdoor fireplace. In the event you have added a decorative chimney termination or rain cap to your fireplace, please be prepared
to inform the chimney sweep as to the best method to perform proper inspection/maintenance.
Figure A
10"
12"
Firebox
Mantel
Fireplace
Profile

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DIMENSIONS
96"
52"
32"
47"
16"
16"
64"
93"
25.5"
38"
64"
21"
52"
14"
15"
27"27"
40"
40"
16"
12"
8"

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PARTS LIST
EXTERNAL COMPONENTS–
SHELL, BASE & CHIMNEY CAP
ITEM PART QTY.
JChimney Sleeve–Front 
KChimney Sleeve–Back 
MFireplace Side Extension–Right 
NFireplace Side Extension–Left 
OChimney Cap 
—Bolts (." × .") 
—Washers 
—Nuts 
—Cavity Plugs 
ITEM PART QTY.
ABase Support 
BBase Sleeve 
CHearth 
DLeft Side Unit 
ERight Side Unit 
FBack Panel 
GCross-Section Sleeve 
HSmoke Dome Sleeve–Front 
ISmoke Dome Sleeve–Back 
O
J
H
K
I
C
A
G
NM
D
F
E
B

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PARTS LIST Continued
ITEM PART QTY.
Firebox Base Plate 
Firebox Side Wall 
Firebox Back Wall 
Damper Beam 
Damper Support 
Smoke Dome 
Smoke Dome Sloping Sides 
ITEM PART QTY.
Smoke Dome Top Plate 
Chimney Casing Block 
 " Interior Chimney Liner 
 " Interior Chimney Liner 
—Isokern Mortar  Gallons
—Alsey Firebrick & Flue-Set Refractory Mortar  Sq. Ft.
—PL Adhesive 
INTERNAL COMPONENTS
BY ISOKERN
11
10
9
6
4
2
Assembled
Isokern Firebox
7
5
3
1
8

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ISOKERN ASSEMBLY GUIDELINES
Isokern Mortar (a thin-set type masonry adhesive) is used to glue all Isokern components together during field assembly of the unit.
Five gallons of the mortar is supplied dry. No other mortar is approved for use when assembling Isokern parts. Use of a mortar other
than Isokern MP50 (included) will void the warranty.
Isokern Mortar is mixed with clean water to a smooth, workable texture (without lumps or dry pockets) of a “toothpaste” consistency.
This mixture is suitable for application onto Isokern components by using a masonry grout bag supplied with the unit.
Attention should be paid that the mortar mixture is not too thin or runny, as this will not allow
the mortar to reach its maximum bonding strength.
Isokern Mortar is squeezed from a grout bag onto the contact surfaces of the Isokern
components as they are fitted together.
It is important that a ½" bead of mortar on all the components’ contact surfaces is applied at
about ½" in from all edges of the contact surface of the component (Figure B).
When setting the next component onto the mortared contact surface of the first component,
some mortar should squeeze out along the face of the entire joint as a sign of complete and
proper sealing of the joint. On broader contact surfaces it is advisable to apply several additional
½" beads of the Isokern Mortar to the area to assure proper sealing of the joint.
Properly mortared firebox and smoke dome assembly requires approximately 30 lbs. (dry
measure) of Isokern Mortar.
BROKEN COMPONENTS
Components broken into 2 or 3 pieces can be repaired by using Isokern Mortar along the break line as the component is set into place.
Components broken into multiple small pieces should be discarded and replaced.
LEVELING & ALIGNING COMPONENTS
Be sure to assemble all Isokern components level and flush with adjoining components.
Isokern Mortar is not intended to create a mortar joint of any thickness for leveling purposes.
Therefore, levelingand alignment adjustments are made by the use of small plastic shims
supplied with the unit (Figure C).
The shims can be inserted under a component to level and align it with adjacent Isokern
components. Be sure to re-grout any and all gaps resulting from shim insertion to maintain
components to full bearing.
NOTES
1. Do not mix Isokern Mortar with spirits or anti-freeze agents.
2. The maximum recommended mortar joint thickness at Isokern components is ¼".
Shim If Required to
Achieve Correct Height
Figure C
Figure B
Firebox Side Wall
Isokern Mortar
Grout Bag

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RECOMMENDED TOOLS
The following list of tools will make your installation a smooth process and give the best results:
Parts: Base Support (Part A)
Mortar Type: N/A
a) Place the Base Support in its final installation location.
The firebox will be centered on this unit.
b) Use shims to level the Base Support, if necessary.
BEGIN BASE
ASSEMBLY
1
Parts: Isokern Firebox Base Plate (Part 1)
Mortar Type: Isokern Mortar
a) Set the Isokern Firebox Base Plate in a full bed of Isokern
Mortar flat on the Base Support.
b) Level the Base Plate by floating it in a bed of Isokern Mortar to
full bearing against the underlying Base Support surface.
PLACE ISOKERN
FIREBOX BASE
2
Parts: Base Sleeve (Part B)
Mortar Type: N/A
a) Place the Base Sleeve over the Base Support and Plate
assembly with access openings facing front of Fireplace.
The Base Sleeve should fit snug and level around both the
Base Support and Plate pieces.
COMPLETE BASE
ASSEMBLY
3
FIREPLACE INSTALLATION STEPS
The following steps combine the Sherwood components with the Isokern components to create a durable, time-tested masonry outdoor
fireplace. Sherwood components are identified with letters, and Isokern components are identified with numbers.
7. Tape Measure
8. Caulking Gun
9. 2 Step Stools
4. Pencil
5. Level
6. Framing Square
1. Flathead Screwdriver
2. ¾" Wrench
3. ⁄" Drill Bit
10. Gloves (recommended
for handling GFRC)
11. Power Mixer (optional)

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FIREPLACE INSTALLATION STEPS Continued
Parts: Hearth (Part C) +
2 qty. Bolts, 4 qty. Washers & 2 qty. Nuts
Mortar Type: Construction Adhesive
a) Place the Hearth in front of the newly created base assembly.
The access openings should face and align to the access
openings on the front of the Base Sleeve.
b) Test bolts through bolt holes to ensure pass-through.
c) Apply construction adhesive to the backside of the Hearth
and slide into position making sure to line-up the bolt holes
of both units.
d) Using the access openings, connect the Hearth to the
Base Sleeve with 2 Bolts, using 2 Washers and a Nut for
each bolt. Tighten with a ¼ turn past snug.
ADD HEARTH
4
Parts: Left Side Unit (Part D) +
2 qty. Bolts, 4 qty. Washers & 2 qty. Nuts
Mortar Type: Construction Adhesive
a) Place Left Side Unit on base assembly.
b) Apply construction adhesive to the bottom of the Left Side Unit
and slide into position along the left edge of Base Sleeve, making
sure to line-up the bolt holes of both units.
c) Using the access openings, connect the Left Side Unit to the
Base Sleeve with 2 Bolts, using 2 Washers and a Nut for each bolt.
Do not tighten bolts all the way until step 7 is complete.
PLACE FIREPLACE
LEFT SIDE
5
Parts: Right Side Unit (Part E)+
2 qty. Bolts, 4 qty. Washers & 2 qty. Nuts
Mortar Type: Construction Adhesive
a) Place Right Side Unit on base assembly.
b) Apply construction adhesive to the bottom of the Right Side Unit
and slide into position along right edge of Base Sleeve, making
sure to line-up the bolt holes of both units.
c) Using the access openings, connect the Right Side Unit to the
Base Sleeve with 2 Bolts, using 2 Washers and a Nut for each bolt.
Do not tighten bolts all the way until step 7 is complete.
PLACE FIREPLACE
RIGHT SIDE
6

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FIREPLACE INSTALLATION STEPS Continued
Parts: Back Panel (Part F) +
4 qty. Bolts, 8 qty. Washers & 4 qty. Nuts
Mortar Type: Construction Adhesive
a) Place Back Panel between the Left and Right Side Units.
b) Apply construction adhesive to the bottom and exterior sides
of the Back Panel. Slide the Back Panel into position flush along
the rear edge of the Base Sleeve, making sure to line-up all
appropriate bolt holes.
c) Using the access openings, connect the Back Panel to the Left
and Right Side Units with the 4 Bolts, using 2 Washers and a
Nut for each bolt. Tighten all 4 bolts for the Fireplace Back Panel
and then continue to tighten all bolts for the Right and Left
Side Units. Tighten bolts a ¼ turn past snug.
PLACE FIREPLACE
BACK PANEL
7
Parts: 2 qty. Isokern Firebox Side Walls (Part 2) +
1 qty. Isokern Firebox Back Wall (Part 3)
Mortar Type: Isokern Mortar
a) Dry-set the first level of Firebox Side & Back Walls on top of
the Base Plate of the base assembly. Set the outside edges
flush with the Isokern base plate.
b) Trace the position of all 3 pieces in place on the Base Plate
with a pencil.
c) Remove the Firebox Side and Back Walls and apply a ½" layer
of Isokern Mortar to the traced outline on the Base Plate.
d) Set each piece back in place on the Base Plate, applying
Isokern Mortar to all contact surfaces (see Figure A) of vertical
joints where the Firebox Side Walls and Back Wall components
connect. Start by positioning the left piece first, then place
the right and connect the two with the back piece.
e) If necessary, adjust the top surface of the firebox assembly
for level by inserting a shim between the lowest wall
component and the top surface of the base plate.
f) Any gap created under the firebox wall components during
the shim-leveling process must be filled with Isokern Mortar
to full bearing against the Base Plate.
BEGIN ISOKERN
FIREBOX ASSEMBLY
8
Figure A
Firebox Side Wall
Isokern Mortar
Grout Bag
Firebox Side Wall
Isokern Mortar
Grout Bag

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FIREPLACE INSTALLATION STEPS Continued
Parts: 4 qty. Isokern Firebox Side Walls (Part 2) +
2 qty. Isokern Firebox Back Walls (Part 3)
Mortar Type: Isokern Mortar
a) Continue assembly of two additional levels using the Firebox
Side and Back Walls. Apply Isokern Mortar to the top of each
level's components, then set the next level above into place.
Be sure to mortar all vertical joints of the Firebox Side Walls to
Back Wall connections when setting each component in place.
b) When all of the Firebox Side and Back Wall components are set,
check the top surface of the firebox for level.
c) If necessary, adjust the top surface of the firebox assembly for
level by inserting a shim between the lowest wall component
and the top surface of the base plate.
d) Any gap created under the firebox wall components during the
shim-leveling process must be filled with Isokern Mortar to full
bearing against the Base Plate.
Parts: N/A
Mortar Type: Isokern Mortar
a) Make sure that the firebox wall assembly has been set level
and square.
b) Adjust as required while the mortar is still wet.
c) Make a final inspection of all contact joints in the firebox wall
assembly to be sure they are properly sealed.
d) Use a trowel and Isokern Mortar to fill in all gaps and smooth
over all seams between Isokern parts.
INSPECT ISOKERN
FIREBOX
10
COMPLETE ISOKERN
FIREBOX ASSEMBLY
9

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FIREPLACE INSTALLATION STEPS Continued
Parts: 1 qty. Isokern Damper Beam (Part 4) +
2 qty. Isokern Damper Supports (Part 5)
Mortar Type: Isokern Mortar
a) Dry-set a Damper Support in position on top of both the right
and left walls of the firebox wall assembly. Rest a Damper Beam
across the rear of the firebox wall assembly. All exterior edges
of the damper components must be flush to the exterior edges
of the firebox wall assembly.
b) Once all pieces are in position, remove the Damper Support on
the left and apply Isokern Mortar to the bottom and vertical
contact surfaces; set back into position. Repeat this process
for the Damper Support on the right and the rear Damper
Beam.
NOTE: Leave the front Damper Beam off until after Step 12 has
been completed.
Parts: Cross-Section Sleeve (Part G) +
4 qty. Bolts, 8 qty. Washers & 4 qty. Nuts
Mortar Type: Construction Adhesive
a) Lift the Cross-Section Sleeve up and over damper assembly and
set in place on top of the Fireplace Left (Part D) and Right (Part
E) Side Units. The Cross-Section Sleeve should sit flush with both
Left and Right Side Units and Back Panel.
b) Apply construction adhesive to the bottom of the Cross-Section
Sleeve and set in place making sure to line-up all appropriate
bolt holes.
c) Using access openings, connect the Cross-Section Sleeve to the
Left and Right Side Units with 4 bolts, using 2 washers and a nut
for each bolt. Tighten with a ¼ turn past snug.
PLACE CROSS-SECTION
SLEEVE
12
COMPLETE ISOKERN
DAMPER ASSEMBLY
Parts: 1 qty. Isokern Damper Beam (Part 4)
Mortar Type: Isokern Mortar
a) Once the Cross-Section Sleeve is bolted in place, use Isokern
Mortar on the last remaining Damper Beam and set it in the
front position of the damper assembly.
13
BEGIN ISOKERN
DAMPER ASSEMBLY
11

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FIREPLACE INSTALLATION STEPS Continued
Parts: 2 qty. Isokern Smoke Domes (Part 6) +
2 qty. Isokern Smoke Dome Sloping Sides (Part 7)
Mortar Type: Isokern Mortar
a) Dry set the Smoke Dome and Sloping Side pieces into position
before adhering with mortar. When applying mortar,
be sure to cover all contact surfaces thoroughly.
b) Set one Smoke Dome component across the rear Damper
Beam in a bed of mortar, flush with the rear edge of the
damper assembly.
c) Set the other Smoke Dome component in mortar across the
front Damper Beam, 2¼" back from the edge of the front lintel.
This placement should create a space of 17" between the front
and rear Smoke Dome components.
d) Position the Smoke Dome Sloping Sides at each end of the
Smoke Dome components. The Sloping Sides have a beveled
bottom to fit flat on the top of the damper assembly.
BEGIN ISOKERN SMOKE
DOME ASSEMBLY
14
Parts: Isokern Smoke Dome Top Plate (Part 8)
Mortar Type: Isokern Mortar
a) Place the Smoke Dome Top Plate on top of the smoke dome
walls. The side of the Top Plate showing a thickened center is
the bottom. The flue hole is centered from side to side but
is offset from front to back; the center of the flue hole should
rest 10¾" from the back of the firebox. Position the top plate
so that the flue hole sits closer to the backside of the unit.
b) Set the Smoke Dome Top Plate with Isokern Mortar; be sure to
mortar all contact surfaces thoroughly.
c) Use a trowel and Isokern Mortar to fill in all gaps and smooth
over all seams between Isokern parts.
COMPLETE ISOKERN
SMOKE DOME ASSEMBLY
15

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FIREPLACE INSTALLATION STEPS Continued
Parts: Smoke Dome Sleeve–Front (Part H) +
Smoke Dome Sleeve–Back (Part I) +
4 qty. Bolts, 8 qty. Washers & 4 qty. Nuts
Mortar Type: Construction Adhesive
a) First, position the Smoke Dome Sleeve–Back (Part I) piece over
smoke dome assembly on top of the Cross-Section Sleeve. Set
the piece by applying construction adhesive to the interior
connecting walls and bottom surfaces and push in place.
Tighten bottom bolts only.
b) Position the Smoke Dome Sleeve–Front (Part H) piece over
smoke dome assembly on top of the Cross-Section Sleeve.
Set the piece by applying construction adhesive to the interior
connecting walls and bottom surfaces and push in place.
c) Using the access openings, bolt the Smoke Dome Sleeve–Front
and Back together and to the Cross-Section Sleeve underneath
using 4 bolts, using 2 washers and a nut for each bolt. Tighten
with a ¼ turn past snug.
BUILD SMOKE DOME
SLEEVE
16
Parts: Isokern Chimney Casing Block (Part 9) +
Isokern 6" Interior Chimney Liner (Part 10) +
Isokern 12" Interior Chimney Liner (Part 11)
Mortar Type: Isokern Mortar
a) Set the Chimney Casing Block in a bed of Isokern Mortar on top
of the Smoke Dome Top Plate centered from side to side and
flush with the back of the smoke dome assembly. Make sure
that the interior of the Chimney Casing Block aligns with the
flue hole in the Smoke Dome Top Plate. The recessed grooves
in the Chimney Casing Block should face downwards with the
raised grooves facing upwards.
b) Next, set the 6" Interior Chimney Liner inside the outer casing
block. The 6" Interior Chimney Liner has a female and a flat end;
set with the flat end down into Isokern Mortar so that it is fully
sealed to the smoke dome assembly.
c) Apply Isokern Mortar to the top of the 6" Interior Chimney Liner
and set the 12" Interior Chimney Liner on it. The top of this liner
will sit 6" above the top of the Chimney Casing Block that was
previously set.
BUILD ISOKERN
CHIMNEY ASSEMBLY
17

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FIREPLACE INSTALLATION STEPS Continued
Parts: Chimney Sleeve–Front (Part J) +
Chimney Sleeve–Back (Part K) +
4 qty. Bolts, 8 qty. Washers & 4 qty. Nuts
Mortar Type: Construction Adhesive
a) Position the Chimney Sleeve–Front and Back pieces around the
firebox chimney assembly. The Chimney Sleeve–Back (Part K)
should sit flush with Smoke Dome Sleeve–Back (Part I). Set the
two halves by applying construction adhesive to the interior
connecting walls and bottom surfaces and push in place.
b) Using the access openings, bolt the Chimney Sleeve–Front and
Back together and to the Smoke Dome Sleeve underneath using
4 bolts, using 2 washers and a nut for each bolt. Tighten with a
¼ turn past snug.
BUILD CHIMNEY
SLEEVE
18
Parts: Side Extension–Right (Part M) +
Side Extension–Left (Part N) +
4 qty. Bolts, 8 qty. Washers & 4 qty. Nuts
Mortar Type: Construction Adhesive
a) Set a Fireplace Side Extension to both sides of the main fireplace
assembly. Level and shim if necessary. Apply construction adhesive
to the interior facing side walls and push in place.
b) Using the access openings, bolt each Side Extension to the
connecting Fireplace Right or Left Side Unit with 4 bolts for each
extension, using 2 washers and a nut for each bolt. Tighten with
a ¼ turn past snug.
ADD FIREPLACE SIDE
EXTENSIONS
19

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FIREPLACE INSTALLATION STEPS Continued
Parts: 36 qty. Cavity Plugs
Mortar Type: Construction Adhesive
a) Upon completion of the fireplace assembly, use the
beveled Cavity Plugs to cover all access hole openings.
Apply construction adhesive to the beveled edges of each
cap before pushing in place.
ADD CAVITY PLUGS
20
Parts: Chimney Cap
Mortar Type: N/A
a) Set the stainless steel Chimney Cap on top of Chimney Sleeve and
position over the center of the Isokern Chimney Liner.
b) Once the Chimney Cap is in position, use a ⁄" drill bit to create
pilot holes for the Chimney Cap.
c) Use the screws provided to anchor the Chimney Cap onto the
Chimney Sleeve.
d) Wall cap accessories may be installed over top of the horizontal
Chimney Cap flange and grouted in place.
ADD CHIMNEY CAP
21

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FIREBRICK INSTALLATION
The manufacturer requires that the firebox be lined with a minimum 1–1¼" thick firebrick (included). Thicker firebrick may be used as an
option. The pattern for the firebrick lining is also an owner option.
Use the supplied Flue-Set Refractory Mortar to adhere the firebrick to the inside of the firebox and create the finished face joints of the
brickwork. Mixing instructions may vary because of different climates and conditions. The use of good masonry practices for your area
should also be considered. All required through-wall accesses (gas & electrical line feeds and combustion air supply access holes) should
be drilled BEFORE the required firebrick lining is installed.
Mix 50lb bag with 3.75 quarts of clean water or .75 quarts per 10 lbs.
of dry product until completely blended. Only mix what can be
utilized within 15 minutes; do not retemper (the addition of water
after the chemical reaction has begun). The use of warm water
will accelerate setup.
Complete set time is between 48 and 72 hours. For best results,
please allow 7 days before heat is applied.
CAUTION: Do not add additives such as fireclay, sand, cement, or
other accelerators.
APPLYING FIREBRICK
1. Wet mop the inside of the firebox with a damp sponge to
remove dust and loose particles from the interior before
installing firebrick.
2. Determine your pattern and face joint dimensions. Face joint
dimensions of " to ¼" in the brickwork is recommended and
has the best appearance. Other face joint dimensions are
acceptable however smaller joints may not leave room for heat
expansion of firebrick.
HINT:Dip each firebrick into water before applying.
3. Start the firebrick at the front edge of the floor of the Isokern
firebox, proceeding inward toward the back. Give the floor brick
a gap of approximately ½" from the back and side walls (Figure A).
This air space allows heat expansion of the fire brick and is to
be left empty of mortar.
4. Next, adhere firebrick to the back wall of the unit. The firebrick
on the back wall will cover up the ½" expansion gap left on the
brick floor along the back wall of the firebox. Give the firebrick
on the back wall a gap of approximately ½" from the side walls
(Figure B).
5. Set the side walls firebrick by starting at the front edge and
work towards the back. The side wall firebrick, when completed,
covers up the ½" expansion gaps on both the floor and back
side walls where the firebrick was held off (Figure C).
NOTE:It is typical for heat stress cracks to appear in the firebrick
in fireplaces.
½" Expansion Gaps
½" Expansion Gap
Figure A (Overhead View):
Set Firebrick on Floor FIRST
Firebrick Back Wall
½" Expansion Gaps
Firebrick Floor
Figure B (Front View):
Set Firebrick on Back Wall SECOND
Firebox Wall
Firebrick Side Wall
Firebrick Floor
Firebrick
Back Wall
Figure C (Overhead View–Left Corner):
Set Firebrick on Side Walls LAST

20800.925.1491
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FINISHING FIREPLACE EXTERIOR
Customize your Wood-Burning Fireplace by dressing it with an application of Eldorado Stone, Eldorado Brick, natural veneer or stucco.
Experience the limitless design opportunities and the convenience only Eldorado makes possible with over 150 highly authentic
architectural stone and brick veneers. Learn how to create the ultimate masonry appearance and get inspiration to create your own
luxurious outdoor sanctuary at eldoradostone.com.
OPERATING INSTRUCTIONS
This part of the manual covers methods to maximize the performance of your fireplace. If you are having trouble with your Sherwood
fireplace, please contact your installer or call 1-800-925-1491 for assistance.
Use a log grate to place under the fuel when using solid wood fuels. We recommend using hardwood dried 6 to 12 months for best results.
The ideal moisture content for wood burning is 15-19%. This allows for the best heat output and cleaniest burn. Moisture meters are
available at many hardware stores. Place wood in firebox with ample air space between logs.
BUILDING A FIRE
Start by placing some kindling in the center of your fireplace grate [see callout (A) in illustration below]. Then lay one split section of log
across each side of the kindling (B), placing the pieces of wood so that the ends nearer to the back of the fireplace (C) are closer together
than the ends at the front. The wood should not extend more than an inch beyond the front of the grate or it may cause smoke to move
out the front of the unit. Now lay an additional one or two pieces of wood across the two side logs (D). Push these top logs all the way to
the back (E) so the rear log lies against the back wall of the fireplace.
DISPOSAL OF ASHES
• Keep the base of the fireplace clean of excess ash accumulation. This will prevent grate “burn-out.”
• Keep the area directly underneath the burning logs free of ash. Make sure ash does not build up to a point where it hinders the air flow.
• Before removal, make sure the fire is completely out and the ashes cool.
• Use a small fireplace shovel to remove accumulated ash.
• Place the ashes in a metal container with tight-fitting lid and store the closed container on a non-combustible floor surface. Keep it well
away from all combustible materials until final disposal. Dispose of the ash by burying it in soil or other local dispersal. Make sure ash is
retained in the closed container until cinders have thoroughly cooled.
• Replace any grate that has deteriorated, distorted or sagged from extended use.
(
D)Additional Wood
(B)Split Logs
(E)Push wood to touch
rear interior wall
(C)Move ends in back
closer together
(A)Kindling
(C)