Vermont Casting EWF30 User Manual 2

EWF30
Fireplace

Homeowner’s
Installation and
Operating Manual

SAFETY NOTICE: IF THIS APPLIANCE IS NOT PROPERLY INSTALLED, OPERATED AND MAIN­TAINED, A HOUSE FIRE MAY RESULT.
TO REDUCE THE RISK OF FIRE, FOLLOW THE INSTALLATION INSTRUCTIONS. FAILURE TO
FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTY DAMAGE, BODILY INJURY OR EVEN
DEATH. CONTACT LOCAL BUILDING OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION
INSPECTION REQUIREMENTS IN YOUR AREA.

CFM Specialty Home Products

410 Admiral Blvd. • Mississauga, Ontario, Canada L5T 2N6 • 905-670-7777

www.majesticproducts.com • www.vermontcastings.com

Do Not Discard This Manual: Retain for Future Use

20008662 8/05 Rev. 1

Vermont Castings EWF30

Introduction

Thank you for purchasing a Vermont Castings, EWF30 fireplace. An efficient fireplace carefully engineered to bring
you the latest in wood combustion principles and modern foundry technology.

You can count on years of comfortable heating and pleasurable fire viewing if you treat it properly and operate the
EWF30 according to the directions in this owner’s guide.

The EWF30 is listed by Underwriter’s Laboratories, and is in compliance with the standards set forth by the Federal
Environmental Protection Agency, 40 CFR Part 60.532(b), as stated on the permanent label attached to each appli­ance.

This manual describes the installation and operation of the EWF30 wood heater. This heater meets the US Environ
mental Protection Agency’s emission limits for wood heaters sold after July 1, 1990. Under specific test conditions this
heater has been shown to deliver heat at a rate ranging from 11,000 to 68,600 Btu’s/hr.

For more complete details on the EWF30 performance and specifications, please refer to Page 4.

The EWF30 is designed, tested and listed for burning wood. Do not burn other fuels.

We recommend that you hire a professional installer certified by Wood Energy Technical Training (WETT) to install
your EWF30, or to advise you on the installation should you attempt to install it yourself.

Please read the appropriate sections of this manual before you install and use your EWF30. For information on opera­tion and maintenance of the EWF30, refer to Pages 18 and 22.

The EWF fireplace can use 100% outside air with the AKMST Outside Air Kit installed (supplied with fireplace).

Failure to follow these instructions may result in property damage, bodily injury or even death.

Save These Instructions for Future Reference

-

Table of Contents

Introduction ................................................................ 2

Safety Information ..................................................... 3

Specifications ............................................................

Planning Information ................................................. 7

Installation ................................................................. 8

Operation ................................................................. 18

Maintenance ............................................................ 22

Replacement Parts .................................................. 26

Optional Accessories ...............................................

Warranty ..................................................................

28
31

Proposition 65 Warning: Fuels used in gas, wood­burning or oil fired appliances, and the products of
combustion of such fuels, contain chemicals known
to the State of California to cause cancer, birth de-

4

fects and other reproductive harm.
California Health & Safety Code Sec. 25249.6

2

20008662

Vermont Castings EWF30

Safety Information

Please Read This Manual Before Installing and Using Fireplace

IMPORTANT:

Read all instructions and warnings carefully before starting installation. Failure to

follow these instructions may result in a possible fire hazard and will void the warranty.

Description

The EWF30 fireplace is a clean burning, non-catalytic,
EPA certified solid fuel, wood burning, heat circulating
fireplace.

Precautions

CFM Specialty Home Products fireplaces and com­ponent parts have been highly tested and will operate
safely when installed in accordance with instructions
provided in this manual. Carefully read and understand
all instructions before beginning installation.

If you notice any damage to fireplace or component
parts, immediately report damage to your CFM Spe­cialty Home Products dealer.

Only use CFM Specialty Home Products components
or the warranty will be voided and a fire hazard may be
created.

CFM Specialty Home Products warranty will be voided
by and CFM Specialty Home Products disclaims any
responsibility for the following actions:

• Installation of any damaged fireplace or chim-

ney component;

• Modification of fireplace, chimney assembly

or any component parts thereof; (except for
chase flashings as detailed in CFM Corporation
Chimney Top installation instructions).

• Installation other than as instructed by CFM

Specialty Home Products; or

• Installation and/or use of any component

part not manufactured or approved by CFM
Specialty Home Products in combination or
assembly with a CFM Specialty Home Prod­ucts fireplace system, notwithstanding any
independent testing laboratory or other third
party approval of such component parts or
accessory.

Any such action may possibly cause a fire hazard.

Consult local building codes to ensure that you are in
compliance before installing the fireplace.

This fireplace and chimney system must be vented to
the out-of-doors.

Do not obstruct or modify air inlets/outlets in any
manner.

Do not install combustible materials on any of the
black fireplace surround.

Burn only solid wood fuel.

The EWF30 is intended for operation with the doors
closed or fully open only with the optional spark
screen in place. The doors must be in the fully
closed position for clean burning operation.

Do not install a solid fuel burning insert or other
products not specified for use with this fireplace.

This fireplace is not approved for installation in
mobile homes.

NOTE: Hairline cracks in hearth brick and ash lips
are not a safety issue and do not need to be re­placed.

Drafts

The fireplace should not be located in areas that create
drafts (ie: frequently opened doors and central heating
air inlets/outlets) that hamper the normal flow of air into
the fire.

EWF30

Listed

UL 127 / ULC-S610

Standard for Factory Built Fireplaces

Unit: WFE05H0

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3

Vermont Castings EWF30

12”

(305 mm)

26”

(660 mm)

27”

(686 mm)

Rough Opening Width 39”

(1000 mm)

37” (949 mm)

11” Dia.
(279 mm)

5/8” (16 mm)
Recessed
Nailing Flange

32” (826 mm)

37” (949 mm)

47"

(1203 mm)

6”

(159 mm)

10”

(254 mm)

Outside Air

43”

(1102 mm)

64" (1635 mm)

64" (1635 mm)

1" (25 mm)

1“

91” (2311 mm)

46

”

(1172 mm)

5/8" (16 mm)

Electrical
Access

4”

(124 mm)

12

”

(318 mm)

25“ (635 mm)

23” (597 mm)

12"

(318 mm)

12”

(305 mm)

EWF30

Specifications

Range of heat output* ............... 11,100 - 40,500 Btu/hr

Maximum heat output** ....... in excess of 55,000 Btu/hr

EPA emissions rating (g/h) ......................................3.5*

Area heated*** .............. Up to 2,400 sq. ft. (223 sq. m)

Size of wood splits ....................18” - 23” (457-584 mm)

Fuel Capacity .......................................... 40lbs. (18 kg)

Loading ..................................................................Front

Flue size .................................................... 8” (203 mm)

Fireplace weight ............................................... 350 lbs.

Primary Air Control ............................................ Manual

Glass panel ......................... High-temperature ceramic

Flue exit position ..................................................... Top

Blower rating ...............................160cfm. (115V, 60Hz)

EWF30 Woodburning Fireplace

*Under specific test conditions used during EPA emis

-

sions standard testing.
**This value can vary depending on how the unit is

operated, and the type and moisture content of the fuel
used. Figure shown is based on maximum fuel con­sumption obtained under laboratory conditions and on
average efficiencies.

***These values are based on operation in building­code conforming homes under typical winter climate
conditions. If your home is of nonstandard construction
(e.g. unusually well insulated, not insulated, built under
ground, etc.) or if you live in a more severe or more
temperate climate, these figures may not apply. Since
so many variables affect performance, consult your Ver­mont Castings’ Authorized Dealer to determine realistic
expectations for your home.

Fig. 1 EWF30 specifications and framing.

An optional Gravity Vent Kit is available for installation on top of the fireplace as a means to provide additional heat to
the room the fireplace is in or an adjacent room. Installation instructions are provided with the Gravity Vent Kit if using
this option.

4

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Chase Installation

Insulation methods shown are
optional for cold climate, not a
requirement for unit operation.

Batt Insulation
(cut out around firestop)

Firestop

Ceiling Level

Vermont Castings EWF30

Termination Cap

Storm Collar

Pan Flashing

Draftstop

Batt Insulation
MUST be used in
the Chase.

Electrical Access

Fig. 2 Fireplace and chase parts identification.

Standoff

Brick Ledge

Andiron

Metal Safety Strips
(1,2 or 3 pieces)

FP1561

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5

Vermont Castings EWF30

D

Rise

B

G

H

B

Offset

C

E

6 FT.

G

H

A

Hearth
Floor

Chimney
Section

CHIMNEY FLUE EXIT

Elbow

TCS8A
Support

Example 1 Example 2 Example 3

Offset

Rise

Chimney Requirements - Offset Installations

Notes: G + H cannot exceed 20 feet.

Air Space Clearances: “SK” Series (2-wall) = 1¹⁄₂” Min. to Combustibles
“S” Series (3-wall) = 2” Min. to Combustibles

Illustration Key

The following safety rules apply to
offset installations (letters correspond
with illustration above):

A. Height of the chimney is measured
from the hearth to the chimney exit.

Maximum: 50’
Minimum:
Without Elbows 17’0”
With 2 Elbows* 19’0”
With 4 Elbows* 21’0”

B. Do not use more than 4 elbows per
chimney.

Attach the straps of the return (top)
elbow to a structural framing member.

The offset (first) elbow of any pair does
not have straps.

Fig. 3 Chimney system requirements.

EWF30

30°

Return

Elbow

30°
Offset
Elbow

30°

Return

Elbow

30°
Offset
Elbow

C. The chimney cannot be more than 30˚
(45˚ in Canada) from the vertical plane in
any installation*.

D. The maximum length of the angled run
of the total chimney system is 20 feet. (G
plus H cannot exceed 20 feet.)

E. A chimney support (Model SKCS8)
is required every 6 feet of angled run of
chimney. Chimney supports are required
for every 30 feet and 60 feet (SK8 pipe)
or 20 feet and 40 feet (3-wall pipe) of ver­tical chimney height above the hearth.

Determine the offset distance of your
chimney arrangement from the centerline
of the fireplace to the centerline of the
chimney where it is to pass through the
first ceiling.

NOTE: This offset distance may not be
your full offset distance. See Examples 2
and 3.

FP282

30˚ Elbow Offsets

1’

3’ 4’

1¹⁄₂'

0 0 0 0 0 3” 11”

1 0 0 0 0 8
0 1 0 0 0 11
2 0 0 0 0 13¹⁄₂" 29¹⁄₄"
1 1 0 0 0 16
0 0 1 0 0 20
2 1 0 0 0 21³⁄₄" 43¹⁄₂"
0 0 0 1 0 26
0 1 1 0 0 28
1 0 0 1 0 31¹⁄₂" 60¹⁄₄”
0 1 0 1 0 34
0 0 2 0 0 37
1 1 0 1 1 41¹⁄₂" 77³⁄₄"
0 0 1 1 1 45" 83³⁄₄"
0 1 2 0 1 47¹⁄₄" 87¹⁄₂"

FP269

0 0 0 2 1 51" 94"
0 1 1 1 1 53¹⁄₄" 98"
0 0 3 0 1 56¹⁄₄" 103¹⁄₄"
0 1 0 2 1 59
0 0 2 1 1 62
0 1 3 0 1 64¹⁄₂" 117¹⁄₂"
0 0 1 2 1 68
0 1 2 1 1 70
0 0 0 3 1 74¹⁄₄" 134¹⁄₂"
0 1 1 2 2 78" 140
0 0 3 1 2 81" 146"
0 1 0 3 2 84" 151
0 0 2 2 2 87" 156
0 1 3 1 2 89¹⁄₄" 160¹⁄₄"
0 0 1 3 2 93" 166
0 1 2 2 2 95
0 0 0 4 2 99¹⁄₄" 177³⁄₄"
0 1 1 3 2 101
0 0 3 2 2 104
0 1 0 4 2 107¹⁄₄" 191¹⁄₂"
0 0 2 3 2 110
0 1 3 2 3 114" 203
0 0 1 4 3 117³⁄₄" 209³⁄₄"
0 1 2 3 3 120" 213¹⁄₂"
0 0 0 5 3 123³⁄₄" 220"

Offset

Chimney

Support

Rise

¹⁄₄" 20"
¹⁄₄" 25¹⁄₄"

¹⁄₂" 34¹⁄₄"
¹⁄₄" 40³⁄₄"

¹⁄₄" 51¹⁄₄"
¹⁄₂" 55¹⁄₄"

¹⁄₂" 65¹⁄₂"
¹⁄₂" 70³⁄₄"

¹⁄₄" 108¹⁄₂"
¹⁄₄" 113¹⁄₂"

¹⁄₄" 124"
¹⁄₂" 128"

³⁄₄"

¹⁄₄"
¹⁄₂"

³⁄₄"

¹⁄₄" 170³⁄₄"

¹⁄₄" 181³⁄₄"
¹⁄₄" 186¹⁄₄"

¹⁄₄" 196³⁄₄"

¹⁄₄"

6

20008662

Planning Information

2' Min.

2' Min.

3'

Min.

0 To 10'

3'

Min.

0 To 10'

Reference
Point

L

1

L

1

L

T

TOTAL

LENGTH

(L

T

)

INSTALLED

LENGTH

(L

1

)

"
"
"
"

"
"
"
"

TRIPLE

WALL

81
818
83
84

Vermont Castings EWF30

Planning an installation is very important to ensure
safety and to save time and money. An installer must
predetermine where a fireplace will be set and how the
chimney system will be run.

Mounting the Fireplace

The fireplace is shipped with lifting handles attached to
each side with lifting straps. NOTE: The lifting straps
are intended for ligting unit off of the skid and final po­sitioning. Unit should remain on skid until final position­ing. After fireplace is in position, the lifting handle and
straps may be removed or left in place.

A fireplace may only be mounted on the following sur­faces:

1. A flat combustible surface.

2. A raised wooden platform.

3. A concrete block or other solid object placed beneath
each of the four (4) corners of the fireplace.

The fireplace must be spaced 1” from a combustible
back wall and 1” from a combustible side wall or sup-

port. (Page 13, Fig. 17)

Planning the Chimney Run

TOTAL INSTALLED
TRIPLE LENGTH LENGTH
WALL (L

SK81 11¹⁄₂” 10¹⁄₂”

SK818 17

SK83 35

SK84 47

) (L1)

T

¹⁄₂” 16¹⁄₂”

¹⁄₂” 34¹⁄₂”

¹⁄₂” 46¹⁄₂”

FP288a

5. No more than 2 offsets (4 total 30° elbows in U.S./or
2 total 45° elbows in Canada) per fireplace may be
used.

6. A guy wire stabilizer is required for chimneys extend­ing more than 6’ (1.8m) above a roof line.

The Ten Foot Rule

Major U.S. building codes specify a minimum chimney
height above the roof top. The “Ten Foot Rule” is a fire
safety rule and not a draft rule. To ensure proper draft,
it is recommended that you always meet or exceed the
“Ten Foot Rule,” especially when installing a termination
on a high pitch roof. (Fig. 5)

The key points of the “Ten Foot Rule” are:

1. If the horizontal distance from the chimney to the

peak of the roof is 10’ (3m) or less, the top of the
chimney must be at least 2’ (610mm) above the peak
of the roof, but never less than 3’ (914mm) in height
above the highest point where it passes through the
roof.

2. If a horizontal distance from the chimney to the peak

of the roof is more than 10’ (3m), a chimney height
reference point is established that is on the surface
of the roof a distance of 10’ (3m) from the chimney in
a horizontal plane. The top of the chimney must be
at least 2’ (610mm) above the reference point, but
never less than 3’ (914mm) in height above the high­est point where it passes through the roof.

Fig. 4 Installed lengths of chimney sections.

Determine how the chimney will be run, length of run
and chimney components required to complete the
job. (Fig. 4) Never install a chimney below minimum
heights.

In planning a chimney system, it is important to know:

1. The height of a chimney is measured from the hearth
to the exit point on the termination.

2. A chimney cannot be offset more than 30° from a
vertical plane.

3. A chimney may run straight up or it may be neces­sary to offset it to avoid obstructions.

4. The maximum length of an angled run (total chimney
system) is 20 feet.

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AC246

Fig. 5 Ten Foot Rule illustration.

7

Vermont Castings EWF30

Chimney Supports

The chimney system is supported by the fireplace for
vertical chimney heights less than 30’ (9m) above the
hearth. Chimney supports are required if the vertical
height exceeds 30’ (9m). Locate chimney supports
at ceiling holes or other structural framing at 30’ (9m)
heights. Spacing between chimney supports must not
exceed 30’ (9m). Use Chimney Support Model SKCS8.

(NOTE: The SKCS8 cannot be mounted directly to
the fireplace.) Support provided by elbow straps fulfills

the support requirement only if they are spaced as pre­viously described. (A chimney support is 2¹⁄₂" (64mm)
long when installed.)

Angled chimney runs require a support every 6’ (1.8m)
in addition to the elbow straps. Chimney supports are

used for this function. (Fig. 6)

Chimney Sup­port Strap

TCS8A

FP284a

Fig. 6 Chimney support installation.

Installation

Insulating Fireplace Enclosure

for Cold Climates

If you live in a cold climate, it is not required but
highly recommended that you insulate fireplace
enclosure to eliminate cold air penetration as much as
possible.

Insulate base of fireplace with a noncombustible
insulation rated for a minimum of 300° F. Insulating
is very important for outside wall installations over
a concrete slab. If fireplace is installed on a platform,
insulation should be placed on top of the platform
before fireplace is set. (Fig. 7)

When a fireplace is installed in a chase or on an
outside wall, enclosure should be treated like any
outside wall in a home. Insulation should be installed
on the inside wall as well as the outside wall(s). In a
chase, it is also a good idea to install a firestop at the
first ceiling level above the fireplace and enclose the
chase with sheeting material. Insulation may then be
installed above sheeting material to assure the space
around the fireplace is totally protected. (Fig. 2)

When installing the chimney, DO NOT caulk between
outer pipe and firestop. It is vital that some air be al­lowed to flow through this very thin gap.

CAUTION: When installing a fireplace in an insu
lated enclosure, be sure all required air spaces
are maintained. (Page 13, Fig. 17)

-

Chase Installation

A chase is a vertical box-like structure which encloses
the fireplace and/or chimney. Chases are typically built
on the outside of the house with fireplace opening cut
into the outer wall of a room. (Page 5, Fig. 2)

If you need help in determining fireplace location or how
the chimney system should be run, contact your Ver­mont Castings dealer for assistance.

8

Hard
Flat
Surface

Insulation

Platform

FP1562

Fig. 7 Insulating between platform and fireplace.

20008662

Vermont Castings EWF30

9"

(241mm)

Framing

Framing can be constructed before or after the fireplace
is set in place, however, most installers build the frame
before setting the fireplace.

Frame fireplace with 2 x 4 lumber or heavier materi­als. Refer to framing dimensions in Figure 1 for basic
fireplace specifications.

NOTE: Framing should be positioned to accommodate
wall covering and fireplace facing material.

EB1 (Receptacle) Hookup

Option for Circulating Models Only

Wiring should be installed by a certified electrician.

Turn off circuit breaker before wiring models.

Once fireplace is secured, complete wiring the fan kit.
Remove knockout in the center of the back of the EB1
and install listed cable clamps. Feed electrical wire
through listed cable clamp leaving approximately six (6)
inches of wire exposed through the EB1. Secure listed
cable clamp to the wire.

Attach white wire from power source to one (1) wire
of receptacle and secure with nut. Attach black wire
from power source to the other wire of receptacle and
secure with nut. Be sure nuts are secured tightly.

Secure EB1 assembly to inside of electrical box cover­plate using two screws. Attach cover to face of the EB1
while being careful to position excess wire completely
within the EB1, then attach coverplate to fireplace.

Chimney Centerline

Actual Centerpoint

Plumb Line

Plumb Bob

Imaginary
Centerpoint

Chimney Set-Up

Since you have already planned the chimney run, you
should know exactly how the installation is to be ac­complished - how much pipe is required, the number of
elbows, if any, and type of termination to be used.

CAUTION: Report to your dealer any parts damaged
in shipment, specifically check the end connection of
chimney sections and elbows.

NOTE: Fireplaces may use CFM Corporation Model
SK8, or Model S (three wall) chimney systems. The
BR/BC Series Fireplace will accept the SK8 chimney
system as is; but a TWABR adapter collar is required
when using the Model S (triple wall) chimney system.
The installation procedure described in this manual
applies only to the SK8 system. Either chimney system

may be used, but may not be mixed.

Straight-Up Chimney Installation

To mark the centerline of the flue, put the fireplace
in final position and measure out from the wall: 9¹⁄₂"
(241mm). Mark a spot on the ceiling directly above the
fireplace. Draw a line parallel to the back wall through
this mark. (Fig. 8)

FP1563

Fig. 8 Locate centerline of chimney with plumb line.

Using a plumb bob positioned directly over center point
of fireplace flue collar, mark the ceiling to establish the
chimney center point. (Fig. 8)

Offset Installation

In order to clear an obstruction, it may be necessary to
offset chimney from vertical. This is accomplished by
using elbows. Use the 30˚ Offset Elbow table on Page 6
to determine proper offset and parts required.

Each offset requires two (2) elbows. The second elbow
is equipped with support straps. It is very important to
install the second elbow in each offset as close to the
ceiling or support as possible so that the elbow straps
can be secured to framing members to help support the

weight of the chimney.

Determine offset distance of your chimney arrangement
from centerline of fireplace to centerline of chimney
where it is to pass through ceiling.

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9

Vermont Castings EWF30

AB

AB

A "SK" Series framing = 14" X 14" (368 x 368 mm)
B "S" Series framing = 17" X 17" (445 x 445 mm)

Locate center point of the chimney on ceiling as though
a straight up chimney arrangement is to be used. Mea­sure your offset dimension from straight up chimney

center point on ceiling.

Ceiling Chimney Hole/
Possible Obstructions

The size of the hole in ceiling will vary with the angle at
which the chimney passes through ceiling.

Drive a nail up through ceiling at marked chimney
center point. Go to floor above and see where hole
will be cut. Check to see where existing ceiling joists
and other possible obstructions are located...i.e. wiring,
plumbing etc... If necessary, re-position chimney and/or

fireplace to avoid obstructions.

Cutting the Hole

Cover fireplace collar opening and cut proper sized
chimney hole in chimney.

Framing the Ceiling Hole

Frame the ceiling chimney hole as shown in Figure

10. It is good practice to use framing lumber that is the
same size as the ceiling joists; this is a requirement at
attic level.

The following table gives firestop spacer model num­bers:

Chimney Hole Size

Angle of Chimney at Ceiling

Size of Chimney Vertical 30°

8" Flue SKFS2A SKFS6A
"SK" Series 14
(368mm x 368mm) (368mm x 648mm)
8" Flue FS2A FS6A
"S" Series 3-Wall 17¹⁄₂" x 17¹⁄₂" 17⁷⁄₈" x 29⁵⁄₈"
(445mm x 445mm) (454mm x 753mm)

Fig. 9 Ceiling chimney hole sizes necessary for installing
firestop spacer.

¹⁄₂" x 14¹⁄₂" 14¹⁄₂" x 25¹⁄₂"

The inside dimension of the frame must be the same
as the hole size selected from Figure 9 in order to pro­vide required the 1¹⁄₂” (38 mm) air space between the
outside diameter of the chimney and the edges of the

framed ceiling hole.

Positioning, Safety Strips,

Securing the Fireplace

Slide fireplace into position.

Safety strips are used to ensure that any combustible
materials in front of the fireplace are protected even
though a noncombustible hearth extension is required.

When the finished extended hearth is added, the top
of the finished hearth must be flush with the bottom of
the fireplace. “Z” shaped metal safety strips have been

10

Existing
Ceiling
Joists

Chimney
Hole

New Framing
Members

Ceiling

FP551b

Fig. 10 Typical frame for ceiling chimney hole.

“Z” Metal Safety
Strips (1 or 2 pcs.)

“Z” Safety Strip

1¹⁄₂”

(38mm)

Fig. 11 Safety strip installation.

1/2” Min.
Overlap

Fire­place

Plat­form

Hearth Ext.

supplied with the fireplace and are required for instal

Decorative
Hearth
Face

FP1564

­lation. The safety strips provided have a 1” offset. For
applications with a greater offset, “Z” shaped strips will
have to be fabricated of metal. Overlap safety strips at
least 1/2” to provide a positive joint. The safety strips
must also extend at least 1¹⁄₂” (38mm) beyond the sides
of the fireplace. (Fig. 11)

NOTE: Safety strips are not required over noncombus­tible floors where all supports at the base of the fire­place are noncombustible.

Four (4) nailing flanges are supplied with the fireplace
(found on the fireplace hearth). To level the box and
secure it firmly in place, remove the nailing flanges from
the hearth and install at the sides of the fireplace as

shown in Figure 12.

20008662