Desa F48H Quick start guide

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IF FIREPLACE IS TO BE INSTALLED DIRECTLY ON
ANY COMBUSTIBLE MATERIAL, A HEARTH SPACER
IS REQUIRED.
SAVE THIS BOOK
This book is valuable. In addition to instructing you
on how to install and maintain your appliance, it also
contains information that will enable you to obtain re-
placement parts or accessory items when needed. Keep
it with your other important papers.
This replace is approved for use as a wood burning
replace or for use with a vented gas log approved to
ANS Z21.60, Z21.84 or RGA 2-72 standards or for use
with a vent-free gas log heater approved to ANS Z21.11.2
standard.
This wood burning replace complies with UL127-
CAN/ULS-S610-M87 standard as a FACTORY BUILT
APPLIANCE.
FOR CANADA: The authority having jurisdiction (such
as the municipal building department, re department,
etc.) should be contacted before installation to deter-
mine the need to obtain a permit.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
RESIDENTIAL WOOD BURNING
FIREPLACE
OWNER’S OPERATION AND
INSTALLATION MANUAL
F48H AND VF48H
PLANTATION
48" WOOD BURNING
FIREPLACE
WITH HERRINGBONE
MASONRY BRICK

www.desatech.com 118116-01D2
WARNING: Improper installation, adjustment, altera-
tion, service or maintenance can cause injury, property
damage or loss of life. Refer to this manual for assis-
tance or additional information. Consult a qualied
installer or local distributor.
SAFETY
This replace is not intended to
be used as a substitute for a fur-
nace to heat an entire home. Use
for supplemental heat only.
FOR YOUR SAFETY
• Do not store or use gasoline
or any other ammable vapors
or liquids in the vicinity of this
or any other appliance.
• Due to high temperatures, the
appliance should be located
out of trafc and away from
furniture and draperies.
• Do not place clothing or other
ammable materials on or near
the appliance.
• Never leave children unat-
tended when a re is burning
in the replace.
WARNING: Use solid wood
or processed solid fuel re logs
only. When processed wood
fuel re logs are used, do not
poke or stir the logs while they
are burning. Use only re logs
that have been evaluated for
the application in replace and
refer to re log warnings and
caution markings on packaging
prior to use.
IMPORTANT: Check local codes
before installing this replace.
Before beginning the installation of the
fireplace, read these instructions through
completely.
• This DESA Heating, LLC replace and its
components are safe when installed accord-
ing to this installation manual. Unless you use
DESAHeating, LLC components, which have
beendesignedandtestedforthereplace
system,youmaycausearehazard.
• The DESA Heating, LLC warranty will be
voided by and DESAHeating, LLC disclaims
any responsibility for the following actions.
a. Modification of the fireplace, compo-
nents, doors, air inlet system and damper
control.
b. Use of any component part not manu-
factured or approved by DESA Heat-
ing, LLC in combination with a DESA
Heating, LLC fireplace system.
Proper installation is the most important step
in ensuring safe and continuous operation
of the replace. Consult the local building
codes as to the particular requirements
concerned with the installation of all factory
builtreplaces.
WARNING: Do not install a
replace insert in this box unless
the manufacturer's instructions
with the insert specically state
this replace has been tested for
use with this insert.
TABLE OF CONTENTS
Safety .................................................................. 2
Specications ...................................................... 3
Fireplace Installation............................................ 4
Venting Installation .............................................. 5
Optional Gas Line Installation............................ 10
Brick Installation .................................................11
Glass Door Installation ...................................... 15
Operation and Maintenance Guidelines ............ 16
Replacement and Accessory Parts.................... 18
Technical Service............................................... 19

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118116-01D 3
SPECIFICATIONS
MODELS F48H AND VF48H
SQUARE
CHASE-TOP
TERMINATION
ROUND TOP
TERMINATION
33.5"
48"
60.625"
42.375"
30.31"
PLANTATION FIREPLACE
WITH HEARTH SPACER
(REQUIRED FOR
COMBUSTIBLE FLOORS)
24" 14.375"
30"
0.625"
15.625"
8.875"
7.625" 7.625"
42"
17.5"
14.375"
60.625"
*With Hearth Spacer
48"
1"
4.75"
43.75"
65.75"
71.5"
76.25"*
22"
12.875"
Secure Fireplace
To Hearth Spacer
Using Straps
Provided
Hearth Spacer
(Required for
Combustible Floor)
0" to Bottom
12" Min.
Each Side
Hearth
Extension
72" X 20"
Outside Air
Access Location
1.5" Airspace
Back and Sides
2" Chimney Airspace
Clearance to Combustible
Material
No Combustible
Material on Front
Face Except for
Mantel Applications
Gas Line
Access Location
18" Min. to
Perpendicular
Wall
SAFETY Continued
WARNING:Alwaysleaveglass
doors fully opened or fully closed
when operating replace.
WARNING: If replace is
to be installed on combustible
material, a Hearth Spacer must
be used. See Replacement and
Accessory Parts on page 18.
(see page 5)

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FIREPLACE INSTALLATION
3. Setreplacedirectlyinfrontofthisopen-
ingandslideunitbackuntilnailinganges
touch the side framing.
4. Checkthelevelofreplaceandshimwith
sheet metal if necessary.
5. Before securing fireplace to prepared
framing, ember protector (provided) must
be placed between hearth extension (not
supplied) and under bottom front edge
of replace to protect against glowing
embers falling through. If replace is to
be installed on a raised platform, a Z-type
ember protector (not supplied) must be
fabricated to t your required platform
height. The ember protector should ex-
tendunderreplaceaminimumof11/2".
The ember protector should be made of
galvanizedsheetmetal(28gaugemini-
mum to prevent corrosion.
6. Usingscrewsornails,securereplaceto
framingthroughangeslocatedonsides
ofreplace.
60.875"
65.7"
71.5"
76.25"*
31.625"
Secure Fireplace
To Hearth Spacer
Using Straps Provided
(Sides and Rear)
Figure 1 - Framing Dimensions
Figure 2 - Corner Installation
107.3"
78.875"
Maintain 1 1/2"
Clearance at Sides and
Back of Fireplace
1 1/2" Clearance
Not Required at
Nailing Flanges
SELECTING LOCATION
To determine the safest and most efcient
locationforthereplace,youmusttakeinto
consideration the following guidelines:
1. The location must allow for proper clear-
ances (see Figures 1 and 2).
2. Consider a location where the replace
will not be affected by drafts, air condition-
ing ducts, windows or doors.
3. A location that avoids the cutting of
joists or roof rafters will make installation
easier.
4. An outside air kit is available with this
replace(seeOptional Outside Air Kit on
page 6).
MINIMUM CLEARANCE TO
COMBUSTIBLES
Backandsidesofreplace 11/2" min.*
Frontofreplace 48"min.
Floor** 0" min.
Perpendicular wall to opening 18" min.
Top spacers 0" min.
Mantel clearance see Mantels, page 5
Chimney outer pipe surface 2" min.
*Notrequiredatnailinganges
** See step 2 of Framing
WARNING: Do not pack re-
quired air spaces with insulation
or other materials.
Minimum/Maximum Chimney Height
The minimum height of the chimney, mea-
sured from the base of the replace to the
uegasoutletofthetermination,is16feetfor
straightueorauewithoneelbowset.The
maximum distance between elbows is 6 feet.
For systems with two elbow sets, the minimum
height is 22 feet. The maximum height of any
system is 50 feet. This measurement includes
thereplace,chimneysectionsandtheheight
of the termination assembly at the level of the
uegasoutlet(seeFigure15,page9).
FRAMING
1. Frametheopeningforthereplaceusing
the dimensions shown in Figures 1 and 2.
2. Ifthereplaceistobeinstalleddirectlyon
carpeting, tile or any combustible material
includingwoodooring,thereplacemust
be installed on a hearth spacer designed
forusewiththisreplace(seeReplace-
ment and Accessory Parts, page 18).

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118116-01D 5
HEARTH EXTENSION
A hearth extension projecting a minimum of
20" in front of and a minimum of 12" beyond
eachsideofreplaceopeningisrequiredto
protectcombustibleoorconstructioninfront
ofthereplace.Fabricateahearthextension
using a material which meets the following
specications: a layer of noncombustible,
inorganic material having a thermal conduc-
tivity of K=0.84 BTU IN/FT, HR. F (or less) at
1" thick. For example, if the material selected
hasaKfactorof0.25,suchasglassber,the
following formula would apply:
0.25 x 1.0" = 0.30" thickness required
0.84
Thermal conductivity "K" of materials can be
obtained from the manufacturer or supplier of
the noncombustible material. If hearth exten-
sion is to be covered, use noncombustible
material such as tile, slate, brick, concrete,
metal, glass, marble, stone, etc. Provide
a means to prevent hearth extension from
shiftingandsealgapbetweenreplaceframe
and hearth extension with a noncombustible
material (see Figure 3).
FIREPLACE INSTALLATION
Continued
Figure 3 - Hearth Extension
Seal Gap
Fireplace Front
Ember Protector
Fireplace Front
Raised Hearth
Fireplace Front
Elevated
Ember Protector
Ember Protector
Seal Gap
Hearth
Extension
WARNING: Hearth extension
is to be installed only as shown
in Figure 3.
MANTELS
A mantel may be installed if desired (see
Figure 4). Woodwork such as wood trims,
mantels or any other combustible material
projecting from front face must not be placed
within12"ofreplaceopening.Combustible
materials above 12" and projecting more than
1 1/2"fromreplacemustnotbeplacedless
than15"fromtopopeningofreplace(NFPA
STD 211, Sec. 7-3.3.3).
Mantels or any other combustible material
also may come up to the side edge of the
blackmetalfaceofreplacejustaslongas
the projection from front face falls within limit
shown in Figure 4.
12 1/4" Ref.
15" Min.
12" Min.
11/2" Max.
3" Nom.
33°
Combustible
Material
Safe
Zone for
Projection of
Combustible
Materials
Fireplace Opening
Upper
Section of
Fireplace
Figure 4 - Mantel Clearances to
Combustible Material
6"
Ref.
VENTING INSTALLATION
OPTIONAL OUTSIDE AIR KIT (MODEL AK4/AK4F)
The installation of an outside air kit should
be performed during the rough framing of
thereplaceduetothenatureofit'slocation.
Outside combustion air is accessed through
a vented crawl space (AK4F) or through a
sidewall (AK4). This replace is equipped
with a barometric damper which allow outside
airtoowintoreplaceautomaticallywhen
needed.

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Figure 6 - Lineal Gain
LINEAL GAIN
PART NO. DESCRIPTION GAIN
48" Plantation Fireplace 66 1/2 "
12-12DM
12-12HT Pipe Section 10 5/8
"
18-12DM
18-12HT Pipe Section 16 5/8
"
24-12DM
24-12HT Pipe Section 23 5/8
"
36-12DM
36-12HT Pipe Section 34 5/8
"
48-12DM
48-12HT Pipe Section 46 5/8
"
RLT-12D
RLT-12HT
Round
Termination 7 3/4
"
*
STL-12D
Square Chase Top
with Slip Section
7 " to 15 " *
* The lineal gain for the terminations is mea-
suredtotheuegasoutletheight.
Hemmed
End
12 3/8"
Stainless
Inner Pipe
15"Galvanized
Outer Pipe
ASSEMBLY AND INSTALLATION OF
DOUBLE WALL CHIMNEY SYSTEM
Each double wall chimney section consists of a
galvanizedouterpipe,astainlesssteelinnerue
pipe and a wire spacer. The pipe sections must
be assembled independently as the chimney is
installed. When connecting chimney directly to
replace,inneruepipesectionmustbeinstalled
rstwithlancedsideup.Outerpipesectioncan
then be installed over ue pipe section with
hemmed end up. Press down on each pipe
section until lances securely engage the hem on
replacestarter.Wirewillassuretheproperspac-
ing between inner and outer pipe sections.
Continue to assemble chimney sections as
outlined above, making sure that both inner
and outer pipe sections are locked together.
When installing double wall snap-lock chim-
ney together, it is important to assure the joint
between chimney sections is locked. Check by
pulling chimney upward after locking. Chimney
will not come apart if properly locked. It is not
necessary to add screws to keep chimney
together (exception, see Figure 9, page 8).
Figure 5 - Outside Air Kit
Secure to Collars with Metal Tape,
Screws or Straps (Min. of 1/4" x 20"
insize)
Air Inlet
Location
Must Allow
For Bushes
or Snow
Vent Hood
Required for
Wall Installation
Air Inlet
Eyebrow
Vented Crawl Space
(Check Local Codes
Before Installing in a
Vented Crawl Space)
CAUTION: Combustion air
inlet ducts shall not terminate
in attic space.
VENTING INSTALLATION
Continued
CHIMNEY PIPE
The DESA Heating, LLC chimney system
consistsof12",18",24",36"'and48"snap-
lock, double-wall pipe segments, planned
for maximum adaptability to individual site
requirements. Actual lengths gained after
ttingoverlapsmustbetakenintoconsider-
ation (lineal gain) and are given in the lineal
gain chart (see Figure 6). Lineal gain is the
actual measurable length of a part after two or
more parts are connected. For Canada, use
chimney parts designated "HT".
WARNING: The opening in
the collar around the chimney at
the top of the replace must not
be obstructed. Never use blown
insulation to ll the chimney
enclosure.

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118116-01D 7
VENTING INSTALLATION
Continued
USING ELBOW OFFSETS (30E-12DM)
1. To achieve desired offset, you may install
combinations of 12", 18", 24", 36" and 48"
length of double wall pipe (see offset chart
and Figure 7).
OFFSET CHART (22-50 FT. SYSTEM HEIGHT)
Figure 7 - Typical Offset Terminations
Return
Elbow
Offset
Elbow
Return
Elbow
Offset
Elbow
6'Max.
6'Max.
6'Max.
6'Max.
6'Max.
6'Max.
Return
Elbow
Offset
Elbow
Offset
Elbow
Return
Elbow
A B C
Offset
Elbow
Ceiling
Support Pipe
12S-12DM
Return
Elbow
Figure 8 - Ceiling Support Pipe
12S-12DM
2" Min.
Straps
Straps
Straps
Straps
Detail A
Return Elbow
Detail B
Angle Firestop
See Detail A
See Detail B
2. Chimney weight above offset rests on
return elbow. Straps must be securely
nailed to rafters or joists (see Figure 8,
details A and B).
3. Maximum length of pipe between supports
(returnelbowor12S-12DM)is6'ofangle
run.Maximumoftwo6'anglerunsections
per chimney system (see Figure 7).
4. All pipe connections between offset and
return must be secured with two screws
on the outer pipe only (see Figure 9, page
8). Do not penetrate inner stainless.
OFFSET RISE CHIMNEY LENGTH
A B 12" 18" 24" 36" 48"
4 3/8" 16 3/8" ELBOW SET ONLY
9 3/4" 25 1/2" 1
12 3/4" 30 3/4" 1
15" 34 3/4" 1
18" 40" 1 1
21 1/4" 46 1/4" 1
23 3/4" 49 1/4" 1 1
27 3/4" 56 3/4" 1
30" 60 3/4" 1 1
33" 66" 1
36" 71" 1 1
38 1/4" 75" 2
41 1/4" 80 1/4" 1 1 1
45" 86 3/4" 2
46 3/4" 89 1/2" 1 1 1
51" 97" 1 1
53 1/4" 101" 2
56 1/4" 106 1/4" 2
59 1/4" 111 1/2" 1 1 1
61 3/4" 115 1/2" 1 2
64 3/4" 120 3/4" 1 2
68 1/4" 127" 2 1
70" 130" 1 1 2
74 1/4" 137 1/2" 1 2 1
76 3/4" 141 1/2" 1 2 1
79 3/4" 146 3/4" 4

www.desatech.com 118116-01D8
VENTING INSTALLATION
Continued
Figure 9 - Elbow Offset
B
A
Screws
FIRESTOP SPACERS (FS-10)
Firestop spacers are required at each point
wherechimneypenetratesaoorspace.Their
purpose is to establish and maintain the required
clearance between chimney and combustible
materials. When pipe passes through a framed
openingintoalivingspaceabove,therestop
must be placed onto the ceiling from below as
shown in Figure 10.
They also provide complete separation from
oneoorspacetoanotheroratticspaceas
required by most codes. When double wall
pipe passes through a framed opening into
anatticspace,restopmustbeplacedinto
anatticoorasshowninFigure11.
Figure 10 - Firestop Spacer with Living
Space Above Ceiling
Figure 11 - Firestop Spacer with Attic
Space Above Ceiling
Existing
Ceiling
Frame
Firestop
Spacer
Screws or
Staples
(Min. of 8)
Firestop
Spacer
Screws or Staples
(Min. of 8)
PENETRATING THE ROOF
To maintain a 2" clearance to the pipe on a
roof with a pitch, a rectangular opening must
be cut.
1. Determine center point through which pipe
will penetrate roof.
2. Determine center point of roof. Pitch is the
distance the roof drops over a given span,
usually 12". A 6/12 pitch means that the
roof drops 6" for each 12" one measure
horizontallydownfromroofrafters.
3. Use roof opening chart (Figure 12) to
determine the correct opening length and
ashingrequired.
4. Remove shingles around opening mea-
sured. Cut out this section.
5. Add next sections of pipe until the end
penetrates roof line. Check to see that
proper clearances are maintained. Extend
chimney by adding sections of double wall
pipe until pipe is minimum of 30" above
highest point of roof cutout. Termination
and chimney must extend a minimum of
36" above highest point where it passes
through roof.
Pitch Slope Opening
"A" Max.
Used Flashing
Model No.
Flat 0° 19.5" V6F-10DM
0-6/12 26.6° 22' V6F-10DM
6/12-
12/12 45.0° 27" V12F-10DM
Existing
Ceiling
Frame
19.5" Min. 30" Min.
2" Min.
2" Min.
2" Min.
Opening "A"
Figure 12 - Roof Opening Measurements

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118116-01D 9
VENTING INSTALLATION
Continued
FLASHING INSTALLATION (V6F-10DM
OR V12F-10DM)
Determineashingtobeusedwithroofopen-
ingchart.Slideashingoverpipeuntilbaseis
atagainstroof.Replaceasmanyshinglesas
neededtocoverexposedareaandashing
base. Secure in position by nailing through
shingles (see Figure 13). DO NOT NAIL
THROUGH FLASHING CONE.
Nail Only
Outer
Perimeter
of Flashing
Storm
Collar
Flashing
Cone
Underlap Shingles
at Bottom
Overlap
Shingles Top
and Sides Only
Figure 13 - Flashing Installation
Installing Flashing on a Metal Roof
When installing ashing on a metal roof, it
is required that putty tape be used between
ashingandroof.Flashingmustbesecured
to roof using #8 x 3/4" screws and then sealed
with roof coating to prevent leakage through
screw holes. A roof coating must also be
applied around the perimeter of ashing to
provide a proper seal.
Storm Collar Installation (SC2-1)
Place storm collar over pipe and slide down
until it is snug against open edge of ash-
ing (see Figure 14). Apply waterproof caulk
around perimeter of collar to provide a proper
seal.
Figure 14 - Storm Collar
Chimney
Pipe
Waterproof
Caulk
Storm
Collar Flashing
Terminations/Spark Arrestor
Thereplacesystemmustbeterminatedwith
the listed round top or chase terminations.
In any case, refer to installation instructions
supplied with termination.
CAUTION: Do not seal open-
ings on the rooftop ashing. Fol-
low the installation instructions
provided with the termination
being used.
Secure
Termination
to Outer
Pipe with 3
Screws
RLT-12D
(Shown)
Level of
Flue Gas
Outlet
Stainless
Inner Flue
Pipe
Waterproof
Caulking
Storm
Collar
Flashing
Underlap
Shingles
Figure 15 - Termination
Overlap
Shingles (Top
and Sides of
Flashing Base)
CHASE INSTALLATIONS
Instructions for chase installations are includ-
ed with the chase style termination chosen.
In a multiple chase installation, be sure to
provide adequate distance between termi-
nations to prevent smoke spillage from one
termination to another. Terminations must be
separated a minimum of 24" center to center
and stacked at a minimum vertical height dif-
ference of 18" (see Figure 16, page 10).
Note: If a decorative shroud is to be installed,
contact the manufacturer for specications.

www.desatech.com 118116-01D10
10 FOOT RULE
Alluegasoutletchimneyterminationsmust
extend a minimum of 3 feet in height above
the highest point where it passes through roof
and must be at least 2 feet above highest point
ofroofthatiswithinahorizontaldistanceof
10 feet (see Figure 17).
VENTING INSTALLATION
Continued
FINISHING FIREPLACE
Combustible materials, such as wallboard,
gypsum board, sheet rock, drywall, plywood,
etc. may make direct contact with sides and
toparoundreplaceface.Itisimportantthat
combustible materials do not overlap face
itself. Brick, glass, tile or other noncombustible
materials may overlap front face provided
they do not obstruct essential openings like
louvered slots or any other opening. When
overlapping with a noncombustible facing
material, use only noncombustible mortar or
adhesive.
24" Min.
24" Min.
18"
Min.
Typ.
Figure 16 - Multiple Chase Installation
10'
2'Min.
10'
3'Min.
2'Min. 3'Min.
Level of
Flue Gas
Outlet
Figure 17 - 10 Foot Rule
Seal
Opening
with
Refractory
Cement
Outside of
Fireplace
Gas
Line
Conduit
Repack
Insulation
Incoming
1/2" Black
Iron Pipe
Side
Firebrick
Finished
Side
Provide Enough Threaded
End for Fitting Connection
Figure 18 - Gas Line Installation
OPTIONAL GAS LINE INSTALLATION
Gas line hook up should be done by your
supplieroraqualiedserviceperson.
Note: Before you proceed, make sure your
gas supply is turned off. Use only a 1/2" black
iron pipe and appropriate ttings.
1. Remove gas line cover plate located on
eithersideofreplaceandpulloutinsu-
lation from gas line conduit sleeve. Save
insulation for reuse. Replace screws.
2. Runa1/2"blackirongaslineintore-
place through rear at gas line conduit
sleeve (if using a raised platform, add
height). Provide sufcient gas line into
replacechamberforttingconnection
(see Figure 18).
Note: Secure incoming gas line to wood
framing to provide rigidity for threaded
end.
3. Repack insulation around gas line and into
sleeve opening. Seal any gaps between
gas line and refractory knockout hole with
refractory cement or commercial furnace
cement, Install gas appliance or cap off
gas line if desired.

www.desatech.com
118116-01D 11
OPTIONAL GAS LINE INSTALLATION
Continued
CAUTION: All gas piping
and connections must be tested
for leaks after the installation
is completed. After ensuring
that the gas valve is on, apply
soap and water solution to all
connections and joints. Bubbles
forming show a leak. Correct
all leaks at once. DO NOT USE
AN OPEN FLAME FOR LEAK
TESTING AND DO NOT OPER-
ATE ANY APPLIANCE IF A LEAK
IS DETECTED. LEAK TESTING
SHOULD BE DONE BYA QUALI-
FIED SERVICE PERSON.
WARNING: Do not oper-
ate an unvented gas log set in
this replace with the chimney
removed.
If you install a decorative gas appliance
(vented gas log), the decorative gas appliance
BRICK INSTALLATION
Figure 19 - Installing Brick
Brick Stamped Letter Location
Brick
Housing
Flanges
must comply with the Standard for Decorative
Gas Appliance for Installation in Solid Fuel
Burning Fireplaces, ANS Z21.60, Z21.84 or
RG 2-72 and shall also be installed in accor-
dance with the National Fuel Gas Code, ANSI
Z223.1/NFPA 54 latest edition.
WARNING: If the replace
has been used for wood burning,
the rebox and chimney must be
cleaned of soot, creosote and
ashes by a qualied chimney
cleaner. Creosote will ignite if
heavily heated.
WARNING: When using a
decorative vented gas log, the
damper must be removed or
permanently locked in the fully
open position and the glass
doors must be in the fully open
position.
Installation of brick should be
done after the replace is placed
in a permanent location.
Brick housing panels are already installed in
rebox.Eachhousingisstampedwithalet-
ter(fullsizebricksarenotstamped).These
letters will help identify brick when installing
(see Figure 19). It is important to install these
bricksexactlyasinstructed.Pressbrickrmly
into brick housing until it snaps. The groove
line on side of brick will come in contact with
the ange on brick housing. This secures
brick into housing. Smaller bricks may require
a small portion of furnace cement applied to
back of brick to secure it until grouting has
been completed.
Thebricksarepackagedinve(5)separate
boxes. These boxes are labeled by sections
oftherebox.
Box #1 - Hearth Panel
Box #2 - Rear Panel, Lower Section
Box #3 - Rear Panel, Upper Section
Box #4 - Right Panel
Box #5 - Left Panel
Install bricks one section at a time starting
with hearth panel followed by the rear panel-
lower section, rear panel - upper section and
then left and right panels. IT IS IMPORTANT
TO INSTALL BRICKS IN SEQUENCE.
PLEASE NOTE, FULL SIZE BRICKS ARE
NOT STAMPED.

www.desatech.com 118116-01D12
NOTICE: An ash lip kit is avail-
able for this replace (see Re-
placement andAccessory Parts,
page 18). If using ash lip kit, the
standard optional glass door kit
available for this replace can
not be installed. If using ash lip,
obtain ash lip kit prior to brick
installation.
INSTALLING BRICK OVER GAS
LINE ACCESS HOLE
Use brick “PU” for right side panel and brick
“PAG” for left side panel if an optional gas
line is installed. Mount brick “PU” or “PAG”
as shown in Figure 20. It is important that
the gas line access hole is in its proper loca-
tion. Gas line access hole on brick “PU” and
“PAG” must align with gas line access hole
on brick housing.
Figure 20 - Installing Brick Around Gas
Line Access Hole
RIGHT PANEL
LEFT PANEL
PE
FULL
FULL
PT
PL
AAE
AAF
AAE
PT
PF
BRICK “PU”
BRICK “PAG”
BRICK INSTALLATION
Continued
HERRINGBONE BRICK INSTALLATION
AW
AW
AW
AW
AW
AW
AW
AW
AW
AAE AAB
PAG or PU
PT
PL
PF
PT
PT
PT
PT
PT
PT
PT
PT
PT
PT
PAF
PP
PG
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
PO
PE
PT
PP
PT
PT
PT
PT
PT
PT
PT
PT
PT
PT
FULL
PN
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
PD
PA
PE
PA
PF
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
FULL
PE
FULL
PF
FULL
PD
PJ
PB
PT
PT
PT
PN
PN
PN
PP
PP
PO PO
PM
PH
PB
PB
PAE
PAE
PAE
PAI
PAJ
FULL
FULL
PB
PB PF
PF
PB
PB
PB
PH
PS
PS
PS
PW
PX
PX
PZ
PAA
PAB
PAC
PAD
FULL
FULL
FULL
FULL
FULL
PE
PE
PG
PG
FULL
FULL
FULL
FULL
FULL
PN
PN
PQ
PN
PN
PN
PT
PT
PT
PB
PG PV
FULL
PAN
AK
AW
AW
AW
AW
AW
AW
AW
AW
AW
AK
AAE AAF
AAC AAE
AAEAAE
AAD AAD AAD PK
PU or PAG
AAK AAK
AAD PAP AAA AAD
PAO
PAN
PAM
PAL
PAK
FULL FULL FULL
FULL FULL FULL FULL
FULL FULL FULL G
H
G
H
YY
WW
FULL FULL FULL FULL
FULL FULL FULL FULL FULL
If using an Ash Lip
Kit, this row of bricks
will be replaced.
The Glass Door Kit
available for this
replaceCANNOT
be used with the
Ash Lip Kit.

www.desatech.com
118116-01D 13
BRICK MATRIX
BRICK MATRIX Full AAA AAB AAC AAD AAE AAF AAK AW AX G H PA PAA
Box #1 Hearth 20 - - - - - - 2 - - 2 2 - -
Box #2 Rear - Lower 11 - - - - 3 - - - - - - 2 -
Box #3 Rear - Upper 24 - - - 3 - - - - - - - - -
Box #4 Left 21 - 1 - 1 1 - - 9 1 - - - -
Box #5 Right 21 1 - 1 1 1 1 - 9 1 - - - 1
TOTAL 97 1 1 1 5 5 1 2 18 2 2 2 2 1
BRICK MATRIX (Continued)
BRICK MATRIX PAB PAC PAD PAE PAF PAG PAH PAI PAJ PAK PAL PAM
Box #1 Hearth - - - - - - - - - - - -
Box #2 Rear - Lower - - - - - - - - - - - -
Box #3 Rear - Upper - - - - - - - - - - - -
Box #4 Left - - - 3 1 1 1 1 1 1 1 1
Box #5 Right 1 1 1 - - - - - - - - -
TOTAL 111311111111
HERRINGBONE BRICK MATRIX
BRICK MATRIX (Continued)
BRICK MATRIX PAN PAO PAP PB PC PD PE PF PG PH PJ PK
Box #1 Hearth - - - - - - - - - - - -
Box #2 Rear - Lower - - - 8 2 2 2 2 - 1 1 1
Box #3 Rear - Upper - - - 1 - - 2 2 3 1 - 1
Box #4 Left 1 1 1 - - - 1 1 - - - -
Box #5 Right - - - - - - 1 1 - - - -
TOTAL 111922663212
BRICK MATRIX (Continued)
BRICK MATRIX PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ W Y TOTAL
Box #1 Hearth - - - - - - - - - - - - - - - 2 2 30
Box #2 Rear - Lower - - - - - - - - - - 1 - - - - - - 36
Box #3 Rear - Upper - 1 8 2 2 1 3 - 6 - - - - - - - - 60
Box #4 Left 1 - - 1 1 - - - 11 - - - - - - - - 64
Box #5 Right - - 1 1 1 - - 3 11 1 - 1 1 1 1 - - 64
TOTAL 1 1 9 4 4 1 3 3 28 1 1 1 1 1 1 2 2 254
BRICK INSTALLATION
Continued

www.desatech.com 118116-01D14
BRICK INSTALLATION
Continued
INSTALLING Z-SHAPED GRATE
RETAINER BRACKET
Beforegrouting bricks,locate thez-shaped
grate retainer brackets on top of hearth bricks
as shown in Figure 21. Position retainer
brackets at 8 3/4" apart from center to center
of notch.
Figure 21 - Installing Grate Retainer
Bracket
GROUTING INSTRUCTIONS
Material provided:
2 - 10 lb. bags of cement
2 - 10 lb. bags of sand
Material required:
1 - Piping bag
1 - Joints striker
1 - Heavy duty mixing bucket
1 - Trowel
1. Moisten brick surface with damp sponge
or spray bottle just prior to application.
When bricks are wet, any excess grout
mixture on bricks will easily wipe off.
2. In a heavy duty mixing bucket, pour seven
(7) cups of water. Add 5 lbs. (half of a bag)
of sand and 5 lbs (half of a bag) of cement.
Mix together thoroughly using a power drill
with mixing wand attachment.
3. The overall length of piping bag should
be about 16". If bag is longer than 16",
cutitdowntosizebyremovingendwith
larger opening. This will make bag easier
to handle.
4. Put 2 to 3 cups of grout mixture into pip-
ing bag making sure smaller opening is
downward and over a moist towel to avoid
Figure 22 - Grouting Brick
spilling. Place a wet towel over bucket
making sure it is directly on the surface of
grout mixture. This will keep mixture moist
and it will not dry out before use.
5. Begin grouting by first doing a “Filler
Pass”.Thisisdonebyllingthejointabout
3/4 full with grout mixture. It is important
to work with only 6 bricks at a time so
groutdoesn'thavetimetosetupbefore
striking.
6. Complete a “Finishing Pass” around 6
bricksyoujustputllerpassaround.This
is done by slowly lling in remainder of
joint with a thick amount of grout mixture.
Mixture should be a little higher than the
brick surface.
7. Using a trowel, remove excess grout mix-
ture by moving trowel in the direction of
the joint. Grout mixture in the joint should
nowbeushwithbricksurface.
8. Using a joint striker, force grout mixture
into joint and sweep back and forth
until grout is smooth and round. If grout
becomes too shallow, add more grout
mixture with piping bag and strike again.
9. Continue procedure around each group of
6bricksuntilanentirepanelisnished.
10. Using trowel, scrape in direction of joints
to remove any grout that may have col-
lected around bricks during striking. If
desired, take a moist sponge and lightly
sweep over bricks to remove any grout
that may have gotten on bricks. DO NO
PRESS HARD OR RUB IN A CIRCULAR
MOTION. This will press grout into brick
and turn brick a different color.
Allow 72 hours before
operating replace.

www.desatech.com
118116-01D 15
GLASS DOOR INSTALLATION
5. Place rail back on bricks and align holes.
Secure using 9 concrete screws provided
with glass door kit.
6. Secure mounting clips to top and bottom
rails (see Figure 24).
Figure 24 - Mounting Door Retaining
Clips
Retaining
Clip
Top Rail
Bottom Rail
Figure 23 - Securing Door Rails to
Fireplace
Bottom Rail
(Use as a
Template before
Drilling)
Concrete
Screws
Top Rail
Drill Holes
into Bricks
Remove Screws
then Replace to
Secure Top Rail
Installing Glass Doors
After spring clips have been installed some
adjustments may be needed. Install doors
using the following steps:
1. With bi-fold doors completely folded, in-
sert bottom pivot pin into bottom retaining
clip located at far left and far right side of
bottom rail. Swing door to vertical posi-
tion making sure top pins slide into top
door rail. Door is installed when top door
pin snaps into spring clip (see Figure 25,
page 16).
2. Repeat step 1 for remaining door.
Ifyounddoorsdonotcloseproperlyordo
not appear level or straight, proceed with sec-
tion on door adjustment, page 16.
IMPORTANT: Install top and bot-
tom rails and hardware before
installing glass door panels.
DOOR AND RAIL INSTALLATION
FOR MODELS BDMO48E, BDMO48G
AND BDMO48C
IMPORTANT: This optional glass door kit can
NOTbeusedwithyourreplaceifyouhave
installed the optional Ash Lip Kit.
Rail installation
1. Remove screws securing top face to
rebox(seeFigure23).
2. Align holes on rail to be installed at top
and replace screws. Note: Door rails are
identical until spring clips are in place.
3. Using remaining door rail as a template,
place along front row of bricks at bottom
makingsurerailfrontsurfaceisushwith
replacebottomfacesurface.Markhole
centers and remove rail (see Figure 23).
4. Drill 9 - 5/32" diameter holes about 1"
deep directly into bricks using a 5/32"
concrete drill bit (not provided).

www.desatech.com 118116-01D16
Figure 27 - Bi-Fold Glass Doors
Doors Fully Closed
Fireplace Front
Fireplace Front
Doors
Fully Opened
OPERATION AND MAINTENANCE GUIDELINES
DOOR ADJUSTMENT
Remove doors and slightly loosen upper
spring clips. Replace and fully close doors.
Use 1/8" shims (any material) to level doors.
Once proper setting is achieved, carefully
open doors enough to access top retaining
clips with a Phillips screwdriver. Tighten
screws. See Figure 26.
Figure 25 - Installing Doors
Figure 26 - Adjusting Bi-Fold Doors
GLASS DOOR INSTALLATION
Continued
Bottom
Retaining
Clip
Slide Top
Pin Into Top
Retaining Clip
Spring Clip
Side Front
Face
Partially
Opened
Door
GLASS DOORS
Glassdoorsareoptionalwithreplace.When
replaceisinoperation,doorsmustbefully
openedorfullyclosedpositiononlyorare
hazardmaybecreated(seeFigure27).
Areplaceequippedwithglassdoorsoper-
atesmuchdifferentlythanareplacewithan
openfront.Areplacewithglassdoorshasa
limited amount of air for combustion.
Excessiveheatwithinreplacecanresultif
too large a re is built or if combustion air
gate is not completely open. The following tips
shouldbefollowed to assurethatbothre-
place and glass door retain their beauty and
functionproperly.Bothuedamperandglass
doorsmustbefullyopenedbeforestartingre.
Thiswillprovidesufcientcombustionairand
maintainsafetemperaturesinrebox.
IMPORTANT: Glass must be allowed to warm
slowly and evenly. Such materials as pitch/
wax laden logs, very dry mill end lumber and
large amounts of paper or cardboard boxes
cancreateanexcessivelyhotreandshould
notbeburnedinthisreplace.Alwayskeep
therewellbackfromdoorsandneverallow
amestocontactglass.
WARNING: Fireplaces
equipped with glass doors
should be operated only with
doors fully opened or doors fully
closed. Doors, if left partly open,
may draw gas and ame out of
the replace opening creating
risks of both re and smoke.

www.desatech.com
118116-01D 17
Cleaning Glass
Clean glass with any commercial glass
cleaner or soap and water. Do not use any
abrasive material to clean glass. Do not clean
glass with any cool water if glass is still hot
fromthereandsmoke.
A gas line or gas log lighter may be installed
for the purpose of installing a vented or vent-
free decorative gas appliance incorporating an
automatic shutoff device and complying with
the Standard for Decorative Gas Appliances
for Installation in Vented Fireplaces, ANSI
Z21.60 or American Gas Association draft
requirements for Gas Fired Log Lighters for
Wood Burning Fireplaces, Draft NO. 4 dated
August, 1993.
If you wish to install an unvented (vent-free)
gas log set, only unvented gas log sets which
have been found to comply with the standard
for unvented room heaters, ANSI Z21.11.2 are
tobeinstalledinthisreplace.
DAMPER HANDLE OPERATION
The damper handle opens and closes the
damper blade and is located in the upper rear
sideofreplacejustaboverearbricks.Rotate
handle counterclockwise slightly to disengage
from retaining bracket. Swing slowly toward
openingofreplace.Engagehandletosec-
ondary bracket located at front of replace
inner wall (see Figure 28).
CAUTION: When operating
damper door, please be aware of
sharp edges and corners. Open
and close damper door slowly to
avoid injury.
WARNING: Risk of re! Re-
place grate with DESA model
109496-01 grate only. This grate
has been designed to keep the
operation of your replace safe
and efcient.
OPERATION AND MAINTENANCE GUIDELINES
Continued
Figure 28 - Operating Damper Handle
Damper
Handle
Retaining
Bracket
(Holds
Damper
Door
Closed)
Swing Door Down to Open
Swing Door
Up to Close
Secondary
Retaining
Bracket
(Holds
Damper
Door
Open)
FULLY OPEN POSITION
FULLY CLOSED POSITION

www.desatech.com 118116-01D18
REPLACEMENT AND ACCESSORY PARTS
BI-FOLD GLASS MASONRY DOOR
BDMO48E - 48" Ebony
BDMO48G - 48" Pewter
BDMO48C - 48" Oiled Bronze
DOUBLE WALL PIPE - 12-12DM,
18-12DM, 24-12DM, 36-12DM, 48-12DM,
12-12HT, 18-12HT, 24-12HT, 36-12HT and
48-12HT
30° OFFSET AND RETURN
30E-12DM and 30E-12HT
GRATE
109496-01 - Model GM50
EMBER PROTECTOR - EP36
OPTIONAL OUTSIDE AIR KIT FOR
FLOOR INSTALLATION - AK4F
OPTIONAL OUTSIDE AIR KIT FOR
SIDEWALL INSTALLATION - AK4
STORM COLLAR - SC2-1
FIRESTOP SPACER - FS-10
ROOF FLASHING
V6F-10DM - 0 to 6/12 Pitch
V12F-10DM - 6/12 to 12/12 Pitch

www.desatech.com
118116-01D 19
REPLACEMENT AND ACCESSORY PARTS
Continued
SQUARE CHASE-TOP
TERMINATION - STL-12D
ROUND TOP TERMINATIONS
RLT-12D AND RLT-12HT
TECHNICAL SERVICE
OPTIONAL ASH LIP KIT (BRICKS)
AL48
OPTIONAL HEARTH SPACER
HS48
24" ROUND WOODNOOK - DHR-24
You may have further questions about installa-
tion, operation, or troubleshooting. If so, con-
tact DESA Heating, LLC at 1-866-672-6040.
When calling please have your model and
serial numbers of your heater ready.
You can also visit DESA Heating, LLC’s web
site at www.desatech.com.

NOT A UPC
118116-01
Rev. D
10/07
118116 01
DESA Heating, LLC
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
www.desatech.com
1-866-672-6040