Desa F48H Quick start guide

For more information, visit www.desatech.com
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.
7KLV¿UHSODFHLVDSSURYHGIRUXVHDVDZRRGEXUQLQJ
¿UHSODFHRUIRUXVHZLWKDYHQWHGJDVORJDSSURYHGWR
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.
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CAN/ULS-S610-M87 standard as a FACTORY BUILT
APPLIANCE.
FOR CANADA: The authority having jurisdiction (such
DVWKHPXQLFLSDOEXLOGLQJGHSDUWPHQW¿UHGHSDUWPHQW
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-
WDQFH RU DGGLWLRQDO LQIRUPDWLRQ &RQVXOW D TXDOL¿HG
installer or local distributor.
SAFETY
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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
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or liquids in the vicinity of this
or any other appliance.
• Due to high temperatures, the
appliance should be located
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furniture and draperies.
• Do not place clothing or other
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the appliance.
• Never leave children unat-
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LQWKH¿UHSODFH
WARNING: Use solid wood
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only. When processed wood
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poke or stir the logs while they
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that have been evaluated for
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UHIHU WR ¿UH ORJ ZDUQLQJV DQG
caution markings on packaging
prior to use.
IMPORTANT: Check local codes
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Before beginning the installation of the
fireplace, read these instructions through
completely.
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components are safe when installed accord-
ing to this installation manual. Unless you use
DESAHeating, LLC components, which have
EHHQGHVLJQHGDQGWHVWHGIRUWKH¿UHSODFH
V\VWHP\RXPD\FDXVHD¿UHKD]DUG
• 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
RIWKH¿UHSODFH&RQVXOWWKHORFDOEXLOGLQJ
codes as to the particular requirements
concerned with the installation of all factory
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WARNING: Do not install a
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the manufacturer's instructions
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WKLV¿UHSODFHKDVEHHQWHVWHGIRU
use with this insert.
TABLE OF CONTENTS
Safety .................................................................. 2
6SHFL¿FDWLRQV ...................................................... 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

www.desatech.com
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
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 :$51,1* ,I ¿UHSODFH LV
to be installed on combustible
material, a Hearth Spacer must
be used. See Replacement and
Accessory Parts on page 18.
(see page 5)

www.desatech.com 118116-01D4
FIREPLACE INSTALLATION
 6HW¿UHSODFHGLUHFWO\LQIURQWRIWKLVRSHQ-
LQJDQGVOLGHXQLWEDFNXQWLOQDLOLQJÀDQJHV
touch the side framing.
 &KHFNWKHOHYHORI¿UHSODFHDQGVKLPZLWK
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
RI¿UHSODFHWRSURWHFWDJDLQVWJORZLQJ
HPEHUV IDOOLQJ WKURXJK ,I ¿UHSODFH LV WR
be installed on a raised platform, a Z-type
ember protector (not supplied) must be
IDEULFDWHGWR¿W\RXUUHTXLUHGSODWIRUP
height. The ember protector should ex-
WHQGXQGHU¿UHSODFHDPLQLPXPRI1/2".
The ember protector should be made of
JDOYDQL]HGVKHHWPHWDOJDXJHPLQL-
mum to prevent corrosion.
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IUDPLQJWKURXJKÀDQJHVORFDWHGRQVLGHV
RI¿UHSODFH
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
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ORFDWLRQIRUWKH¿UHSODFH\RXPXVWWDNHLQWR
consideration the following guidelines:
1. The location must allow for proper clear-
ances (see Figures 1 and 2).
 &RQVLGHU D ORFDWLRQ ZKHUH WKH ¿UHSODFH
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
¿UHSODFHVHHOptional Outside Air Kit on
page 6).
MINIMUM CLEARANCE TO
COMBUSTIBLES
%DFNDQGVLGHVRI¿UHSODFH 1/2" min.*
)URQWRI¿UHSODFH PLQ
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.
1RWUHTXLUHGDWQDLOLQJÀDQJHV
** See step 2 of Framing
WARNING: Do not pack re-
quired air spaces with insulation
or other materials.
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The minimum height of the chimney, mea-
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ÀXHJDVRXWOHWRIWKHWHUPLQDWLRQLVIHHWIRU
VWUDLJKWÀXHRUDÀXHZLWKRQHHOERZVHW7KH
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
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of the termination assembly at the level of the
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FRAMING
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the dimensions shown in Figures 1 and 2.
 ,IWKH¿UHSODFHLVWREHLQVWDOOHGGLUHFWO\RQ
carpeting, tile or any combustible material
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be installed on a hearth spacer designed
IRUXVHZLWKWKLV¿UHSODFHVHHReplace-
ment and Accessory Parts, page 18).

www.desatech.com
118116-01D 5
HEARTH EXTENSION
A hearth extension projecting a minimum of
20" in front of and a minimum of 12" beyond
HDFKVLGHRI¿UHSODFHRSHQLQJLVUHTXLUHGWR
SURWHFWFRPEXVWLEOHÀRRUFRQVWUXFWLRQLQIURQW
RIWKH¿UHSODFH)DEULFDWHDKHDUWKH[WHQVLRQ
using a material which meets the following
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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
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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
VKLIWLQJDQGVHDOJDSEHWZHHQ¿UHSODFHIUDPH
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
:$51,1*+HDUWKH[WHQVLRQ
is to be installed only as shown
in Figure 3.
MANTELS
A mantel may be installed if desired (see
Figure 4). Woodwork such as wood trims,
mantels or any other combustible material
projecting from front face must not be placed
ZLWKLQRI¿UHSODFHRSHQLQJ&RPEXVWLEOH
materials above 12" and projecting more than
1 1/2IURP¿UHSODFHPXVWQRWEHSODFHGOHVV
WKDQIURPWRSRSHQLQJRI¿UHSODFH1)3$
STD 211, Sec. 7-3.3.3).
Mantels or any other combustible material
also may come up to the side edge of the
EODFNPHWDOIDFHRI¿UHSODFHMXVWDVORQJDV
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
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Outside combustion air is accessed through
a vented crawl space (AK4F) or through a
VLGHZDOO$.7KLV¿UHSODFHLVHTXLSSHG
with a barometric damper which allow outside
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needed.

www.desatech.com 118116-01D6
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-
VXUHGWRWKHÀXHJDVRXWOHWKHLJKW
Hemmed
End
12 3/8"
Stainless
Inner Pipe
*DOYDQL]HG
Outer Pipe
ASSEMBLY AND INSTALLATION OF
DOUBLE WALL CHIMNEY SYSTEM
Each double wall chimney section consists of a
JDOYDQL]HGRXWHUSLSHDVWDLQOHVVVWHHOLQQHUÀXH
pipe and a wire spacer. The pipe sections must
be assembled independently as the chimney is
installed. When connecting chimney directly to
¿UHSODFHLQQHUÀXHSLSHVHFWLRQPXVWEHLQVWDOOHG
¿UVWZLWKODQFHGVLGHXS2XWHUSLSHVHFWLRQFDQ
WKHQEHLQVWDOOHGRYHUÀXHSLSHVHFWLRQZLWK
hemmed end up. Press down on each pipe
section until lances securely engage the hem on
¿UHSODFHVWDUWHU:LUHZLOODVVXUHWKHSURSHUVSDF-
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"
LQVL]H
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
FRQVLVWVRIDQGVQDS
lock, double-wall pipe segments, planned
for maximum adaptability to individual site
requirements. Actual lengths gained after
¿WWLQJRYHUODSVPXVWEHWDNHQLQWRFRQVLGHU-
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
WKHWRSRIWKH¿UHSODFHPXVWQRW
be obstructed. Never use blown
LQVXODWLRQ WR ¿OO WKH FKLPQH\
enclosure.

www.desatech.com
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
0D[
0D[
0D[
0D[
0D[
0D[
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
UHWXUQHOERZRU6'0LVRIDQJOH
UXQ0D[LPXPRIWZRDQJOHUXQVHFWLRQV
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
ZKHUHFKLPQH\SHQHWUDWHVDÀRRUVSDFH7KHLU
purpose is to establish and maintain the required
clearance between chimney and combustible
materials. When pipe passes through a framed
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must be placed onto the ceiling from below as
shown in Figure 10.
They also provide complete separation from
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required by most codes. When double wall
pipe passes through a framed opening into
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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
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3. Use roof opening chart (Figure 12) to
determine the correct opening length and
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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
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Used Flashing
Model No.
Flat 0° 19.5" V6F-10DM
0-6/12 26.6°  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

www.desatech.com
118116-01D 9
VENTING INSTALLATION
Continued
FLASHING INSTALLATION (V6F-10DM
OR V12F-10DM)
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LQJFKDUW6OLGHÀDVKLQJRYHUSLSHXQWLOEDVHLV
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QHHGHGWRFRYHUH[SRVHGDUHDDQGÀDVKLQJ
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
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is required that putty tape be used between
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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
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provide a proper seal.
Storm Collar Installation (SC2-1)
Place storm collar over pipe and slide down
XQWLOLWLVVQXJDJDLQVWRSHQHGJHRIÀDVK-
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
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the listed round top or chase terminations.
In any case, refer to installation instructions
supplied with termination.
CAUTION: Do not seal open-
LQJVRQWKHURRIWRSÀDVKLQJ)RO-
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,
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www.desatech.com 118116-01D10
10 FOOT RULE
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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
RIURRIWKDWLVZLWKLQDKRUL]RQWDOGLVWDQFHRI
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
WRSDURXQG¿UHSODFHIDFH,WLVLPSRUWDQWWKDW
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
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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
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Note: Before you proceed, make sure your
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LURQSLSHDQGDSSURSULDWH¿WWLQJV
1. Remove gas line cover plate located on
HLWKHUVLGHRI¿UHSODFHDQGSXOORXWLQVX-
lation from gas line conduit sleeve. Save
insulation for reuse. Replace screws.
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place through rear at gas line conduit
sleeve (if using a raised platform, add
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(see Figure 18).
Note: Secure incoming gas line to wood
framing to provide rigidity for threaded
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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.