Desa BVC-36Y Quick start guide

FIREBOX MODELS
BVC-36Y, BVC-42Y AND BVC-50Y
NATURAL GAS MODULE MODELS
BBM-36N-TKA, BBM-42N-TKA AND
BBM-50N-TKA
PROPANE/LP MODULE MODELS
BBM-36P-TKA, BBM-42P-TKA AND
BBM-50P-TKA
SPLIT BRICK PANELS WITH BRICKS
SERIES MBK-36,42,50(SS)(SH)-(R)I)
MASONRY RADIANT GAS FIREPLACE
WITH ELECTRONIC IGNITION
OWNER’S OPERATION AND INSTALLATION MANUAL
For more information, visit www.desatech.com
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.
— WHAT TO DO IF YOU SMELL GAS :
• Donottrytolightanyappliance.
• Donottouchanyelectricalswitch;
• Donotuseanyphoneinyourbuilding.
• Immediatelycallyourgassupplierfromaneighbor’s
phone.Followthegassupplier’sinstructions.
• Ifyoucannotreachyourgassupplier,callthere
department.
— Installationandservicemustbeperformedbyaquali-
edinstaller,serviceagencyorthegassupplier.
INSTALLER:Leavethismanualwiththeappliance.
CONSUMER:Retainthismanualforfuturereference.
WARNING:Iftheinformationintheseinstructions
isnotfollowedexactly,areorexplosionmayresult
causingpropertydamage,personalinjuryordeath.

www.desatech.com 122280-01D2
 WARNING: Improper installation, adjustment, al-
teration, service or maintenance can cause injury or
propertydamage.Refertothismanualforcorrectin-
stallation and operational procedures. For assistance
or additional information consult a qualied installer,
service agency or the gas supplier.
NOT FOR USE WITH SOLID FUEL
CHECK LOCAL CODES PRIOR TO INSTALLATION
SAVE THIS BOOK
Thisbookisvaluable.Inadditiontoinstructingyouon
howtoinstallandmaintainyourappliance,italsocon-
tainsinformationthatwillenableyoutoobtainreplace-
mentpartsoroptionalaccessoryitemswhenneeded.
Keepitwithyourotherimportantpapers.
StateofMassachusetts:Theinstallationmustbemade
byalicensedplumberorgastterintheCommonwealth
of Massachusetts.
TABLE OF CONTENTS
Safety .................................................................. 3
Unpacking............................................................ 4
Introduction.......................................................... 5
Selecting Location ............................................... 6
Specications ...................................................... 6
Product Dimensions ............................................ 7
Preinstallation Preparation ................................ 10
Venting Installation ............................................ 12
Installation ......................................................... 17
Operation........................................................... 31
Cleaning and Maintenance................................ 33
Replacement Parts............................................ 34
Service Hints ..................................................... 34
Technical Service............................................... 34
Accessories ....................................................... 34
Wiring Diagram.................................................. 35
Troubleshooting ................................................. 36
Parts .................................................................. 38
Warranty ..............................................Back Cover

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122280-01D 3
SAFETY
WARNING: This product con-
tainsand/orgenerateschemicals
knowntotheStateofCalifornia
tocausecancerorbirthdefects
orotherreproductiveharm.
IMPORTANT:Readthisowner’s
manualcarefullyandcompletely
before trying to assemble, op-
erate or service this replace.
Improper use of this replace
cancauseseriousinjuryordeath
from burns, re, explosions,
electrical shock and carbon
monoxidepoisoning.
DANGER:Carbonmonoxide
poisoningmayleadtodeath!
This replace is a vented product. This replace
will not produce any gas leakage into your home
if properly installed. This replace must be
properly installed by a qualied service person.
If this unit is not properly installed by a qualied
service person, gas leakage can occur.
CarbonMonoxidePoisoning: Early signs of
carbon monoxide poisoning resemble the u,
with headaches, dizziness or nausea. If you
have these signs, the replace may not have
been installed properly. Getfreshairatonce!
Have replace inspected and serviced by a
qualied service person. Some people are more
affected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the inu-
ence of alcohol and those at high altitudes.
Propane/LP gas and natural gas are both
odorless. An odor-making agent is added
to each of these gases. The odor helps you
detect a gas leak. However, the odor added
to these gases can fade. Gas may be present
even though no odor exists.
Make certain you read and understand all
warnings. Keep this manual for reference. It
is your guide to safe and proper operation of
this replace.
WARNING: Any change to
thisreplaceoritscontrolscan
bedangerous.
1. This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convertible for use with
other gases unless a certied kit is used.
2. For propane/LP replace, do not place
propane/LP supply tank(s) inside any
structure. Locate propane/LP supply
tank(s) outdoors. To prevent performance
problems, do not use propane/LP fuel tank
of less than 100 lbs. capacity.
3. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not
use any phone in your building
• immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier's instructions
• if you cannot reach you gas supplier, call
the re department.
4. Never install the replace
• in a recreational vehicle
• in high trafc areas
• in windy or drafty areas
5. This replace reaches high temperatures.
Keep children and adults away from hot
surfaces to avoid burns or clothing igni-
tion. Fireplace will remain hot for a time
after shutdown. Allow surfaces to cool
before touching.
6. Carefully supervise young children when
they are in the room with replace.
7. A hearth extension is not required with this
appliance. If one is installed, it is for aes-
thetic purposes only and does not have
to meet the standard requirements.
8. Turn replace off and let cool before ser-
vicing or repairing. Only a qualied service
person should install, service or repair
this replace. Have replace inspected
annually by a qualied service person.
9. You must keep control compartments,
burners and circulating air passages clean.
More frequent cleaning may be needed due
to excessive lint and dust from carpeting,
bedding material, etc. Turn off the gas valve
and pilot light before cleaning replace.
10. Have venting system inspected annually by
a qualied service person. If needed, have
venting system cleaned or repaired.

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11. Keep the area around your replace clear
of combustible materials, gasoline and
other ammable vapor and liquids. Do
not run replace where these are used or
stored. Do not place items such as clothing
or decorations on or around replace.
12. Do not use this replace to cook food or
burn paper or other objects.
13. Do not use any solid fuels (wood, coal,
paper, cardboard, etc.) in this replace.
Use only the gas type indicated on re-
place nameplate.
14. This appliance, when installed, must be
electrically grounded in accordance with
local codes or, in the absence of local
codes, with the National Electrical Code,
ANSI/NFPA 70.
15. Do not obstruct the ow of combustion
and ventilation air in any way. Provide
adequate clearances around air open-
ings into the combustion chamber along
with adequate accessibility clearance for
servicing and proper operation.
16. Do not install replace directly on carpet-
ing, vinyl tile or any combustible material
other than wood. The replace must set
on a metal or wood panel extending the
full width and depth of the replace.
17. Do not use replace if any part has been
exposed to or under water. Immediately
call a qualied service person to arrange
for replacement of the unit.
18. Do not operate replace if any log is
broken.
19. Do not use a blower insert, heat exchang-
er insert or other accessory not approved
for use with this replace.
20. Provide adequate clearances around air
openings.
SAFETY
Continued
UNPACKING
CAUTION:Donotremove
dataplatesfrommodule.Data
platescontainimportantwar-
rantyandsafetyinformation.
Note: Unit and all its loose components are
attached to carton tray inside box.
1. Remove entire contents of box using tray
handles (see Figure 1).
2. Set tray on oor and remove oor media
components and remote control.
3. Remove module with log set from tray by
cutting zip ties. Discard tray and foam.
4. Check all items for any shipping damage.
If damaged, promptly inform dealer where
you bought appliance.
Figure 1 - Log Set in Packing Box
Carton Tray
with Handles

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122280-01D 5
INTRODUCTION
Models BBM-36(N,P)-TKA, BBM-42(N,P)-
TKA and BBM-50(N,P)-TKA are vented gas
appliances that use an electronic control valve
and electronic ignition system. A DESA Heat-
ing, LLC venting system and vent cap are not
supplied but are required for proper operation
If a B-type venting system is installed, transi-
tion pipe model BTC-B is required. See vent-
ing instructions beginning on page 12.
WARNING: This gas appli-
ancemustnotbeconnectedto
achimneyueservicingasolid
fuelburningappliance.
BEFORE YOU BEGIN
Before beginning the installation of your
appliance, read these instructions through
completely.
This DESA Heating, LLC appliance and its
approved components are safe when installed
according to this installation manual and are
operated as recommended by DESA Heating,
LLC. Unless you use DESA Heating, LLC ap-
proved components tested for this appliance,
YOUMAYCAUSEAFIREHAZARD!
The DESA Heating, LLC warranty will be
voided by and DESA Heating, LLC disclaims
any responsibility for the following actions:
A) Modication of the appliance or any of the
components.
B) Use of any component part not approved
by DESA Heating, LLC in combination
with this appliance.
C) Installation and/or operation in a manner
other than instructed in this manual.
D) The burning of anything other than the
type of gas approved for use in this gas
appliance.
The installation must conform with local
codes or, in the absence of local codes, with
the current National Fuel Gas Code, ANSI
Z223.1/NFPA 54.
WARNING: Installation of this
appliance should be done by a
qualiedserviceperson.
NOTICE: This appliance is not
intendedtobeusedasaprimary
source of heat.
CAUTION: Do not connect
appliancebeforepressuretest-
inggaspiping.Damagetogas
valvemayresultandanunsafe
conditionmaybecaused.
The appliance and it’s individual shutoff valve
must be disconnected from the gas supply
piping system during any pressure testing of
that system at test pressures in excess of 1/2
psig (3.5 kPa).
The appliance must be isolated from the gas
supply piping system by closing its individual
manual shutoff valve during any pressure
testing of the gas supply piping system at
test pressures equal to or less than 1/2 psig
(3.5 kPa).
For the purpose of input adjustment two
pressure taps (for IN and OUT pressures)
are provided on the gas control valve for test
gauge connections to the appliance.

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SPECIFICATIONS
GAS RATING - NATURAL
BBM-36N-TKA BBM-42N-TKA BBM-50N-TKA
Max. Input Rating: 52,000 Btu/Hr 56,000 Btu/Hr 60,000 Btu/Hr
Manifold Pressure: 3.5" WC (.87 kPa) 3.5" WC (.87 kPa) 3.5" WC (.87 kPa)
Min. Supply Pressure: 4.5" WC (1.12 kPa) 5.0" WC (1.24 kPa) 5.0" WC (1.24 kPa)
Max. Supply Pressure: 10.5" WC (2.66 kPa) 10.5" WC (2.66 kPa) 10.5" WC (2.66 kPa)
Orice Size: # 26 # 23 # 18
GAS RATING - PROPANE/LP
BBM-36P-TKA BBM-42P-TKA BBM-50P-TKA
Max. Input Rating: 46,000 Btu/Hr 52,000 Btu/Hr 57,000 Btu/Hr
Manifold Pressure: 10" WC (2.49 kPa) 10" WC (2.49 kPa) 10" WC (2.49 kPa)
Min. Supply Pressure: 11" WC (2.74 kPa) 11" WC (2.74 kPa) 11" WC (2.74 kPa)
Max. Supply Pressure: 13" WC (3.23 kPa) 13" WC (3.23 kPa) 13" WC (3.23 kPa)
Orice Size: # 46 # 44 # 43
*For the purpose of input adjustment.
Figure 2 - Possible Locations for
Installing Appliance
INTERNAL WALL
INSTALLATION
CORNER
INSTALLATION
FULL
PROJECTION
INSTALLATION
FLUSH
INSTALLATION
SELECTING LOCATION
To determine the safest and most efcient
location for your appliance, you must take into
consideration the following guidelines:
1. The location must allow for proper clear-
ances (see clearance information on
page 10).
2. Consider a location where heat output
would not be affected by drafts, air con-
ditioning ducts, windows or doors.
3. A location that avoids the cutting of joists
or roof rafters will make installation easier.
Figure 1 shows a plan view of a few com-
mon locations.
Flush installations are recommended where
living space is limited or at a premium and
since the space required to enclose the ap-
pliance would be located beyond an outside
wall, this would also reduce the cutting of
joists, roof rafters and such. Check local
codes for any restrictions.
Projected installations can extend any
distance into the room. A projection may
be ideal for a new addition on an existing,
nished wall.
Corner installations make use of space
that may not normally be used and provides
a wider and more efcient range for radiant
heat transference.
Internalwallinstallations provide a discreet
option for room separation and can also be
ideal as an addition to an existing wall.

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122280-01D 7
29"
14 1/2"
22 1/2"
26 5/8"
4 1/2"
15 5/8"
4 1/2"
1"
58"
7 1/4"
11 "
15 1/4"
3 1/2"
9 1/2"
10 1/2"
67"
61"
49"
11 "
7"
30"
1" 45 1/8"
36"
OUTSIDE AIR
ACCESS
GAS LINE
ACCESS
36" HEARTH
1 5/16"
19 13/16"
(Ref.)
35 3/8"
22"
18 3/8"
Figure 3 - 36" Model BVC-36Y
PRODUCT DIMENSIONS

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PRODUCT DIMENSIONS Continued
22 3/4"
30 1/2"
29"
4 3/8"
15 3/4"
5/8"
17 5/8"
67"
61"
49"
7"
1"
30"
11 "
58"
42"
51 1/8"
4 1/2"
3 1/2"
9 1/2"
10 1/2"
81/2"
13"
17"
OUTSIDE
AIR
ACCESS
GAS LINE
ACCESS
23 13/16"
(Ref.)
1 5/16"
41 3/8"
25"
22 1/2"
42" HEARTH
Figure 4 - 42" Model BVC-42Y

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122280-01D 9
PRODUCT DIMENSIONS Continued
38 1/2"
28 1/2"
43/8"
17 5/8"
19 1/4"
24"
49"
30"
11 "
61"
67" 58"
7"
1"
59"
50" 4 1/2"
3 1/2"
9 1/2"
10 1/2"
8 1/2"
13"
17"
GAS LINE
ACCESS
OUTSIDE
AIR
ACCESS
23 13/16"
(Ref.)
1 5/16"
33"
49 3/8"
221/2"
50" HEARTH
Figure 5 - 50" Model BVC-50Y

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Figure 6 - Rough Opening Dimensions
for Installing in a Wall
59 1/4" (50")
58 1/8"
30 1/8"
(42", 50")
28 1/4" (36")
67 1/8"
51 1/4" (42")
45 1/4" (36")
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
clearances (see Figures 6 and 7).
2. Consider a location where replace will
not be affected by drafts, air conditioning
ducts, windows or doors.
3. A location that avoids 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,
page 11).
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 12" min.
Top spacers 0" min.
Mantel clearances see Mantels, page 11
Chimney outer pipe surface 1" min.
* Not required at nailing anges
** See step 2 of Framing
WARNING:Donotpackre-
quiredairspaceswithinsulation
orothermaterials.
FRAMING
1. Frame opening for replace using dimen-
sions shown in Figures 6 and 7.
2. If replace is to be installed directly on
carpeting, tile (other than ceramic) or any
combustible material other than wood
ooring, replace must be installed upon
a metal or wood panel extending full width
and depth of replace.
3. Set replace directly in front of this open-
ing and slide unit back until nailing anges
touch side framing.
4. Check level of the 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
PREINSTALLATION PREPARATION
71" (50" Models)
100" (50" Models)
65" (42" Models)
92" (42" Models)
86.5" (36" Models)
61" (36" Models)
Maintain 1 1/2"
Clearance
at Sides and
Back of Fireplace
1 1/2" Clearance
Not Required at
Nailing Flanges
Figure 7 - Corner Installation
fabricated to t your required platform
height. Ember protector should extend
under replace a minimum of 1 1/2". Ember
protector should be made of galvanized
sheet metal (28 gauge minimum to pre-
vent corrosion.

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122280-01D 11
PREINSTALLATION PREPARATION
Continued
6. Using screws or nails, secure replace to
framing through anges located on sides
of replace.
 WARNING: When nishing
appliance,donotoverlapcom-
bustiblematerialontotheblack
front face. Brick, tile or other
noncombustiblematerialsmay
beappliedtothefaceprovided
that any gap is between the
material used and the face is
caulkedwithanoncombustible
caulking.
OPTIONAL OUTSIDE AIR KIT
(MODEL AK4/AK4F)
Installation of an outside air kit should be
performed during rough framing of replace
due to the nature of it's location. Outside com-
bustion air is accessed through a vented crawl
space (AK4F) or through a sidewall (AK4).
See Figure 39 on page 32 for instruction of
operating air kit.
 CAUTION: Combustion air
inlet ducts shall not terminate
in attic space.
3" (7.6 cm)
1
1
/
2
"
(3.8 cm) Max.
8"
6" (15.2 cm)
14"
12"
(22.9 cm)
Combustible
Materials
30°
Figure 9 - Mantel Clearances - Side View
(Cross Section)
Figure 8 - 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)
The maximum height for the
air vent can not exceed 3 feet
belowtheuegasoutletofthe
termination.
MANTELS
A combustible mantle shelf maybe installed
a maximum 12" (22.9 cm) from the wall.
Figure 9 and Figure 10 on page 12 show
the minimum allowable distances from
various combustible mantle components
in relation to the fireplace opening.

www.desatech.com 122280-01D12
VENTING INSTALLATION
A DESA Heating, LLC or an 8" B-type venting
system must be connected to appliance for
venting to the outside of building. Transition
pipe model BTC-8 is required for use with
B-type venting.
Standing codes requirements concerning
vent installations may vary within your state,
province or local codes jurisdiction. Therefore,
it is recommended that you check with your
local building codes for specic requirements
or in absence of local codes, follow Section
7.0 of the current National Fuel Gas Code
ANSI Z223.1/NFPA 54.
This gas appliance must be vented to the
outdoors only and may not be terminated into
an attic space or into a chimney ue servicing
a solid-fuel burning appliance.
Vent terminations must be located in ac-
cordance with height and proximity rules of
NFPA No. 54. These rules apply to vents at
12" diameter or less and require a minimum
height in accordance with the roof pitch and a
minimum of 8 ft. distance from a vertical wall
or obstruction (see Figure 11).
WARNING: This appliance
must be properly connected
to a system and must not be
connected to a chimney ue
servicing a separate solid fuel
burningappliance.
Lowest
Discharge
Opening
Listed
Ve nt Cap
8 Ft. Min.
Roof Pitch x/12
Listed Clearance
12
x
Listed
Gas
Ve nt
H (Min)
Height
From Roof
Figure 11 - Typical Terminations
Roof Pitch
H (Min.)
Feet Meter
Flat to 6/12 1.0 0.30
6/12 to 7/12 1.25 0.38
Over 7/12 to 8/12 1.5 0.46
Over 8/12 to 9/12 2.0 0.61
Over 9/12 to 10/12 2.5 0.76
Over 10/12 to 11/12 3.25 0.99
Over 11/12 to 12/12 4.0 1.22
Over 12/12 to 14/12 5.0 1.52
Over 14/12 to 16/12 6.0 1.83
Over 16/12 to 18/12 7.0 2.13
Over 18/12 to 20/12 7.5 2.27
Over 20/12 to 21/12 8.0 2.44
1
1
/
2
"
(3.8 cm)
Max. 3" (7.6 cm)
Max.
6" (15.2 cm)
Max. 9"
(22.9 cm)
12"
(30.5 cm)
Outer
Surround
Combustible
Material May
Be Used
TOP VIEW
SAFE
ZONE
Perpendicular
Wall
33°
Figure 10 - Side Clearances - Top View (Cross Section)
PREINSTALLATION PREPARATION
Continued

www.desatech.com
122280-01D 13
Figure 12 - Typical Residential Installations
VENTING INSTALLATION
Continued
VENTING INSTALLATION USING
DESAHEATING,LLCVENTING
SYSTEM
DESA Heating, LLC chimney system consists
of 12", 18", 24", 36" and 48" snap-lock, dou-
ble-wall pipe segments, planned for maximum
adaptability to individual site requirements.
WARNING: The opening in
collararoundchimneyattopof
replacemustnotbeobstructed.
Neveruseblowninsulationtoll
chimneyenclosure.
Figure 13 - Chimney Pipes and Accessories
Hemmed
End
8" Stainless
Inner Pipe
12 3/8"
Galvanized
Outer Pipe
PART NO. DESCRIPTION
12-8DM Pipe Section
18-8DM Pipe Section
24-8DM Pipe Section
36-8DM Pipe Section
48-8DM Pipe Section
RT-8DM Round Termination
RTL-8DM Round Termination
RTT-8DM Round Termination with Slip
Section
RTTL-8DM Round Termination with Slip
Section
ET-8DM Square Chase-Top
ETO-8DM Square Chase-Top with Mesh
ETL-8DM Square Chase-Top with Slip
Section
ETLO-8DM Square Chase-Top with Mesh &
Slip Section
60E-8DM 60° Offset and Return
EFFECTIVE HEIGHT
OF TERMINATION CAP
UP TO
6 FT. MAX.
17 FT.
MINIMUM
HEIGHT
3 FT. MINIMUM
TO OFFSET
12 FT.
MINIMUM
HEIGHT

www.desatech.com 122280-01D14
VENTING INSTALLATION
Continued
ASSEMBLY AND INSTALLATION OF
DOUBLE WALL CHIMNEY SYSTEM
Each double wall chimney section consists of
a galvanized outer pipe, a stainless steel in-
ner ue pipe and a wire spacer. Pipe sections
must be assembled independently as 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 hem on replace starter. The wire
will assure proper spacing between inner and
outer pipe sections.
Opening in collar around
chimneyattopofreplacemust
not be obstructed. Never use
blowninsulationtollchimney
enclosure.
Continue to assemble chimney sections as
outlined, making sure that both inner and outer
pipe sections are locked together. When install-
ing double wall snap-lock chimney together, it
is important to assure 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.
FIRESTOP SPACERS (V3600FS-8DM)
Firestop spacers are required at each point
where chimney penetrates a floor space.
Their purpose is to establish and maintain
required clearance between chimney and
combustible materials. When pipe passes
through a framed opening into a living space
above, restop must be placed onto ceiling
from below as shown in Figure 14.
Figure 14 - Firestop Spacer with Living
Space Above Ceiling
Figure 15 - Firestop Spacer with Attic
Space Above Ceiling
If area above is a living space, install
restop below framed hole.
If area above is an attic or insulated area,
install restop above framed hole.
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 15.

www.desatech.com
122280-01D 15
VENTING INSTALLATION
Continued
Pitch Slope Opening
"A"Max.
Used Flashing
Model No.
Flat 0° 15" V6F-8DM
0-6/12 26.6° 16 1/8" V6F-8DM
6/12- 12/12 45.0° 20 3/8" V12F-8DM
FLASHING INSTALLATION (V6F-8DM
OR V12F-8DM)
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 17). DO NOT NAIL
THROUGH FLASHING CONE.
Figure 16 - Roof Opening Measurements
PENETRATING ROOF
To maintain a 1" clearance to pipe on a roof
with a pitch, a rectangular opening must
be cut.
1. Determine center point where 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" measure
horizontally down from roof rafters.
3. Use roof opening chart (Figure 16) to
determine correct opening length and
ashing required.
4. Remove shingles around opening mea-
sured. Cut out this section.
14
3
/
8
"
(36.5 cm)
30"
(76.2 cm)
1"
(2.5
cm)
1"
(2.5
cm)
Minimum Measurements
1"
(2.5 cm)
Opening "A"
Nail Only
Outer
Perimeter
of Flashing
Storm Collar
Flashing
Cone
Underlap Shingles
at Bottom
Overlap
Shingles Top
and Sides Only
Figure 17 - 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 ap-
plied around perimeter of ashing to provide
a proper seal.
StormCollarInstallation(SC1orSC2)
Place storm collar over pipe and slide down
until it is snug against open edge of ashing
(see Figure 18). Use SC1 for all round ter-
minations and SC2 for all terminations with
slip sections. Apply waterproof caulk around
perimeter of collar to provide a proper seal.
Figure 18 - Storm Collar
Chimney
Pipe
Waterproof
Caulk
Storm
Collar Flashing

www.desatech.com 122280-01D16
Terminations/SparkArrestor
Fireplace system must be terminated with
listed round top or chase terminations. In any
case, refer to installation instructions supplied
with termination. Terminations approved for
this replace are RT-8DM and RTL-8DM that
can be used for ashing or chase and ET-
8DM, ETO-8DM, ETL-8DM and ETLO-8DM
for chase style termination only. Figure 19
shows an RTL-8DM round top termination.
CAUTION: Do not seal open-
ingsontherooftopashing.Fol-
lowtheinstallationinstructions
provided with the termination
beingused.
Terminations with 16" slip pipe sections are
available. RTT-8DM and RTTL-8DM are
approved for flashing installations. When
needed, these adjustable terminations may
be used in combination with pipe assembly
to achieve correct chimney height.
Note: In rare instance there is a problem with
side driven rain or wind or chimney is not draft-
ing properly, an ADS-8DM (Anti-Draft Shield)
can be used with round terminations.
VENTING INSTALLATION
Continued
Attach Bracket
Tabs to
Outer Pipe
(3 Places)
Secure with
Screws
RTL-8D
Level of
Flue Gas
Outlet
Caulk
Collar
Flashing
Underlap Shingles
Bottom Only
Figure 19 - Termination
Overlap
Shingles Top
and Sides
VENTING INSTALLATION USING 8"
B-TYPE VENTING SYSTEM
Transition pipe model BTC-8 and starter collar
are shown in Figure 20. Remove starter collar
and set aside. Slide transition pipe over vent
collar and attach with a minimum of 4 screws.
Replace starter collar over transition pipe and
attach using 4 screws located on leg stands.
To install b-vent piping, slide rst piece of
b-vent over transition pipe and attach with
either a minimum of 3 screws or other means
approved by the vent manufacturer.
B-Vent Piping
Transition Pipe
Model BTC-8
Starter Collar
Vent Collar
Figure 20 - Installing Transition Pipe and
Starter Collar
CHECKING FOR PROPER VENTING
After completing and checking electrical, gas
and vent connections, follow the lighting in-
structions and allow the main burner to run for
approximately 5 minutes. Hold a lighted match
near the top edge of replace opening and play
it along entire length of opening (see Figure 21,
page 17). Proper venting should tend to draw
the ame or smoke into the appliance. Improper
venting or escaping of spillage of burned gas, is
indicated when the match ickers or goes out.
If the appliance is found to be improperly
venting, shut it off and notify your installer
or a qualied service agency to inspect the
venting system.
NOTICE: This appliance is
equipped with a vent safety
shutoff switch which will shut
downtheapplianceinthecaseof
aventingproblem.Donotbypass
theventsafetyswitch.Iftheappli-
anceshouldshutdown,contacta
qualiedinstaller,serviceagency
or your gas supplier to have the
ventinspectedbeforeoperating.

www.desatech.com
122280-01D 17
Check this area
along entire top
edge of replace
opening. Smoke
or ame should
be drawn into
appliance
opening.
Figure 21 - Checking for Spillage
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 the 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 such
as louvered slots. When overlapping with
a noncombustible facing material, use only
noncombustible mortar or adhesive.
INSTALLATION
GAS LINE HOOK-UP
WARNING:A qualiedser-
vicepersonmustconnectheater
to gas supply. Follow all local
codes.
WARNING:Gaslinehookup
should be done by your gas
supplier or a qualied service
person.
WARNING: Before you pro-
ceed,makesureyourgassupply
is OFF.
A manual shutoff valve has been included in
the appliance’s gas supply system. You may
consider installing an extra gas shutoff valve
outside appliance’s enclosure (check with
local codes) where it can be accessed more
conveniently with a key through a wall as
shown in Figure 21.
In conformance with local codes, route a 1/2"
NPT gas line to appliance through hole in left
or right side of rebox.
Figure 22 - Manual Shutoff Valve
Installation
Typical Exterior Wall Gas
Shutoff Installation
Key
Extension
Shutoff
Valve
CAUTION:Donotkinkex-
iblegasline.
DESA Heating, LLC recommends that a black
iron gas line be routed from the gas source,
through a sediment trap (shown in Figure 24,
page 18) and into appliance. Once connected
through appliance, a exible gas line may be
used for ease of installation to gas control
valve (see Figure 25, page 18).
Before connecting black iron gas line to inside
of appliance a sediment trap must be included
outside appliance between gas line and gas
shutoff valve. It must extend down 3" beyond
center of pipe. Prepare incoming black iron
gas line with teon tape or pipe joint com-
pound (Check with local building codes).

www.desatech.com 122280-01D18
IN
PILOT
IN
OUT
VENT
TH
TP
TH TP
INSTALLATION
Continued
Figure 25 - Connecting Incoming Gas Line to Flex Gas Line
Gas Shutoff
Valve
Flexible Gas Line
Do NOT Kink
1/2" NPT
Incoming
Gas Line
Note:
1) Wire connections not
shown for clarity
2) * 1/8" NPT Plugged
Tapping
Red Surface Indicates For
Propane/LP Use Only Pilot
Adjustment
Inlet Pressure Tap
Outlet
Pressure Tap
3" Min.
(7.6 cm)
Side Wall
Of Appliance
Incoming
1/2" Gas Line
Permitted by
Local Codes
Sediment Trap
(Not Supplied)
Figure 24 - Sediment Trap
Figure 23 - Installing Gas Line
Gas Line
Opening
Equipment
Shutoff Valve Valve on
Module
CAUTION:Compoundsused
onthreadedjointsofgaspiping
shallberesistanttotheaction
of Liqueed Petroleum (LP or
propane)andshouldbeapplied
lightlytoensureexcesssealant
does not enter the gas line.
WARNING: All gas piping
andconnectionsmustbetested
forleaksaftertheinstallationis
completed.
After ensuring that gas valve
ison,applyacommercialleak
detection solution to all con-
nectionsandjoints.Ifbubbles
appear, leaks can be detected
and corrected.
Donotuseanopenameforleak
testing and do not operate any
applianceifaleakisdetected.
Complete your gas installation by connect-
ing incoming gas line with exible gas line.
Secure tightly with wrench but DO NOT
OVERTIGHTEN.

www.desatech.com
122280-01D 19
REMOVING AND INSTALLING
SMOKE SHELF
IMPORTANT:Smokeshelfmust
beremovedbeforeinstallingand
groutingbricks.
1. Remove screws that attach smoke shelf
to rebox top (see Figure 26).
2. Disconnect wires from limit switch.
3. When bricks have been installed and grout
has dried completely, connect wires to
limit switch and reinstall smoke shelf.
Figure 26 - Removing Smoke Shelf
Limit
Switch
Screws
Smoke
Shelf
INSTALLATION
Continued
Figure 27 - Hole in Side Panel to Attach
to Firebox Wrapper
Hole in
Side Panel
Figure 28 - Installing Bricks into Housings
BRICK INSTALLATION
Each brick housing is stamped with a number
(full size bricks are not stamped). These num-
bers will help identify the brick when installing.
It is important to install these bricks exactly
as instructed. Press brick rmly into brick
housing until it snaps. Groove line on side
of brick will come in contact with ange on
brick housing. This secures brick into housing
(see Figure 28). Smaller bricks may require
a small portion of furnace cement applied to
back of brick to secure it until grouting has
been completed.
Bricks are packaged in separate boxes. Brick
matrixes on pages 20 through 26 show how
bricks are packaged and placed for each size
replace and number of bricks per box. There
are 2 extra full bricks included in Hearth Brick
package.
Install bricks one section at a time starting with
hearth panel followed by the rear panel, left
panel and right panel. It is important to install
the bricks in sequence. Please note, full size
bricks are NOT stamped.
BRICK PANEL INSTALLATION
IMPORTANT:Installationofbrick
should be done after the re-
placeisplacedinapermanent
location.
The brick housings are already installed on
the panels. When installing brick housing
panels into replace, wear gloves as edges
may be sharp.
1. Beginning with left side panel, place
panel, bottom edge rst, at an angle into
replace. Secure to bottom of replace
with screws provided.
2. Install right side as left side in step 1 using
screws provided.
3. Install back panel and secure back to
sides and bottom of rebox with screws
provided.
4. Using self-tapping screws and a drill, place
screws into large holes in back and side
panels (see Parts, page 38), through wire
mesh and into rebox wrapper to secure.

www.desatech.com 122280-01D20
INSTALLATION
Continued
RED IVORY QTY
FULL
(112140-01)
FULL
(112140-05) 4*
ASH BRICK
(120848-01)
ASH BRICK
(120848-02) 1
F012R F012W 2
F036R F036W 2
F079R F079W 2
F104R F104W 2
F128R F128W 2
F140R F140W 2
S109R S109W 2
* Includes 2 extra bricks.
120848-01
FULL FULL F140
F140
F013 F013
F036
F079 F079
F036
F078F078
F141 F141F011
F132 F132
F059 F059 F059 F059
RED IVORY QTY
FULL
(112140-01)
FULL
(112140-05) 4*
ASH BRICK
(120848-01)
ASH BRICK
(120848-02) 1
F011R F011W 1
F013R F013W 2
F036R F036W 2
F059R F059W 4
F078R F078W 2
F079R F079W 2
F132R F132W 2
F140R F140W 2
F141R F141W 2
* Includes 2 extra bricks.
RED IVORY QTY
FULL
(112140-01)
FULL
(112140-05) 10*
ASH BRICK
(120848-01)
ASH BRICK
(120848-02) 1
F011R F011W 3
F012R F012W 2
F024R F024W 2
F036R F036W 2
F059R F059W 2
F104R F104W 2
F134R F134W 2
F140R F140W 2
F142R F142W 2
* Includes 2 extra bricks.
120848-01
FULLFULL FULL
FULL
FULL FULL
FULL
FULL
F024
F036
F140 F140
F104 F104
F036
F142 F142
F011F011 F011
F134 F134F059 F012 F012 F059 F024
120848-01
FULL
F104 F104
F128F128 F012 F012
FULL
F140F140
F036
S109
F079 F079
F036
S109