Desa S36 Series Quick start guide

For more information, visit www.desatech.com
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.


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. A DESA hood must be installed when using a
vent-free log heater (see Accessories, page 16).
      
     



etc.) should be contacted before installation to deter-
mine the need to obtain a permit.


RESIDENTIAL AND OUTDOOR WOOD BURNING FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
MODELS (V)S36 SERIES
ICC-ES #ESR-2542

www.desatech.com 111026-01F2
SAFETY


the manufacturer's instructions


use with this insert.

 

or liquids in the vicinity of this
or any other appliance.
 
appliance should be located
     
furniture and draperies.
 

the appliance.
    -


    

only. When processed wood fuel

stir the logs while they are burn-

beenevaluatedfortheapplication
  
warnings and caution markings
on packaging prior to use.

used as a substitute for a furnace
 
supplemental heat only.
 
 
alteration, service or
maintenance can cause
  
or loss of life. Refer to this
manual for assistance or
additional information.
-
er or local distributor.
   

Before beginning installation of this replace,
read these instructions through completely.
• This DESA Heating, LLC replace and its
components are safe when installed ac-
cording to this installation manual. Unless
you use DESA Heating, 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 DESA Heating, LLC dis-
claims any responsibility for the following
actions.
a. Modification of the fireplace, com-
ponents, doors, air inlet system and
damper control.
b. Use of any component part not manu-
factured or approved by DESA Heating,
LLC in combination with a DESA Heat-
ing, LLC replace system.
Proper installation is the most important step
in ensuring safe and continuous operation of
replace. Consult the local building codes as
to the particular requirements concerned with
the installation of all factory built replaces.
TABLE OF CONTENTS
Safety .................................................................. 2
Specications ...................................................... 3
Fireplace Installation............................................ 4
Venting Installation .............................................. 6
Optional Gas Line Installation.............................11
Operation and Maintenance Guidelines ............ 12
Parts .................................................................. 14
Technical Service............................................... 16
Replacement Parts ............................................ 16
Accessories ....................................................... 16

www.desatech.com
111026-01F 3
SPECIFICATIONS
0" TO
BOTTOM
(LEFT SIDE ONLY)
OUTSIDE AIR
TOP SPACERS
BACK AND SIDES
3/4" AIR SPACE
HEARTH EXTENSION
66" X 20"
TO PERPENDICULAR
12"
EACH SIDE
NOT LESS
THAN 12"
1" AIRSPACE
TO COMBUSTIBLE
COMBUSTIBLE
WALL BOARD
0" TO MATERIAL
NO COMBUSTIBLE
MATERIAL ON FACE
SIDEWALL
TERMINATION
SQUARE CHASE-TOP
GAS LINE
KNOCK OUT
AIR KIT
KNOCK OUTS
ROUND TOP TERMINATION
GAS LINE
KNOCK OUTS
ELECTRICAL
OUTLET
LEFT SIDE
RIGHT SIDE
8.125"
10.435"
14.437"
41.25"
37"
41"
35"
21"
8"
32.5"
14.25"
22"
2.5"
8.717"
1"
11 .217"
2.5" 8.125"
7.092"
8.717"
12.5"
41"
1"
0.625"
29"
21

www.desatech.com 111026-01F4
FIREPLACE INSTALLATION

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).


Back and sides of replace 3/4" minimum*
Floor** 0" minimum
Perpendicular wall to opening 12" minimum
Top spacers 0" minimum
Mantel clearances see Mantels, page 5
Chimney outer pipe surface 1" minimum
* Not required at nailing anges
** See step 2 of Framing
-
quired air spaces with insulation
or other materials.

Residential Installation
The minimum height of the chimney, mea-
sured from the base of the replace to the ue
gas outlet of the termination, is 14.5 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 18, page 11).

Outdoor Installation
The minimum height of the chimney, mea-
sured from the base of the replace to the
ue gas outlet of the termination, is 7 1/2feet
(minimum of 4 feet of chimney pipe sections
required for outdoor installation).

1. Frame opening for fireplace using the
dimensions shown in Figures 1 and 2.
2. If replace is to be installed directly on
carpeting, tile (other than ceramic) or any
combustible material other than wood
ooring, the replace must be installed
upon a metal or wood panel extending
the 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 the level of the replace and shim
with sheet metal if necessary.
5. Before securing replace to prepared fram-
ing, the ember protector (provided) must be
placed between the 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 pro-
tector (not supplied) must be fabricated to
t your required platform height. The ember
protector should extend under replace a
minimum of 1 1/2". The ember protector
should be made of galvanized sheet metal
(28 gauge minimum) to prevent corro-
sion.
6. Using screws or nails, secure replace to
framing through anges located on sides
of replace.
21.875"
41.375"
41.250"
Figure 1 - Framing Dimensions
52.183"
17.253"
24.399"
73.798"
MAINTAIN 3/4"
CLEARANCE A T
SIDES AND BACK
OF FIREPLACE
3/4" CLEARANCE
NOT REQUIRED A T
NAILING FLANGES
Figure 2 - Corner Installation

www.desatech.com
111026-01F 5
DRAIN PAN (DP36)
For outdoor installations, the replace enclo-
sure must allow for adequate drainage and
fresh air ventilation. It is recommended that
a sealed, corrosion resistant catch pan with
provision for drainage be installed under the
replace within the replace enclosure (see
Accessories on page 16).
HEARTH ExTENSION
A hearth extension projecting a minimum of
16" in front of and a minimum of 8" beyond
each side of the replace opening is required
to protect combustible floor construction
in front of the replace. Fabricate a hearth
extension using a material which meets the
following specications: a layer of noncom-
bustible, inorganic material having a thermal
conductivity 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 the hearth ex-
tension is to be covered, use noncombustible
material such as tile, slate, brick, concrete,
metal, glass, marble, stone, etc. Provide a
means to prevent the hearth extension from
shifting and seal gap between the replace
frame and hearth extension with a noncom-
bustible 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

is to be installed only as shown


A mantel may be installed if desired (see
Figure 4). Woodwork such as wood trims,
mantels or any other combustible material
projecting from the front face must not be
placed within 12" of the replace opening.
Combustible materials above 12" and pro-
jecting more than 11/2" from the fireplace
must not be placed less than 15" from the
top opening of the 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 the replace just as long
as the projection from the front face fall within
the limit shown in Figure 4.
12 1/4" Ref.
6"
Ref.
12" Min.
9" 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
FIREBOX
SAFE ZONE
Top View of Fireplace
2" Max.
3.0"
Min. to
Perpendicular
Side Wall
12"
8.0"
33°
Combustible
Material Must
Not Overlap
Front Face

www.desatech.com 111026-01F6
Figure 6 - Lineal Gain

PART NO. DESCRIPTION GAIN
36" Fireplace 40 "
12-8DM
12-8HT Pipe Section 10 5/8
"
18-8DM
18-8HT Pipe Section 16 5/8
"
24-8DM
24-8HT Pipe Section 23 5/8
"
36-8DM
36-8HT Pipe Section 34 5/8
"
48-8DM
48-8HT Pipe Section 46 5/8
"
RT-8DM Round Termination 6 7/8 "
*
RTL-8DM Round Termination 7 3/4 "
*
RTT-8DM Round Termination
with Slip Section
6 7/8 " to
23 1/8"*
RTTL-8DM Round Termination
with Slip Section
8 1/2 " to
21 1/2"*
ET-8DM Square Chase-Top 12 "
*
ETO-8DM Square Chase-Top
with Mesh 12
"
*
ETL-8DM Square Chase-Top
with Slip Section 7" to 15"*
ETLO-8DM
Square Chase-Top
with Mesh & Slip
Section
12 " to
25 1/2" *
* The lineal gain for the terminations is mea-
sured to the ue gas outlet height.
Hemmed
End
8" Stainless
Inner Pipe
12 3/8" Galvanized
Outer Pipe
A 

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.
VENTING INSTALLATION


The installation of an outside air kit should be
performed during the rough framing of the re-
place due to the nature of it's location. Outside
combustion air is accessed through a vented
crawl space (AK4F) or through a sidewall (AK4).
See Figure 22 on page 13 for instruction of
operating air kit.
   
inlet ducts shall not terminate
in attic space.
    
      

termination.
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)

The DESA chimney system consists of 12",
18", 24", 36" and 48" snap-lock, double-wall
pipe segments, planned for maximum adapt-
ability to individual site requirements. Actual
lengths gained after tting overlaps must be
taken into consideration (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".

collar around chimney at top of
-
ed. Never use blown insulation


www.desatech.com
111026-01F 7
VENTING INSTALLATION
Continued
When connecting chimney directly to the replace,
the inner ue pipe section must be installed rst
with the lanced side up. The outer pipe section
can then be installed over the ue pipe section with
the hemmed end up. Press down on each pipe
section until the lances securely engage the hem
on the replace starter. The wire will assure the
proper spacing between the inner and outer pipe
sections. Continue to assemble chimney sections
as outlined, making sure that both the inner and
outer pipe sections are locked together. When
installing double wall snap-lock chimney together,
it is important to assure the joint between the chim-
ney sections is locked. Check by pulling chimney
upward after locking. The chimney will not come
apart if properly locked. It is not necessary to add
screws to keep the chimney together (exception -
see Figure 9, page 8).

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).
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 on page 8).
3. Maximum length of pipe between supports
(return elbow or 12S-8DM) 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 outer pipe only (see Figure 9, page 8).
Do not penetrate inner stainless.
 RISE 
A B 48" 36" 24" 18" 12"
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 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 1
56 1/4"106 1/4" 2
59 1/4"111 1/2" 1 1 1
61 3/4" 115 1/2" 2 1
64 3/4"120 3/4" 2 1
68 1/4" 127" 1 2
70" 130" 2 1 1
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
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-8DM
Return
Elbow

www.desatech.com 111026-01F8
VENTING INSTALLATION
Continued
Figure 9 - Elbow Offset
B
A
Screws

Firestop spacers are required at each point
where the chimney penetrates a oor space.
Their purpose is to establish and maintain
the required clearance between the chimney
and the combustible materials. When the 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 the double wall
pipe passes through a framed opening into an
attic space, the 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)

To maintain a 1" 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 the roof rafters.
3. Use roof opening chart (Figure 12, page
9) to determine the correct opening length
and ashing required.
4. Remove the shingles around opening
measured. Cut out this section.
5. Add next sections of pipe until end pen-
etrates roof line. Check to see that the
proper clearances are maintained. Extend
chimney by adding sections of double wall
pipe until pipe is minimum of 30" above the
highest point of the roof cutout. Termination
and chimney must extend a minimum of
36" above the highest point where it passes
through the roof.
Existing
Ceiling
Frame
Figure 8 - Ceiling Support Pipe
12S-8DM
2" Min.
Straps
Straps
Straps
Straps
Detail A
Return Elbow
Detail B
Angle Firestop
See Detail A
See Detail B

www.desatech.com
111026-01F 9
VENTING INSTALLATION
Continued
14 3/8" Min.
(365 mm) 30" Min.
(762 mm)
1" Min.
(25 mm)
1" Min.
(25 mm)
1" Min.
(25 mm)
Opening "A"
Pitch Slope Opening "A"



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


Determine the ashing to be used with the roof
opening 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 nail-
ing through shingles (see Figure 13). DO NOT
NAIL THROUGH FLASHING CONE.

When installing ashing on a metal roof, it is
required that putty tape be used between the
ashing and roof. The ashing must be secured
to the 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 perimeter of ashing to provide
a proper seal.
Figure 12 - Roof Opening Measurements
Nail Only
Outer
Perimeter
of Flashing
Storm Collar
Flashing
Cone
Underlap Shingles
at Bottom
Overlap
Shingles Top
and Sides Only
Figure 13 - Flashing Installation
Storm Collar Installation (SC1 or SC2)
Place storm collar over pipe and slide down
until it is snug against the open edge of the
ashing (see Figure 14). Use SC1 for all round
terminations and SC2 for all terminations with
slip sections. Apply waterproof caulk around the
perimeter of the 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 the installation instructions
supplied with the termination. The termination
approved for this replace are the 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 15
shows an RTL-8DM round top termination.
-
-
low the installation instructions
provided with the termination
being used.
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 15 - Termination
Overlap
Shingles Top
and Sides

www.desatech.com 111026-01F10
Terminations with 16" slip pipe sections are
available. The RTT-8DM and RTTL-8DM are
approved for flashing installations. When
needed, these adjustable terminations may be
used in combination with the pipe assembly to
achieve the correct chimney height.
Note: In the rare instance there is a problem
with the side driven rain or wind or the chim-
ney is not drafting properly, an ADS-8DM
(Anti-Draft Shield) can be used with round
terminations.

Instructions for chase installations are
included with the chase style termination
chosen. In a multiple chase installation, be
sure to provide adequate distance between
terminations to prevent smoke spillage from
one termination to another. We suggest that
terminations be separated at least 24", center
to center and stacked at a vertical height dif-
ference of 18" (see Figure 16).
Note: If a decorative shroud is to be installed,
contact the manufacturer for specications.

All ue gas outlet chimney terminations must
extend a minimum of 3 feet in height above the
highest point where it passes through the roof
and must be at least 2 feet above the high-
est point of the roof that is within a horizontal
distance of 10 feet (see Figure 17).
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

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 the face
itself. Brick, glass, tile or other noncombustible
materials may overlap the 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.
VENTING INSTALLATION
Continued