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"

32.5"

14.25"

22"

2.5"

8.717"

11 .217"

2.5" 8.125"

7.092"

8.717"

12.5"

41"

0.625"

29"

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

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.

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

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





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"

12 3/4"30 3/4"

15" 34 3/4"

18" 40"

1 1

21 1/4"46 1/4"

23 3/4"49 1/4"

1 1

27 3/4" 56 3/4"

30" 60 3/4"

1 1

33" 66"

1 1

36" 71"

1 1

38 1/4" 75"

41 1/4" 80 1/4"

1 1 1

45" 86 3/4"

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"

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"

OFFSET CHART (22-50 FT. SYSTEM HEIGHT)

Figure 7 - Typical Offset Terminations

Return

Elbow

Offset

Elbow

Return

Elbow

Offset

Elbow

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

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

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.

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

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