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117541-01B

6

FiReplace inStallatiOn

SELECTING LOCATION

To determine the safest and most efficient location 

for the fireplace, you must take into consideration 

the following guidelines:

1.  The location must allow for proper clearances 

(see Figures 1 and 2).

2.  Consider a location where the fireplace will 

not be affected by drafts, air conditioning 

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 fireplace 

(see 

Optional Outside Air Kit

 on page 8).

MINIMUM CLEARANCE TO 
COMBUSTIBLES

Back and sides of fireplace  1 

1

/

2

" min.*

Front of fireplace 

48" min.

Floor** 

0" min.

Perpendicular wall to opening  18" min.

     Model JM36 

12" min.

Top spacers 

0" min.

Mantel clearances 

see 

Mantels

, page 7

Chimney outer pipe surface  2" min.

     Model JM36 

1" min. 

* Not required at nailing flanges

** See step 2 of 

Framing

 WARNING: Do not pack re

-

quired air spaces with insulation 

or other materials.

Minimum/Maximum Chimney Height for 

Residential Installation

The minimum height of the chimney, measured 

from the base of the fireplace to the flue gas outlet 

of the termination, is 16 feet for straight flue or a 

flue 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 fireplace, chimney sec

-

tions and the height of the termination assembly 

at the level of the flue gas outlet (see Figure 15, 

page 11).

Minimum/Maximum Chimney Height for 

Outdoor Installation

The minimum height of the chimney, measured 

from the base of the fireplace to the flue gas outlet 

of the termination, is 9.5 feet (minimum of 4 feet 

of chimney pipe sections required for outdoor 

installation).

FRAMING

1.  Frame the opening for the fireplace using the 

dimensions shown in Figures 1 and 2.

2.  If the fireplace is to be installed directly on 

carpeting, tile (other than ceramic) or any 

combustible material other than wood floor

-

ing, the fireplace must be installed upon a 

metal or wood panel extending the full width 

and depth of the fireplace.

3.  Set the fireplace directly in front of this open

-

ing and slide the unit back until the nailing 

flanges touch the side framing.

4.  Check the level of the fireplace and shim with 

sheet metal if necessary.

5.  Before securing fireplace to prepared framing, 

the ember protector (provided) must be placed 

between the hearth extension (not supplied) 

and under the bottom front edge of the fire

-

place to protect against glowing embers falling 

through. If the fireplace is to be installed on 

a raised platform, a Z-type ember protector 

(not supplied) must be fabricated to fit your 

required platform height. The ember protector 

should extend under the fireplace a minimum 

of 1 

1

/

2

". The ember protector should be made 

of galvanized sheet metal (28 gauge minimum 

to prevent corrosion.

6.  Using screws or nails, secure the fireplace to 

the framing through flanges located on the 

sides of the fireplace.

30.125"

59" (50" Models)

58.125"

67.125"

51.25" (42" Models)

45.25" (36" Models)

28.250" (36" Models)

Figure 1 - Framing Dimensions

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

/

2

" Clearance

Not Required at 

Nailing Flanges 

Figure 2 - Corner Installation

Summary of Contents for JM36 Series

Page 1: ...for use with a vented gas log approved to ANS Z21 60 Z21 84 or RGA 2 72 standards or for use with a vent free gas log heater approved toANS Z21 11 2 standard This wood burning fireplace complies with...

Page 2: ...e of any component part not manufac tured or approved by DESAin combination with a DESA fireplace system Proper installation is the most important step in ensuring safe and continuous operation of the...

Page 3: ...2 AIR SPACE BACK AND SIDES 0 TO BOTTOM GAS LINE KNOCKOUTS 12 EACH SIDE COMBUSTIBLE WALL BOARD NO COMBUSTIBLE MATERIAL ON FACE MINIMUM 12 TO PERPENDICULAR SIDEWALL HEARTH EXTENSION 60 X 20 1 CHIMNEY AI...

Page 4: ...67 11 GAS LINE KNOCK OUTS AIR KIT KNOCK OUT LEFT SIDE OUTSIDE AIR 11 2 AIR SPACE BACK AND SIDES 0 TO BOTTOM GAS LINE KNOCKOUTS 12 EACH SIDE COMBUSTIBLE WALL BOARD NO COMBUSTIBLE MATERIAL ON FACE MINI...

Page 5: ...RIAL TERMINATION SQUARE CHASE TOP ROUND TOP TERMINATION COMBUSTIBLE WALL BOARD NO COMBUSTIBLE MATERIAL ON FACE 0 TO BOTTOM OUTSIDE AIR 11 2 AIR SPACE BACK AND SIDES GAS LINE KNOCKOUTS 12 EACH SIDE MIN...

Page 6: ...allation The minimum height of the chimney measured from the base of the fireplace to the flue gas outlet of the termination is 9 5 feet minimum of 4 feet of chimney pipe sections required for outdoor...

Page 7: ...hearth extension with a non combustible material see Figure 3 WARNING Hearthextension is to be installed only as shown in Figure 3 Fireplace Installation Continued Figure 3 Hearth Extension Seal Gap...

Page 8: ...imney together it is important to assure the joint between the chimney sections is locked Check by pulling chimney upward after locking The chimney will not come apart if properly locked It is not nec...

Page 9: ...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...

Page 10: ...ling Frame Firestop Spacer Screws or Staples Min of 8 Firestop Spacer Screws or Staples Min of 8 Penetrating the roof To maintain a 1 JM36 or 2 JM42 JM50 clear ance to the pipe on a roof with a pitch...

Page 11: ...f using 8 x 3 4 screws and then sealed with roof coating to prevent leakage through the screw holes A roof coating must also be applied around the perimeter of the flashing to provide a proper seal Na...

Page 12: ...her opening When overlapping with a noncombustible facing material use only noncombustible mortar or adhesive Optional Gas Line Installation Gas line hook up should be done by your supplier or a quali...

Page 13: ...s log the damper must be removed or permanently locked in the fully open position and the glass doors must be in the fully open position Figure 18 Gas Line Knockout Side Firebrick Finished Side Refrac...

Page 14: ...RIGHT PANEL HEARTH PANEL AH Q P AG AC AE AF FULL AF AF AP AC AG AT AG Q AI Q AI C C D D FULL C D C G FULL FULL G FULL FULL FULL FULL FULL H H I I M M AB L FULL D C AS C FULL FULL FULL FULL FULL FULL...

Page 15: ...Installation for Model V JM42 Brick Installation Continued See instruction on page 14 before installing brick AO REAR PANEL RIGHT PANEL HEARTH PANEL R FULL FULL FULL FULL FULL FULL FULL B D C A B C A...

Page 16: ...A AB AC AD Box 1 Hearth 36 2 Box 2 Rear 36 2 Box 3 Left or Right 36 1 2 Box 4 Left or Right 36 1 2 TOTAL 4 0 0 0 0 0 0 0 0 0 0 2 4 0 brick matrix for model V JM36 Continued Brick Matrix AE AF AG AH AI...

Page 17: ...W X Y Z AA AB AC AD Box 1 Hearth 42 2 2 2 2 2 2 Box 2 Rear 42 1 Box 3 Left or Right 42 1 1 Box 4 Left or Right 42 1 1 TOTAL 3 2 0 0 2 2 2 2 2 0 2 0 0 0 Brick Matrix V JM42 brick matrix for model V JM4...

Page 18: ...ix Q R S T U V W X Y Z AA AB AC AD Box 1 Hearth 50 Box 2 Rear 50 3 Box 3 Left or Right 50 1 1 Box 4 Left or Right 50 1 1 TOTAL 5 2 0 0 0 0 0 0 0 0 0 0 0 0 Brick Matrix V JM50 brick matrix for model V...

Page 19: ...of grout mixture This will keep the mixture moist and it will not dry out before use 5 Begin grouting by first doing a Filler Pass This is done by filling the joint about 3 4 full with grout mixture...

Page 20: ...door frame into face opening and tighten screws see Figure 25 door frame MODELS BDMO36E G C BDMO42E G C AND BDMO50E G C Installation 1 Remove screws from smoke shelf see Figure 26 2 Mount top door fra...

Page 21: ...he glass must be allowed to warm slowly and evenly The tempered glass will withstand a gradual temperature rise to 550 F which is more than a normal fire will generate Such materials as pitch wax lade...

Page 22: ...tallation in Vented Fireplaces ANSI Z21 60 or American Gas Association draft requirements for Gas Fired Log Lighters for Wood Burning Fireplaces Draft NO 4 dated August 1993 If you wish to install an...

Page 23: ...BDM42E 42 Ebony BDM42G 42 Pewter BDM42C 42 Oiled Bronze BDM50E 50 Ebony BDM50G 50 Pewter BDM50C 50 Oiled Bronze BDMO36E 36 Ebony BDMO36G 36 Pewter BDMO36C 36 Oiled Bronze BDMO42E 42 Ebony BDMO42G 42...

Page 24: ...OT A UPC 117541 01 Rev B 11 05 117541 01 Firestop Spacer FS 10 1100EFS 10DM for model GM36 Roof Flashing V6F 10DM 0 to 6 12 Pitch V12F 10DM 6 12 to 12 12 Pitch Replacement and Accessory Parts Continue...

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