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    For more information, visit www.desatech.com 

 
OPTIONAL GAS LINE INSTALLATION 
 

Gas line hook up should be done by your supplier or a 
qualified service person. 
 

NOTE:

 Before you proceed, make sure your gas supply is 

turned off. 
 
Use only a ½ inch black iron pipe and appropriate fittings.  
STEP 1: To install, remove the knockout indentation on the 
refractory, (or firebrick), wall located above the refractory 
hearth floor.  The knockout indentation must be firmly tapped 
with any solid object until it is released.  Remove fragmented 
portions of refractory (see figure 19). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
STEP 2: Remove gas line cover plate located on either side of 
fireplace and pull out insulation from gas line conduit sleeve.  
Save insulation for reuse. 
 
STEP 3: Run a ½ inch black iron gas line into the fireplace 
through the rear at gas line conduit sleeve (if using a raised 
platform, add height).  Provide sufficient gas line into 
fireplace chamber for fitting connection (see figure 20). 
 
NOTE: Secure incoming gas line to wood framing to provide 
rigidity for threaded end. 
 
STEP 4: 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 the gas appliance or cap-off gas line if desired. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
If you install a decorative gas appliance (vented gas log), the 
decorative gas appliance must comply with the 

Standard for 

Decorative Gas Appliance for Installation in Solid Fuel 
burning Fireplaces, ANS Z21.60, Z21.84 or RGA 2-72,

 and 

shall also be installed in accordance with the 

National Fuel 

Gas Code, ANS Z223.1-NFPA 54 latest edition. 
  
 
 
 
 
 
 
 
 
 
 
 

CAUTION:

 All gas piping and connections must be tested 

for leaks after the installation is completed.  After ensuring 
that the gas valve is on, apply soap and water solution to 
all connections and joints.  Bubbles forming show a leak.  
Correct all leaks at once.  DO NOT USE AN OPEN 
FLAME FOR LEAK TESTING AND DO NOT 
OPERATE ANY APPLIANCE IF A LEAK IS 
DETECTED.  LEAK TESTING SHOULD BE DONE BY 
A QUALIFIED SERVICE PERSON. 

WARNING

: Do not operate an unvented gas log set in 

this fireplace with the chimney removed. 

WARNING

: If the fireplace has been used for wood 

burning, the firebox and chimney must be cleaned of soot, 
creosote and ashes by a qualified chimney cleaner.  
Creosote will ignite if highly heated. 

WARNING

: When using a decorative vented gas 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 20         GAS LINE INSTALLATION 

 

Figure 19         GAS LINE KNOCKOUT 

Summary of Contents for (V)GM36

Page 1: ...lace or 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 to ANS Z21 11 2 standard WARNING Always leave glass doors...

Page 2: ...LINEAL GAIN PG 6 8 CHIMNEY PIPE AND OFFSET INSTALLATION PG 6 7 9 FIRESTOP SPACERS PG 7 10 FLASHING AND TERMINATION PG 8 9 11 MANTEL CLEARANCE PG 9 10 12 FINISHING YOUR FIREPLACE PG 10 13 OPTIONAL GLA...

Page 3: ...1 For more information visit www desatech com SPECIFICATIONS 50 MODEL ALL DIMENSIONS IN THIS MANUAL ARE IN INCHES UNLESS OTHERWISE SPECIFIED...

Page 4: ...2 For more information visit www desatech com SPECIFICATIONS 42 MODEL ALL DIMENSIONS IN THIS MANUAL ARE IN INCHES UNLESS OTHERWISE SPECIFIED...

Page 5: ...3 For more information visit www desatech com SPECIFICATIONS 36 MODEL ALL DIMENSIONS IN THIS MANUAL ARE IN INCHES UNLESS OTHERWISE SPECIFIED...

Page 6: ...12 GM36 Top Spacers 0 minimum Mantel Clearances see page 8 Mantels Chimney Outer Pipe Surfaces 2 minimum 1 GM36 MINIMUM MAXIMUM CHIMNEY HEIGHT The minimum height of the chimney measured from the base...

Page 7: ...e of galvanized sheet metal 28 gage minimum to prevent corrosion STEP 6 Using screws or nails secure the fireplace to the framing through flanges located on the sides of the fireplace HEARTH EXTENSION...

Page 8: ...aking 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 chimney sections is lo...

Page 9: ...e complete separation from one floor 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 firestop must be placed...

Page 10: ...ing chart Slide flashing over pipe until base is flat against roof Replace as many shingles as needed to cover exposed area and flashing base Secure in position by nailing through shingles see figure...

Page 11: ...d must be at least 2 feet above the highest point of the roof that is within a horizontal distance of 10 feet see figure 16 MANTELS A mantel may be installed if desired see figure 17 Woodwork such as...

Page 12: ...evenly The tempered glass will withstand a gradual temperature rise to 550 degrees Fahrenheit which is more than a normal fire will generate Such materials as pitch wax laden logs very dry mill end l...

Page 13: ...ement or commercial furnace cement Install the gas appliance or cap off gas line if desired If you install a decorative gas appliance vented gas log the decorative gas appliance must comply with the S...

Page 14: ...r up will free the outside air door to open Pulling the lever down will lock the door close FOR FURTHER OPERATING GUIDELINES INSTRUCTIONS AND WARRANTY INFORMATION PLEASE REFER TO YOUR HOMEOWNERS GUIDE...

Page 15: ...ce NOTE The left and right panels have identical bricks See instruction on page 19 before installing brick S NOTE INSTALLATION OF BRICK SHOULD BE DONE AFTER THE FIREPLACE IS PLACED IN A PERMANENT LOCA...

Page 16: ...e bricks in this sequence NOTE The left and right panels have identical bricks See section on page 19 before installing brick S NOTE INSTALLATION OF BRICK SHOULD BE DONE AFTER THE FIREPLACE IS PLACED...

Page 17: ...ortant to install the bricks in this sequence NOTE The left and right panels have identical bricks See section on page 19 before installing brick S NOTE INSTALLATION OF BRICK SHOULD BE DONE AFTER THE...

Page 18: ...9 3 3 3 3 1 1 TOTAL 37 6 6 6 6 6 6 0 0 0 0 4 4 0 0 2 0 3 BRICK MATRIX R S T U V W X Y Z AA AB AC AD AE AF AG AH AI BOX 1 HEARTH 42 2 2 2 2 2 2 BOX 2 REAR 42 2 BOX 3 LEFT or RIGHT 42 1 1 BOX 3 LEFT or...

Page 19: ...ULD BE DONE AFTER THE FIREPLACE IS PLACED IN A PERMANENT LOCATION HM HZ HO HJ HJ HJ HR HG HG HI HI HN HEARTH PANEL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL HL HL HL HL HL HL HAAF HA...

Page 20: ...or right panel It is important to install the bricks in this sequence NOTE INSTALLATION OF BRICK SHOULD BE DONE AFTER THE FIREPLACE IS PLACED IN A PERMANENT LOCATION HL HL HL HL HL HAAF HAAF HAAF HAAF...

Page 21: ...NOTE INSTALLATION OF BRICK SHOULD BE DONE AFTER THE FIREPLACE IS PLACED IN A PERMANENT LOCATION HL HXX HAAH HVV HAAH HAAH HAAH HVV HVV HWW HAAG HAAF HAAF HAAF HF HJ HF HF HF HE HAAG FULL FULL FULL HL...

Page 22: ...32 3 3 5 3 1 8 1 6 12 1 9 BRICK MATRIX HM HN HO HZ HAA HBB HCC HDD HEE HFF HGG HHH BOX 1 HEARTH 42 1 1 1 1 1 1 BOX 2 REAR 42 1 1 BOX 3 LEFT 42 1 1 1 BOX 4 RIGHT 42 TOTAL 1 1 1 1 1 1 1 1 0 1 1 1 BRICK...

Page 23: ...k firmly into the brick housing until it snaps The groove line on the side of the brick will come in contact with the flange on the brick housing This secures the brick into the housing INSTALLING BRI...

Page 24: ...xture that might have gotten onto the brick will easily wipe off 2 In a heavy duty mixing bucket pour seven 7 cups of water in first then add in 4 5 lbs half of one bag provided of sand and 4 5 lbs of...

Page 25: ...e joint should now be flush with the brick surface 8 Using a Joint Striker force the grout mixture into the joint and sweep back and forth until the grout is smooth and round If when pressing the grou...

Page 26: ...re using flat head screws provided INSTALLING DOOR FRAME To install glass door frame construct an opening see table below on the front face of the fireplace Insert door frame into face opening and tig...

Page 27: ...top pins slide into door track Door is installed when top door pin snaps into spring clip Repeat step for remaining door If you find the doors do not close properly or do not appear level or straight...

Page 28: ...26 For more information visit www desatech com REPLACEMENT AND ACCESSORY PARTS...

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