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110749-01E

10

2.  Install gas piping to firebox location. See 

Installing  Gas  Line

,  page  11  and 

Con-

necting to Gas Supply

 in log set owner’s 

manual.

3. 

Carefully set firebox in front of rough opening 
with back of firebox inside wall opening.

4. 

Carefully insert firebox into rough opening.

5.  Attach  firebox  to  wall  studs  using  nails 

or wood screws through holes in nailing 
flange (see Figure 7).

6.  Install  and  properly  test  gas  log  heater. 

Follow  installation  instructions  included 
with the vent-free gas log heater that is 

being installed.

IMPORTANT:

  When  finishing  your  firebox, 

combustible  materials  such  as  wall  board, 
gypsum board, sheet rock, drywall, plywood, 

etc. may be butted up next to the sides and top 

of the firebox. Combustible materials should 
never overlap the firebox front facing.

 WARNING: do not allow any 

combustible materials to overlap 

the firebox front facing.

IMPORTANT:

 Noncombustible materials such 

as brick, tile, etc. may overlap the front facing, 
but should never cover any necessary open-
ings like louvered slots.

  WARNING:  do  not  allow 

noncombustible  materials  to 

cover any necessary openings 

like louvered slots.

installation

Continued

Figure 7 - Attaching Firebox to Wall Studs

Nailing 
Flanges

Nails or 
Wood 

Screws 

Figure 8 - Installing Cabinet Mantel 

(Mantel May Vary From Illustration)

Cabinet 
Mantel

Gas 
Piping 

  WARNING:  use  only  non-

combustible  mortar  or  adhe

-

sives when overlapping the front 

facing  with  noncombustible 

facing material.

INstAllING FIRebox usING 
optIoNAl mANtels AvAIlAble 
FRom RetAIleR oR custom buIlt 

 warninG: a qualified ser

-

vice person must install firebox. 

follow all local codes.

This firebox may be installed using a cabinet 
mantel  against  a  wall  in  your  home.  The 
firebox and cabinet mantel can be installed 
directly  on  the  floor.  Mantels  may  be  avail

-

able  from  your  retailer  or  custom  built  for 
your home.
1.  Assemble cabinet mantel as instructed.

2.  Install gas piping to firebox location. See 

Installing Gas Line

, page 11. You may have 

to cut an access hole in the floor or wall to 
run gas line to firebox. Make sure to locate 
access hole so cabinet mantel will cover it 
when installed (see Figure 8).

3.  Place firebox on floor in desired location. 

Make  sure  mantel  will  be  flush  against 
wall when installed.

4.  Carefully slide cabinet mantel over firebox. 

Be careful not to scratch firebox, cabinet 
mantel, flooring, etc., when installing (see 

Figure 9, page 11).

Gas Line 
Access Hole 
(Either Side 
of Firebox)

Summary of Contents for V50S

Page 1: ...s fired unvented decorative room heater Not to exceed 40 000 Btu Hr Do not build a wood fire Carefully review the instructions supplied with the decorative type unvented room heater for the minimum fi...

Page 2: ...operty damage Refer to this manual for correct in stallation and operational procedures For assistance or additional information consult a qualified installer service agency or the gas supplier WARNIN...

Page 3: ...sed or stored under dusty conditions 6 Do not use this firebox to cook food or burn paper or other objects 7 Turn unit off and let cool before servicing Only a qualified service person should service...

Page 4: ...ner Your firebox features a concrete refractory brick liner As with all concrete liners this liner may develop slight cracks when exposed to heat These cracks will not affect the perfor mance of the f...

Page 5: ...rectly with the space in which the appliances are installed through openings not furnished with doors are considered a part of the unconfined space Adjoining rooms are communicating only if there are...

Page 6: ...tion air from the outdoors and vents to the outdoors Example Gas water heater __________ Btu Hr Vent free fireplace _________ Btu Hr Total _________ Btu Hr 4 Compare the maximum Btu Hr the space can s...

Page 7: ...ills or ducts You must provide two perma nent openings one within 12 of the ceiling and one within 12 of the floor Connect these items directly to the outdoors or spaces open to the outdoors These spa...

Page 8: ...flooring firebox should be installed on a metal or wood panel extending the full width and depth of enclosure D Clearances from the bottom of firebox to the floor is 0 Installation Figure 4 Minimum C...

Page 9: ...emove mantel Built In Firebox Installation Built in installation of this firebox involves installing firebox into a framed in enclosure Installation Continued This makes front of firebox flush with wa...

Page 10: ...ke louvered slots Installation Continued Figure 7 Attaching Firebox to Wall Studs Nailing Flanges Nails or Wood Screws Figure 8 Installing Cabinet Mantel Mantel May Vary From Illustration Cabinet Mant...

Page 11: ...s Line and Equipment Shutoff Valve Model May Vary From Illustration Knockout Locations Knock Out One Hole Gas Line Hole Locate recessed knockout in one of the fire brick sidewall liners see Figures 10...

Page 12: ...FIREPLACE HOOD AND SCREEN 1 Attach hood to firebox using screws pro vided see Figure 12 2 Insert each rod through all rings located at top of screen 3 Insert first rod into rear hole in left side of...

Page 13: ...alling DESA Heating LLC have ready model and serial numbers of your heater the replacement part number You may have further questions about installa tion operation or troubleshooting If so con tact DE...

Page 14: ...www desatech com 110749 01E 14 Parts Models V50H V50S and VFB50NC 1 1 1 2 3 4 5 7 28 9 10 6 11 12 13 29 31 8 16 17 18 19 33 34 19 26 25 25 23 38 32 36 37 35 20 21 22 14 24 30 6...

Page 15: ...111428 02 Bottom Rear Refractory Red 1 111512 02 Bottom Rear Refractory H Bone 1 22 111423 01 Right Refractory 1 111423 02 Right Refractory Red 1 111507 02 Right Refractory H Bone 1 23 111424 01 Left...

Page 16: ...proved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use origin...

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