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www.desatech.com

110749-01E

3

firebox  front  and  screen  be

-

comes  very  hot  when  running 

firebox. Keep children and adults 

away from hot surfaces to avoid 

burns or clothing ignition. fire

-

box  will  remain  hot  for  a  time 

after shutdown. allow surfaces 

to cool before touching.

Carefully supervise young chil

-

dren when they are in the room 

with firebox.

You must operate this fireplace 

with  the  provided  fireplace 

screen,  hood,  if  provided,  in 

place.  Make  sure  these  parts 

are  in  place  and  screens  are 

closed  before  running  firebox. 

the supplied hood may not be 

replaced with a hood which may 

be provided with a log heater.

Keep the fireplace area clear and 

free from combustible materials, 

gasoline,  and  other  flammable 

vapors and liquids.

saFety

Continued

1.  Do not use this firebox as a wood-burning 

fireplace. Use only decorative unvented 

room heaters (log sets).

2.  Do not add extra logs or ornaments such as 

pine cones, vermiculite or rock wool. Using 

these added items can cause sooting.

3. 

Use only the provided hood or appropriate 

hood accessory. See 

Accessories

, page 13.

4.  Vent-free gas log heaters installed in these 

fireboxes  require  fresh  air  ventilation  to 

run properly. See 

Air for Combustion and 

Ventilation

, page 5.

5.  Do not run vent-free heaters installed in 

these fireboxes
• where flammable liquids or vapors are 

used 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 and repair firebox.

8.  Operating  vent-free  heaters  installed  in 

these fireboxes above elevations of 4,500 

feet could cause pilot outage.

9.  Do not use the firebox if it has been under 

water.

10. Before using furniture polish, wax, carpet 

cleaner or similar products, turn heater off. If 
heated, the vapors from these products may 

create a white powder residue within burner 
box or on adjacent walls and furniture.

11. Provide adequate clearances around air 

openings.

loCal Codes

Install  and  use  firebox  with  care.  Follow  all 

local  codes. In the absence  of local  codes, 
use the latest edition of 

The National Fuel Gas 

Code ANSI Z223.1/NFPA 54

*. Firebox must 

be electrically grounded in accordance with 

the 

National Electrical Code, ANSI/NFPA70

 

(latest edition).
*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY  10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA  02269

state  of  massachusetts:

  The  installa-

tion must be made by a licensed plumber 

or  gas  fitter  in  the  Commonwealth  of

 

Massachusetts.
Sellers  of  unvented  propane  or  natural 

gas-fired supplemental room heaters shall 

provide to each purchaser a copy of 527 
CMR 30 upon sale of the unit.
Vent-free gas products are prohibited for 
bedroom and bathroom installation in the 

Commonwealth of Massachusetts.

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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