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Models V50s, V50sH and VFB50nC

Vent-Free FireBoxes

UnVented (Vent-Free) UniVersal FireBox

oWner’s oPeration and installation ManUal

 WARNING: If the information in this manual is not 

followed exactly, a fire or explosion may result causing 
property damage, personal injury or loss of life.

FoR use oNly WIth A lIsted GAs-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 
fireplace size requirement.

do  Not  INstAll  AN  ApplIANce  IN  thIs  FIRebox 
uNless thIs FIRebox meets the mINImum dImeN-

sions requireD for tHe installation.

this  firebox  has  been  tested  and  approved  under ansi 
Z21.91 for use with any ansi Z21.11.2 approved gas logs.

installer:  leave  this  manual  with  the  appliance.

 

ConsuMer: retain this manual for future reference.

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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