Desa V50s Quick start guide

Save this manual for future reference.

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WARNING: If the information in this manual is not

followedexactly,afireorexplosionmayresultcaus-

ing property damage, personal injury, or loss of life.

— Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any

other appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use

any phone in your building.

• Immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s

instructions.

• If you cannot reach your gas supplier, call the

fire department.

— Installation and service must be performed by a

qualified installer, service agency, or the gas

supplier.

WARNING: Improper installation, ad-

justment, alteration, service, or main-

tenance can cause injury or property

damage. Refer to this manual for cor-

rect installation and operational pro-

cedures. For assistance or additional

informationconsultaqualifiedinstaller,

service agency, or the gas supplier.

WARNING: FOR USE ONLY WITH A

LISTEDDECORATIVETYPEUNVENTED

ROOM HEATER. DO NOT BUILD A

WOOD FIRE.

V50S, V50SH, and VFB50NC Vent-Free Fireboxes

This firebox has been tested and ap-

proved by CSA International under

Z21.91-2001 for use with approved

ANSI Z21.11.2 decorative type

unvented room heater.

This appliance may be installed in an aftermarket*, permanently located, manufactured

(mobile) home, where not prohibited by local codes.

This appliance is only for use with the type of gas indicated on the rating plate. This appliance

is not convertible for use with other gases.

*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

UNVENTED (VENT-FREE)

UNIVERSAL FIREBOX

OWNER’S OPERATION AND

INSTALLATION MANUAL

110749-01A

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TABLE OF CONTENTS

SAFETY INFORMATION

IMPORTANT: Read this owner’s manual carefully and

completely before trying to assemble, operate, or

service this firebox. Improper use of this firebox can

cause serious injury or death from burns, fire, explo-

sion,electricalshock,orcarbonmonoxidepoisoning.

WARNING:Carefullyreviewtheinstructionssup-

plied with the decorative type unvented room heater

for the minimum fireplace size requirement.

DO NOT INSTALL THE APPLIANCE IN THIS FIRE-

BOX, UNLESS THIS FIREBOX MEETS THE MINIMUM

DIMENSIONS REQUIRED FOR THE INSTALLATION.

WARNINGS

WARNING: Any change to this firebox or its

controls can be dangerous.

WARNING:Donotallowfans to blow directly into

the firebox. Avoid any drafts that alter burner flame

patterns. Ceiling fans can create drafts that alter

burner flame patterns. Altered burner patterns can

cause sooting.

WARNING: Do not use a blower insert, heat

exchanger insert, or other accessory not approved

for use with this firebox.

Do not place clothing or other flammable material on

or near the appliance. Never place any objects in the

firebox or on logs.

Firebox front and screen becomes very hot when

running firebox. Keep children and adults away from

hot surfaces to avoid burns or clothing ignition.

Firebox will remain hot for a time after shutdown.

Allow surfaces to cool before touching.

Carefully supervise young children 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 combus-

tiblematerials,gasoline,andotherflammablevapors

and liquids.

TABLE OF CONTENTS

SAFETY INFORMATION ............................................................ 2

LOCAL CODES........................................................................... 3

PRODUCT FEATURES .............................................................. 3

LOCATING FIREBOX ................................................................. 3

PRODUCT SPECIFICATIONS.................................................... 4

AIR FOR COMBUSTION AND VENTILATION ........................... 5

INSTALLATION ........................................................................... 8

ILLUSTRATED PARTS BREAKDOWNAND PARTS LIST ....... 12

TECHNICAL SERVICE ............................................................. 14

REPLACEMENT PARTS .......................................................... 14

ACCESSORIES ........................................................................ 14

OWNER'S REGISTRATION FORM .......................................... 15

WARRANTY INFORMATION...................................... Back Cover

110749-01A

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SAFETY INFORMATION

LOCAL CODES

PRODUCT FEATURES

LOCATING FIREBOX

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, vermicu-

lite, or rock wool. Using these added items can cause sooting.

3. Use only the provided hood, or appropriate hood accessory.

See Accessories, page 14.

4. Vent-free gas log heaters installed in these fireboxes require

fresh air ventilation to run properly. See Air for Combustion

and Ventilation, pages 5 through 7.

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.

SAFETY INFORMATION

Continued

LOCAL CODES

Install and use fireplace with care. Follow all local codes. In the

absenceoflocalcodes,usethelatesteditionofTheNationalFuelGas

CodeANSIZ223.1/NFPA54*.Fireboxmustbeelectricallygrounded

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

PRODUCT FEATURES

OPERATION

This firebox is designed for use with approved ANSI Z21.11.2

decorative type unvented room heaters. (Physical size limitations

apply. Refer to minimum firebox requirements supplied with log

heater.)Itrequiresnooutsideventingorchimneymakinginstallation

easy and inexpensive. When used without the blower, the firebox

requires no electricity making it ideal for emergency backup heat.

REFRACTORY BRICK LINER

Your firebox features a concrete refractory brick liner. As with all

concrete liners, this liner may develop slight cracks when exposed

toheat.Thesecrackswillnotaffecttheperformanceofthefireplace

or vent-free gas logs.

LOCATING FIREBOX

PLANNING

Plan where you will install the firebox. This will save time and

money later when you install the firebox. Before installation,

consider the following:

1. Where the firebox will be located. Allow for wall and ceiling

clearances (see Installation Clearances, pages 8 and 9).

2. Everything needed to complete installation.

3. These models CANNOT be installed in a bedroom unless the

maximum Btu rating of the installed vent-free log set is less

than 10,000 Btu/hr.

4. Proper air for combustion and ventilation (page 5).

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PRODUCT SPECIFICATIONS

Figure 1 - Firebox Dimensions

Side View

Firebox Top View

Front View

PRODUCT SPECIFICATIONS

110749-01A

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Today’s homes are built more energy efficient than ever. New

materials,increased insulation, andnew construction methodshelp

reduce heat loss in homes. Home owners weather strip and caulk

aroundwindows and doorsto keep thecold air outand the warmair

in. During heating months, home owners want their homes as

airtight as possible.

While it is good to make your home energy efficient, your home

needs to breathe. Fresh air must enter your home. All fuel-burning

appliances need fresh air for proper combustion and ventilation.

Exhaustfans,fireboxes,clothesdryers,andfuelburningappliances

drawairfromthehousetooperate.Youmustprovideadequatefresh

air for these appliances. This will insure proper venting of vented

fuel-burning appliances.

PROVIDING ADEQUATE VENTILATION

The following are excerpts from National Fuel Gas Code, ANSI

Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.

All spaces in homes fall into one of the three following ventilation

classifications:

1. Unusually Tight Construction

2. Unconfined Space

3. Confined Space

The information on pages 5 through 7 will help you classify your

space and provide adequate ventilation.

Unusually Tight Construction

The air that leaks around doors and windows may provide enough

fresh air for combustion and ventilation. However, in buildings of

unusually tight construction, you must provide additional fresh air.

AIR FOR COMBUSTION AND

VENTILATION

WARNING: This firebox shall not be installed in a

confined space or unusually tight construction un-

less provisions are provided for adequate combus-

tion and ventilation air. Read the following instruc-

tionstoinsureproper freshair forthis andotherfuel-

burning appliances in your home.

Unusually tight construction is defined as construction

where:

a. walls and ceilings exposed to the outside atmosphere

have a continuous water vapor retarder with a rating

of one perm (6 x 10-11 kg per pa-sec-m2) or less with

openings gasketed or sealed

and

b. weather stripping has been added on openable win-

dows and doors

and

c. caulking or sealants are applied to areas such as

joints around window and door frames,between sole

platesandfloors,between wall-ceiling joints,between

wall panels, at penetrations for plumbing, electrical,

and gas lines, and at other openings.

If your home meets all of the three criteria above, you

must provide additional fresh air. See

Ventilation Air

From Outdoors

, page 7.

If your home does not meet all of the

three criteria above,

proceed to

Determining Fresh-Air Flow for Firebox Loca-

tion,

page 6.

Confined and Unconfined Space

The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defines a

confined space as a space whose volume is less than 50 cubic feet

per 1,000 Btu per hour (4.8 m3per kw) of the aggregate input rating

of all appliances installed in that space and an unconfined space as

aspacewhosevolumeisnotlessthan50cubicfeetper1,000Btuper

hour (4.8 m3per kw) of the aggregate input rating of all appliances

installed in that space. Rooms communicating directly with the

space in which the appliances are installed*, through openings not

furnishedwithdoors,areconsideredapartofthe unconfined space.

* Adjoining rooms are communicating only if there are doorless

passageways or ventilation grills between them.

AIR FOR COMBUSTION AND VENTILATION

Providing Adequate Ventilation

110749-01A

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WARNING: If the area in which the heater may be

operated is smaller than that defined as an uncon-

fined space or if the building is of unusually tight

construction,provideadequatecombustionandven-

tilation air by one of the methods described in the

National Fuel Gas Code, ANSI Z223.1/NFPA 54 Sec-

tion 5.3

or applicable local codes

DETERMINING FRESH-AIR FLOW FOR

FIREBOX LOCATION

Determining if You Have a Confined or

Unconfined Space

Usethis worksheetto determineifyou haveaconfinedorunconfined space.

Space:Includestheroominwhichyouwillinstallheaterplusanyadjoining

rooms with doorless passageways or ventilation grills between the rooms.

1. Determine the volume of the space (length x width x height).

Length x Width x Height =___________ cu. ft. (volume of space)

Example:

Space size 22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling

height) = 3168 cu. ft. (volume of space)

Ifadditional ventilationtoadjoining roomissuppliedwithgrills oropen-

ings, add the volume of these rooms to the total volume of the space.

2. Multiply the space volume by 20 to determine the maximum Btu/Hr

the space can support.

__________ (volume of space) x 20 = (Maximum Btu/Hr the space

can support)

Example:

3168 cu. ft. (volume of space) x 20 = 63,360 (maximum

Btu/Hr the space can support)

3. Add the Btu/Hr of all fuel burning appliances in the space.

Vent-free heater _____________ Btu/Hr

Gas water heater* _____________ Btu/Hr

Gas furnace _____________ Btu/Hr

Vented gas heater _____________ Btu/Hr

Gas fireplace logs _____________ Btu/Hr

Other gas appliances* + _____________ Btu/Hr

Total = _____________ Btu/Hr

* Do not include direct-vent gas appliances. Direct-vent draws com-

bustion air from the outdoors and vents to the outdoors.

Example:

Gas water heater _____________ Btu/Hr

Vent-free heater + _____________ Btu/Hr

Total = _____________ Btu/Hr

4. Compare the maximum Btu/Hr the space can support with the actual

amount of Btu/Hr used.

__________________ Btu/Hr (maximum the space can support)

__________________ Btu/Hr (actual amount of Btu/Hr used)

Example:

63,360 Btu/Hr (maximum the space can support)

79,000 Btu/Hr (actual amount of Btu/Hr used)

AIR FOR COMBUSTION AND

VENTILATION

Continued

40,000

39,000

79,000

AIR FOR COMBUSTION AND VENTILATION

Determining Fresh-Air Flow For Heater Location

Thespaceinthe above example is a confinedspacebecausethe actual Btu/

Hrusedismorethan themaximumBtu/Hrthespacecansupport.Youmust

provide additional fresh air. Your options are as follows:

A. Rework worksheet, adding the space of an adjoining room. If the

extra space provides an unconfined space, remove door to adjoining

roomoraddventilation grills between rooms. SeeVentilationAirFrom

Inside Building, page 7.

B. Vent room directly to the outdoors. See Ventilation Air From Out-

doors, page 7.

C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room un-

confined.

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can

support,thespaceisanunconfinedspace.Youwillneednoadditionalfresh

air ventilation.

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VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining unconfined space.

When ventilating to an adjoining unconfined space, you must

provide two permanent openings: one within 12" of the ceiling and

one within 12" of the floor on the wall connecting the two spaces

(see options 1 and 2, Figure 3). You can also remove door into

adjoining room (see option 3, Figure 2). Follow the National Fuel

Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion

and Ventilation for required size of ventilation grills or ducts.

Ventilation Air From Outdoors

Provideextrafreshairbyusingventilationgrillsorducts.Youmust

provide two permanent openings: one within 12" of the ceiling and

one within 12" of the floor. Connect these items directly to the

outdoorsorspaces opentotheoutdoors.Thesespacesincludeattics

and crawl spaces. Follow the National Fuel Gas Code, ANSI

Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation

for required size of ventilation grills or ducts.

IMPORTANT:

Do not provide openings for inlet or outlet air into

attic if attic has a thermostat-controlled power vent. Heated air

entering the attic will activate the power vent.

Figure 3 - Ventilation Air from Outdoors

Figure 2 - Ventilation Air from Inside Building

Remove

Door into

Adjoining

Room,

Option

Ventilation Grills

Into Adjoining Room,

Option 2

Ventilation

Grills

Into Adjoining

Room,

Option 1

12"

Outlet

Air Ventilated

Attic

Outlet

Air

Inlet

Air

Inlet Air Ventilated

Crawl Space

Crawl

Space

To Attic

AIR FOR COMBUSTION AND

VENTILATION

Continued

AIR FOR COMBUSTION AND VENTILATION

Ventilation Air

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INSTALLATION CLEARANCES

WARNING: Maintain the minimum clearances. If

you can, provide greater clearances from floor, ceil-

ing, and adjoining wall.

Carefully follow the instructions in column 2. This will ensure safe

installation.

Minimum Wall and Ceiling Clearances (see Figure 4)

A. Clearances from the side of the fireplace cabinet to any com-

bustible material and wall should follow diagram in Figure 4.

Example:

The face of a mantel, bookshelf, etc. is made of

combustible material and protrudes 3 1/2" from the wall. This

combustible material must be 4" from the side of the fireplace

cabinet (see Figure 4).

B. Clearances from the top of the firebox opening to the ceiling

should not be less than 42 inches.

C. When the firebox is installed on carpeting or other combus-

tible material, other than wood flooring, the firebox should be

installed on a metal or wood panel extending the full width

and depth of the enclosure.

D. Clearances from the bottom of firebox to the floor is 0 inches.

Thesefireboxescan be installedasfreestanding units againstawall

with approved cabinet mantels that may be available from your

retailerorsupplier, or asabuilt-in unit. The clearancesarethe same

for either installation method.

INSTALLATION

CAUTION: Log heaters installed in this firebox

create warm air currents. These currents move heat

towallsurfacesnexttofirebox.Installingfireboxnext

to vinyl or cloth wall coverings or operating firebox

whereimpurities(suchas,butnotlimitedto,tobacco

smoke,aromaticcandles,cleaningfluids,oilor kero-

sene lamps, etc.) in the air exist, may discolor walls

or cause odors.

IMPORTANT:

Vent-free gas log heaters add moisture to the air.

Although this is beneficial, installing firebox in rooms without

enough ventilation air may cause mildew to form from too much

moisture.SeeAirforCombustionandVentilation,pages5through7.

IMPORTANT:

Makesurethefireboxislevel.Iffireboxisnotlevel,

log set will not work properly.

Note:

Your firebox is designed to be used in zero clearance

installations. Wall or framing material can be placed against any

exterior surface on the rear, sides, top or bottom of your firebox,

except where standoff spacers are integrally attached. If standoff

spacers are attached to your firebox, these spacers can be placed

directly against wall or framing materials. Use the dimensions

shown for rough opening to create the easiest installation.

Use dimensions shown for rough openings to create the easiest

installation (see Built-In Firebox Installation, page 9).

CAUTION: Do not install the firebox directly on

carpet or vinyl.

WARNING: A qualified service person must in-

stall firebox. Follow all local codes.

WARNING: Never install the firebox

•in a bedroom or bathroom*

•in a recreational vehicle

•where curtains, furniture, clothing, or other flam-

mable objects are less than 42 inches from the

front, top, or sides of the firebox

•in high traffic areas

•in windy or drafty areas

* Unless the installed log set is rated at 10,000 Btu/Hr

or less.

INSTALLATION

Installation Clearances

Figure 4 - Minimum Clearance for Combustible to Wall

*Minimum 16 inches from Side Wall

Example

NOTICE:

The firebox identification label (including

model number, serial number, clearances, etc.) is

located on a chain under the bottom refractory.

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BUILT-IN FIREBOX INSTALLATION

Built-ininstallationof this fireboxinvolvesinstalling firebox intoa

framed-inenclosure.Thismakesthefrontoffireboxflushwithwall.

If installing a mantel above the firebox, you must follow the

clearancesshowninFigure5.Followtheseinstructionstoinstallthe

firebox in this manner.

1. Frame in rough opening. The firebox framing should be con-

structed of 2 x 4 lumber or heavier. Use dimensions and rough

opening layout in Figure 6a. Adjust framing so that firebox

flushes with finished wall surface. If installing in a corner, use

dimensions in Figures 6b for rough opening.

2. Install gas piping to firebox location. See Installing Gas Line on

page11 and ConnectingtoGasSupplyinlogsetowner’smanual.

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, page 10).

6. Install and properly test gas log heater. Follow installation in-

structions included with the vent-free gas log heater that is

being installed.

INSTALLATION

Continued

NOTICE:Ifyourinstallationdoesnotmeettheminimum

clearances shown, you must do one of the following:

•raise the mantel to an acceptable height

•remove the mantel

NOTICE:Surfacetemperatures of adjacent walls and

mantels become hot during operation. Walls and

mantels above the firebox may become hot to the

touch. If installed properly, these temperatures meet

the requirement of the national product standard.

Followallminimumclearancesshowninthismanual.

INSTALLATION

Installation Clearances (Cont.)

Built-In Firebox Installation

Figure 5 - Minimum Mantel Clearances for Built-In Installation

Supplied Firebox

Hood Must Be

Used at All Times

Wire-mesh

Screen

Firebox

Noncombustible

Material May

Project Off this

Surface above

the Firebox Hood

Mantel Shelf

Note:

Any portion of the

mantel shelf must NOT

extend beyond this profile.

12" 16" 20"

11/2"

63/4"

12"

Note:

All vertical

measurements are

from top of fireplace

hood opening to

bottom of mantel shelf.

These minimum

clearances replace any

other recommended

clearances supplied with

your ANSI Z21.11.2

approved gas logs.

Wall board or facing

material (above

firebox) may be of

combustible material,

including decorative

mantel ornaments or

other similar projec-

tions off of the facing

material.

Framing

Material

Figure 6 - Rough Opening for Installing in Wall

30"

(Inside to Inside)

55"

Mantel Clearances for Built-In Installation

If placing custom mantel above built-in firebox, you must meet the

minimum allowable clearance between mantel shelf and top of

firebox opening shown in Figure 5. These are the minimum allow-

able mantel clearances for a safe installation. Use larger clearances

wherever possible to minimize the heating of objects and materials

placed on the mantel.

CAUTION: Do not allow the vent-free gas log

heatertotouchorextendbeyondthefireplacescreen.

Figure 6b

Figure 6a

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Figure 9 - Inserting Firebox Into Cabinet Mantel (Mantel May

Vary From Illustration)

INSTALLATION

Continued

WARNING: Do not allow any combustible materi-

als 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

openings like louvered slots.

WARNING: Do notallownoncombustible materials

to cover any necessary openings like louvered slots.

WARNING: Use only noncombustible mortar or

adhesives when overlapping the front facing with

noncombustible facing material.

Thisfirebox may be installed usinga cabinetmantel against awall in

your home. The firebox and cabinet mantel can be installed directly

on the floor.Mantels may be available from your retailer or custom

built for your home.

WARNING: A qualified service person must in-

stall firebox. Follow all local codes.

INSTALLING FIREBOX USING OPTIONAL

MANTELS AVAILABLE FROM RETAILER OR

CUSTOM BUILT

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 Line

Access Hole

(Either Side

of Firebox) Gas

Piping

INSTALLATION

Built-In Firebox Installation (Cont.)

Installing Firebox Using Optional Mantels Available from Retailer or Custom Built

IMPORTANT:

When finishing your firebox, combustible materials

suchaswallboard,gypsumboard, sheet rock, drywall, plywood,etc.

maybebuttedupnexttothesidesandtopofthefirebox.Combustible

materials should never overlap the firebox front facing.

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 cabinet mantel on floor in desired location. Make sure

mantel is flush against wall.

4. Carefully insert firebox into cabinet mantel. Be careful not to

scratch firebox, cabinet mantel, flooring, etc. when installing

(see Figure 9).

5. Install and properly test gas log heater. Follow installation in-

structions included with the vent-free gas log heater that is

being installed.

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INSTALLATION

Installing Gas Line

Installing Fireplace Hood and Screen

INSTALLATION

Continued

INSTALLING GAS LINE

WARNING: A qualified service person must con-

nect heater to gas supply. Follow all local codes.

IMPORTANT:

See Connecting to Gas Supply in your log set

owner’s manual for details on gas hookup.

You may run the gas line from either side of the firebox (see

Figure 11). Decide which side you want to run the gas line from.

Note:

This is one option for installing shutoff valve. Check local

codes for equipment shutoff valve location requirements.

Locate the recessed knockout in one of the firebrick sidewall liners

(see Figures 10 and 11). Firmly tap the center of the knockout with

a chisel until it is released. Carefully chisel the rough edges of the

holeyouhavemadeto smooth edges. This holewilllineupwiththe

hole in the outer casing.

Locatetherecessedknockoutinoneofthefirebricksidewallliners(see

Figures10 and 11).Firmlytapthecenteroftheknockoutwithachisel

until it is released. Carefully chisel the rough edges of the hole to

smooth edges. This hole will line up with the hole in the outer casing.

Figure 10 - Installing Gas Line and Equipment Shutoff Valve

(Model May Vary From Illustration)

Knockout Locations

(Knock Out One Hole)

Gas Line Hole

CAUTION: Do not use excessive force to remove

the knockout. Too much force may damage the fire-

brick concrete insert.

Equipment

Shutoff

Valves

(Install

One)

" Thick Liner

Figure 11 - Location of Knockout for Gas Line

Knockout Chisel

Firebrick Side Wall

Remove

this Area

Side

View

INSTALLING FIREPLACE HOOD AND SCREEN

1. Attach hood to firebox using screws provided (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 firebox. Fasten rod

to rear hole near center of firebox using #10 x 3/8" Phillips

screw provided (see Figure 13).

4. Insert other rod into front hole on right side of firebox and

fasten using remaining Phillips screw.

Figure 12 - Screw and Hood Placement

Screws

Figure 13 - Installing Fireplace Screen

Screw

Rear Hole

Top View of

Rod Layout

Rod

Front Hole

Ring

Screen

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ILLUSTRATED PARTS BREAKDOWN

ILLUSTRATED PARTS

BREAKDOWN

V50H, V50S, AND VFB50NC

17/18

20 21

24 30

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KEY PART

NO. NUMBER DESCRIPTION QTY.

1 23490 Top Spacer 4

2 110285-03 Fireplace Top 1

3 109731-01 Fireplace Top Insulation 2

4 109732-01 Insulation Pan 1

5 109720-01 Clearance Spacer 1

6 109720-02 Clearance Spacer 2

7 110461-01 Rear Insulation 1

8 110451-01 Right Insulation 1

9 110452-01 Left Insulation 1

10 109738-01 Pan Support Insulation Ring 1

11 110450-01 Firebox Top 1

12 109753-01 Firebox Surround 1

13 109714-01 Refractory Spacer 7

14 109754-01 Firebox Bottom 1

15 109721-01 Firebox Floor Assembly 1

16 20042 Cover Plate 2

17 109752-01 Gas Line One Conduit 2

18 109752-02 Gas Line Two Conduit 2

19 21171 Gas Line Cover 4

20 109871-01 Bottom Front Refractory 1

109871-02 Bottom Front Refractory, Red 1

109876-01 Bottom Front Refractory, H-Bone 1

109876-02 Bottom Front Refracory, Red H-Bone 1

21 109872-01 Bottom Rear Refractory 1

109872-02 Bottom Rear Refractory, Red 1

109877-01 Bottom Rear Refractory, H-Bone 1

109877-02 Bottom Rear Refractory, Red H-Bone 1

PARTS LIST

V50H, V50S, AND VFB50NC

This list contains replaceable parts used in your firebox. When

ordering parts, follow the instructions listed under Replacement

Parts on page 14 of this manual.

PARTS LIST

22 109873-01 Bottom Right Refractory 1

109873-02 Bottom Right Refractory, Red 1

109878-01 Bottom Right Refractory, H-Bone 1

109878-02 Bottom Right Refractory, Red H-Bone 1

23 109874-01 Bottom Left Refractory 1

109874-02 Bottom Left Refractory, Red 1

109879-01 Bottom Left Refractory, H-Bone 1

109879-02 Bottom Left Refractory, Red H-Bone 1

24 109875-01 Bottom Rear Refractory 1

109875-02 Bottom Rear Refractory, Red 1

109880-01 Bottom Rear Refractory, H-Bone 1

109880-02 Bottom Rear Refractory, Red-Bone 1

25 110750-01 Refractory Retainer 2

26 109767-01 Firebox Support 1

27 110451-01 Right Outer Case 1

28 110452-01 Left Outer Case 1

29 110453-01 Rear Outer Case 1

30 21198 Blower Access Plate 1

31 109723-01 Support Pan Bracket 6

32 109511-01 Deflector Hood 1

33 110447-01 Right Corner Bracket 1

34 110447-02 Left Corner Bracket 1

35 110456-01 Screen Rod 2

36 11418 Screen Retainer Clip 2

37 109457-01 Screen 2

38 109757-03 Face Weldment 1

KEY PART

NO. NUMBER DESCRIPTION QTY.

110749-01A

For more information, visit www.desatech.com

ACCESSORIES

NOTICE: All accessories may not be available for all

fireplace models.

Purchase these firebox accessories from your local dealer. If they

can not supply these accessories, call DESA International’s Sales

Departmentat 1-866-672-6040 for information. Youcan alsowrite

to the address listed on the back page of this manual.

EQUIPMENT SHUTOFF VALVE - GA5010

All Models. Equipment shutoff valve with 1/8" NPT tap.

CLEANING KIT - GCK/CCK

AllModels.Your vent-free gas appliancerequiresregular cleaning

and maintenance to prevent performance problems. This kit gives

you the tools and instructions to make it easy to clean all critical

areas of your appliance.

HOODS

H50B - 50" Hood - Brushed Brass

H50P - 50" Hood - Platinum

H50PB - 50" Hood - Polished Brass

TECHNICAL SERVICE

You may have further questions about installation, operation, or

troubleshooting. If so, contact DESA International’s Technical

Service Department at 1-866-672-6040. When calling, please have

your model and serial numbers of your firebox ready.

YoucanalsovisitDESAInternational’stechnicalservicesweb site

at www.desatech.com.

REPLACEMENT PARTS

Note

:Use only original replacement parts. This will protect your

warranty coverage for parts replaced under warranty.

PARTS UNDER WARRANTY

Contact authorized dealers of this product. If they can’t supply

original replacement part(s), call DESA International’s Technical

Service Department at 1-866-672-6040.

When calling DESA International, have ready

• your name

• your address

• model and serial numbers of your firebox

• how firebox was malfunctioning

• type of gas used (propane/LP or natural gas)

• purchase date

Usually, we will ask you to return the part to the factory.

PARTS NOT UNDER WARRANTY

Contactauthorizeddealersof thisproduct.Iftheycan’tsupplyoriginal

replacement part(s), call DESA International at 1-866-672-6040 for

referral information.

When calling DESA International, have ready

• model number of your firebox

• the replacement part number

Note

: The firebox identification label (including model number,

serial number, clearances, etc.) is located on the right front edge of

the firebox.

TECHNICAL SERVICE

REPLACEMENT PARTS

ACCESSORIES

110749-01A

For more information, visit www.desatech.com

1. Where will the product be used?

❍ Living/Family Room ❍ Office/Warehouse ❍ Utility Shed/Outbuilding ❍ Garage ❍ Bedroom ❍ Bathroom ❍ Other

2. If you bought this product yourself, did you plan to purchase this type of product before going into the store? ❍ Yes ❍ No

3. Who selected the product? ❍Male ❍Female ❍Both

4. What is the population of your area? ❍ Under 10,000 ❍ 10,000 to 25,000 ❍25,000 to 50,000 ❍ 50,000 to 100,000

❍ 100,000 to 250,000 ❍ Over 250,000

5. What is your primary source of heat? ❍ Propane (LP Gas) ❍ Fuel Oil ❍ Wood ❍ Natural Gas ❍ Electric ❍ Other

6. How was the product installed? ❍ Professional Installer ❍ Self ❍ Other

7. Cost of product excluding sales tax? $___________________

8. Cost to install product? $____________________

9. Type of store where product was purchased? ❍ Hardware ❍ Propane Dealer ❍ Natural Gas/Utility Co. ❍ Home Center/Builder’s Suppl

❍ Fireplace or Hearth Shop ❍ Farm Store ❍ Other

10. What motivated you to buy this product? ❍ Sudden Cold Weather ❍ Replace Older Model ❍ D.I.Y. Home Project

❍ Emergency Back-Up Heat ❍ Heater was on Sale ❍ Energy Savings/High Efficiency ❍ Construction Project ❍ Other

11. How did you learn about this product brand? ❍ Advertising ❍ Relative or Friend ❍ Store Display ❍ Other ________________________

12. Level of Education of Purchaser: ❍ Some High School ❍ Completed High School ❍ Completed College ❍ Completed Graduate School

13. Age of Purchaser: ❍ Under 20 ❍ 20 - 29 ❍ 30 - 39 ❍ 40 - 49 ❍ 50 - 59 ❍ 60 or Over

14. Buyer’s total annual household income: ❍ Under $15,000 ❍ $15,000 to $19,999 ❍ $20,000 to $34,999 ❍ $35,000 to $49,999

❍ $50,000 to $74,999 ❍ $75,000 to $99,999 ❍ $100,000 and Over

15. Store where product was purchased:

Name: ______________________________________

City: _______________________ State: __________

16. In choosing this product, how important were the following:

Availability

Price

Brand Name

Overall Quality

Heat Output

Made in USA

Warranty

Local Service

Value for Price

Prior Brand Experience

Controls Location

Thermostat, Remote, or Manual Operation

Ease of Operation

Special Features

Salesperson’s Recommendation

Friend/Relative’s Recommendation

Portability

Quiet Operation

OWNER'S REGISTRATION FORM

Please answer the following questions to register your product with DESA International:

In order to provide better customer service for this and future purchases, we recommend that you register your product with us.

You can register online at www.desatech.com. If access to our website is not available to you, please complete this Owner’s

Registration Form and mail to the address on the back of this owner’s manual. Please provide the following product information:

Not Important Somewhat Important Very Important

❍

Brand:

(Comfort Glow, Vanguard, etc.)

Model:

(EFP33PR, VTGH33NR, etc.)

Date Purchased:

Note:

Keep receipt for warranty verification.

Serial Number:

7 or 9 digit number located on product or identification tag.

First Name: Last Name:

Address:

City: State: Zip: Country:

Home Phone: ( ) -

E-Mail:

110749-01A

For more information, visit www.desatech.com

2701 Industrial Drive

P.O. Box 90004

Bowling Green, KY 42102-9004

Postage

Required

TAPE

110749-01A

For more information, visit www.desatech.com

NOTES

_______________________________________________________________________________________________

NOTES

110749-01A

For more information, visit www.desatech.com

LIMITED WARRANTY

VENT-FREE FIREBOX

DESA International warrants this product to be free from defects in materials and components for four (4) years from the date of first purchase,

provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions. To make a claim under

this warranty the Bill of Sale or cancelled check must be presented.

This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater to proper operating

condition and an allowance for labor when provided by a DESA Authorized Service Center. Warranty part(s) MUST be obtained through authorized

dealers of this product and/or DESA International who will provide original factory replacement parts. Failure to use original factory replacement parts

voids this warranty. The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit.

This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail or become damaged as a

result of misuse, accidents, lack of proper maintenance or defects caused by improper installation. As with all concrete liners, this liner may develop

slight cracks when exposed to heat. This cracking is considered normal. Travel, diagnostic cost, labor, transportation and any and all such other costs

related to repairing a defective heater will be the responsibility of the owner.

TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT; THIS

EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND

ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

TO FOUR (4) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE; AND DESA INTERNATIONAL’S LIABILITY

ISHEREBYLIMITEDTOTHEPURCHASEPRICEOFTHEPRODUCTANDDESAINTERNATIONALSHALL NOTBELIABLEFORANY

OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential damages, so

the above limitation on implied warranties, or exclusion or limitation on damages may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.

For information about this warranty write:

2701 Industrial Drive

P.O. Box 90004

Bowling Green, KY 42102-9004

www.desatech.com

KEEP THIS WARRANTY

WARRANTY INFORMATION

Model

Serial No.

Date Purchased

Always specify model and serial numbers when communicating with the factory.

We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty. We make

no other warranty, expressed or implied.

110749-01

Rev. A

08/02

NOT A UPC

110749 01

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