United States Stove Company 2020N User Manual

Model: 2020LModel: 2020L

Model: 2020L

Model: 2020LModel: 2020L

Supplemental Heater

®®

WNER'S OPERAWNER'S OPERA

WNER'S OPERA

WNER'S OPERAWNER'S OPERA

United States

Stove Company

Vent-Free Gas Fireplace

Model: 2020NModel: 2020N

Model: 2020N

Model: 2020NModel: 2020N

Supplemental Heater

TION AND INSTTION AND INST

TION AND INST

TION AND INSTTION AND INST

ALLAALLA

ALLA

ALLAALLA

TION MANUTION MANU

TION MANU

TION MANUTION MANU

ALAL

This firebox may be installed in an aftermarket* manufactured (mobile) home,This firebox may be installed in an aftermarket* manufactured (mobile) home,

This firebox may be installed in an aftermarket* manufactured (mobile) home,

This firebox may be installed in an aftermarket* manufactured (mobile) home,This firebox may be installed in an aftermarket* manufactured (mobile) home,

where not prohibited by state or local codes.where not prohibited by state or local codes.

where not prohibited by state or local codes.

where not prohibited by state or local codes.where not prohibited by state or local codes.

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

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

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

appliance is not convertible for use with other gases.appliance is not convertible for use with other gases.

appliance is not convertible for use with other gases.

appliance is not convertible for use with other gases.appliance is not convertible for use with other gases.

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

(i.e. Installation of this product is permitted after the manufactured (mobile) home is sited).

This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided. Refer to "Adequate Combustion And Ventilation Air" on pages 6-10 of this manual.

ARNING:ARNING:

ARNING:

ARNING:ARNING:

Do not use a blower insert,Do not use a blower insert,

Do not use a blower insert,

Do not use a blower insert,Do not use a blower insert,

heat exchanger insert or otherheat exchanger insert or other

heat exchanger insert or other

heat exchanger insert or otherheat exchanger insert or other

accessories not approvedaccessories not approved

accessories not approved

accessories not approvedaccessories not approved

or use with this heateror use with this heater

or use with this heater

or use with this heateror use with this heater

Save this manual for

future reference.

ARNING:ARNING:

ARNING:

ARNING:ARNING:

not fnot f

olloollo

not f

ollo

not fnot f

olloollo

result causing prresult causing pr

result causing pr

result causing prresult causing pr or loss of life.or loss of life.

or loss of life.

or loss of life.or loss of life.

~Do not store or use gasoline or other flammable~Do not store or use gasoline or other flammable

~Do not store or use gasoline or other flammable

~Do not store or use gasoline or other flammable~Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or anyvapors and liquids in the vicinity of this or any

vapors and liquids in the vicinity of this or any

vapors and liquids in the vicinity of this or anyvapors and liquids in the vicinity of this or any other appliance.other appliance.

other appliance.

other appliance.other appliance. ~WHA~WHA

~WHA

~WHA~WHA

Do not try to light any applianceDo not try to light any appliance

Do not try to light any appliance

Do not try to light any applianceDo not try to light any appliance

Do not touch any electrical switch; do notDo not touch any electrical switch; do not

Do not touch any electrical switch; do not

Do not touch any electrical switch; do notDo not touch any electrical switch; do not use any phone in your buildinguse any phone in your building

use any phone in your building

use any phone in your buildinguse any phone in your building

Immediately call your gas supplier from aImmediately call your gas supplier from a

Immediately call your gas supplier from a

Immediately call your gas supplier from aImmediately call your gas supplier from a neighbor's phone. Follow the gas supplier'sneighbor's phone. Follow the gas supplier's

neighbor's phone. Follow the gas supplier's

neighbor's phone. Follow the gas supplier'sneighbor's phone. Follow the gas supplier's instructionsinstructions

instructions

instructionsinstructions

If yIf y

If y

If yIf y the fire departmentthe fire department

the fire department

the fire departmentthe fire department

~Installation and service must be performed by~Installation and service must be performed by

~Installation and service must be performed by

~Installation and service must be performed by~Installation and service must be performed by a qualified installera qualified installer

a qualified installer

a qualified installera qualified installer suppliersupplier

supplier

suppliersupplier

If the inf If the inf

If the inf

If the inf If the inf

wed ewed e

wed e

wed ewed e

T T

O DO IF O DO IF

O DO IF

T T

O DO IF O DO IF

ou cannot reacou cannot reac

ou cannot reac

ou cannot reacou cannot reac

xactlxactl

xactl

xactlxactl

operoper

oper

operoper

OU SMELL GASOU SMELL GAS

OU SMELL GAS

OU SMELL GASOU SMELL GAS

ormation in this manormation in this man

ormation in this man

ormation in this manormation in this man

a fire or e a fire or e

a fire or e

a fire or e a fire or e

ty damaty dama

ty dama

ty damaty dama

h yh y

our gas supplierour gas supplier

h y

our gas supplier

h yh y

our gas supplierour gas supplier

ser ser

vice avice a

ser

vice a

ser ser

vice avice a

xplosion maxplosion ma

xplosion ma

xplosion maxplosion ma

per per

sonal injursonal injur

per

sonal injur

per per

sonal injursonal injur

encenc

enc

encenc

or the gas or the gas

or the gas

or the gas or the gas

ual isual is

ual is

ual isual is

call call

call

call call

851466-A

TABLE OF CONTENTS

SECTIONSECTION

SECTION

SECTIONSECTION

LOCAL CODES.......................................................................................................2

W ARNINGS/SAFETY INFORMA TION.................................................................2-4

2020 SPECIFICATIONS.....................................................................................4-5

PRODUCT FEATURES...........................................................................................6

LOCA TING THE FIREPLACE.....................................................................................6

AIR FOR COMBUSTION AND VENTILATION..................................................6-10

INSTALLATION................................................................................................10-11

SCREEN REMOVAL.............................................................................................11

GAS CONNECTION........................................................................................12-13

GAS PRESSURE CHECK.....................................................................................13

LOG ASSEMBLY ...................................................................................................14

OPERATING INSTRUCTIONS ........................................................................15-17

CLEANING/SERVICING..................................................................................17-18

FLAME APPEARANCE.........................................................................................18

PARTS DIA GRAM & LIST.................................................................................19-20

BLOWER KIT WIRING DIAGRAM.......................................................................21

OPTIONAL ACCESSORIES.................................................................................22

WIRING GUIDE FOR 2020.............................................................................23-24

NOTES............................................................................................................25-27

HOW T O ORDER REP AIR PARTS........................................................................28

GEGE

LOCAL CODES

Install and use fireplace 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, also known as NFPA 54*. Firebox must be electrically grounded in accordance with the National Electric Code, ANSI/ NFPA 70 (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

WARNINGS/SAFETY INFORMATION

IMPORIMPOR

IMPOR

IMPORIMPOR assemble, operate, or service this fireplace. Improper use of this fireplace can causeassemble, operate, or service this fireplace. Improper use of this fireplace can cause

assemble, operate, or service this fireplace. Improper use of this fireplace can cause

assemble, operate, or service this fireplace. Improper use of this fireplace can causeassemble, operate, or service this fireplace. Improper use of this fireplace can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon poi-serious injury or death from burns, fire, explosion, electrical shock, and carbon poi-

serious injury or death from burns, fire, explosion, electrical shock, and carbon poi-

serious injury or death from burns, fire, explosion, electrical shock, and carbon poi-serious injury or death from burns, fire, explosion, electrical shock, and carbon poisoning.soning.

soning.

soning.soning.

ANTANT

ANT

ANTANT

Read this o Read this o

Read this o

Read this o Read this o

wner's manwner's man

wner's man

wner's manwner's man

ual carefullual carefull

ual carefull

ual carefullual carefull

y and completely and completel

y and completel

y and completely and completel

y befy bef

y bef

y befy bef

ore trore tr

ore tr

ore trore tr

ying toying to

ying to

ying toying to

WARNINGS/SAFETY INFORMATION

ARNING:ARNING:

ARNING:

ARNING:ARNING:

1. This heater shall not be installed in a bedroom or bathroom.

2. Never install the fireplace * in a recreational vehicle * where curtains, furniture, clothing, or other flammable objects are less than

* in high traffic areas * in windy or drafty areas

3. Do not add extra logs or ornaments such as pine cones, vermiculite, or rock wool. Using these added items can cause sooting.

4. You must operate this fireplace with the fireplace screen in place. Make sure these parts are in place before running.

5. Do not allow fans to b lo w directly into the firebo x. Avoid an y drafts that alter b urner flame patterns. Ceiling fans can create drafts that alter burner flame patterns. Altered burner patterns can cause sooting.

Any change to this heater or its controls can be dangerous.

36 inches from the front, top, or side of the fireplace

CONTINUED

6. To prevent malfunction and/or sooting, an unvented gas heater should be cleaned at least annually by a professional service person. More frequent cleaning may be required due to excessive lint from carpeting, etc. It is imperative that control compartments, burners and circulating air passageways be kept clean.

7. Correct placement of the ceramic fiber logs is necessary to avoid problems with sooting. Sooting can settle on surfaces outside the heater and cause discoloration. See the appropriate section of this manual for instructions.

8. This Vent-free gas log heater requires fresh air ventilation to run properly. See

Combustion and Ventilation

9. Do not run fireplace * where flammable liquids or vapors are used or stored * under dusty conditions

10. Do not use this fireplace to cook food or burn paper or other objects.

11. Never place any objects in the firebox or on logs.

12. Fireplace front and screen becomes very hot when running. 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.

13. Carefully supervise young children when they are in the room with fireplace.

instructions in this owner's manual.

Air for

14. Tur n fireplace off and let cool before servicing. Only a qualified service person should service and repair fireplace.

15. Operating vent-free gas log heaters in a fireplace above elevations of 4,500 feet could cause pilot outage.

16. IMPORTANT: The fireplace hood must not be replaced with a hood/canopy which may be provided with the decorative type unvented room heater.

WARNINGS/SAFETY INFORMATION

CONTINUED

17. CARBON MONOXIDE POISONING: Early signs of carbon monoxide poisoning are similar to the flu with headaches, dizziness and/or nausea. If you have these signs, obtain fresh air immediately. Have the heater serviced as it may not be operating properly.

18. This vent-free gas fireplace is intended to be smokeless. If logs appear to smoke, turn off the heater and call a qualified service person. Initial b urn off may cause slight smoke and odor during the first four hours of operation.

19. Input ratings are shown in BTU per hour and are for elevations up to 2,000 feet. For elevations above 2,000 feet, input ratings should be reduced 4 percent for each 1,000 feet above see level. Refer to the National Fuel Gas Code.

20. The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa).

21. The appliance must be isolated from the gas supply piping system be closing its equipment shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).

22. Do not use this gas fireplace if any par t has been under water. Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water.

2020 SPECIFICATIONS

Natural GasNatural Gas

Natural Gas

Natural GasNatural Gas

Manifold Pressure Setting: 4" w.c. Gas Inlet Pressure: Maximum 10-1/2" w.c.

Minimum 5" w.c.

Model NumberModel Number

Model Number

Model NumberModel Number

2020N Manual 20,000 14,000 1

2020L Manual 20,000 14,000 1

ControlsControls

Controls - Main control has 3 positions:

ControlsControls

ypeype

ype

ypeype

Max BTU/HrMax BTU/Hr

Max BTU/Hr

Max BTU/HrMax BTU/Hr

1. OFF - All gas to the burner is shut off at the control

2. PILOT - Valve position to light/maintain a standing pilot

3. ON - Opens valve for gas flow to complete system.

Propane/LPGPropane/LPG

Propane/LPG

Propane/LPGPropane/LPG

Manifold Pressure Setting: 10" w.c. Gas Inlet Pressure: Maximum 13" w.c.

Minimum 11" w .c.

Gas RateGas Rate

Gas Rate

Gas RateGas Rate

Min BTU/HrMin BTU/Hr

Min BTU/Hr

Min BTU/HrMin BTU/Hr

NumberNumber

Number

NumberNumber

of Burnersof Burners

of Burners

of Burnersof Burners

Piezo Ignitor - Piezo Ignitor -

Piezo Ignitor - allows ignition of the pilot without the use of matches or batteries

Piezo Ignitor - Piezo Ignitor -

ON/OFF Switch - ON/OFF Switch -

ON/OFF Switch - Operates gas flow to the burner

ON/OFF Switch - ON/OFF Switch -

HIGH / LOW ControlHIGH / LOW Control

HIGH / LOW Control - Infinite control :

HIGH / LOW ControlHIGH / LOW Control

LOLO

Rotate knob clockwise to

counter clockwise to

LOLO

HIGHHIGH

HIGH.

HIGHHIGH

2020 SPECIFICATIONS,

FIREPLACE TOP VIEW

CONTINUED...

FIREPLACE FRONT VIEW FIREPLACE SIDE VIEW

PRODUCT FEATURES

OperationOperation

Operation

OperationOperation

This Vent-free Gas Fireplace requires no outside venting or chimney making installation easy and inexpensiv e. When used without the optional blower, the fireplace requires no electricity making it ideal for emergency backup heat.

BloBlo

wer Accessorwer Accessor

Blo

wer Accessor

BloBlo

wer Accessorwer Accessor

The 2020 Vent-free Gas Fireplace will accept the Blower Kit accessory. The kit comes with the variable blower. The variable blower allows you to select the fan speed you desire. The blower circulates heated air from the fireplace into the room. Use of the blower is optional.

LOCATING FIREPLACE

PlanningPlanning

Planning

PlanningPlanning

Plan where you will install the fireplace. This will save time and money later when you install the fireplace. Before installation, consider the following:

1. Where the fireplace will be located. Allow for wall and ceiling clearances (see

Installation Clearances

2. Everything needed to complete installation.

3. This model CANNOT be installed in a bedroom or bathroom.

4. Proper air for combustion and ventilation (see below).

, pages 10 & 11).

AIR FOR COMBUSTION AND VENTILATION

ARNINGARNING

ARNING

ARNINGARNING

This heater shall not be installed in a confined space or unusually tight construc-This heater shall not be installed in a confined space or unusually tight construc-

This heater shall not be installed in a confined space or unusually tight construc-

This heater shall not be installed in a confined space or unusually tight construc-This heater shall not be installed in a confined space or unusually tight construction unless prtion unless pr

tion unless pr

tion unless prtion unless pr Read the following instructions to insure proper fresh air for this and other fuel-Read the following instructions to insure proper fresh air for this and other fuel-

Read the following instructions to insure proper fresh air for this and other fuel-

Read the following instructions to insure proper fresh air for this and other fuel-Read the following instructions to insure proper fresh air for this and other fuelburning appliances in your home.burning appliances in your home.

burning appliances in your home.

burning appliances in your home.burning appliances in your home.

Today's homes are built more energy efficient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air 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.

Exhaust fans, fireboxes, clothes dryers, and fuel-burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances.

visions are prvisions are pr

visions are pr

visions are prvisions are pr

vided fvided f

vided f

vided fvided f

or adequate combor adequate comb

or adequate comb

or adequate combor adequate comb

ustion and ventilation airustion and ventilation air

ustion and ventilation air

ustion and ventilation airustion and ventilation air

AIR FOR COMBUSTION AND VENTILATION

Providing adequate ventilationProviding adequate ventilation

Providing adequate ventilation

Providing adequate ventilationProviding adequate ventilation

The following is excerpts from

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 6 through 10 will help you classify your space and provide adequate ventilation.

UnUn

usuallusuall

usuall

UnUn

usuallusuall

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.

Unusually tight construction is defined as construction where:Unusually tight construction is defined as construction where:

Unusually tight construction is defined as construction where:

Unusually tight construction is defined as construction where:Unusually tight construction is defined as construction where: a.a.

a.a.

b.b.

b.b. c.c.

c.c.

y y

Tight ConstructionTight Construction

Tight Construction

y y

Tight ConstructionTight Construction

alls and ceilings ealls and ceilings e

alls and ceilings e

alls and ceilings ealls and ceilings e

water vapor retarder with a rating of one perm (6x10 kg per pa-sec-m ) or lesswater vapor retarder with a rating of one perm (6x10 kg per pa-sec-m ) or less

water vapor retarder with a rating of one perm (6x10 kg per pa-sec-m ) or less

water vapor retarder with a rating of one perm (6x10 kg per pa-sec-m ) or lesswater vapor retarder with a rating of one perm (6x10 kg per pa-sec-m ) or less with openings gasketed or sealed with openings gasketed or sealed

with openings gasketed or sealed

with openings gasketed or sealed with openings gasketed or sealed WW

eather stripping has been adeather stripping has been ad

eather stripping has been ad

eather stripping has been adeather stripping has been ad

Caulking or sealants are applied to areas such as joints around window andCaulking or sealants are applied to areas such as joints around window and

Caulking or sealants are applied to areas such as joints around window and

Caulking or sealants are applied to areas such as joints around window andCaulking or sealants are applied to areas such as joints around window and door frames, between sole plates and floors, between wall-ceiling joints,door frames, between sole plates and floors, between wall-ceiling joints,

door frames, between sole plates and floors, between wall-ceiling joints,

door frames, between sole plates and floors, between wall-ceiling joints,door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines,between wall panels, at penetrations for plumbing, electrical, and gas lines,

between wall panels, at penetrations for plumbing, electrical, and gas lines,

between wall panels, at penetrations for plumbing, electrical, and gas lines,between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings.and at other openings.

and at other openings.

and at other openings.and at other openings.

National Fuel Gas Code. NFPA 54/ANSI Z223.1, Section 5.3,

xposed to the outside atmosphere haxposed to the outside atmosphere ha

xposed to the outside atmosphere ha

xposed to the outside atmosphere haxposed to the outside atmosphere ha

-11 2

andand

and

andand

ded on openabded on openab

ded on openab

ded on openabded on openab

le windole windo

le windo

le windole windo

CONTINUED

ve a continve a contin

ve a contin

ve a continve a contin

ws and doorws and door

ws and door

ws and doorws and door

s s

uousuous

uous

uousuous

andand

and

andand

If your home meets all of the three criteria above, you must provide additional fresh air. See

Ventilation Air From Outdoors

If your home does not meet all of the three criteria above, proceed to page 8.

Confined Space and Unconfined SpaceConfined Space and Unconfined Space

Confined Space and Unconfined Space

Confined Space and Unconfined SpaceConfined Space and Unconfined Space

The National Fuel Gas Code (ANSI Z223.1, 1992 Section 5.3) defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 BTU per hour (4.8m per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 BTU per hour (4.8m per 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 furnished with doors, are considered a part of the unconfined space.

* Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them.

, page 10.

AIR FOR COMBUSTION AND VENTILATION

CONTINUED

Determining if Determining if

Determining if

Determining if Determining if

Use this worksheet to determine if you have a confined or unconfined space.

Space: Space:

Space: Includes the room in which you will install the firebox plus any adjoining rooms with

Space: Space:

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:

If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of the space.

2. Divide the space volume by 50 cubic feet to determine the maximum BTU/Hr the space

can support. _________ (volume of space) 50 cu. Ft. = (Maximum BTU/Hr the space can support)

Example:

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

ou Haou Ha

ou Ha

ou Haou Ha

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

3168 cu. Ft. (volume of space) 50 cu. Ft. = 63.3 or 63,300 (maximum

BTU/Hr the space can support)

Vent-free Firebox __________________ BTU/Hr Gas water heater* __________________ BTU/Hr Gas furnace __________________ BTU/Hr Vented gas heater __________________ BTU/Hr Gas firebox logs __________________ BTU/Hr Other gas appliances* + __________________ BTU/Hr Total = __________________ BTU/Hr

ve a Confined or Unconfined Spaceve a Confined or Unconfined Space

ve a Confined or Unconfined Space

ve a Confined or Unconfined Spaceve a Confined or Unconfined Space

3168 cu. Ft. (volume of space)

Example:

* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.

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: 63,300 BTU/Hr (maximum the space can support)

79,000 BTU/Hr (actual amount of BTU/Hr used) The space in the above example is a confined space because the actual BTU/Hr used is more than the maximum BTU/Hr the space can support. You must 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 room or add ventilation grills between

rooms. See

Gas water Heater 40,000 BTU/Hr Vent-free firebox with log heater + 39,000 BTU/Hr Total = 79,000 BTU/Hr

Ventilation Air From Inside Building

, page 9.

AIR FOR COMBUSTION AND VENTILATION

CONTINUED

B. Vent room directly to the outdoors. See C. Install a lower BTU/Hr firebox, if lower BTU/Hr size makes room unconfined.

If the actual BTU/Hr used is less than the maximum BTU/Hr the space can support, the space is an unconfined space. You will need no additional fresh air ventilation.

If the area in which the heater may be operated is smaller than that defined as anIf the area in which the heater may be operated is smaller than that defined as an

If the area in which the heater may be operated is smaller than that defined as an

If the area in which the heater may be operated is smaller than that defined as anIf the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide ad-unconfined space or if the building is of unusually tight construction, provide ad-

unconfined space or if the building is of unusually tight construction, provide ad-

unconfined space or if the building is of unusually tight construction, provide ad-unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the Na-equate combustion and ventilation air by one of the methods described in the Na-

equate combustion and ventilation air by one of the methods described in the Na-

equate combustion and ventilation air by one of the methods described in the Na-equate combustion and ventilation air by one of the methods described in the National Fuel Gas Codetional Fuel Gas Code

tional Fuel Gas Code

tional Fuel Gas Codetional Fuel Gas Code

VENTILAVENTILA

VENTILA

VENTILAVENTILA

entilation Air Frentilation Air Fr

entilation Air Fr

entilation Air Frentilation Air Fr

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 into adjoining room ( Follow the

and Ventilation

Rework worksheet, adding the space of the adjoining unconfined space. TheRework worksheet, adding the space of the adjoining unconfined space. The

Rework worksheet, adding the space of the adjoining unconfined space. The

Rework worksheet, adding the space of the adjoining unconfined space. TheRework worksheet, adding the space of the adjoining unconfined space. The combined spaces must have enough fresh air to supply all appliances in bothcombined spaces must have enough fresh air to supply all appliances in both

combined spaces must have enough fresh air to supply all appliances in both

combined spaces must have enough fresh air to supply all appliances in bothcombined spaces must have enough fresh air to supply all appliances in both spaces.spaces.

spaces.

spaces.spaces.

TION AIRTION AIR

TION AIR

TION AIRTION AIR

om Inside Buildingom Inside Building

om Inside Building

om Inside Buildingom Inside Building

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

for required size of ventilation grills or ducts.

ANSI Z223.1, ANSI Z223.1,

ANSI Z223.1,

ANSI Z223.1, ANSI Z223.1,

Section 5.3 or applicab Section 5.3 or applicab

Section 5.3 or applicab

Section 5.3 or applicab Section 5.3 or applicab

Ventilation Air from Outdoors

ARNINGARNING

ARNING

ARNINGARNING

see options in Figure 1)

ARNINGARNING

ARNING

ARNINGARNING

, page 10.

le local codes.le local codes.

le local codes.

le local codes.le local codes.

VENTILA TION GRILLS INTO ADJOINING ROOM.

OPTION 1OPTION 1

OPTION 1

OPTION 1OPTION 1

OR REMOVE DOOR INTO ADJOINING ROOM.

OPTION 3OPTION 3

OPTION 3

OPTION 3OPTION 3

Figure 1 - Figure 1 -

Figure 1 -

Figure 1 - Figure 1 -

entilation Air frentilation Air fr

entilation Air fr

entilation Air frentilation Air fr

VENTILATION GRILLS INTO ADJOINING ROOM.

OPTION 2OPTION 2

OPTION 2

OPTION 2OPTION 2

om Inside Buildingom Inside Building

om Inside Building

om Inside Buildingom Inside Building

+ 19 hidden pages