Vanguard Managed Solutions FB32NCA, NLFB32NC User Manual

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UNVENTED (VENT-FREE)

®

32" LogMate

UNIVERSAL

FIREBOX

OWNER’S OPERATION AND INSTALLATION MANUAL

FB32CA (shown)

and NLFB32C

Circulating

Louvered;

FB32NCA and

NLFB32NC

Noncirculating

Smooth Face

Models

Shown with optional

cabinet mantel, hearth

base, brass trim, and

marble trim

accessories.

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.

WARNING: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this

— 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.

manual for correct installation and
operational procedures. For as­sistance or additional information
consult a qualified installer, ser­vice agency, or the gas supplier.

• 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

WARNING: For use only with deco­rative type unvented room heat­ers. Do not build a wood fire.

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.

This firebox may be installed in an aftermarket* manufactured (mobile) home, where not prohibited
by state or local codes.

* 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 firebox has been tested and
approved by I.A.S. under their REQ.
2-97 for use with any ANS Z21.11.2
approved gas logs.

Save this manual for future reference.

®

UNVENTED 32" LogMate

SAFETY
INFORMATION

WARNINGS

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, explosion, electrical shock, or
carbon monoxide poisoning.

CAUTION: Carefully review
the instructions supplied with the
decorative type unvented room
heater for the minimum fireplace
size requirement. Do not install
the appliance in this firebox, un­less this firebox meets the mini­mum dimensions required for the
installation.

WARNING: Any change to
this firebox or its controls can
be dangerous.

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

2. Never install the firebox

• in a recreational vehicle

• where curtains, furniture, clothing, or

other flammable objects are less than
42 inches from the front, top, or sides
of the firebox

• in high traffic areas

• in windy or drafty areas

3. Do not use this firebox as a wood-burn­ing fireplace. Use only decorative
unvented room heaters (log sets).

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

5. Y ou must operate this fireplace with the
fireplace screen, hood, and brick liner
in place. Make sure these parts are in
place and screens are closed before run­ning firebox.

6. Do not allow fans 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.

7. Do not use a blower insert, heat ex­changer insert or other accessory not
approved for use with this heater. Do
not use blower accessory with Models
NLFB32NC and FB32NCA. Use only
the provided hood or GA6096 polished
brass hood accessory (see Accessories
on pages 12 and 13).

8. Vent-free gas log heaters installed in
these fireboxes require fresh air venti­lation to run properly. See Air for Com-
bustion and Ventilation, pages 4
through 6.

9. Do not run firebox

• where flammable liquids or vapors

are used or stored

• under dusty conditions

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

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

12. 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.

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

14. Turn firebox off and let cool before ser ­vicing. Only a qualified service person
should service and repair firebox.

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

16. Do not use the firebox if it has been
under water due to the shock hazard that
could result with the blower accessary
(if installed) in place.

®

FIREBOX

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 ANS Z223.1, also known as NFPA 54*.
Firebox must be electrically grounded in
accordance with the National Electrical Code,
ANS/NFPA70 (latest edition).

*Available from:
American National Standards Institute, Inc.

National Fire Protection Association, Inc.

UNPACKING

1. With utility knife, cut the carton all the

2. Check carton contents for the

3. Check all items for any shipping dam-

1430 Broadway

New York, NY 10018

Batterymarch Park

Quincy, MA 02269

way around above the staples on the
bottom tray . Lift the carton off the fire­box. Remove packing.
is located in the packing on the right
hand side of the heater front. Lift the
heater off the bottom tray.

following:

• Screen assembly (2)

• Screen support rod (2)

• Hood

• Hardware and parts bag containing
the following:

- Owner’s Operation and

Installation Manual

- 2 - Black #10 x 3/8" Phillips

screws

- 3 - Zinc #10 x 1/2" shouldered

hex screws

- 2 - Black #10 x 5/8" shouldered

hex screws
If any items are missing, inform
dealer where you bought firebox.

age. If damaged, promptly inform
dealer where you bought firebox.

Note:

The hood

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105604

PRODUCT
SPECIFICATIONS

Standoffs (Models FB32NCA
and NLFB32NC only)

35 1/16"

3 7/8"

1

1

/4"

OWNER’S MANUAL

3

2

/4"

Built-in
Nailing
Flanges

Louvers
(Models FB32CA and NLFB32C only)

Figure 1 - Firebox Front View

Standoffs
(Models FB32NCA and NLFB32NC only)

3

/4"

2

33

1

1

/2"

6"

11

/16"

3

32

/16"

19

3

/8"

3

/4"

31

6 3/4"

16

1

/4"

19

1

16

/4"

3

/4"

2

3

6

/8"

22 1/2"

11

/16"

13 1/4"

14 1/4"

*

*

Electrical
Access Hole

Electrical Access
Hole with Bushing

Figure 2 - Firebox Side View

105604

12 1/2"

3

9

/4"

5

4

/8"

Gas Line Access

31 5/8"
34 3/8"
35 5/8"

*

Note:

14 1/4" is total firebox cavity depth including brick liner.

1

/2"

2

13 1/4" is depth of flat floor including brick liner.

Figure 3 - Firebox Top View

3

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®

UNVENTED 32" LogMate

PRODUCT
FEATURES

OPERATION

This firebox is designed for use with ap­proved ANS Z21.1.2 decorative type
unvented room heaters. (Physical size limi­tations apply. Refer to minimum firebox
requirements supplied with log heater.) It
requires no outside venting or chimney mak­ing installation easy and inexpensive. When
used without the blower (models FB32CA
and NLFB32C only), the firebox requires
no electricity making it ideal for emergency
backup heat.

BLOWER ACCESSORY

The FB32CA and NLFB32C firebox will
accept the GA3700 accessory. The variable
blower allows you to select the fan speed
you desire. The blower circulates heated air
from the firebox into the room. Use of
blower is optional.

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, page 7).

2. Everything needed to complete instal­lation.

3. These models CANNOT be installed in
a bedroom or bathroom.

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

AIR FOR
COMBUSTION AND
VENTILATION

WARNING: This firebox shall
not be installed in a confined space
or unusually tight construction
unless provisions are provided
for adequate combustion and ven­tilation air. Read the following in­structions to insure proper fresh
air for this and other fuel-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 fuel­burning appliances.

PROVIDING ADEQUATE
VENTILATION

The following are excerpts from National
Fuel Gas Code. NFPA 54/ANS Z223.1, 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 4 through 6 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

®

FIREBOX

buildings of unusually tight construction,
you must provide additional fresh air.

Unusually tight construction is de­fined as construction where:

a. walls and ceilings exposed to the

b. weather stripping has been

c. caulking or sealants are applied

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

From Outdoors,

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

mining Fresh-Air Flow For Firebox
Location

Confined Space and Unconfined
Space

The National Fuel Gas Code (ANS Z2123.1,
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 (4.8 m3 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 (4.8 m3 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.

This firebox shall not be installed in a con­fined space or unusually tight construction
unless provisions are provided for adequate
combustion and ventilation air.

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

outside atmosphere have a con­tinuous water vapor retarder with
a rating of one perm (6x10
per pa-sec-m2) or less with open­ings gasketed or sealed

added on openable windows and
doors

to areas such as joints around
window and door frames, be­tween sole plates and floors, be­tween wall-ceiling joints, be­tween wall panels, at penetra­tions for plumbing, electrical, and
gas lines, and at other openings.

and

Ventilation Air

page 6.

, page 5.

-11

and

Deter-

kg

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105604

OWNER’S MANUAL

AIR FOR
COMBUSTION
AND VENTILATION

Continued

DETERMINING FRESH-AIR FLOW FOR FIREBOX LOCATION

Determining if You Have a Confined or Unconfined Space

Use this work sheet to determine if you have a confined or unconfined space.
Space: Includes the room in which you will install firebox plus any adjoining 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

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.
Gas water heater* _____________________ Btu/Hr
Gas furnace _____________________ Btu/Hr
Vented gas heater _____________________ Btu/Hr
Gas firebox logs _____________________ Btu/Hr
Other gas appliances*+ _____________________ Btu/Hr
T otal = _____________________ Btu/Hr
* 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:

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 Ventilation Air from Inside Building, page 6.

B. Vent room directly to the outdoors. See Ventilation Air from Outdoors, page 6.
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.

: Space size22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling height) = 3168 cu. ft. (volume of space)

3168 cu. ft. (volume of space) ÷ 50 cu. ft. = 63.3 or 63,300 (maximum Btu/Hr the space can support)

Example:

Gas water heater 40,000 Btu/Hr
Vent-free firebox

with log heater + 39,000 Btu/Hr
Total = 79,000 Btu/Hr

63,300 Btu/Hr (maximum the space can support)
79,000 Btu/Hr (actual amount of Btu/Hr used)

WARNING: If the area in which the firebox and gas log heater may be operated is smaller than that defined as
an 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
applicable local codes.

105604

National Fuel Gas Code, ANS Z223.1, 1992, Section 5.3

Continued

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or

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Or

Remove
Door into
Adjoining

Room,
Option

3

Ventilation Grills

Into Adjoining Room,

Option 2

Ventilation

Grills

Into Adjoining

Room,

Option 1

12"

12"

UNVENTED 32" LogMate

AIR FOR
COMBUSTION AND
VENTILATION

Continued

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 4). You can also
remove door into adjoining room (see op­tion 3, Figure 4). Follow the National Fuel

Gas Code NFPA 54/ANS Z223.1, Section

5.3, Air for Combustion and Ventilation for

required size of ventilation grills or ducts.

®

FIREBOX

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

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation
grills or ducts. You must provide two per­manent 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 spaces
include attics and crawl spaces.

IMPORTANT:

inlet or outlet air into attic if attic has a
thermostat-controlled power vent. Heated air
entering the attic will activate the power vent.

WARNING: Rework work-

Do not provide openings for

Figure 4 - Ventilation Air from Inside Building

Outlet
Air

Outlet
Air

Inlet
Air

Figure 5 - Ventilation Air from Outdoors

Inlet Air

Ventilated
Attic

To Attic

To

Crawl

Space

Ventilated

Crawl Space

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105604