(VENT-FREE) NATURAL OR L.P. (LIQUID PROPANE) GAS STOVE HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
“This appliance is intended for supplemental heating.”
“This heater shall not
bathroom.”
be installed in a bedroom or
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.
⎯ 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: The MA series vent-free gas log heater is
only approved for use in the CVF(*) series cast iron
stove models.
(*)Indicates Color Suffix Designation)
WARNING: Improper installation, adjustment,
alteration, service, or maintenance can cause injury or
property damage. Refer to this manual for correct
installation and operational procedures. For assistance
or additional information consult a qualified installer,
service agency, or the gas supplier.
WARNING: 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 Air for Combustion and Ventilation section on page 3 of this manual.
This appliance may be installed in an aftermarket*, permanently located, manufactured (mobile)
home, where not prohibited by state or 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
NEW BUCK CORPORATION WARNING: Only New Buck Corporation
P.O. BOX 69 approved blower assembly, part number
8000 HWY. 226 SOUTH MA CVF714, may be used with the Townsend II
SPRUCE PINE N.C. 28777 Revised 03/2003 unit only.
TABLE OF CONTENTS
SAFETY INFORMATION ........................................................................................... 1
AIR FOR COMBUSTION AND VENTILATION ................................................... 3
OPTIONAL BLOWER ASSEMBLY FOR (VENTLESS FIREBOX) TOWNSEND II
ONLY:
ID# DESCRIPTION
MA CVF714 BLOWER ASSEMBLY
VENT-FREE NATURAL OR L.P GAS STOVE HEATER
1
SAFETY
INFORMATION
WARNINGS
IMPORTANT: Read this
owner’s manual carefully and
completely before trying to
assemble, operate, or service this
heater. Improper use of this
heater can cause serious injury or
death from burns, fire, explosion,
electrical shock, and carbon
monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning:
Early signs of carbon monoxide
poisoning resemble the flu, with
headaches, dizziness, or nausea.
If you have these signs, the heater
may not be working properly.
Get fresh air at once! Have
heater serviced. Some people are
more affected by carbon
monoxide than others. These
include pregnant women, people
with heart or lung disease or
anemia, those under the influence
of alcohol, and those at high
altitudes.
Make certain you read and
understand all Warnings. Keep
this manual for reference. It is
your guide to safe and proper
operation of this heater.
WARNING: Any change to this
heater or its controls can be
dangerous.
WARNING: Do not allow fans
to blow directly into the stove.
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
heater.
Due to high temperatures, the
appliance should be located out of
traffic and away from furniture and
draperies.
Do not place clothing or other
flammable material on or near the
appliance. Never place any objects on
the heater.
Stove becomes very hot when running
heater. Keep children and adults away
from hot surfaces to avoid burns or
clothing ignition. Stove 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
heater. When using the handheld
remote accessory, keep selector
switch in the OFF position to prevent
children from turning on burners with
remote.
Keep the appliance area clear and free
from combustible materials, gasoline,
and other flammable vapors and
liquids.
1. 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.
2. If you smell gas
• shut off gas supply
• 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
3. This heater shall not be installed
in a bedroom or bathroom.
4. Do not use this stove as a wood
burning fireplace. Use only
models MA C100BATLP, MA
C100BATNAT, MA
CVFB200LP, or MA
CVFB200NAT series vent-free
gas log heater.
5. Do not add extra logs or
ornaments such as pine cones,
vermiculite, or rock wool. Using
these added items can cause
sooting.
6. During initial operation, slight
smoking could occur due to
heater burning manufacturing
residues.
7. To prevent the creation of soot,
follow the instructions in
“Cleaning and Maintenance”,
page 19.
8. Before using furniture polish,
wax, carpet cleaners, 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 or furniture.
9. This heater has an Oxygen
Depletion Sensing (ODS) safety
shutoff system. The ODS shuts
down the heater if not enough
fresh air is available. See “Air for
Combustion and Ventilation”,
pages 3 through 5. If heater keeps
shutting off, see “Troubleshooting”, pages 20 through 22.
10. Do not run heater
• where flammable liquids or vapors
are used or stored
• under dusty conditions
11. Do not use this stove to cook food
or burn paper or other objects.
12. Do not use heater if any part has
been exposed to or 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.
13. Do not operate heater if any log is
broken.
14. Turn heater off and let cool before
servicing. Only a qualified service
person should service and repair
heater.
15. Operating heater above elevations
of 4,500 feet could cause pilot
outage.
16. Do not place stove directly on
carpeting, vinyl tile, or any
combustible material other than
wood. The stove must set on a
metal or wood panel extending the
full width and depth of the
appliance.
PRODUCT
2
INDENTIFICATION
MODELS MA C100BATLP, MA C100BATNAT OR
MA CVFB200LP, MA CVFB200NAT MILLIVOLT LOG
HEATER UNITS WITH CVF100’s AND CVF200’s CAST
STOVE SERIES.
STOVE
BODY
STOVE DOOR
(SHOWN IN THE OPEN
POSITION)
OPTIONAL
REMOTE CONTROL
BRACKET
PIEZO IGNITOR
AUTO
OFF
MANUAL
PRESSURE ADJUSTMENT
(FLAME) KNOB
VALVE CONTROL
KNOB
FIGURE 1– TYPICAL STOVE CABINET MODEL
LOCAL CODES
Install and use heater 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 know as NFPA 54*.
*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 heater is clean burning. It requires
no outside venting. There is no heat
loss out a vent or up a chimney. Heat is
generated by realistic, dancing yellow
flames. This heater is designed for vent
-free operation. State and local codes
in some areas prohibit the use of ventfree heaters.
SAFETY PILOT
This heater has a pilot with an Oxygen
Depletion Sensing (ODS) safety
shutoff system. The ODS/pilot is a
required feature for vent-free room
heaters. The ODS/pilot shuts off the
heater if there is not enough fresh air.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This
system requires no matches, batteries,
or other sources to light heater.
3
AIR FOR
COMBUSTION AND
VENTILATION
WARNING: This heater shall
not be installed in a confined
space or unusually tight
construction unless provisions
are provided for ade-quate
combustion and ventilation air.
Read the following instructions
to ensure 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, fireplaces, clothes dryers,
and fuel burning appliances draw air from
the house to operate. You must provide
adequate fresh air for these appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from
National Fuel Gas Code, NFPA 54/
ANSI 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 5
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.
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
2
) or less with openings
m
gasketed or sealed and
b Weather stripping has been
added on openable windows
and doors and
c Caulking or sealants are
applied 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.
If your home meets all of the three
criteria above, you must provide
additional fresh air. See Ventilation Air From Outdoors, page 5.
If your home does not meet all of
the three criteria above, proceed to
Determining Fresh-Air Flow For
Heater Location, page 4.
-11
kg per pa-sec-
Confined and Unconfined Space
The National Fuel Gas Code, ANSI
Z223.1 defines a confined space as a
space whose volume is less than 50
cubic feet per 1,000 Btu per hour (4.8
3
per kw) of the aggregate input
m
rating of all appliances installed in that
space; and unconfined space as a
space whose volume is not less than 50
cubic feet per 1,000 Btu per hour (4.8
3
per kw) of the aggregate input
m
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 heater 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.
Installation and repair should be done
by a qualified service person. The
appliance should be inspected before
each use and at least annually by a
professional service person. More
frequent cleaning may be required due
to excessive lint from carpeting,
bedding material, pet hair, etc. It is
imperative that control compartments,
burners and circulating air
passageways of the appliance be kept
clean.
WARNING: Any change to
this heater or its controls can be
dangerous.
AIR FOR
4
COMBUSTION AND
VENTILATION
Continued
DETERMINING FRESH-AIR FLOW FOR HEATER 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 heater 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: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. Ft. (volume of space)
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: 2560 cu. Ft. (volume of space) / 50 cu. Ft. = 51,200 (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 Example:
Vented gas heater ________________ Btu/Hr Gas water heater 40,000 Btu/Hr
Gas fireplace logs ________________ Btu/Hr Vent-free heater + 30,000 Btu/Hr
Other gas appliances* + ________________ Btu/Hr Total = 70,000 Btu/Hr
Total = ________________ 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: 51,200 Btu/Hr (maximum the space can support)
70,000 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 Ventilation Air From Inside Building, page 5.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 5.
C. Install a lower Btu/Hr heater, 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.
WARNING: If 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 adequate combustion and
ventilation air by one of the methods described in the National Fuel Gas Code, ANSI 223.1, Section 5.3 or
applicable local codes. NOTE: ANSI 223.1 is also known as NFPA 54.
5
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 2). You can also remove door
into adjoining room (See Option 3,
Figure 2). Follow the National Fuel
Gas Code, NFPA 54/ANSI Z223.1,
Section 5.3, Air for Combustion and
Ventilation for required size of
ventilation grills or ducts.
WARNING: Rework worksheet, 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.
Follow the National Fuel Gas Code,
NFPA 54/ANSI Z223.1, 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 thermostatcontrolled power vent. Heated air
entering the attic will activate the
power vent.
Ventilation
Grills
Into Adjoining
Room,
Option 1
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
12”
12"
FIGURE 2 - VENTILATION AIR FROM INSIDE BUILDING
OUTLET AIR
OUTLET
AIR
INLET
AIR
INLET AIR
VENTILATED
ATTIC
VENTILATED
CRAWL SPACE
FIGURE 3 - VENTILATION AIR FROM OUTDOORS
TO ATTIC
TO
CRAWL
SPACE
INSTALLATION
6
NOTICE:This heater is intended
for use as supplemental heat. Use this
heater along with your primary
heating system. Do not install this
heater as your primary heat source. Do
not run ceiling fan while heater is
running. In the event of a power
outage, you can use this heater as your
primary heat source.
WARNING: A qualified service
person must install heater. Follow
all local codes.
WARNING: Never install the
heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objects are less than 48 inches
from the front, top, or sides of
the heater
• in high traffic areas
• in windy or drafty areas
CAUTION: This heater creates
warm air currents. These currents
move heat to wall surfaces next to
heater. Installing heater next to vinyl
or cloth wall coverings or operating
heater where impurities (such as
tobacco smoke, aromatic candles,
cleaning fluids, oil or kerosene lamps,
etc.) in the air exist, may discolor
walls.
IMPORTANT: Vent-free heaters
add moisture to the air. Although this
is beneficial, installing heater in rooms
without enough ventilation air may
cause mildew to form from too much
moisture. See Air for Combustion and Ventilation, pages 4 through 5.
Maintain adequate clearances for
accessibility for the purpose of
servicing and proper operation.
GAS CONNECTION
Check gas type. Use only the type of
gas indicated on the valve rating
plate. If the type of gas listed on the
plate is not your type of gas
supply,DO NOT INSTALL.
Contact
your dealer for proper model.
Always use an external regulator for
all LP heaters to reduce the supply
tank pressure to a maximum of 13"
W.C. This is in addition to the
regulator furnished with the heater.
Warning: Connection directly to an
unregulated LP tank can cause an
explosion.
The normal gas connection is 3/8"
NPT made at the right side facing the
log set. If a left side connection is
desired, the connecting pipe may be
routed under the rear of the burner
base to terminate at the right hand
side for connection to the inlet of the
valve.
NOTE: The connecting pipe must be
internally treated for protection from
sulfur compounds if copper tubing is
used for natural gas.
Test for leaks using a solution of soap
and water after completing the
connection. DO NOT USE OPEN
FLAME.
CLEARANCES TO
COMBUSTIBLES
(Vent-Free Operation Only)
WARNING:
minimum clearances. If you can,
provide greater clearances from
floor, ceiling, and adjoining side
and back walls.
Carefully follow the instructions
below. This stove is a freestanding
unit designed to set directly on the
floor. Do not place stove directly on
carpeting, vinyl tile, or any
combustible material other than
wood. The stove must set on a metal
or wood panel extending the full
width and depth of the appliance.
Maintain the
IMPORTANT: You must maintain
minimum wall and ceiling clearances
during installation. The minimum
clearances are shown in Figure 4.
Measure from outermost point of stove
top.
Minimum Wall and Ceiling
Clearances (See Figure 4)
A. Clearances from outermost
point of stove top to any
combustible side wall should
not be less than 4 inches.
B. Clearances from outermost
point of stove top to any
combustible back wall should
not be less than 4 inches
(Includes Corner Installations).
C. Clearances from the stove top
to the ceiling should not be less
than 48 inches.
FRONT VIEW
4"
MINIMUM
SIDE
WALL
TOP VIEW
SIDE
WALL
CORNER
4"
MINIMUM
4" MINIMUM
WALL
4" MINIMUM
CEILING
48" MINIMUM
BACK WALL
4" MINIMUM
4"
MINIMUM
SIDE
WALL
SIDE
WALL
WALL
FIGURE 4 - MINIMUM CLEARANCES
TO WALLS AND CEILING
7
INSTALLATION
Continued
STOVE CAVITY ASSEMBLY
1. Lift off corrugated box enclosing
stove body crating.
2. Remove all screws fastening the
wood frame enclosure. Spread
wood frame open and lift away
from plastic-bagged stove body.
The bottom pieces of pallet wood
will remain bolted to the stove
body.
3. Remove plastic bag from stove
body.
4. Remove back panel from stove, if
equipped (See Figure 5). Use an
adjustable wrench or a 10 mm
socket. Remove six (6) bolts and
washers. Keep bolts and washers
to reattach back panel later.
5. Remove all contents from inside
stove cavity. Contents include:
(4) - Legs (includes leg leveler
bolts)
(1) - Bottom door
(3) - Top grates
(1) - Hardware kit bag with
fasteners
6. Carefully lay stove body on back
to attach bottom components to
stove body (See Figure 6). Rest
stove on drop cloth or blanket to
avoid scratching stove edges.
7. Remove remaining pallet wood
attached to bottom of stove body
(See Figure 6). Use an adjustable
wrench to remove bolts.
CAUTION:Cast Iron is brittle.
Do not over-tighten bolts or
screws during assembly.
8.
Fasten each leg to stove with four
(4) M8 x 1.25—20 mm bolts. Use
a flat washer and lock washer with
each bolt. Tighten bolts into
threaded holes on stove body (See
Figures 7 and 8). Use an adjustable
wrench or a 12mm socket.
FIGURE 5 - REMOVING BACK PANEL
NOTE: CVF200’s series are
not equipped with a back panel.
FRONT OF
STOVE UNIT
DROP CLOTH/
BLANKET
DOOR HINGE STEP
BOLT HOLE
REMOVE PALLET
BOLTED TO
STOVE BOTTOM
FIGURE 6 - LAYING DOWN STOVE ON SIDE
FRONT
LEG
HOLE
BOLT
BACK STOVE
PANEL
TOP OF
STOVE
UNIT
DOOR CATCH BOLT
WITH ADJUSTABLE
HEX NUTS HOLE
LEG
HOLE
BOTTOM OF
STOVE UNIT
LEG
HOLE
LEG
HOLE
FIGURE 7 - LOCATING THREADED HOLES FOR STOVE BOTTOM,LEGS
8
INSTALLATION
Continued
9. Attach stove door by inserting
step bolt through door hinge
pivot hole and into threaded hole
in stove body (See Figure 9 and
10 on page 8). Use an adjustable
wrench or a 12mm socket to
fasten step bolt. Tighten step bolt
until snug. Make sure door
moves freely.
10. Install door catch bolt (M8 x 1.25
– 55mm with two M8 hex nuts)
into threaded hole on stove body
(See Figure 10, page 8). Use an
adjustable wrench or a 12mm
socket. The catch bolt has two
hex nuts attached to it. The top
nut is a bolt stop and the bottom
nut is for door leveling
adjustment.
STOVE DOOR
11. Check general catch bolt
alignment with door claw. Make
final adjustment and door leveling
after stove is in normal standing
position.
12. Carefully lift stove back up on its
four attached legs.
13. Set top grate into stove top.
14. If available, install gas log heater
inside stove cavity before
installing the back panel (See
Installing Gas Log Heater Into
Stove, page 9).
15. Fasten back panel to stove with
six (6) M6 x 1—20mm bolts and
washers. Make sure product
identification label is located on
the outside in lower left hand
corner.
STOVE DOOR
WASHERS
BOLTS
BOTTOM OF
STOVE UNIT
FIGURE 8 - ATTACHING STOVE LEGS
NOTE: IF YOUR CASTING HAS A
DROP BOTTOM– DO NOT INSTALL–
DISCARD THE BOTTOM.
DOOR
DOOR CLAW
FIGURE 10 - CATCH BOLT AND DOOR CLAW ORIENTATION
THREADED
HOLE
DOOR
HINGE
STEP
BOLT
BOLT
SHOULDER
FIGURE 9 - ATTACHING STOVE DOOR
BOLT STOP
ADJUSTING NUT
CATCH BOLT
DOOR
HINGE
STEP
BOLT
STOVE BOTTOM
BOLT
SHOULDER
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