Astria Fireplaces Blaze&Glow18MP User manual

Installation and Operation Instructions
Unvented (Vent-Free) Gas Log Heater
Models
PFS
®
US
Report No. F09-100
Blaze&Glow18MN Blaze&Glow18MP Blaze&Glow24MN Blaze&Glow24MP
P/N 126835-01 REV. E 11/2019
For use with log sets
AndesMtn18
AndesMtn24
AndesMtn30
AndesMtn36
BisonMtn18
BisonMtn24
BisonMtn30
RedWoodM18
RedWoodM24
RedWoodM30
P126835-01
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
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.
WARNING: This appliance is for installation only in a solid-fuel burning masonry or UL127 factory-built fireplace
or in a listed ventless firebox enclosure. It is design-certified for these installations in accordance with ANSI
Z21.11.2. Exception: DO NOT install this appliance in a factory-built fireplace that includes instructions stating
it has not been tested or should not be used with unvented gas logs.
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 6 of this manual.
WARNING: If the information in this manual is not followed exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
– 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.

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TABLE OF CONTENTS
Safety............................................................................ 2
Product Identification.................................................... 5
Local Codes .................................................................. 5
Unpacking..................................................................... 5
Product Features........................................................... 6
Air For Combustion and Ventilation............................... 6
Installation .................................................................... 9
Operation .................................................................... 25
Inspecting Burners...................................................... 27
Cleaning and Maintenance .......................................... 28
Wiring Diagram........................................................... 29
Troubleshooting .......................................................... 30
Specifications.............................................................. 34
Blaze&Glow Log Sets.................................................. 34
Replacement Parts...................................................... 34
Service Hints............................................................... 34
Technical Service ........................................................ 34
Parts ........................................................................... 35
Accessories................................................................. 41
Warranty ..................................................................... 43
SAFETY
IMPORTANT:Readthisowner’smanual
carefully and completely before trying
to assemble, operate or service this
fireplace.Improperuseofthisfireplace
can cause serious injury or death from
burns,fire,explosion,electricalshock
and carbon monoxide poisoning.
Any safety screen, guard, or barrier re-
moved for servicing an appliance must
be replace prior to operating the heater.
The firescreen or guard designed for this
unvented appliance must be installed
prior to operation.
WARNING: FIRE, EXPLOSION, AND
ASPHYXIATION HAZARD
Improper adjustment, alteration, service,
maintenance, or installation of this heater
or its controls can cause death or serious
injury.
Read and follow instructions and pre-
cautions in User’s Information Manual
provided with this heater.
WARNING: This appliance is for
installation only in a solid-fuel burning
masonry or UL127 factory-built fireplace
or in a listed ventless firebox enclosure. It
is design-certified for these installations in
accordance with ANSI Z21.11.2. Exception:
DO NOT install this appliance in a factory-
built fireplace that includes instructions
stating it has not been tested or should not
be used with unvented gas logs.
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 6 of this manual.
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
WARNING: This product can expose you
to chemicals including Carbon Black, which
is known to the State of California to cause
cancer, and Carbon Monoxide, which is
knowntotheStateofCaliforniatocausebirth
defectsorotherreproductiveharm.Formore
informationgotowww.P65Warnings.ca.gov
WARNING: Vent-free products are pro-
hibited for bedroom and bathroom installa-
tionintheCommonwealthofMassachusetts.

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126835-01E 3
SAFETY
Continued
WARNING: Any change to this
heateroritscontrolscanbedangerous.
WARNING: Do not use a blower
insert, heat exchanger insert or other
accessory not approved for use with
this heater.
Carbon Monoxide Poisoning: Early signs of carbon
monoxide poisoning resemble the flu, with head-
aches, dizziness or nausea. If you have these signs,
the fireplace may not be working properly. Get fresh
air at once! Have fireplace 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.
Natural and Propane/LP gases are odorless. An
odor-making agent is added to these gases. The
odor helps you detect a gas leak. However, the odor
added to the gas can fade. Gas may be present even
though no odor exists.
Make certain you read and understand all warnings.
Keep this manual for reference. It is your guide to
safe and proper operation of this fireplace.
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.
Heater base assembly becomes very hot
when running heater.
Children and adults should be alerted to
the hazard of high surface temperature
and should stay away to avoid burns or
clothing ignition. Heater will remain hot
for a time after shutdown. Allow surface
to cool before touching.
Young children should be carefully super-
vised when they are in the same room with
the appliance. When using the hand-held
remote accessory, keep selector switch in
the OFF position to prevent children from
turning on burners with remote.
You must operate this heater with the
fireplace screen and hood in place before
running heater. The fireplace screen shall
have openings for introduction of combus-
tion air.
Keeptheapplianceareaclearandfreefrom
combustiblematerials,gasolineandother
flammable vapors and liquids.
WARNING: Do not allow fans to blow
directly into the fireplace. 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 place log scraps or
volcanic stone on burner.
DANGER:Carbonmonoxidepoisoning
may lead to death!
Solid-fuels shall not be burned in a fire-
place in which an unvented room heater
is installed.
Installation and repair should be done
by a qualified service person. The ap-
pliance should be inspected before use
and at least annually by a professional
service person. More frequent cleaning
may be required due to excessive lint
from carpeting, bedding material, etc. It
is imperative that control compartments,
burners, and circulating air passageways
of the appliance be kept clean.

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SAFETY
Continued
2. Do not place propane/LP supply tank(s) inside
any structure. Locate propane/LP supply
tank(s) outdoors (propane/LP units only).
3. 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
4. This heater shall not be installed in a bedroom
or bathroom, unless installed as a vented appli-
ance. See Installing Damper Clamp Accessory
for Vented Operation, Page 12. This gas log set
may not be installed as a vented appliance in a
bedroom or bathroom in the Commonwealth of
Massachusetts.
5. WARNING: Before installing in a solid fuel
burning fireplace, the chimney flue and
firebox must be cleaned of soot, creosote,
ashes and loose paint by a qualified chimney
cleaner. Creosote will ignite if highly heated.
A dirty chimney flue may create and distribute
soot within the house. Inspect chimney flue for
damage. If damaged, repair flue and firebox
before operating heater.
6. Do not burn solid-fuel in a fireplace in which
an unvented appliance is installed.
7. If fireplace has glass doors, never operate this
heater with glass doors closed. Any
glass doors
shall be fully opened when the appliance is in
operation. If you operate heater with doors
closed, heat buildup inside fireplace will cause
glass to burst. Make sure there are no obstruc-
tions across openings of fireplace.
8. To prevent the creation of soot, follow the in-
structions in Cleaning and Maintenance, Page
28.
9. Before using furniture polish, wax, carpet cleaner
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 and furniture.
10. This heater needs fresh, outside air ventilation
to run properly. This heater has an Oxygen De-
pletion Sensing (ODS) safety shutoff system.
The ODS shuts down the heater if enough fresh
air is not available. See Air for Combustion and
Ventilation, Page 6. If heater keeps shutting off,
see Troubleshooting, Page 32.
11. Do not run heater
• where flammable liquids or vapors are used
or stored
• under dusty conditions
12. Do not use this heater to cook food or burn
paper or other objects.
13. Do not use this room heater if any part 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.
14. Do not operate heater if any log is broken. Do
not operate heater if a log is chipped (dime-
sized or larger).
15. Turn heater off and let cool before servicing,
installing or repairing. Make sure the selector
switch is in the OFF position. Only a qualified
service person should install, service or repair
heater.
16. Make sure the selector switch is in the OFF
position when you are away from home for
long periods of time.
17. Remote-ready heaters must not be connected
to any external electrical source.
18. Operating heater above elevations of 4,500 feet
may cause pilot outage.
19. To prevent performance problems, do not
use propane/LP fuel tank of less than 100 lb.
capacity (propane/LP units only).
20. Provide adequate clearances around air open-
ings.
21. When installing as a vented appliance in a manu-
factured home or mobile home, the installation
must conform with the Manufactured Home
Construction and Safety Standard, Title 24 CFR,
Part 3280, or when applicable, with Manufacture
Home Installations Standard, ANSI/NCBCS
A225.1/NFPZ 501A.
22. This log heater is designed to be smokeless. If
logs ever appear to smoke, turn off heater and
call a qualified service person.
NOTE: During initial operation, slight smoking
could occur due to log curing and heater burning
manufacturing residues.
1. WARNING: 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.

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126835-01E 5
Log Set
Control
Knob
Base Assembly
Igniter
Rear Burner
Flame Adjustment
Knob
Left
Side
Front
Right
Side
LOCAL CODES NOTE: Do not pick up appliance base assembly
by burners. This could damage the appliance.
Always handle base assembly by grate.
2. Remove all protective packaging applied to logs
and appliance for shipment.
3. Check appliance for any shipping damage. If
appliance is damaged, promptly inform dealer
where you purchased the appliance.
Install and use appliance with care. The installation
must conform with local codes or in the absence
of local codes, to the latest edition of The National
Fuel Gas Code, ANSI Z223.1/NFPA54*.
*Available from:
American National Standards Institute, Inc.
25 West 43rd Street, 4th floor
New York, NY 10036
National Fire Protection Association, Inc.
1 Batterymarch Park
Quincy, MA 02169-7471
UNPACKING
1. Remove logs and appliance base assembly
from carton(s).
CAUTION: Do not remove the data
plates from the grate assembly. The
data plates contain important war-
ranty and safety information.
COMMONWEALTH OF MASSACHUSETTS REQUIREMENTS
These appliances are approved for installation in the US state of Massachusetts if the following ad-
ditional requirements are met:
• Un-vented Room Heaters shall be installed in accordance with 527 CMR 30.
• Installation and repair must be done by a plumber or gas fitter licensed in the Commonwealth of
Massachusetts.
• The flexible gas line connector used shall not exceed 36 inches (92 centimeters) in length.
• The individual manual shut-off must be a T-handle type valve.
• Unvented appliances may NOT be installed in bedrooms or bathrooms.
• A working smoke detector must be installed in the area where vent-free appliances are installed.
Seller of unvented propane or natural gas-fired supplemental room heaters shall provide to each
purchaser a copy of 527 CMR 30 upon sale of the unit.
PRODUCT IDENTIFICATION
Figure 1 - Product Identification

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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 both realistic flames
and glowing coals. This heater is designed for vent-
free operation with flue damper closed. It has been
tested and approved to ANSI Z21.11.2 standard for
unvented heaters. State and local codes in some
areas prohibit the use of unvented appliances. This
heater may also be operated as a vented decorative
(ANSI Z21.60) product by opening the flue damper.
SAFETY DEVICE
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 heat-
ers. The ODS/pilot shuts off the heater if there is
not enough fresh air.
ELECTRONIC IGNITION SYSTEM
This heater has an electronic igniter to light heater
fuel supply.
AIR FOR COMBUSTION AND VENTILATION
Today’s homes are built more energy efficient than
ever. New materials, increased insulation and new
construction methods help reduce heat loss in
homes. Homeowners apply 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, some fireplaces, clothes dryers and
some fuel-burning appliances draw air from the
house to operate. You must provide adequate fresh
air for these appliances. This will ensure proper
venting of vented fuel-burning appliances.
PROVIDING ADEQUATE VENTILATION
The following are excerpts from National Fuel Gas
Code, ANSI Z223.1/NFPA 54, Air for Combustion
and Ventilation.
All spaces in homes fall into one of the three fol-
lowing ventilation classifications:
WARNING: This heater shall not
be installed in a room or space un-
less the required volume of indoor
combustion air is provided by the
method described in the National
Fuel Gas Code, ANSI Z223.1/NFPA
54, the International Fuel Gas Code,
or applicable local codes. Read the
following instructions to ensure
properfreshairforthisandotherfuel-
burning appliances in your home.
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on Pages 6-8 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 con-
struction 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-m
2
) or less with openings
gasketed or sealed and
b. weather stripping has been added on open-
able 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 three criteria above, you
must provide additional fresh air. See Ventilation
Air From Outdoors, Page 8.
If your home does not meet all three criteria
above, proceed to Determining Fresh-Air Flow
For Heater Location, below.
Confined and Unconfined Space
The National Fuel Gas Code, ANSI Z223.1/ NFPA54
allows two methods for determining whether the
space in which the heater is being

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126835-01E 7
AIR FOR COMBUSTION AND VENTILATION
Continued
installed is confined or unconfined space. The
standard method defines a confined space as a
space whose volume is less than 50 cubic feet per
1,000 Btu/hr (4.8 m3per 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/hr (4.8
m3per kw) of the aggregate input rating of all
appliances installed in that space. Rooms com-
municating directly with the space in which the
appliances are installed*, through openings not
furnished with doors, are considered a part of the
unconfined space.
Where the air infiltration rate of a structure is
known, the Known Air Infiltration Rate Method may
be used. Follow The National Fuel Gas Code, ANSI
Z223.1/NFPA 54 to use this method to determine
if the space is confined or unconfined.
* Adjoining rooms are communicating only if there
are doorless passageways or ventilation grills
between them.
DETERMINING FRESH-AIR FLOW FOR
HEATER LOCATION
Determining if You Have a Confined or
Unconfined Space Using the Standard Method
Use this work sheet to determine if you have a
confined or unconfined space.
Space: Includes the room in which you will install
fireplace 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 sup-
plied with grills or openings, 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: 2560 cu. ft. (volume of space) x 20 =
51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
Vent-free fireplace ____________ 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 combustion air from the outdoors and
vents to the outdoors.
Example:
Gas water heater ____________ Btu/Hr
Vent-free fireplace +___________ Btu/Hr
Total =___________ Btu/Hr
4.
Compare the maximum Btu/Hr the space can support
with the actual amount of Btu/Hr used.
_________Btu/Hr (maximum can support)
_________Btu/Hr (actual amount used)
Example:51,200 Btu/Hr (maximum the space
can support)
73,000 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 adjoin-
ing room. If the extra space provides an uncon-
fined space, remove door to adjoining room or add
ventilation grills between rooms. See Ventilation
Air From Inside Building, Page 8.
B. Vent room directly to the outdoors. See Ventilation
Air From Outdoors, Page 8.
C. Install a lower Btu/Hr fireplace, 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.
40,000
33,000
73,000

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AIR FOR COMBUSTION AND VENTILATION
Continued
Figure 3 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining un-
confined 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, ANSI
Z223.1/NFPA 54, Air for Combustion and Ventila-
tion for required size of ventilation grills or ducts.
Figure 2 - Ventilation Air from Inside Building
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills Into
Adjoining
Room,
Option 1
12"
12"
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills
or ducts. You must provide two permanent open-
ings: 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, ANSI Z223.1/NFPA 54, 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.
WARNING: If the area in which
the heater may be operated does not
meet the required volume for indoor
combustion air, combustion and
ventilation air shall be provided by
one of the methods described in the
NationalFuelGasCode,ANSIZ223.1/
NFPA 54, the International Fuel Gas
Code, or applicable local codes.

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126835-01E 9
INSTALLATION
NOTICE: This appliance is intended
for supplemental heating. Use this
heater along with your primary heat-
ing system. Do not install this heater
as your primary heat source. If you
have a central heating system, you
may run system’s circulating blower
while using heater. This will help cir-
culate the heat throughout the house.
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.
NOTICE:Stateorlocal codes mayonly
allow operation of this appliance in a
ventedconfiguration.Checkyourstate
or local codes.
WARNING: Before installing in a
solid fuel burning fireplace, the chim-
ney flue and firebox must be cleaned
of soot, creosote, ashes and loose
paint by a qualified chimney cleaner.
Creosote will ignite if highly heated.
A dirty chimney flue may create and
distribute soot within the house.
Inspect chimney and firebox flue for
damage. If damaged, repair flue and
firebox before operating heater.
WARNING:Sealanyfreshairvents
orashclean-outdoorslocatedonfloor
or wall of fireplace. If not, drafting
may cause pilot outage or sooting.
Use a heat-resistant sealant. Do not
seal chimney flue damper.
WARNING: Never install the
heater
• in a bedroom or bathroom unless
installed as a vented appliance,
see Page 12
• in a recreational vehicle
• where curtains, furniture, cloth-
ing or other flammable objects
are less than 36" from the front
and 42" from top heater, For side
clearances see
Figure 4, Page 10
• 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, but
not limited to, tobacco smoke, aro-
matic candles, cleaning fluids, oil or
kerosene lamps, etc.) in the air exist,
may discolor walls or cause odors.
Any outside air ducts and/or ash
dumps in the fireplace shall be per-
manently closed at time of appliance
installation.
IMPORTANT:Unvented appliances 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, Page 6.
WARNING:Makesuretheselector
switch is in the OFF position before
installing heater.

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INSTALLATION
Continued
Figure 4 - Minimum Clearance for Combustible
to Wall
*Minimum 16" from Side Wall
*
Example
Carefully follow these instructions. This will ensure
safe installation into a masonry, UL127-listed
manufactured fireplace or listed vent-free firebox.
Minimum Clearances For Side Combustible
Material, Side Wall and Ceiling
A. Clearances from the side of the fireplace cabinet
to any combustible 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).
NOTE: When installing your gas logs into a
manufactured firebox, follow firebox manufac-
turer’s instructions for minimum clearances to
combustible materials.
B. Clearances from the top of the fireplace opening
to the ceiling should not be less than 42".
LOG SIZING REQUIREMENTS
Log Set
Model No.
Minimum Firebox Size
Height Depth Front
Width
Rear*
Width
BisonMtn18 17'' 14.5'' 26'' 20''
BisonMtn24 17'' 14.5'' 29'' 22''
BisonMtn30 21'' 14.5'' 32'' 22''
AndesMtn18 17" 13.5" 20" 14"
AndesMtn24 17" 13.5" 26" 18"
AndesMtn30 21'' 13.5'' 32'' 22''
AndesMtn36 21'' 13.5'' 38'' 27.5''
RedWoodM18 17'' 13.5'' 20'' 14''
RedWoodM24 17'' 13.5'' 26'' 18''
RedWoodM30 21'' 13.5'' 32'' 22''
WARNING: This appliance is
equipped for either natural gas or
propane/LP gas but not both. Gas type
is indicated on the rating plate. Field
conversion is not permitted.
NOTICE: Manual control heaters may
be used as a vented product. If so, you
must always run heater with chimney
flue damper open. If running heater
with damper open, noncombustible
material above fireplace opening is
not needed. Go to Installing Damper
Clamp Accessory for Vented Opera-
tion, Page 12.
WARNING:Maintaintheminimum
clearances.Ifyoucan,providegreater
clearances from floor, ceiling and
adjoining wall.
Minimum Fireplace Clearance to
Combustible Materials
Side Wall 16", Ceiling 42", Floor 5",
Front 36"
CHECK GAS TYPE
Use the correct type of gas (natural or propane/LP).
If your gas supply is not the correct gas type, do not
install appliance. Call the dealer where you purchased
the appliance for proper type appliance.
INSTALLATION AND CLEARANCES FOR
VENT-FREE OPERATION
Maintain adequate clearances for accessibility for purposes
of servicing and proper operation.

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126835-01E 11
INSTALLATION
Continued
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
Noncombustible
Material Distance
(A)
Requirements for Safe
Installation
1 2" or more Noncombustible material
OK.
Between 8" and 12"
24", 30" or 36" Models:
Install fireplace hood
accessory (GA6050 - see
Accessories,Page 41). 18"
Model: Noncombustible
material OK.
Less than 8" Noncombustible material
must be extended to at
least 8". See Between 8"
and 12", above. If you can-
not extend material, you
must operate heater with
flue damper open.
MINIMUM NONCOMBUSTIBLE MATERIAL
CLEARANCES
If Not Using Mantel
NOTE: If using a mantel proceed to If Using Mantel.
If not using a mantel, follow the information on
this Page.
You must have noncombustible material(s) above
the fireplace opening. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least
1/2" thick. With sheet metal, you must have non-
combustible material behind it. Noncombustible
material must extend at least 8" up (for all models).
If noncombustible material is less than 12", you
must install the fireplace hood accessory (24", 30"
and 36" Models Only). See Figure 5 for minimum
clearances.
If Using Mantel
You must have noncombustible material(s) above
the fireplace opening. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least
1/2" thick. With sheet metal, you must have non-
combustible material behind it. Noncombustible
material must extend at least 8" up (for all models).
If noncombustible material is less than 12", you
must install the fireplace hood accessory (24",
30" and 36" Models Only). Even if noncombustible
material is more than 12", you may need the hood
accessory to deflect heat away from your mantel
shelf. See Figures 5 and 6 and Figure 7, Page 12,
for minimum clearances.
IMPORTANT:If you cannot meet these minimum
clearances, you must operate heater with chimney
flue damper open. Go to Installing Damper Clamp
Accessory for Vented Operation, Page 12.
MANTEL CLEARANCES
In addition to meeting noncombustible material
clearances, you must also meet required clearances
between fireplace opening and mantel shelf. If you
do not meet the clearances listed below, you will
need a hood.
Determining Minimum Mantel Clearance
If you meet minimum clearance between mantel
shelf and top of fireplace opening, a hood is not
required (see Figure 6).
Figure 6 - Minimum Mantel Clearances Without
Using Hood
Heat Resistant
Material
(A)
Minimum
Noncombustible
Material
Minimum
Noncombustible
Material Height
Distances to
Underside of
Mantel
Top of
Fireplace
Opening
Underside of
Mantel Shelf
12"
8"
(A)
18"
14"
20"
17"
22"
19"
24"
20"
All minimum
distances are
in inches
Log Set
24"/30"/36"
Models
18" Model
2 1/2"
6"
8"
10"
Mantel Shelf
Minimum clearance requirements include any projections such
as shelves, window sills, mantels, etc. above the appliance.

Astria.us.com 126835-01E12
INSTALLATION
Continued
Figure 8 - Minimum Fireplace Clearances If
Installed at Floor Level
Figure 7 - Minimum Mantel Clearances When
Using Hood
FLOOR CLEARANCES
A. If installing appliance on the floor level, you
must maintain the minimum distance of 14"
to combustibles (see Figure 8).
B. If combustible materials are less than 14" to the
fireplace, you must install appliance at least 5"
above the top surface of combustible flooring
including tile and carpet (see Figure 9).
Figure 9 - Minimum Fireplace Clearances
Above Combustible Flooring
Minimum
Noncombustible
Material
8"
Min.
12" 15" 18"
All minimum
distances are
in inches
Log Sets
18", 24",
30" & 36"
Models
20"
2 1/2"
6"
8"
10"
12"
Distances to
Underside of
Mantel
Hood
(GA6050)
Top of
Fireplace
Opening
Underside of
Mantel Shelf
Mantel Shelf
INSTALLING DAMPER CLAMP ACCESSORY
FOR VENTED OPERATION
NOTE: When used as a vented heater, appliance
must be installed only in a solid-fuel burning
fireplace with a working flue and constructed of
noncombustible material.
For Massachusetts Residents Only: Installation
of this gas log set as a vented appliance in the
Commonwealth of Massachusetts requires the
damper be permanently removed or welded in the
fully open position.
If your heater is a manually-controlled model, you
may use this heater as a vented product. There
are three reasons for operating your heater in the
vented mode.
1. The fireplace does not meet the clearance to
combustibles requirements for vent-free opera-
tion.
14"
Min.
Combustible
Material
Noncombustible Material
Hearth
5"
Min.
Combustible
Material
NOTICE: Surface temperatures of ad-
jacent 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. Fol-
low all minimum clearances shown
in this manual.
Notice: If your installation does not
meettheminimumclearancesshown,
you must do one of the following:
• operatethelogsonlywith the flue
damper open
• raise the mantel to an acceptable
height
• remove the mantel
Determining Minimum Mantel Clearance When
Using a Hood
If minimum clearances in Figure 6, Page 11, are not
met, you must have a hood. When using a hood there
are still certain minimum mantel clearances required.
Follow minimum clearances shown in Figure 7, when
using hood.

Astria.us.com
126835-01E 13
INSTALLATION
Continued
Area of Various Standard Round Flues
Diameter Area
5" 20 sq. inches
6" 29 sq. inches
7" 39 sq. inches
8" 51 sq. inches
Chimney Height
Minimum Permanent Flue
Opening
6' to 15' 39 sq. inches
15' to 30' 29 sq. inches
Damper
Damper
Clamp
Damper
Damper
Clamp
Damper
Figure 10 - Attaching Damper Clamp
Manufactured Fireplace
Masonry Fireplace
2. State or local codes do not permit vent-free
operation.
3. You prefer vented operation.
If reasons number 1 or 2 apply to you, you must
permanently open chimney flue damper. You must
install the damper clamp accessory (to order, see
Accessories, Page 41). This will ensure vented
operation (see Figure 10). The damper clamp will
keep damper open. Installation instructions are
included with clamp accessory.
See chart below for minimum permanent flue
opening you must provide. Attach damper clamp
so the minimum permanent flue opening will be
maintained at all times.
WARNING: You must secure this
heater to fireplace floor. If not, heater
will move when you adjust controls.
Moving heater may cause a gas leak.
CAUTION: Do not pick up heater
base assembly by burners. This could
damage heater. Only handle base
assembly by grates.
INSTALLING HEATER BASE ASSEMBLY
WARNING:Ifinstallinginasunken
fireplace, special care is needed. You
must raise the fireplace floor to allow
access to heater control panel. This
will ensure adequate air flow and
guard against sooting and controls
being damaged. Raise fireplace floor
with noncombustible material. Make
sure material is secure.
IMPORTANT:Make sure the heater burners are
level. If heater is not level, heater will not work
properly.
Installation Items Needed
• hardware package (provided with heater)
• approved flexible gas hose and fittings (if allowed
by local codes)
• sealant (resistant to propane/LP gas, not pro-
vided)
• electric drill with 3/16” masonry drill bit
NOTE: Install optional Receiver and Hand-Held
Remote Control Kit (see Accessories, Page 42)
before installing gas log heater. See installation
instructions included with the kit.

Astria.us.com 126835-01E14
INSTALLATION
Continued
1. Apply pipe joint sealant lightly to male threads
of gas fitting (provided). Connect approved
flexible gas hose to inlet side of gas control
(see Figure 11).
IMPORTANT:Hold gas regulator with wrench
when connecting flexible gas hose.
2. Position heater base assembly in fire-
place.
3. Mark screw locations through holes in front
panel of base (see Figure 12). If installing in a
brick-bottom fireplace, mark screw locations
in mortar joint of bricks.
4. Remove heater base from fireplace.
5. Drill holes at marked locations using 3/16" drill
bit.
6. Attach base, through holes in front panel of
base, to fireplace floor using masonry screws
provided in hardware package (see Figure 12).
7. Connect to gas supply. See Connecting To Gas
Supply.
Figure 11 - Attaching Flexible Gas Hose to
Heater Gas Regulator
Figure 12 - Attaching Base to Fireplace Floor
Masonry
Screw
Gas Control
Flexible Gas Hose
(if allowed by local
codes)
WARNING: This appliance re-
quires a 3/8" NPT (National Pipe
Thread) inlet connection to the pres-
sure regulator.
WARNING: A qualified service
person must connect heater to gas
supply. Follow all local codes.
CAUTION:Neverconnectpropane/
LP fireplace directly to the propane/
LP supply. This heater requires an
external regulator (not supplied).
Install the external regulator between
the heater and propane/LP supply.
CONNECTING TO GAS SUPPLY
Installation Items Needed
Before installing heater, make sure you have the
items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve
• test gauge connection
• sediment trap
• tee joint
• pipe wrench
• approved flexible gas line with gas connector (if
allowed by local codes)
WARNING: Never connect this
appliance to private (non-utility) gas
wells. This gas is commonly known
as wellhead gas and does not have
odorants and may have impurities,
andvariationsin BTUcontent.Theuse
of well-head gas will void the manu-
facturer’s warranty to this appliance.

Astria.us.com
126835-01E 15
Figure 13 - External Regulator With Vent
Pointing Down
Propane/LP
Supply Tank External
Regulator
with Vent
Pointing
Down
INSTALLATION
Continued
Installation must include an equipment shutoff
valve, union and plugged 1/8" NPT tap. Locate NPT
tap within reach for test gauge hook up. NPT tap
must be upstream from heater (see Figure 14).
IMPORTANT:Install equipment shutoff valve in
an accessible location. The equipment shutoff
valve is for turning on or shutting off the gas to
the appliance.
Check your building codes for any special require-
ments for locating equipment shutoff valve to
fireplaces.
**Minimum inlet pressure for purpose of input
adjustment.
Figure 14 - Gas Connection
Pipe Cap Tee
Nipple Joint
Gas
Control
3" Minimum
Sediment Trap
Approved Flexible Gas
Hose (if allowed by
local codes)
PROPANE/LP
From External
Regulator
(11" W.C.**
to 14" W.C.
Pressure)
NATURAL
From Gas
Meter
(5" W.C.**
to 10.5" W.C.
Pressure)
For propane/LP units, the installer must supply an
external regulator. The external regulator will reduce
incoming gas pressure. You must reduce incoming
gas pressure to between 11" and 14" of water. If
you do not reduce incoming gas pressure, heater
regulator damage could occur. Install external
regulator with the vent pointing down as shown in
Figure 13. Pointing the vent down protects it from
freezing rain or sleet.
CAUTION: Use only new, black
iron or steel pipe. Internally-tinned
copper tubing may be used in certain
areas. Check your local codes. Use
pipe of 1/2" diameter or greater to
allow proper gas volume to heater.
If pipe is too small, undue loss of
volume will occur.
Apply pipe joint sealant lightly to male NPT threads.
This will prevent excess sealant from going into
pipe. Excess sealant in pipe could result in clogged
heater valves.
WARNING: Use pipe joint sealant
that is resistant to liquid petroleum
(LP) gas.
We recommend that you install a sediment trap in
supply line as shown in Figure 14. Locate sediment
trap where it is within reach for cleaning. Install
in piping system between fuel supply and heater.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into
heater controls. If sediment trap is not installed
or is installed wrong, heater may not run properly.
CAUTION: Avoid damage to regu-
lator. Hold gas regulator with wrench
when connecting it to gas piping and/
or fittings.

Astria.us.com 126835-01E16
INSTALLATION
Continued
6. Reconnect heater and equipment shutoff valve to
gas supply. Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG
(3.5 kPa)
1. Close equipment shutoff valve (see Figure 15).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve
located on or near gas meter for natural gas
or using compressed air.
3. Check all joints from gas meter to equipment
shutoff valve for natural gas or propane/LP
supply to equipment shutoff valve for propane/
LP (see Figure 16 or 17). Apply noncorrosive
leak detection fluid to all joints. Bubbles forming
show a leak.
4. Correct all leaks at once.
Figure 15 - Equipment Shutoff Valve
Figure 16 - Checking Gas Joints (Propane/LP
Only)
Control Valve
Location
Propane/LP
Supply Tank
Equipment Shutoff
Valve
Open
Closed
Equipment
Shutoff Valve
Gas Meter
Figure 17 - Checking Gas Joints (Natural Gas
Only)
Control Valve Location
Equipment Shutoff Valve
WARNING: Test all gas piping and
connections, internal and external
to unit, for leaks after installing or
servicing. Correct all leaks at once.
WARNING: Never use an open
flame to check for a leak. Apply a
noncorrosive leak detection fluid to
all joints. Bubbles forming show a
leak. Correct all leaks at once.
CAUTION: Make sure external
regulator has been installed between
propane/LP supply and heater. See
guidelines under Connecting to Gas
Supply, Page 14.
CHECKING GAS CONNECTIONS
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect appliance with its appliance main
gas valve (control valve) and equipment shutoff
valve from gas supply piping system. Pressures
in excess of 1/2 psig (3.5 kPa) will damage heater
regulator.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.
3. Pressurize supply piping system by either open-
ing propane/LP supply tank valve for propane/LP
gas or opening main gas valve located on or near
gas meter for natural gas or using compressed
air.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
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 psi (3.5 kPa).
The appliance must be isolated from the gas
supply piping system by 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 psi (3.5 kPa).
PRESSURE TESTING GAS SUPPLY PIPING
SYSTEM

Astria.us.com
126835-01E 17
INSTALLATION
Continued
PRESSURE TESTING HEATER GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure 18).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP
supply tank valve.
3. Make sure control knob of heater is in the OFF
position.
4. Check all joints from equipment shutoff valve to
gas valve (see Figure 16 or 17). Apply noncor-
rosive leak detection fluid to all joints. Bubbles
forming show a leak.
5. Correct all leaks at once.
6. Light heater (see Operation, Page 25 depend-
ing on your model). Check all other internal
joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appli-
ance, Page 26, depending on your model).
INSTALLING LOGS
Log Support Brackets
If installing a AndesMtn36, attach log support
brackets before installing logs. These brackets
are provided with the Blaze&Glow24 series burner
systems.
1. Install left bracket to left side of chassis using
2 screws provided (see Figure 18).
2. Install right bracket to right front of chassis
using 2 screws provided (see Figure 18). This
bracket will also be used as remote control
bracket if remote is installed.
Figure 18 - Installing Log Support Brackets
Left Log
Support
Bracket
Chassis
Right Log
Support
Bracket
Right Front of Chassis
INSTALLING SWITCH
A AUTO/OFF/ON switch and wire assembly is sup-
plied with this burner system. This switch needs to
be used only if remote or wall switch is not being
used. Place the wire assembly and switch into
the switch log. Remove the jumper wire from the
control valve and then connect the wires to the valve
from the switch assembly as shown in Figure 19.
Figure 19 - Connecting Wires
Control Valve
To AUTO
Terminal
on Switch
To OFF Terminal
on Switch
Blaze&Glow Series Burner System
Log Compatibility Chart
Burner System
Models
Fiber Log
Models
Concrete Log
Models
Blaze&Glow18MN
Blaze&Glow18MP AndesMtn18 BisonMtn18
RedWoodM18
Blaze&Glow24MN
Blaze&Glow24MP
AndesMtn24
AndesMtn30
AndesMtn36
BisonMtn24
BisonMtn30
RedWoodM24
RedwoodM30
WARNING: Failure to position
the parts in accordance with these
diagrams or failure to use only parts
specifically approved with this heater
may result in property damage or
personal injury.
CAUTION: Do not remove the data
plates attached to the heater base as-
sembly.Thedataplatescontainimpor-
tant safety and warranty information.
WARNING: After installation and
periodically thereafter, check to ensure
that no flame comes in contact with
any log. With the heater set to High,
check to see if flame contact any log. If
so, reposition logs according to the log
installation instructions in this manual.
Flames contacting logs will create soot.

Astria.us.com 126835-01E18
INSTALLATION
Continued
FIBER LOG MODELS
AndesMtn(18, 24, 30, 36)
NOTE: Your appliance may vary from model shown
but log placement will be the same.
1. Place bottom log in center of the base assembly
as shown in Figure 20.
2. Rest rear log in back corner sections of base
assembly as shown in Figure 20. Make sure log
is completely vertical and not leaning in toward
burner where flame will touch the log. The
log must sit flat on the black sheet metal and
behind the left metal tab as shown in Figure
20-A.
Rear Log
Grate
Prongs
Figure 20 - Installing Log Set
Bottom Log
Base Assembly Front Right
Log
Front Left
Log
Figure 21 - Installing Log Sets
Middle Right Log
Middle
Left Log
Bottom
Log
Pin on Front
Left Log
Figure 22 - Installing AndesMtn36 Model
Control Cover Logs
Left Control
Cover Log
Right Control
Cover Log Right Small Front Log
Left Small
Front Log
Bracket
Bracket
3. Position front right log against right side of
grate prongs (see Figure 20).
4. Position front left log against left side of grate
prongs (see Figure 20).
5. Place middle right log over front right and
bottom logs as shown in Figure 21.
Be sure hole in middle right log seats over pin
in bottom log.
6. Place middle left log over front left and bottom
logs as show in Figure 21. Be sure hole in
middle left log seats over pin in front left log.
7. For AndesMtn36, the front right and left logs
are longer and are supported with brackets
on each end (see Figure 22). Place left and
right small front logs under left bracket and
beside right bracket.
8. For AndesMtn36, position left and right con-
trol cover logs as shown in Figure 23, Page
19. These may be placed as desired to hide
controls.
Figure 20-A - Installing Log Set
Ramp
Log
Metal Tab

Astria.us.com
126835-01E 19
INSTALLATION
Continued
AndesMtn(18,24,30) MODELS
AndesMtn36 MODELS
Figure 23 - Correct Log Placement
CONCRETE LOG MODELS RedWoodM(18,
24, 30)
Each log is marked with a number. These numbers
will help you identify the log when installing (see
chart on Page 20). It is very important to install
these logs exactly as instructed. Do not modify
logs. Only use logs supplied with heater.
NOTE: Your appliance may vary from model shown
but log placement will be the same.
1. Place fiber ramp-log in center on chassis as
shown in Figure 24. The fiber ramp-log can be
identified by its shape and much lighter weight
when compared to the other logs.
Figure 24 - Installing Log Set
Base Assembly
Ramp Log
2. The log must sit flat on the black sheet metal
and behind the left metal tab as shown in Fig-
ure 25.
3. Place front left and right logs and rear log as
shown in Figure 26.
4. Place top left log as shown in Figure 27. The
bottom of the log is shaped to fit onto the
recessed areas of the front left log and the rear
log. The recessed areas are painted yellow.
5. Place top right log as shown in Figure 27.
The bottom of the log is shaped to fit onto the
recessed areas of the front right log and the
rear log. The recessed areas are painted yellow.
Rear
Log
Front Right Log
Front Left Log
Figure 26 - Installing Logs
Figure 27 - Installing Logs
Top Right Log
Front Left Log
Front Right Log
Top Left Log
Figure 25 - Installing Log Set
Ramp
Log
Metal Tab

Astria.us.com 126835-01E20
6. Place the small top right log as shown in Figure
28. The bottom of the log is shaped to fit onto
the recessed areas of the top right log and the
front right log. The recessed areas are painted
yellow.
Figure 28 - Installing Log
Small
Top Log
INSTALLATION
Continued
Description Qty
Front Left Log 012 001 007 1
Front Right Log 013 002 008 1
Rear Log 014 003 009 1
Top Left Log 016 004 011 1
Top Right Log 015 005 010 1
Small Top Right Log 006 006 006 1
RedWoodM18
RedWoodM24
RedWoodM30
Front Right
Log
Top
Right
Log
CONCRETE LOG MODELS
BisonMtn(18, 24, 30)
NOTE: Your appliance may vary from model shown
but log placement will be the same.
1. Before placing any logs on the chassis you will
need to remove the Air Shield located on the left
side near the rear burner as shown in Figure 28.
The Air Shield is held in place with one screw,
remove the Air Shield and place the screw back
into the hole in the chassis. Place the Air Shield
with you owner's manual and keep.
Figure 28 - Removing Air Shield
Air Shield
Screw
2. Place fiber ramp log in center of chassis as
shown in Figure 39, Page 23. The fiber ramp log
can be identified by the shape and much lighter
weight when compared to the other logs. The
log must sit flat on the black sheet metal and
behind the left metal tab as shown. Make sure
the side marked ''BOTTOM'' is setting down.