Astria Fireplaces Alpha32ZEN Installation instructions

Installation and Operation Instructions
Unvented (Vent-Free) Radiant Faced and Louvered
Fireplace System with Logs and Thermostat Blower
P/N 900720-00 REV. E 12/2019
Alpha32ZEN Alpha32ZEP Alpha36ZEN Alpha36ZEP
Models
P900720-00
BisonMtn18 BisonMtn24
For use with log set (required option)
PFS
®
US
Report No. F12-047
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.
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.

Thank you for your purchase. We appreciate your
business!
Please carefully read and follow all instructions in this manual. Pay
special attention to all warnings and safety information.
Following these safety, care, and operation instructions will help
ensure many years of dependable and enjoyable service from your
fireplace.
Please read and understand these instructions before installing
or operating.
TABLE OF CONTENTS
Safety...................................................................................................2
Product Identification...........................................................................5
Local Codes .........................................................................................5
Unpacking............................................................................................5
Product Features..................................................................................6
Air For Combustion and Ventilation......................................................7
Installation ...........................................................................................9
Operation ...........................................................................................23
Inspecting Burners.............................................................................30
Cleaning and Maintenance .................................................................31
Wiring Diagram..................................................................................32
Specifications.....................................................................................33
Replacement Parts.............................................................................33
Service Hints......................................................................................33
Technical Service ...............................................................................33
Troubleshooting ................................................................................. 34
Accessories........................................................................................41
Parts ..................................................................................................42
Warranty ............................................................................................47
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SAFETY
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.
WARNING: Vent-free products are prohibited for
bedroom and bathroom installation in the Common-
wealth of Massachusetts.
These appliances comply with National Safety
Standards and are listed by PFS TECO to ANSI
Z21.11.2 as unvented Gas-fired room heaters.
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.
IMPORTANT: Read this owner’s manual carefully and
completely before trying to assemble, operate or ser-
vice this heater. Improper use of this heater can cause
serious injury or death from burns, fire, explosion,
electrical shock and carbon monoxide poisoning.
* Aftermarket: Completion of sale, not for purpose of resale, from
the manufacturer
WARNING:FIRE,EXPLOSION,ANDASPHYXIATION
HAZARD
Improper adjustment, alteration, service, mainte-
nance, or installation of this heater or its controls can
cause death or serious injury.
Read and follow instructions and precautions in User’s
Information Manual provided with this heater.
Any safety screen, guard, or barrier removed for ser-
vicing an appliance must be replace prior to operating
the heater. The firescreen or guard designed for this
unventedappliancemustbeinstalledpriortooperation.
WARNING:Thisproductcanexposeyoutochemicals
including Carbon Black, which is known to the State
of California to cause cancer, and Carbon Monoxide,
which is known to the State of California to cause birth
defects or other reproductive harm. For more informa-
tion go to www.P65Warnings.ca.gov

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900720-00E 3
SAFETY Continued
WARNING: Do not use a blower insert, heat ex-
changer insert or other accessory not approved for
use with this heater.
Due to high temperatures, the appliance should be lo-
catedoutoftrafficandawayfromfurnitureanddraperies.
Do not place clothing or other flammable material on
or near the appliance. Never place any objects on the
heater.
Youmustoperateappliancewiththefireplacescreenand
hoodinplacebeforerunning heater.Thefireplace screen
shall have openings for introduction of combustion air.
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.
Keep the appliance area clear and free from combus-
tible materials, gasoline and other flammable vapors
and liquids.
Installation and repair should be done by a qualified
service person. The appliance should be inspected
before use and at least annually by a professional
service person. More frequent cleaning may be re-
quired due to excessive lint from carpeting, bedding
material, etc. It is imperative that control compart-
ments, burners, and circulating air passageways of
the appliance be kept clean.
This appliance must be mounted on a fully supported
base extending the full width and depth of the unit.
The fireplace may be located on or near conventional
construction materials. However, if installed on com-
bustible materials, such as carpeting, vinyl tile or other
combustible material other than wood flooring, the
appliance shall be installed on a metal or wood panel
extending the full width and depth of the appliance.
Fireplace front and screen become very hot when run-
ning fireplace.
WARNING: Young children should be carefully
supervised when they are in the same room with the
appliance. When using the hand-held remote acces-
sory, keep selector switch in the OFF position to prevent
children from turning on burners with remote.
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 soot-
ing.
WARNING: Any change to this heater or its con-
trols can be dangerous.
DANGER: Carbon monoxide poisoning may lead
to death!
Carbon Monoxide Poisoning: Early signs of carbon monoxide poison-
ing 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.
Natural and Propane/LP Gas: Natural and propane/LP gases are
odorless. An odor-making agent is added to the gas. 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
heater.
Solid-fuels shall not be burned in a fireplace in which
an unvented room heater is installed.
WARNING: Do not place log scraps or volcanic
stone on burner.

2. Do not place propane/LP supply tank(s) inside any structure.
Locate propane/LP supply tank(s) outdoors (propane/LP 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
•leave the building immediately
•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 fireplace shall not be installed in a bedroom or bathroom.
5. Do not use this fireplace as a wood-burning fireplace. Use only
the logs provided with the fireplace.
6. Do not add extra logs or ornaments such as pine cones, vermicu-
lite, or glowing embers (rockwool). Using these added items can
cause sooting. Do not add volcanic stone around base. Volcanic
stone and debris could fall into the control area of fireplace.
7. This fireplace is designed to be smokeless. If logs ever appear
to smoke, turn off fireplace and call a qualified service person.
NOTE: During initial operation, slight smoking could occur due
to log curing and fireplace burning manufacturing residues.
8. To prevent the creation of soot, follow the instructions in Clean-
ing and Maintenance, Page 31.
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 or furniture.
10.This fireplace needs fresh air ventilation to run properly. This
fireplace has an Oxygen Depletion Sensing (ODS) safety shutoff
system. The ODS shuts down the fireplace if not enough fresh
air is available. See Air for Combustion and Ventilation, Page 6.
If fireplace keeps shutting off, see Troubleshooting, Page 34.
11.Do not run fireplace
•where flammable liquids or vapors are used or stored.
•under dusty conditions.
12.Do not use this fireplace to cook food or burn paper or other
objects. Never place any objects in the fireplace or on logs.
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 fireplace if any log is broken. Do not operate
fireplace if a log is chipped (dime-sized or larger).
15.Turn off and unplug fireplace and let cool before servicing. Only
a qualified service person should service and repair fireplace.
1. WARNING: This appliance is only for use with the type of gas
indicated on the rating plate. This appliance is not convert-
ible for use with other gases.
SAFETY Continued
16.Operating fireplace above elevations of 4,500 feet could cause
pilot outage.
17.To prevent performance problems, do not use propane/LP fuel
tank of less than 100 lbs. capacity (propane/LP only).
18.Provide adequate clearances around air openings.
19.The screen or any other part removed for servicing must be
replaced prior to operating this heater.
PRODUCT IDENTIFICATION
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Log Set
Base Assembly
Front Burner
Remote Control
Cont.
S M T W T F S
AM
PM
ROOM
SET
P1
A
P1
P2
P2
Pilot
:
ON THERMO OFF
°
u
°
PROGRAM
MODE/SET
Top Outer Casing
Top panel
Assembly
Fireplace
Hood
Bottom Panel
Assembly
Screen
Assembly
Magnet
Left Side
Right
Side
Front
Figure 1 - Log Base Assembly
Figure 2 - Fireplace

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900720-00E 5
1. Remove logs and appliance base assembly
from carton(s).
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.
LOCAL CODES
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*. Firebox
must be electrically grounded in accordance with
the National Electrical Code, ANS/NFPA70* (latest
edition).
*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
CAUTION: Do not remove the data
plates attached to the heater base as-
sembly.Thedataplatescontainimpor-
tant warranty and safety information.
COMMONWEALTH OF MASSACHUSETTS RE-
QUIREMENTS
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 Common-
wealth 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.
• Un-vented appliances may NOT be installed in
bedrooms or bathrooms.
• A working smoke detector must be installed
in the area where vent-free appliances are in-
stalled.
Seller of un-vented 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 FEATURES
OPERATION
This vent-free fireplace 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 embers. When used without the
blower, the fireplace requires no electricity making it
ideal for emergency backup heat.
SAFETY DEVICE
This fireplace 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 system shuts off the fireplace if there is
not enough fresh air.
ELECTRONIC IGNITION SYSTEM
This heater has an electronic igniter to light the
fireplace's fuel supply.
BLOWER ASSEMBLY
Thisfireplaceincludesablowerassembly.Theblower
operates thermostatically and features a variable
speed control. The blower circulates heated air from
the fireplace into the room.

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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-m2) or less with openings 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 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.
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 installed is con-
fined 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 per hour
(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 per hour (4.8 m3per kw) of
the aggregate input rating of all appliances installed
in that space. Rooms communicating directly with the
space in which the appliances are installed*, through
openings not 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
FIREPLACE LOCATION
Determining if You Have a Confined or
Unconfined Space Using the Standard Method
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:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on Pages 6–8 will help you clas-
sify 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.
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.

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900720-00E 7
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) = 2,560 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: 2,560 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 the space can sup-
port)
_________Btu/Hr (actual amount of Btu/Hr 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 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:
AIR FOR COMBUSTION AND VENTILATION
Continued
40,000
33,000
73,000
Figure 3 - 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"
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.
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 un-
confined space. You will need no additional fresh air
ventilation.
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.
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 3). You
can also remove door into adjoining room (see
option 3, Figure 3).

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Figure 4 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Follow the National Fuel Gas Code, ANSI Z223.1/
NFPA 54, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
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.
AIR FOR COMBUSTION AND VENTILATION
Continued
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.

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900720-00E 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.
CAUTION: This fireplace creates
warm air currents. These currents
move heat to wall surfaces next to
fireplace. Installing fireplace next
to vinyl or cloth wall coverings or
operating heater where impurities
(such as, but not limited, to tobacco
smoke, aromatic candles, cleaning
fluids, oil or kerosene lamps, etc.)
in the air exist, may discolor walls
or cause odors.
WARNING: Never install the
fireplace
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, cloth-
ing, or other flammable objects
are less than 36" from the front
and 42" from the top of fireplace.
For side clearances see
Figure 8,
Page 11
• in high traffic areas
• in windy or drafty areas
WARNING: A qualified service
person must install fireplace. Follow
all local codes.
NOTE: Your fireplace is designed to be used in zero
clearance installations. Wall or framing material
can be placed directly against any exterior surface
on the rear, sides, or top of your fireplace, except
where standoff spacers are integrally attached.
Where standoff spacers are attached to your
fireplace, combustible material (studs and wall
board) may be place on top and above the top of
the standoffs.
Use the dimensions shown for rough openings to
create the easiest installation. See Built-In Fireplace
Installation, Page 12.
IMPORTANT: Vent-free heaters add moisture to the
air. Although this is beneficial, installing fireplace
in rooms without enough ventilation air may cause
mildew to form from too much moisture. See Air
for Combustion and Ventilation, Page 6.
IMPORTANT: Make sure the fireplace is level. If fire-
place is not level, log set will not work properly.
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 dealer where you purchased
the appliance for proper type appliance.
WARNING:Thisapplianceisequipped
foreithernaturalgasorpropane/LPgasbut
notboth.Gastypeisindicatedontherating
plate. Field conversion is not permitted.

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INSTALLATION
Continued
Figure 6 - Assembling Perimeter Trim
Figure 7 - Attaching Perimeter Trim to Fireplace
Side Trim
Slot
Mitered
Edge
Slot
Shim
Set Screws
Adjusting
Plate Top
Trim
Mitered
Edge
ASSEMBLING AND ATTACHING OPTIONAL
PERIMETER TRIM
(Included with Mantel Accessory)
IMPORTANT: If you are recessing the firebox in a
wall, do not attach trim at this time. See Built-In
Fireplace Installation, Page 12.
NOTE: These instructions show assembling and
attaching trim to fireplace.
1. Remove packaging from three pieces of
trim.
2. Locate four screws, two adjusting plates with
set screws, and two shims in the hardware
packet.
3. Align shim under adjusting plate as shown in
Figure 6.
4. Slide one end of adjusting plate/shim in slot on
mitered edge of top trim (see Figure 6).
5. Slide other end of adjusting plate/shim in slot
on mitered edge of side trim (see Figure 6).
6. While firmly holding edges of trim together,
tighten both set screws on the adjusting plate
with slotted screwdriver.
7. Repeat steps 1 through 6 for other side.
8. Tighten trim hanging screws (#10 x 6.25
shoulder) into holes in cabinets. Place the
assembled trim onto fireplace cabinet. Align
hanging notches on trim with hanging screws
on side of fireplace (see Figure 7). Push trim
firmly into place, sliding hanging notches over
hanging screws.
Trim
Hanging
Screws
Hanging
Notches
on Trim
Assembled Trim
Figure 5 - Installing Hood
Screw
Hood
Rail
ELECTRICAL HOOKUP
This fireplace includes a blower which must be
connectedto either a wall receptacleor the electrical
receptacle that is included within the fireplace. If
the receptacle included with the fireplace is to be
used, it must be wired to a 120 volt supply by a
certified electrician.
INSTALLING HOOD
Install hood to rail already installed in fireplace as
shown in Figure 5. Use 3 Phillips screws provided.

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900720-00E 11
INSTALLATION
Continued
1. Assemble cabinet mantel, hearth base, and
trim accessories. Assembly instructions are
included with each accessory.
2. Install a properly grounded, 120 volt three-
prong electrical outlet at fireplace location if
an outlet is not there. If possible, locate outlet
so cabinet mantel will cover it when installed
(see Figure 9).
3. Install gas piping to fireplace location. This
installation includes an approved flexible gas
line (if allowed by local codes) after the equip-
ment shutoff valve. The flexible gas line must
be the last item installed on the gas piping.
See Installing Gas Piping to Fireplace Location,
Page 14.
4. Place hearth base accessory against wall at instal-
lation location. Cut an access hole in hearth top
to run flexible gas line to fireplace (see Figure 9).
Make sure to locate access hole so cabinet mantel
will cover it when installed.
NOTE: You can secure base to floor using wood
screws. Countersink screw heads and putty over.
5. Route flexible gas line through access hole in
hearth base.
6. Center cabinet mantel on hearth base (see Figure
10, Page 12). Make sure mantel is flush against
wall.
7. Place cardboard or other protective material
on top of hearth base. Carefully set fireplace
on protective material, with back of fireplace
inside mantel opening.
8. Attach flexible gas line from fireplace gas regu-
lator to gas supply. See Connecting Fireplace
to Gas Supply, Page 15.
9. Route blower electrical cord through access
holes in either side of fireplace.
CONVENTIONAL FIREPLACE
INSTALLATION
Conventional installation of this fireplace involves
installing fireplace along with the corner, face, or
cabinet mantel with hearth base accessories against
a wall in your home. Follow the instructions in this
section to install the fireplace in this manner.
Figure 9 - Placing Hearth Base Accessory
Against Wall
Electrical Outlet
Hearth Base
Rigid Pipe and Gas
Shutoff Valve
Gas Line
Access Hole
*Minimum 16" from Side Wall
Figure 8 - Minimum Clearance for Combustible
to Wall
*
Example
Maintain adequate clearances for accessibility for purposes
of servicing and proper operation.
WARNING:Maintaintheminimum
clearances.Ifyoucan,providegreater
clearances from floor, ceiling and
adjoining wall.
INSTALLATION CLEARANCES
Carefully follow the instructions below. This will
ensure safe installation.
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 8.
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 open-
ing (see Figure 8).
B. Clearances from top of fireplace opening to
ceiling should not be less than 42".
MINIMUM CLEARANCE TO COMBUSTIBLE
MATERIALS
Top 0", Left and Right Sides 16",
Bottom and Rear 0", Front 36"

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INSTALLATION
Continued
Figure 10 - Installing Cabinet Mantel
Cabinet
Mantel
Figure 11 - Location of Nailing Flange
Nailing
Flange
10. Carefully insert fireplace into cabinet mantel. Be
careful not to scratch or damage hearth base,
cabinet mantel, or any laminate trim on hearth
base. Remove protective material from top of
hearth base and from front of fireplace (if any).
NOTE: You can secure fireplace to hearth or floor.
Remove burner assembly. Locate screw holes in
bottom of base. Tighten wood screws through
these holes and into hearth or floor. Replace
burner assembly.
11. Check all gas connections for leaks. See Check-
ing Gas Connections, Page 16.
Figure 12 - Inserting Fireplace Into Cabinet
Mantel
BUILT-IN FIREPLACE INSTALLATION
Built-in installation of this fireplace involves install-
ing fireplace into a framed-in enclosure. This makes
the front of fireplace flush with wall. If installing a
mantel above the fireplace, you must follow the
clearances shown in Figure 16, Page 13. Follow
the instructions below to install the fireplace in
this manner.
1. Frame in rough opening. Use dimensions
shown in Figure 13 for the rough opening. If
installing in a corner, use dimensions shown in
Figure 14, Page 13;Figure 13,for the rough
opening.
Figure 13 - Rough Opening for Installing in Wall
Rough Opening Dimensions for Built-in
Installation
Model Front Width
(Inside to Inside) Height Depth
32" 34 7/8" 36 3/4" 16 1/4"
36" 41 1/2" 40 1/2" 20 3/4"
Depth
(Minimum)
Width
(Inside to Inside)
Height
2. Install gas piping into fireplace location. This
installation includes an approved flexible gas line
(if allowed by local codes) after the equipment
shutoff valve. The flexible gas line must be the
last item installed on the gas piping. See Install-
ing Gas Piping to Fireplace Location, Page 14.
3. Carefully set fireplace in front of rough opening
with back of fireplace inside wall opening.
4. Carefully insert fireplace into rough opening.
5. Attach flexible gas line to gas supply. See
Connecting Fireplace to Gas Supply, Page 15.
6. Attach fireplace to wall studs using nails or
wood screws through holes in nailing flange
(see Figure 15).

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900720-00E 13
INSTALLATION
Continued
Figure 15 - Attaching Fireplace to Wall Studs
Nailing Flange
Nails or
Wood
Screws
Figure 16 - Minimum Mantel Clearances for
Built-In Installation
Supplied
Firebox Hood
Must Be Used
at All Times
Wire-mesh
Screen
Firebox
Noncombustible
Material May
Project Off this
Surface above
the Firebox Hood
Mantel Shelf
Note: Any portion of the
mantel shelf must NOT
extend beyond this profile.
12" 16" 20"
1 1/2"
6 3/4"
12"
Note: All vertical
measurements are
from top of fireplace
hood opening to
bottom of mantel shelf.
These minimum
clearances replace any
other recommended
clearances supplied
with your ANSI Z21.11.2
approved gas logs.
Wall board or facing
material (above
firebox) may be of
combustible material,
including decorative
mantel ornaments or
other similar projec-
tions off of the facing
material.
Framing
Material
Figure 14 - Rough Opening for Installing in
Corner
*14 1/2"
50 3/8"
71 1/4"
35 5/8"
*14 1/2"
41 1/2"
0" CLEARANCE
FOR 36" MODELS
Figure a
Figure b
* THESE DIMENSIONS ALLOW FOR MINIMUM CLEARANCES TO
A 45° PROJECTED SIDE WALL
HOWEVER, CLEARANCES TO PROJECTED MANTEL TRIMS AND
FACINGS ARE ALLOWED WITHIN A MINIMUM OF 16" TO A
PERPENDICULAR WALL AS SHOWN IN FIGURE 8, ON PAGE 11
* THESE DIMENSIONS ALLOW FOR
ANCES TO A 45°
OJECTED MANTEL TRIMS AND
ACINGS ARE ALLOWED WITHIN
RE 5, ON PAGE 10
55 5/8"
39 3/8"
34 1/2"
27 3/4"
0" CLEARANCE
*10 1/2"*10 1/2"
FOR 32" MODELS
WARNING: Do not allow any com-
bustible materials to overlap the firebox
front facing.
WARNING:Donotallownoncombus-
tible materials to cover any necessary
openings like louvered slots.
WARNING:Useonlynoncombustible
mortar or adhesives when overlapping
the front facing with noncombustible
facing material.
IMPORTANT: When finishing your firebox, com-
bustible materials such as wall board, gypsum
board, sheet rock, drywall, plywood, etc. may be
butted up next to the sides and top of the firebox.
Combustible materials should never overlap the
firebox front facing.
IMPORTANT: Noncombustible materials such as
brick, tile, etc. may overlap the front facing, but
should never cover any necessary openings like
louvered slots or screen assembly.
7. Check all gas connections for leaks. See Check-
ing Gas Connections, Page 16.
8. Plug electrical cord into electrical outlet.
9. Install trim after final finishing and/or painting
of wall (see Figure 7, Page 10).
Minimum clearance requirements include any
projectionssuchasshelves,windowsills,fireplace
mantels, etc. above the appliance.

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INSTALLATION
Continued
Mantel Clearances for Built-In Installation
If placing mantel above built-in fireplace, you must
meet minimum clearance between mantel shelf and
top of fireplace opening.
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.
WARNING: A qualified service
person must connect appliance to gas
supply. Follow all local codes.
WARNING:Thisappliancerequires
a 1/2" NPT (National Pipe Thread) inlet
connection.
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.
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:
• raise the mantel to an acceptable
height
• remove the mantel
INSTALLING GAS PIPING TO FIREPLACE
LOCATION
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, and
variations in BTU content. The use of
well-head gas will void the manufac-
turer’s warranty to this appliance.
Installation Items Needed
Before installing fireplace, make sure you have the
items listed below.
• external regulator for propane/LP unit only (sup-
plied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap (optional)
• tee joint
• pipe wrench
• approved flexible gas line with gas connector (if
allowed by local codes) (not provided)
* A equipment shutoff valve with 1/8" NPT tap is
an acceptable alternative to test gauge connection.
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 regu-
lator damage could occur. Install external regulator
with the vent pointing down as shown in Figure 17,
Page 15. Pointing the vent down protects it from
freezing rain or sleet.

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900720-00E 15
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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 fireplace (see Figure 18).
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.
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
fireplace valves. Never use sealant on flare threads.
INSTALLATION
Continued
Figure 17 - External Regulator on Propane/LP
Supply Tank with Vent Pointing Down
External
Regulator Propane/LP
Supply Tank
Vent Pointing Down
CONNECTING FIREPLACE TO GAS SUPPLY
Installation Items Needed
• 5/16" hex socket wrench or nut-driver
• Phillips screwdriver
• sealant (resistant to propane/LP gas, not pro-
vided)
1. Remove fireplace screen. Remove two screws
that hold fireplace screen in place for shipping.
These screws are located near top of screen.
Discard screws. Push the bottom corners of the
screen in and release. The screen will pop out
at the bottom. Grasp the bottom of the screen,
lift the screen up and pull out to remove.
2. Remove screws that attach log base assembly
to fireplace (see Figure 19, Page 16). Carefully
lift up log base assembly and remove from
fireplace (see Figure 19, Page 16).
3. Route gas line (provided by installer) from
equipment shutoff valve to fireplace. Route
flexible gas supply line through one of the
access holes.
NOTE: If adding brick liner accessory kit, install it
now. Follow brick liner accessory kit instructions.
4. Attach the flexible gas line to gas supply
(see Figure 20, Page 16). Check tightness of
flexible gas line attached to gas regulator of
fireplace (see Figure 20, Page 16).
5. Check all gas connections for leaks. See Check-
ing Gas Connections, Page 16.
Figure 18 - Gas Connection
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 18. Locate sediment
trap where it is within reach for cleaning. Install in
piping system between fuel supply and fireplace.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture
and contaminants. This keeps them from going
into fireplace gas controls. If sediment trap is not
installed or is installed wrong, fireplace may not
run properly.
** Minimum inlet pressure for purpose
of input adjustment.
3" Minimum
Natural Gas
From Gas Meter
(5" W.C.**
to 10.5" W.C.
Pressure)
Propane/LP
From External
Regulator
(11" W.C.**
to 14" W.C.
Pressure)
Sediment Trap
Cap Pipe Tee
Nipple Joint

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INSTALLATION
Continued
Figure 19 - Removing Log Base Assembly From
Fireplace
Figure 20 - Attaching Flexible Gas Lines
Together
Flexible Gas Line
from Fireplace Gas
Regulator
To Fireplace Gas
Regulator Equipment Shutoff
Valve Provided by
Installer
Propane/LP
To External
Regulator
Natural Gas
To Gas Meter
6. Replace log base assembly back into fireplace.
Feed flexible gas line into fireplace base area
while replacing log base assembly. Make sure
the entire flexible gas line is in fireplace base
area. Reattach log base assembly to fireplace
with screws removed in step 2, Page 15.
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/LPsupplyandappliance.See
guidelines under Connecting to Gas
Supply, Page 15.
CAUTION: Do not pick up log
base assembly by burner. This could
damage burner. Only handle base
by grates.
NOTICE: Most building codes do not
permit concealed gas connections. A
flexible gas line is provided to allow
accessibility from the fireplace (see
Figure20).Theflexiblegassupplyline
connection to the equipment shutoff
valve should be accessible.
CHECKING GAS CONNECTIONS
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect fireplace with its 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
fireplace regulator.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.
3. 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.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
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

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900720-00E 17
5. Correct all leaks at once.
6. Reconnect fireplace 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
21).
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 Figures 22 and 23). Apply noncorrosive
leak detection fluid to all joints. Bubbles forming
show a leak.
4. Correct all leaks at once.
INSTALLATION
Continued
Figure 21 - Equipment Shutoff Valve
Figure 23 - Checking Gas Joints for Propane/
LP Gas
Propane/LP
Supply Tank
Figure 22 - Checking Gas Joints for Natural Gas
Gas Control Valve
Equipment Shutoff Valve
Equipment
Shutoff Valve
Gas Meter
Gas Control Valve
Open
Closed
Equipment
Shutoff
Valve
PRESSURE TESTING FIREPLACE GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure 21).
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 fireplace is in the
OFF position.
4. Check all joints from equipment shutoff valve
to gas control valve (see Figures 22 or 23).
Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light fireplace (see Operation, Page 23).
Check all other internal joints for leaks.
7. Turn off fireplace (see To Turn Off Gas to Ap-
pliance, Page 23).

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INSTALLATION
Continued
Figure 28 - Installing Fiber Ramp Log
Ramp Log
Metal
Tab
Figure 29 - Installing Left/Right Front Logs
Left Front
Log
Right Front Log
WARNING: Failure to position
the parts in accordance with these
diagrams or failure to use only parts
specifically approved with this appli-
ance may result in property damage
or personal injury.
CAUTION: Do not remove the
data plates attached to the heater
base assembly. The data plates con-
tain important safety and warranty
information.
INSTALLING LOGS
1. Place fiber ramp log in center of chassis as
shown in Figure 28. 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.
2. Place front left and front right logs as shown in
Figure 29.
WARNING: After installation and
periodically thereafter, check to en-
sure that no flame comes in contact
with any log. With the heater set to
High,checkto seeifflamecontactany
log. If so, reposition logs according
to the log installation instructions in
this manual. Flames contacting logs
will create soot.

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900720-00E 19
INSTALLATION
Continued
Figure 30 - Installing Left Ember Bed Log
Left Ember Bed
Log
3. Place left ember bed log as shown in Figure
30. The log has groove on one side that sets
on the ember bed pan. The back side of this
log needs to rest against the front of the base
assembly. Make sure the flame from the ember
pan does not touch the ember bed log.
4. The Alpha32 and Alpha36 use two different right
ember bed logs. The Alpha32 right ember bed
log is installed in the same manner as the log in
step 3 above but on the right side. The Alpha36
right ember bed log has a hole in the bottom
that sets on the grate finger and the other end
rest on the fireplace floor, place log as shown
in Figure 31. The back side of this log needs
to rest against the front of the base assembly,
make sure the flame from the ember pan does
not touch the ember bed log.
Figure 31 - Installing Right Ember Bed Log
Alpha36 Right
Ember Bed Log
Hole Underneath
Grate Prong
5. The left middle log has a groove on the bottom
to sit on the chassis and has to sit on the tab on
the back of the left front log as shown in Figure
32.
6. The right middle log has a groove on the bottom
to sit on the chassis and has to sit on the tab on
the back of the right front. The right middle log
should have a recess area that fits around the
ramp log as shown in Figure 33.
Figure 32 - Installing Left Middle Log
Left Middle Log
Figure 33 - Installing Right Middle Log
Right Middle
Log
7. The rear middle log should fit between the ramp
log and the rear burner. The left and right middle
logs have recessed areas for the rear middle log
to sit into (See Figure 34, Page 20). Be careful
not to push the rear burner out of position while
installing this log.
8. Rest rear log in back corner sections of chassis
assembly as shown in Figure 35, Page 20.

Astria.us.com 900720-00E20
INSTALLATION
Continued
Rear Middle
Log
Figure 34 - Installing Rear Middle Log
Figure 35 - Installing Rear Log
Rear Log
Figure 36 - Installing Left Top Log
Figure 37 - Installing Middle Crossover Log
Rear Log
Left Top Log
Left
Middle
Log
Middle
Crossover
Log
Figure 38 - Installing Top Rear Log
Top Rear Log
Rear Log
9. Place the left top log onto the rear log and the left
middle log. Make sure to place the projection on
the bottom of the left top log into the recessed
areas on the rear and left middle logs (see Figure
36).
10. Rest the middle crossover log onto the right
middle log and the left front log (see Figure 37).
Make sure to match the projection on the bottom
of the crossover log with the recess area in the
right middle log and the left front log.
11. Place the top rear log onto the rear log as shown.
The rear log has a projection that will fit into the
recess area on the bottom of the top rear log (see
Figure 38).