Astria MM39VF User manual

Report No. 08-154
ICC Evaluation Services
Report No. 2401
WARNING: If the information in these in-
structions is not followed exactly, a re or ex-
plosion may result causing property damage,
personal injury or death.
— Do not store or use gasoline or other
ammable 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 re department.
— Installation and service must be performed by
a qualied installer, service agency or the gas
supplier.
IMPORTANT: READ THESE INSTRUCTIONS
CAREFULLY BEFORE STARTING INSTALLA-
TION OF THIS FIREPLACE.
This rebox has been testes and approved by
PFS under ANSI Z21.91 for use with any ANSI
Z21.11.2 approved gas logs.
FOR USE ONLY WITH A LISTED GAS-FIRED
UNVENTED DECORATIVE ROOM HEATER NOT
TO EXCEED 40,000 BTU/HR
DO NOT BUILD A WOOD FIRE.
Carefully review the instructions supplied with
the decorative type unvented room heater for
the minimum replace size requirement.
DO NOT INSTALL AN APPLIANCE IN THlS
FIREBOX UNLESS THlS FIREBOX MEETS THE
MINIMUM DIMENSIONS REQUIRED FOR THE
INSTALLATION.
INSTALLER: Leave this manual with the appli-
ance
CONSUMER: Retain this manual for future
reference.
INSTALLATION AND OPERATION
INSTRUCTIONS
GRAND MERIDIAN
VENT FREE UNIVERSAL MASONRY FIREBOX
MODELS
MM39VF, MM44VF, MM49VF
P/N 125162-01 Rev. B 02/17/14
P125162 01
Do not store gasoline or other ammable vapors and
liquids in the vicinity of this or any other appliance.
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, unless a certi-
ed kit is used.
For more information, visit www.Astria.US.com

Fireplace Parts Diagram ......................................................................................... Pg. 2
Fireplace Parts List ................................................................................................. Pg. 3
General Information ................................................................................................ Pg. 4
Safety Information ................................................................................................... Pg. 5
Location................................................................................................................... Pg. 6
Supporting Floor Systems....................................................................................... Pg. 6 ~ 7
Grand Meridian Weight Determinations .................................................................. Pg. 8
Clearances ..............................................................................................................Pg. 9,10
Air for Combustion and Ventilation.......................................................................... Pg. 10,11
Important Pre-installation Information ..................................................................... Pg. 12
Fireplace Assembly Procedures.............................................................................. Pg. 13 ~ 15
Gas Piping Installation ............................................................................................ Pg. 15
Electrical Line Feed................................................................................................. Pg. 15
Firebrick Liner Installation ....................................................................................... Pg. 16
Initial Fireplace Operation ....................................................................................... Pg. 16
Technical Service .................................................................................................... Pg. 16
Replacement Parts.................................................................................................. Pg. 16
Appendix I ............................................................................................................... Pg. 17
Appendix II .............................................................................................................. Pg. 18
Warranty Information............................................................................................... Pg. 19
CONTENTS
2.625”
6.500”
.125”
.125”
Refer to installation instructions and check local codes prior to installing. This appliance must be installed in accordance
with local codes if any. Otherwise, in accordance with the National Fuel Gas Code ANSI Z223.1 installation codes.
P/N MFP170 OCT2009
COMPLIES WITH ANSI Z21.91-2007, VENTLESS FIREBOX ENCLOSURES FOR GAS-FIRED UNVENTED DECORATIVE ROOM
HEATERS. FOR USE WITH LISTED ANSI Z21.11.2-2013 UNVENTED DECORATIVE ROOM HEATERS, NOT TO EXCEED 40,000 BTU/HR.
0" - 10" : NO PROJECTIONS
10" - 16" : 1½" MAX. PROJ.
16" - 22" : MAX. PROJ.
22" & ABOVE : 10" MAX. PROJ.
DISTANCE FROM SIDE OPENINGS
3" MIN. : 1¾" MAX. PROJ.
MANTEL CLEARANCES
1508 Elm Hill Pike, Suite 108
Nashville, TN 37210
THIS APPLIANCE NEEDS
FRESH AIR FOR SAFE
OPERATION AND MUST
BE INSTALLED SO
THERE ARE PROVISIONS
FOR ADEQUATE
COMBUSTION AND
VENTILATION AIR.
DO NOT REMOVE THIS LABEL
MODEL No.:
MM44VF MM49VFMM39VF
SERIAL No.
DATE OF
MFG:
BOTTOM 0"
2"
42"
18½"
TOP,
BACK &
SIDES
OPENING
TO CEILING
CLEARANCES TO COMBUSTIBLES
RECESS
DEPTH
PFS
®
US
ICC-ES #
ESR-2401
7. HOLES: 4X Ø.125” THRU
6. CLEAR BOXES NEXT TO MODEL NUMBERS ARE TO BE STAMPED DURING MANUFACTURE OF FIREPLACE.
5. LARGE TEXT TO BOLD UPPERCASE ARIAL, 10 PT. MIN. (WHERE SHOWN).
4. SMALLEST TEXT TO BE ARIAL, 8 PT. MIN (WHERE SHOWN).
3. ALL TEXT AND GRAPHICS TO BE BLACK ON A CONTRASTING, CLEAR ALUMINUM BACKGROUND.
2. FINISH: CLEAR MYLAR TO BE APPLIED ON TOP SURFACE.
1. MATERIAL: CLASS IIIA , .024 THICK ALUMINUM RATED AT 302°F (150°C).
NOTES: UNLESS OTHERWISE SPECIFIED
DESCRIPTION: PLATE, RATING VF
PART NUMBER: 125122-01
REV: C
DATE: 2/13/2014
LAST MODIFIED BY: S. SERAFIN
Doc File Name: 125122-01.ai
Below is a sample picture of the rating plate that is located inside the lower dome side of your replace. Model Number, Date of
Manufacture and Serial Number should be stamped on the plate where indicated.

2
Fireplace Parts Diagram
Figure 1
Exploded Diagram
5
9
12
2
7
1
3A
2X
2X
3X
7X
2X
8X
3
6
11
WARNING
Failure to position the parts in
accordance with these diagrams or
failure to use only parts specically
approved with this appliance may result
in property damage or personal injury.

3
Optional Outside Ø4”
Combustion Air Kit
Model No.: MM4AK
(Ø4” Ducting not included)
Refractory Firebrick Liners
(Herringbone Pattern shown, also available
in Running Bond - see Pg.16)
MM(39,44,49)SHBL- Herringbone
MM(39,44,49)FRBL- Running Bond
MM39/44/49VF Fireplace Parts List
ITEM P/N DESCRIPTION QTY
1MFP39-1
MFP44-1
MFP49-1
HEARTH (Left or Right) 2
2MFP39-2
MFP44-2
MFP49-2
REAR WALL 4
3MFP39-3
MFP44-3
MFP49-3
SIDE WALL 7
3A MFP39-3A
MFP44-3A
MFP49-3A
SIDE WALL with 4” hole for Air Kit 1
5MFP39-5
MFP44-5
MFP49-5
DOME REAR - LOWER 1
6MFP39-6
MFP44-6
MFP49-6
LINTEL 1
7MFP39-7
MFP44-7
MFP49-7
DOME SIDE - LOWER 2
9MFP39-9VF
MFP44-9VF
MFP49-9VF
DOME TOP 1
11 125122-01 RATING PLATE 1
12 #3 REBAR (Ø3/8”) x 36” 8

4
General Information
Introduction
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 replace.
Register your product online today!
To help us keep you up-to-date on product information and offers,
please take a few moments to register your product online at
www.Astria.US.com (Owner Resources/Product Registration).
Please read and understand these instructions before in-
stalling or operating.
Before Beginning the Installation
Read these instructions carefully before beginning the
installation of this Vent-Free replace. Also read the gas
log appliance manufacturer’s literature regarding sizing and
suitability for installation into this Enclosure prior to installation.
Statement of Intended Use:
The Grand Meridian Vent-Free Universal Masonry Fireplace
is a modular refractory masonry unit designed
for eld assembly. The rebox is constructed
using pre-cast, interlocking refractory blocks.
The blocks are then secured to each other using
Mortar. The system includes all parts necessary
for the assembly of a complete masonry vent-
free decorative gas log enclosure.
In addition to the basic enclosure, a standard
1-1/8” thick, high temperature refractory brick is
required to line the interior of the rebox.
These replaces are not intended to serve as
a primary heat source, rather, the replace was
expressly created as a supplemental source of
heat.
The Grand Meridian Fireplace is Designed for
Use Only with any Vent free decorative gas log
sets meeting standard ANSI Z21.11.2
Vent free decorative gas log sets meeting
standard ANSI Z21.11.2, are supplied by others
and are limited to any listed vent-free gas-red
log sets with heat input ratings up to 40,000 Btu/
hr.
WARNING: Any application other than the
“Intended Use” as stated above is in violation
of the manufacturer’s instructions and is hereby
prohibited. Such violation may cause immediate
hazard, property damage or loss of life and will
void all liabilities to the manufacturer and will
void all warranties explicit or implied.
Product Overview
Grand Meridian replaces are designed as Factory Built - Field
Assembled Fireplaces to be installed on both combustible and
non-combustible oor systems. They have been extensively
tested to perform with excellent results in this environment.
Attention: Be advised that all the illustrations in this manual
are for general reference only. They are not drawn to scale.
Actual design elements will vary from case to case. Pay
attention to specied minimum clearances as they relate to
combustible materials.
SECTION A-A
W1
W3
W2
23 1/8"
28"
38 3/4"46 3/4"
7 1/8"
21"
4 1/2"
32 5/8"
A
A
Figure 2
Model W1 W2 W3
MM39VF 43” 39” 29-1/4”
MM44VF 48” 44” 34-1/4”
MM49VF 53” 49” 39-1/4”
OUTSIDE AIR ACCESS

5
Safety Information
Carbon Monoxide Poisoning: Early signs of carbon monoxide
poisoning resemble the u, with headaches, dizziness, or
nausea. If you have these signs, the replace may not be
working properly. Get fresh air at once! Have the replace
serviced.
Note: Some people are affected more than others by carbon
monoxide. These may include pregnant women, people with
heart or lung disease, are anemic, anyone under the inuence
of alcohol, and those at high altitude.
IMPORTANT: Read this owners manual carefully
and completely before trying to assemble, operate,
or service this replace. Improper use of this
replace can cause serious injury or death from
burns, re, explosion, electrical shock, and carbon
monoxide poisoning.
General Safety Concerns
1. 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 re
department.
2. This replace shall not be installed in a bedroom or
bathroom.
3. Never install the replace
• In a recreational vehicle.
• Where curtains, furniture, clothing, or other ammable
objects are less than 36 inches from the front, top, or
sides of the replace.
• In high trafc areas.
• In windy or drafty areas.
4. Do not use this replace as a wood-burning replace.
5. Do not add extra logs or ornaments such as pine cones,
vermiculite, or rock wool. Using these added items can
cause soot build-up.
6. This replace is designed to be smokeless. If logs appear
to smoke, turn off replace and call a qualied service
person.
7. Avoid any drafts that alter burner ame patterns. Do not
allow fans to blow directly into the replace. Do not place
a blower inside burn area of the rebox. Ceiling fans may
create drafts that alter burner ame patterns. Soot build-up
and improper burning will occur. Soot build-up can settle on
household surfaces outside the replace.
8. This replace needs fresh air ventilation to run properly.
The Vent free decorative gas log set must have an
oxygen depletion sensor (ODS) pilot light safety system.
The ODS shuts down the replace if not enough fresh
air is available. See Air for Combustion and Ventilation,
page 8. If the replace keeps shutting off, see appliance
manufacturers’ troubleshooting instructions.
9. Do not run replace
• Where ammable liquids or vapors are used or stored.
• Under dusty conditions.
10. Do not use this replace to cook food or burn paper or
other objects.
11. Never place any objects in the replace or on logs.
12. Fireplace screens must be provided and are to be closed
before operating the decorative room heater. If doors are
installed, they must be open during operation. Fireplace
front and screen become very hot when running replace.
Keep children and adults away from hot surfaces to avoid
burns or clothing ignition. The replace will remain hot
for a time after shut down. Allow surfaces to cool before
touching.
13. Carefully supervise young children when they are in the
room with the replace.
14. Do not use replace if any part has been exposed to or
under water. Immediately call a qualied service technician
to inspect the replace and to replace any part of the control
system and gas control which has been under water.
15. Do not operate the replace if any log is broken. Do not
operate the replace if a log is chipped (dime-sized or
larger). Verify proper log placement prior to operating
appliance.
16. Turn replace off and let cool before servicing. Only a
qualied service person should service and repair the
replace.
17. Operating the replace above elevations of 4,500 feet
may cause pilot outage.
DO NOT USE OR STORE GASOLINE OR OTHER
FLAMMABLE LIQUIDS OR GASES IN OR NEAR THE
FIREPLACE!
ATTENTION: A re or an explosion could occur causing property
damage, injury or loss of life if you do not follow the information
in this manual!
NOTE: THIS MANUAL MUST BE REPRODUCED ONLY IN
ITS ENTIRETY.
Carefully review the instructions supplied with the decorative
type unvented room heater for the minimum rebox size
requirement.
DO NOT INSTALL THE APPLIANCE IN THIS
FIREBOX UNLESS THIS FIREBOX MEETS THE
MINIMUM DIMENSIONS REQUIRED FOR THE
INSTALLATION.
When choosing a location for your replace, avoid locations
that are subject to too much draft or locations where you may
encounter obstructions that may be in the way of the replace
once installed. Always check local codes and familiarize yourself
with the surrounding construction.
DANGER:
Carbon monoxide poisoning may lead to
death!

6
Location
Note: You may need to provide combustion and ventilation air
from an outside source to adequately satisfy local codes so
avoid installing a combustion air inlet where the opening could
be blocked by snow, bushes or other obstacles. Note that the
access for outside air inlet is located on the right hand side of
the replace.
Internal
Wall
Installation
Full
Projection
Installation
Flush
Installation
Corner
Installation
Figure 3
A ush installation is recommended where living space is
limited or at a premium. Check local codes for any restrictions.
W
H
D
Figure 4
Model W H D
MM39VF 43” 41” 28”
MM44VF 48” 41” 28”
MM49VF 53” 41” 28”
Projected installations can extend any distance into the room.
A projection may be ideal for a new addition on an existing,
nished wall.
Corner installations make use of space that may not normally
be used and provides a wider and more efcient range for heat
disbursement.
An internal wall installation provides a discreet option for
room separation and can also be ideal as an addition to an
existing wall.
IMPORTANT: Vent-free heaters add moisture to the air.
Installing a replace in rooms without enough ventilation air
may cause mildew to form from too much moisture.
IMPORTANT: Make sure the replace is level. If the replace is
not level, the log set will not work properly.
Attention: You may need a building permit to install a Grand
Meridian replace. Check with the local jurisdiction before you
get started.
Supporting Floor Systems
Floor Framing
It is important to take into consideration that the load for the
Grand Meridian Fireplace is considerable, but, more important,
that it is a dead load that will have to be absorbed by a relatively
small amount of existing oor space.
It is the ultimate responsibility of the installer to ensure that
proper concrete slab supports are used.
WARNING to the licensed design professional and/or building
contractor: It is your responsibility to be certain that the Grand
Meridian can be properly supported by the combustible oor
system on which the replace will rest.
For replace support foundations installed on concrete refer to
Appendix I and II (pages 17 & 18) for specic instructions.
Rebar locations
Lay-out the position of the replace and drill holes where
the rebar will be located. Secure the #3 rebar 4 inches into the
concrete foundation with ITW Epoxy or Simpson Epoxy. Follow
manufacturer’s instructions for installation of rebar into slab.
Wood Floor
Anchorage of replace to wood oor construction is required.
Refer to Figure 8 for anchorage dimensions. Four anchors are
required to attach to the sub-ooring framing.
Crawl Space or Upper Floor:
For installation of rebox over combustible crawl spaces or
upper oors, anchorage of the rebox is required. Illustrations
of examples of possible anchorage methods are shown in
Figures 5 thru 7 depending upon the type of oor framing. Final
method of anchorage is to be determined by licensed design
professional.

7
For conventional framing, where the oor joists are parallel
with the sides of the rebox, the addition of oor joists to align
with the anchor brackets allows the brackets to be directly
connected to the oor joists.
Note that additional oor joists may be required to support
the weight of the rebox and chimney. Where the oor joists
run parallel to the front of the rebox, anchorage can be
accomplished in like manner as shown in Figure 5 using
blocking between the oor joist.
For oors supported by I-Joists, the method of anchorage is
illustrated in Figures 6 and 7. Figure 10 illustrates the general
arrangement of anchorage to oor framing.
It is important to take into consideration that the load for the
Grand Meridian Fireplace must be considered as additional
dead load that will have to be supported by the oor framing.
Additional oor joists or I-joists may be required as determined
by the licensed design professional.
The dead weights for the replace are noted in Table I. It is
the task and responsibility of the general contractor/installer to
see that the proper reinforcement for weight loads are made by
a licensed design professional prior to the replace installation.
As stated above, it is desirable to place additional framing
for alignment of anchor rods. Refer to Figure 10 for anchor rod
locations.
Figure 5
Floor Sheathing
not shown for
clarity
Anchor Bracket
Assembly
EXAMPLE ONLY
2X FLOOR JOIST
2X FLOOR JOIST
A35 Brackets
(16 required)
I-Joist
Simpson
Strong-Tie
A-35 or
equivalent
Figure 6
I-Joist Anchoring
Top View
Example Only
I-JOISTS
Anchor
Brackets
Figure 7
I-Joist
Anchoring
Bottom
View
Example Only

8
Grand Meridian Weight Determinations
The following are dead load weight estimates for the Grand Meridian Fireplace.
Table I
Fireplace Model MM39VF MM44VF MM49VF
Fireplace Weight 809 lbs. 896 lbs. 987 lbs.
Mortar, Rebar &
Ready Mix Concrete 350 lbs. 357 lbs. 364 lbs.
Firebrick Lining 333 lbs. 345 lbs. 356 lbs.
Floor Area 43” x 28” (8.12 ft²) 48” x 28” (9.33 ft²) 53” x 28” (10.30 ft²)
Other Weight Considerations:
Fireplace nished facing (surround): This information needs to be obtained from the contractor.
Table II - Deection Limits
Construction L S or W D +L1
Floor Members I/360 --- I/240
1 For wood structural members having a moisture content of less than 16 per cent at time of installation and used under dry
conditions, the deection resulting from L + 0.5D is permitted to be substituted for the deection resulting from L + D.
Note that IHP cannot accept responsibility for structural oor support details. All drawings are presented as mere illustrations to
indicate the presence of the underlying oor system. It is the responsibility of the general contractor/installer to consult with a local
licensed design professional for guidance in building a proper oor support system.
F
10"
4"
Figure 8
A
Model A
MM39VF 38-3/4”
MM44VF 43-3/4”
MM49VF 48-3/4”
Figure 9
Fireplace
outline
10”
Typical Anchorage
Layout
EXAMPLE ONLY
SECTION VIEW
ROTATED 90CW
Figure 10

9
Clearances
The Importance of Clearances
Warning to the structural engineer and/or building contractor:
It is your responsibility to be certain that the Grand Meridian
Fireplace can be properly supported by the combustible oor
system on which the replace will rest. Be advised that this
engineering equation will be in addition to any live or dead
weights that the oor has to carry.
Clearances to Combustibles
Nothing is more important than paying strict attention to
giving clearance between replace surfaces and surrounding
“combustibles” the most common of which are:
• Drywall
• Wood ooring
• Plywood sub-ooring
• Framing materials
• Particle board
• Mill board
• Plywood paneling
Required Clearances are:
Unit front, sides, rear: .......................................... 0"
Combustible Floor: .............................................0"
Combustible Sheathing above opening top: ....... 8" (200 mm)
Sheathing or trim to opening sides: ....................8" (200 mm)
Mantle above opening: ....................................... 12" (300 mm)
Opening to sidewall: ........................................... 24" (500 mm)
Insulation from rebox: ....................................... 0"
The Grand Meridian Vent-Free replace may be installed
at “zero clearance” to plywood sheathing and to uninsulated
wood framing members at the unit bottom, sides, rear and top
when used for enclosing any listed vent-free gas-red log set
with maximum heat input ratings up to 40,000 Btu/hr. However,
when a Vent-Free replace is to be installed on carpeting, wood
ooring, or any combustible material other than tile or concrete,
the Vent-Free replace shall then be installed on a metal or
wood platform extending the full width and depth of the Vent-
Free replace.
Clearance to Combustible Trim:
Grand Meridian Vent-Free Fireplaces are designed to be
custom nished with facing trim and mantle to be an owner
option. However, all such trim material must meet standard
replace code requirements.
Non-combustible facing material must be applied to a
minimum of eight inches (8”) beyond the sides of the nished
opening of the Vent-Free replace and non-combustible facing
material must cover a minimum of twelve inches (12”) above
the nished opening of the installed unit.
Figure 11
1-1/2”
8” MIN
NON-
COMBUSTIBLE
FACIA
Figure 12
1-1/2”
12” MIN
NON-COMBUSTIBLE
FACIA
Clearance to combustible trim are those distances required
to ensure that combustible mantle and facing material will not
be exposed to excessive heat while the unit is operating.
These clearances should be adequate to prevent
discoloration or warping of trim facings due to heat. However,
circumstances unique to each installation create variables that
may be beyond the scope of this manual. Therefore be sure
to follow gas log appliance manufacturer’s explicit installation
instructions regarding all minimum trim facing, mantle height
and side wall clearance requirements.
Figure 13
Parts of the combustible mantle assembly located above
and projecting more than one and one-half inches (1-1/2”)
inches from the rebox opening shall be kept at least twelve
inches (12”) from the top of the opening.
Mantle shelves with horizontal projection of ten inches (10”)
from the face of the replace must be held to a minimum vertical
distance of twenty inches (20”) from the top of the nished
replace opening.
Note: Mantle height clearances may vary among gas log
appliance manufacturers or with the use of rebox canopies.
Be sure to follow the gas log appliance manufacturer’s
explicit installation instructions for mantle height clearance
requirements.

10
Interior Wall Materials:
Wall materials, such as drywall, should be set ush with
the rough front face of the Vent-Free replace. This will allow
for placement of required non-combustible surround material in
such a way that the surround material can lay at against the
nished wall surface and also align with the leading edge of the
re brick interior of the Vent-Free replace (see Figure 15).
Trim Facings:
Parts of the combustible mantle assembly located along
the sides of the rebox opening, which project more than one
and one-half inches (1-1/2”) from the face of the replace, shall
be kept at least eight inches (8”) from the rebox opening.
Adjoining Room Walls:
Interior wall surfaces of adjoining room walls must be at a
minimum horizontal measure of twenty four inches (24”) away
from the nished opening of the Vent-Free replace.
D1
W
1-1/2”
8” MIN. NON-COMBUSTIBLE MATERIAL
FRAMING
Figure 14
Model W D1
MM39VF 43” 73-1/2”
MM44VF 48” 77”
MM49VF 53” 80-1/2”
1-1/2”
8” MIN
20”
MIN
8” MIN. NON-COMBUSTIBLE MATERIAL
FRAMING
Figure 15
Air for Combustion and Ventilation
Energy efcient homes require homes to be airtight but at the
same time provide sufcient fresh air to breathe. Fresh air
enters the home through air conditioning duct vents, around
doors and windows but also must provide enough fresh air for
proper combustion on all fuel-burning appliances in the home.
Exhaust fans, replaces, clothes dryers, and fuel-burning
appliances draw air from the house to operate. You must provide
adequate fresh air for these appliances. This will insure proper
venting of vented fuel-burning appliances.
Non-combustible
Flex Hose
Figure 16 Exterior
Providing Adequate Ventilation
In accordance with the National Fuel Gas Code NFPA 54/ANSI
Z223.1, Section 5.3, Air for Combustion and Ventilation, all
spaces in homes fall into one of the three following ventilation
classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The following information 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 homes of unusually tight construction, you must provide
additional fresh air. Unusually tight construction is dened as
construction where:
a. Walls and ceilings exposed to the outside atmosphere have
a continuous water vapor retarder with a rating of one perm*
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
oors, between wall-ceiling joints, between wall panels, at
penetrations for plumbing, electrical, and gas lines, and
other openings.
* A perm is a unit of permeance or water vapor transmission,
the US perm-inch is dened as the passage of 1 grain of vapor
through 1 square foot of 1 inch thick material in 1 hour under a
pressure difference of 1 inch of mercury.
If your home meets all the three criteria above, you must provide
additional fresh air.

11
Unconned Space
An unconned space has a minimum total air volume of
50 cu.ft. (cubic feet) for each 1,000 Btu/Hr input rating of all
appliances in the total space (cu.ft. = length x width x height
of space). Include adjoining rooms only if there are doorless
passageways or ventilation grills between the rooms. If the Btu
per 50 cu.ft. is less than 1,000 Btu/Hr, then fresh air will be
provided by the natural air ow into the house.
Conned Space
A conned space has an air volume of less than 50 cu.ft. for
each 1,000 Btu/Hr input rating of all appliances in the space (cu.
ft. = length x width x height of space). Include adjoining rooms
only if there are door less passageways or ventilation grills
between the rooms.
Determining Total Air Volume
Use this work sheet to determine if you have a conned
or unconned space. The space to be considered includes not
only the room in which you will install the replace but also any
adjoining rooms with ventilation grills between them or door
less passageways.
1. Determine the total volume of your space
L x W x H = _______ cu.ft.
Example: Space size = 20 ft. long x 20 ft. wide x 8 ft. high
(ceiling height) = 3,200 cu.ft.
If adjoining ventilation to adjoining room is supplied with
grills or openings, add the volume of these rooms to the total
volume of the space.
2. Divide the space volume by 50 cu.ft. to determine the
maximum Btu/Hr the space can support.
_______ cu.ft. (volume of space)
50 cu ft. = (Maximum Btu/Hr the space can support)
Example: 3200 cu ft. (Volume of space) / 50 cu. Ft. = 64.0 or
64,000 (maximum Btu/Hr the space can support.)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free replace _______ Btu/hr
Gas water heater* _______ Btu/hr
Gas furnace _______ Btu/hr
Vented gas heater _______ Btu/hr
Gas replace logs _______ Btu/hr
Other gas appliances* _______ Btu/hr
Total = _______ Btu/hr
Example: Gas water heater 40,000 Btu/hr
Vent-free replace +36,000 Btu/hr
Total = 76,000 Btu/hr
* Do not include direct-vented gas appliances. Direct vent draws
combustion air from the outdoors and vents to the outdoors.
4. Compare the maximum Btu/Hr the space can support with
the actual amount of Btu/Hr used.
_________ Btu/Hr (maximum the space can support)
_________ Btu/Hr (actual amount of Btu/Hr used)
Example:
64,000 Btu/Hr (maximum the space can support)
76,000 Btu/Hr (actual amount of Btu/Hr used)
The space in the previous example was a conned space
because the actual Btu/Hr used was more than the maximum
Btu/Hr the space could support. If you nd you have a Conned
Space, you must provide additional fresh air. Your options are
as follows:
a) Re-work worksheet, adding the space of an adjoining room
that may not have qualied for the extra volume. If the extra
space provides enough volume to convert the area to an
unconned space, remove door to adjoining room or add
ventilation grills between rooms.
b) Vent room directly to the outdoors.
c) Install a lower Btu/Hr gas log (if lower Btu/Hr size makes
room unconned).
If the actual Btu/Hr used is less than the maximum Btu/Hr the
space can support, the space is an unconned space. You will
need no additional fresh air ventilation.
WARNING: If the area in which the heater may be operated
is smaller than that dened as an unconned space, provide
adequate combustion and ventilation air by one of the methods
described in the National Fuel Gas Code, ANSI Z223.1 Section
5.3 or applicable local codes.
Local codes may have stricter denitions for conned space
and/or for unusually tight construction. Installing our optional
outside air kit may allow the space to be classied as not being
unusually tight or being an unconned space. Check you local
codes.
IMPORTANT: Do not provide openings for inlet or outlet air
into an attic if the attic has a thermostat-controlled power vent.
Heated air entering the attic will activate the power vent.

12
Important Pre-installation Information
Overview
You will nd that the Grand Meridian Fireplace is designed for
complete assembly at your construction site with all necessary
items delivered consisting of interlocking precast parts, 50 lbs.
of mortar and rebar.
The parts of the replace are made of incredibly strong blend of
specialty cement and a lightweight aggregate.
The design of the replace calls for the installation of a refractory
re brick liner. This should be a minimum of 1-1/8” thick. The
liner will be applied within the walls of the rebox. Modular
rebrick panels are also available from IHP.
Additional Materials Required:
1) Ready-Mix concrete - 2 cu.ft.
SURFACE CRACKS - The Grand Meridian FIREPLACES are
manufactured using high quality materials. During the drying
process, surface cracking may occur. These small cracks
(under 1/16” will not affect the replace safety or performance).
During the assembly process, ll surface cracks with thin-set
mortar and brush when drying for a smooth surface nish.
Leveling and Aligning Components:
It is important to assemble all Vent-Free replace components
ush, level and square. Since it is not intended that mortar
be used to lay a mortar joint of any measurable thickness as
is typical when laying brick or concrete block, adjustments in
component height and level alignments are accomplished with
the use of small shims. These shims can be tapped into place to
level and align components. Once the Mortar is set, the shims
must be removed completely.
Be sure to re-grout any and all gaps where shims have been
inserted and then removed or where contact surfaces have
been separated by shim leveling.
Field Assembly Procedures
1) Mixing the mortar – You will require a 50 lb. bucket of mortar
which will be more than enough to adequately afx all the
replace components, one to the next. The mortar is premixed
and dry and is to be used to adhere all the replace components.
Be sure to use clean water and work it up into a mixture that
is pasty but not lumpy. If it is too thin, the components will
not adhere. Some trial and error may be necessary. You will
want to apply the mixture with a standard grout bag.
2) Moisten all surfaces which will have grout applied prior
to assembly. This will minimize shrinkage and cracks
developing in the joint areas. Best way to accomplish this is
with a bucket of water and a large sponge. Dip sponge into
water and apply a liberal amount of water to the grout joint
surface several minutes before the part is to be assembled.
The water will absorb into the surface allowing the grout to
properly cure.
3) Assembly of the Components – Once you have found the
proper consistency of the mixture, load it into the grout
bag and then place the components together applying
the mixture directly to the components where they come
together. As a rule, you can gure that you should lay down
about ½” (one-half inch) of a thread of mortar. The line of
mortar should be approximately ½” (one-half inch) away
from all the edges of each separate component.
The mortar has a considerable amount of holding power so
do not overload the components with too much mortar.
4) You will notice that some mortar will “ooze out” when you
place the next component on top of or next to the component
you previously place. This is to be expected – it means the
two pieces have properly bonded -- and you will want to
swipe the excess away with a trowel. It is never intended
that the surfaces of the components are to be completely
covered with mortar.
5) Do not apply the mortar in thick bands even if the component
you are working with is larger than the rest. You will want to
apply “stripes” of mortar in these situations.
6) Making Sure Components Are Level – It is extremely
important that you pay careful attention to how you are
assembling the replace. Since every component builds
on the next, it is critical, that from the beginning, you are
checking that the components are tting together to be level
and ush. If you have to make any kind of an adjustment,
do not try to do it “by loading an opening” with mortar. That
is completely unacceptable, resulting in a replace that will
not be plumb or level. What you are advised to do is make
use of shims. You will nd these supplied with the replace
and you can nudge them in between openings to achieve
the precision you need in making component adjustments.
7) Once you have removed the shims, you will want to cover
any gaps that may have resulted with the grout.
Warning: All surfaces where grout is applied must
have water sponged on several minutes prior to
assembly. This will minimize cracking of grout joint
and provide maximum strength.

13
Fireplace Assembly Procedures
TOOLS NEEDED FOR INSTALLATION:
• One 4 ft. level
• Roto-hammer with ½” drill bit
• Drill motor with mixer blade to mix Mortar
• Two empty 5 gallon buckets to mix Mortar
• One wheelbarrow and shovel to mix concrete
• Grout bag
• Triangular masonry trowel
• Rubber hammer
• Sponge and 2 water buckets to wipe down and moisten
parts prior to applying mortar
MATERIALS NEEDED FOR INSTALLATION:
• Epoxy for securing rebar in footing / foundation
• Three (3) - 90 lb. bags of ready mix concrete with ¼” or
smaller aggregate
MATERIALS INCLUDED:
• 8 - ⅜” Rebar x 28” Long
• 8 - ⅜” Rebar x 12” Long
• 1 - 50 lb. bucket Mortar
• 20 - Small Wood Shims
Note - Wipe excess water from surface prior to applying grout.
This will help grout to adhere to surface during assembly.
Warning: All surfaces where grout is applied must have
water sponged on several minutes prior to assembly. This will
minimize cracking of grout joint and provide maximum strength.
Place the Grand Meridian Fireplace hearth base on top of your
non-combustible oor. For concrete slabs, supporting oor
needs to be rated at ASTM 90.
1) Draw an outline of the hearth area based on the dimensions
shown in Figure 17. Position Hearth slabs and mark rebar
center locations. Drill 4 inches into concrete slab and secure
the 8 pieces of 12 inch rebar with epoxy.
Figure 17 Left Side Hearth 2nd
Right Side Hearth 1st
Model W
MM39VF 43”
MM44VF 48”
MM49VF 53”
W
28”
Apply mortar
between joints
12 inch rebar
2) Mix a batch of mortar and prepare Right Side Hearth bottom
surface to be bonded as shown in Figure 18.
Figure 18
1/2” AWAY
FROM EDGES
1/2” MORTAR
BEAD TYPICAL
Hearth section shown prepared
for Right Side position
APPLY MORTAR
BEAD TO ALL
MATING SURFACES
3) Align Right Side Hearth to the outline created. The overall
width should allow for an approximate gap of 1/8” between
slabs for the additional mortar to unite the remaining slab.
Check for surface atness, level if necessary.
4) Apply mortar to the remaining Hearth except this time apply
beading on surface to be facing oor as shown in Figure
19.
Figure 19 Hearth shown prepared
for Left Side position
5) Before installing side walls, conrm placement of outside
combustion air access (if required), this can be installed
either side depending on which side is accessible to outside
combustion air (all diagrams in this manual show the
combustion air inlet hole on the right side). Prepare side
wall and rear wall mating surfaces with the prepared mortar
and begin assembly.
Figure 20
Side Wall shown prepared for Right Side Air
Access. For Left Side bead opposite side.
1/2” AWAY
FROM EDGES
6) Keep the assembly of the next sections of the rebox side
walls moving up, keeping components moist, mixing mortar
as you need it and threading the mortar appropriately as
you stack each section, one onto the next. Constantly check
for squareness and levelness while building each course of
block. As you complete each section, make certain that you
adhere the mortar at each and every joint.

14
Figure 21
Combustion Air Access
Right or Left (Right shown).
Apply
mortar
Apply mortar
Side Wall
Rear Wall
Side Wall
7) When you have arranged all the components into place
and you are working on the top rear rebox, check that
your work is level. If you need to, you can make some
adjustments in the top surface of the box assembly
simply by using shims. Once you are satised with the
degree of levelness, you can address any gap that may
have occurred with an appropriate amount of mortar.
Although you are cautioned to use mortar sparingly
because it does have such holding power, you should
look over the rebox assembly at the end and ll any
gaps with mortar especially at joint connections.
Adjustments must be made to ensure the replace is level
and square while the mortar is still wet.
8) After fourth row of walls are in place, add 36” rebar to all
cells as shown in Figure 22. The rebar should enter the
holes in the Hearth and lie adjacent to the 12” rebar secured
in suboor. Then ll cells with approx. 2 cu.ft. Ready-Mix
Concrete.
Figure 22
12 inch
rebar
Add rebar after
fourth row
9) Temporarily place Lintel between side walls, making sure
it is ush to the front and snug at the inside. Check for
alignment. Remove Lintel and apply mortar on surfaces to
be mated. Install Lintel.
10) Install Lower Rear Dome ush to the rear walls as shown in
Figure 23.
Figure 23
Lintel
Lower
Rear Dome
11) Place Lower Side Domes between Lintel and Lower
Rear Dome to verify t. The face with the rating plate faces
the inside of the rebox as shown in Figure 24. Remove
and prepare mating surfaces with mortar. Assemble Lower
Dome Sides and check that all four top surfaces are level
with each other. Shim if necessary.
Figure 24 Lower Dome Sides
(Rating Plate faces inside)
12) Now install the Smoke Dome Tops. Align outer edges with
Lower Dome Sides. Check for atness and squareness.
Figure 25

15
Raised and Flush Hearth Application:
If you would prefer to have a raised hearth, the Vent-Free
box can be raised to the desired height using wood studs or
concrete blocks.
Figure 26
Concrete Block
Raised Platform
When determining raised hearth height, be sure to
allow for the 3” thick rebox hearth and 1-1/2” thick rebrick
oor, in addition to the height of base platform.
Figure 27
Raised Wood
Platform
For a “ush hearth” (replace oor ush with the room’s
oor) the base plate can be omitted from the assembly and the
rebox walls built directly on the concrete support slab. The
re brick oor of the rebox is then set directly to the concrete
support slab. This makes the replace nished re brick oor
approximately one and one-half inches (1-1/2”) above the top
of the concrete support slab.
Gas Piping Installation
The provision for installation of a gas pipe is only for
connection to a Vent free decorative gas log sets meeting
standard ANSI Z21.11.2
Familiarize yourself with requirements for installation as
outlined by the National Fuel Gas Code, ANSI Z223.1.
This gas pipe provision must only be connected to an
approved vent-free gas log heater certied to ANSI Z21.11.2
heater standard. Check local building codes for specic pipe
and material requirements.
1) Gas piping can be routed from the oor, rear or side walls.
With a masonry drill, follow the instructions from the gas
appliance manufacturer. Any wires must be routed through
separate conduit. Make sure provisions are made for
access to manual shut-off valve.
Figure 28 CSA Certied Manual
Shut-off Valve
Tee-joint
Sediment
Trap
Approved
Flexible
Gas Line 3”
Minimum
Pipe
Nipple
Cap
From External
Regulator
(11-14” W.C. pressure)
2) After routing piping, ll hole around pipe with mortar.
Electrical Line Feed
Electrical line feed can be routed through the Standard
rebox back wall, side walls or oor by drilling an appropriately
sized hole using a masonry drill bit. Be sure to follow the
Vent free decorative gas log Manufacturer’s explicit electrical
line connection instructions for vented masonry replace
installations.
NOTE: Gas line and electric line must be routed through
separate access holes.
Firebrick SideGas or
Electric Line
Figure 29
IMPORTANT: All access holes must be grouted with mortar to
seal any gaps or cracks.

16
Firebrick Liner Installation
It is required that the interior sides, rear and bottom be lined
with minimum 1-1/8” thick rebrick. Pre-fabricated re brick liner
walls can make the installation easier.
All required through-wall accesses (gas and electrical
line feeds and combustion air supply access holes) should be
drilled before the required re brick lining is installed.
Modular Firebrick Lining
If using IHP Firebrick Liners, simply use an extra bucket
of mortar. Install Hearth Liner rst, rear next and sides last.
Consider if brackets for grates will be required, also if pre-drilling
is required for gas lines, electrical or if the outside combustion
air kit is to be installed.
The following Firebrick Patterns are available from IHP:
MM(XX)SHBL- Herring Bone
Figure 30
MM(XX)FRBL- Running Bond
Figure 31
Initial Fireplace Operation
Follow the gas appliance manufacturers’ requirements
for lighting and operating your vent free log. When rst operating
the replace, open a window in the room to allow smells created
from the heater and replace curing.
We suggest operating the heater for several 30 minute
intervals allowing the replace to cool for an hour in between.
This will allow any moisture in the brick and replace to
escape.
Keep in mind that it may require several operations
to completely remove any smell from the operation of a vent-
free heater and replace. If this condition continues, contact
your gas appliance dealer to inspect the gas heater for proper
operation.
You may have further questions about installation,
operation, or troubleshooting. Please contact your
IHP dealer for any questions or concerns a. When
calling your dealer please have your model and serial
numbers of your replace ready. You can also visit our
web site at www.Astria.US.com
Note: Use only original replacement parts.
This will protect your warranty coverage for parts
replaced under warranty.
Contact authorized dealers of this product. To locate
a dealer in your area contact IHP at 1-800-655-2008.
You can also visit our web site at www.Astria.US.com.
When calling your dealer, have ready:
• your name
• your address
• model and serial numbers of your replace
• how replace was malfunctioning
• purchase date
Usually, we require that the part is returned to the
factory.
Technical Service
Replacement Parts

17
AppendixI
For installations regulated by the International Residential Code, the
support foundation for the fireplace installed on concrete shall
consist of aminimum of6inchesthick reinforced concrete slab. The minimum specified compressive strength of
f’c,shall be as
required in Table R402.2 of the International Residential Code (IRC). Concrete subject to moderate or severe weathering as indicated in Figure R301.2(3) of the International Residential Code (IRC) shall be air entrained as specified in TableR402.2ofthe International
Residential Code (IRC). The maximum weight of fly ash, other pozzolans, silica fume, slag or blended cements that is included in
concrete mixtures for garage floor slabs and for exterior porches, carport slabs and steps that will be exposed to deicingchemicals
shall not exceed the percentages of the total weight of cementitious materials specified in Section 4.2.3 of ACI 318. Materials
used to
produceconcrete and testingthereofshall comply with theapplicable standards listed in Chapter 3 of ACI 318.
For installations regulated by the International Building Code (IBC), the support foundation for the fireplace installed on concrete shall consist of a minimum of 6 inches thick reinforced concrete slab. The concrete strength and durability shall comply with Sections 1903, 1904 and 1905 of the International Building Code (IBC).
TABLE R402.2 MINIMUM SPECIFIED COMPRESSIVE STRENGTH OF CONCRETE
MINIMUM SPECIFIED COMPRESSIVE STRENGTHa(f’c)
Weathering Potentialb
TYPE OR LOCATION OF CONCRETE CONSTRUCTION Negligible Moderate Severe
Basement walls, foundations and other concrete not exposed to theweather 2,500 2,500 2,500c
Basement slabs and interior slabs on grade, except garage floor slabs 2,500 2,500 2,500c
Basement walls, foundationwalls, exterior walls and other vertical concrete
work exposed to the weather
2,500 3,000d3,000d
Porches, carport slabs and steps exposed to the weather, and garage floor slabs2,500 3,000d,e,f3,500d,e,f
a. Strengthat28dayspsi. b. SeeFigureR301.2(3) forweathering potential.
c. Concrete in these locationsthatmay be subject to freezing and thawing during construction shall be air-entrained concrete in
accordance with Footnote d.
d. Concrete shall be air-entrained.Total air content(percent by volume of concrete) shall be not less than 5 percent or more than
7 percent.
e. See Section R402.2 for maximumcementitious materials content.
f. For garagefloorswith a steel troweled finish, reduction of thetotal air content (percent by volume of concrete) to not less than
3 percentis permitted if the specified compressive strength of the concrete is increased to not less than 4,000 psi.

18
AppendixII
FIGURE R301.2(3) WEATHERING PROBABILITY MAPFOR CONCRETE
a. Alaskaand Hawaii are classified as severe and negligible, respectively.
b. Lines defining areas are approximate only. Local conditions may be more or less severe than indicated by region classification. A
severe classificationiswhere weather conditions result in significant snowfall combined with extended periods during which there is
little or no natural thawing causing deicing salts to be used extensively.

WARRANTY
KEEP THIS WARRANTY
IHP LIMITED WARRANTIES
New Products
IHP warrants all Grand Meridian Fireplaces to be free from defects in materials that adversely affect replace performance for
a period of ten (10) years from the date of purchase, subject to the terms and conditions of this limited warranty. IHP does not
warrant accessory chimney, outside air ducts, gas control or burner system, ceramic logs, and devices not manufactured by IHP.
Valves and electronic parts are only covered for one year parts and labor per the log set manufacturer’s warranty.
This warranty covers only products manufactured by IHP, specically the modular concrete rebox, and NO WARRANTY,
EXPRESS OR IMPLIED, EXTENDS TO ANY OF THE HARDWARE, FOUNDATION, VENTING, DUCTS, OR ACCESSORIES.
THIS WARRANTY DOES NOT COVER DRAFTING, SMOKING, OR SOOTING OF THE FIREPLACE SYSTEM. Factors beyond
the manufacturer’s control may affect drafting, smoking, and sooting, IHP cannot guarantee these aspects of performance.
If a component is found to be defective under the terms of this warranty, the party this warranty is extended to shall notify IHP, 1508
Elm Hill Pike Suite 108, Nashville, TN 37210 in writing, by registered mail, within thirty (30) days following the discovery of the
defect within the warranty period. The letter shall contain (1) the date of purchase; (2) place of purchase; (3) address of installation;
(4) name, address and phone number of the homeowner; and (5) a brief description of the defect.
IHP, or any entity thereof, is not responsible for any labor costs or indirect costs incurred for the replacement of defective
components.
IHP is not responsible for misuse or mishandling of component parts. Nothing in this warranty makes IHP, or any entity thereof,
liable in any respect for any injury or damage to the building or structure in which the replace has been installed or to the persons
or property therein arising out of the use, misuse, or installation of properly manufactured IHP product.
IHP, OR ANY ENTITY THEREOF, SHALL NOT BE HELD LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES
OR EXPENSES ARISING OUT OF THE USE OF THE FIREPLACE. ALL SUCH DAMAGES AND EXPENSES ARE HEREBY
EXCLUDED.
This warranty is null and void when the replaces are not installed pursuant to the installation instructions provided by IHP and
local building codes have not been followed completely.
This warranty applies only to those replaces installed in the continental United States, Hawaii, Alaska and Canada. If any part of
this warranty is found to be unenforceable,, the remaining parts shall remain in force and effect.
IHP HEREBY DISCLAIMS ALL GUARANTEES AND WARRANTIES, EXPRESS OR IMPLIED, BEYOND THE WARRANTIES
SET FORTH HEREIN.
CUSTOMER SERVICE & PARTS REPLACEMENT:
Parts and accessories may be purchased from your local dealer. Additional information is available from IHP. Accessory orders
will be accepted by mail, or you may call to order Monday through Friday from 8:00 a.m. to 5:00 p.m. (Central Standard Time) at:
1-800-655-2008.
Please complete the following information for future reference and warranty verication:
Model ( located on product or identication tag ) _________________
Serial No. ( located on product or identication tag ) ______________
Date Purchased __________________
Keep receipt for warranty verication.
Innovative Hearth Products reserves the right to make changes at any time, without notice, in design,
materials, specifications, prices and also to discontinue colors, styles and products. Consult your local
distributor for fireplace code information.
Printed in U.S.A. © 2014 IHP LLC
P/N 125162-01 Rev. B 02/2014.
P125162 01 1508 Elm Hill Pike, Suite 108
Nashville, TN 37210
1-800-655-2008
www.IHP.US.com