Astria MM33 User manual

INSTALLATION AND OPERATION INSTRUCTIONS
Grand Meridian Wood Burning Masonry Firebox
MODELS
MM33, MM39, MM44, MM49, MM63
IF FIREPLACE IS TO BE INSTALLED DIRECTLY ON ANY COMBUSTIBLE MATERIAL, A METAL BASE IS REQUIRED.
SAVE THIS BOOK
This book is valuable. In addition to instructing you on how to install and maintain your appliance, it also
contains information that will enable you to obtain replacement parts or accessory items when needed. Keep
it with your other important papers.
This fireplace is approved for use as a wood burning fireplace or for use with a vented gas log approved to ANSI
Z21.60 or Z21.84 standards. It has not been tested or approved for unvented gas logs.
This wood burning fireplace complies with UL127 standard as a FACTORY BUILT APPLIANCE.
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property
damage. Refer to this manual for correct installation and operational procedures. For assistance or additional
information consult a qualified installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
Do not store gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
P/N 125160-01 Rev. D 02/2017
Report No. 08-154
PFS
®
USC
NOTE: DIAGRAMS AND ILLUSTRATIONS THROUGHOUT THE MANUAL ARE NOT TO SCALE.
ICC Evaluation Services
Report No. 2401
P125160 01
Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 125160-02.

Astria.us.com 125160-01_D2
TABLE OF CONTENTS
SAFETY
Safety.............................................................................................2
Specifications.................................................................................4
Product Overview...........................................................................7
Pre-installation Preparation............................................................8
Venting Installation ......................................................................13
Optional Gas Line Installation ......................................................18
Optional Electrical Connection Installation....................................18
Supporting Floor System .............................................................19
Combustible Floor Installation .....................................................21
Fireplace Installation ....................................................................23
Firebrick Installation.....................................................................32
Operation and Maintenance Guidelines........................................33
Technical Service .........................................................................34
Replacement Parts ......................................................................34
Accessories .................................................................................35
Parts ...........................................................................................38
Appendix I ...................................................................................44
Appendix II ..................................................................................45
Warranty .....................................................................................47
IMPORTANT: Check local codes before installing this
fireplace.
Before beginning the installation of the fireplace, read these instruc-
tions through completely.
• This INNOVATIVE HEARTH PRODUCTS, LLC (IHP) fireplace and
its components are safe when installed according to this installa-
tion manual. Unless you use IHP components, which have been
designed and tested for the fireplace system, you may cause a fire
hazard.
• The IHP warranty will be voided by and IHP disclaims any respon-
sibility for the following actions.
a. Modification of the fireplace, components, doors, air inlet system
and damper control.
b. Use of any component part not manufactured or approved by
IHP in combination with an IHP fireplace system.
Proper installation is the most important step in ensuring safe and
continuous operation of the fireplace. Consult the local building codes
as to the particular requirements concerned with the installation of
all factory built fireplaces.
WARNING: Do not install a fireplace or other prod-
ucts not specified for use with this fireplace.
This fireplace is not intended to be used as a sub-
stitute for a furnace to heat an entire home. Use for
supplemental heat only.
FOR YOUR SAFETY
• Do not store or use gasoline or any other flammable
vapors or liquids in the vicinity of this or any other
appliance.
• Due to high temperatures, the appliance should be
located out of traffic and away from furniture and
draperies.
• Do not place clothing or other flammable materials
on or near the appliance.
• Never leave children unattended when a fire is
burning in the fireplace.
WARNING: Use solid wood or processed solid fuel
fire logs only. When processed wood fuel fire logs are
used, do not poke or stir the logs while they are burn-
ing. Use only fire logs that have been evaluated for the
application in fireplace and refer to fire log warnings
and caution markings on packaging prior to use.
WARNING: Always leave glass doors fully opened
or fully closed when operating fireplace.
WARNING: If fireplace is to be installed on com-
bustible material, a Metal Base must be used. See
Accessories on page 35.

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125160-01_D 3
SAFETY Continued
WARNING: THIS FIREPLACE HAS NOT BEEN
TESTED FOR USE WITH AN UNVENTED GAS LOG
SET. TO REDUCE THE RISK OF FIRE OR INJURY, DO
NOT INSTALL AN UNVENTED GAS LOG SET INTO
FIREPLACE.
WARNING: THIS FIREPLACE HAS BEEN TESTED
FOR USE WITH OPTIONAL GLASS DOORS FROM
MASON-LITE ONLY.
GUIDELINES FOR USE:
All current and future users of IHP Fireplaces are charged with the
responsibility for full knowledge of the information contained within
this manual which includes:
Strict requirements for assembly.
Detailed instructions for installation.
Cautionary guidelines for use.
On-going maintenance instructions.
It is the responsibility of the distributor, subcontractor and/or the
general contractor – whoever shoulders the liability for installation
of this product – to see that it works in complete compliance
with the guidelines and instructions in this manual. Note that the
general contractor is the party accountable for seeing that adequate
clearances are provided for all firebox surfaces per specifications in
this manual.
The Grand Meridian is Designed for Use Only with:
- Solid Wood Logs
- Plumbed LPG or Natural Gas Log Lighter.
- Plumbed ANSI Z21.60 or Z21.84 Decorative Gas Log.
DO NOT USE OR STORE GASOLINE OR OTHER
FLAMMABLE LIQUIDS OR GASES IN OR NEAR THE
FIREPLACE!
ATTENTION: A fire 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.
Before Beginning the Installation
Read these instructions carefully before beginning the installation
of this fireplace. Also, if installing an ANSI Z21.60 or Z21.84
Decorative Gas Log, read the gas log appliance manufacturer’s
literature regarding sizing and suitability for the installation into this
enclosure prior to installation.
Statement of Intended Use:
The Grand Meridian Fireplace is a modular refractory masonry unit
designed for field assembly. The firebox 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 fireplace. In addition to
the basic enclosure, a standard 1-1/8” thick, high temperature
refractory brick is required to line the interior of the firebox and can
be purchased from the manufacturer.
These fireplaces are not intended to serve as a primary heat source,
rather, the fireplace was expressly created as a supplemental source
of heat. The unit is designed for use with solid fuels such as cord
wood.
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.

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SPECIFICATIONS
Figure 1: MM33 Fireplace Overall Dimensions
ALL DIMENSIONS ARE IN INCHES.
*ALL DIMENSIONS ARE MINIMUM, MORTAR THICKNESS MAY ADD A TOTAL OF UP TO 1 INCH TO THE OVERALL HEIGHT.
Important: 2 inch minimum clearance to combustibles from the Dome Top must be maintained.
Note: If your installation is on combustible floor, the total fireplace height will increase due to the addition of the required metal platform.
B
B
AA SECTION B-B
SECTION A-A
Ø4" OUTSIDE AIR ACCESS
CAN BE INSTALLED ON THE
LEFT SIDE OF THE UNIT
22 1/2"
(572 mm)
18 1/2"
(470 mm)
4 1/2"
(115 mm)
53 3/4"
(1366 mm)
* MIN. 30"
(762 mm)
3" (77 mm)
24"
(610 mm)
Ø 12 1/4"
(312 mm)
7 3/4" (197 mm)
16"
(407 mm)
37"(940 mm)
23"
(585 mm)
21"
(534 mm)
22"
(559 mm)
11"
(280 mm)
32"(813 mm)
33"(839 mm)
28"
(712 mm)

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125160-01_D 5
D
H
H
J
J
A/2
Ø F
SECTION H-H
SECTION J-J
(REFRACTORY LINING NOT SHOWN)
B
C
A
E
21"
(534 mm)
10"
(254 mm)
4"(102 mm)
28"
(712 mm)
11"
(280 mm)
4 1/2"
(115 mm)
32"
(813 mm)
38"
(966 mm)
3" (77 mm)
7" (178 mm)
61 3/4"
(1569 mm)
MIN*
Ø 4 1/4" (108 mm)
23"
(585 mm)
Ø4" OUTSIDE COMBUSTION
AIR ACCESS MAY BE INSTALLED
ON THE RIGHT OR LEFT SIDE
Figure 2: MM39/44/49 Fireplace Overall Dimensions
SPECIFICATIONS Continued
ALL DIMENSIONS ARE IN INCHES.
*ALL DIMENSIONS ARE MINIMUM, MORTAR THICKNESS MAY ADD A TOTAL OF UP TO 1 INCH TO THE OVERALL HEIGHT.
Important: 2 inch minimum clearance to combustibles from the Dome Top must be maintained.
Note: If your installation is on combustible floor, the total fireplace height will increase due to the addition of the required metal platform.
Fireplace Overall Dimensions
Model A B C D E F
MM39 43"
(1093 mm)
39"
(991 mm)
28-½"
(724 mm)
27"
(686 mm)
38"
(966 mm)
Ø12-¼"
(312 mm)
MM44 48"
(1220 mm)
44"
(1118 mm)
33-½"
(851 mm)
32"
(813 mm)
43"
(1093 mm)
Ø12-¼"
(312 mm)
MM49 53"
(1347 mm)
49"
(1245 mm)
38-½"
(978 mm)
37"
(940 mm)
48"
(1220 mm)
Ø14-¼"
(362 mm)

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B
B
A
A
SECTION B-B
SECTION A-A
2 X 11"
(280 mm)
Ø4" OUTSIDE AIR ACCESS
CAN ALSO BE INSTALLED ON
THE LEFT SIDE OF THE UNIT.
28"
(712 mm)
52
1
/
2
" (1334 mm)
22
1
/
4
"
(566 mm) 67"(1702 mm)
21"
(534 mm)
23"(585 mm)
63"(1601 mm)
62"(1575 mm)
9 1/2"
(242 mm)
68
1
/
2
"
(1035 mm)
*MIN 4
1
/
2
"
(115 mm)
38
1
/
8
"
(969 mm)
3"
(77 mm)
7"
(178mm)
46" (1169 mm)
30
1
/
4
"
(769 mm)
7
3
/
4
" (197 mm)
7
3
/
4
" (197 mm)
35"
(889 mm)
15" (381mm)
2 X12"
Figure 3: MM63 Fireplace Overall Dimensions
ALL DIMENSIONS ARE IN INCHES.
*ALL DIMENSIONS ARE MINIMUM, MORTAR THICKNESS MAY ADD A TOTAL OF UP TO 1 INCH TO THE OVERALL HEIGHT.
Important: 2 inch minimum clearance to combustibles from the Dome Top must be maintained.
Note: If your installation is on combustible floor, the total fireplace height will increase due to the addition of the required metal platform.
SPECIFICATIONS Continued

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125160-01_D 7
PRODUCT OVERVIEW
Figure 4: Typical Installations
Internal Wall
Installation Corner
Installation
Full Projection
Installation
Flush
Installation
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
fireplace.
Please read and understand these instructions before installing
or operating.
PRODUCT OVERVIEW
The Grand Meridian Fireplaces are designed as factory-built blocks
to be assembled on-site. These fireplaces may be installed on either
combustible or non-combustible floors. In order for the fireplace
to be installed on a combustible floor though, it is necessary that
the fireplace be supported on a platform or sub-floor that is non-
combustible.
The Four Components of the Grand Meridian Fireplace:
• Combustible or Non-Combustible Floor
• Non-Combustible Raised Platform
• Firebox and Smoke Dome
• IHP chimney system required.
IMPORTANT: Follow the chimney pipe manufacturer’s instructions
on the installation of their specific flue system.
Careful step-by-step instructions for each phase of the installation
procedure will be given for the Grand Meridian conventional
radiant heat fireplaces. Those instructions generally fall into the
following categories:
• Spacing and clearance as it relates to combustible materials.
• Familiarity of installation for all components.
• The strength of the floor on which it rests.
• Chimney system measurements.
• Choice of materials and craftsmanship in fireplace and hearth
finishing.
Note that each of these topics will be covered in detail and that the
installer is expected to understand each phase completely before
going on to subsequent instructions.
ATTENTION: Be advised that all the illustrations in this manual are
for general reference only. Do not scale drawings. Actual design ele-
ments will vary from case to case. Pay attention to specified mini-
mum clearances to combustibles.
Testing and listing for these Grand Meridian Fireplaces has been
undertaken by the PFS Corporation.
ATTENTION: You may need a residential building permit to install
a Grand Meridian Fireplace. Consult local jurisdictions before you
get started!
If asked, advise the local authorities that the IHP Fireplace is
designed for installation per the National Fire Protection Association
Standard for Chimneys, Fireplaces, Vents and Solid Fuel-Burning
Appliances (NFPA211).
When choosing the location of your IHP Fireplace, keep in mind you
must maintain 2” minimum clearance from left, right and rear of
Fireplace to surrounding structure. Also, when choosing a location,
consider outside air requirements to determine if it will be on the
left or right side of the Fireplace. In the case of an island installation,
outside air accessibility may be obtained through sub flooring, see
Optional Outside Air Kit on page 13.

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PRE-INSTALLATION PREPARATION
WARNING: Do not pack required air spaces with
insulation or other materials.
Minimum/Maximum Chimney Height for Residential Installation
Minimum height of chimney, measured from base of fireplace to
flue gas outlet of termination, is 14 feet for straight flue or 17 feet
for a flue with one elbow set. Maximum distance between elbows
is 6 feet. For systems with two elbow sets, minimum height is 22
feet. Maximum height of any system is 40 feet. This measurement
includes fireplace, chimney sections and height of termination as-
sembly at level of the flue gas outlet (see Figure 20, page 16).
FRAMING
1. Frame opening for fireplace using dimensions shown in
Figures 6 and 7, page 9.
2. If fireplace is to be installed directly on carpeting, tile (other
than ceramic) or any combustible material other than wood
flooring, fireplace must be installed upon a metal extending
full width and depth of fireplace.
3. Set fireplace directly in front of this opening and slide unit
back until nailing flanges touch side framing.
4. Check level of the fireplace and shim with sheet metal if
necessary.
5. Before securing fireplace to prepared framing, ember
protector (provided) must be placed between hearth
extension (not supplied) and under bottom front edge of
fireplace to protect against glowing embers falling through.
If fireplace is to be installed on a raised platform, a Z-type
ember protector (not supplied) must be fabricated to fit your
required platform height. Ember protector should extend
under fireplace a minimum of 1-½". Ember protector should
be made of galvanized sheet metal (26 gauge minimum to
prevent corrosion.
6. Using screws or nails, secure fireplace to framing through
flanges located on sides of fireplace.
SELECTING LOCATION
To determine the safest and most efficient location for the fireplace,
you must take into consideration the following guidelines:
1. The location must allow for proper clearances (see Figures 6
and 7, page 9).
2. Consider a location where fireplace will not be affected by
drafts, air conditioning ducts, windows or doors.
3. A location that avoids cutting of joists or roof rafters will make
installation easier.
4. An outside air kit is available with this fireplace (see Optional
Outside Air Kit on page 13).
MINIMUM CLEARANCE TO COMBUSTIBLES
The distance to be maintained from the surfaces of the fireplace to
combustibles must be observed. Below is a list of the most common
combustible materials to name a few:
Drywall Wood Flooring Plywood
Sub-Flooring Wood Framing Mill Board
Particle Board Plywood Paneling
Maintain the following clearances:
Unit sides, rear, Dome sides, rear & top 2" (51 mm) min.
Combustible Floors (MM33,39,44,49) 6" (153 mm) min.
Combustible Floors (MM63 only) 8" (204 mm) min.
Combustible Sheathing above opening top 18" (548 mm) min.
Sheathing or trim to opening sides 8" (204 mm) min.
Mantel above Opening see Figure 5
Opening to sidewall 24" (610 mm)
Hearth extension beyond front 20" (508 mm)
Hearth extension beyond sides 12" (305 mm)
Insulation from firebox 2" (51 mm)
Figure 5: Mantel Clearances to Combustible Material
22"
(559 mm)
20"
(508 mm)
16"
(407 mm)
18"
(458 mm)
10"
(254 mm)
1- 1/2"
(39 mm)
NON-COMBUSTIBLE
ONLY ZONE
SAFE ZONE FOR
PROJECTION OF
COMBUSTIBLE
MATERIAL
TOP OF FIREPLACE OPENING
MANTEL
LINTEL
FRONT
8" (204 mm)
10" (254 mm)
6" (153 mm)
3" (77 mm)

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125160-01_D 9
“W”
18"
(458 mm)
MIN*
MAINTAIN THE 2"(51 mm) CLEARANCE TO
COMBUSTIBLES ABOVE THE DOME.
DO NOT ATTACH COMBUSTIBLE
MATERIALS ON TOP OF THE DOME.
**IF METAL FRAMING IS USED
MAINTAIN A 1/2" (13 mm) MIN. AIR
SPACE FROM TOP OF LINTEL.
*IF WOOD FRAMING IS UTILIZED IT
MUST BE HELD 18" (458 mm) MIN. FROM
TOP OF LINTEL AND 2" (51 mm) MIN.
CLEARANCE MUST BE MAINTAINED
ALL AROUND FIREPLACE DOME.
2"(51 mm) MIN.
CLEARANCE TO
COMBUSTIBLES
AROUND SIDES,
REAR AND TOP OF
FIREPLACE DOME
1/2"
(13 mm)
MIN**
WARNING: Failure to position the parts in accordance with these diagrams or failure to use only parts
specifically approved with this appliance may result in property damage or personal injury.
Figure 7: Framing Dimensions for Non-Combustible Floor Systems
Condition Dim. H**
with 6" platform 10" (254 mm)
with 8" platform 12" (305 mm)
without platform 3" (77 mm)
Figure 6: Framing Dimensions for Combustible Floor Systems
PRE-INSTALLATION PREPARATION Continued
18"(458 mm)
MIN*
8"
(204 mm)
MIN*
"H" **
MAINTAIN THE 2"(51 mm) CLEARANCE
TO COMBUSTIBLES ABOVE THE DOME.
DO NOT ATTACH COMBUSTIBLE MATERIALS
ON TOP OF THE DOME.
NON-COMBUSTIBLE
FACING (NOT SUPPLIED).
* MINIMUM CLEARANCE TO COMBUSTIBLE MATERIALS.
** MEASURED FROM FLOOR TO TOP OF FIREBRICK LINER.
Model W
MM33 41" (1042 mm)
MM39 47" (1194 mm)
MM44 52" (1321 mm)
MM49 57" (1448 mm)
MM63 71" (1804 mm)

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8"
(204 mm)
MIN.
8"
(204 mm)
MIN.
2"(51 mm)
MIN.
2"(51 mm)
MIN.
1' - 0"
(0.3048 m)
MIN.
1' - 0"
(0.3048 m)
MIN.
1' - 8"
(0.508 m)
MIN.
NON-COMBUSTIBLE
FACING MATERIAL
NON-COMBUSTIBLE
HEARTH EXTENSION*
* Not provided as part of
fireplace or sold by IHP.
A
Model A
MM33 70 ½" (1791 mm)
MM39 82 ½" (2096 mm)
MM44 84 ¼" (2140 mm)
MM49 86" (2185 mm)
MM63 91" (2312 mm)
Figure 8: Corner Installation for Combustible Floor Systems
Figure 9: Top View for Combustible Floor Systems
PRE-INSTALLATION PREPARATION Continued
8"
(204 mm)
MIN.
1' - 0"
(0.3048 m)
MIN.
8"
(204 mm)
MIN.
1' - 0"
(0.3048 m)
MIN.
1' - 8"
(0.51 m)
MIN.
2"(51 mm) MIN.
FROM REAR AND SIDES
TO COMBUSTIBLES
HEARTH EXTENSION
NON-COMBUSTIBLE
FACING MATERIAL

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125160-01_D 11
PRE-INSTALLATION PREPARATION Continued
W1
H1
A
A
SECTION A-A
SECTION A-A
DET
"C"
LINTEL
DETAIL "C"
W1
H4
A
A
DET
"C"
H3
H3
NON-COMBUSTIBLE FLOOR
H2
H5
28" (712 mm) 2"
(51 mm)
28" (712 mm) 2" (51 mm)
2" (51 mm) MIN.
1" (26 mm) THICK CERAMIC
FIBER INSULATION BLANKET
2" (51 mm) MIN.
2" (51 mm) MIN.
2" (51 mm)
MIN.
LINTEL TOP
LINTEL TOP
2" (51 mm) MIN.
CLEARANCE TO COMBUSTIBLES
2" (51 mm)
MIN. AIRSPACE
CLEARANCE TO
COMBUSTIBLE
FRAMING
2" (51 mm) MIN.
CLEARANCE TO COMBUSTIBLES
MAINTAIN 2" (51 mm) CLEARANCE
TO WOOD FRAMING
MAINTAIN 2" (51 mm) CLEARANCE
TO WOOD FRAMING
2" (51 mm)
AIRSPACE
CLEARANCE TO
COMBUSTIBLES
ON REAR AND
SIDES OF UNIT
2" (51 mm)
AIRSPACE
CLEARANCE TO
COMBUSTIBLES
ON REAR AND
SIDES OF UNIT
1/2" (13 mm)
CEMENT BOARD
1/2" (13 mm)
CEMENT
BOARD
METAL
PLATFORM
FLOOR JOIST
BRACE
METAL
PLATFORM
Figure 11 - Combustible Floor
Figure 10 - Non Combustible Floor
Model W1 H1 H2 H3 H4 H5
MM33 41"(1042 mm) 32-½"(826 mm) 56-¼"(1429 mm) 7"(178 mm) 39-½"(1004 mm) 63-¼"(1607 mm)
MM39 47"(1194 mm) 40-½"(1029 mm) 64-¼"(1632 mm) 7"(178 mm) 47-½"(1207 mm) 71-¼"(1810 mm)
MM44 52"(1321 mm) 40-½"(1029 mm) 64-¼"(1632 mm) 7"(178 mm) 47-½"(1207 mm) 71-¼"(1810 mm)
MM49 57"(1448 mm) 40-½"(1029 mm) 64-¼"(1632 mm) 7"(178 mm) 47-½"(1207 mm) 71-¼"(1810 mm)
MM63 71"(1804 mm) 42-¾"(1086 mm) 75"(1905 mm) 9"(229 mm) 51-¾"(1315 mm) 84"(2134 mm)

Astria.us.com 125160-01_D12
NOTE: It is required that ember protector strips must be laid on the
fiber of the non-combustible raised platform (see Figure 12). These
are included with the Metal Base accessory.
WARNING: Hearth extension is to be installed
only as shown in Figure 12.
MANTEL AND MANTEL SHELF CLEARANCES
As with any radiant heat fireplace, the Grand Meridian fireplaces
must comply with building code safety clearances, per units that
have openings of 6 sq. ft. or greater. For Mantel clearances see Fig-
ure 5, page 8. Walls that Adjoin – Safety codes and all practical
outlooks insist that your fireplace cannot be installed closer than 2
ft. to any walls in the room the fireplace is housed in or to any walls
of adjoining rooms.
Caution in Regards to Combustibles – If any part of the fireplace
or objects in the room (curtains, rugs, paint, cushions, etc.) start
to show warping or discoloration due to heat from the fireplace,
it is time to take immediate action. Do not use the fireplace until
you have figured out how to address the problem. You are facing a
potential fire hazard. IHP cannot be responsible for the make-up of
material on the exterior of the fireplace you have chosen, nor can
IHP be held responsible for the materials in a room that may be
responding negatively to heat. However, in almost all cases, there is
a solution to the problem, either by making adjustments to airflow
or the modifications to the room itself.
HEARTH EXTENSION
Where the flooring material at the opening of the fireplace is
combustible, it is required that the hearth extension be covered with
a non-combustible material. All hearth extensions must be made of
code-rated, non-combustible materials such as tile, brick, marble,
concrete or stone. The extension should be set flush against the
front of the fireplace front and measure 20" minimum at the front
and 12" minimum beyond the sides of the fireplace opening as
shown in Figures 8 and 9 (page 10). These relative dimensions are
also covered by code.
If a raised hearth extension is being installed, it must be constructed
of non-combustible material and any material under the structure
must also be non-combustible.
If using a raised hearth or metal base plate, note that a combustible
wood header must be no closer than 2" to the top of the dome (see
Figure 6, page 9).
ATTENTION: You will note that there will be a gap between the
fireplace front and the extension of the non-combustible hearth
material. Be certain that you seal this with non-combustible
material.
These Grand Meridian Fireplaces have been designed with
clearance to combustible floors as indicated in Page 8. Cover any
part of the combustible floor system left exposed with 1” (one
inch) thick ceramic fiber insulation rated up to 2,100° F.
ATTENTION: It is critical to abide by the clearances listed in this
manual for all components specified as it allows for movement of
hot air from the fireplace into interior areas of the chimney chase.
Also, be certain that the chimney system be installed as stated be-
low. Prior to starting the installation, check with local, regional or
state codes for any restrictions or required permits regarding your
fireplace installation.
Figure 12 - Hearth Extension
Seal Gap
Fireplace Front
Fireplace Front Raised
Hearth
Fireplace Front
Elevated
Ember Protector
Seal Gap
Ember Protector
Ember Protector
Hearth
Extension
Hearth
Extension
Hearth
Extension
PRE-INSTALLATION PREPARATION Continued

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125160-01_D 13
CAUTION: Combustion air inlet ducts shall not
terminate in attic space.
The maximum height for the air vent can not exceed
3 feet below the flue gas outlet of the termination.
FACTORY BUILT CHIMNEY SYSTEMS
1) The Grand Meridian is designed to be installed with IHP Metal
Chimney System.
2) This Grand Meridian fireplace is intended as a supplemental
heat source only. It is not intended as a primary heat source.
3) It is the responsibility of the contractor/installer (not the
manufacturer) to ensure that adequate combustion air is
provided for proper function of this fireplace. Fireplaces take up
a large volume of replacement air from outside the house and if
the house is of airtight construction, smoke spillage may occur
if proper draft is not achieved.
4) There are many conditions beyond the manufacturer’s control
regarding improper fireplace operation. The manufacturer
cannot ensure “smoke free” operation, nor can the manufacturer
take on the responsibility for problems with surrounding
construction; chimneys that have not been built at the correct
heights; system drafts caused by faulty mechanical systems;
adverse weather conditions or any other environmental
situations over which the manufacturer has no control.
5) Inspect all fireplace & chimney components for evidence
of damage prior to starting installation. Consult your local
distributor for replacement parts if necessary.
VENTING INSTALLATION
Figure 13a - Outside Air Kit Venting
Secure to Collars with Metal Tape, Screws
or Straps (Min. of 1/4" x 20" in size)
Air Inlet
Location
Must Allow
For Bushes
or Snow
Vent Hood
Required for Wall
Installation
Vented Crawl Space
(Check Local Codes
Before Installing in a
Vented Crawl Space)
OPTIONAL OUTSIDE AIR KIT (MODEL MM4AK)
The Grand Meridian Fireplace needs enough replacement air to
function properly and some local building codes may require out-
side combustion air to be provided. If no replacement air is pro-
vided, improper flue drafting may occur, creating negative pressure
whereby smoke may enter the home, especially in homes that are
very well insulated and tightly sealed. Check local building codes for
specific requirements.
The installation of an outside air kit should be performed during
the rough framing of the fireplace due to the nature of it's location.
Outside combustion air is accessed through a vented crawl space or
through a sidewall (Figure 13a). If crawl space is used, check local
codes for proper termination.
Be sure that you carefully check the source of the outside air before
you choose the site for your air intake. You don’t want a place where
snow will collect, where bushes or trees will be growing or a loca-
tion that is too close to any other structure.
Install Combustion Air Kit into the firebox through the side wall
opening provided. A 4" dia. hole will also be required through the
firebrick side lining (see Figure 13). The tubing that goes out of the
firebox wall must feed into a flexible metal conduit as the source for
outside combustible air. Install a screened termination cap to keep
out small animals.
Figure 13 - Outside Air Kit Installation

Astria.us.com 125160-01_D14
6) Under no circumstances should you make any adjustments or
modifications to the chimney system during the installation
procedure. If you do, you are not only liable for negating the
warranty, but you could very well cause a serious malfunction
of the fireplace. You must follow these chimney instructions.
7) Caution is urged if it is decided to add insulation material to
any part of the Grand Meridian Fireplace or Chimney system,
be certain that the insulation material is kept at least 2” away
from any part of the system. When using insulation or vapor
barrier materials, cover with a layer of plywood, particle board
or gypsum board to maintain the specified 2” clearance.
8) Air spaces around firebox must remain open. DO NOT fill these
open spaces with insulation or packing material of any kind.
CHIMNEY PIPE
WARNING: Label part number 900599-01 must be
applied by the installer to all chimney pipe sections
but is not required on sections that will be visible after
the installation is complete. Label must wrap around
the circumference of the pipe. See accessories, page
37 for Kit F2659.
The IHP chimney system consists of 12", 18", 24", 36" and 48" snap-
lock, double-wall pipe segments, planned for maximum adaptability
to individual site requirements. Actual lengths gained after fitting
overlaps must be taken into consideration (lineal gain) and are given
in the lineal gain chart (see Figure 14). Lineal Gain is the actual
measurable length of a part after two or more parts are connected.
WARNING: The opening in the collar around
the chimney at the top of the fireplace must not be
obstructed. Never use blown insulation to fill the
chimney enclosure.
VENTING INSTALLATION Continued
Figure 14 - Lineal Gain
LINEAL GAIN
PART NO. DESCRIPTION GAIN
MM33 Fireplace 54 " (1372 mm)
MM39
MM44/49 Fireplace 63-½
" (1613 mm)
MM63 Fireplace 73 " (1855 mm)
12-12DM Pipe Section 10-5/8 " (270 mm)
18-12DM Pipe Section 16-5/8 " (423 mm)
24-12DM Pipe Section 23-5/8 " (600 mm)
36-12DM Pipe Section 34-5/8 " (880 mm)
48-12DM Pipe Section 46-5/8 " (1185 mm)
RLT-12D Round Termination 7-3/4 "
*
(197 mm)
STL-12D Square Chase-Top
with Slip Section
7 " to 15 " *
(178 mm) to (381 mm)*
* The lineal gain for the terminations is measured to the flue gas
outlet height.
Hemmed End
12 3/8"Stainless
Inner Pipe
15"Galvanized
Outer Pipe

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125160-01_D 15
Figure 16 - Ceiling Support Pipe 12S-12DM
ASSEMBLY AND INSTALLATION OF DOUBLE WALL CHIMNEY
SYSTEM
Each double wall chimney section consists of a galvanized outer
pipe, a stainless steel inner flue pipe and a wire spacer. The pipe
sections must be assembled independently as the chimney is in-
stalled. When connecting chimney directly to the fireplace, the inner
flue pipe section must be installed first with the lanced side up. The
outer pipe section can then be installed over the flue pipe section
with the hemmed end up. Press down on each pipe section until the
lances securely engage the hem on the fireplace starter. The wire
will assure the proper spacing between the inner and outer pipe
sections.
Continue to assemble chimney sections as outlined above, making
sure that both the inner and outer pipe sections are locked together.
When installing double wall snap-lock chimney together, it is im-
portant to assure the joint between the chimney sections is locked.
Check by pulling chimney upward after locking. The chimney will
not come apart if properly locked. It is not necessary to add screws
to keep the chimney together (exception, see Figure 15).
VENTING INSTALLATION Continued
OFFSET RISE CHIMNEY LENGTH
A B 12" 18" 24" 36" 48"
4 3/8" 16 3/8" ELBOW SET ONLY
9 3/4" 25 1/2" 1
12 3/4" 30 3/4" 1
15" 34 3/4" 1
18" 40" 1 1
21 1/4" 46 1/4" 1
23 3/4" 49 1/4" 1 1
27 3/4" 56 3/4" 1
30" 60 3/4" 1 1
33" 66" 1
36" 71" 1 1
38 1/4" 75" 2
41 1/4" 80 1/4" 1 1 1
45" 86 3/4" 2
46 3/4" 89 1/2" 1 1 1
51" 97" 1 1
53 1/4" 101" 2
56 1/4" 106 1/4" 2
59 1/4" 111 1/2" 1 1 1
61 3/4" 115 1/2" 1 2
64 3/4" 120 3/4" 1 2
68 1/4" 127" 2 1
70" 130" 1 1 2
74 1/4" 137 1/2" 1 2 1
76 3/4" 141 1/2" 1 2 1
79 3/4" 146 3/4" 4
OFFSET CHART (22-50 FT. SYSTEM HEIGHT)
Figure 15 - Elbow Offset
B
A
Screws
USING ELBOW OFFSETS (30E-12DM)
1. To achieve desired offset, you may install combinations of 12”,
18”, 24”, 36” and 48” length of double wall pipe (see offset
chart and Figure 15).
2. Chimney weight above offset rests on return elbow. Straps
must be securely nailed to rafters or joists (see Figure 16,
details A and B).
3. Maximum length of pipe between supports (re-turn elbow or
12S-12DM) is 6’ of angle run. Maxi-mum of two 6’ angle run
sections per chimney system (see Figure 17, page 16).
4. All pipe connections between the offset and re turn must be
secured with two screws on the outer pipe only (see Figure 15).
Do not penetrate the inner stainless.
2"
(51 mm)
Min.
Straps
Detail A
Return Elbow
Detail B
Angle Firestop
See Detail A
See Detail B
Straps
Straps
Straps

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VENTING INSTALLATION Continued
Figure 17 - Typical Offset Terminations
Return
Elbow
Elbow
Return
Elbow
Elbow
6' Max.
6' Max.
A
6' Max.
6' Max.
Return
Elbow
Elbow
Elbow
Return
Elbow
B
6' Max.
6' Max.
C
Elbow
Return
Elbow
Ceiling Support
Pipe 12S-12DM
Figure 18 - Firestop Spacer with Living Space Above Ceiling
FIRESTOP SPACERS (FS-10)
Firestop spacers are required at each point where the chimney pen-
etrates a floor space. Their purpose is to establish and maintain the
required clearance between the chimney and the combustible mate-
rials. When the pipe passes through a framed opening into a living
space above, the firestop must be placed onto the ceiling from below
as shown in Figure 18.
They also provide complete separation from one floor space to another
or attic space as required by most codes. When the double wall pipe
passes through a framed opening into an attic space, the firestop must
be placed into an attic floor as shown in Figure 19.
Figure 19 - Firestop Spacer with Attic Above Ceiling
Screws or Staples
(Min. of 8)
Firestop
Spacer
Existing
Ceiling Frame
PENETRATING ROOF
To maintain a 2” clearance to the pipe on a roof with a pitch, a rect-
angular opening must be cut.
1. Determine center point through which pipe will penetrate roof.
2. Determine center point of roof. Pitch is distance the roof drops
over a given span, usually 12”. A 6/12 pitch means that roof
drops 6” for each 12” measured horizontally down from roof
rafters.
3. Use roof opening chart (Figure 20) to determine correct
opening length and flashing required.
4. Remove shingles around opening measured. Cut out this
section.
5. Add next sections of pipe until end penetrates roof line. Check
to see that proper clearances are maintained. Extend chimney
by adding sections of double wall pipe until pipe is minimum
of 30” above highest point of roof cutout. Termination and
chimney must extend a minimum of 36” above highest point
where it passes through roof.
Existing
Ceiling Frame
Screws or Staples
(Min. of 8)
Firestop Spacer
Pitch Slope Opening "A" Max. Used Flashing
Model No.
Flat 0° 19.5" (496 mm) V6F-10DM
0-6/12 26.6° 22" (559 mm) V6F-10DM
6/12-12/12 45.0° 27" (686 mm) V12F-10DM
30"(762 mm)
Min.
Opening "A"
19-
1
/
2
"
(496 mm) 2" (51 mm)
Min
2" (51 mm)
Min
2" (51 mm)
Min
Figure 20 - Roof Opening Measurements

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125160-01_D 17
VENTING INSTALLATION Continued
Nail Only Outer
Perimeter of
Flashing
Storm Collar
Flashing
Cone
Underlap Shingles at
Bottom
Overlap Shingles
Top and Sides Only
Figure 21 - Flashing Installation
FLASHING INSTALLATION (V6F-10DM OR V12F-10DM)
Determine the flashing to be used with the roof opening chart. Slide
flashing over pipe until base is flat against roof. Replace as many
shingles as needed to cover exposed area and flashing base. Secure
in position by nailing through shingles (see Figure 21). DO NOT
NAIL THROUGH FLASHING CONE.
Installing Flashing on a Metal Roof
When installing the flashing on a metal roof, it is required that putty
tape be used between the flashing and the roof. The flashing must
be secured to the roof using #8 x 3/4" screws and then sealed with
roof coating to prevent leakage through the screw holes. A roof
coating must also be applied around the perimeter of the flashing to
provide a proper seal.
Storm Collar Installation (SC2-1)
Place storm collar over pipe and slide down until it is snug against
the open edge of the flashing (see Figure 22). Apply waterproof caulk
around the perimeter of the collar to provide a proper seal.
Figure 22 - Storm Collar
Chimney Pipe Waterproof Caulk
Storm Collar Flashing
TERMINATIONS/SPARK ARRESTOR
The fireplace system must be terminated with the listed round top
or chase terminations. In any case, refer to the installation instruc-
tions supplied with the termination.
CAUTION: Do not seal openings on the rooftop
flashing. Follow the installation instructions
provided with the termination being used.
Secure
Termination to
Outer Pipe with
3 Screws
RTL-12D
Level of Flue
Gas Outlet
Waterproof
Caulking
Storm Collar
Flashing
Figure 23 - Termination
Overlap Shingles
(Top and Sides of
Flashing Base)
CHASE INSTALLATIONS
Instructions for chase installations are included with the chase
style termination chosen. In a multiple chase installation, be sure to
provide adequate distance between terminations to prevent smoke
spillage from one termination to another. We suggest that termina-
tions be separated at least 24", center to center and stacked at a
vertical height difference of 18" (see Figure 24, page 18).
Stainless
Inner Flue
Pipe
Underlap
Shingles

Astria.us.com 125160-01_D18
VENTING INSTALLATION Continued
10 FOOT RULE
All flue gas outlet chimney terminations must extend a minimum of
3 feet in height above the highest point where it passes through the
roof and must be at least 2 feet above the highest point of the roof
that is within a horizontal distance of 10 feet (see Figure 25).
FINISHING FIREPLACE
Combustible materials, such as wallboard, gypsum board, sheet
rock, drywall, plywood, etc. may not make direct contact with sides
and top around the fireplace face. See clearance requirements in Fig-
ures 8 and 9 on page 10. It is important that combustible materials do
not overlap the face itself. Brick, glass, tile or other noncombustible
materials may overlap the front face provided they do not obstruct
essential openings. When overlapping with a noncombustible facing
material, use only noncombustible mortar or adhesive.
MASONRY (PRECAST) CHIMNEY
Masonry Chimney may be used instead of the IHP Chimney System.
Parts come in 14" Diameter and can be obtained by IHP. See Acces-
sories on page 36.
24" (610 mm)
Min.
24" (610 mm)
Min.
18"
(458 mm)
Min. Typ.
10'
(3.048 m)
2'(0.6096 m) Min.
2'(0.6096 m)
Min.
3'
(0.9144 m)
Min.
3'
(0.9144 m)
Min.
10'
(3.048 m)
Figure 24 - Multiple Chase Installation
Level of Flue
Gas Outlet
Figure 25 - 10 Foot Rule
OPTIONAL GAS LINE INSTALLATION
You may elect to add a vented decorative gas appliance (gas log) to
your Grand Meridian Fireplace. If so, follow the installation instruc-
tions from the Decorative Gas Appliance manufacturer. Familiarize
yourself with requirements for installation as outlined by the Na-
tional Fuel Gas Code, ANSI Z223.1/NFPA 54. This gas pipe provi-
sion should only be used on a decorative gas appliance.
You can route the gas piping practically anywhere in the firebox –
the floor, back wall or side walls. You will just need a masonry drill;
the instructions from the gas appliance manufacturer will be very
straightforward.
Fill in the holes you have drilled around the gas piping with the
regular mortar.
Follow the Gas Log manufacturer’s instructions.
OPTIONAL ELECTRICAL CONNECTION INSTALLATION
Like the gas line, electrical feed lines can be run through the floor,
back wall, or side walls. Follow local building and electrical code
requirements.

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125160-01_D 19
SUPPORTING FLOOR SYSTEM INSTALLATION
Floor Sheathing
not shown for
clarity
A35 Brackets
(16 required)
Figure 26 - Floor Joist Installation
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 floor system on which
the fireplace will rest.
For fireplace support foundations installed on concrete refer to
Appendix I and II (pages 44 & 45) for specific instructions.
REBAR LOCATIONS
Lay-out the position of the fireplace 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 fireplace to wood floor construction is required. Refer
to Figure 29 on page 21 for anchorage dimensions. Four anchors
are required to attach to the sub-flooring framing.
CRAWL SPACE OR UPPER FLOOR:
For installation of firebox over combustible crawl spaces or
upper floors, anchorage of the firebox is required. Illustrations of
examples of possible anchorage methods are shown in Figures 26
thru 28 depending upon the type of floor framing. Final method of
anchorage is to be determined by licensed design professional.
For conventional framing, where the floor joists are parallel with
the sides of the firebox, the addition of floor joists to align with the
anchor brackets allows the brackets to be directly connected to the
floor joists.
NOTE: Additional floor joists may be required to support the weight
of the firebox and chimney. Where the floor joists run parallel to the
front of the firebox, anchorage can be accomplished in like manner
as shown in Figure 26 using blocking between the floor joist.
For floors supported by I-Joists, the method of anchorage
is illustrated in Figures 27 and 28, page 20. Figure 31, page 21
illustrates the general arrangement of anchorage to floor 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 floor framing. Additional floor joists
or I-joists may be required as determined by the licensed design
professional.
The dead weights for the fireplace 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 fireplace installation.
As stated above, it is desirable to place additional framing for
alignment of anchor rods. Refer to Figure 29, page 21 for anchor
rod locations.
Attach the firebox side wall anchors to steel support frame by
inserting all-thread rods through holes on the bottom flange on the
steel support frame as shown in Figure 32 and 33, page 22. Secure
with two Ø 2” o.d. x Ø 9/16” i.d. x 0.10” Washers and two 1/2”-13
UNC Nuts.
Metal Base
Assembly
EXAMPLE ONLY
2X FLOOR JOIST
2X FLOOR JOIST

Astria.us.com 125160-01_D20
SUPPORTING FLOOR SYSTEMS INSTALLATION Continued
Figure 27 - Floor Joist Installation Figure 28 - Floor Joist Installation
Table I
Fireplace Model MM33 MM39 MM44 MM49 MM63
Fireplace Weight 835 lbs. 1,194 lbs. 1,250 lbs. 1,359 lbs. 1,704 lbs.
Mortar, Rebar & Ready Mix Concrete 200 lbs. 350 lbs. 357 lbs. 364 lbs. 370 lbs.
Firebrick Lining 290 lbs. 333 lbs. 345 lbs. 356 lbs. 435 lbs.
Damper/Anchor Plate 17 lbs. 17 lbs. 17 lbs. 17 lbs. 21 lbs.
Steel Platform 89 lbs. 94 lbs. 96 lbs. 100 lbs. 132 lbs.
Floor Area 37"x 28"(7.2 ft²) 42"x 28"(8.12 ft²) 48"x 28"(9.33 ft²) 53"x 28"(10.30 ft²) 67"x 28"(13 ft²)
Table II - Deflection Limits
Construction L S or W D + L1
Floor Members I/360 --- I/240
WEIGHT DETERMINATION
The following are dead load weight estimates for the Grand Meridian Fireplace.
Other Weight Considerations:
1. Fireplace finished facing (surround): This information needs to
be obtained from the contractor.
2. Weight of metal flue or Masonry Chimney System: See chimney
manufacturer’s weight specifications. Some chimney systems
can weigh up to 50 lbs per lineal foot.
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 deflection resulting from L + 0.5D is permitted to be
substituted for the deflection resulting from L + D.
Note that IHP cannot accept responsibility for structural floor
support details. All drawings are presented as mere illustrations
to indicate the presence of the underlying floor system. It is the
responsibility of the general contractor/installer to consult with a
local licensed design professional for guidance in building a proper
floor support system.
I-Joist
Example Only
Simpson
Strong Tie
A-35 or
Equivalent
I-JOISTS
Example Only
Anchor
Brackets
I-Joist Anchoring Top
View I-Joist
Anchoring
Bottom
View