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FMI MMST43 Instructions Manual

Masonry firebox
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THIS WOOD-BURNING FIREPLACE COMPLIES WITH UL127 STANDARD AS A FACTORY-BUILT APPLIANCE.
WARNING: THIS FIREPLACE IS APPROVED FOR USE AS A WOOD BURNING FIREPLACE.
IT HAS NOT BEEN TESTED OR APPROVED FOR UNVENTED GAS LOGS.
WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN
CAUSE INJURY, PROPERTY DAMAGE OR LOSS OF LIFE. REFER TO THIS MANUAL FOR ASSISTANCE OR
ADDITIONAL INFORMATION. CONSULT A QUALIFIED INSTALLER OR LOCAL DISTRIBUTOR.
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 with your other
Do not store gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Masonry Firebox
Model MMST43
SAVE THIS BOOK
important papers.
Installer: Leave these instructions with the consumer.
Consumer: Retain for future reference.
Instructions
Report No.
08-154
ICC Evaluation Services
Report No. 2401

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Summary of Contents for FMI MMST43

  • Page 1 Instructions Masonry Firebox Model MMST43 THIS WOOD-BURNING FIREPLACE COMPLIES WITH UL127 STANDARD AS A FACTORY-BUILT APPLIANCE. WARNING: THIS FIREPLACE IS APPROVED FOR USE AS A WOOD BURNING FIREPLACE. IT HAS NOT BEEN TESTED OR APPROVED FOR UNVENTED GAS LOGS. WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE INJURY, PROPERTY DAMAGE OR LOSS OF LIFE.
  • Page 2 This page has been left intentionally blank.

  • Page 3: Table Of Contents

    WARNING: FOR USE ONLY WITH WARNING : THIS FIREPLACE UNIT FRONT, SIDES, REAR..........2" (51 mm) FMI PRODUCTS, LLC LISTED HAS BEEN TESTED FOR USE ONLY " I.D. COMBUSTIBLE FLOOR ..........6" (152 mm) WITH APPROVED GLASS DOORS. FIREPLACE COMPONENTS: PIPE COMBUSTIBLE SHEATHING ABOVE OPENING TOP..

  • Page 4: Parts Lists

    MMST43 Fireplace Parts Diagrams Combustible Floor Systems Non-Combustible Floor Systems Figure 2 Figure 1...
  • Page 5 MMST43 Fireplace Parts List ITEM DESCRIPTION Optional Outside Ø4” MFPST-43-1 HEARTH (Left or Right) Combustion Air Kit MFPST-43-3 SIDE WALL Model No.: MM4-AK MFPST-43-3A SIDE WALL W/4” KNOCKOUT MFPST-43-6 LINTEL MFPST-43-7 DOME SIDE - LOWER MFPST-43-8 DOME SIDE - UPPER MFPST-43-9 DOME TOP FOR 16”...

  • Page 6: Fireplace Overall & Framing Dimensions

    MMST43 Fireplace Overall Dimensions 12 1/8" 18 7/8" Figure 3 Overall Dimensions 14" 28" 23 1/2" 37 3/8" 2 1/4" 62 7/8" 29 1/8" 38 5/8" 24 1/2" 3" 43 1/4" SECTION A-A 53" Fireplace Framing Dimensions Non-Combustible Floor Systems Figure 4 MAINTAIN THE 2”...

  • Page 7: Fireplace Framing Dimensions (Combustible Floor Systems)

    Fireplace Framing Dimensions (Combustible Floor Systems) Figure 5 - Combustible Floor 2” MIN** CLASS “A” CHIMNEY 8-1/2” 57” I.D. FRAMING SEE FIG. 27 AND 28 2” MIN* SEE FIG. 26 * 2 INCH CLEARANCE TO COMBUSTIBLES BOTH SIDES OF FIREPLACE ** If using a raised hearth or metal base plate, note that a 2”...

  • Page 8: Safety Information

    Read these instructions carefully before beginning the installation of this fireplace. Also, if installing an ANSI Z21.60 All current and future users of FMI Products, LLC Fireplaces Decorative Gas Log, read the gas log appliance manufacturer’s are charged with the responsibility for full knowledge of the...

  • Page 9: Product Overview

    Fireplace has been tested to ensure long-term durability. Product Overview FMI Products, LLC 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.

  • Page 10: Clearance To Combustibles

    When using insulation or vapor barrier materials, cover with a layer of plywood, particle board or gypsum board to MMST43 Grand Meridian Fireplaces have been designed maintain the specified 2” (two inch) clearance. with clearance to combustible floors at a minimum of 8-1/2”...

  • Page 11: Supporting Floor Systems

    Supporting Floor Systems 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 14. Secure with It is the ultimate responsibility of the installer to ensure that two Ø...

  • Page 12: Weight Determination

    Grand Meridian Weight Determination The following are dead load weight estimates for the Grand Meridian Fireplace. Table I Model: MMST43 Fireplace 835 lb.. Damper/Anchor Plate, Firebrick & 350 lb.. Mortar Steel Platform 70 lb.. 53” x 28” Floor Area (10.3 square feet) Other Weight Considerations: Fireplace finished facing (surround): This information needs to be obtained from the contractor.

  • Page 13: Component For Combustible Floors: 8" Metal Base

    28” 48” 23” The installation of an anchor plate/damper is required but not supplied. You may purchase it from FMI PRODUCTS, LLC. Also, an optional combustion air inlet MM4-AK can be Metal Base Assembly obtained from FMI PRODUCTS, LLC. Figure 17 Refractory Firebrick Liners also need to be installed.

  • Page 14: Fireplace Assembly Procedures

    Fireplace Assembly Procedures MMST43 Fireplace Assembly Mixing the mortar – The mortar comes premixed and 1) Place the Grand Meridian Fireplace hearth base on top should be dry. Be sure to use clean water and work it up of your non-combustible floor or metal base. For concrete into a mixture that is pasty but not lumpy.
  • Page 15 Figure 22 After the last side walls are in place it is time to install the Lintel rebar. Mix approx. 2 cu. ft. of Ready-Mix Concrete. Insert Lintel Assembly the 36” rebar vertically through the cells, into the holes in the hearth, adjacent to the rebar and/or all-thread sticking up from the hearth.

  • Page 16: Firestop Radiation Shield

    Firestop Radiation Shield Figure 25 A Firestop Radiation Shield is required in multistory installations Completed at each floor penetration above that where the Support Box is Firebox located. Figure 27 Firestop Spacer with Living Space Above Ceiling E x i s t i n g C e i l i n g Frame Firestop...

  • Page 17: Firebrick Liners

    Custom Firebrick lining is not included with the fireplace. There is, however, the option of modular pre-fabricated panels that If Optional Arches can be obtained from FMI PRODUCTS, LLC. See exploded are used, corner parts page for details. notching will be required on all If custom firebrick lining is desired, 1-1/8”...

  • Page 18: Fireplace Finishes And Combustible Trim Clearances

    FMI PRODUCTS, LLC 3) Follow the Gas Log manufacturer’s instructions. be held responsible for the materials in a room that may be responding negatively to heat.

  • Page 19: Chimney Systems

    Installing Damper and Chimney System Fireplace Chimney System MMST43 UL103-16” I.D. Class A The Damper System/Anchor Plate assembly is required for the installation of these chimney systems. Consult the Chimney System manufacturer’s instructions.

  • Page 20: Owner's Operation & Precautions

    Grand Meridian Owner’s Operation & Starting a Fire and Basic Operation Precautions Before starting a fire in your fireplace, open the damper to its’ fully open position. Crumple some paper and place it on Installers of the Grand Meridian are urged to leave the owner’s the log grate.

  • Page 21: Annual Fireplace Maintenance

    ANNUAL FIREPLACE MAINTENANCE SURFACE CRACKS The Grand Meridian FIREPLACES are manufactured Your fireplace and chimney require seasonal and using high quality materials. During the drying process, surface monthly tune-ups”. Like any piece of well-built equipment, cracking may occur. These small cracks (under 1/16” will not the Grand Meridian Fireplace and chimney needs routine effect the fireplace safety or performance).

  • Page 24: Warranty Information

    FMI PRODUCTS, LLC does not warrant accessory chimney, outside air ducts, gas control or burner system, ceramic logs, and devices not manufactured by FMI PRODUCTS, LLC. Valves and electronic parts are only covered for one year parts and labor per the log set manufacturer’s warranty.

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