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Models: LMFP- (48 / 60 / 72 / 84 / 96 / 108 / 120)
*Class A chimney can be used as an optional chimney system. Consult chimney system manufacturer's instructions.
WARNING:
If the information in these instructions is
not followed exactly, a fire or explosion
may result causing property damage,
personal injury or death.
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch any electrical switch; do
not use any phone in your building.
Immediately call your gas supplier from
a neighbor's phone and follow the gas
supplier's instructions.
If you cannot reach your gas supplier,
call the fire department.
Installation and service must be
performed by a qualified installer, service
agency, or the gas supplier.
Do not store gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
REV 010721
Inc.
B-Vent* Gas Appliance with Masonry Firebox
IMPORTANT:
CAREFULLY BEFORE STARTING
INSTALLATION OF THIS APPLIANCE.
The logs and burner must be permanently installed and
are only for use in this appliance. This appliance must be
connected to a working flue meeting the requirements of
the ANSI Z21.50 standard.
Solid-fuels shall not be burned in this appliance.
This appliance must be vented vertically through the
roof. This appliance is not for installation in manufactured
or mobile homes. The installation, including provisions
for combustion, ventilation air, and required minimum
permanent vent opening, must conform with the National
Fuel Gas Code (ANSI Z223.1/NFPA 54) and applicable
local building codes. This gas appliance is designed to
burn with yellow flames; thus adequate ventilation is
absolutely necessary.
This gas appliance must not be connected to a chimney
fuel servicing a solid fuel burning appliance.
: Leave this manual with the appliance.
INSTALLER
CONSUMER:
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 certified kit is used.
Instructions
Shown with optional Draft
Hood, Glass Doors, Burner
System and Firebrick
(ALL SOLD SEPARATELY)
READ THESE INSTRUCTIONS
WARNING:
Retain this manual for future reference.
PFS
C
®
US

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Summary of Contents for mFi Mason-Lite LMFP-48

  • Page 1 Instructions Inc. Shown with optional Draft Hood, Glass Doors, Burner System and Firebrick (ALL SOLD SEPARATELY) B-Vent* Gas Appliance with Masonry Firebox Models: LMFP- (48 / 60 / 72 / 84 / 96 / 108 / 120) *Class A chimney can be used as an optional chimney system. Consult chimney system manufacturer’s instructions. WARNING: IMPORTANT: ...
  • Page 2: Table Of Contents

    CONTENTS CONTENTS LMFP Appliance Parts ............................Pg. 4 ~ 7 Introduction / Product Overview ........................... Pg. 8 LMFP Appliance Overall Dimensions ........................Pg. 8 Examples of multiple configurations ........................Pg. 9 Required Gas Pressure / Testing the Gas Supply System .................. Pg. 10 Appliance Framing Dimensions ...........................
  • Page 3 Below is a sample picture of the rating plate that is located inside the lower dome side of your appliance. Model Number, Date of Manufacture and Serial Number should be stamped on the plate where indicated. 7.00” .12” 6.75” DO NOT REMOVE THIS LABEL Tested &...
  • Page 4: Lmfp Appliance Parts

    LMFP-48/60/72/84 Appliance Parts Diagram LMFP-48/60/72/84 Appliance Parts Diagram Figure 2...
  • Page 5 LMFP-48/60/72/84 Appliance Parts List LMFP-48/60/72/84 Appliance Parts List ITEM DESCRIPTION QTY. HEARTH BTM HEARTH MIDDLE SIDE WALL W/ AIR KIT HOLE SIDE WALL REAR WALL SML SEC REAR WALL (NOT SUPPLIED - SOURCE LOCALLY) 5 x 3 x 61 x .25 ANGLE IRON LOWER DOME FRONT LINTEL SMOKE SHELF...
  • Page 6 LMFP-96/108/120 Appliance Parts Diagrams LMFP-96/108/120 Appliance Parts Diagrams WARNING Figure 1 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.
  • Page 7 LMFP- LMFP-96/108/ 96/108/120 Appliance Parts List 120 Appliance Parts List ITEM NO. DESCRIPTION HEARTH BTM HEARTH MIDDLE SIDE WALL W/ HOLE FOR AIR KIT SIDE WALL REAR WALL REAR WALL MIDDLE REAR WALL SHORT LOWER DOME SIDE LOWER DOME REAR LOWER DOME REAR CENTER LOWER DOME FRONT LOWER DOME FRONT CENTER...
  • Page 8: Introduction / Product Overview

    (48 inches) away from the opening of the appliance! Introduction Thank you for choosing Masonry Fireplace Industries Inc, Attention: You may need a residential building permit to install proud manufacturers of Mason-Lite Appliances. Rest assured a Mason-Lite Appliance. Consult local jurisdictions before you that every component of your Appliance has been tested to get started! ensure long-term durability.
  • Page 9: Examples Of Multiple Configurations

    Examples of multiple configurations Please consult with local Structural Engineer for suspension and support calculations Peninsula option Left Side option Right Side option 4 Sided option See-Thru option...
  • Page 10: Required Gas Pressure / Testing The Gas Supply System

    GUIDELINES FOR USE: Required Gas Pressure All current and future users of Mason-Lite Appliances The minimum inlet gas supply pressure for the purpose of input are charged with the responsibility for full knowledge of the adjustment is 7” of water column (w.c.) for natural gas. information contained within this manual which includes: •...
  • Page 11: Appliance Framing Dimensions

    *NON-COMBUSTIBLE MAINTAIN 2" CLEARANCE FACING MATERIAL 8" TO WOOD FRAMING 2" MIN CLEARANCE Appliance Framing Dimensions TO COMBUSTIBLES 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. 2"...
  • Page 12 Appliance Framing Dimensions Figure 7 Model Cross-sectional Top View LMFP48 87-1/2” (Corner Install): LMFP60 96” Combustible Floor Systems LMFP72 104-1/2” LMFP84 113” LMFP96 121-1/2” LMFP108 129-3/4” LMFP120 138-1/4” “A” 113" 2" 2" 2" FIREBRICK LINING (NOT SUPPLIED) PLAN *NON-COMBUSTIBLE FACING MATERIAL 8"...
  • Page 13: Appliance Overall Dimensions: Lmfp-120

    Appliance Overall Dimensions: LMFP-120 41" LMFP-120 Appliance Overall Dimensions 12" Figure 8a 11 3/4" 28" 134" **54" SHOWN WITH OPTIONAL GLASS DOORS (SOLD SEPARATELY) 120" FIREBRICK LINING REQUIRED GAS LOG BURNER Ø12" SECTION A-A (SOLD SEPARATELY) SHOWN (NOT SUPPLIED) DRAFT HOOD (SOLD SEPARATELY) 4 1/2"...
  • Page 14: Clearance To Combistibles

    Clearance to Combustibles Clearance to Combustibles When installing the appliance on combustible floor systems The distance to be maintained from the surfaces of the appliance using 6” high CMU blocks, a cement board is required above to combustibles must be observed. Below is a list of the most and below the CMU block as shown in Figure 8b.
  • Page 15: Chimney System Heights

    Figure 9 Supporting Floor Systems Metal Base Assembly It is the ultimate responsibility of the installer to ensure that A35 Brackets proper concrete slab supports are used. (16 required) WARNING to the licensed design professional and/or building contractor: It is your responsibility to be certain that the Mason- Lite can be properly supported by the combustible floor system on which the appliance will rest.
  • Page 16 Mason-Lite Weight Determination The following are dead load weight estimates for the Mason-Lite Appliance. Table I Appliance Model: LMFP48 LMFP60 LMFP72 LMFP84 LMFP96 LMFP108 LMFP120 Appliance Weight 1,660 lbs. 1,950 lbs. 2,250 lbs. 2,475 lbs. 2,660 lbs. 2,820 lbs. 3,200 lbs. (dry) Mortar, Rebar &...
  • Page 17: What You Will Need

    ALL UNITS: What You Will Need Three (3) - 90 lb. bags of ready mix concrete with 1/4” or smaller aggregate. 6” Structural Metal Base to allow 6 inch airspace below the unit You will find that the Mason-Lite B-vented Gas Appliance is (required for combustible floor systems) designed to be completely assembled on-site, consisting of interlocking precast parts.
  • Page 18: Assembly Instructions

    Assembly Instructions Hearth section shown prepared Figure 16 for Right Side position 1. Place the Mason-Lite appliance hearth base parts on top of your non-combustible floor, metal base or CMU blocks. For concrete slabs, supporting floor must be ASTM 90 rated. 2.
  • Page 19 Stagger positions of rear wall Figure 19 Figure 21 Apply mortar Begin with the smallest rear wall to the right side as shown below. Rear Wall (short) Rear Wall (long) Apply mortar Combustion Air Access Right or Left (Right shown). 8.
  • Page 20: Installing Draft Hood And Chimney System

    Important: Adjustments can only be made while the mortar Top surfaces to be Figure 26 is still wet when correcting for squareness and leveling. flush and level 10. Assemble Dome Sides and Lower Rear Domes as shown in Figure 24. The beveled face lines up with the inward angles of the lintel sides.
  • Page 21: Mason-Lite Firebrick Liners

    Mason-Lite Firebrick Liner Figure 30 FIREPLACE The firebrick refractory lining is not supplied as part of your 2" DOME TOP Mantel clearances Mason-Lite Appliance. Firebrick Refractory Liner Bricks need to NON-COMBUSTIBLE be 1-1/2” thick minimum for the rear and side walls, 2” minimum ONLY ZONE 2"...
  • Page 22: Mason-Lite Chimney Systems

    air before you choose the site for your air intake. You don’t warranty, but you could very well cause a serious malfunction of the appliance. You must follow these chimney instructions. want a place where snow will collect, where bushes or trees will be growing or a location that is too close to any other structure.
  • Page 23 General Chimney Requirements for Height and Clearance 1. First, ascertain the height of the chimney. This includes the When installed, the maximum overall height of the chimney distance from the very top of the smoke dome to where the system from bottom of appliance to the top/termination chimney top of the flue ends.
  • Page 24: Venting Installation

    The Special Case of Offset Installation Venting Installation Venting Installation Overview A “B-type” venting system must be connected to the Special, detailed installation instructions must be given for the appliance for venting to outside of building. The following proper handling of offsetting for the chimney system. Maximum section is provided as a guide to a standard B-type vent offset is 45 degrees off of vertical and there should be no installation.
  • Page 25: Chimney Termination Units

    system or a common venting system, consult with your local Chimney Termination Units Chimney Termination Units architect, planner, or building official. You will be installing at or possibly near the top of the chimney chase flashing. A top termination unit is the essential Specifying Chimney Heights Specifying Chimney Heights piece of equipment in keeping sparks out of the atmosphere.
  • Page 26: Installing The Valve/Control Box Assembly

    Important Pre-installation Information Important Pre-installation Information Figure 34 Before you begin, review the information and safeguards below regarding the installation and operation of the gas Spillover Appliance. switch This appliance may only be connected to the gas supply listed on the label. Never use propane gas in a gas appliance Spill switch designed for natural gas or natural gas in a gas appliance channel...
  • Page 27: Owner's Operation & Precautions

    Owner’s Operation & Precautions Placing the Decorative Lava Rock If desired, open the bag of lava rock and pour its contents around the base of the grating in an attractive pattern. Do not place the Installers of the Mason-Lite are urged to call the attention of Lava Rock on the logs or grate.
  • Page 28: Log Placement: Log Set

    Log Placement Log Placement Placing the Logs 1. Place the back bottom log on the grate behind the top burner and as far forward (against the top burner) as possible without touching the pilot. The flat side should be down and the heat chambers facing the back of the appliance (Figure 40). 2.
  • Page 29: Log Set

    MENT CONTAINS CONFIDENTIAL INFORMATION AND MAY NOT BE REPRODUCED OR DISCLOSED TO OTHERS WITHOUT WRITTEN AUTHORIZATION FROM GRAND CANYON GAS LOGS, LLC. REVISIONS ZONE REV. DESCRIPTION DATE APPROVED RELEASE FOR PRODUCTION 4/11/18 LOG SET 60 BTU Rating NG = 150K LP = 145K Pilot Bracket Figure 44...
  • Page 30: Log Set 120

    LOG SET 120 Figure 49...
  • Page 31: Lighting And Operating Instructions

    Lighting and Operating Instructions Lighting and Operating Instructions FOR YOUR SAFETY, READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. Do not use this gas appliance if any part has been underwater. Immediately call for a qualified professional service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.
  • Page 32: Electronic Ignition Enclosure Installation

    ELECTRONIC IGNITION ENCLOSURE BOX INSTALLATION The EIS box comes with a 72” pilot assembly lead, therefor the box must be mounted within 5’ of the fireplace. A�ach the metal enclosure to the studs using standard building materials. The metal 5’ enclosure must be mounted in a loca�on that can be accessed in...
  • Page 33 • • SYSTEM CHECKOUT PROCEDURES The ini�al installa�on por�on is now completed. The checkout procedures listed below must be followed. While there are redundant safety features built into the system, it is impera�ve that you follow the steps outlined below to ensure proper and safe opera�on.
  • Page 34: Maintenance And Service

    Maintenance and Service Maintenance and Service Service Maintenance It is recommended that a qualified professional service technician Once installed and operating properly, the Mason-Lite gas be called to service the gas appliance and its venting system appliance requires very little maintenance. at least annually or should service be required.
  • Page 37: Limited Warranty

    Lifetime Limited Warranty Mason-Lite Appliances Masonry Fireplace Industries, Inc. warrants all Mason-Lite Appliances to be free from defects in materials that adversely affect appliance performance for the lifetime of the product from the date of purchase, subject to the terms and conditions of this limited warranty. Masonry Fireplace Industries does not warrant accessory chimney, outside air ducts and devices not manufactured by Masonry Fireplace Industries.

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