Mason-Lite MGFP39, MGFP44, MGFP49 Instructions Manual

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Page 1

Instructions

Gas Fireplace with Masonry Firebox

Models MGFP39/44/49

Equipped with Safety Pilot System / Remote Control Valve

WARNING:

If the information in these instructions is not followed exactly, a ﬁ re or explosion may result causing property damage, personal injury or death.

Do not store or use gasoline or other ﬂ 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 and follow the gas supplier’s instructions. If you cannot reach your gas supplier,

•

call the ﬁ re department.

Installation and service must be performed by a qualiﬁ ed installer, service agency, or the gas supplier.

IMPORTANT: READ THESE INSTRUCTIONS

CAREFULLY BEFORE STARTING

INSTALLATION OF THIS FIREPLACE.

The logs and burner must be permanently installed in and are only for use in this ﬁ replace. This ﬁ replace must be connected to a working ﬂ ue meeting the requirements of the ANSI Z21.50 standard.

Solid-fuels shall not be burned in this ﬁ replace.

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 ﬁ replace is designed to

burn with yellow ﬂ ames; thus adequate ventilation is absolutely necessary.

WARNING:

This gas appliance must not be connected to a chimney fuel servicing a solid fuel burning appliance.

Do not store gasoline or other ﬂ ammable vapors and liquids in the vicinity of this or any other appliance.

Installer: Leave these instructions with the consumer. Consumer: Retain for future reference.

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 certiﬁ ed kit is used.

REV 10/23/2012

Report No. 08-154

ICC Evaluation Services Report No. 2401

Page 2

THIS PAGE INTENTIONALLY LEFT BLANK

Page 3

CONTENTS

Contents ..........................................................................................................................................Pg. 1

Fireplace Parts List .......................................................................................................................... Pg. 2, 3

Burner and Logs Parts List ..............................................................................................................Pg. 4

Product Overview ............................................................................................................................Pg. 5, 6

Clearance To Combustibles .............................................................................................................Pg. 7

Mason-Lite Fireplace & Chimney Systems ......................................................................................Pg. 7

Chimney System Heights ................................................................................................................Pg. 7

Supporting Floor Systems ...............................................................................................................Pg. 8, 9

What You Will Need .........................................................................................................................Pg. 10

Fireplace Assembly Procedures ......................................................................................................Pg. 11, 12

Mason-Lite Firebrick Liner ...............................................................................................................Pg. 13

Installing Outside Air ........................................................................................................................Pg. 14

Mason-Lite Chimney Systems ......................................................................................................... Pg. 14

Determining Finished Height for Fireplace ......................................................................................Pg. 14, 15

Installing Vent Plate and Chimney Systems .................................................................................... Pg. 15

Venting Installation ........................................................................................................................... Pg. 16

Specifying Chimney Heights ............................................................................................................Pg. 17

Chimney Termination Units ..............................................................................................................Pg. 17

Important Pre-installation Information ..............................................................................................Pg. 17

Installing the Valve/Control Box Assembly ....................................................................................... Pg. 18

Install Spill Switch and Bafﬂ e Assembly .......................................................................................... Pg. 18

Owner’s Operation & Precautions ...................................................................................................Pg. 18, 19

Attaching the Burner and Grate ....................................................................................................... Pg. 19

Checking and Adjusting the Pilot ..................................................................................................... Pg. 19

Placing the Decorative Lava Rock ...................................................................................................Pg. 19

Adjusting Air Mixers .........................................................................................................................Pg. 19

Log Placement .................................................................................................................................Pg. 20

Lighting and Operating Instructions ................................................................................................. Pg. 21

Maintenance and Service ................................................................................................................Pg. 22

Troubleshooting ...............................................................................................................................Pg. 22

Appendix I ........................................................................................................................................Pg. 23

Appendix II .......................................................................................................................................Pg. 24

Warranty ..........................................................................................................................................Pg. 25

Below is a sample picture of the rating plate that is located inside the lower dome side of your ﬁ replace. Model Number, Date Of Manufacture and Serial Number should be stamped on the plate where indicated.

DO NOT REMOVE THIS LABEL

Masonry Fireplace

MFI

315 WEST 3RD ST. SANTA ANA, CA 92701

MODEL

No.:

WARNING:

THIS FIREPLACE HAS BEEN TESTED FOR USE ONLY WITH APPROVED GLASS DOORS. TO REDUCE THE RISK OF FIRE OR INJURY, CONSULT OWNER’S MANUAL.

THIS FIREPLACE IS DESIGNED FOR USE ONLY WITH THE ANSI Z21.50 DECORATIVE GAS LOGS AND BURNER TESTED AND APPROVED FOR THIS FIREPLACE. Consult instructions included with this firebox for further information.

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.

WARNING: This gas appliance must not be connected to a chimney fuel servicing a solid fuel burning appliance.

rev 18 NOV 2009

Industries, LLC

MGFPST-43

THIS APPLIANCE NEEDS FRESH AIR FOR SAFE OPERATION AND MUST BE INSTALLED SO THERE ARE PROVISIONS FOR ADEQUATE COMBUSTION AND VENTILATION AIR.

See MFI’s installation and operating instructions for this model. Contact local building officials about restrictions and installation specifications in your area.

DATE OF MFG.

SERIAL No.

MGFP-39 MGFP-44 MGFP-49

WARNING:

Use only approved, listed chimneys

MGFP-39/44/49:

10” B-Type Vent and DM-12-10” system

EXAMPLE ONLY

MGFPST-43:

12” B-Type Vent and DM-12-12” system, UL 103 chimney or a 12” class A chimney if preferred.

Chimney Heights:

Max.: 40 ft. Min.: 14 ft. (17 ft. with 1 or 2 offset sections maximum)

IMPORTANT: Refer to pipe manufacturer’s instructions.

WARNING:

THIS FIREPLACE IS NOT INTENDED FOR BURNING SOLID FUELS.

Tested & Listed By

GAS

TYPE:

FIREPLACE CLEARANCES TO COMBUSTIBLES:

UNIT FRONT, SIDES, REAR...............................0” (0 mm)

COMBUSTIBLE FLOOR......................................0” (0 mm)

COMB. SHEATHING ABOVE OPENING TOP.....8” (200 mm)

SHEATHING OR TRIM TO OPENING SIDES....12“ (300 mm)

OPENING TO SIDE WALL..................................20” (500 mm)

HEARTH EXTENSION BEYOND SIDES............12“ (300 mm)

INSULATION FROM FIREBOX............................0” (0 mm)

FOR MANTEL CLEARANCES

CONSULT OWNER’S MANUAL

NG LP

Report No. 08-154

ICC Evaluation Services Report No. 2401

Page 4

Fireplace Parts List

Figure 1

WARNING

Failure to position the parts in

accordance with these diagrams or

failure to use only parts speciﬁ cally

approved with this appliance may result

in property damage or personal injury.

Fireplace Parts List

See Page 8 and 9 for framing anchoring components.

Page 5

MGFP39/44/49 Fireplace Parts List

Optional Outside Ø4”

Combustion Air Kit

Model No.: MFP4-AK

(Ø4” Ducting not included)

MFP(39,44,49)SHBL- Herringbone MFP(39,44,49)FRBL- Running Bond

Refractory Firebrick Liners

(Herringbone Pattern shown, also available in Running Bond - see Pg.27)

ITEM P/N DESCRIPTION

MFP39-1

MFP44-1 MFP49-1

MFP39-2 MFP44-2 MFP49-2

MFP39-3 MFP44-3 MFP49-3

MFP39-3A MFP44-3A MFP49-3A

MFP39-4 MFP44-4 MFP49-4

MFP39-5 MFP44-5 MFP49-5

MFP39-6 MFP44-6 MFP49-6

MFP39-7 MFP44-7 MFP49-7

MFP39-8 MFP44-8 MFP49-8

MFP39-9 MFP44-9 MFP49-9

MFP39-10 MFP44-10 MFP49-10

MFP186-1

MFP-DD*

MFP-211

MFP-212

MFP-213

HEARTH (Left or Right)

REAR WALL

SIDE WALL

SIDE WALL with 4” opening for Air Kit

SMOKE SHELF (Downdraft Diverter)

DOME REAR - LOWER

LINTEL

DOME SIDE - LOWER

DOME SIDE - UPPER

DOME TOP Ø10”

DOME FRONT/REAR

RATING PLATE

10” DRAFT HOOD

SMOKE DIVERTER

SMOKE DIVERTER EDGE PIECE

SPILL SENSOR SWITCH

QTY

Only the following doors have been tested and approved for use with this fireplace:

Crown-Breckinridge

McKenzie-Pendelton

* ITEMS NOTED ARE SOLD SEPARATELY.

ITEMS INDICATED AS “NOT SUPPLIED” CAN BE OBTAINED FROM YOUR LOCAL HARDWARE STORE.

Page 6

Burner & Logs Parts List

Before beginning installation, be sure the burner system is complete by comparing its contents with this Parts List. Parts may differ depending upon the size of the set purchased. Be sure you know the model number and size of your set when ordering replacement or optional parts and accessories.

LML-24 shown.

Diagrams shown are not to scale.

ITEM P/N DESCRIPTION

GMLB-39/44-01(P)

GMLB-49-01(P)

RR-1A

CK-5-18HC Source connector kit

CK-5-24HC Burner connector kit

CE-01 Valve/Control box w/ batt.

OCC-10 Lava Rock, 10 lb. bag (4)

LML-15T Top log 15”

LML-17T Top log 17”

LML-18T Top log 18”

LML-20T Top log 20”

LML-24BR

LML-30BR

LML-24BF

LML-30BF

MFP-214 Burner Grate Brackets (2)

Pilot, Burner assembly

Remote trans./recvr. w/ batt.

Rear bottom log 24” Rear bottom log 30”

Front bottom log 24” Front bottom log 30”

QTY

Receiver pre-assembled

into control box.

Contact MFI for replacement parts and

accessories as listed in these parts lists.

Page 7

Product Overview

Introduction

We extend a warm welcome from all of us at Masonry Fireplace Industries, LLC. (MFI), proud manufacturers of Mason-Lite Fireplaces. Thank you for Choosing MFI. You may have thought long and hard before you chose the ﬁ replace which would grace your home. Rest assured that every component of the Fireplace has been tested to ensure long-term durability.

Product Overview

Mason-Lite Fireplaces are designed as factory-built blocks to be assembled on-site. These ﬁ replaces may be installed on either combustible or non-combustible ﬂ oors. In order to func- tion, the system requires a 10” B-vent chimney.

The main components of the Mason-Lite Fireplace are:

Mason-Lite Firebox and Smoke Dome

●

Gas burner, logs and control system

●

B-vent

●

Careful step-by-step instructions for each phase of the installation procedure will be given for the Mason-Lite ﬁ replace. 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 ﬂ oor on which it rests

●

Chimney system measurements

●

Set up and use of the gas burner system.

●

Choice of materials and craftsmanship in ﬁ replace and hearth

●

ﬁ nishing.

Figure 4 - Typical Installations

WARNING! Under no circumstances should you allow children

to remain unattended while a ﬁ re is burning in the ﬁ replace! Be sure to keep all objects – furniture, drapes, rugs, etc. at least 48” (48 inches) away from the opening of the ﬁ replace!

Attention: You may need a residential building permit to install

a Mason-Lite Fireplace. Consult local jurisdictions before you get started!

The MASON-LITE gas ﬁ replace is not designed to serve as a primary heat source, rather, the ﬁ replace was expressly created as a supplemental source of heat. This unit is designed for use with the provided gas burner and approved logs only.

Testing and listing for the MASON-LITE gas ﬁ replace has been undertaken by PFS Test Laboratories, Inc. to ANSI Z21.50.

Under no circumstances should the MASON-LITE gas ﬁ replace be considered for other than in-residence buildings of conventional construction.

These components make up the MASON-LITE gas ﬁ replace and in the following pages, you will learn how they work together to create an exceptional unit that will give years of service and pleasure!

Figure 5

11"

28"

A/2

4 3/8"

Internal

Wall

Installation

Corner Installation

Flush

Full

Installation

Projection Installation

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 elements will vary from case to case. Pay attention to speciﬁ ed minimum clearances to combustibles.

63-1/2”

32 7/8"

23"

C B

40 5/8"

21"

4 1/4"

ø4” OUTSIDE AIR

ACCESS - CAN BE INSTALLED ON THE LEFT SIDE ALSO

Overall Dimensions MASON-LITE Fireplaces

Model A B C D MGFP39 43” 39” 30-1/4” 27-3/4” MGFP44 48” 44” 35-1/4” 32-3/4” MGFP49 53” 49” 40-1/4” 37-3/4”

7 3/8"

Page 8

Required Gas Pressure

The minimum inlet gas supply pressure for the purpose of

input adjustment is 5” of water column (w.c.) for natural gas.

The maximum inlet gas supply pressure is 10.5” w.c. for natural gas. The minimum inlet gas supply pressure for the purpose of input adjustment is 11” of water column (w.c.) for propane gas. The maximum inlet gas supply pressure is 13” w.c. for propane gas.

Testing the Gas Supply System

The gas ﬁ replace and its required individual shut-off valve

must be disconnected from the gas supply piping system while performing any tests of the piping system at pressures in excess of 1/2 psig. The gas ﬁ replace must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig. This is accomplished by closing the gas supply line valve required by NFPA 54. A ﬁ replace screen must be replaced after service and be in place when the appliance is in operation and, unless other provisions are provided, the screen shall have an opening for introduction of combustion air. When glass ﬁ replace doors are used, operate the gas ﬁ replace with the doors open. Use only doors rated for this appliance.

Important

To comply with building code acceptances, and for safe operation and proper performance of this ﬁ replace, use ONLY MASON-LITE parts and accessories. Use of other controls, parts, and accessories which are not designed for use with MASON-LITE gas ﬁ replaces is prohibited and will void all warranties, certiﬁ cations, listings, and building code approvals, and may cause property damage, personal injury, or loss of life. The burner included with this gas ﬁ replace is non-convertible and only meant to be used with the gas listed on the rating plate.

GUIDELINES FOR USE:

All current and future users of Mason-Lite 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 to it that the work is 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 from all ﬁ rebox surfaces per speciﬁ cations in this manual.

DO NOT USE A FIREPLACE INSERT OR OTHER PRODUCTS NOT SPECIFIED FOR USE WITH THIS FIREPLACE.

The Mason-Lite is Designed for Use Only with:

- The supplied burner and log system

- Plumbed LPG or Natural Gas.

DO NOT USE OR STORE GASOLINE OR OTHER FLAMMABLE LIQUIDS OR GASES IN OR NEAR THE FIREPLACE!

ATTENTION: A ﬁ re or an explosion could occur causing

property damage, injury or loss of life if you do not follow the information in this manual!

Page 9

Clearance to Combustibles

Mason-Lite Fireplace & Chimney Systems

The distance to be maintained from the surfaces of the ﬁ replace to combustibles must be observed. Below is a list of the most common combustible materials to name a few:

Drywall Wood ﬂ ooring Plywood Sub-ﬂ ooring Wood Framing Particle board Mill board Plywood paneling

Maintain the following minimum clearances:

Unit front, sides, rear 0” (0 mm)

Combustible ﬂ oor 0” (0 mm)

Sheathing or trim to opening sides

Combustible sheathing above opening top

Mantel above opening

8”

(203 mm)

8”

(203 mm)

12” (305 mm)

Mason-Lite Fireplace & Chimney Systems

Before Getting Started… Even if you consider yourself an expert in the ﬁ eld of

ﬁ replace installation, we at Masonry Fireplace Industries caution you to take the time to totally familiarize yourself with the instructions to follow.

We can assure you that there will be information that will make the installation go smoother and, above all, safer, for everyone concerned. At the least, reading these procedures will save you time and, at the most, it will prevent any malfunction that could result in property damage or serious injury.

Do not start the installation until you have checked out all the local, regional, state and national rulings, laws and codes as they apply to ﬁ replaces and ﬁ replace installations. Every community is different so do not assume that because you know the requirements for one locality, it will be the same in the next. Avoid bureaucratic hassles and do your homework WELL BEFORE you start your project!

Opening to side wall

Insulation from ﬁ rebox

Due to high temperatures, never install this ﬁ replace in a recreational vehicle, in high trafﬁ c areas, drafty areas, or where curtains, furniture, clothing, or other ﬂ ammable objects are less than 36” from the front or side and 42” from the top of the ﬁ replace.

CAUTION: This gas ﬁ replace attains high temperatures. Keep children and adults away from hot surfaces to avoid ignition of clothing and/or burns. Even after the ﬁ replace is shutdown it will remain hot for a time afterward. Allow the surface to cool before touching it.

Carefully supervise young children when they are in the room with the ﬁ replace.

All ﬁ replace openings for both combustion air and exhaust must remain open and unobstructed at all times when the ﬁ replace is in operation.

The MASON-LITE ﬁ replace has been designed, tested and approved for zero clearance to combustible ﬂ oors. Be certain that the MASON-LITE ﬁ replace is installed with the ﬁ nished ﬁ re brick ﬂ oor of the ﬁ replace so that it is at least 4-1/2” (four and a half inches) above the combustible ﬂ oor system.

Warning to the structural engineer and/or building contractor: It is your responsibility to be certain that the ﬁ replace can be properly supported by the combustible ﬂ oor system on which the ﬁ replace will rest. Be advised that this engineering equation will be in addition to any live or dead weights that the ﬂ oor has to carry.

20” (508 mm)

0” (0 mm)

The MASON-LITE gas ﬁ replace is designed to be

1) installed with a B-vent metal chimney system, UL 103 chimney. Such chimney systems are acceptable where any traditional masonry ﬁ replace has been speciﬁ ed. Note that the chimney system must always vent to the outside of the building.

This Mason-Lite ﬁ replace is intended as a supplemental heat

2) source only. It is not intended as a primary heat source.

It is the responsibility of the contractor installer (not the

3) manufacturer) to ensure that adequate combustion air is provided for proper function of this ﬁ replace. 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.

There are many conditions beyond a manufacturer’s

4) control when it comes to the operation of the ﬁ replace. The manufacturer cannot be responsible for “smoke free” operation, nor can the manufacturer take on the responsibility for problems with surrounding construction; chimneys that have not been built at the right heights; system drafts caused by faulty mechanical systems; adverse weather conditions or any other inclement environmental situations over which the manufacturer has no control.

Inspect all ﬁ replace & chimney components for evidence

5) of damage prior to starting installation. Consult your local distributor for replacement parts if necessary.

Under no circumstances should you make any adjustments

6) or modiﬁ cations 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 ﬁ replace. You must follow these chimney instructions.

Chimney System Heights

When installed, the maximum overall height of the Fireplace is 40’-0” (forty feet). The minimum installed height of the completed ﬁ replace is 14’ 0” (fourteen feet), given that the chimney is straight. If the chimney includes one or more offset sections, the measurement is 17’ 0” (seventeen feet).

Page 10

Supporting Floor Systems

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 MasonLite can be properly supported by the combustible ﬂ oor system on which the ﬁ replace will rest.

For ﬁ replace support foundations installed on concrete refer to

Appendix I and II (pages 31 & 32) for speciﬁ c instructions.

Rebar locations

Lay-out the position of the ﬁ 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 ﬁ replace to wood ﬂ oor construction is required.

Refer to Figure 9 for anchorage dimensions. Four anchors are

required to attach to the sub-ﬂ ooring framing.

Crawl Space or Upper Floor:

For installation of ﬁ rebox over combustible crawl spaces or upper ﬂ oors, anchorage of the ﬁ rebox is required. Illustrations of examples of possible anchorage methods are shown in Figures 6 thru 8 depending upon the type of ﬂ oor framing. Final method of anchorage is to be determined by licensed design professional.

For conventional framing, where the ﬂ oor joists are parallel with the sides of the ﬁ rebox, the addition of ﬂ oor joists to align with the anchor brackets allows the brackets to be directly connected to the ﬂ oor joists.

Figure 6

Metal Base Assembly

EXAMPLE ONLY

Floor Sheathing not shown for clarity

Figure 7

I-Joist Anchoring Top View

A35 Brackets (16 required)

2X FLOOR JOIST

Note that additional ﬂ oor joists may be required to support the weight of the ﬁ rebox and chimney. Where the ﬂ oor joists run parallel to the front of the ﬁ rebox, anchorage can be accomplished in like manner as shown in Figure 6 using blocking between the ﬂ oor joist.

For ﬂ oors supported by I-Joists, the method of anchorage is illustrated in Figures 7 and 8. Figure 11 illustrates the general arrangement of anchorage to ﬂ oor framing.

It is important to take into consideration that the load for the Mason-Lite Fireplace must be considered as additional dead load that will have to be supported by the ﬂ oor framing. Additional ﬂ oor joists or I-joists may be required as determined by the licensed design professional.

The dead weights for the ﬁ 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 ﬁ replace installation.

As stated above, it is desirable to place additional framing for alignment of anchor rods. Refer to Figure 9 for anchor rod locations.

Simpson Strong-Tie A-35 or equivalent

Figure 8

I-Joist Anchoring Bottom View

Example Only

ist

I-Jo

Anchor Brackets

I-JOISTS

Example Only

Page 11

MASON-LITE Weight Determination

The following are dead load weight estimates for the Mason-Lite Fireplace.

Table I

Fireplace Model

Fireplace Weight

Mortar, Rebar & Ready Mix Concrete

Firebrick Lining

MGFP39 MGFP44 MGFP49

1,194 lbs. 1,250 lbs. 1,359 lbs.

350 lbs. 357 lbs. 364 lbs.

333 lbs. 345 lbs. 356 lbs.

Draft Hood

Floor Area

Other Weight Considerations:

Fireplace ﬁ nished facing (surround): This information needs to be obtained from the contractor.

Weight of metal ﬂ ue: See chimney manufacturer’s weight speciﬁ cations. Some chimney systems can weigh up to 50 lbs per

2) lineal foot.

17 lbs. 17 lbs. 17 lbs.

42” x 28” (8.12 ft²) 48” x 28” (9.33 ft²) 53” x 28” (10.30 ft²)

Table II - Deﬂ ection Limits

Construction L S or W D +L

Floor Members

For wood structural members having a moisture content of less than 16 per cent at time of installation and used under dry

conditions, the deﬂ ection resulting from L + 0.5D is permitted to be substituted for the de ﬂ ection resulting from L + D.

Note that MASON-LITE cannot accept responsibility for structural ﬂ oor support details. All drawings are presented as mere illustrations to indicate the presence of the underlying ﬂ 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 ﬂ oor support system.

Figure 9

I/360 --- I/240

Figure 10

Model A

MGFP39 38-3/4”

MGFP44 43-3/4”

MGFP49 48-3/4”

Figure 11

T ypical Anchorage Layout

10"

Fireplace outline

EXAMPLE ONLY

10”

SECTION VIEW ROTATED 90CW

Page 12

ATTENTION: Figure that these totals for the dead loads are

in addition to the actual live load as well as other dead load requirements for the speciﬁ ed site’s proposed ﬂ oor. Only the MASON-LITE weights are known. Other weights are estimates and are subject to material choices of the installer or owner.

What You Will Need

You will ﬁ nd that the MASON-LITE Fireplace is designed to be completely assembled on-site, consisting of interlocking precast parts. The parts of the ﬁ replace are made of Mason-Lite’s incredibly strong blend of specialty cement and a light weight aggregate.

IMPORTANT! When applying mortar, it is imperative that the concrete blocks be maintained moist (not soaking) so they don’t absorb the water out of the mortar and cause adhesion to fail. Frequently run a damp sponge to the parts before mortar is applied!

The installation of an anchor plate/damper is required but not supplied. You may purchase it from any chimney manufacturer or MFI. Also, an optional combustion air inlet MFP4-AK can be obtained from MFI. Refractory Firebrick Liners also need to be installed. These should be a minimum of 1-1/8” (one and one-eight inches) thick. The liner will be applied within the walls and hearth area of the ﬁ rebox. These are available from MFI. See page 27.

Tools needed for installations:

One 4’ level

●

Roto-hammer with ½” drill bit (needed for concrete slab

●

install only)

Drill motor with mixer blade (to mix Mason-Lite Mortar)

●

Two empty 5 gallon buckets (to mix Mason-Lite Mortar)

●

One wheelbarrow and shovel to mix concrete.

●

Grout bag

●

Triangular masonry trowel

●

Rubber hammer

●

Sponge and water bucket to wipe down and moisten parts

●

prior to applying mortar.

Materials needed for concrete slab installations

MGFP39:

Six (6) pieces 3/8” rebar x 36” long (included with unit) Six (6) pieces of rebar x 12” long (included with unit)

MGFP44/49:

Eight (8) pieces 3/8” rebar x 36” long (included with unit) Eight (8) pieces of rebar x 12” long (included with unit)

Eight (8) pieces 3/8” rebar x 36” long (included with unit) Eight (8) ea. All-thread x 12” long (with nuts and washers)

ALL UNITS:

Three (3) - 90 lb. bags of ready mix concrete with 1/4” or smaller aggregate.

SURFACE CRACKS - The MASON-LITE FIRE-PLACES are manufactured using high quality materials. During the drying process, surface cracking may occur. These small cracks (under 1/16” will not affect the ﬁ replace safety or performance). During the assembly process, ﬁ ll surface cracks with thin-set mortar and brush when drying for a smooth surface ﬁ nish.

Field Assembly Procedures

Mixing the MASON-LITE mortar – The mortar comes

premixed and should be dry. Be sure to use clean water and work it up into a mixture that is pasty but not lumpy. If it’s too thin and the surfaces don’t stay moist, the components will not adhere. Load the mixture into a standard grout bag.

Apply about ½” (one-half inch) thread of mortar. The mortar

bead should be approximately ½” (one-half inch) away from all edges. The mortar has a considerable amount of holding power so do not overload the components with too much mortar. Keep the components moist at all times!

Some mortar will “ooze out” when placing components

together, this is normal. Wipe excess away with a trowel. Do not cover component surfaces completely with mortar. 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.

Make sure components are level. It’s extremely important

that you pay careful attention to how you are assembling the Mason-Lite Fireplace since every component builds on the next. If you have to make any kind of an adjustment, do not try to do it “by loading an opening” with mortar, this will only result in a ﬁ replace that will not be plumb or level.

Use wood shims instead. You will ﬁ nd these small wood shims supplied with the Mason-Lite Fireplace and

you can nudge them in between openings to achieve the precision you need in making component adjustments. Once you have removed any shims, you will want to cover any gaps that may have resulted with the mortar.

ALL UNITS:

Epoxy for securing rebar in footing / foundation.

●

Three (3) - 90 lb. bags of Ready-Mix Concrete with 1/4” or

●

smaller aggregate.

Materials needed for wood floor installations

MGFP39:

Six (6) pieces 3/8” rebar x 36” long (included with unit) Six (6) ea. All-thread x 12” long (with nuts and washers)

MGFP-44/49:

Page 13

Fireplace Assembly Procedures

Place the Mason-Lite ﬁ replace hearth on the ﬂ oor where the

ﬁ replace is to be installed. For concrete slabs, supporting ﬂ oor needs to be rated at ASTM 90.

Draw an outline of the hearth area based on the dimensions

shown in Figure 12. 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. For other than concrete slabs, draw an outline of the hearth area based on the dimensions in Figure 5 taking special consideration on the position of where the all-thread studs will be located in relation to the anchoring locations. All-thread rods should stick up through the holes on the hearth slabs.

Figure 12

Left Side Hearth 2nd

Right Side Hearth 1st

Apply mortar

between joints

28”

Figure 14

Before installing side walls, conﬁ rm placement of outside

Hearth shown prepared for Left Side position

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 15

Side Wall shown prepared for Right Side Air Access. For Left Side, bead opposite side.

Model W

MGFP-39 43”

12 inch rebar

MGFP-44 48”

MGFP-49 53”

Mix a batch of mortar and prepare Right Side Hearth bottom

surface to be bonded as shown in Figure 13.

Align Right Side Hearth to the outline created. The overall

4. width should allow for an approximate gap of 1/8” between slabs for the additional mortar to unite the remaining slab. Check for surface ﬂ atness, level if necessary.

Figure 13

Apply mortar bead to all mating surfaces.

Hearth section shown prepared for Right Side position

1/2” mortar bead (typical)

1/2” away from edges

1/2” AWAY FROM EDGES

Keep the assembly of the next sections of the ﬁ rebox side

7. 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.

Figure 16

Side Wall

Apply mortar

Rear Wall

Side Wall

Apply mortar to the remaining Hearth except this time

5. apply beading on surface to be facing ﬂ oor as shown in

Figure 14.

Combustion Air Access Right or Left (Right shown).

Page 14

Install Downdraft Diverter and ﬁ nal row of Side Walls

(Figure 17). Then place #3 rebar (8 each, 36 inch long)

vertically through the cells until they reach bottom. Position them adjacent to the rebar or all-thread sticking up from the hearth.

All components must be level. Mix approx. 2 cu. ft. of ReadyMix Concrete. Fill all cells with Ready-Mix Concrete mix.

Assemble Lower Dome Sides as shown in Figure 20. The

11. beveled face lines up with the inward angles of the lintel sides. Resulting top surfaces should be level.

Figure 20

Lower Dome Sides (Rating Plate faces inside)

Figure 17

Downdraft Diverter

12 inch rebar or all-thread

Set the Lintel and Lower Rear Dome as shown in Figure

10.

19. Check that all is level. If adjustments are needed, use

shims and ﬁ ll gaps with an appropriate amount of mortar.

Note: Although you are cautioned to use MASON-LITE

mortar sparingly because it does have such holding power, you should look over the ﬁ rebox assembly at the end and ﬁ ll in any gaps, especially joint connections, with the mortar.

Figure 19

Lintel

Lower Rear Dome

Verify that the smoke dome side, front and rear walls are

12. aligning correctly and that the surfaces are smooth and uniform. Make sure connections are covered with an adequate amount of mortar. Remember that you have the option of using shims but they must be removed and any holes ﬁ lled. Make any adjustments to the ﬁ replace alignment before continuing to the next step.

Assemble Upper Dome and Dome Sides as shown in

13.

Figure 21. Check your assembly here. If things are

proceeding as they should be, the ﬁ nished top surface should be ﬂ at and level.

Figure 21

Upper Dome Front/Rear

Upper Dome Sides

Important: Adjustments can only be made while the mortar

is still wet when correcting for squareness and leveling.

Finally, set the Dome Top into position. Be sure that it is

14. ﬂ ush in every direction as you place it on the crest of the smoke dome wall assembly. After this is done, proceed to

section on “Installing Damper and Chimney System”.

Note: The chimney hole on the Dome Top is not centered from

front to back - it should be offset closest to the rear of the

ﬁ replace (see Figure 22).

Figure 22

Center of chimney hole is offset towards the rear.

10”

12-1/2”

MGFP-39/44/49

Page 15

Mason-Lite Firebrick Liner

The ﬁ rebrick lining is not supplied as part of your Mason-Lite

ﬁ replace but can be purchased from MFI. They are available in

split herringbone and full running bond patterns. (see Figures 24 and 25)

You also have the option to have custom ﬁ rebrick installed,

but it must be at least 1-1/8” thick.

Before you install the lining, you will need to drill all the required gas and electrical line feeds and the combustion air supply access holes.

Disclaimer: Masonry Fireplaces Industries cannot be held

liable for the way ﬁ rebrick or ﬁ rebrick mortar performs. It is not unusual for heat stress cracks to appear on the ﬁ rebrick or ﬁ rebrick mortar during the life of the ﬁ replace.

Insertion of Leg Bracket

Insert metal grate leg lock bracket underneath the rear bricks as shown and cement in place.

Figure 23

Insert leg here

Firebrick

Bracket

Figure 24

Figure 25

Fireplace Finishes & Combustible Trim Clearances

Mantel and Mantel Shelf Clearances – As with any radiant

1. heat ﬁ replaces, all Mason-Lite Fireplaces must comply with building code safety clearances, per units that have openings of 6 sq. ft. (six square feet) or greater. You must

keep combustibles such as trim 8” away from the ﬁ rebox

opening (for mantel clearances, see Figure 26).

Figure 26

Combustible material

8”

Shelf or trim

safe zone

1”

One-way

screw

Cement in place

Burner

leg

Width of back

grate legs (cen-

ter)

12”

3”

Upper ﬁ replace area

1.5”

Distances to underside of shelf or trim

Mantel and side clearances

Attention: The manufacturer suggests that when building

out a ﬁ replace, that the owner and installer opt for complete safety. MFI, therefore, advises that combustible mantel shelves feature clearances that are more than the 12” (twelve inch) minimum equal to the projection of the shelf. As a guide, ﬁ gure that a 10” (ten inch) wide shelf should be 20” (twenty inches) above the ﬁ replace opening.

Walls That Adjoin – Safety codes and all practical outlooks

2. insist that your ﬁ replace cannot be installed closer than 2 ft. (two feet) to any walls in the room the ﬁ replace is housed in or to any walls of adjoining rooms.

Page 16

Caution in Regards to Combustibles – If any part of the ﬁ replace or objects in the room (curtains, rugs, paint, cushions, etc.) start to show warping or discoloration due to heat from the ﬁ replace, it is time to take immediate action. Each installation requires a different set of circumstances to deal with the problem, but one thing is certain: do not use the ﬁ replace until you have ﬁ gured out how to address the problem. You are facing a potential ﬁ re hazard. The manufacturer of the MASON-LITE gas ﬁ replace cannot be responsible for the make-up of material on the exterior of the ﬁ replace you have chosen, nor can MFI 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 airﬂ ow or the room itself.

Installing Outside Air

Note that the most important aspect of the installation is the maintenance of minimum required clearances to combustible materials. Those speciﬁ c installation requirements must be followed with great precision as you are dealing with the potential of ﬁ re hazard if the correct combustible limit is not met and maintained. When you look at the drawings provided in this section, you will see that actual installations may vary due to individual design preferences. That is to be expected.

Design and framing speciﬁ cs may vary from the drawing to installationy. Clearances to combustibles is a stringent requirement.

WARNING:

If you do not use chimney manufacturer’s parts and/or if you do not follow exact instructions for installation of chimney components, you may be responsible for ﬁ replace malfunction, an accident or a ﬁ re hazard.

Be mindful that outside, fresh air is not required for the

1. operation of the Mason-Lite Fireplace. However, local building codes may require combustion air and it is an excellent choice in some situations, especially in weather conditions where homes are very well insulated and tightly sealed. Check local building codes for speciﬁ c requirements.

Install Outside Air Kit - MFP4-AK into the Mason-Lite

2. Firebox either through the side wall opening provided. The tubing that goes out of the ﬁ rebox wall must feed into a ﬂ exible metal conduit as the source for outside combustible air. It can go straight out through an outside wall or into a ventilated crawl space. If crawl space is used, check codes for proper termination.

Be sure that you carefully check the source of the outside

3. 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 location that is too close to any other structure.

The suggested maximum height for the air intake tubing

4. is 50 ft. (ﬁ fty feet) above the hearth. That height is if the intake ﬁ nishes off at a minimum of 3 ft. (three feet) below the chimney cap level.

Install a screened termination cap to keep out animals.

Mason-Lite Chimney Systems

Overview

This Mason-Lite gas ﬁ replace may be installed with an approved 10” B-vent chimney system. A metal chimney adapter is required to attach the chimney to the top of the ﬁ rebox. This can be purchased from FMI: part number MFP-DD.

Attention: Be advised that your choice of Chimney System

meets the following standards and requirements:

Designed for installation in accordance with National Fire

●

Protection Standard

Meets requirements of NFPA 211

●

Designed in accordance with BOCA Basic National Codes

●

Meets Uniform Building Codes.

●

General Chimney Requirements for Height and Clearance

When installed, the maximum overall height of the chimney

system from bottom of ﬁ replace to the top/termination chimney

is 40 feet. The minimum installed height of the completed

Chimney System is 14 feet with a straight ﬂ ue stack, 17 feet if the chimney includes one or two offset sections.

Throughout the length of the chimney – along the outer periphery of the ﬂ ue you must have at least 1” (one inch) of clearance all around the circumference. When the chimney is passing through a living space, it must be completely closed off. A “live” chimney is never allowed to be within reach of humans; the chimney must be completely designed to be hidden from view and protected, away from human interaction.

Note that it is acceptable for the chimney’s ﬁ restop space and roof ﬂ ashing to come in direct contact with common construction materials, such as drywall, ﬂ ooring, paneling, plywood, millboard, particle board and a variety of normal framing materials. Always follow the speciﬁ c installation requirements of your selected chimney manufacturer.

Determining Finished Height for Fireplace

Overview

Installers are cautioned to put the chimney system together exactly as instructed and shown in chimney manufacturer’s guide. Any variations may have serious consequences resulting in an accident or malfunction. If instructions are not followed, the warranty on the product will become null and void.

Figuring out the exact height of the Mason-Lite Fireplace you are about to install is relatively easy if you follow a few simple steps. It is a matter of determining the number of chimney sections and the chimney components that will be required for the installation. Bear in mind that the minimum height of the MASON-LITE once installed is 14’0” (fourteen feet) and that it

Page 17

is higher if offsets are used. Here is how to calculate the height of the completed ﬁ replace:

First, ascertain the height of the chimney. This includes the distance from the very top of the smoke dome to where the top of the ﬂ ue ends. That is where the smoke leaves the ﬂ ue.

Aside from the chimney sections, include all the components that you will be using in your installation - anchor plate damper, ﬁ restop spacers, stabilizers, and offsets.

Create a Component Height Chart by measuring each component and completing the following: Anchor Plate = 4 ” Firestop Spacers = _ _ _ _ _ _ Support box = _ _ _ _ _ _ Stabilizers = _ _ _ _ _ _ Offsets = _ _ _ _ _ _ Pipe Sections = _ _ _ _ _ _ (Stabilizer – Must be present on vertical chimneys every 30 feet and on offset chimneys every 10 feet.)

Take the total height of every component that will be included in your installation and then subtract that from the desired total height you wish the ﬁ nished ﬁ replace system to be.

You will need to refer to the chimney manufacturer’s information in order to ﬁ gure out the available lengths and the quantity of the sections that you will need.

The Special Case of Offset Installation

Overview

Special, detailed installation instructions must be given for the proper handling of offsetting for the chimney system. Maximum offset is 30 degrees off of vertical and there should be no more than one offset sequence per chimney system. Under no circumstances should two offsets be attached to comprise a 60 degree offset conﬁ guration. Always maintain at least 2” (two inches) of clearance around all offset installation for air space and necessary clearance from combustibles.

Working with Floors and Ceilings

It is quite probable that when your installation must pass through a ﬂ oor or ceiling, you will have to opt for a 30 degree angle in which case you are advised to use a ﬁ restop spacer. Should the length of the chimney below the ﬂ oor or ceiling be less than 10’ (ten feet), support the chimney at the juncture of the ﬂ oor/ ceiling with a stabilizer. As in all phases of chimney component installation, you will want to be sure you are making allowances at every juncture for the 2” (two inch) clearance space from combustibles.

Background Information on Offset Installation

When obstructions are present, it will be necessary to

offset sections of the chimney using the 30 degree offset component and, for every offset component, two elbow components. One elbow begins the installation procedure and the second elbow is used to ﬁ nish off each section. In all likelihood, a 30 degree offset elbow will probably be the ﬁ rst hardware used off the top of the anchor plate damper.

Note: Under no circumstances should you use an offset

elbow in place of a return elbow. They have distinct purposes in the conﬁ guration of the offset installation and they cannot be interchanged, part for part.

Depending on the conﬁ guration you are contending with,

you may either attach the elbows and offset piping together or you may need to insert sections of the vertical chimney. Whatever the scenario, you cannot allow sections of the chimney to measure more than 20’ (twenty feet) between the elbows.

Assuming you have sections of vertical pipe that are more

than 10’ (ten feet) measuring between elbows, you must insert – at midpoint – a chimney stabilizer. When installing the stabilizer, pull out the support straps with a good amount of tension and hammer to the frame.

If your offset sections go over 6’ (six feet) in length, you

will need to give added support using a sheet metal screw – a # 8 x ½” is recommended. The screw will be fastened underneath the joint.

To ensure a tight ﬁ t for the screw, drill a hole that is 1/8”

(one-eighth inch) in diameter right at the chimney joint’s underside. Be sure that you position the drill at the very center of where the joint overlaps. Be very careful not to drill through the inner casting; drill only through the outer chimney.

Installing Vent Plate and Chimney System

Before installing your B-Vent to the Mason-Lite Firebox you must install a steel vent plate. The vent plate mudt be installed in the vertical (open) position on the outside of the vent pipe and is designed to close-off the chimney in the event the pipe is removed or fails, thus alerting the operator of a problem. Next, attach the masonry anchor plate (supplied). The anchor plate is pre-drilled with holes for four (4) cement wedgeanchors.

Place the plate and mark the top of the ﬁ rebox. Then remove

the plate to carefully pre-drill holes for the wedge anchors.

Using the supplied vent plate, apply a 1/4” (one quarter

inch) bead of gasket cement around the base damper lead pipe. Apply ceramic rope gasket on to the gasket cement.

Apply balance of gasket cement in a 1/4” (one quarter

inch) bead on top of smoke dome top approx. 3” (3 inches) outside of outlet hole. Install damper on top of unit pressing damper into cement. Attach using four (4) #8 cement wedge-anchors.

Page 18

Venting Installation

A “B-type” venting system must be connected to the appliance for venting to outside of building. The following section is provided as a guide to a standard B-type vent installation.

Standing codes requirements concerning B-type vent installations may vary within your state, province or local codes jurisdiction. Therefore, it is recommended that you check with your local building codes for speciﬁ c requirements or in absence of local codes, follow Section 7.0 of the current National Fuel Gas Code ANSI Z223.1/NFPA 54 for Category I systems using double wall B-1 vent pipe. This gas appliance must be vented to the outdoors only and may not be terminated into an attic space or into a chimney ﬂ ue servicing a solid fuel burning appliance. This appliance may be vented through a manufactured chimney system or a masonry chimney using a B-vent adapter or a chimney liner system if the system is listed, inspected and approved by local codes and/or building authorities. The examples shown in Fig. 2 are typical of most B-vent installations and codes practices.

Example 1: Shows the minimum allowable system height and

lateral offset for an inclination of 60° or greater. Code speciﬁ es that offsets of 60° or greater are considered horizontal and must follow the 75% rule for lateral to total vertical system height. Codes also allows only one offset in the total system when at 60° or greater. The total vertical height in this example represents the minimum height of 8 ft. and therefore the allowable lateral is 6 ft. when the 75% rule applies. If the lateral length must exceed 75% then the system must be sized in accordance with the Category I venting tables.

Example 2: Shows a multiple offset each at a 45° inclination.

Multiple offsets are permitted if they do not exceed a 45° inclination. The total lengths of the two offsets are not required to meet the 75% allowable rule.

Example 3: Shows a single offset at 45° of inclination and

therefore the lateral length at 10 ft. of offset does not have to meet the 75% rule. In each case the offsets must be supported and ﬁ restops must be positioned wherever the vent must pass through a sub-ﬂ oor, ceiling joist or an attic overhang. The vent pipe must terminate vertically into a listed type vent cap and extend a sufﬁ cient height through an approved roof ﬂ ashing, roof jack or a roof thimble. At all points the listed clearances must be maintained.

Vent terminations must be located in accordance with height and proximity rules of NFPA No. 54. These rules apply to vents at 12” diameter or less and require a minimum height in accordance with the roof pitch and a minimum of 8 ft. distance from a vertical wall or obstruction (see Fig. 3).

If venting horizontally through a side wall becomes necessary, a listed thimble approved for use with B-type vent must be used. Check with your local codes before venting through a side wall.

Some codes areas allow the use of existing B-type vent systems if the system is at or above the recommended diameter of the ﬂ ue. The ﬂ ue connection must be made using listed B-type connectors and the existing system must be code inspected for damage and proper installation.

It is not recommended that this appliance be common vented with an existing gas burning appliance. However, if it becomes necessary to common vent this appliance, the venting system must be sized and conﬁ gured in accordance with the common venting guides Appendix G of the current National Fuel Gas Code NFPA No. 54/ANSI Z223.1.

Note: Before connecting this appliance to an existing vent

system or a common venting system, consult with your local architect, planner, or building ofﬁ cial.

Figure 2

Page 19

Specifying Chimney Heights

Chimney Termination Units

Important Pre-installation Information

If the horizontal distance from the mid-point of the chimney to the peak of the roof ridge is less than 10 feet, the top of the chimney must be at least 2 feet above the roof ridge. This is called the “2 foot in 10 foot” rule. If the horizontal distance from the chimney’s center measured across to the ridge of the roof is more than 10 feet, the top of the chimney still needs to be at least 2 feet above a point measured from a distance of 10 feet horizontally along the roof.

Figure 3

Chimney Termination Units

You will be installing at or possibly near the top of the chimney chase ﬂ ashing. A top termination unit is the essential piece of equipment in keeping sparks out of the atmosphere. Before installing this important piece of equipment, you will have to make a judgment call as to whether or not the termination unit – like all the other exterior exposed chimney components, for that matter – should be painted in order to protect it/them from rusting and weathering. Particularly if you are installing the ﬁ replace and chimney near water or in a high humidity area, the manufacturer recommends a top quality, rust-proof paint especially formulated for metal. Follow the paint manufacturer’s directions, applying the paint well before you are scheduled to install the round top termination unit or any of the ﬂ ashings or ﬂ ues that will be exposed to outside weather conditions. Venting terminals shall not be recessed into walls or siding. This appliance, when installed, must be electrically grounded in accordance with local codes and in the absence of local codes, with the National Electrical Code, ANSI NFPA 70, or the Canadian Electrical Code, CSA C22.1.

Important Pre-installation Information

Before you begin, review the information and safeguards below regarding the installation and operation of the gas Fireplace.

This ﬁ replace may only be connected to the gas supply listed on the label. Never use propane gas in a gas ﬁ replace

designed for natural gas or natural gas in a gas ﬁ replace designed for use with propane gas.

Though there are many conﬁ gurations in meeting these requirements, chimney height cannot be less than 3 feet above the roof at the edge of the chimney. If the roof is ﬂ at, the chimney must extend no less than 3 feet from where it intersects the roof. If the chimney is entering the roof at an angle, measure the shorter angle where the chimney intersects the roof which should be at least 3 feet.

Note: The previous guidelines do not take into consideration

outside conditions which may require a higher chimney due to foliage, other buildings, power lines and weather conditions in your area. Follow the chimney manufacturer’s installation guide for further information.

The gas ﬁ replace must be installed by an MFI Certiﬁ ed or other qualiﬁ ed professional installer. The installation, including provisions for combustion and ventilation air, must conform with local codes, or, in the absence of local codes, with the latest edition of the National Fuel Gas Code, ANSI Z223.1, and NFPA54.

Keep the ﬁ replace area clear and free from combustible materials, gasoline, and other ﬂ ammable vapors and liquids.

The ﬁ replace must have a gas supply line that has been installed by a qualiﬁ ed technician in accordance with all local codes. The gas supply line must be 1/2” minimum interior diameter. If the gas line to the ﬁ replace is longer than 5’, a larger diameter line may be necessary.

Burner P/N

GML-24-01(N)(P) 60 28/48 47/56 MGFP-39 or

GML-30-01N 90 19/41

GML-30-01P 84 40/55

BTU*

(x 1000)

Oriﬁ ce Drill

Size (top/front)

Nat LP

Included in

-44

MGFP-49

*Nominal BTU based on gas inlet pressure. Nominal gas inlet pressure for natural gas is 5” W.C.

Page 20

Figure 27

Vent Plate Installation

Attention: Clearance to combustible construction can not be

reduced during course of construction. For the safe operation of the ﬁ nished ﬁ replace, these clearances must be followed when building the framework to house the chimney system.

Figure 28

Figure 29

Installing the valve/control box assembly

Fasten the valve/control box assembly to a stud such that

1. the control switch is facing in the desired direction and ﬂ ush with the future location of the ﬁ nished wall or other enclosure.

Install the two ‘D’ batteries into the battery holder within the

2. control box.

Run the wires for the spill switch through the small hole

3. in the upper wall. Important: This control box must remain accessible and removable for service after installation.

Installing Spill Switch and Bafﬂ e assembly

Connect the blade connectors on the spill switch wires to

1. the matching wires from the valve/ control box assembly coming through the upper hole in the ﬁ rebox.

Center the black steel bafﬂ e with the spill switch sensor

2. pointed toward the room (out of the ﬁ replace).

Use six (6) drywalls screws to fasten it in place on the front-

3. most part of the ﬁ rebox ceiling as shown through the six (6) pre-drilled holes.

Attach the trim plates to the left and right side of the bafﬂ e

4. with the sheet metal screws so that the edges are ﬂ ush with the ﬁ rebrick.

Figure 30

Trim

plate

Spillover

switch

Trim

plate

Spill sensor wires to valve/ control box

Owner’s Operation & Precautions

Installers of the Mason-Lite are urged to call the attention of ﬁ replace owners to the following precautions.

The installer should hand-deliver this owner’s manual to the owner or leave behind with the unit after it the installation is complete.

Important: This bafﬂ e assembly and only this the supplied

assembly (with spill switch) must be properly installed for the safe operation of this gas ﬁ replace.

Warning: Use only the included ﬁ replace grate or manufacturer

approved replacement.

Warning: Do not attempt to operate your ﬁ replace without a ﬁ re

safety screen installed.

Page 21

CAUTION: Use only the logs that come with this gas ﬁ replace.

The manufacturer cautions against using chemical chimney

cleaners. Never burn solid fuel in this ﬁ replace under any

circumstance.

First Lighting of the Mason-Lite – After construction is

1. completed, all elements of the ﬁ replace and chimney system must be completely dry. This means that the unit must stand without any ﬁ ring for a minimum of 28 days. Only after that period of time can a ﬁ rst lighting take place. Do not let the ﬁ re burn for more than one hour. After this ﬁ rst

lighting – when the ﬁ replace has started to “cure” Do not set

another ﬁ re for at least 24 hours.

Second Lighting – With the second lighting you can let the

2. ﬁ re burn two hours – no more.

After First and Second Lighting – When the ﬁ replace has

3. been properly cured with careful “maiden” ﬁ rings, you will be able to run the burner for as long as you like.

Attaching the Burner and the Grate

Unpack the burner assembly and place the rear legs of

1. the burner into the brackets in the back of the ﬁ rebox (see

Figure 23).

Thread the pilot lines from the burner pilot assembly and

2. through the hole in the lower side of the ﬁ rewall to the valve/ control box assembly and attach to the valve.

Connect the supplied ﬂ ex connector from the output of the

3. valve, through the hole and to the burner.

Connect the second ﬂ ex connector from the input of the

4. valve to the gas stub down stream from the required manual shut-off valve.

Note: The required 1/8” NPT up stream pressure tap is built

into the valve (Figure 33). CAUTION: CHECK ALL CONNECTIONS FOR GAS LEAKS

USING A HALF-AND-HALF SOAPY WATER SOLUTION.

IF A LEAK IS DETECTED TIGHTEN CONNECTIONS AND TEST AGAIN.

NEVER USE AN OPEN FLAME TO CHECK FOR GAS LEAKS.

Checking and Adjusting the Pilot

Follow the lighting instructions to light the pilot. The pilot ﬂ ame should encircle the generator tip which is preset at

the factory (Figure 32). Ordinarily, the pilot will not require

ﬁ eld adjustment.

If adjustment is necessary, remove the cap screw (Figure

32) and turn the smaller gas adjustment screw inside

counterclockwise to increase the pilot ﬂ ame and clockwise to decrease the pilot ﬂ ame. Replace cap screw.

Figure 31

Figure 33

Note: This burner system is equipped with an APK-01 valve

assembly.

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 Lava Rock on the logs or grate.

Figure 32

Pilot

Flame

Electrodes

Figure 34

Open

Insert a one-way screw into the hole in the front of each

5. bracket and tighten with a long (min. 12”) screw driver until contact is made with the grate leg and the grate is permanently

locked in place (see Figure 23).

IMPORTANT: Once installed the burner cannot be

removed.

Fill in the holes you have drilled around the gas piping with

6. the regular MASON-LITE mortar.

Adjusting Air Mixers

Burners are equipped with air mixers for the top and front burners. Adjust the size and color of the ﬂ ame by opening (turn

outward) or closing (turn inward) as shown in Figure 33, 34.

Page 22

Log Placement

Figure 35

Start with the grate/burner assembly in place

Figure 37

Place front bottom log

GML-24 shown

Figure 36

Figure 38

Place back bottom log

Place back top logs (#8 and #9)

Figure 39

Place front top log (#7) All logs in place

Placing the Logs

Place the back bottom log on the grate behind the top burner

1. and as far forward (against the top burner) as possible without touching the pilot. The ﬂ at side should be down and

the heat chambers facing the back of the ﬁ replace (Figure

35).

Place the front log on the grate in front of the top burner

2. pipe with the ﬂ at down and the heat chambers toward the burner pipe and the log as far forward as possible while

keeping the back parallel with the burner pipe (Figure 36).

Place top logs across the front and back logs in the order

and positions shown in Figure 40.

Figure 40

WARNING

Failure to position the parts in accordance with these diagrams or failure to use only parts speciﬁ cally

approved with this appliance may result

in property damage or personal injury.

Page 23

O U T

I N

P I

LO T

Lighting and Operating Instructions

FOR YOUR SAFETY, READ BEFORE LIGHTING

WARNING: If you do not follow these instructions exactly, a ﬁ re or explosion may result causing property

damage, personal injury or loss of life.

Do not use this gas ﬁ replace if any part has been underwater. Immediately call for a qualiﬁ ed professional service technician to inspect the ﬁ replace and to replace any part of the control system and any gas control which has been under water.

The Mason-lite burner system has a pilot which can be lit by hand using a match or lighter. When lighting the pilot, follow these instructions exactly.

BEFORE LIGHTING, smell all around the burner area for gas. Be sure to smell next to the ﬂ oor as some gas is heavier than air

and will settle on the ﬂ oor. IF YOU SMELL GAS, FOLLOW THE INSTRUCTIONS ON THE COVER (P. 1).

TO LIGHT THE FIREPLACE WITH THE WALL SWITCH

Move the ON-REMOTE-OFF wall switch to the ON position (Figure 41). This transmits a rapid series of sparks at the pilot

head and will ignite the gas.

TO SHUT DOWN THE GAS FIREPLACE USING THE WALL SWITCH

Move the switch to the OFF position (Figure 41). The gas ﬂ ow

will cease, and all ﬂ ames (main burner and pilot) will go out (see important note below).

OPERATING THE BURNER USING THE REMOTE

Move the wall switch to the REMOTE position and follow the instructions included in the remote kit for lighting and shutting down the attached burner.

IMPORTANT: Do not allow the ﬁ replace opening to be

blocked in any way while operating the ﬁ replace. The ﬁ replace may be operated with a Mason-Lite screen installed and drawn.

MAINTAINING THE PILOT

Your gas ﬁ replace is equipped with a safety pilot that will shut off the gas supply in case the pilot is not burning or functioning properly. Regularly verify that the pilot is adjusted properly with

the pilot ﬂ ame hitting the electrodes as shown in Figure 42. If the

pilot will not stay lit, call your local gas utility or gas supplier.

TO CHECK UPSTREAM GAS PRESSURE

Unscrew the four (4) screws above and below the control panel face, then pull the control panel out far enough to expose the

test ports on the valve (Figure 41). Unscrew the port marked IN

part way and test.

CAUTION: Do not kink the ﬂ ex connectors coming from the

valve while accessing it.

Figure 42

Lighting the Pilot

Figure 41

Upstream gas

pressure tap

Note: Pilot ﬂ ame should encircle top of electrodes.

See instructions cover for example of proper main burner ﬂ ame pattern.

REMOTE

OFF

Figure 43

Page 24

Maintenance and Service

Troubleshooting

Maintenance

Once installed and operating properly, the Mason-lite gas ﬁ replace requires very little maintenance. You should inspect the ﬁ replace, chimney, burner and control annually for the following:

Excessive Sooting - Some sooting of the logs is normal

and adds to the natural appearance of burned wood. If soot accumulates, you may brush the soot off with a stiff brush. Logs may also be cleaned by allowing them to heat up, then spraying them with water where soot has accumulated.

Debris around the control - Inspect the control and pilot to

be sure it is free of any dirt or debris.

Insects and burner blockage - Check the burner ports

and the air-mixer, if present, to make sure they are free from debris. Blocked burner ports and oriﬁ ces may result in poor ﬂ ame distribution or ﬂ ame at air mixer (if equipped). Reference SOLUTION, to symptoms 2-4, of

Troubleshooting.

Troubleshooting

PROBLEM CAUSE SOLUTION

a. Pilot generator may not be producing

sufﬁ cient millivolts.

b. Pilot ﬂ ame making a blowing sound b. Pilot needs adjusting (see “Checking and

Pilot will NOT stay lit.1.

2. Pilot Burning. No Gas to Burner.

3. Fireplace Not burning properly.

4. Fireplace will not shut OFF.

5. Frequent pilot outage.

6. Fireplace shuts down during operation.

7. Excessive soot on logs.

c. Generator wire leads attached to the

wrong terminals on the valve.

d. Defective thermo-magnetic safety in

valve.

a. Safety valve not turned to the ON position

after lighting pilot.

b. Wire leads are not properly connected to

valve or switch terminals.

c. Voltage to pilot generator too low. c. See section 1a above.

d. Defective valve. d. Replace valve.

a. Low ﬂ ame/uneven ﬂ ame. a. Check for low gas pressure; minimum

a. Control Switch lead wires to the valve

may be shorted together or on wrong terminals.

a. Pilot ﬂ ame is out of adjustment. a. See section 1b above.

b. Down drafts from the chimney,

extinguishing the pilot.

a. Improper venting causing spill switch to

trip repeatedly.

b. Spill switch improperly mounted. b. See section on “Installing Spill Switch and

c. Smoke Diverter not in place. c. Install Smoke Diverter with Spill Switch per

a. Yellow ﬂ ame impingement. a. Open air shutter on front burner or main

Service

It is recommended that a qualiﬁ ed professional service technician be called to service the gas ﬁ replace and its venting system at least annually or should service be required. More frequent cleaning may be required due to excessive lint from carpeting, bedding material, etc.

It is imperative that control compartments, burners and circulating air passageways of the appliance be kept clean.

The Troubleshooting section of these instructions serves as a guide for ensuring optimum performance of the gas ﬁ replace.

Flame Appearance

The ﬂ ames should be blue at the base and a combination of blue/yellow at the body and tips.

a. Check with a millivolt meter. Should be 250

millivolts or more.

Adjusting the Pilot” on page 22).

c. Connect leads per wiring diagram, previous

page.

d. Replace valve.

a. Turn to ON position.

b. Attach all wire leads tightly to proper terminals

(See wiring diagram, previous page).

operating pressures of 5” W.C. at manifold.

a. See wiring diagram, previous page. System

takes 15-20 seconds to complete shutdown (nominal).

b. Check draft. Consult with a qualiﬁ ed chimney

expert.

a. Check draft. Consult with a qualiﬁ ed chimney

expert. Consider installing a combustion air kit.

Bafﬂ e Assembly” on page 21.

instructions.

burner as needed.

Page 25

)

(f’

used to

d,e,f

3,000

3,500

, shall be as

f’

d,e,f

Weathering Potential

2,500 3,000

Negligible Moderate Severe

MINIMUM SPECIFIED COMPRESSIVE STRENGTH

support foundation for the fireplace installed on concrete shall

Appendix I

TABLE R402.2 MINIMUM SPECIFIED COMPRESSIVE STRENGTH OF CONCRETE

consist of a minimum of 6 inches thick reinforced concrete slab. The minimum specified compressive strength of

required in Table R402.2 of the International Residential Code (IRC). Concrete subject to moderate or severe weathering as indicated

For installations regulated by the International Residential Code, the

in Figure R301.2(3) of the International Residential Code (IRC) shall be air entrained as specified in Table R402.2 of the International

Residential Code (IRC). The maximum weight of fly ash, other pozzolans, silica fume, slag or blended cements that is included in

produce concrete and testing thereof shall comply with the applicable standards listed in Chapter 3 of ACI 318.

shall not exceed the percentages of the total weight of cementitious materials specified in Section 4.2.3 of ACI 318. Materials

concrete mixtures for garage floor slabs and for exterior porches, carport slabs and steps that will be exposed to deicing chemicals

accordance with Footnote d.

c. Concrete in these locations that may be subject to freezing and thawing during construction shall be air-entrained concrete in

a. Strength at 28 days psi.

b. See Figure R301.2(3) for weathering potential.

d. Concrete shall be air-entrained. Total air content (percent by volume of concrete) shall be not less than 5 percent or more than

TYPE OR LOCATION OF CONCRETE CONSTRUCTION

For installations regulated by the International Building Code (IBC), the support foundation for the fireplace installed on concrete

1903, 1904 and 1905 of the International Building Code (IBC).

shall consist of a minimum of 6 inches thick reinforced concrete slab. The concrete strength and durability shall comply with Sections

Basement walls, foundations and other concrete not exposed to the weather 2,500 2,500 2,500

Basement slabs and interior slabs on grade, except garage floor slabs 2,500 2,500 2,500

work exposed to the weather

Basement walls, foundation walls, exterior walls and other vertical concrete

Porches, carport slabs and steps exposed to the weather, and garage floor slabs 2,500 3,000

7 percent.

3 percent is permitted if the specified compressive strength of the concrete is increased to not less than 4,000 psi.

e. See Section R402.2 for maximum cementitious materials content.

f. For garage floors with a steel troweled finish, reduction of the total air content (percent by volume of concrete) to not less than

Page 26

Appendix II

FIGURE R301.2(3) WEATHERING PROBABILITY MAP FOR CONCRETE

a. Alaska and Hawaii are classified as severe and negligible, respectively.

severe classification is where weather conditions result in significant snowfall combined with extended periods during which there is

b. Lines defining areas are approximate only. Local conditions may be more or less severe than indicated by region classification. A

little or no natural thawing causing deicing salts to be used extensively.

Page 27

Limited Warranty

Mason-Lite™ Fireplace

Masonry Fireplaces Industries, LLC (MFI) warrants all MASON-LITE Fireplaces to be free from defects in materials that adversely affect ﬁ replace performance for a period of ten (10) years from the date of purchase, subject to the terms and conditions of this limited warranty. MFI does not warrant accessory chimney, outside air ducts, gas control or burner system, ceramic logs, and devices not manufactured by MFI. Valves and electronic parts are only covered for one year parts and labor per the log set manufacturer’s warranty. The manufacturer’s warranty for the gas log set is ﬁ ve (5) years and the electronic ignition and valve is for one (1) year.

This warranty covers only products manufactured by MFI, speciﬁ cally the modular concrete ﬁ 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, MFI 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 MFI, 315 W. 3rd Street, Santa Ana, CA 92701 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. MFI, or any entity thereof, is not responsible for any labor costs or indirect costs incurred for the replacement of defective components.

MFI is not responsible for misuse or mishandling of component parts. Nothing in this warranty makes MFI, or any entity thereof, liable in any respect for any injury or damage to the building or structure in which the ﬁ replace has been installed or to the persons or property therein arising out of the use, misuse, or installation of properly manufactured MFI product.

MFI, 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 ﬁ replaces are not installed pursuant to the installation instructions provided by MFI and local building codes have not been followed completely.

This warranty applies only to those ﬁ 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.

MFI 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 Masonry Fireplace Industries, L.L.C. Accessory orders will be accepted by mail, or you may call to order Monday through Friday from 1:00 p.m. to 5:00 p.m. (Paciﬁ c Standard Time) at: (800) 345-7078. Please complete the following information for future reference and warranty veriﬁ cation:

Date of Purchase ____________________20____ Model # ________________ Serial # ________________

Masonry Fireplace Industries, LLC 315 West 3rd Street Santa Ana, CA. 92701