Majestic Marquis II See-Through Direct Vent Gas Fireplace Installation guide

1

Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

Installation Manual

Installation and Appliance Setup

NOTICE: DO NOT discard this manual!

• DO NOT store or use gasoline or other am-

mable 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.

- Leave the building immediately.

- Immediately call your gas supplier from

a neighbor’s phone. Follow the gas sup-

plier’s instructions.

- If you cannot reach your gas supplier, call

the re department.

• Installation and service must be performed

by a qualied installer, service agency, or the

gas supplier.

WARNING:

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly

could result in serious injury, death, or

property damage.

This appliance may be installed as an OEM

installation in manufactured home (USA

only) or mobile home and must be installed

in accordance with the manufacturer’s

instructions and the Manufactured Home

Construction and Safety Standard, Title 24

CFR, Part 3280 in the United States, or the

Standard for Installation in Mobile Homes,

CAN/CSA Z240 MH Series, in Canada.

This appliance is only for use with the type(s)

of gas indicated on the rating plate. This

appliance is not convertible for use with other

gases, unless a certied kit is used.

DANGER

HOT GLASS WILL

CAUSE BURNS.

DO NOT TOUCH GLASS

UNTIL COOLED.

NEVER ALLOW CHILDREN

TO TOUCH GLASS.

A barrier designed to reduce the risk of

burns from the hot viewing glass is provided

with this appliance and must be installed for

the protection of children and other at-risk

individuals.

Models: MARQ42STIN

MARQUIS

SERIES

CAUTION! Risk of Fire! DO NOT store instruction manuals inside replace cavity.

High temperatures could cause a re.

INSTALLER: Leave this manual with the appliance, not inside the appliance.

CONSUMER: Retain this manual for future reference. Do not store inside the appliance.

Pour demander un exemplaire en français de ce manuel

d’installation, visitez www.majesticproducts.com.

2Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

Safety Alert Key:

• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.

• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.

• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

• NOTICE: Used to address practices not related to personal injury.

Table of Contents

Installation Standard Work Checklist ....................3

1 Product Specic and Important Safety Information

A. Appliance Certication ............................4

B. Glass Specications ..............................4

C. BTU Specications ...............................4

D. High Altitude Installations .......................... 4

E. Non-Combustible Materials Specication. . . . . . . . . . . . . . 4

F. Combustible Materials Specication .................4

G. Electrical Codes .................................4

H. California ......................................4

I. Requirements for the Commonwealth of Massachusetts . . 5

2 Getting Started

A. Design and Installation Considerations ...............6

B. Good Faith Wall Surface/TV Guidelines ..............6

C. Tools and Supplies Needed ........................6

D. Inspect Appliance and Components ..................7

3 Framing and Clearances

A. Appliance/Decorative Barrier Front Dimension Diagrams . 8

B. Clearances to Combustibles ......................10

C. Constructing the Appliance Chase .................. 11

D. Hearth Extension ...............................12

E. Elevated Hearth Systems .........................13

F. Floor Protection ................................13

4 Termination Location and Vent Information

A. Vent Termination Minimum Clearances ..............14

C. Vent Terminal Clearances ........................15

C. Approved Pipe .................................16

D. Use of Elbows .................................16

E. Measuring Standards ............................17

F. Vent Diagrams ................................. 18

5 Vent Clearances and Framing

A. Pipe Clearances to Combustibles ..................23

B. Wall Penetration Framing/Firestops .................23

C. Ceiling Firestop/Floor Penetration Framing ...........24

D. Install Attic Insulation Shield .......................24

6 Appliance Preparation

A. Vent Collar Preparation ..........................25

B. Securing and Leveling the Appliance ................26

7 Venting and Chimneys

A. Assemble Vent Sections (DVP Pipe Only) ........... 27

B. Assemble Slip Sections ..........................28

C. Secure the Vent Sections .........................29

D. Disassemble Vent Sections ....................... 29

E. Vertical Termination Requirements ..................30

F. Horizontal Termination Requirements ...............31

8 Electrical Information

A. General Information .............................33

B. Wiring Requirements ............................34

9 Gas Information

A. Fuel Conversion ................................35

B. Gas Pressure .................................. 35

C. Gas Connection ................................35

D. High Altitude Installations ......................... 35

E. Air Shutter Setting ..............................36

F. Service/Replace Appliance Gas Valve ...............36

10 Finishing

A. Facing Material .................................37

B. Mantel and Wall Projections .......................38

C. Decorative Fronts ...............................39

11 Appliance Setup

A. Fixed Glass Assembly ...........................40

B. Remove the Shipping Materials .................... 41

C. Clean the Appliance .............................41

D. Accessories ...................................42

E. Installing the Optional Heat-Zone® Gas Kit .............42

F. Install Light Bulbs ..............................42

G. Install Teco-Sil (Glass Ember Rock) .................43

H. Mystic Ember Placement .........................44

I. Ember/Mineral Wool Placement ....................44

J. Log Set Assembly ..............................45

K. IntelliFire Touch Control System Setup ..............50

12 Reference Materials

A. Vent Components Diagrams ......................51

B. Accessories ...................................57

 = Contains updated information.

Note: The term “recommend” or “recommended” does not indicate a requirement. It is a best practice suggested by

Hearth & Home Technologies®.



3

Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

Installation Standard Work Checklist

Customer:

Lot/Address:

Model (circle one): MARQ42STIN

Date Installed:

Location of Fireplace:

Installer:

Dealer/Distributor Phone #

Serial #:

Comments Communicated to party responsible ____________________ by ______________________on ___________

(Builder / Gen. Contractor/) (Installer) (Date)

 = Contains updated information.

Hearth & Home Technologies recommends the following:

• Photographing the installation and copying this checklist for your le.

• That this checklist remain visible at all times on the appliance until the installation is complete.

This standard work checklist is to be used by the installer in conjunction with, not instead of, the instructions contained in

this installation manual.

WARNING! Risk of Fire or Explosion! Failure to install appliance according to these instructions can lead to a

re or explosion.

ATTENTION INSTALLER:

Follow this Standard Work Checklist

Appliance Install Information YES IF NO, WHY?

Veried clearances to combustibles requirements are maintained. (Pg. 10-11) ___________________

Veried that the chase is insulated and sealed. (Pg. 11) ___________________

Veried mantel and wall clearance requirements are maintained. (Section 10) ___________________

Veried hearth extension requirements are maintained. (Pg. 12) __________________

Veried appliance is leveled and secured. (Pg. 26) ___________________

Veried required factory-supplied non-combustible board installed. (Pg. 26) ___________________

Venting/Chimney Section 7 (Pg. 27-32)

Veried venting conguration complies to vent diagrams. ___________________

Veried venting installed, locked and sealed/secured in place. ___________________

Veried venting meets clearance to combustible requirements. ___________________

Veried wall/ceiling restops are installed (if applicable). ___________________

Veried attic insulation shield is installed (if applicable). ___________________

Veried Exterior wall/Roof ashing is installed and sealed. ___________________

Veried termination cap is installed and sealed. ___________________

Electrical Section 8 (Pg. 33-34)

Veried unswitched power (110-120 VAC) provided to the appliance. ___________________

Veried wall switch wires are properly installed (if applicable). ___________________

Gas Section 9 (Pg. 35-36)

Veried appliance is using proper fuel type. ___________________

If converted, veried proper fuel conversion kit was used. ___________________

Veried that gas components (ttings, pressure taps, etc) are leak free and replace is

operating under correct pressures. ___________________

Finishing Section 10 (Pg. 37-39)

Veried that nish material does not interfere with install/operation of decorative front. ___________________

Veried combustible materials are not installed in non-combustible areas. ___________________

Veried all clearances meet installation manual requirements. ___________________

Veried mantels/wall projections comply with installation manual requirements. ___________________

Appliance Setup Section 11 (Pg. 40-50)

Veried all packaging and protective materials are removed (inside & outside of appliance). ___________________

Veried Teco-Sil installed and properly fogged with black high temperature paint. ___________________

Veried Lava Rock, Mystic Embers, Glowing Embers, and logs installed correctly. ___________________

Veried xed glass assembly installed and secured. ___________________

Veried that a required decorative door option is installed properly. ___________________

Veried remote control has been programmed and is fully functional. ___________________

Veried proper air shutter setting for installation type and vent conguration. ___________________

Manual bag and all of its contents are removed from inside/under

the appliance and given to party responsible for use and operation. ___________________

2272-982B 7/23

Comments: Further description of the issues, who is responsible (Installer/ Builder/ Other Trades, etc) and corrective

action needed ____________________________________________________________________________________



4Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

B. Glass Specications

This appliance is equipped with 5 mm ceramic glass with

an anti-reective coating. Replace glass only with glass

with identical specications. Please contact your dealer

for replacement glass.

This product is listed to ANSI standards for “Vented Gas

Fireplace Heaters” and applicable sections of “Gas Burn-

ing Heating Appliances for Manufactured Homes and

Recreational Vehicles”, and “Gas Fired Appliances for

Use at High Altitudes”.

A. Appliance Certication D. High Altitude Installations

NOTICE: If the heating value of the gas has been reduced,

these rules do not apply. Check with your local gas utility

or authorities having jurisdiction.

When installing above 2000 feet elevation:

• In the USA: Reduce input rate 4% for each 1000 feet

above 2000 feet.

• In CANADA: Input ratings are certied without a

reduction of input rate for elevations up to 4500 feet

(1370 m) above sea level. Please consult provincial

and/or local authorities having jurisdiction for installa-

tions at elevations above 4500 feet (1370 m).

Check with your local gas utility to determine proper

orice size.

E. Non-Combustible Materials Specication

Material which will not ignite and burn. Such materials are

those consisting entirely of steel, iron, brick, tile, concrete,

slate, glass or plasters, or any combination thereof.

Materials that are reported as passing ASTM E 136,

Standard Test Method for Behavior of Materials in

a Vertical Tube Furnace at 750 ºC shall be considered

non-combustible materials.

F. Combustible Materials Specication

Materials made of or surfaced with wood, compressed pa-

per, plant bers, plastics, or other material that can ignite

and burn, whether ame proofed or not, or plastered or

unplastered shall be considered combustible materials.

G. Electrical Codes

NOTICE: This appliance must be electrically wired

and grounded in accordance with local codes or, in the

absence of local codes, with National Electric Code

ANSI/NFPA 70-latest edition or the Canadian Electric

Code CSA C22.1.

• A 110-120 VAC circuit for this product must be pro-

tected with ground-fault circuit-interrupter protection,

in compliance with the applicable electrical codes,

when it is installed in locations such as in bathrooms

or near sinks.

NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.

This appliance is tested and approved as either supplemen-

tal room heat or as a decorative appliance. It should not be

factored as primary heat in residential heating calculations.

NOTICE: This installation must conform with local codes.

In the absence of local codes you must comply with the

National Fuel Gas Code, ANSI Z223.1-latest edition in

the U.S.A. and the CAN/CGA B149 Installation Codes in

Canada.

1 1 Product Specic and Important Safety Information

MODELS: MARQ42STIN

LABORATORY: Underwriters Laboratories, Inc. (UL)

TYPE: Direct Vent Heater

STANDARD: ANSI-Z21.88-2019 • CSA 2.33-2019

C. BTU Specications

Models

(U.S. or Canada)

Maximum

Input

BTU/h

Minimum

Input

BTU/h

Orice

Size

(DMS)

MARQ42STIN (NG) US

(0-2000 FT) 57,500 43,000 #24

MARQ42STIN

(Propane)

US

(0-2000 FT) 52,000 39,000 #44

H. California

WARNING: This product and the fuels used to

operate this product (liquid propane or natural

gas), and the products of combustion of such fuels, can

expose you to chemicals including benzene, which is

known to the State of California to cause cancer and

reproductive harm. For more information go to: www.

P65Warnings.ca.gov.

5

Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

I. Requirements for the Commonwealth of

Massachusetts

For all side wall horizontally vented gas fueled equipment

installed in every dwelling, building or structure used in

whole or in part for residential purposes, including those

owned or operated by the Commonwealth and where the

side wall exhaust vent termination is less than seven (7)

feet above nished grade in the area of the venting, in-

cluding but not limited to decks and porches, the following

requirements shall be satised:

Installation of Carbon Monoxide Detectors

At the time of installation of the side wall horizontal vented

gas fueled equipment, the installing plumber or gas tter

shall observe that a hard wired carbon monoxide detector

with an alarm and battery back-up is installed on the oor

level where the gas equipment is to be installed. In addi-

tion, the installing plumber or gas tter shall observe that

a battery operated or hard wired carbon monoxide detec-

tor with an alarm is installed on each additional level of

the dwelling, building or structure served by the side wall

horizontal vented gas fueled equipment. It shall be the

responsibility of the property owner to secure the services

of qualied licensed professionals for the installation of

hard wired carbon monoxide detectors.

In the event that the side wall horizontally vented gas fu-

eled equipment is installed in a crawl space or an attic,

the hard wired carbon monoxide detector with alarm and

battery back-up may be installed on the next adjacent

oor level.

In the event that the requirements of this subdivision can

not be met at the time of completion of installation, the

owner shall have a period of thirty (30) days to comply

with the above requirements; provided, however, that dur-

ing said thirty (30) day period, a battery operated carbon

monoxide detector with an alarm shall be installed.

Approved Carbon Monoxide Detectors

Each carbon monoxide detector as required in accor-

dance with the above provisions shall comply with NFPA

720 and be ANSI/UL 2034 listed and IAS certied.

Signage

A metal or plastic identication plate shall be permanent-

ly mounted to the exterior of the building at a minimum

height of eight (8) feet above grade directly in line with the

exhaust vent terminal for the horizontally vented gas fu-

eled heating appliance or equipment. The sign shall read,

in print size no less than one-half (1/2) in. in size, “GAS

VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OB-

STRUCTIONS”.

Inspection

The state or local gas inspector of the side wall horizon-

tally vented gas fueled equipment shall not approve the

installation unless, upon inspection, the inspector ob-

serves carbon monoxide detectors and signage installed

in accordance with the provisions of 248 CMR 5.08(2)(a)1

through 4.

Exemptions

The following equipment is exempt from 248 CMR 5.08(2)

(a)1 through 4:

• The equipment listed in Chapter 10 entitled “Equipment

Not Required To Be Vented” in the most current edition

of NFPA 54 as adopted by the Board; and

• Product Approved side wall horizontally vented gas fu-

eled equipment installed in a room or structure separate

from the dwelling, building or structure used in whole or

in part for residential purposes.

MANUFACTURER REQUIREMENTS

Gas Equipment Venting System Provided

When the manufacturer of Product Approved side wall

horizontally vented gas equipment provides a venting

system design or venting system components with the

equipment, the instructions provided by the manufacturer

for installation of the equipment and the venting system

shall include:

• Detailed instructions for the installation of the venting

system design or the venting system components; and

• A complete parts list for the venting system design or

venting system.

Gas Equipment Venting System NOT Provided

When the manufacturer of a Product Approved side wall

horizontally vented gas fueled equipment does not pro-

vide the parts for venting the ue gases, but identies

“special venting systems”, the following requirements

shall be satised by the manufacturer:

• The referenced “special venting system” instructions

shall be included with the appliance or equipment in-

stallation instructions; and

• The “special venting systems” shall be Product Ap-

proved by the Board, and the instructions for that sys-

tem shall include a parts list and detailed installation

instructions.

A copy of all installation instructions for all Product Ap-

proved side wall horizontally vented gas fueled equip-

ment, all venting instructions, all parts lists for venting

instructions, and/or all venting design instructions shall

remain with the appliance or equipment at the completion

of the installation.

See Gas Connection section for additional Common-

wealth of Massachusetts requirements.

Note: The following requirements reference various

Massachusetts and national codes not contained in this

document.

6Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

2 2 Getting Started

A. Design and Installation Considerations

WARNING! Risk of Fire or Explosion! Read all instruc-

tions before starting the installation.

Direct vent gas appliances are designed to operate with

all combustion air siphoned from outside of the building

and all exhaust gases expelled to the outside. No addi-

tional outside air source is required.

Installation MUST comply with local, regional, state and

national codes and regulations. Consult insurance carrier,

local building inspector, re ofcials or authorities having

jurisdiction over restrictions, installation inspection and

permits.

Before installing, determine the following:

• Where the appliance is to be installed.

• The vent system conguration to be used.

• Gas supply piping requirements.

• Provisions for optional heat management system.

• Electrical wiring requirements.

• Framing and nishing details.

• Whether optional accessories—devices such as a fan,

wall switch, or remote control—are desired.

C. Tools and Supplies Needed

Before beginning the installation be sure that the following

tools and building supplies are available.

Tape measure Framing material

Pliers Hammer

Phillips screwdriver Manometer

Gloves Framing square

Voltmeter Electric drill and bits (1/4 in.)

Plumb line Safety glasses

Level Reciprocating saw

Flat blade screwdriver

Non-corrosive leak check solution

1/2 - 3/4 in. length, #6 or #8 Self-drilling screws

Caulking material (300 ºF minimum continuous exposure

rating)

One 1/4 in. female connection (for optional fan).

Improper installation, adjustment, alteration, service or

maintenance can cause injury or property damage. For

assistance or additional information, consult a qualied

service technician, service agency or your dealer.

Figure 2.1 Good Faith Wall Surface Temperatures Above Appliance

B. Good Faith Wall Surface/TV Guidelines

NOTICE: Temperatures listed above are taken with a

temperature measuring probe as prescribed by the test

standard used for appliance certication. Temperatures

on walls or mantels taken with an infrared thermometer

may yield increased temperatures of up to 30 degrees or

more depending on the thermometer settings and material

characteristics being measured.

MEASUREMENTS FROM

TOP EDGE OF THE OPENING

6 in.

18 in.

24 in.

30 in.

36 in.

TO CEILING

12 in.

APPLIANCE FRONT

FIREPLACE

OPENING

157 °F

129 °F

124 °F

123 °F

116 °F

105 °F

Installation and service of this appliance should be performed by

qualied personnel. Hearth & Home Technologies recommends

HHT Factory Trained or NFI certied professionals.

7

Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

D. Inspect Appliance and Components

• Carefully remove the appliance and components from

the packaging.

• The vent system components and decorative doors and

fronts may be shipped in separate packages.

• If packaged separately, the log set and appliance grate

must be installed.

• Report to your dealer any parts damaged in shipment,

particularly the condition of the glass.

• This product is factory-equipped with an IntelliFire Touch

remote control, which was paired to the appliance at the

factory. This specic remote control needs to remain with

the contents of the manual bag. Do not install batteries

in the remote control until performing the nal appliance

setup and checklist.

• Read all of the instructions before starting the instal-

lation. Follow these instructions carefully during the

installation to ensure maximum safety and benet.

WARNING! Risk of Fire or Explosion! Damaged parts

could impair safe operation. DO NOT install damaged, in-

complete or substitute components. Keep appliance dry.

Hearth & Home Technologies disclaims any responsibility for,

and the warranty will be voided by, the following actions:

• Installation and use of any damaged appliance or vent

system component.

• Modication of the appliance or vent system.

• Installation other than as instructed by Hearth & Home

Technologies.

• Improper positioning of the gas logs or the glass door.

• Installation and/or use of any component part not approved

by Hearth & Home Technologies.

Any such action may cause a re hazard.

WARNING! Risk of Fire, Explosion or Electric Shock!

DO NOT use this appliance if any part has been under

water. Call a qualied service technician to inspect the

appliance and to replace any part of the control system

and/or gas control which has been under water.

8Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

3 3 Framing and Clearances

A. Appliance/Decorative Barrier Front Dimension Diagrams

Dimensions are actual appliance dimensions. Use for reference only. For framing dimensions and clearances refer to Section 5.

Figure 3.1 Appliance Dimensions

Location Inches Millimeters

K15 381

L12-3/4 324

M8 dia. 203

N30 762

O30-3/8 772

P14 356

Q6 dia 152

R22-7/8 875

S8203

Location Inches Millimeters

A58-1/8 1476

B42 1067

C39-7/16 1002

D35-1/8 892

E45-3/8 1153

F60 1524

G 1 25

H46-3/8 1178

I9-1/8 232

J12 305

G

E

P

C

I

J

F

FRONT VIEW

LEFT VIEW

RIGHT VIEW

GAS LINE AND

ELECTRICAL

ACCESS

TOP VIEW

B

A

D

H

L

K

O

M

N

ELECTRICAL

ACCESS

Q

S

R

GAS LINE

ACCESS

Appliance Dimensions Table

9

Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

Figure 3.2 Decorative Barrier Front Dimensions - FSMQ42ST

DECORATIVE BARRIER FRONT DIMENSION DIAGRAM - FSMQ42ST

35-11/16 IN

(907 mm)

37-1/2 IN

(953 mm)

31-1/4 IN

(794 mm)

41-15/16 IN

(1065 mm)

37 IN

(940 mm)

31-1/4 IN

(794 mm)

1-1/8 IN

(29 mm)

Note: See Section 10 for hearth, mantel and nishing detail.

IMPORTANT! This replace requires an installed decorative barrier front to prevent direct contact with the hot

viewing glass. DO NOT operate the replace with the barrier removed.

Decorative barrier front must be ordered at time of replace purchase. If decorative barrier front is not present,

contact dealer.

10 Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

B. Clearances to Combustibles

When selecting a location for the appliance it is important

to consider the required clearances to walls (see Figure

3.3).

WARNING! Risk of Fire or Burns! Provide adequate

clearance around air openings and for service access.

Due to high temperatures, the appliance should be lo-

cated out of trafc and away from furniture and draperies.

NOTICE: Illustrations reect typical installations and are

FOR DESIGN PURPOSES ONLY. Illustrations/diagrams

are not drawn to scale. Actual installation may vary due to

individual design preference.

Figure 3.3 Appliance Locations

NOTICE: This See-Through appliance is NOT designed

or approved for an indoor/outdoor application.

36 IN.

13 IN. TO

FIREPLACE

OPENING

13 IN.

NOTE: 1/2 IN. THICK FACTORY-

SUPPLIED NON-COMBUSTIBLE

BOARD NOT SHOWN ATTACHED TO

APPLIANCE.

11

Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

C. Constructing the Appliance Chase

A chase is a vertical box-like structure built to enclose the

gas appliance and/or its vent system. In cooler climates

the vent should be enclosed inside the chase.

NOTICE: Treatment of ceiling restops and wall shield

restops and construction of the chase may vary with the

type of building. These instructions are not substitutes

for the requirements of local building codes. Therefore,

you MUST check local building codes to determine the

requirements to these steps.

NOTICE: When installing a sprinkler head in a replace

chase, it is recommended to use a sprinkler head with a

sprinkler activation temperature classied as Extra High.

Keep sprinkler head away from vent and chimney.

Chases should be constructed in the manner of all out-

side walls of the home to prevent cold air drafting prob-

lems. The chase should not break the outside building

envelope in any manner.

Walls, ceiling, base plate and cantilever oor of the chase

should be insulated. Vapor and air inltration barriers

should be installed in the chase as per regional codes for

the rest of the home. Additionally, in regions where cold

air inltration may be an issue, the inside surfaces may be

NOTICE: Install appliance on hard metal or wood surfaces

extending full width and depth. DO NOT install directly

on carpeting, vinyl, tile or any combustible material other

than wood.

WARNING! Risk of Fire! Maintain specied air space

clearances to appliance and vent pipe:

• Insulation and other materials must be secured to prevent

accidental contact.

• The chase must be properly blocked to prevent blown

insulation or other combustibles from entering and

making contact with replace or chimney.

• Failure to maintain airspace may cause overheating and

a re.

sheetrocked and taped (or an equivalent method may be

used) to achieve maximum air tightness.

To further prevent drafts, the wall shield and ceiling re-

stops should be caulked with caulk with a minimum of

300 ºF continuous exposure rating to seal gaps. Gas

line holes and other openings should be caulked with

caulk with a minimum of 300 ºF continuous exposure rating

or stuffed with unfaced insulation. If the appliance is being

installed on a cement surface, a layer of plywood may be

placed underneath to prevent conducting cold up into the

room.

Figure 3.4 Clearances to Combustibles

C

B

D

A

F

E=33 IN.

G

H

I

E=43 IN.

MINIMUM FRAMING DIMENSIONS*

A B** C* D E F** G** H I

Rough

Opening

(Vent Pipe)

Rough

Opening

(Height)

Rough

Opening

(Depth)

Rough

Opening

(Width)

Clearance

to ceiling

from opening

Clearance

to ceiling

from top of

appliance

Combustible

Floor

Combustible

Flooring

Sides of

Appliance

Front of

Appliance

Inches 10 46-1/2 30 60-1/4 43 33 0 See Note Below 1 36

Millime-

ters 254 1181 762 1530 1092 838 0 See Note Below 25 914

* Adjust framing dimensions for interior sheathing (such as sheetrock)

** Fireplace may need to be elevated from the oor affecting framing height B, depending on hearth construction. See Section 3.D

for hearth and combustible oor requirements. For installations with vinyl ooring, special clearance requirements apply.

See Section 3.F.

12 Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

D. Hearth Extension

WARNING! Risk of Fire! Hearth extension required to

protect combustible oors in front of appliance.

WARNING! Risk of Fire! DO NOT block ventilation

slots. A minimum 1/4 in. space between the bottom of

hearth refractory and top of eld installed hearth exten-

sion (marble, tile, granite, etc) is required across full width

of replace.

If the appliance is to be placed directly on the oor, the

non-combustible hearth material will be limited to 3/4 in.

thick, including the oor adhesive. If the hearth mate-

rial will exceed 3/4 in. thick, the appliance will need to

be shimmed from the oor appropriately to maintain 1/4

in. minimum space between the oor hearth and hearth

refractory.

The base of the replace may sit on a combustible sur-

face. The area in front of the replace must be protected

by a noncombustible hearth extension, unless the re-

place is raised a minimum of three inches above the com-

bustible oor or hearth. See Figures 3.5, 3.6 and 3.8.

Figure 3.7 Non-Combustible Zone

Figure 3.8 Non-Combustible Hearth Extension Minimum

Dimensions (Fireplace Positioned on Combustible

Surface)

A B

in. 60-1/4 12

mm 1530 305

Figure 3.5 Fireplace Positioned on Combustible Surface

WOOD OR OTHER

COMBUSTIBLE

FLOOR OR PLATFORM

3-3/4 IN.

COMBUSTIBLE MATERIAL

1 IN. MAX THICKNESS

ALLOWED UNDER

FIREPLACE

BOTTOM OF FIREPLACE

3 IN.

MIN.

MINIMUM

1/4 INCH SPACE

REQUIRED

Figure 3.6 Fireplace Raised A Minimum of 3 Inches Above

Combustible Surface

3-1/2 IN.

NO COMBUSTIBLES

IN THIS AREA 1/2 IN. BUILDING MATERIAL

(MAY BE COMBUSTIBLE)

COMBUSTIBLE

FRAMING

4 IN.

FACTORY-SUP-

PLIED 1/2 IN.

NON-COMBUSTI-

BLE BOARD

39 IN.

23 IN.

A

B

WOOD OR OTHER

COMBUSTIBLE FLOOR

OR PLATFORM

MARBLE, GRANITE, TILE OR

OTHER NON-COMBUSTIBLE

HEARTH EXTENSION

3/4 IN. MAX

12 IN.

HEARTH

REFRACTORY

BOTTOM OF

FIREPLACE

NON-COMBUSTIBLE

MATERIAL ON SIDES

(PROFILE VIEW)

MINIMUM

1/4 INCH SPACE

REQUIRED

13

Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

E. Elevated Hearth Systems

Use the table below to identify the hearth system that will be used. The table will also help identify effects on the various

dimensions. Some hearth systems will elevate the appliance off the oor at a given dimension. The dimension noted in the

table below, in the Elevated Appliance Dimension Column, will also have to be added to the following: Extension Wall Hole

referenced in Figure 5.2 (Exterior Wall Hole) and Rough Opening Height (header height) referenced in Figure 3.4. Note:

Finished oor thickness should also be considered when determining installation dimensions.

MODEL DESCRIPTION PART # ELEVATED APPLIANCE DIMENSION

See Note 1

MARQ42STIN

Avalon Cast Mantel AFANTC5244 1/2 in.

Biltmore Cast Mantel AFBETC5244 1/2 in.

Hearst Cast Mantel AFHTTC5244 1/2 in.

Note 1. Add dimensions to Exterior Wall Hole (Figure 5.2) and Rough Opening Height (Figure 3.4).

The above listed Hearth and Home Technologies manufactured hearth systems have been tested and certied for use

with the MARQ42STIN replace. The dimensions of these Hearth and Home Technologies manufactured hearth systems

may differ slightly from the mantel specications listed in Section 10.B. The above listed Hearth and Home Technologies

manufactured hearth systems are not required to meet the mantel specications listed in Section 10.B.

12 IN. MIN.

APPLIANCE WIDTH MIN.

12 IN. MIN.

VINYL

Figure 3.9 Vinyl Flooring Recommendations

Vinyl Flooring

Vinyl ooring is sensitive to heat. To avoid damage to

the vinyl ooring, a 12 inch minimum x 12 inch minimum

hearth is recommended when using vinyl ooring up

to the wall. See Figure 3.9. If no hearth is used, it is

recommended to provide a minimum of 36 inches of

clearance in front of the appliance to the vinyl ooring OR

the bottom of the appliance should be raised a minimum

of 24 inches off of the oor to allow the vinyl ooring to be

installed up to the wall.

F. Floor Protection

Hearth and Home Technologies does not recommend

adhesive based vinyl ooring products due to thermal

expansion during operation. Floating style ooring can be

used, but will reach temperatures up to 110 °F (based on

ambient temperature of 70 °F). Consult the manufacturer’s

ooring specications to ensure compatibility.

NOTICE: Clearances that do not meet the minimum

guidelines could result in damage or buckling to the vinyl

ooring and is done at the installer’s risk.

14 Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

A. Vent Termination Minimum Clearances

Roof Pitch H (Min.) Ft.

Flat to 6/12...........................................................1.0*

Over 6/12 to 7/12 .................................................1.25*

Over 7/12 to 8/12 .................................................1.5*

Over 8/12 to 9/12 .................................................2.0*

Over 9/12 to 10/12 ...............................................2.5*

Over 10/12 to 11/12 .............................................3.25

Over 11/12 to 12/12 .............................................4.0

Over 12/12 to 14/12 .............................................5.0

Over 14/12 to 16/12 .............................................6.0

Over 16/12 to 18/12 .............................................7.0

Over 18/12 to 20/12 .............................................7.5

Over 20/12 to 21/12 .............................................8.0

Figure 4.1 Minimum Height From Roof to Lowest Discharge

Opening

HORIZONTAL

OVERHANG

VERTICAL

WALL

GAS DIRECT VENT

TERMINATION CAP

12

X

ROOF PITCH

IS X/ 12

LOWEST

DISCHARGE

OPENING

2 FT.

MIN.

20 INCHES MIN.

H (MIN.) - MINIMUM HEIGHT FROM ROOF

TO LOWEST DISCHARGE OPENING

4 4 Termination Location and Vent Information

Fire Risk.

Maintain vent clearance to combustibles as

specied.

• DO NOT pack air space with insulation or other

materials.

Failure to keep insulation or other materials away

from vent pipe could cause overheating and re.

WARNING

Figure 4.2 Staggered Termination Caps

Wood or Fuel Oil

Termination Cap

B

*Gas

Termination

Cap

A

*

If two gas terminations are present, they may be level (B = 0 inches)

provided A is a minimum of 6 inches.

A B

6 in. (minimum) up to 20 in.

152 mm/508 mm

18 in. minimum

457 mm

20 in. and over 0 in. minimum

* H minimum may vary depending on regional snowfall.

Refer to local codes.

15

Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

C

JB

D

B

F

B

A

E

V

M

H or i

V

G

X

VH

A

VV

H

Figure 4.3 Minimum Clearances for Termination

X= AIR SUPPLY INLET

V= VENT TERMINAL

= AREA WHERE TERMINAL IS NOT PERMITTED

Electrical

Service

V

K

V K

V

L

C

V

C. Vent Terminal Clearances

U.S.A. CANADA

A Clearance above grade,veranda, porch, deck, balcony or roof. 12 in. (305 mm) 12 in. (305 mm)

B Clearance to window or door that may be opened, or to permanently closed window 12 in. (305 mm) 112 in. (305 mm)

C

Clearance below unventilated soft 18 in. (457 mm) 18 in. (457 mm)

Clearance below ventilated soft 18 in. (457 mm) 18 in. (457 mm)

Clearance below any vinyl softs and electrical service 42 in. (1067 mm) 42 in. (1067 mm)

D Clearance to outside corner 6 in. (152 mm) 6 in. (152 mm)

E Clearance to inside corner 6 in. (152 mm) 6 in. (152 mm)

F Clearance to each side of center line extended above gas meter/regulator assembly

Clearance in accor-

dance with local instal-

lation codes and the

requirements of the gas

supplier.

3 ft (914 mm) within

a height 15 ft (4.5

m) above the meter/

regulator assembly

GClearance to gas service regulator vent outlet 3 ft (914 mm) 3 ft (914 mm)

HClearance to non-mechanical air supply inlet to building or the combustion air inlet to

any other appliance termination (mechanical or non-mechanical) 12 in. (305 mm) 12 in. (305 mm)

I

Clearance to a mechanical (powered) air supply inlet

***(All mechanical air intakes within 10 feet of a horizontal termination cap must be

a minimum of 3 feet below termination.)

3 ft (914 mm)*** 6 ft (1.8 m)

J

On public property: clearance above paved sidewalk or a paved driveway. 7 ft (2.1 m) 7 ft (2.1 m)**

**(A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and

serves both dwellings.)

K

Clearance from sides of electrical service 6 in. (152 mm) 6 in. (152 mm)

Location of the vent termination must not interfere with access to the electrical service.

L

Clearance above electrical service 12 in. (305 mm) 12 in. (305 mm)

Location of the vent termination must not interfere with access to the electrical service.

M

Clearance under veranda, porch, deck, balcony or overhang

*(Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of

two sides beneath the oor.)

24 in. (610 mm)* 24 in. (610 mm)*

Vinyl or composite overhang 42 in. (1067 mm) 42 in. (1067 mm)

U.S.A. Installations: In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.

Canadian Installations: In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.

16 Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

C. Approved Pipe

This appliance is approved for use with Hearth & Home

Technologies DVP venting systems. Refer to Section

12.A for vent component information and dimensions.

DO NOT mix pipe, ttings or joining methods from differ-

ent manufacturers.

The pipe is tested to be run inside an enclosed wall.

There is no requirement for inspection openings at each

joint within the wall.

WARNING! Risk of Fire or Asphyxiation. This appli-

ance requires a separate vent. DO NOT vent to a pipe

serving a separate solid fuel burning appliance.

D. Use of Elbows

WARNING! Risk of Fire. This appliance requires a mini-

mum of 24 inches of vertical venting before attaching any

elbow to the appliance. DO NOT attach elbow directly to

the appliance.

Diagonal runs have both vertical and horizontal vent as-

pects when calculating the effects. Use the rise for the

vertical aspect and the run for the horizontal aspect. See

Figure 4.4.

Two 45º elbows may be used in place of one 90º elbow.

On 45º runs, one foot of diagonal is equal to 8-1/2 in. (216

mm) horizontal run and 8-1/2 in. (216 mm) vertical run. A

length of straight pipe is allowed between two 45º elbows.

See Figure 4.4.

Figure 4.5 shows the vertical and horizontal offsets for

DVP elbows.

Figure 4.4

HORIZONTAL

VERTICAL

RUN

RISE

EFFECTIVE

LENGTH

DVP

Pipe

Effective Length Rise/Run

Inches Millimeters Inches Millimeters

DVP4 4 102 2-3/4 70

DVP6 6 152 4-1/4 108

DVP12 12 305 8-1/2 216

DVP24 24 610 17 432

DVP36 36 914 25-1/2 648

DVP48 48 1219 34 864

DVP6A 3 to 6 76 to 152 2-1/8-4-1/4 54-108

DVP12A 3 to 12 76 to 305 2-1/8-8-1/2 54-216

17

Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

Y

X

Vent Type X

Inches Millimeters

DVP 16-1/4 413

Figure 4.5 Vertical and Horizontal Offset for DVP and SLP Elbows

Vent

Type

X Y

Inches Millimeters Inches Millimeters

DVP 4-1/2 114 17 432

E. Measuring Standards

Vertical and horizontal measurements listed in the vent

diagrams were made using the following standards:

• Pipe measurements are shown using the effective length

of pipe. See Section 12.A Figure 12.1 for information on

effective length of pipe components.

• Horizontal terminations are measured to the outside

mounting surface (ange of termination cap) (see Figure

4.6).

• Vertical terminations are measured to top of last section

of pipe. See Figure 4.7.

• Horizontal pipe installed level with no rise.

Figure 4.6 Measure to Outside Mounting Surface

Figure 4.7. Measure to Top of Last Section of Pipe

MEASURE TO SHADED SURFACE

(OUTSIDE MOUNTING SURFACE)



18 Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

General Rules:

• SUBTRACT 3 ft. from the total H measurement for each

90º elbow installed horizontally.

• SUBTRACT 1-1/2 ft. from the total H measurement for

each 45º elbow installed horizontally.

• A maximum of three 90º elbows (or six 45º elbows) may

be used in any vent conguration. Some elbows may be

installed horizontally. See Figure 4.14.

• Elbows may be placed back to back anywhere in the

system.

• Any 90º elbow may be replaced with two back to back

45º elbows.

• When penetrating a combustible wall, a wall shield

restop must be installed.

• When penetrating a combustible ceiling, a ceiling restop

must be installed.

• This appliance requires a minimum of 24 inches of verti-

cal pipe attached directly to the appliance starting collar

before attaching a 90 degree or 45 degree elbow.

• Horizontal runs of vent do not require vertical rise;

horizontal runs may be level.

• Horizontal termination cap should have a 1/4 inch

downward slant to allow any moisture in cap to be

released. See Figure 4.8.

F. Vent Diagrams

Figure 4.8

1/4 in. max.

(6 mm)



19

Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

Figure 4.10

INSTALLED

HORIZONTALLY

H1

H2

V1

V

1

H1

Figure 4.9

One Elbow

Two Elbows

Fire Risk. Explosion Risk.

Do NOT pack insulation or other combustibles between ceiling restops.

• ALWAYS maintain specied clearances around venting and restop systems.

• Install wall shield and ceiling restops as specied.

Failure to keep insulation or other material away from vent pipe may cause re.

WARNING

V1 Minimum H1 Maximum

2 ft 610 mm 7 in* 178 mm

3 ft 914 mm 2 ft 610 mm

4 ft 1.2 m 4 ft 1.2 m

5 ft 1.5 m 9 ft 2.7 m

6 ft 1.8 m 12 ft 3.7 m

7 ft 2.1 m 14 ft 4.3 m

10 ft 3.0 m 20 ft 6.1 m

20 ft 6.1 m 40 ft 12.2 m

After V1= 6 ft then H1 = 2 x V ft Maximum

V1 + H1 = 60 ft Maximum

*when used with approved termination caps

V1 Minimum H1+ H2

3 ft 914 mm 18 in 457 mm

4 ft 1.2 m 3 ft 914 mm

5 ft 1.5 m 7 ft 2.1 m

6 ft 1.8 m 10 ft 3.0 m

7 ft 2.1 m 12 ft 3.7 m

10 ft 3.0 m 18 ft 5.5 m

20 ft 6.1 m 20 ft 6.1 m

After V1= 6 ft then H1 = 2 x V1 ft Maximum

V1 + H1 + H2= 60 ft Maximum

H1 + H2= 20 ft Maximum

Note: Must have a 24 inches minimum

vertical vent before attaching any

elbow to the appliance.

Note: Flue restrictor is permit-

ted ONLY on 30 ft. minimum

vertical runs with no elbows.

Note: Flue restrictor is permit-

ted ONLY on 30 ft. minimum

vertical runs with no elbows.

Note: Must have a 24 inches minimum

vertical vent before attaching any

elbow to the appliance.

Top Vent - Horizontal Termination



20 Majestic • MARQ42STIN Installation Manual • 2272-980 Rev. L • 7/23

Figure 4.11

Top Vent - Horizontal Termination - (continued)

Three Elbows

H2

H1

V2

V1

V1H1V2 H2

2 ft 610 mm 7 in 178 mm *H2 Max = 2 X V2

3 ft 914 mm 2 ft 610 mm *H2 Max = 2 X V2

4 ft 1.2 m 4 ft 1.2 m *H2 Max = 2 X V2

5 ft 1.5 m 9 ft 2.7 m *H2 Max = 2 X V2

6 ft 1.8 m 12 ft 3.7 m *H2 Max = 2 X V2

7 ft 2.1 m 14 ft 4.3 m *H2 Max = 2 X V2

10 ft 3.0 m 20 ft 6.1 m *H2 Max = 2 X V2

V1 + H1 must be adhered to.

* V2 has no specic restrictions EXCEPT,

Ht max = 2 x Vt and Vtotal + Htotal cannot exceed 60 ft Maximum

Note: Flue restrictor is permit-

ted ONLY on 30 ft. minimum

vertical runs with no elbows.

Note: Must have a 24 inches minimum

vertical vent before attaching any

elbow to the appliance.



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Majestic Marquis II See-Through Direct Vent Gas Fireplace Installation guide

Majestic Marquis II See-Through Direct Vent Gas Fireplace Installation guide

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