Empire Comfort Systems BF28GM-4, BI28GM-4, BI28BMN-4, BI28CMP-4, BF28CMP-4 Installation Instructions Manual

INSTALLATION INSTRUCTIONS

™

EMPIRE

EMPIRE

Comfor t Systems

WARNING

HOT GLASS

DO NOT TOUCH

NEVER

WILL

CAUSE BURNS.

GLASS

UNTIL COOLED.

ALLOW CHILDREN

TO TOUCH GLASS.

WARNING: If not installed, operated and maintained in
accordance with the manufacturer’s instructions, this
product could expose you to substances in fuel or from
fuel combustion which can cause death or serious ill­ness.

Attention: Check local codes for venting requirements.

Installer: Leave this manual with the appliance.
Consumer: Retain this manual for future reference.

POWER-VENT

HIGH-EFFICIENCY

FIREPLACE WITH

BAY WINDOW MANTIS MODELS

BF28(B,C,G)M(N,P)-4

BI28(B,C,G)M(N,P)-4

BP28(B,C,G)M(N,P)-4

FIREPLACE MANTIS MODELS

FF28BM(N,P)-2

FI28BM(N,P)-2

FW28BM(N,P)-2

WARNING: If the information in these instructions are
not followed exactly, a re or explosion may result
causing property damage, personal injury or loss of
life.

— Do not store or use gasoline or other 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. Follow the gas supplier’s
instructions.

• If you cannot reach your gas supplier, call the

— Installation and service must be performed by a

qualied installer, service agency or the gas sup­plier.

re department.

Young children should be carefully supervised when they
are in the same room as the appliance. Toddlers, young
children and others may be susceptible to accidental
contact burns. A physical barrier is recommended if there
are at risk individuals in the house. To restrict access to a

replace or stove, install an adjustable safety gate to keep

toddlers, young children and other at risk individuals out of
the room and away from hot surfaces.

This appliance may be installed in an aftermarket, permanently
located, manufactured home (USA only) or mobile home,
where not prohibited by state or local codes.

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 certied kit is used.

Page 1

TABLE OF CONTENTS

SECTION PAGE

Important Safety Information ............................................................................................................ 3

Safety Information for Users of LP-Gas............................................................................................ 4

Requirements for Massachusetts ..................................................................................................... 5

Introduction ....................................................................................................................................... 6

Specications and Accessories ........................................................................................................ 7

Installation and General Safety Information ..................................................................................... 8

Gas Supply ....................................................................................................................................... 9

Vent Clearances ............................................................................................................................. 10

Venting Requirements .................................................................................................................... 11

Vent Examples for Single Flue ....................................................................................................... 12

Direct Vent and Colinear Vent Examples...................................................................................13-14

Colinear Transition Vent Kit ............................................................................................................ 15

Vent Adaptor Kits ............................................................................................................................ 15

Rough Framing Dimensions ........................................................................................................... 16

Insert Into Masonry Fireplace ......................................................................................................... 17

Bay Window Mantis Clearance to Combustibles ............................................................................ 18

Fireplace Mantis Clearance to Combustibles ................................................................................. 19

Bay Window Mantis Specications ............................................................................................ 20-21

Fireplace Mantis Specications ................................................................................................. 22-23

Gas Connection Installation............................................................................................................ 24

Bay Window Mantis Log Set Installation Instructions ..................................................................... 25

Fireplace Mantis Log Set Installation Instructions .......................................................................... 26

Wiring .............................................................................................................................................27

Start Up Check List......................................................................................................................... 28

Lighting Instructions........................................................................................................................ 29

Start Up and Adjustments ..........................................................................................................30-31

Automatic Humidier Operation...................................................................................................... 31

Optional Controls ............................................................................................................................ 32

Maintenance & Service..............................................................................................................33-34

Master Parts Distributor List ........................................................................................................... 35

How To Order Repair Parts ............................................................................................................35

Bay Window Mantis Parts List ................................................................................................... 36-37

Bay Window Mantis Parts View ................................................................................................. 38-39

Fireplace Mantis Parts List ........................................................................................................40-41

Fireplace Mantis Parts View ........................................................................................................... 42

Warranty Terms .............................................................................................................................. 43

27297-5-0511Page 2

IMPORTANT SAFETY INFORMATION

THIS IS A HEATING APPLIANCE

Safety markings are frequently used in this manual to designate a degree or level of
seriousness and should not be ignored.

WARNING indicates a potentially hazardous situation that if not avoided, could re-

sult in personal injury or death.

CAUTION indicates a potentially hazardous situation that if not avoided, may result

in minor or moderate injury or property damage.

WARNING

This appliance must be installed and repaired by

a qualied service person who is familiar with the

proper installation and operation of the Mantis Pow-

er-Vent High Efciency Fireplace. Installers who are

not familiar with the installation of the Mantis and
have questions, should contact Empire Comfort Sys­tems, Inc. prior to installing the appliance to avoid
creating a hazardous operating condition.

• Due to high temperatures the appliance should be

located out of trafc and away from furniture and

draperies.

• Children and adults should be alerted to the haz-

ards of high surface temperatures and should stay
away to avoid burns or clothing ignition.

• Young children should be carefully supervised

when they are in the same room as the appliance.
Toddlers, young children and others may be sus­ceptible to accidental contact burns. A physical
barrier is recommended if there are at risk indi­viduals in the house. To restrict access to a re­place or stove, install an adjustable safety gate to
keep away toddlers, young children and other at
risk individuals out of the room and away from hot
surfaces.

• Clothing or other ammable material should not

be placed on or near the appliance.

• Any safety screen or guard removed for servicing an

appliance, must be replaced prior to operating the
appliance.

• Keep burner and control compartment clean.

• For manufactured home (USA only) or mobile home

or residential installation convertible for use with
natural gas and liqueed petroleum gases when
provision is made for the simple conversion from
one gas to the other.

WARNING

Installation and repair should be done by a
QUALIFIED SERVICE PERSON. The appliance should
be inspected before use and at least annually by a

qualied service person. More frequent cleaning may

be required due to excessive lint from carpeting,
bedding materials, etc. It is imperative that
control compartments, burners and circulating air
passageways of the appliance be kept clean.

• DO NOT put anything around the heater that will
obstruct the ow of combustion and ventilation

air.

• DO keep the appliance area clear and free from
combustible material, gasoline and other ammable

vapors and liquids.

• Do examine venting system periodically and re­place damaged parts.

• Do make a periodic visual check of burner. Clean

and replace damaged parts.

• DO NOT use this heater if any part has been under
water. Immediately call a qualied service techni-

cian to inspect the heater and to replace any part
of the control system and any gas control which
has been under water.

• DO NOT operate this appliance without the front

panel installed.

Note to the Installer

1. The installer must leave instruction manual with owner
after installation.

2. The installer must have the owner ll out and mail
registration card supplied with the heater.

3. The installer should show the owner how to start and
operate heater and thermostat.

4. The installer must locate unit near a grounded wall

receptacle for 115VAC power and must provide gas

supply and vent the unit properly for safe operation.

27297-5-0511 Page 3

SAFETY INFORMATION FOR USERS OF LP-GAS

LP-Gas (Propane) is a ammable gas which can cause res

and explosions. In its natural state, propane is odorless and
colorless. You may not know all the following safety precautions
which can protect both you and your family from an accident.
Read them carefully now, then review them point by point with the

members of your household. Someday, there may not be a
minute to lose, everyone’s safety will depend on knowing ex­actly what to do. If, after reading the following information, you
feel you still need more information, please contact your gas
supplier.

LP-GAS WARNING ODOR

If a gas leak happens, you should be able to smell the gas because of the odorant put in the LP-Gas.

That’s your signal to go into immediate action!

• Do not operate electric switches, light matches, use your

phone. Do not do anything that could ignite the gas.

• Get everyone out of the building, vehicle, trailer, or area.
Do that IMMEDIATELY.

• Close all gas tank or cylinder supply valves.

• LP-Gas is heavier than air and may settle in low areas

such as basements. When you have reason to suspect
a gas leak, keep out of basements and other low areas.

Stay out until reghters declare them to be safe.

• Use your neighbor’s phone and call a trained LP-Gas
service person and the re department. Even though

you may not continue to smell gas, do not turn on the
gas again. Do not re-enter the building, vehicle, trailer,
or area.

• Finally, let the service man and reghters check for es­caped gas. Have them air out the area before you return.

Properly trained LP-Gas service people should repair the
leak, then check and relight the gas appliance for you.

NO ODOR DETECTED - ODOR FADE

Some people cannot smell well. Some people cannot smell

the odor of the chemical put into the gas. You must nd out if

you can smell the odorant in propane. Smoking can decrease
your ability to smell. Being around an odor for a time can affect
your sensitivity or ability to detect that odor. Sometimes other
odors in the area mask the gas odor. People may not smell
the gas odor or their minds are on something else. Thinking
about smelling a gas odor can make it easier to smell.

The odorant in LP-gas is colorless, and it can fade under
some circumstances. For example, if there is an underground

leak, the movement of the gas through soil can lter the odor­ant. Odorants in LP-Gas also are subject to oxidation. This

fading can occur if there is rust inside the storage tank or in
iron gas pipes.

The odorant in escaped gas can adsorb or absorb onto or
into walls, masonry and other materials and fabrics in a room.
That will take some of the odorant out of the gas, reducing its
odor intensity.

LP-Gas may stratify in a closed area, and the odor intensity
could vary at different levels. Since it is heavier than air, there

may be more odor at lower levels. Always be sensitive to the

slightest gas odor. If you detect any odor, treat it as a serious leak.
Immediately go into action as instructed earlier.

• Learn to recognize the odor of LP-gas. Your local LP-Gas

Dealer can give you a “Scratch and Sniff” pamphlet. Use
it to nd out what the propane odor smells like. If you sus­pect that your LP-Gas has a weak or abnormal odor, call
your LP-Gas Dealer.

• If you are not qualied, do not light pilot lights, perform
service, or make adjustments to appliances on the LP-Gas
system. If you are qualied, consciously think about the

odor of LP-Gas prior to and while lighting pilot lights or

performing service or making adjustments.

• Sometimes a basement or a closed-up house has a musty

smell that can cover up the LP-Gas odor. Do not try to

light pilot lights, perform service, or make adjustments in

an area where the conditions are such that you may not
detect the odor if there has been a leak of LP-Gas.

• Odor fade, due to oxidation by rust or adsorption on walls

of new cylinders and tanks, is possible. Therefore, people
should be particularly alert and careful when new tanks or

cylinders are placed in service. Odor fade can occur in new
tanks, or reinstalled old tanks, if they are lled and allowed
to set too long before relling. Cylinders and tanks which

have been out of service for a time may develop internal

SOME POINTS TO REMEMBER

rust which will cause odor fade. If such conditions are
suspected to exist, a periodic sniff test of the gas is
advisable. If you have any question about the gas odor,

call your LP-gas dealer. A periodic sniff test of the LP-gas

is a good safety measure under any condition.

• If, at any time, you do not smell the LP-Gas odorant and

you think you should, assume you have a leak. Then take
the same immediate action recommended above for the

occasion when you do detect the odorized LP-Gas.

• If you experience a complete “gas out,” (the container

is under no vapor pressure), turn the tank valve off
immediately. If the container valve is left on, the container
may draw in some air through openings such as pilot light
orices. If this occurs, some new internal rusting could
occur. If the valve is left open, then treat the container as

a new tank. Always be sure your container is under vapor

pressure by turning it off at the container before it goes
completely empty or having it relled before it is
completely empty.

27297-5-0511Page 4

REQUIREMENTS FOR 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, including but not

limited to decks and porches, the following requirements

shall be satised:

1. 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 addition, the installing plumber

or gastter shall observe that a battery operated or

hard wired carbon monoxide detector 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

a. In the event that the side wall horizontally vented

gas fueled 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.

b. 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 during said thirty (30)
day period, a battery operated carbon monoxide
detector with an alarm shall be installed.

2. APPROVED CARBON MONOXIDE DETECTORS. Each

carbon monoxide detector as required in accordance

with the above provisions shall comply with NFPA 720
and be ANSI/UL 2034 listed and IAS certied.

3. SIGNAGE. A metal or plastic identication plate shall be

permanently 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 fueled heating appliance or equipment. The

sign shall read, in print size no less than one-half (1/2)
inch in size, “GAS VENT DIRECTLY BELOW. KEEP

CLEAR OF ALL OBSTRUCTIONS”.

4. INSPECTION. The state or local gas inspector of the
side wall horizontally vented gas fueled equipment shall

not approve the installation unless, upon inspection,
the inspector observes carbon monoxide detectors and
signage installed in accordance with the provisions of
248 CMR 5.08(2)(a) 1 through 4.

(b) EXEMPTIONS: The following equipment is exempt

from 248 CMR 5.08(2)(a)1 through 4:

1. 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

2. Product Approved side wall horizontally vented

gas fueled equipment installed in a room or
structure separate from the dwelling, building or
structure used in whole or in part for residential
purposes.

(d) MANUFACTURER REQUIREMENTS - GAS

EQUIPMENT VENTING SYSTEM NOT PROVIDED.
When the manufacturer of a Product Approved
side wall horizontally vented gas fueled equipment
does not provide the parts for venting the ue
gases, but identies “special venting systems”,
the following requirements shall be satised by the
manufacturer:

1. The referenced “special venting system”

instructions shall be included with the appliance
or equipment installation instructions; and

2. The “special venting systems” shall be Product

Approved by the Board, and the instructions

for that system shall include a parts list and
detailed installation instruction.

(e) A copy of all installation instructions for all Product

Approved side wall horizontally vented gas fueled

equipment, 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.

27297-5-0511 Page 5

Sate of Massachusetts: The installation must

be made by a licensed plumber or gas tter in the

Commonwealth of Massachusetts.

INTRODUCTION

WARNING

The safety information listed below must be followed
during the installation, service, and operation of this
product. Failure to following the safety recommenda­tions could result in possible damage to the equip­ment, serious personal injury, or death.

Additional code information listed below is for reference
purposes only and does not necessarily have
jurisdiction over local or state codes. Always con­sult with local authorities before installing any gas
appliance.

Combustion and Ventilation Air

U.S.: National Fuel Gas Code NFPA 54/ANSI Z223.1(NFGC),
Air for Combustion and Ventilation.

Electrical Connections

U.S.: National Electrical Code (NEC) ANSI/NFPA 70

Gas Piping and Gas Pipe Pressure Testing

U.S.: NFGC and National Plumbing Codes

General Installations

U.S.: Current edition of the NFGC and NFPA 90B. For copies
contact the National Fire Protection Association Inc.,
Batterymarch Park, Quincy, MA 02269 or American Gas
Association, 400 N. Capitol, N.W., Washington DC 20001
or www.NFPA.org.

Safety

U.S.: NFGC NFPA 5/ANSI Z223.1

27297-5-0511Page 6

SPECIFICATIONS & ACCESSORIES

Fireplace Mantis Models F(F,I,W)28BM(N,P)

Input BTU/HR (KW/H) 15,000 Rear - 13,000 Front

Height 24-9/16”

Width 28”

Depth 17-3/16”

Gas Inlet (Pipe) 3/8” Flair

Electrical - The unit comes equipped with a 5 foot (1.5 m)

3 pronged cord, for connection to an approved

115 VAC, 60 Hz, 5A (maximum) wall receptacle.

Vent Pipe: - 1-1/2 inch diameter schedule 40 PVC pipe, 40

feet maximum equivalent length.

ACCESSORIES

Common

Part Number Description

FRBTC Battery Operated Remote with Thermostat

FRBTP Battery Operated Remote with Programmable Thermostat

PVCA Colinear Adapter

PVCT Colinear Transition Kit

PVVK-CFA Flex Vent Kit

PVVK-SH Single Flue Horizontal Vent Kit

PVVK-SV Single Flue Vertical Vent Kit

PVVTC Vertical Termination Cap - 1-1/2”

T24V 24 Volt Thermostat

TMV2 Two-Stage Thermostats

TDV1 Wall Thermostat - Wireless Remote

PVVK24H Coaxial Horizontal Direct Vent Kit (24”)

PVVK48H Coaxial Horizontal Direct Vent Kit (48”)

TRW Wall Thermostat - Wireless Remote

Bay Window Mantis

CIFPB-1C Corner Floor Pad Kit

CIPFP-1 Floor Pad Kit

PV-2H Slim Top Cover Kit

PV-4H Short Top Cover Kit

PVE-1 Metal Surround Kit, 35”

PVE-2 Metal Surround Kit, 38”

PVPK Pedestal Kit

PVSH Rear Shroud

Fireplace Mantis

FWK28(BL,CM,HP,SS) In-Wall Surround Kit, Picture Frame

FGK28(BL,SS) In-Wall Surround Kit, Louverless

FIK28(BL,CM,HP,SS) Insert Package

FFK28(BL,CM,HP,SS) Fireplace Mantel Surround Kit

Bay Window Mantis Models B(F,I,P)28(B,C,G)M(N,P)

Input BTU/HR (KW/H) 19,000 Rear - 9,000 Front

Height 25-1/4”

Width 28”

Depth 17-5/8”

Gas Inlet (Pipe) 3/8” Flair

Electrical - The unit comes equipped with a 5 foot (1.5 m) 3

pronged cord, for connection to an approved

115 VAC, 60 Hz , 5A (maximum) wall receptacle.

Vent Pipe: - 1-1/2 inch diameter schedule 40 PVC pipe, 40

feet maximum equivalent length.

27297-5-0511 Page 7

INSTALLATION AND GENERAL SAFETY INFORMATION

General Information

This series is designed certied in accordance with American
National Standard/CSA Standard Z21.88 as a Gas Fireplace
Heater to be installed according to these instructions.

Any alteration of the original design, installed other than
as shown in these instructions will be the responsibility
of the person and company making the changes, and will
void the warranty. This product may not be used with any
type of gas other than what is shown on the rating plate.

Important

All Correspondence should refer to complete Model Number,
Serial Number and type of gas.

Installation

Installation, replacement, gas piping, gas utilization equipment

or accessories, and the repair and service of this equipment

must be performed by a qualied agency. The term “qualied
agency” means any individual, rm, corporation or company which

either in person or through a representative is engaged in and is
responsible for (a) the installation or replacement of gas piping or
(b) the connection, installation, repair or servicing of equipment,
who is experienced in such work, familiar with all precautions
required and has complied with all the requirements of the

authority having jurisdiction.

• This installation must conform with local codes, or in the

absence of local codes, the National Fuel Gas Code,

NFPA 54/ANSI Z223.1.

• This appliance, when installed, must be electrically ground-

ed in accordance with local codes or. In the absence of lo-

cal codes, with the National Electrical Code, ANSI/NFPA

70.

• Provide adequate clearances around the heater for servic-

ing and ensure there are no obstructions to the combus­tion air intake situated at the back of the heater. Refer to
Pages 16 to 19.

• The Mantis Power-Vent High-Efciency Fireplace must
be installed on a at, solid continuous surface (i.e. wood,

metal, concrete). Rough or uneven surfaces can cause vi­bration or humming in the heater.

• This appliance does need to be installed in such a way

where the heater can be removed for servicing the heat

exchanger and the ue that are located in the rear section

of the heater.

• This appliance is equipped with a three-prong
[grounding] plug for your protection against shock
hazard and should be plugged directly into a
properly grounded three-prong receptacle. Do not cut
or remove the grounding prong from this plug. For

an ungrounded receptacle, purchase an adapter with two
prongs and a wire for grounding.

Note: Under no circumstances should the appliance be

installed under conditions that would not allow for
easy removal of the appliance to carry out routine
inspection and service to the appliance.

Note: Where a mantel surround is being used on

insert installations and zero clearance replace
installations, the combustion air intake slot located in
the top mantel surround must not be obstructed. This
will allow combustion air to enter through the slot to the
combustion air inlet located at the back of the heater.

Note: During initial ring of this unit, residual oil from the

heat exchanger may bake off and smoke may occur.
Provide adequate ventilation to the area where the
heater is installed to prevent triggering of smoke
alarms. Refer to page 31 for more detail.

A manufactured home (USA only) or mobile home OEM
installation must conform with the Manufactured Home

Construction and Safety Standard, Title 24 CFR, Part 3280,
or when such a standard is not applicable, the Standard for

Manufactured Home Installations, ANSI/NCSBCS Z225.1, or

Standard for Gas Equipped Recreational Vehicles and Mobile

Housing, CSA Z240.0.

Installation on Combustible Flooring

If this appliance is to be installed directly on carpeting, tile,
or other combustible material, other than wood ooring, the
appliance shall be installed on a metal or wood panel extend­ing the full width and depth of the appliance.

The base referred to above does not mean the re-proof

base as used on wood stoves. The protection is primarily for
rugs that may be extremely thick and light-color tile that can
discolor.

Installation in Residential Garages

Gas utilization equipment in residential garages shall be
installed so that all burners and burner ignition devices are

located not less than 18 inches (457 mm) above the oor. The
equipment shall be located, or protected, so it is not subject to

physical damage by vehicles.

Operation of Heater During Construction

The heater shall not be used during construction.

WARNING

Do not operate appliance with the glass front re­moved, or if it is cracked or broken. Replacement of
the glass shall be performed by a licensed or quali-

ed service person

27297-5-0511Page 8

GAS SUPPLY

All gas piping must be installed in compliance with local
codes and utility regulations. In the absence of local codes

the installation must comply with NFCG NFPA 54/ANSI
Z223.1.

Note: Never use plastic pipe. Check to conrm whether your
local codes allow copper tubing or galvanized.

Where permittted, exible gas connectors must be certied
to the following standards:
— ANS Z21.24 Appliance Connectors of Corrugated Metal

Tubing and Fittings

— ANS Z21.45 Assembled Flexible Appliance Connectors

of Other Than All-Metal Construction

The above connectors may be used if acceptable by the

uthority having jurisdiction. The state of Massachusetts
requires that a exible appliance connector cannot exceed

three feet in length.

A drip leg should be installed in the vertical gas supply pipe

run to the unit.

Manual Shut-off Valve

Some local regulations require the installation of a
manual shut-off valve and ground joint union external to the
appliance. The shutoff should be accessible for service
and/or emergency use. Consult the local utility or gas
supplier for additional requirements regarding the
placement of the manual shut off valve. Compounds used

on threaded joints of gas piping shall be resistant to the
action of liqueed petroleum gases.

Leak Testing

WARNING - FIRE OR EXPLOSION HAZARD

Important Note:
When pressure testing the gas supply lines at pressures
greater than ½ psig (14 in. w.c.), the gas supply pip­ing system must be disconnected from the appliance
to prevent damage to the gas control valve. If the test
pressure is less than or equal to ½ psig (14 in. w.c.),
close the manual shut-off valve.

Pressure Testing of the Gas Supply System

1. To check the inlet pressure to the gas valve, a 1/8 inch

N.P.T. plugged tapping, accessible for test gauge
connection, must be placed immediately upstream of
the gas supply connection to the appliance.

2. The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in

excess of 1/2 psig.

3. The appliance must be isolated from the gas supply
piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than

1/2 psig.

Recommended Gas Pipe Diameter

Pipe Length Schedule 40 Pipe

Inside Diameter

In Inches

Nat. L.P. Nat. L.P.

0-10 feet 1/2 3/8 1/2 3/8

10-40 feet 1/2 1/2 5/8 1/2

40-100 feet 1/2 1/2 3/4 1/2

100-150 feet 3/4 1/2 7/8 3/4

Tubing, Type L

Outside Diameter

In Inches

Never test for leaks with an open ame. Check all

connections using a commercially available soap
solution. A re or explosion may result causing
property damage, personal injury or loss of life.
Failure to follow the safety warnings exactly could
result in serious injury, death or property damage.

After gas piping to the heater is complete, all connections

must be tested for gas leaks. This includes pipe connec­tions at the main gas valve, emergency shutoff valve and

exible gas connectors (if applicable). The soap and water
solution can be applied on each joint or union using a small

paintbrush. If any bubbling is observed, the connection is
not sealed adequately and must be retightened. Repeat
the tightening and soap check process until the bubbling
ceases.

27297-5-0511 Page 9

VENT CLEARANCES

US Installation

A = Clearance above any grade,

B = Clearance to window or door

C = Clearance to permanently

D = Vertical clearance to venti-

E = Clearance to unventilated

F = Clearance of outside corner *

G = Clearance of inside corner *

H = Clearance to each side of

I = Clearance to service regulator

1

veranda, porch or balcony

that may be opened

closed windows

lated soft located above the
terminal within a horizontal

distance of 2 ft (61 mm) from
the center line of the terminal

soft

center line extended above

meter/regulator assembly

vent outlet

12 in (30 cm)

6 in (15 cm) for appliances ≤
10,000 Btu/h (3 kW), 9 in (23

cm) for appliances > 10,000

Btu/h (3 kW) and ≤ 50,000
Btu/h (15 kW), 12 in (30 cm)
for appliances > 50,000 Btu/h

(15 kW)

Figure 1

J = Clearance to non-mechanical

air supply inlet to building or
the combustion air inlet to any
other appliance

K = Clearance to a mechanical air

supply inlet

*

*

*

*

*

L = Clearance above paved

sidewalk or paved driveway
located on public property †

M = Clearance under veranda,

porch deck, or balcony ¥

1

In accordance with the current ANSI Z223.1/NFPA 54, National

Fuel Gas Code

† A vent shall not terminate directly above a sidewalk or paved

driveway that is located between two single family dwellings
and serves both dwellings.

¥ Permitted only if veranda, porch, deck or balcony is fully open

on a minimum of two sides beneath the oor.

* For clearances not specied in ANSI Z223.1/NFPA 54 or CSA

B149.1, refer to local codes.

6 in (15 cm) for appliances ≤
10,000 Btu/h (3 kW), 9 in (23

cm) for appliances > 10,000

Btu/h (3 kW) and ≤ 50,000
Btu/h (15 kW), 12 in (30 cm)
for appliances > 50,000 Btu/h

(15 kW)

3 ft (91 cm) above if within 10

ft (3 m) horizontally

*

*

27297-5-0511Page 10

VENTING REQUIREMENTS

12” MIN TO GRADE.

(RECOMMENDED 12” MIN

TO MAX EXPECTEDSNOWLEVEL)

TYPICAL BOTH PIPES

6” Min

3” Min

24” Max

WARNING

This appliance must not be vented with any other appli­ances, even if that appliance is of the condensing type.
Common venting can result in severe corrosion of other
appliances or their venting and can allow combustion
gases to escape through such appliances or vents. Do not

vent the heater into a replace chimney or building chase.

WARNING

Upon completion of the installation, carefully inspect the

entire ue system to assure it is properly sealed. DO NOT use
any vent material other than what is specied in this manual.
Leaks in the ue system can result in serious personal injury
or death due to exposure of ue products, including carbon

monoxide.

The Mantis is classied as a “Category IV” appliance, which
requires special venting materials and installation procedures.
Installations can be Conventional (1-pipe) and Direct Vent

(2-pipe). Venting must be completed with 1-1/2 inch diameter pipe.

In selecting a location for installation, it is necessary to provide
adequate clearances for servicing and proper installation.

All vent and combustion air pipes and ttings must be Schedule
40 PVC and meet the ANSI/ASTM Standard D1785. Cement must
conform to ASTM Standard D2564.

Maximum Vent Length is 40 feet. The minimum vent length
is 12 inches. Each 90° elbow used in the vent system will be

the equivalent to 3 feet, and each 45° elbow is equivalent to

1.5 feet, which should be added to the overall vent length. See

Table 1.

The minimum distance from the center of the vent cap to the near-

est outside corner or obstruction is 12 inches. The ue outlet must
be at least 12 inches from any opening which ue gases could en­ter the building. See Figure 1. The ue outlet must be a minimum

distance of 6 feet from any pressure regulator.

The bottom of the exhaust vent terminal and the air intake shall
be located at least 12 inches above grade and must be vented
outside. It is recommended the exhaust and intake be located 12
inches from the maximum snow level.

The ue pipe must be supported on horizontal vent runs. The ue
pipe needs to be supported every 3 feet. All horizontal runs of the
ue must be pitched ¼ inch per foot either towards the heater or

away from the heater. The minimum vent length protruding from
outside the wall is 6 inches. For two-pipe installation, a minimum
distance of 3 inches and maximum distance of 24 inches must be
maintained between the pipes. See Figure 2.

Single ue (one-pipe) installations must have a minimum clear­ance of 2 inches on the back of the heater for combustion air.

Vent Freezing Protection

When the vent pipe is exposed to temperatures below freezing

(i.e. when it passes through unheated spaces, chimneys, etc.)

the pipe must be insulated with 1/2 inch thick sponge rubber
insulation, Armaex-type insulation or equivalent. Insulating pipe

is important to avoid condensate icing.

For proper operation, the ue exhaust must extend 6 inches from

the outside wall before applying an elbow.

Note: If vent length requirements are not followed, the unit
will not operate properly.

It is recommended that the Mantis Power-Vent High-Efciency

Fireplace be located on an exterior wall for ease of venting. The

ue exhaust pipe and inlet air pipe should be located between wall
studs. The required opening for venting is 1-7/8 inch in diameter
for 1-1/2 inch PVC pipe.

Figure 2

Table 1 - Equivalent Vent Length Example

EVL = Equivalent Vent Length

EVL must be greater than or equal to 1’ and less than or equal to 40’

EVL = 90º elbow + 4’ straight pipe + 45º elbow + 2’ straight pipe + 45º elbow + 3’ straight pipe = 15’

EVL = 3’

(90º elbow)

+ 4’

(straight pipe)

+ 1.5’

(45º elbow)

+ 2’

(straight pipe)

+ 1.5’

(45º elbow)

+ 3’

(straight pipe)

= 15’

27297-5-0511 Page 11

VENT EXAMPLES FOR SINGLE FLUE

2’

5’

27’

VENT TERMINAL
90° ELBOW
(NOT COUNTED)

90° ELBOW

3’

FIRST 90° ELBOW
DOES NOT GET COUNTED
WHEN WITHIN 6”
OFF BACK OF HEATER

Figure 3 displays a single ue (one-pipe) installation. Be­cause the distance from the heater to the rst elbow is more
than 6 inches, the rst 90° elbow does need to be consid-

ered into the total vent length. The equivalent length of the
second 90° elbow also needs to be added to the total length,

but the third elbow does not since it is the ue terminal. The

H = 5’ + 2’ = 7’
V = 27’
(2) - 90° = 6’
Total = 40’

total horizontal vent length of the ue system is 7 feet, and

the total vertical length is 27 feet. The two 90° elbows are
equivalent to 6 feet, bringing the total to 40 feet.
Figure 4 is an example of how the heater can be vented if

the ue outlet is below the level of the oor.

Figure 4

Minimum Exterior Grade Dimension - Single Flue, Hori-

zontal Venting Below Floor

Figure 3

Single Flue - Horizontal Tall Vent Run

Example Calculation Max Vent Run 40 feet

27297-5-0511Page 12

DIRECT VENT AND COLINEAR VENT EXAMPLES

12” MIN TO GRADE

(RECOMMENDED 12” MIN.

TO MAX EXPECT SNOW LEVEL)

6” MIN.

9” MIN.

3” MIN.

2” MIN.

3” MIN.

12” MIN. TO ROOF
(RECOMMENDED 12”

MIN TO MAX. EXPECTED

SNOW LEVEL)

PTRAP

90° ELBOW

3’

COLINEAR ADAPTER

5’

10’

FIRST 90° ELBOW
DOES NOT GET COUNTED
WHEN WITHIN 6” FROM THE
BACK OF HEATER

H=5’+6’=11’
V=10’ +10’ =20’
(3) 90°=9’

=40’TOTA L

6’

90° ELBOW

3’

10’

6” MIN.

12” MAX.

SUPPORT

OUTSIDE

WALL

1/2”
ARMAFLEX
INSULATION OR
EQUIVALENT
(IF REQUIRED)

12” ABOVE

MAXIMUM

EXPECTED

SNOW LEVEL

Figure 5 displays a two-pipe installation. Because the

distance from the heater to the rst elbow is more than
6 inches, the rst 90° elbow does need to be considered

into the total vent length. The equivalent length of the
second 90° elbow also needs to be added to the total length.
The third elbow also needs to be included. The equivalent
length of the PTrap does not need to be added since it is

the termination. The total horizontal vent length of the ue

system is 11 feet, and the total vertical length is 20 feet. The
three 90° elbows are equivalent to 9 feet, bringing the total
to 40 feet.

Note: Exhaust must be a
minimum of 3 inches above
air intake inlet.

Note: The exhaust must be a minimum of 3 inches above
the inlet air pipe. The ue must be at least 12 inches from

the roof line, and it is recommended to be at least 12 inches
above the maximum expected snow level as indicated in
Figures 5 through 8.

Calculation example of vent run maximum 40 feet

Figure 5

27297-5-0511 Page 13

Figure 6

Figure 7

DIRECT VENT AND COLINEAR VENT EXAMPLES

COLINEAR ADAPTER

12” MINIMUM TO GRADE

RECOMMENDED 12” MINIMUM TO

MAXIMUM EXPECTED SNOW LEVEL

REAR SHROUD

SINGLE FLUE ADAPTER

H

FLASHING

REQUIRED

H

REQUIRED HEIGHT IS 12”

MINIMUM. IT IS RECOMMENDED

TO BE 12” ABOVE THE

EXPECTED SNOW LEVEL.

AIR INTAKE

PTRAP,290 EBLOWS

(SUPPLIED BY INSTALLER).

PTRAP TO FACE AWAY FROM ROOF.

o

3” -24”

PVC CEMENT

Figure 8

In direct vent applications, a minimum distance between
the two pipes is 3 inches and the maximum distance is 24

inches. The ue exhaust and air inlet can be terminated with

either a PTrap or two 90° elbows as shown in Figures 9,12
and 13. The Vertical Termination Cap (Part number PVVTC)
can also be used.

Figure 10 - PVVTC Vertical Termination Cap

Figure 11

Vertical termination cap used with 1-1/2 inch

PVC pipe installation.

Cap also used with colinear transition plate.

Figure 9

27297-5-0511Page 14

COLINEAR TRANSITION VENT KIT

AIR INTAKE
PTRAP OR290° ELBOWS
SUPPLIED BY INSTALLER

TRANSITION PLATE

PVC CEMENT

PVC CEMENT

OUTDOOR SEALER REQUIRED

OPTIONAL

TERMINATION CAP

3” MIN.

REQUIRED HEIGHT IS 12” MINIMUM.
IT IS RECOMMENDED TO BE 12” ABOVE
THE MAXIMUM EXPECTED SNOW LEVEL.

AIR INTAKE
PTRAP OR290° ELBOWS
SUPPLIED BY INSTALLER

TRANSITION PLATE

PVC CEMENT

PVC CEMENT

OUTDOOR SEALER REQUIRED

3” MIN.

EXHAUST
PTRAP OR 2 90° ELBOWS
SUPPLIED BY INSTALLER

REQUIRED HEIGHT IS 12” MINIMUM.
IT IS RECOMMENDED TO BE 12” ABOVE
THE MAXIMUM EXPECTED SNOW LEVEL.

FLUE ADAPTOR

PLASTIC GASKET

INSTALL FOAM GASKET

THREADED CONNECTOR

The Colinear Transition Kit (Part number PVCT) is available

and can be used to secure the ue and inlet pipes from the

Mantis. When venting vertically, the exhaust pipe termina­tion must be a minimum of 3 inches above the air inlet.

Figure 12

The ue can be terminated with a PTrap or two 90° elbows.
The Vertical Termination Cap (Part number PVVTC) can
also be used to terminate the ue pipe when using the Co­linear Transition Kit.

Figure 13

Installation of the Colinear Transition Plate

1. Attach the plate to chimney chase, at roof, or outside

wall with four (4) screws. Use outdoor sealant to seal
the transition plate to the surface.

2. Both inlet air pipe and ue exhaust pipe must be

12 inches from the roof line, and it is recommended to

be 12 inches above the maximum snow line. Also refer

to local codes. See Figures 12 and 13.

VENT ADAPTOR KITS

The Vent Adaptor Kits provide a transition from the appli­ance to the ue and inlet pipes. Colinear Adaptor (part num­ber PVCA) provides a transition for the inlet air. When using

3. Attach the ue and inlet air pipes to the transition plate.

Use the appropriate primer and cement to permanently

bond the joints and the pipes to the transition plate.

the ue adapter, use the appropriate primer and cement to
permanently bond the joints and the pipes. The inlet air pipe

does not need to be cemented.

Figure 14

27297-5-0511 Page 15

Figure 15

ROUGH FRAMING DIMENSIONS

A

B

C

ACCESS

PANELS

ACCESS
PANELS

Figure 16

Single Vent

A 8-1/2” minimum* 8-1/2” minimum* 7-3/4” minimum 12-3/4” minimum

Bay Window Mantis with

B

PV-4H

Short Top Cover Kit

C

* When using a 90° elbow on the ue exhaust.

Single Vent

A 13-1/2” minimum* 13-1/2” minimum* 12-5/8” minimum 17-7/8” minimum

Bay Window Mantis with

B

PV-2H

Slim Top Cover Kit

C

* When using a 90° elbow on the ue exhaust.

Figure 17

Direct Vent and

Colinear Vent

Coaxial Vent Flex Vent

25-1/4” minimum

27” maximum when using PVE-1 or PVE-2 Surround Kits

28-1/2” minimum, 33” minimum recommended for service

34-1/2” maximum when using PVE-1 Surround Kit

37” maximum when using PVE-2 Surround Kit

Direct Vent and

Colinear Vent

Coaxial Vent Flex Vent

25-1/4” minimum

27” maximum when using PVE-1 or PVE-2 Surround Kits

28-1/2” minimum, 33” minimum recommended for service

34-1/2” maximum when using PVE-1 Surround Kit

37” maximum when using PVE-2 Surround Kit

A 19-1/2” minimum* 19-1/2” minimum* 18-1/2” minimum 23-3/4” minimum

B

Fireplace Mantis

C

* When using a 90° elbow on the ue exhaust.

Single Vent

Direct Vent and

Colinear Vent

Coaxial Vent Flex Vent

25” minimum

27-3/4” maximum when using FGK28 Surround Kit

28-1/2” maximum when using FFK28 Surround Kit

29-1/2” maximum when using FIK28 Surround Kit

32” maximum when using FWK28 Surround Kit

28-1/2” minimum, 31” recommended for service

33” maximum when using FGK28 Surround Kit

34” maximum when using FFK28 Surround Kit

37” maximum when using FIK28 Surround Kit

34” maximum when using FWK28 Surround Kit

27297-5-0511Page 16

INSERT INTO MASONRY FIREPLACE

Figure 18

A 8-1/2” minimum* 8-1/2” minimum* 12-3/4” minimum

Bay Window Mantis with PV-4H

Short Top Cover Kit

* When using a 90° elbow on the ue exhaust.

Bay Window Mantis with PV-4H

Slim Top Cover Kit

* When using a 90° elbow on the ue exhaust.

B

C

A 13-1/2” minimum* 13-1/2” minimum* 17-7/8” minimum

B

C

Single Vent

27” maximum when using PVE-1 or PVE-2 Surround Kits

28-1/2” minimum, 33” minimum recommended for service

34-1/2” maximum when using PVE-1 Surround Kit

37” maximum when using PVE-2 Surround Kit

Single Vent

27” maximum when using PVE-1 or PVE-2 Surround Kits

28-1/2” minimum, 33” minimum recommended for service

34-1/2” maximum when using PVE-1 Surround Kit

37” maximum when using PVE-2 Surround Kit

Direct Vent and

Colinear Vent

25-1/4” minimum

Direct Vent and

Colinear Vent

25-1/4” minimum

Flex Vent

Flex Vent

Fireplace Mantis

* When using a 90° elbow on the ue exhaust.

27297-5-0511 Page 17

Single Vent

A 19-1/2” minimum* 19-1/2” minimum* 23-3/4” minimum

27-3/4” maximum when using FGK28 Surround Kit

B

C

28-1/2” maximum when using FFK28 Surround Kit

29-1/2” maximum when using FIK28 Surround Kit

32” maximum when using FWK28 Surround Kit

28-1/2” minimum, 31” recommended for service

33” maximum when using FGK28 Surround Kit

34” maximum when using FFK28 Surround Kit

37” maximum when using FIK28 Surround Kit

34” maximum when using FWK28 Surround Kit

Direct Vent and

Colinear Vent

25” minimum

Flex Vent

BAY WINDOW MANTIS CLEARANCE TO COMBUSTIBLES

C

C

A

BB

ACCESS
PANEL

12”

18”

24”

8”

6”

4”

COMBUSTIBLE TRIM AND MANTELS

ALLOWED IN SHADED AREA

40”

CEILING

Figure 19

Freestanding Clearances

A Rear Wall to Heater 2” (1-1/4” for coaxial venting)

B Side Wall to Heater 0” (4” recommended for door clearance)

C Corner Installation 0”

Coaxial Venting Installation Shown

Single Flue requires surround for combustion air.

Figure 21

Figure 20

Note: The Mantis Power-Vent High-Efciency Fireplace has been tested and approved for zero clearance to combustible

materials. It is recommended that clearances as listed above should be maintained to allow for removal of the
product for servicing.

Mantel and Ceiling Clearances

Figure 22

27297-5-0511Page 18

FIREPLACE MANTIS CLEARANCE TO COMBUSTIBLES

A

BB

6-1/4”

MIN

ACCESS
PANEL

ACCESS
PANEL

12”

18”

24”

8”

6”

4”

COMBUSTIBLE TRIM AND MANTELS

ALLOWED IN SHADED AREA

44-3/4”

CEILING

4-3/4”

A

ACCESS
PANEL

C

C

ACCESS
PANEL

Figure 23 Figure 25

Figure 24

Insert Clearances

A Rear Wall to Heater 2” (1-1/4” for coaxial venting)

B Side Wall to Heater 0”

C Corner Installation 0”

Note: The Mantis Power-Vent High-Efciency Fireplace has been tested and approved for zero clearance to combustible

materials. It is recommended that clearances as listed above should be maintained to allow for removal of the
product for servicing.

27297-5-0511 Page 19

Mantel and Ceiling Clearances

Figure 26

BAY WINDOW MANTIS SPECIFICATIONS

28”

33-3/4”

8-5/8”

17-5/8”

12-1/4”

OPTIONAL PEDESTAL

(MUST BE INSTALLED ON

HEATER PRIOR TO APPLIANCE

INSTALLATION)

28”

25-1/4”

27-3/4”

FLUE OUTLET

16-15/16”

17-5/8”

3-9/16” (9.0cm)

6”

17-13/16”

6-1/2”

PVE-1 or PVE-2

(SURROUND)

PVVK-CFA

FLEX VENT

PVVK-SH

VENT ADAPTOR

11-3/32”

12-3/4”

6-1/2”

PV-4H

(SHORTTOP

COVER KIT)

PV-2H

(SLIM TOP

COVER KIT)

Heater with Pedestal and Single Flue Adaptor

Figure 27

Heater with Slim and Short Top Cover Kits and Flex Kits.

Heater without pedestal

Figure 28

Figure 29

27297-5-0511Page 20

35-7/16”

OR

38”

LOUVER

29-3/4”

5-15/16”

23-13/16”

10-1/8”

6-13/16”

PV-4H

(SHORTTOP

COVER KIT)

3-9/16”

16-15/16”

BAY WINDOW MANTIS SPECIFICATIONS - (continued)

35-7/16”

OR
38”

LOUVER

29-3/4”

5-15/16”

23-13/16”

PV-2H

(SLIM TOP

COVER KIT)

11-5/16”

3”

3-9/16”

6”

FLUE OUTLET

AIR INLET

ELECTRIC

CORD

13/16”

1”

7-5/16”

2-13/16”

1-7/16”

3-9/16”

1-1/2”

6-1/8”

FLEX HOSE
OPENING

Fireplace Insert with Mantel Surround with PV-2H Slim Top Cover Kit

Figure 30

Fireplace Insert with Mantel Surround with PV-4H Short Top Cover Kit

27297-5-0511 Page 21

Figure 31

Rear View

Figure 32

35”

33-7/16”

35”

29-3/8”

PVVK-CFA

FLEX VENT KIT

23-1/2”

24-3/4”

MIN.

6-1/2”

FIREPLACE MANTIS SPECIFICATIONS

17-3/16”

3-9/16”

FLUE OUTLET

24-3/4” MIN

Figure 33

Heater with Flex Vent

Figure 34

Figure 35

Heater In Wall - 35 Inch Picture Frame Surround

FWK28(BL,CM,HP,SS) - Contains surround, hood, and

lower front

Figure 36

Heater - 35 Inch Surround Kit

FFK28(BL,CM,HP,SS) - Contains surround, hood, & lower

front

27297-5-0511Page 22

FIREPLACE MANTIS SPECIFICATIONS

38”

30-7/8”

FLUE

OUTLET

AIR INLET

ELECTRIC

CORD

FLEX HOSE
OPENING

1-1/8”

7-5/16”

4-3/16”

2-5/8”

6-1/8”

3-9/16”

13/16”

1”

28”

4”

8”

Figure 37

Heater - 38 Inch Surround

FIK28(BL,CM,HP,SS) - Contains surround, hood, & lower

front

Figure 39

Clearance for Access Panel In-Wall Units

See Gas Connection Instructions.

27297-5-0511 Page 23

Figure 38

GAS CONNECTION INSTALLATION

FLEXIBLE GAS
LINE

PUSH IN PLUG

ACCESS PLATE

CAUTION

The gas supply line to the heater must be installed
under conditions which will allow for easy removal of
the heater from its location for servicing of the heat-

er. For replace insert installation, incorporate a loop
into the exible gas line.

Under no circumstances should the gas supply line
to the appliance be installed in a way that would pre­vent the appliance from being serviced or inspected.

GAS SUPPLY LINE TO HEATER

1. Pull the factory installed exible gas line through the

hole in the back panel. See Figures 40 and 41.

2. Connect the gas supply line to exible gas hose. Ensure
that exible gas hose is not kinked after tting gas sup­ply line. Any excess exible line can be pushed back

into the heater.

3. Place rubber grommet that is supplied in hardware

packet over the exible gas line and secure in the hole

in the back of the appliance.

Figure 40 - Fireplace Mantis

Gas Connection - In-Wall Units - Fireplace Mantis
ONLY

1. Remove the access plate on the left side of the cabinet
by removing three screws as shown in Figure 42. Put
the screws aside.

2. Push the factory supplied exible gas line through the

access hole on the side.

3. Remove the knockout from the access plate and insert

the exible gas line through the hole.

4. Secure the access plate to the cabinet with three screws
removed in Step 1.

5. A plastic push in plug is supplied in the hardware pack­age, insert the plug into the 1-3/8 inch hole in the back

of the unit.

6. Insert the rubber grommet into the hole in the access

plate to protect the exible gas line.

Figure 41 - Bay Window Mantis

Figure 42

Gas Connection, Fireplace Mantis In-Wall Units

27297-5-0511Page 24

BAY WINDOW MANTIS LOG SET INSTALLATION INSTRUCTIONS

A

B

C

D

E

F

G

PLATE - LOG SUPPORT

FRONT HOT SURFACE IGNITOR

REAR HOT SURFACE IGNITOR REAR FLAME SENSOR

FRONT FLAME SENSOR

REAR BURNER

FRONT BURNER

REAR LEFT LOG (A)

TOP RIGHT LOG (G)

FRONT RIGHT LOG (E)

CENTER LOG (D)

FRONT LEFT LOG (C)

TOP LEFT LOG (F)

REAR RIGHT LOG (B)

Log Installation

Positioning of the logs is critical to the safe and clean opera­tion of this heater. If the logs are not placed in the proper
position, the appliance can soot, and create an unsafe op­erating condition.

CAUTION

Do not handle these logs with your bare hands! Al­ways wear gloves to prevent skin irritation. After han­dling the logs, wash your hands gently with soap and
water.

1. To access the log set parcel, lift off the top panel.

2. Pivot the left and right panels open.

3. Unhook the main door latches located on the right and
left side of the heater, then remove the door.

4. Connect the Rear Left Log (A) and the Rear Right Log

(B) to the pins on the sides of each log. Place the logs
behind the rear burner. The logs should be all the way

to the back of the rebox. See Figure 43.

5. Place the Front Left Log (C) into the groove on (A) Log,
and locate into the left corner of rebox. See Figure

44.

6. Place the Middle Log (D) over the ame sensors that are
located in the middle of the rebox.

7. Locate the Front Right Log (E) in the right front corner

of rebox. The Front Right Log (E) should t snug into

the corner.

8. Place the Top Left Log (F) onto the pin on (A) Log. The

“legs” of (F) Log will rest on (D) Log. See Figure 45.

9. Place the Top Right Log (G) onto the pin on (B) Log.
The “legs” of (G) Log will rest on (E) Log.

10. Place the door assembly on the heater and secure with
the main door latches that are located on right and left
sides of the heater.

11. Close the left and right panels.

12. The installation of the log set is complete.

13. Verify that the logs are not in contact with the ame sen­sor. Interference with the ame sensor will effect the

operation.

Log Placement

Figure 44

Log Placement

Figure 45

Log Placement

Figure 43

27297-5-0511 Page 25

Firebox Layout

Figure 46

Log Assembly

Figure 47

FIREPLACE MANTIS LOG SET INSTALLATION INSTRUCTIONS

B

F

D

A

H

C

G

E

REAR LOG SUPPORT

FRONT LOG SUPPORT

FIREBOX BOTTOM

REAR HOT SURFACE IGNITOR

REAR FLAME SENSOR

REAR BURNER

RIGHT REAR

LOG SUPPORT

SHELF

FRONT BURNER

FRONT FLAME SENSOR

FRONT HOT SURFACE IGNITOR

LEFT REAR

LOG SUPPORT

SHELF

A

Rear Log

B

Left Log

C

Right Log

D

Middle Log

E

Front Left Log

F

Front Right Log

G

Left Top Log

H

Right Top Log

Log Installation

Positioning of the logs is critical to the safe and clean opera­tion of this heater. If the logs are not placed in the proper
position, the appliance can soot, and create an unsafe op­erating condition.

CAUTION

Do not handle these logs with your bare hands! Al­ways wear gloves to prevent skin irritation. After han­dling the logs, wash your hands gently with soap and
water.

Log Placement

1. Place the Rear Log (A) onto the rear log support. The
notch in the Rear Log ts over the rear igniter. See Fig-

ure 50.

2. Place Left Log (B) on the left rear log support shelf. The
charred portion of the log must face inward. See Figure

48.

3. Locate the Middle Log (D) on front log support between
the front and back burners.

4. Place the Front Right Log (F) on the right side of rebox
bottom. The notch in the bottom of Front Right Log ts
over the front ame sensor. See Figure 51.

5. Place the Front Left Log (E) on left side of the rebox
bottom. The notch in bottom of Front Left Log ts over

front Igniter. See Figure 51.

6. Place the Right Log (C) on the right rear log support shelf.

The top of log rests on Rear Log (A) and bottom of log rests

on Firebox bottom. The charred portion of log must face
inward. See Figure 49.

7. Place the Left Top Long Log (G) on the pin on Left Log
(B). The upper left leg of Left Top Log will rest on Rear

Log (A). The upper right leg of Left Top Log will rest on

Middle Log (D).

8. Place the Right Top Long Log (H) on the pin on the
Right Log (C). The bottom left leg of Right Top Log (H)

will rest in the indentation on the right side of the Middle

Log (D). The bottom right leg of the Right Top Log (H)

will rest in the indentation in the Front Right Log (F).

9. Verify that the logs are not in contact with the ame sen­sor. Interference with the ame sensor will effect the

operation.

Log Placement

Figure 48

Log Placement

Figure 49

Log Assembly

Figure 50

Firebox Layout

Figure 51

27297-5-0511Page 26

WIRING

14 WAY RIBBON TO

CONTROL MODULE

P1

T1

T2

P2

OPTIONAL
CONTROL
WIRING

RECEIVER

OR

T-STAT

BLACK

WHITE

PURPLE

YELLOW

WHITE

WHITE

BLACK

RED

R. BRN. THERM (4)

L. BRN. THERM (3)

BLACK

BLUE

WHITE

RED

BLUE

JUNCTION
BLOCK

TO

TRANSFORMER

BLUE

INDICATOR

SWITCH

BLACK

WHITE

WHITE

+ -

W1

W2

C R

WARNING

Potential risk of re, electric shock, and personal
injury. Take precautions to reduce such risks.

CAUTION

Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.

This appliance is equipped with a three-prong
[grounding] plug for your protection against shock hazard
and should be plugged directly into a properly grounded
three-prong receptacle. Do not cut or remove the ground­ing prong from this plug. For an ungrounded receptacle, an

adapter, which has two prongs and a wire for grounding, can
be purchased.

Proper line voltage polarity must be maintained in order for the
control system to operate correctly. Verify the incoming neutral
line is connected to the white wire and the incoming “hot” line is
connected to the black wire. The heater will not operate prop­erly unless the polarity and ground are correct.

Instructions for connecting controllers and thermostats can be
found on page 32.

27297-5-0511 Page 27

Figure 52

Figure 53

START UP CHECK LIST

WARNING

BEFORE OPERATING THIS APPLIANCE,
CAREFULLY READ THE FOLLOWING.

1. Verify the gas line service does not exceed 10.5 in. w.c.
and is not below 5.0 in. w.c. for natural gas, nor exceeds

13.0 in. w.c. or is below 11.0 in. w.c. for LP gas.

2. Check and inspect the appliance for gas leaks. In the
event of gas leaks, cut off the gas supply to the heater
immediately and call your gas supplier. Verify the gas
line has been purged.

3. Verify that all exhaust and inlet air pipes are unobstruct-

ed and properly joined.

4. Visually verify the burners are free of dust and debris.
See Figures 46 and 51.

5. Check and verify that logs are place correctly. See pag­es 25 to 26. The logs must be in the correct position or
the heater will not operate correctly.

DO NOT light heater without the logs installed, the heat­er will not operate properly.

6. Verify that all panels are secured in place and that the
glass assembly door has been locked in position.

7. Verify the two burner switches are in the OFF position

before applying power and the main power switch.

8. After verifying and checking all the above points, pro­ceed to lighting instructions. Refer to Page 29.

9. Verify that the polarity of the connections are correct
and the line voltage power leads are secure.

Note: If using a surround, verify it is installed per the
instructions included with the kit.

27297-5-0511Page 28

LIGHTING INSTRUCTIONS

OFF

ON

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS
OF LIFE.

A. BEFORE LIGHTING smell all around the appliance

area for gas. Be sure to smell next to the oor be-

cause some gas is heavier than air and will settle on

the oor.

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 neigh-

bor’s phone. Follow the gas supplier’s instruc­tions.

• If you can not reach your gas supplier, call the re

department.

LIGHTING INSTRUCTIONS

1. STOP! Read the safety information above on this la-

bel.

2. Set the thermostat, if used, to the lowest setting.

3. Turn off all electric power to the appliance. Turn off

electrical control switches to “O.”

4. This appliance is equipped with an ignition device that
automatically lights the burner. Do not try to light the
burner by hand.

5. Remove the front access panel below the glass door
by pulling both sides forward simultaneously.

6. Turn gas line valve to “ON.”

7. Wait ve (5) minutes to clear out any gas. Then smell
for gas, including near the oor. If you smell gas, STOP!
Follow “A” in the safety information above. If you do

not smell gas, go to the next step.

B. Use the on-the-wall switch or remote con-

trol switch to turn the gas control on/off. Any at­tempted repairs or adjustments should be
performed by a qualied service technician.
Applying force or attempted repair may result in a re

or explosion.

C. Do not use this appliance if any part has been under

water. Immediately call a qualied service technician

to inspect the appliance and to replace any part of the
control system and any gas control which has been
under water.

8. Replace the front access panel, press both sides of
the panel until both lock position.

9. Turn on electric power to the appliance. Turn on elec­tric control switches to “ ”

10. Set thermostat to desired setting (if available).

11. If the appliance will not operate, follow the instructions

“TO TURN OFF GAS TO APPLIANCE,” and call your

service technician or gas supplier.

TO TURN OFF GAS TO APPLIANCE

1. STOP! Read the safety information above.

2. Set the thermostat, if used, to the lowest setting.

3. Turn off electric power to the appliance.

27297-5-0511 Page 29

4. Remove front access panel.

5. Turn gas line valve to “OFF.”

6. Replace front access panel.

START UP AND ADJUSTMENTS

FRONT
BURNER
SWITCH

REAR
BURNER
SWITCH

ECONOMY
DISPLAY
BUTTON

= OFF
=ON

A. Turn on the main electrical power to the heater and turn

the main burner switch to the ON position. See Figure 54.

Verify power is on by checking if there is power to the cir­cuit board. If the unit has power, the power light will be
illuminated.

Figure 54

B. Turn on the main gas supply.
C. Turn both burner switches on to ignite both the front and

rear burners.

D. The Display Panel board should be energized, and the

power light will be illuminated.

Sequence of Operations – Front and Back Burners

1. The Display Panel will be energized, and the lights for the
front burner and back burner will ash.

2. The inducer will activate immediately and will prove the
pressure switch within 16 seconds. This will initiate the
ignition sequence.

3. The rear igniter (HSI) will energize and start to glow red.

4. Within 3 to 5 seconds, the gas valve will open and ignite

the rear burner. The ame sensor will verify the ame is

present within 2 to 5 seconds.

5. The igniter for the front burner will energize 5 to 7 seconds
after the ame is established on the rear burner.

6. The gas valve will open to ignite the front burner within 3 to
5 seconds. The ame sensor will verify the ame is pres­ent within 2 to 5 seconds.

7. As the Mantis warms up, the circulating blower will acti­vate, starting on Low speed. The Low Blower L.E.D. will
light when the blower turns on.

8. As the Mantis continues to operate, the speed of the
circulating blower will increase, and the L.E.D. for Medium

and High will appear.

CAUTION

When switching from one burner to the other burner,

be sure to rst turn “ON” the desired burner before

turning “OFF” the burner that is operating. Failure to
follow this sequence may result in the heater needing
to be reset. See page 33 - Resetting the Heater.

Sequence of Operations – One Burner Only

1. The Display Panel will be energized, and the light for either
the front burner or back burner will ash, corresponding to

which burner switch is activated.

2. The inducer will activate immediately and will prove the
pressure switch within 16 seconds. This will initiate the
ignition sequence.

3. The igniter (HSI) will energize and start to glow red.

4. Within 3 to 5 seconds, the gas valve will open and ignite

the burner. The ame sensor will verify the ame is present

within 2 to 5 seconds.

5. The igniter for the front burner will energize 5 to 7 seconds
after the ame is established on the burner.

6. As the Mantis warms up, the circulating blower will acti-

vate, starting on Low speed. The Low Blower L.E.D. will
light when the blower turns on.

7. As the Mantis continues to operate, the speed of the
circulating blower may increase.

Figure 56

Checking Manifold Pressure

Both Propane and Natural gas valves have a built-in pressure
regulator in the gas valve. Natural gas models will have a mani­fold pressure of approximately 4.0 in. w.c. at the valve outlet,
with the inlet pressure to the valve at 5.0 in. w.c. to 10.5 in. w.c.
Propane gas models will have a manifold pressure approxi­mately 7.0 in. w.c. at the valve outlet, with the inlet pressure to
the valve from 11.0 in. w.c. to 13.0 in. w.c.

A 1/8 inch N.P.T. plugged tapping, accessible for test gauge
connection, is located on the outlet side of the gas control.

Figure 55

Blower Operation

The circulating air blower will automatically engage and in­crease in speed depending on the operation of the burners.
See Figure 56. In most circumstances, the circulating blower
will start 3 to 5 minutes after ignition of the burners.

Once the heater is turned off or the call for heat has been satis­ed, the circulating blower will continue to run. The blower will

automatically turn off once the heater has cooled down.

27297-5-0511Page 30

START UP AND ADJUSTMENTS

FRONT
BURNER
SWITCH

REAR
BURNER
SWITCH

ECONOMY
DISPLAY
BUTTON

= OFF
=ON

High Altitude

The Mantis can be installed to altitudes up to 10,000 feet in the
U.S., and up to 4,500 feet in Canada. The installation must meet

the requirements of the National Fuel Gas Code or local jurisdic­tions. A high altitude kit is needed for installation above 2,000 feet.
See the instructions provided with the Mantis High Altitude Kit for

derate instructions.

Humidier Operation

When the heater has been running, the humidier L.E.D.
(Figure 56) may turn on to signal that the pump has been acti-

vated. Refer to Page 30 - Automatic Humidier Operation.

Paint Curing - First Firing

The Mantis Power-Vent High-Efciency Fireplace has been
painted with the high quality heat resistant silicon paint. To
ensure that the paint is properly cured, allow the heater to operate
with both burners on, for approximately 1 hour. During the initial

ring of the appliance, it is common for smoke to appear.

AUTOMATIC HUMIDIFIER OPERATION

CAUTION

DO NOT touch the surface of the heater. The paint will soft­en during the initial operation, and will harden over time.
Once the paint is cured, it will not soften again.

• To prevent triggering of smoke alarms, supply proper
ventilation to the room where the unit is installed.

• During initial ring of logs, an odor will occur as the logs are

curing. It is also common for the burner to burn with a yellow

ame.

• DO NOT clean the heater with any caustic or abrasive

cleaning solutions. This will damage the surface.

• Any damage to the painted surfaces should be repaired only
with authorized paint available from your Mantis Dealer.

Shut Down Instructions

To turn the heater off, simply switch the burner switch(es) to the

“OFF” position. See Figure 55. DO NOT cut the main electrical

power to the heater.

The circulating blower will continue to operate after the burners
are turned off. The blower will stop automatically once the heater
has cooled down.

The Mantis Power-Vent High-Efciency Fireplace has an
automatic humidier designed into the heater. As the heater

operates, condensate is created and is collected in a tank inside
the heater. The condensate pump will take the condensate that is
collected and pump it to a stainless steel tray where it evaporates

into the airstream. Humidity is then restored into the space.

Note: When the automatic humidier is engaged and is
transferring the condensate, there may be a noticeable hissing
sound. This is normal, and the sound should persist for less than
30 seconds.

The amount of condensate created will vary based on several fac­tors including but not limited to location of heater, air temperature,

length of venting, and whether the vent pipe is horizontal or verti­cal. The humidier will operate intermittently while the heater is

operating.

While the condensate pump is transferring the condensate from

the tank to the tray, the humidier L.E.D. light will ash during pump
operation. See Figure 56. Once the condensate is transferred, the

light will turn off.

OPTIONAL CONTROLS

Economy Mode (Red Button Operation)

To utilize this feature, a programmable control or thermostat must
be connected to the heater. A red button is located next to the

burner switches on the front control panel. See Figure 58. This is
called the economy mode.

Figure 57

27297-5-0511 Page 31

Figure 58

BLACK

WHITE

RED

TO

TRANSFORMER

BLUE

TO “T2” (REAR BURNER)

TO “T1” (FRONT BURNER)

REMOTE WIRE HARNESS
(TOBE REMOVED)

WHITE,
WHITE/
BLACK

W1 RW2C

BLUE

TO “T1”

TO “T2”

C

TO

THERMOSTAT

W2

W1

R

JUNCTION
BLOCK

RECEIVER PLACEMENT

REMOTE

CONTROL

RECEIVER OR

T24V THERMOSTAT

BLACK

BLACK

WHITE

WHITE

RED

JUNCTION
BLOCK

TO

TRANSFORMER

BLUE

TO “T2” (REAR BURNER)

TO “T1” (FRONT BURNER)

WHITE

W1 RW2C

BLUE

TO “T1”

TO “T2”

OPTIONAL CONTROLS

To use this feature, both burner switches need to be in the “ON”

position, and the red button must be pressed so it is illuminated.
This will ignite the front burner. The front burner will remain on
when the red button is illuminated, and the back burner will cycle
with the thermostat. The red button acts only as an override for the
front burner.

To Deactivate

Press the red button so it is not illuminated, then the heater will
return to normal operation.

TEMPERATURE CONTROLS

FRBTP Battery Operated Remote w/ Programmable Ther-

mostat

FRBTC Battery Operated Remote w/ Thermostat

TRW Battery Operated Wireless Remote Wall Thermostat

TMV2 Thermostat, 2 Stage

T24V Thermostat, 24 Volt

TDV1 Wall Thermostat, 24 Volt (Fireplace Mantis Only)

Installation Instructions for FRBTP, FRBTC, and TRW

CAUTION

Before connecting any controller, disconnect power
to the appliance.

Remote Controls FRBTP, FRBTC and TRW are all battery oper­ated devices. Begin the installation by unplugging the unit and re­moving the front louver panel or turn off main power switch.

Remove the wire nut from the black and white wire from junction

block.

The black or white wire can be inserted in either remote control
receiver connection hole, or connected to the T24V thermostat
screws. There is no polarity at this connection. See Figure 59.

Installation Instruction for TMV2 - Two Stage Thermostat
Model:

CAUTION: Before connecting any controller, disconnect
power to the appliance.

Begin the installation by removing the front louver panel.

Determine the mounting location of the thermostat. Using stan-

dard 18 AWG wire, run four (4) strands of wire to the back of the
appliance and to the junction block. Cut the wire to the correct

length. See Figure 60.

Figure 60

Replace the front louver panel and plug unit into outlet, or restore

power. Turn both burner switches “ON.” The burner switches must
remain in the ON position for thermostat to function. Set the ther-

mostat using the instructions provided with the thermostat.

Note: If the heater will not be used for long periods of time,
turn the burner switches to the “OFF” position and turn the
power off at the power source.

Mounting A Receiver Box

If a remote thermostat is used, the receiver must be located inside
the heater. The receiver can be mounted to the top of the blower
housing and secured with hook and loop tape. See Figure 61.

Figure 59

Replace the front louver panel and plug the unit into the outlet to

restore power. Turn both burner switches to the ON position. Burn­er switches must remain in the ON position for the remote to func­tion. Adjust the remote from the instructions provided with the re-

mote control. Set T24V thermostat to desired temperature.

Note: If the heater will not be used for long periods of time,
turn the burner switches to the “OFF” position and turn the
power off at the power source.

Figure 61

27297-5-0511Page 32

MAINTENANCE & SERVICE

The Mantis should be inspected and serviced annually by a

qualied service person. This will ensure that the appliance is
operating safely and efciently. Should you suspect any

abnormal operation, contact a service person that has been
trained to service this product.

Cleaning the Glass Door

After the initial paint curing, a slight lm may form on the
glass. It is recommended to clean the glass with gas re-

place glass cleaner.

The glass will need to be cleaned periodically during the
year. Use care when removing and cleaning the glass. In

the event the glass needs replaced, contact a qualied ser­vice person. Only glass approved by Empire Comfort Sys-

tems Inc. may be used, any substitute glasses will void the
warranty.

CAUTION

Do not attempt to clean the glass when it is hot. Do
not strike or hit the glass.

WARNING

Do not operate this appliance without the glass door
in place. Do not operate if the glass front is broken or
damaged. Do not use the glass door if the gasket is
missing or is damaged.

Resetting the Heater

To reset the heater, rst turn both burner switches to the OFF
position. Verify the red button next to the burners is not

illuminated. If a Remote Control is tted, turn the remote to
the “OFF” position. Turn the power off at the power source for

5 minutes.

Turn the power back on, and verify the L.E.D. lights on the
Control Panel Circuit Plate are illuminated. The burners
should ignite in approximately 60 seconds. The circulating
blower will start in 3 to 5 minutes. The blower may continue
to operate after the burners are turned off.

WARNING

Potential risk of re, electric shock, and personal in­jury. Take precautions to reduce such risks

CAUTION

Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dan­gerous operation. Verify proper operation after ser­vicing.

If equipped, the Mantis can also be reset by switching the

main power switch to the “OFF” position for 5 minutes. See

Figure 62.

CAUTION

Be certain the glass is cool before handling.

BAY WINDOW MANTIS MODELS

Removing the Glass Door

1. Remove the top of the cabinet.

2. Open the panels on the left and right sides. The panels

pivot in place.

3. Release the two door latches on both the left and right

sides of the rebox.

4. Carefully grab the glass frame and pull towards you. Do
not damage or remove the gasket from the door.

FIREPLACE MANTIS MODELS

Removing the Glass Door

1. Remove the lower louvered panel by lifting up then pull­ing out.

2. Release the two hinge clips on underside of rebox.

3. Angle the bottom of glass assembly approximately
60 degrees out from rebox. Gently pull glass assembly
away from rebox. Do not damage or remove the gas-

ket from the door.

Figure 62

27297-5-0511 Page 33

MAINTENANCE & SERVICE

Over Temperature Limit Switch

The Mantis Power-Vent High-Efciency Fireplace is
protected against overheating with a high temperature
switch, which protects the heat exchanger, plastic sump
and inducer.

If the over temperature limit activates, the gas supply will
shut off and both the inducer and circulating air blower will

run. Once the heater cools down, the limit will reset and the

heater will operate normally.

Circulating Air Blower

The circulating air blower should be checked and cleaned

annually by a qualied service person to ensure that your
appliance is operating efciently. Any dirt or lint can affect

the operation of the blower.

RECOMMENDED MAINTENANCE

MAINTENANCE ITEM

Verify the area is free from combustible materials. X X

Verify the combustion and ventilation air is not restricted. X

Verify the ue and inlet pipes do not have any cracks or

holes.

Verify burner ame. X

Clean the blower compartment X

Clean the burners. X

Verify the condensate system is clean and leak free. X

Heat Exchanger

The heat exchanger is located on the backside of the heat­er. The heat exchanger should be inspected and cleaned

annually by a qualied service person.

Replacement Logs

If for any reason a log should need replacement, contact
your Mantis dealer for correct replacement logs. Replace­ment logs must be installed and positioned as outlined on
Pages 25 to 26.

CAUTION

Proper positioning of the logs is critical to the safe
and clean operation of this heater. Sooting and other
problems may result if the logs are not properly and

rmly positioned in the appliance.

FREQUENCY OF MAINTENANCE

MONTHLY

BY HOMEOWNER

ANNUALLY

BY SERVICE PERSON

X

If service is needed to the condensate pump, the wires must be attached in the same order they were removed. If the
pump is replaced, follow the wire connection instruction label on the pump cover.

Figure 63

27297-5-0511Page 34

MASTER PARTS DISTRIBUTOR LIST

To Order Parts Under Warranty, please contact your local Empire dealer. See the dealer locator at www.empirecomfort.

com. To provide warranty service, your dealer will need your name and address, purchase date and serial number, and the
nature of the problem with the unit.

To Order Parts After the Warranty Period, please contact your dealer or one of the Master Parts Distributors listed below.

This list changes from time to time. For the current list, please click on the Master Parts button at www.empirecomfort.
com.

Please note: Master Parts Distributors are independent businesses that stock the most commonly ordered Original Equipment
repair parts for Heaters, Grills, and Fireplaces manufactured by Empire Comfort Systems Inc.

Dey Distributing

1401 Willow Lake Boulevard

Vadnais Heights, MN 55101

Phone: [phone]
Toll Free: 800-397-1339
Website: www.deydistributing.com
Parts: Heater & Hearth

Victor Division of F. W. Webb Company

200 Locust Street

Hartford, CT 06114

Phone: [phone]
Toll Free: 800-243-9360
Fax: [phone]
Toll Free Fax: [phone]
Websites: www.fwwebb.com & www.victormfg.com
Parts: Heater & Hearth and Grills

HOW TO ORDER REPAIR PARTS

East Coast Energy Products

10 East Route 36
West Long Branch, NJ 07764

Phone: [phone]
Toll Free: 800-755-8809
Fax: [phone]
Website: www.eastcoastenergy.com
Parts: Heater & Hearth and Grills

Parts Not Under Warranty

Parts can be ordered through your Service Person, Dealer, or a Master Parts Distributor. See this page for the Master Parts Distribu­tors list. For best results, the service person or dealer should order parts through the distributor. Parts can be shipped directly to the

service person/dealer.

Warranty Parts

Warranty parts will need a proof of purchase and can be ordered by your Service Person or Dealer. Proof of purchase is required for
warranty parts.

All parts listed in the Parts List have a Part Number. When ordering parts, rst obtain the Model Number and Serial Number from the

name plate on your equipment. Then determine the Part Number (not the Index Number) and the Description of each part from the fol­lowing illustration and part list. Be sure to give all this information . . .

Appliance Model Number Part Description

Appliance Serial Number Part Number

Type of Gas (Propane or Natural)

Do not order bolts, screws, washers or nuts. They are standard hardware items and can be purchased at any local hardware store.

Shipments contingent upon strikes, res and all causes beyond our control.

27297-5-0511 Page 35

BAY WINDOW MANTIS PARTS LIST

WARNING

Use only manufacturer’s replacement parts. Use of any other parts could cause injury or death.

INDEX

NO.

1 26751 REAR PANEL

2 21654 BRACKET, PIPE ASSEMBLY

3 24831 REAR HEAT SHIELD ASSEMBLY

4A 21664

4B 22933 SLIM TOP ASSEMBLY

4C 22934 SHORT TOP ASSEMBLY

5 R8854 BALL STUD

6 22693 TOP HEAT SHIELD ASSEMBLY

7 21637 FIREBOX ASSEMBLY

8 26089

9 R10337 GASKET, END PLATE

10 R9987 FLEX LINE - 24”

11 26087

12 22863

13 R10299 SWITCH, BIMETALIC

14 R8795 GASKET, SUMP

15 26090 FIN TUBE ASSEMBLY

16 R8811 GASKET, INLET HEADER

17 21650 TUBING (SUMP TO PUMP)

18 21652

19 21627 SHIELD, REAR INNER

20 25227 ELECTRIC PARTS PLACE

21 21667 LEFT SIDE DOOR ASSEMBLY

22 22642 TUBE, CONDENSATE

23 21647

24 21605 COVER, INLET AIR DUCT

PART

NO.

DESCRIPTION

TOP COVER ASSEMBLY
(INCLUDES #5)

HEAT EXCHANGER TUBE
ASSEMBLY

SUMP ASSEMBLY

(INCLUDES #12 & #14)

BLOWER ASSEMBLY

(INCLUDES #14)

TUBING (SUMP TO PRESSURE
SWITCH)

CONNECTOR TUBING ASSEMBLY
(PUMP TO CONDENSATE TUBE)

INDEX

NO.

25 22780 INLET AIR DUCT ASSEMBLY

26 R8810 GASKET, INLET AIR DUCT

27 21641

28 R4053 CLAMP, DOOR (4 USED ON UNIT)

29 22773 THERMISTER ASSEMBLY

30 R10488 3/8 ELBOW, 90

31 26672 BRACKET, SHIELD

32 26789 BOTTOM PAN ASSEMBLY

33 26123 INLET HEADER

34 21665 RIGHT SIDE DOOR ASSEMBLY

35 21651

36 R8835 FITTING, BARBED HOSE

37 22865

38 21611 BRACKET, IGNITOR

39 R8807 FLAME SENSOR

40 26800 LOG PLATE ASSEMBLY

41 26787

41 22753

42 26801

42 22658

43 R9831

44 R8790 BUSHING, BURNER

45 P208 REAR ORIFICE, LPG

45 P288 REAR ORIFICE, NAT

46 P208 FRONT ORIFICE, NAT

46 P307 FRONT ORIFICE, LPG

PART

NO.

DESCRIPTION

BRACKET ASSEMBLY THERMISTER

(SPRING CLIP INCLUDED)

TUBING (FIREBOX TO PRESSURE
SWITCH)

IGNITOR, HOT SURFACE
ASSEMBLY

SMALL BURNER ASSEMBLY LP
(INCLUDES R10675 AND #44)

SMALL BURNER ASSEMBLY NAT
(INCLUDES #43 AND #44)

LARGE BURNER ASSEMBLY - LP
(INCLUDES #44 AND R10676)

LARGE BURNER ASSEMBLY - NAT
(INCLUDES #44 AND R10675)

BUSHING, AIR SHUTTER
(NAT ONLY)

27297-5-0511Page 36

BAY WINDOW MANTIS PARTS LIST

WARNING

Use only manufacturer’s replacement parts. Use of any other parts could cause injury or death.

INDEX

NO.

47 R10796 HOLDER, ORIFICE

48 R7572 JAMB NUT

49 27071 GAS LINE - REAR

50 26128 GAS LINE - FRONT

51 M174 GASKET

52 11269 GAS LINE BRACKET

53 R8886 COMPRESSION FITTING

54 R8812 VALVE, NAT

54 R8869 VALVE, LPG

55 R8898 PIPE NIPPLE

56 R8825 SOLENOID

57 R3312 CONNECTOR, MALE 3/8 X 3/8

58 R9487 REMOTE WIRE HARNESS

59 R10072 SHUT-OFF VALVE

60 21643 FIREBOX BASE ASSEMBLY

61 R10775 CONTROL BOX ASSEMBLY

62 R8889 TRANSFORMER 12-24V

63 R8804 TRANSFORMER 24V

64 25325 CONDENSATE PUMP COVER

65 R8817 TERMINAL STRIP

67 22778 CIRCULATING BLOWER ASSEMBLY

68 21663 DOOR ASSEMBLY, BLACK

68 22758 DOOR ASSEMBLY, CHROME

68 22759 DOOR ASSEMBLY, GOLD

69 26582 FRONT PANEL ASSEMBLY

70 R8840

71 R8809 SWITCH, DOUBLE ROCKER

72 R8904 CIRCUIT BOARD

PART

NO.

DESCRIPTION

WIRE HARNESS ASSEMBLY
WITH ECONOMY SWITCH

INDEX

NO.

73 25226 CIRCUIT BOARD PLATE

74 R10759 RIBBON CABLE

75 R8872 CIRCUIT BOARD WIRE HARNESS

76 R10182 WIRE HARNESS, 120V

77 R10183 WIRE HARNESS 12V

78 R10190 WIRE HARNESS 12V

79 26075 PUMP ASSEMBLY

80 R10489 AIR PRESSURE SWITCH

81 R8881 CAPACITOR 3uF

82 R8880 CAPACITOR 4uF

83 R8911 TRANSFORMER WIRE ASSEMBLY

84 R10485 LOG, LEFT REAR

85 R8822 LOG, TOP LEFT

86 R10487 LOG, TOP RIGHT

87 R10486 LOG, RIGHT

88 R8820 LOG, CENTER

89 R8819 LOG, FRONT LEFT

90 R8821 LOG, FRONT RIGHT

91 R2522 MAIN POWER SWITCH

92 R10610

NOT

SHOWN

NOT

SHOWN

NOT

SHOWN

PART

NO.

WIRE HARNESS, MAIN POWER
SWITCH

R10675 BUSHING, AIR SHUTTER

R10676 BUSHING, AIR SHUTTER

R6389 THERMOSTAT

DESCRIPTION

27297-5-0511 Page 37

BAY WINDOW MANTIS PARTS VIEW

1

31

4A

5

6

9

7

30

28

5

21

27

24

28

19

11

12

9

34

16

14

26

25

22

17

8

3

2

13

36

18

35

23

4B

15

27297-5-0511Page 38

BAY WINDOW MANTIS PARTS VIEW

69

67

32

61

50

47

48

53

54

53

51

60

20

56

55

48

47

80

52

65

39

40

41

42

38

45

46

89

85

86

87

88

81

84

78

77

83

76

90

44

43

49

37

82

70

71

64

79

63

62

57

59

30

10

74

75

68

29

58

72

73

91

92

93

27297-5-0511 Page 39

FIREPLACE MANTIS PARTS LIST

WARNING

Use only manufacturer’s replacement parts. Use of any other parts could cause injury or death.

INDEX

NO.

1 25207 PANEL - TOP

2 21595 CONDENSATE TRAY

3 25223 LOUVER - TOP

4 25212 REAR BURNER TRAY

5 R9987 FLEX LINE

6 26081

7 25205 PANEL - LEFT SIDE

8 21605 INLET AIR DUCT COVER

9 21604 INLET AIR DUCT

10 R8810 INLET AIR DUCT GASKET

11 R8825 SOLENOID

12 R10072 GAS SHUT OFF VALVE

13 R8812 VALVE - NAT

14 26071 GLASS ASSEMBLY

15 25208 BOTTOM PAN

16 22778

17 R8817 TERMINAL STRIP

18 R10338 PRESSURE SWITCH

19 25227 ELECTRICAL PARTS PLATE

20 R10775 CONTROL BOX

21 R8889 TRANSFORMER 12-24V

22 R8881 CAPACITOR 3uF

23 R8880 CAPACITOR 4uF

24 R8804 TRANSFORMER - 24V

25 R10079 CONDENSATE PUMP BOX

26 R8832 CONDENSATE PUMP

PART

NO.

DESCRIPTION

FRONT BURNER TRAY
ASSEMBLY

CIRCULATING BLOWER ASSEM-

BLY

INDEX

NO.

27 R10080 CONDENSATE PUMP LID

28 25226 CIRCUIT BOARD PLATE

29 R8809 DOUBLE ROCKER SWITCH

30 R8840

31 R8904 CIRCUIT BOARD

32 26083 FRONT BURNER ASSEMBLY

33 26082 BACK BURNER ASSEMBLY

34 R11012 ORIFICE HOLDER

35 22865

36 R10967

37 25210 AIR DUCT CHANNEL

38 25214 PANEL - RIGHT SIDE

39 25221 FIREBOX BASE

40 25222

41 R4053

42 25225

43 25215 BAFFLE

44 26080 FIREBOX ASSEMBLY

45 26087 SUMP ASSEMBLY

46 R8799 INDUCER ASSEMBLY

47 26089 FLEX PIPE ASSEMBLY

48 26090 FIN TUBE ASSEMBLY

PART

NO.

DESCRIPTION

WIRE HARNESS ASSEMBLY
WITH ECONOMY SWITCH

HOT SURFACE IGNITOR
(2 REQUIRED)

FLAME SENSOR
(2 REQUIRED)

DOOR BRACKET
(2 REQUIRED)

DOOR CLAMP
(2 REQUIRED)

LATCH BRACKET
(2 REQUIRED)

27297-5-0511Page 40

FIREPLACE MANTIS PARTS LIST

WARNING

Use only manufacturer’s replacement parts. Use of any other parts could cause injury or death.

INDEX

NO.

49 R8811 INLET HEADER GASKET

50 25204 PANEL - BACK

51 R10796 ORIFICE HOLDER

52 R10182 WIRE HARNESS - 120V

53 R10190 WIRE HARNESS - 12V SMALL

54 R10183 WIRE HARNESS - 12V LARGE

55 R8814 THERMISTER

56 R9487 REMOTE WIRE ASSEMBLY

57 R8872 WIRE HARNESS

58 R10759 RIBBON CABLE

59 24831

60 22642 CONDENSATE PUMP TUBE

61 25325 CONDENSATE PUMP COVER

62 R10376 REAR LOG

63 R10381 LEFT LOG

64 R10380 RIGHT LOG

65 R10379 MIDDLE LOG

66 R10378 FRONT LEFT LOG

67 R10377 FRONT RIGHT LOG

68 R10383 LEFT TOP LOG

69 R10382 RIGHT TOP LOG

PART

NO.

R10077 LOG SET (INCLUDES 62 - 69

DESCRIPTION

REAR HEAT SHIELD
ASSEMBLY

INDEX

NO.

70 25216

71 R2522 MAIN POWER SWITCH

73 R10610

NOT

SHOWN

NOT

SHOWN

NOT

SHOWN

NOT

SHOWN

NOT

SHOWN

NOT

SHOWN

NOT

SHOWN

PART

NO.

R10093 ORIFICE #47 - NAT

R10094 ORIFICE #49 - NAT

R10095 ORIFICE #1.2MM - LP

R10096 ORIFICE #55 - LP

26117

R10299 SWITCH, BIMETALIC

R6389 THERMOSTAT

DESCRIPTION

BRACKET, STANDOFF
(2 REQUIRED)

WIRE HARNESS,
MAIN POWER SWITCH

AIR DUCT CHANNEL COVER
PLATE - NAT ONLY

27297-5-0511 Page 41

1

2

3

4

5

6

7

8

9

11

12

13

14

15

16

17

18

19

60

20

21

22

23

24

25

53

54

55

56

58

57

52

26

27

28

29

30

31

32

61

33

37

38

39

59

40

43

44

48

45

46

47

50

49

41

42

42

41

40

36

10

35

35

34

51

62

69

64

65

63

68

66

67

70

71

73

72

FIREPLACE MANTIS PARTS VIEW

27297-5-0511Page 42

WARRANTY TERMS

Purchase Date:

Dealer Name/Phone:

Installer - Place Serial Number

Empire Comfort Systems Inc. warrants this hearth product to be free from

defects at the time of manufacture and for the periods specied below.
Hearth products must be installed by a qualied technician and must be

maintained and operated safely, in accordance with the instructions in the
owner’s manual. This warranty applies to the original purchaser only and is

not transferable. All warranty repairs must be accomplished by a qualied gas appliance technician.

Limited Ten-Year Heat Exchanger Warranty

Empire promises to the owner that if the heat exchanger (see parts list) fails because of defective workmanship or material
within ten years from the date of purchase, Empire will repair, or at Empire’s option, replace the defective heat exchanger.

Sticker Here and Leave this

Manual with the Consumer.

Limited Five-Year Parts Warranty

Should any part fail because of defective workmanship or material within ve years from the date of purchase, Empire will

repair or replace it, at Empire’s option.

Limited Two-Year Labor Warranty

Within two years from the date of purchase, Empire will pay reasonable labor to have that defect repaired or replaced at

Empire’s option. All labor must be accomplished by a qualied gas appliance technician.

Duties Of The Owner

The appliance must be installed by a qualied installer and operated in accordance with the written instructions furnished

with the appliance.
Ready access to the appliance for service is the responsibility of the owner.
Travel, diagnostic costs and freight charges on warranted parts to and from the factory is the responsibility of the owner.

A bill of sale, cancelled check, or payment record should be kept to verify purchase date and establish warranty period.

What Is Not Covered

This warranty does not cover damages that might result from the use, misuse, or improper installation of this appliance.
This warranty does not cover claims that do not involve defective workmanship or materials.

This warranty does not cover unauthorized service or parts replacements will not be covered.

How To Get Service

To make a claim under this warranty, please have your receipt available and contact your installing dealer. Provide the

dealer with the model number, serial number, type of gas and purchase verication. The installing dealer is responsible for

providing service and will contact the factory to initiate any warranted parts replacements. Empire will make replacement
parts available at the factory. Shipping expenses are not covered.

If, after contacting your Empire dealer, service received has not been satisfactory, contact: Consumer Relations Depart­ment, Empire Comfort Systems Inc., P.O. Box 529, Belleville, Illinois 62222, or send an e-mail to [e-mail]
with “Consumer Relations” in the subject line.

Your Rights Under State Law

This warranty gives you specic legal rights, and you may also have other rights, which vary from state to state.

27297-5-0511 Page 43

EMPIRE

EMPIRE

Comfor t Systems

Empire Comfort Systems Inc.

918 Freeburg Ave. Belleville, IL 62220

If you have a general question about our products, please e-mail us
at [e-mail].
If you have a service or repair question, please contact your dealer.

www.empirecomfort.com

27297-5-0511Page 44