Superior DRT2040REP-C, DRT2045DEN-C, DRT2035TMP-C, DRT2035TEP-C, DRT2040RMP-C User Manual

Installation and Operation Instructions

CU

P900948-00

DRT2000-C Series Direct-Vent Gas Fireplaces

P/N 900948-00 REV. B 04/2019

Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 900948-02

Report No. F13-094

S

INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future
reference.

Models

DRT2035REN-C

DRT2035REP-C
DRT2035RMN-C
DRT2035RMP-C

DRT2035TEN-C

DRT2035TEP-C
DRT2035TMN-C
DRT2035TMP-C

DRT2040REN-C

DRT2040REP-C
DRT2040RMN-C
DRT2040RMP-C

DRT2040TEN-C

DRT2040TEP-C
DRT2040TMN-C
DRT2040TMP-C

Installateur : Laissez cette notice avec l’appareil.
Consommateur : Conservez cette notice pour
consultation ultérieure.

DRT2045DEN-C

DRT2045DEP-C
DRT2045DMN-C
DRT2045DMP-C

This appliance may be installed in an aftermarket permanently located, manufactured home (USA only)
or mobile home, where not prohibited by 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 certified kit
is used.

Cet appareil peut installé dans une maison préfabriquée (mobile) déjà installée à demeure, si les réglements
locaux le permettent. Ce appareil doit être utilisé uniquement avec le type de gaz indiqué sure la plaque
signalétique. Cet appareil ne peut être converti à d’autres gaz, sauf si une trousse de conversion est utilsée.

WARNING:

FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could
result in serious injury, death, or property damage.

- Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.

- WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use
any phone in your building.

• Leave the building immediately.

• 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
fire department.

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

AVERTISSEMENT:
RISQUED’INDENDIE OU D’EXPLOSION

Le non-respect Des avertissements de sécurité
pourrait d’entraîner des blessures graves, la mort
ou des dommages matériels.

- Ne pas entreposer ni utilizer d’essence ni d’autres
vapeurs ou liquides inflammables dans le voisinage
de cet appareil ou de tout autre appareil.

- QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• Ne pas tenter d’allumer d’appareil.

• Ne touchez à aucan interrupteur. Ne pas vous servir
des téléphones se trouvant dans le bâtiment où
vous trouvez.

• Sortez immédiatement de bâtiment.

• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions du
fournisseur.

• Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service des incindies.

- L’installation et l’entretien doivent être assurés par
un installateur ou un service d’entretien qualifié
ou par le fournisseur de gaz.

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

SAFETY AND YOUR FIREPLACE

See attached color flyer for proper color representation

General Information

900948-00B, 04/2019

DANGER

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.

Voir ci-joint tract pour une bonne représentation de la couleur

DANGER

L’écran pare-étincelles fourni avec ce foyer réduit le risque de brûlure en cas de
contact accidentel avec la vitre chaude et doit être installé pour la protection Des
enfants et Des personnes à risques.

HOT GLASS WILL

CAUSE BURNS.

DO NOT TOUCH GLASS

UNTIL COOLED.

NEVER ALLOW CHILDREN

TO TOUCH GLASS.

VITRE CHAUDE

RISQUE DE BRÛLURES.

NE TOUCHEZ PAS UNE VITRE

NON REFROIDIE.

NE LAISSEZ JAMAIS UN ENFANT

DE TOUCHER LA VITRE.

Vea el volante adjunto para la representación de color adecuado

PELIGRO

CAUSARÁ QUEMADURAS.

TOCAR EL VIDRIO CALIENTE.

LOS NIÑOS NUNCA DEBE

Se provee con este aparato una barrera de proteccion (malla), diseñada para reducir
el riesgo de quemaduras por contacto accidental con el vidrio caliente que debe estar
instalada para proteccion de infantes y otros individuos en riesgo.

2

EL VIDRIO CALIENTE

USTED NUNCA DEBE

TOCAR EL VIDRIO.

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

General Information

900948-00B, 04/2019

Safety and Your

Fireplace

All parts of your

IHP fireplace get

EXTREMELY HOT!

 To prevent severe burns

and injuries, do Not
remove the barrier on the
appliance which prevents
direct contact with the
glass.

 Follow the safety instructions below

and be sure everyone in your household
understands this burn hazard:

• The surfaces on your fireplace get
EXTREMELY HOT!

• The glass on the front of the
fireplace reaches EXTREMELY HIGH
temperatures and can cause severe
burns if touched.

• Keep children away from an operating
fireplace. Closely supervise children
in any room where a fireplace is
operating to prevent contact with glass.

• Keep clothing, furniture, gasoline, and
other flammable liquids away from the
fireplace.

• Even after the gas is turned off,
fireplace surfaces remain extremely
hot.

 Be sure to attach the enclosed Safety-

in-Operation Warnings where you

turn on your fireplace, to help remind
everyone of the dangers associated with
high temperatures

 Read Important Safety Information

(Page 5)

.

(Page 47)

.

La sécurité et

votre foyer

Toutes les parties de votre

foyer IHP deviennent

EXTRÊMEMENT CHAUDES !

 Afin d’éviter les brûlures

graves ou les blessures,
ne pas retirer l’écran de
protection de la foyer qui
empêche tout contact
direct avec la vitre.

 Suivez les instructions de sécurité

ci-dessous et veillez à ce que tous
les membres de votre famille soient
conscients du danger de brûlure
encouru :

• Les surfaces de votre foyer deviennent
EXTRÊMEMENT CHAUDES !

• La vitre située à l'avant du foyer atteint
des températures EXTRÊMEMENT
ÉLEVÉES et peut causer de graves
blessures en cas de contact.

• Tenez les enfants à l'écart du foyer
lorsqu'il fonctionne. Surveillez
attentivement les enfants dans les
pièces où un foyer est utilisé afin
d'éviter qu'ils ne soient en contact avec
la vitre.

• Tenez tous les vêtements, les meubles,
l'essence et tout autre liquide
inflammable à l'écart du foyer.

• Même après fermeture du gaz, les
surfaces du foyer restent extrêmement
chaudes.

 Veillez à coller les Étiquettes de mise

en garde relatives à la sécurité
d'utilisation à l'endroit où vous

utilisez le foyer, pour rappeler à tous
les utilisateurs les dangers liés aux

températures élevées



Lisez L’information de sûreté

importante (Page 5)

(Page 47)

.

.

Seguridad y su

chimenea

¡Todas las partes de la

chimenea IHP se ponen

MUY CALIENTES!

Para evitar quemaduras y lesiones

graves, no quite el protector de malla
o guardia de seguridad que evita el
contacto directo con el vidrio.

 Siga las instrucciones de seguridad

a continuación y asegúrese de que
todos en su hogar sepan acerca de este
peligro de quemadura:

• ¡Las superficies de la chimenea
estarán EXTREMADAMANTE
CALIENTES!!

• El vidrio delante de la
chimenea alcanza temperaturas
EXTREMADAMENTE ALTAS y puede
causar quemaduras graves si se toca.

• Mantenga a los niños alejados de
la chimenea en funcionamiento.
Supervise en forma cercana a los niños
en cualquier cuarto donde haya una
chimenea funcionando para impedir el
contacto con el vidrio.

• Mantenga la ropa, mobiliario, gasolina
y otros líquidos inflamables alejados
de la chimenea.

• Aún después de haber apagado el
gas, las superficies de la chimenea
permanecen extremadamente
calientes.

 Asegúrese de colocar las Etiquetas de

advertencia de seguridad de operación

en el lugar donde enciende la chimenea,
para que todos recuerden los peligros
asociados con las altas temperaturas

(Página 47)



Lea Información importante de

seguridad (Página 5).

.

[FRENCH][ENGLISH]

[SPANISH]

3

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

General Information

900948-00B, 04/2019

35” Log Set

40” / 45” Log Set

THANK YOU FOR YOUR PURCHASE. WE APPRECIATE YOUR BUSINESS!

Please carefully read and follow all instructions in this manual. Pay special attention to all warnings and safety information. Following
these safety, care, and operation instructions will help ensure many years of dependable and enjoyable service from your fireplace.

Please read and understand these instructions before installing, operating, or servicing this product.

We recommend that our
gas hearth products be
installed and serviced by
professionals who are
certied in the U.S. by the
National Fireplace Institute®
(NFI) as NFI Gas Specialists.

General Information

Safety and Your Fireplace...................................................................2

Important Safety Information ............................................................5

Fireplace Installation, Operation, and Maintenance Notices ............... 6

Packaging List ................................................................................... 8

Introduction ....................................................................................... 8

Gas Pressure ..................................................................................... 9

Requirements for the Commonwealth of Massachusetts ................11

Cold Climate Insulation .................................................................... 11

Manufactured Home Requirements ................................................. 12

Location ...........................................................................................12

Vent Termination Clearances ...........................................................13

Minimum Clearances to Combustibles ............................................15

Wall Finishes / Surrounds / Mantels ................................................16

Installation Preparation ....................................................................16

Installation

Installation Sequence ......................................................................17

Construct the Fireplace Framing ...................................................... 17

Prepare the Fireplace Top Spacers ...................................................19

Route the Gas Supply Line to the Fireplace .....................................19

Determine Vent Setup in the Combination Venting Unit ...................20

Rough in the Electrical Supply, if Needed ........................................21

Place the Fireplace in the Framing and Secure ................................21

Vent System Preparation .................................................................21

Install the Vent Restrictor (if necessary) ..........................................22

Install the Vent System ....................................................................25

Complete the Field Wiring ................................................................37

Connect the Gas Line ....................................................................... 39

Verify Proper Fireplace Operation ....................................................40

Optional Accessory: Install the Firebox Liners ................................. 54

Install the Logs, and Glowing Embers Media ................................... 42

Install the Glass Door ......................................................................42

Adjust the Air Shutter to Ensure Proper Flame Appearance ............. 42

Install the Hood ...............................................................................44

Barrier Replacement ........................................................................ 45

Install the Finishing Materials .......................................................... 46

Attach the Safety-in-Operation Warnings.........................................46

Installation Accessories ................................................................... 48

Gas Conversion Kits ........................................................................50

Operation

Operation ......................................................................................... 51

Accessing control compartment ...................................................... 53

Maintenance .................................................................................... 65

Accessory Components ................................................................... 68

Lighting Instructions .......................................................................71

Troubleshooting ...............................................................................75

Replacement Parts ..........................................................................76

Warranty ..........................................................................................79

4

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

IMPORTANT SAFETY INFORMATION

General Information

900948-00B, 04/2019

Important Safety Informa­tion

1. WARNING: Do not operate appliance
with the glass front removed, cracked
or broken.

2. Do not use this appliance if any part
has been under water. Immediately
call a qualified service technician to
inspect the appliance and to replace
any part of the control system and
any gas control which has been under
water.

3. Due to high temperatures, the appli­ance should be located out of traffic
and away from furniture and draperies.

4. Children and adults should be alerted
to the hazards of high surface tem­perature and should stay away to avoid
burns or clothing ignition.

5. Clothing or other flammable material
should not be placed on or near the
appliance.

6. 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 fireplace
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.

7. Any safety screen, guard or barrier
removed for servicing an appliance
must be replaced prior to operating
the appliance.

8. Installation and repair should be done
by a qualified service person. The ap­pliance should be inspected before use
and at least annually by a professional
service person. More frequent clean­ing may be required due to excessive
lint from carpeting, bedding material,
et cetera. It is imperative that control
compartments, burners, and circulat­ing air passageways of the appliance
be kept clean. See maintenance in­structions on Page 67.

L’information de sûreté
importante

1. AVERTISSEMENT. Ne pas utiliser l’appareil
si le panneau frontal en verre n’est pas en
place, est craqué ou brisé.

2. Ne pas se servir de cet appareil s’il a été
plongé dans l’eau, même partiellement.
Faire inspecter l'appareil par un technicien
qualifié et remplacer toute partie du systéme
de contrôle et toute commande qui ont été
plongées dans l'eau.

3. En raison des températures élevées,
l’appareil devrait être installé dans un en
droit où il y a peu de circulation et loin du
mobilier et des tentures.

4. Les enfants et les adultes devraient être
informés des dangers que posent les tem
pératures de surface élevées et se tenir à
distance afin d’éviter des brûlures ou que
leurs vêtements ne s’enflamment.

5. On ne devrait pas placer de vêtements
ni d’autres matières inflammables sur
l’appareil ni à proximité.

6. Les jeunes enfants devraient être surveillés
étroitement lorsqu’ils se trouvent dans la
même pièce que l’appareil. Les tout petits,
les jeunes enfants ou les adultes peuvent
subir des brûlures s’ils viennent en contact
avec la surface chaude. Il est recommandé
d’installer une barrière physique si des
personnes à risques habitent la maison.
Pour empêcher l’accès à un foyer ou à un
poêle, installez une barrière de sécurité ;
cette mesure empêchera les tout petits, les
jeunes enfants et toute autre personne à ris
que d’avoir accès à la pièce et aux surfaces
chaudes.

7. Tout écran ou protecteur retiré pour per
mettre l’entretien de l’appareil doit être
remis en place avant de mettre l’appareil
en marche.

8. L’installation et la réparation devrait être
confiées à un technicien qualifié. L’appareil
devrait faire l’objet d’une inspection par un
technicien professionnel avant d’être utilisé
et au moins une fois l’an par la suite. Des
nettoyages plus fréquents peuvent être
nécessaires si les tapis, la literie, et cetera
produisent une quantité importante de pous
sière. Il est essentiel que les compartiments
abritant les commandes, les brûleurs et les
conduits de circulation d’air de l’appareil
soient tenus propres. Voyez les instructions
d’entretien à la Page 67.

-

-

-

-

-

Información importante de
seguridad

1. ADVERTENCIA: No opere el artefacto con el
frente de vidrio quitado, agrietado o roto.

2. No use este artefacto si alguna de sus partes
ha estado bajo agua. Llame de inmediato
a un técnico de servicio calificado para
que inspeccione el artefacto y reemplace
cualquier parte del sistema de control y
cualquier control de gas que haya estado
bajo agua.

3. Debido a las altas temperaturas, el artefacto
debe situarse fuera de las áreas de tráfico y
lejos del mobiliario y cortinas.

4. Se debe alertar a los niños y adultos sobre
los peligros de las altas temperaturas en la
superficie y que se mantengan alejados para
evitar quemaduras o ignición de la ropa.

5. No debe colocarse ropa u otros materiales
inflamables sobre y cerca del artefacto.

6. Se debe supervisar de cerca a los niños
cuando estén en el mismo cuarto que el
artefacto. Los niños pequeños, los jóvenes
y otras personas pueden ser susceptibles
a quemaduras por contacto accidental. Se
recomienda instalar una barrera física si hay
personas en riesgo en la casa. Para restringir
el acceso a una chimenea o estufa, instale
una puerta de seguridad ajustable para
mantener a los niños pequeños, jóvenes y
otras personas en riesgo fuera del cuarto y
lejos de las superficies calientes.

7. Cualquier malla o resguardo de seguridad
quitado para dar servicio a un artefacto, debe
reinstalarse antes de operar el artefacto.

8. Una persona de servicio competente debe
realizar la instalación y reparación. Una
persona de servicio profesional debe
inspeccionar el artefacto antes de usar al
menos una vez por año. Se puede requerir
limpieza más frecuente debido a la pelusa
excesiva del alfombrado, del material de
cobijas, etc. Es imprescindible mantener
limpios los compartimientos de control, los
quemadores y los pasajes de circulación del
aire del artefacto. Ver las instrucciones de
mantenimiento en la página 67.

[English]

[French]

[Spanish]

5

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

APPLIANCE INSTALLATION, SERVICE, AND MAINTENANCE NOTICES

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause injury or
property damage. Refer to this manual. For assistance or additional information consult a
qualified installer, service agency or the gas supplier.

AVERTISSEMENT

Une installation, un réglage,une modification, une réparation ou un entretien mal effectué
peut causer des dommages matériels ou des blessures. Voir la notice de l’utilisateur qui
accompagne l’appareil. Pour de l’aide ou des renseignements supplémentaires, consultez
un installateur, un technicien agréé ou le fournisseur de gaz.

Only trim kit(s) supplied by the manufacturer shall be used in the installation of this fireplace.

Seules des portes certifiées pour cet appareil doivent être utilisées.

These appliances must not be connected to a chimney or flue serving a separate solid fuel
burning appliance.

General Information

900948-00B, 04/2019

Any change to this appliance and/or its operating controls is dangerous. Improper installation
or use of this appliance can cause serious injury or death from fire, burns, explosion or
carbon monoxide poisoning.

CARBON MONOXIDE POISONING: Early signs of carbon monoxide poisoning are similar to
the flu with headaches, dizziness and/or nausea. If you have these signs, obtain fresh air
immediately. Turn off the gas supply to the appliance and have it serviced by a qualified
professional, as it may not be operating correctly. Some people are more affected by carbon
monoxide than others, including pregnant women, people with heart or lung disease or
anemia, those under the influence of alcohol, and those at high altitudes.

Turn off gas and electrical power to the appliance and allow it to cool before cleaning or
servicing the appliance.

If the barrier becomes damaged, the barrier shall be replaced with the manufacturer’s barrier
for this appliance.

Si l’écran est endommagé, il doit être remplacé par celui fournit par le fabricant de cet
appareil.

For use with barrier(s) Part No(s). F1839 (35” Models), F1840 (40” Models), and F1903 (45”
Models). Follow installation instructions.

Reinstall any barrier removed before operating the appliance. The barrier is designed to
reduce the risk of burns from hot glass. Do not operate the appliance without the barrier
installed.

6

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

APPLIANCE OPERATION NOTICES

These fireplaces are vented gas appliances. Do not burn wood or other material in these
appliances.

These appliances are designed to operate on natural gas or propane gas only. The use of
other fuels or combinations of fuels will degrade the performance of this system and may be
dangerous.

Provide adequate clearances around air openings and adequate accessibility clearance for
service and proper operation. Never obstruct the front openings of the appliance.

These appliances are designed as supplemental heaters. Therefore, it is advisable to have an
alternate primary heat source when installed in a dwelling.

WARRANTY INFORMATION

Your gas appliance is covered by a limited lifetime warranty. You will find a copy of the
warranty accompanying this manual. Please read the warranty to be familiar with its
coverage.

General Information

900948-00B, 04/2019

Retain this manual. File it with your other documents for future reference.

Failure to comply with the installation and operating instructions provided will result in an
improperly installed and operating appliance, voiding its warranty.

Do not attempt to alter or modify the construction of the appliance or its components. Any
modification or alteration may void the warranty, certification, and listings of this unit.

IMPORTANT SAFETY AND WARNING INFORMATION

Hot while in operation. Do not touch. Severe Burns may result. Keep children, clothing
furniture, gasoline and other liquids having flammable vapors away.

L’appareil est chaud lorsqu’il fonctionne. Ne pas toucher l’appareil. Risque de brûlures
graves. Surveiller les enfants. Garder les vêtements, les meubles, l’essence ou autres
liquides produisant des vapeur inflammables loin de l’appareil.

CAUTION

ATTENTION

WARNING

This product can expose you to chemicals including Carbon Black, which is known to the
State of California to cause cancer, and Carbon Monoxide, which is known to the State of
California to cause birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov

7

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

INSTALLATION

PACKAGING

All models include

The assembled vented gas fireplace heater is packaged with:

• Literature Kit (bag in bottom compartment containing Installation and Operation Instructions (this manual), Hot
Glass Safety Flyer, and Safety-In-Operation Warning Labels)

• 1 Log Set

• 1 Bag of Glowing Embers (in bottom compartment)

• 15 feet of two conductor wire

INTRODUCTION

These vented gas fireplace heaters are sealed combustion, air-circulating gas fireplaces designed for residential and
commercial applications.

Millivolt fireplaces have a millivolt gas control valve with piezo ignition system. If a blower will be installed, electrical
power must be provided at the time of fireplace installation.

Electronic fireplaces are designed with an electronic intermittent pilot ignition system. External electrical power is
required to operate these units. In the event of a power outage, four (4) AA batteries (in battery holder) provide
backup power for fireplace operation (excluding the blower).

NOTE: Installation and repair should be done by a qualified service person. The fireplace should be inspected before
use and at least annually by a professional service person. More frequent cleaning may be required due to excessive
lint from carpeting, bedding material, etcetera. It is imperative that control compartment, burners and circulating air
passageways of the fireplace be kept clean.

Remarqué : L’installation et la réparation devrait être confiées à un technicien qualifié. L’appareil devrait faire
l’objet d’une inspection par un technicien professionnel avant d’être utilisé et au moins une fois l’an par la suite.
Des nettoyages plus fréquents peuvent être nécessaires si les tapis, la literie, et cetera produisent une quantité
importante de pous-sière. Il est essentiel que les compartiments abritant les commandes, les brûleurs et les
conduits de circulation d’air de l’appareil soient tenus propres.

NOTE: Diagrams and illustrations are not necessarily shown to scale.

General Information

900948-00B, 04/2019

Approved Vent Components

These fireplaces are designed, tested and listed for operation and installation with the following vent components
only:

• Secure Vent

• Secure Flex

• Z-FLEX
Limited.

Use only the correct size venting (4-1/2” inner and 7-1/2” outer).
These approved vent system components are labeled for identification. DO NOT use any other manufacturer’s vent

components with these fireplaces.

Codes and Standards

These fireplaces comply with National Safety Standards and are tested and listed by PFS Corporation (Report No.
F13-094) to ANSI Z21.88 (in Canada, CSA-2.33), and CAN/CGA-2.17-M91 in both USA and Canada, as vented gas
fireplace heaters.

These fireplaces are listed for installation in bedrooms and manufactured homes.
The installation must conform to local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI

Z223.1/NFPA 54—latest edition (In Canada, the current CAN/CGA-B149.1 installation code).
The fireplace, when installed, must be electrically grounded and wired in accordance with local codes or, in the

absence of local codes, with the National Electrical Code, ANSI/NFPA 70—latest edition, or the Canadian Electrical
Code, CSA C22.1—latest edition.

®

Direct-Vent System Components,

®

Flexible Vent Components, and

®

Model GA Venting Systems listed to UL1777 and ULCS635 manufactured by Flexmaster Canada

8

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

BTU Input

Table 1 - Input Rate (BTU/HR), Gas Valves

Table 2 - Thermal Efficiency (%)

* AFUE is a measurement of the US Department of Energy,
** Complies with CSA P.4.1-2015 “Testing Method for Measuring Annual Fireplace

Efficiency. P4 (EnerGuide) is a measurement of the Canadian Office of Energy Efficiency.

Efficiencies are based on Normal input operation.

General Information

900948-00B, 04/2019

Models

35” Models 17,000 13,000 17,000 13,000
40” Models 20,000 16,000 18,500 14,000
45” Models 22,000 18,000 21,000 16,000

Model

35” Models 68.2 67.9 64.6 67.8
40” Models 70.3 71.5 62.4 62.4
45” Models 71.9 71.8 62.7 63.6

High Rate Low Rate High Rate Low Rate

Natural Propane Natural Propane

Natural Gas Propane Gas

Millivolt & Electronic

AFUE * P4 **

Gas Pressure

Based on CSA P.4.1-2015

Table 3 - Inlet Line Gas Pressures

Fuel Minimum Maximum

Natural Gas 5” WC / (1.25 kPa) 10.5” WC / (2.61 kPa)

Propane 11.0” WC / (2.74 kPa) 13.0” WC / (3.23 kPa)

Table 4 - Manifold Outlet Gas Supply Pressure

Fuel Pressure

Natural Gas 3.5” WC / (0.87 kPa)

Propane 10.0” WC / (2.49 kPa)

Test gauge connections are provided on the front of the millivolt gas control valve (identified IN for the inlet and OUT for
the manifold side). The control valves have a 3/8” (10 mm) NPT thread inlet and outlet side of the valve (Figure 1).

Figure 1A - Millivolt Gas Valve Figure 1B - Electronic Gas Valve

Inlet 3/8” NPT

Outlet Pressure
Tap

Outlet 3/8”

Inlet Pressure
Tap

NPT

Pilot Outlet
7/16” UNS

SIT - Millivolt

Propane tanks are at pressures that will cause damage to valve components. Verify that the tanks have step down
regulators to reduce the pressure to safe levels.

The appliance and its appliance main gas 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 psi (3.5 kPa).

The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during
any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).

9

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

The appliance and its appliance main gas 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 psi (3.5 kPa).

The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during
any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).

Orifice Sizes—Sea Level to High Altitude

These fireplaces are tested and approved for installation at elevations of 0 - 4500 ft (0 - 1372 m) above sea level
using the standard burner orifice sizes (Table 5). For elevations above 4500 ft, contact your gas supplier or qualified
service technician.

Table 5 - Burner Orifice Sizes, Elevation 0 - 4500 ft ( 0 - 1372 m)

Model Natural Gas - drill size * Propane - drill size *

35” Models (0.0745”), Cat. No. F3940 #56 (0.046”), Cat. No. 62L37
40” Models #45 (0.082”), Cat. No. 39L66 (0.049”), Cat. No. F3941
45” Models #44 (0.086”), Cat. No. 60J80 #55 (0.052”), Cat. No. 19L52

* Standard size installed at factory

Installation

900948-00B, 04/2019

Deration

At elevations above 4500 ft, the amount of BTU fuel value delivered must be reduced by either:

• Using gas that has been derated by the gas company.

• Changing the burner orifice to a smaller size as regulated by the local authorities having jurisdiction and by the
(USA) National Fuel Gas Code NFPA 54/ANSI Z223.1—latest edition or, in Canada, the CAN/CGA-B149.1 codes—
latest edition.

NOTE: Flame breadth, height and width will diminish 4% for every 1,000 ft of altitude.

IN CANADA—CAN/CGA-2.17-M91 (HIGH ALTITUDE):
THE CONVERSION SHALL BE CARRIED OUT BY A MANUFACTURER’S AUTHORIZED REPRESENTATIVE,

IN ACCORDANCE WITH THE REQUIREMENTS OF THE MANUFACTURER, PROVINCIAL OR TERRITORIAL
AUTHORITIES HAVING JURISDICTION AND IN ACCORDANCE WITH THE REQUIREMENTS OF THE CAN/
CGA-B149.1 OR CAN/CGA-B149.2 INSTALLATION CODES.

10

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

COMMONWEALTH OF MASSACHUSETTS REQUIREMENTS

These appliances are approved for installation in the US state of Massachusetts if the following additional
requirements are met:

• Install this appliance in accordance with Massachusetts Rules and Regulations 248 C.M.R. Sections 4.00
through 8.00.

• Installation and repair must be done by a plumber or gas fitter licensed in the Commonwealth of Massachusetts.

• The flexible gas line connector used shall not exceed 36 inches (92 centimeters) in length.

• The individual manual shut-off must be a T-handle type valve.

Massachusetts Horizontal Vent Requirements

In the Commonwealth of Massachusetts, horizontal terminations installed less than seven (7) feet above the finished
grade must comply with the following additional requirements:

• A hard wired carbon monoxide detector with an alarm and battery back-up must be installed on the floor level
where the gas fireplace is installed. The carbon monoxide detector must comply with NFPA 720, be ANSI/UL
2034 listed and be ISA certified.

• A metal or plastic identification plate must be permanently mounted to the exterior of the building at a minimum
height of eight (8) feet above grade and be directly in line with the horizontal termination. The sign must
read, in print size no less than one-half (1/2) inch in size, GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL
OBSTRUCTIONS.

Installation

900948-00B, 04/2019

COLD CLIMATE INSULATION

For cold climate installations, seal all cracks around your fireplace with noncombustible material and wherever cold
air could enter the room. It is especially important to insulate outside chase cavity between studs and under floor on
which fireplace rests, if floor is above ground level. Gas line holes and other openings should be caulked or stuffed
with unfaced fiberglass insulation.

NOTE: Do not use loose, or blown-in insulation in the cavity surrounding the fireplace.
If the fireplace is being installed on a cement slab in cold climates, a sheet of plywood or other raised platform can

be placed underneath to prevent conduction of cold transferring to the fireplace and into the room. It also helps to
seal inside surfaces and tape for maximum air tightness and caulk firestops.

11

Innovative Hearth Products

(Rear Vent Application)

VERTICAL VENT

(Rear Vent Application without a chase)

HORIZONTAL VENT

DRT2000-C Series Direct-Vent Gas Fireplaces

MANUFACTURED HOME REQUIREMENTS

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

Cet appareil peut être installé dans une maison préfabriquée (mobile) déjà installée à demeure si les règlements
locaux le permettent.

This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for
use with other gases, unless a certified kit is used.

Cet appareil doit être utilisé uniquement avec le type de gaz indiqué sur la plaque signalétique. Cet appareil ne
peut être converti à d’autres gaz, sauf si une trousse de conversion est utilisée.

Ensure that the cross members are not cut or weakened during installation. The structural
integrity of the manufactured home floor, wall, and ceiling / roof must be maintained.

This appliance must be grounded to the chassis of the manufactured home in accordance
with local codes or in the absence of local codes, with the National Electrical Code ANSI /
NFPA 70—latest edition or the Canadian Electrical Code CSA C22.1—latest edition.

Installation

900948-00B, 04/2019

CAUTION

CAUTION

LOCATION

In selecting the location, the aesthetic and functional use of the fireplace are primary concerns. However, vent
system routing to the exterior and access to the fuel supply are also important.

Due to high temperatures, the fireplace should be located out of traffic and away from furniture and draperies.

En raison des températures élevées, l’appareil devrait être installé dans un endroit où il y a peu de
circulation et loin du mobilier et des tentures.

The location should also be free of electrical, plumbing or other heating/air conditioning ducting.
These direct-vent fireplaces are uniquely suited for installations requiring a utility shelf positioned directly above the

fireplace. Utility shelves like these are commonly used for locating television sets and decorative plants.

Be aware that this is a heat producing fireplace. Objects placed above the unit are exposed to elevated temperatures.
Do not insulate the space between the fireplace and the area above it.

The minimum height from the base of the fireplace to the underside of combustible materials used to construct a
utility shelf in this fashion is shown in Table 9.

Figure 2 - Typical Locations and Venting

Rear Vent

Top Vent

Rear Vent

Horizontal Vent

(Rear Vent with chase)

Horizontal Vent

(Rear Vent without chase)

12

Top Vent

Top Vent

Recessed

Installation

Top Vent

NOTE: Installations against side walls must meet requirements
shown in Figure 5, Page 16.

Top Vent Top Vent

Vertical Vent

(Rear Vent)

Horizontal Vent

(Top Vent)

Vertical Vent

(Top Vent)

Innovative Hearth Products

12

X

Roof pitch is X/12

2 ft

minimum

2 ft minimum

Lowest

discharge

opening

H*

*H = minimum height from roof to

lowest discharge opening of vent

Horizontal overhang

Vertical
wall

Vent

termination

Storm collar

Concentric

vent pipe

Flashing

1” (26mm) minimum
clearance to combustibles

TERMINATION HEIGHTS FOR VENTS ABOVE

FLAT OR SLOPED ROOFS

DRT2000-C Series Direct-Vent Gas Fireplaces

VENT TERMINATION CLEARANCES

These instructions should be used as a guideline and do not supersede local codes in any way. Install venting with the
most restrictive requirements as outlined in these instructions, local codes, these instructions, the current National
Fuel Gas Code (ANSI Z223.1/NFPA 54) in the USA or the current standards of CAN/CGA-B149.1 in Canada.

Vertical Vent Termination Clearances

Terminate multiple vent terminations according to the installation codes listed above and Figure 3.

Figure 3 - Multiple Terminations

Installation

900948-00B, 04/2019

12”

(305 mm)

minimum

6”

(153 mm)

Terminate single vent caps relative to building components according to Table 6.

Table 6 - Termination Heights for Vents above Flat or Sloped Roofs (NFPA 54 / ANSI Z223.1)—Gas Vent Rule

Roof Pitch Termination Height *

Flat to 6/12 1.0 ft (0.3 m)
6/12 to 7/12 1.25 ft (0.38 m)
7/12 to 8/12 1.5 ft (0.46 m)
8/12 to 9/12 2.0 ft (0.61 m)

9/12 to 10/12 2.5 ft (0.76 m)
10/12 to 11/12 3.25 ft (0.99 m)
11/12 to 12/12 4.0 ft (1.22 m)
12/12 to 14/12 5.0 ft (1.52 m)
14/12 to 16/12 6.0 ft (1.83 m)
16/12 to 18/12 7.0 ft (2.13 m)
18/12 to 20/12 7.5 ft (2.29 m)
20/12 to 21/12 8.0 ft (2.44 m)

Horizontal Vent Termination Clearances

The horizontal vent termination must have a minimum of 6” (152 mm) clearance to any overhead combustible
projection of 2-1/2” (64 mm) or less (Figure 4). For projections exceeding 2-1/2” (64 mm) (Figure 4). For additional
vent location restrictions refer to Table 7.

All horizontal terminations may be located as close as 6” (152mm) to any (non-combustible and combustible)
exterior sidewall. This distance may be decreased to 2” (51mm) for noncombustible exterior sidewalls with all
approved terminations (Table 7).

Figure 4 - Horizontal Vent Termination Clearances

Combustible projection

2-1/2” or less in length

soffit - 12”

(305 mm)

6” (152mm)

Termination kit

6”

Termination kit

Combustible projection

greater than 2-1/2” in length

Ventilated

soffit - 18”

(457 mm)

Unventilated

13

Innovative Hearth Products

(TERMINATION PROHIBITED)

Inside Corner

Outside Corner Recessed Location

DRT2000-C Series Direct-Vent Gas Fireplaces

Table 7 - Horizontal vent termination clearances for buildings with combustible and noncumbustible exteriors

D

E

V

B

L

C

F

V

B

TERMINATION CAP

V

Fixed

Closed

Openable

V

Openable

V

B

A

AIR SUPPLY INLET

X

Fixed

Closed

J

B

V

B

X

G

GAS METER RESTRICTED AREA

A Clearance above grade, veranda, porch, desk, or balcony 12” (300 mm) ** 12” (300 mm) *
B Clearance to window or door that may be opened 6” (150 mm)

C Clearance to permanently closed window 9” (229 mm)

D Vertical clearance to ventilated soffit located above the

termination within a horizontal distance of 18” (458 mm)

E Clearance to unventilated soffit 12” (305 mm) 12” (305 mm)

See Table 6

H

G

V

V

F

I

G

M

V

K

Balcony with No Side WallVBalcony with Perpendicular Side Wall

G

V

G

V

X

A

M

V

M

U.S. Installation ** Canadian Installation *

6” (150 mm)

for fireplaces < 10,000 Btu/h (3 kW),
9” (230 mm)

for fireplaces > 10,000 Btu/h (3 kW), and < 50,000 Btu/h (15

for fireplaces < 10,000 Btu/h (3 kW),
12” (300 mm)

for fireplaces > 10,000 Btu/h (3 kW)

kW),
12” (300 mm)

for fireplaces > 50,000 Btu/h (15 kW) **

12” (305 mm)

recommended to prevent window condensation

recommended to prevent window
condensation

18” (458 mm) 18” (458 mm)

Installation

900948-00B, 04/2019

P

N

Q

O

V

F Clearance to outside corner 5” (127 mm)

minimum

5” (127 mm)
minimum

G Clearance to inside corner 6” (152 mm) minimum 6” (152 mm) minimum
H Clearance to each inside of center line extended above

meter / regulator assembly

36” (910 mm)
within a height of 15 ft above the meter / regulator assembly **

36” (910 mm)
within a height of 15 ft above the meter /
regulator assembly *

I Clearance to service regulator vent outlet 36” (910 mm)** 36” (910 mm)*

J Clearance to nonmechanical air supply inlet to building or

the combustion air inlet to any other fireplace

6” (150 mm)
for fireplaces < 10,000 Btu/h (3 kW),

9” (230 mm)
for fireplaces > 10,000 Btu/h (3 kW) and < 50,000 Btu/h (15 kW),

6” (150 mm)
for fireplaces < 10,000 Btu/h (3 kW),

12” (300 mm)
for fireplaces > 10,000 Btu/h (3 kW)

12” (300 mm)
for fireplaces > 50,000 Btu/h (15 kW)**

K Clearance to a mechanical air supply inlet 36” (910 mm) above if within 10 ft (3 m) horizontally ** 72” (1830 mm) *

L Clearance above paved sidewalk or paved driveway located

84” (2130 mm) ‡ 84” (2130 mm) ‡

on public property

M Clearance under veranda, porch, deck or balcony 12” (300 mm) *‡ 12” (300 mm) *‡

N Depth of alcove (maximum) 72” (1830 mm) ** 72” (1830 mm) *
O Clearance to termination (alcove) 6” (15.2 mm) ** 6” (15.2 mm)*
P Width of alcove (minimum) 36” (910 mm) ** 36” (910 mm) *
Q Clearance to combustible above (alcove) 18” (457 mm) ** 18” (457 mm) *

*

In accordance with the current CAN/CGA-B149.1 National Gas And Propane Installation Code

**

In accordance with the current ANSI Z223.1/NFPA 54 National Fuel Gas Codes

‡

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

*‡

Only permitted if veranda, porch, deck, or balcony is fully-open on a minimum two sides beneath the floor

14

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

Installation

900948-00B, 04/2019

MINIMUM CLEARANCES TO COMBUSTIBLES
Fireplace And Vent Clearances

The fireplace is approved with zero clearance to combustible materials
on all sides (Table 8), with the following exception: The unit may not
be recessed (allowance made for mantel legs / side trim in Figure 5).
When the unit is installed with one side flush with a wall, the wall on the
other side of the unit must not extend beyond the front edge of the unit
(Figure 5).

The fireplace must be mounted on a fully supported base extending
the full width and depth of the unit. The fireplace may be located on
or near conventional construction materials. However, if installed on
combustible materials, such as carpeting, vinyl tile or other combustible
material other than wood flooring, the appliance shall be installed on a
metal or wood panel extending the full width and depth of the appliance.

Table 8 - Minimum Clearances *

Back ***

Sides

Top Standoffs 0” (0 mm) to top standoffs

Floor 0” (0 mm)

From Bottom of Unit to Ceiling 64” (1626 mm)

Vent

Front Service Clearance—

clearance immediately in front of

3” (77 mm) above any horizontal/inclined vent component.

*
** See Page 21 for clearance requirements to the nailing flange

located at each side of the unit and any screw heads adjacent to it.

*** When in top vent mode; no combustible material shall be allowed to

contact the rear flue cap/cover.

viewing area(s)

1-1/2” (38mm) to wrapper

0” (0 mm) to Spacers

1/2” (13 mm) to wrapper
0” (0 mm) to Spacers **

3” (77 mm)—Top *

1” (26 mm)—Sides and Bottom

36” (914 mm)

Hearth Extension

A hearth extension is not required with this fireplace. Any hearth extension used is for appearance only and does not have to conform to
standard hearth extension installation requirements.

Shelf Height

To provide for the lowest possible shelf surface, use the rear vent model. For top vent models, the venting attached to the top vent should
be routed in a way to minimize obstructions to the space above the fireplace. Do not insulate the space between the fireplace and the
area above it (Tables 9A anc 9B). The minimum height from the base of the fireplace to the underside of combustible materials used to
construct a utility shelf in this fashion is shown in Tables 9A and 9B.

Table 9A- Combustible Shelf Height—Top Vent

Top Vent with one 90° Elbow *

Model

35” Models 47” (1194 mm) 49” (1245 mm)
40” Models 52” (1321 mm) 54” (1372 mm)
45” Models 52” (1321 mm) 54” (1372 mm)

Secure Vent

(using rigid elbow)

®

Secure Flex

(using flex elbow)

CLEARANCES TO COMBUSTIBLES MUST BE MAINTAINED:

No combustible materials or insulation is permitted in the shaded area
between the appliance and the shelf above it.

WARNING: CRITICAL INSTALLATION INFORMATION THAT IF NOT FOL-

LOWED CAN RESULT IN A SAFETY HAZARD!

Table 9B - Combustible Shelf Height—Rear Vent

Rear Vent with two 90° Elbows **

Model

35” Models 36-1/4” (921 mm) 36-1/4” (921 mm)
40” Models 40-1/2” (1029 mm) 40-1/2” (1029 mm)
45” Models 45-1/2” (1156 mm) 45-1/2” (1156 mm)

Secure Vent

(using rigid elbow)

®

Secure Flex

(using flex elbow)

CLEARANCES TO COMBUSTIBLES MUST BE MAINTAINED:

No combustible materials or insulation is permitted in the shaded area
between the appliance and the shelf above it.

WARNING: CRITICAL INSTALLATION INFORMATION THAT IF NOT FOL-

LOWED CAN RESULT IN A SAFETY HAZARD!

®

Shelf Height

(see table)

®

≥3” clearance from shelf to

top of fireplace and/or vent

pipe, whichever is higher

Shelf Height

(see table)

* Includes 3” clearance to combustibles (required above vent components)
** In alternative, Rear Vent applications, Top Vent will be sealed as detailed in Installation Sequence Step 4 (Page 20).

15

Innovative Hearth Products

mantel legs may

At 6” minimu
side wall clearance,
a combustible wall
can project to an
length

DRT2000-C Series Direct-Vent Gas Fireplaces

Installation

900948-00B, 04/2019

Figure 5 - Combustible Side Clearances

m

45

y

o

.

6”

(152 mm)

Wall Finishes / Surrounds / Mantels

NOTE: Combustible wall finish materials and/or surround materials must not be allowed to encroach the area
defined by the fireplace front face (black sheet metal). Non-combustible material up to 6 inches in depth, such as
surrounds may be positioned in front of or overlapping the fireplace face (Figure 36, Page 46).

Non-combustible materials, such as surrounds and other fireplace trim, may be installed on the fireplace face, but they
must not cover any portion of the removable glass panel or impede the removal or installation of facade.

Vertical installation clearances to combustible mantels vary according to the depth of the mantel (Figure 6). Mantels
constructed of non-combustible materials may be installed at any height above the fireplace opening. However, do
not allow anything to hang below the fireplace hood.

Minimum clearance requirements include any projections such as shelves, window sills, mantels, etc. above the
fireplace.

3-1/2”

(89 mm)

Top View of

Fireplace

Combustible Materials
Allowed In Shaded Area
“Safe Zone”

Combustible Walls
shown in dark gray

Combustible
project beyond either side
of the fireplace opening
as long as they are kept
within the shaded area
illustrated here.

Figure 6 - Mantel Height

Mantel depth

16 (407)

14 (356)

12 (305)

10 (254)

8 (203)

6 (153)

12

(305)

in. (mm)

(203)

10

(254)

8

6

(152)

4

(102)

Hood

2

(51)

Fireplace

INSTALLATION PREPARATION

16

NOTE: To avoid heat-related finish damage, we recommend the use of high temperature paint (rated 175° F or higher) on

the underside of the mantel.

The fireplace is shipped with all gas controls and components installed and pre-wired. Before installing the fireplace,
follow these steps:

1. Remove the shipping carton, and retain the front of the carton (used to protect the fireplace during construction).

2. Remove the shipping pad, exposing the front glass door.

3. Remove the glass door (Pages 57 - 58).
NOTE: Barrier must be removed to remove the door. Barrier must be protected from damage and construction dust

and dirt.
NOTE: Place the glass door on the shipping carton to protect its surface.

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

INSTALLATION SEQUENCE

The typical sequence of installation is outlined below; however, each installation is unique and may result in
variations to the steps described.

See the pages referenced in the following steps for detailed instructions.
Check local codes for more restrictive installation. The more restrictive installation for clearances must be used.

Framing

1. Construct the Fireplace Framing (Page 17).

2. Prepare the Fireplace Top Spacers (Page 19).

3. Route the Gas Supply Line to the Fireplace (Page 19).

4. Determine Venting in Combination Venting Fireplaces (Page 20).

5. Rough in the Electrical Supply, if Needed (Page 21).

6. Place the Fireplace in the Framing and Secure (Page 21).

Venting

7. Select a Horizontal or Vertical Vent System (Page 21).

8. Install the Vent Restrictor (if necessary) (Page 22).

9. Connecting the Vent Pipe (Page 23).

10. Install the Vent System (Page 25).

Electrical Connection

11. Complete the Field Wiring (Page 37).

Gas Connection

12. Connect the Gas Line (Page 39).

13. Verify Proper Fireplace Operation (Page 40).

Installation

900948-00B, 04/2019

Finishing

14. Optional Accessory (see Page 68 for ordering information): Install the Firebox Liners (Page 43).

15. Install the Logs, and Glowing Embers (Page 43).

16. Install the Glass Door (Page 43).

17. Adjust the Air Shutter to Ensure Proper Flame Appearance (Page 43).

18. Install the Hood (Page 44).

19. Reinstall the Barrier (Page 45).

20. Install the Finishing Materials (Page 46).

21. Attach the Safety-in-Operation Warning Labels (Page 46).

1. Construct the Fireplace Framing

1. Frame the fireplace as illustrated in Table 10. For corner framing installations, use Table 11. All framing details

must allow for a minimum clearance to combustible framing members as shown in Table 8.

2. If the fireplace is to be elevated above floor level, a solid continuous platform must be constructed below the fireplace.
NOTE: Headers may be in direct contact with the fireplace top standoff spacers when they are bent up vertically,

maintaining the 4” clearance to the fireplace top, but must not be supported by them or notched to fit around them.
All construction above the fireplace must be self-supporting. DO NOT use the fireplace for structural support.

17

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

Table 10 - Fireplace Framing Specifications

Installation

900948-00B, 04/2019

Model A * B C D E

35” Models

40” Models

45” Models

35-7/8

(911)

40-7/8
(1038)

45-7/8
(1165)

36-1/4

(920)

41-1/4
(1148)

41-1/4
(1148)

38-3/4

(984)

43-3/4
(1111)

43-3/4
(1111)

18-1/2

(470)

18-1/2

(470)

18-1/2

(470)

23-3/8

(594)

28-1/4

(717)

28-1/4

(717)

NOTE: Dimension “D” is the
required framing depth when
the finish material (drywall)
thickness is 1/2” (13mm).

Vent Framing—Top Vent

with One 90° Elbow

C = Minimum height of top vent installations
E = Minimum height of rear vent installations

B

* Minimum opening size; additional 1/8” per side is recommended.
NOTE: Framing specifications do NOT apply for flexible venting.

When using flexible venting, refer to the kit requirements for framing
specifications.

NOTE: When in top vent mode - No combustible material shall be
allowed to contact the rear flue cap/cover.

Inches (millimeters)

Table 11 - Fireplace Framing Specifications - Corner Installation with Horizontal Termination

Model A B C D E F

35”

40”

45”

35-7/8

(911)

40-7/8

(1038)
45-7/8

(1165)

59-1/2
(1511)

63-7/8
(1622)

70-3/8
(1788)

42-1/8

(1070)

45-3/8

(1153)

49-3/4

(1264)

30-1/4

(768)

33-1/4

(845)

35-1/4

(895)

14-1/4

(362)

15-7/8

(403)

17-1/2

(445)

6-5/8
(168)

8-1/2

(216)

10-1/4

(260)

Front to rear with 1” distance to wall

C

1/2 A

Framing
construction to be

10-1/2

2 x 4, or larger.

(267)

7 (178)

5-1/8
(130)

C

E

D

A

E

F

12-1/8

(308)

7 (178)

D

Table 12 - Fireplace Specifications

F

G

* C and D are glass viewing area dimensions

Top View Front View

Model A B C* D* E F G H I J K

35” Models 32-1/8 (816) 26-5/8 (677) 19-1/2 (496) 29-1/4 (743) 35-1/4 (895) 25 (635) 12-1/2 (317) 32-7/8 (835) 6-7/8 (175) 17 (432) 10-1/8 (258)

40” Models 37-1/8 (943) 34-5/8 (880) 24-1/2 (623) 34-1/4 (870) 40-1/4 (1022) 30 (762) 15 (381) 37-7/8 (962) 6-7/8 (175) 17 (432) 10-1/8 (258)

18

45”Models 37-1/8 (943) 34-5/8 (880) 24-1/2 (623) 39-1/4 (997) 45-1/4 (1149) 35 (889) 17-1/2 (445) 42-7/8 (1089) 6-7/8 (175) 17 (432) 10-1/8 (258)

A

B

Back wall of chase/enclosure (including finishing materials)

NOTE: When in top vent mode, No combustible material shall be allowed to contact the rear flue cap/cover.

J

Left Side View Right Side View

Hood

Gas line

access

I

K

Inches (millimeters)

E

C*

A

D*

B

Blower

access panel

H

Inches

(millimeters)

K

Junction

box access

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

2.

Prepare the Fireplace Top Spacers

1. The two (2) 4” standoff spacers on top of the fireplace cabinet are shipped flat. Remove the screw adjacent to the

detached end (Figure 7A).

2. Bend the standoffs as shown (Figure 7B):

3. Align the hole in the standoff with the hole in the fireplace top, and secure with the screw that was removed in
Step 1 (Figure 7B).

Installation

900948-00B, 04/2019

Figure 7A - Unassembled standoff

Positioned flat as shipped from the factory

Screw

Fireplace Front

Top Standoff

3. Route the Gas Supply Line to the Fireplace

1. Route a 1/2” (13 mm) gas line to the left side of the fireplace (Figure 8).

NOTE: Gas lines must be routed, assembled, and made of materials that are in strict accordance with local codes and

regulations. All fireplaces are factory-equipped with a flexible gas line connector and a 1/2” shutoff valve (Page 39).

Figure 8 - Routing the gas line - 35”, 40”, 45” Models

Left side front corner of
fireplace framing

Pipe coupling
(recommended)

7-5/8”
(195 mm)

Figure 7B - Assembled standoffs

Top Standoff

Fireplace

Front

(77 mm)

Proper Sizing of Gas Line

Properly size and route the gas supply line from the supply regulator to the area where the appliance is to be installed
per requirements outlined in the National Fuel Gas Code, NFPA 54—latest edition (USA) or CAN/CGA-B149.1—latest
edition (Canada).

The gas supply line should not be connected to the appliance until step 12. Connect the Gas Line (Page 39).

NOTE:

• All fireplaces are factory-equipped with a flexible gas line connector and 1/2” shutoff valve (Figure 31, Page 40).

• See Massachusetts Horizontal Vent Requirements for additional requirements for installations in the state of

Massachusetts in the USA.

• A pipe joint compound rated for gas should be used on the threaded joints. Ensure propane-resistant compounds
are used in propane applications. Be very careful that the pipe compound does not get inside the pipe.

• A sediment trap in the supply line as close as possible to the fireplace is recommended.

• Check with the local building official for local code requirements (e.g., Are below grade penetrations of the gas
line allowed?, etc).

If propane is used, be aware that with a tank that is too small (i.e., under 100 lbs, if this
is the only gas appliance in the dwelling—see NPFA 58), there may be a loss of pressure.
This can result in insufficient fuel delivery that can cause sooting, delayed ignition, or other
malfunctions. Any damage resulting from an improper installation is not covered by the
limited warranty.

3”

CAUTION

19

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

4.

Determining Vent Setup in the Combination Venting Unit

Combination venting units are shipped with round outer flue covers and inner flue cover plates installed that will require removal before connecting the vent pipe. If
you require a rear vented unit, remove the round outer rear flue cover (2 screws, Figure 9A) and the inner flue cover plate (4 screws, Figure 9B). If you require a top
vented unit, remove the round outer top flue cover (2 screws, Figure 9A) and the inner top flue cover plate (2 screws, Figure 9B).

NOTE: It may be necessary to remove the upper lintel and baffle to access the inner flue cover plates (3 screws).

(for 45” models only)

900948-00B, 04/2019

Installation

Figure 9A

Outer Top Flue Cover

Outer Rear
Flue Cover

Figure 9B

Inner Top Flue
Cover Plate

Inner Rear Flue Cover Plate

20

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

5.

Rough in the Electrical Supply, if Needed

As necessary, rough in the fireplace electrical supply per NEC and local codes.

6. Place the Fireplace in the Framing and Secure

NOTE: Nailing flanges, combustible members, and screw heads in areas directly adjacent to the nailing flanges are

EXEMPT from the 1/2” clearance to combustible requirements for the firebox outer wrapper.
NOTE: Combustible framing may be in direct contact with the nailing flanges and may be located within 1/2” of

screw heads and the firebox wrapper in areas adjacent to the nailing flanges.
Frame the opening to the exact dimensions specified in the framing details in this manual.

1. Bend out the appropriate nailing flanges for the drywall / finish material to be used (Figure 10). Nailing flanges

are provided for:

• 1/2”, and

• 5/8” framing depths.

2. Secure the fireplace to the side framing members using the unit’s nailing flanges —one top and bottom on each

side of the fireplace front (Figure 10). Use 8d nails or the equivalent.

3. A flush-mount mounting kit is available for purchase (order cat. number F3695). Attach the flush mounting

bracket using two screws per bracket as shown in Figure 10.

Installation

900948-00B, 04/2019

Figure 10 - Flush Mounting Bracket

Flush Mounting Bracket

VENT SYSTEM PREPARATION

7. Select a Horizontal or Vertical Vent System

1. With the fireplace secured in the framing, determine the vent route and identify the exterior termination location.

The following sections describe vertical (roof) and horizontal (exterior wall) vent applications. Use only approved
vent components. See Pages 28 - 29 (vertical) and Pages 33 - 35 (horizontal).

NOTE: This fireplace must be vented directly to the outside.

WARNING

The vent system may not service multiple appliances, and must never be connected to a
flue serving a separate solid fuel burning appliance.

NOTE: The vent pipe is tested to be run inside an enclosed wall. There is no requirement for inspection openings in

the enclosing wall at any of the joints in the vent pipe.

21

Innovative Hearth Products

2 1/2”

Break-Away

1

3

20

40

6

10

40

25 ft Maximum

horizontal run (flat to near level)

60 ft Maximum vertical run

60

1.9

25

Horizontal Distance (ft)

Vertical Height (ft) from top of unit

Vertical Height (ft)

2

5

Elbow**

5 10

15

3” Base + wing3” Base

6 ft Minimum
vertical run

6 ft Minimum vertical run

None

Appliance Top Vent Outlet

U-Shaped Vent

Restrictor

Inner

Fireplace

Collar

Appliance Top Vent Outlet

U-SHAPED VENT
RESTRICTOR

APPLIANCE REAR

VENT OUTLET

INNER FIREPLACE

COLLAR

Inner Fireplace Collar Appliance Rear

Vent Outlet

U-Shaped Vent
Restrictor

Intake Air Baffle

With break-away
raised***

U-Shaped Vent

Restrictor

Inner

Fireplace

Collar

Appliance Top Vent Outlet

U-SHAPED VENT
RESTRICTOR

APPLIANCE REAR

VENT OUTLET

INNER FIREPLACE

COLLAR

Inner Fireplace Collar Appliance Rear

Vent Outlet

U-Shaped Vent
Restrictor

Intake Air Baffle

Base Vent Restrictor

With break-away
raised***

DRT2000-C Series Direct-Vent Gas Fireplaces

Install the Vent Restrictor (if necessary)

8.

1. Use the vent run descriptions in Figure 11 to determine if a vent restrictor is necessary.

2. If necessary, assemble the vent restrictor and wing as detailed in Figures 11 and 14.

3. If necessary, install the appropriate vent restrictor (Figure 12 or 13).
NOTE: If installing the vent restrictor in a rear vent application, ensure the factory-installed intake air baffle is in place (Figure 13).
NOTE: The vent restrictor is shipped in the firebox.

Installation

900948-00B, 04/2019

Figure 11 - When to use a vent restrictor

Figure 12 - Vent restrictor installation, Top vent

U-Shaped Vent

*

Restrictor

Inner

Fireplace

Collar

Figure 13 - Vent restrictor installation, Rear vent

Inner Fireplace Collar

Intake Air Baffle

Appliance Rear

Vent Outlet

U-Shaped Vent

Restrictor

Figure 14 - Vent restrictor assembly

*

Base Vent Restrictor

With break-away
raised***

* For straight runs or runs with elbows as illustrated in Vertical Vent Figures/Tables starting on

Page 28

** No rise required.

Vent Restrictor with Vertical Terminations

When vertically terminating the vent system through the roof and using the vent restrictor, install the vent restrictor
in the top vent of the fireplace outlet.

If installing more than 6 ft of vertical venting, install the restrictor (Figure 12), from inside or outside the unit, in the
inner fireplace collar. The vent restrictor is held in place by friction.

Vent Restrictor with Horizontal Terminations

22

When horizontally terminating a vent system with a vertical vent run up to 4 ft through an exterior wall, no vent
restrictor is required.

If installing more than 6 ft of vertical venting, install the restrictor (Figure 13), from inside or outside the unit, in the
inner fireplace collar. The vent restrictor is held in place by friction. When rear venting with only a slip section and
termination only; install vent restrictor with break-away raised.

Base Vent Restrictor + Wing

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

9. Connecting the Vent Pipe

Secure Vent® SV4.5 direct-vent system components are unitized concentric pipe components featuring positive twist
lock connections (Figures 15 - 16, Page 23). All of the fireplaces covered in this document are fitted with collars
having locking inclined channels. The dimpled end of the vent components fit over the fireplace/vent collar to create
the positive twist lock connection.

1. Align the dimpled end over the collar, adjusting the radial alignment until the four (4) locking dimples are aligned

with the inlet of the four (4) inclined channels on the collar (Figures 15 - 16).

2. Push the vent component against the collar until it fully engages, then twist the component clockwise, running

the dimples down and along the incline channels until they seat at the end of the channels.

NOTE: The unitized design of the Secure Vent® components will engage and seal both the inner and outer vent pipe.

3. If desired, a #6 x 1/2” sheet metal screw can be used at the joint, but is not required as the pipe will securely

lock when twisted (Figure 16).

Where required, a telescopic vent section (SV4.5LA) may be used to provide the installer with an option to install
in tight and confined spaces, or where the vent run made up of fixed length pieces develops a joint in a undesirable
location, or will not build up to the required length. The SV4.5LA Telescopic Vent Section has an effective length of
from 1-1/2 to 7” (38 to 178 mm). The SV4.5LA is fitted with a locking inclined channel end (identical to a normal
vent section component) and a plain end with three (3) pilot holes. Slip the plain end over the locking channel end of
a standard SV4.5 vent component the required distance and secure with three (3) screws.

Installation

900948-00B, 04/2019

Vent elbows

Figure 15 - Connecting vent

components

Arrow

Dimple

Locking
Incline
Channel

Appliance Collar or
Vent Section

Figure 16 - Connected vent

components

Dimple

Locking

Incline

Channel

Arrow

Figure 17 - Elbow Dimensions

13-5/8

(346)

10

(254)

~45°

Non-Swivel

Inches (millimeters)

~90°

15-1/2

(394)

9-7/8
(251)

Non-Swivel

Vent elbows are available in 90° and 45° configurations. Refer to Figure 17 for the SV4.5E45 and SV4.5E90 elbow
dimensions. The elbows feature a twist section to allow them to be routed about the center axis of their initial collar
section to align with the required direction of the next vent run element.

1. Rotate the elbow in a clockwise direction (to avoid the possibility of unlocking any of the previously connected
vent sections) for proper alignment (Figure 17). See Connecting the vent pipe for more information.

Table 13 - Effective Vent Length

Model Effective Length

SV4.5L6 4-1/2”
SV4.5L12 10-1/2”
SV4.5L24 22-1/2”
SV4.5L36 34-1/2”
SV4.5L48 46-1/2”

23

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces

Vent section length table

Table 14 will assist calculating how many vent sections are needed for the planned vent configuration. When a vent
section is engaged with another section, its effective length will be 1-1/2” shorter.

Table 14 - Vent Section Length

24

Nominal Section

Length (in.)

Net Section Length

(in.)

Height of Vent

in. ft in. ft

4.5 0.375 1 0 0 0 0 1 252 21 0 1 0 7 0 8

9 0.75 2 0 0 0 0 2 276 23 0 0 0 8 0 8

10.5 0.875 0 1 0 0 0 1 279 23.25 0 0 0 0 6 6

15 1.25 1 1 0 0 0 2 280.5 23.375 1 0 0 8 0 9

22.5 1.875 0 0 1 0 0 1 289.5 24.125 0 1 0 0 6 7

31.5 2.625 0 3 0 0 0 3 301.5 25.125 0 0 1 0 6 7

34.5 2.875 0 0 0 1 0 1 310.5 25.875 0 0 0 9 0 9

37.5 3.125 1 1 1 0 0 3 325.5 27.125 0 0 0 0 7 7

43.5 3.625 0 2 1 0 0 3 330 27.5 1 0 0 0 7 8

45 3.75 0 0 2 0 0 2 345 28.75 0 0 0 10 0 10

46.5 3.875 0 0 0 0 1 1 349.5 29.125 1 0 0 10 0 11

51 4.25 1 0 0 0 1 2 372 31 0 0 0 0 8 8

55.5 4.625 0 1 2 0 0 3 379.5 31.625 0 0 0 11 0 11

57 4.75 0 0 1 1 0 2 418.5 34.875 0 0 0 0 9 9

67.5 5.625 0 0 3 0 0 3 465 38.75 0 0 0 0 10 10

69 5.75 0 0 0 2 0 2 475.5 39.625 0 1 0 0 10 11

73.5 6.125 1 0 0 2 0 3 480 40 1 1 0 0 10 12

79.5 6.625 0 1 0 2 0 3 492 41 1 0 1 0 10 12

81 6.75 0 0 0 1 1 2 499.5 41.625 0 0 0 1 10 11

91.5 7.625 0 0 2 0 1 3 504 42 1 0 0 1 10 12

93 7.75 0 0 0 0 2 2 511.5 42.625 0 0 0 0 11 11

97.5 8.125 1 0 0 0 2 3 520.5 43.375 0 2 0 1 11 14

103.5 8.625 0 0 0 3 0 3 531 44.25

108 9 1 0 0 3 0 4 538.5 44.875 1 0 0 2 11 14

117 9.75 1 0 5 0 0 6 549 45.75 1 0 2 1 11 15

118.5 9.875 1 1 0 3 0 5 558 46.5 0 0 0 0 12 12

126 10.5 0 0 1 3 0 4 562.5 46.875 1 0 0 0 12 13

130.5 10.875 1 0 1 3 0 5 568.5 47.375 0 1 0 0 12 13

135 11.25 0 0 6 0 0 6 573 47.75 1 1 0 0 12 14

139.5 11.625 0 0 0 0 3 3 580.5 48.375 0 0 1 0 12 13

142.5 11.875 1 0 0 4 0 5 589.5 49.125 0 1 2 2 10 15

144 12 1 0 0 0 3 4 595.5 49.625 1 1 1 0 12 15

154.5 12.875 1 1 0 0 3 5 604.5 50.375 0 0 0 0 13 13

160.5 13.375 0 2 0 0 3 5 615 51.25 0 1 0 0 13 14

172.5 14.375 0 0 0 5 0 5 625.5 52.125 0 2 0 0 13 15

177 14.75 1 0 0 5 0 6 631.5 52.625 1 0 1 0 13 15

186 15.5 0 0 0 0 4 4 637.5 53.125 0 1 1 0 13 15

196.5 16.375 0 1 0 0 4 5 651 54.25 0 0 0 0 14 14

207 17.25 0 0 0 6 0 6 655.5 54.625 1 0 0 0 14 15

211.5 17.625 1 0 0 6 0 7 672 56 0 2 0 0 14 16

217.5 18.125 0 1 0 6 0 7 678 56.5 1 0 1 0 14 16

229.5 19.125 0 0 1 6 0 7 688.5 57.375 1 1 1 0 14 17

232.5 19.375 0 0 0 0 5 5 697.5 58.125 0 0 0 0 15 15

241.5 20.125 0 0 0 7 0 7 702 58.5 1 0 0 0 15 16

246 20.5 1 0 0 7 0 8 712.5 59.375 1 1 0 0 15 17

6 12 24 36 48

4.5 10.5 22.5 34.5 46.5 Net Section Length (in.) 4.5 10.5 22.5 34.5 46.5

Number of Vent Sections

Nominal Section Length

Total Qty

Installation

900948-00B, 04/2019

(in.)

Height of Vent

720 60 0 0 1 0 15 16

6 12 24 36 48

Number of Vent Sections

0 2 2 0 11 15

Total Qty