Vermont Castings INDVRCBSB, INDVRBSSB, INDVRBMSB, INDVRBDSB Installation And Operating Instructions Manual

DANGER

HOT GLASS WILL

CAUSE BURNS.

DO NOT TOUCH GLASS

UNTIL COOLED.

NEVER ALLOW CHILDREN

TO TOUCH GLASS.

A barrier designed to reduce the risk of burns from the hot

viewing glass is provided with this appliance and shall

be installed for the protection of children and

other at risk individuals.

20306543

CERTIFIED

SAFETY BARRIER

Intrepid® Direct Vent Gas Heater
Installation and Operating Instructions

Model: INDVRCBSB, INDVRBSSB, INDVRBMSB, INDVRBDSB

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

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.
– 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 re department.

• Installation and service must be performed

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

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.

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 for use only 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.

INSTALLER: Leave this manual with the appliance.

CONSUMER: Retain this manual for future

reference.

20306761 12/14 Rev. 1

Intrepid® Direct Vent - Rear Vent Gas Heater

Table of Contents

Thank you and congratulations on your purchase of a Vermont Castings stove.

PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING APPLIANCE.

IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follow these

instructions may result in a possible re hazard and will void the warranty.

INSTALLATION AND OPERATING INSTRUCTIONS

General Information. .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 3

Requirements for the Commonwealth of Massachusetts......4

Stove Dimensions..........................................5

Installation Requirements ..................................6

Locating the Stove .........................................6

Clearance Requirements ...................................6

Minimum Clearances, Parallel Installation,

Corner Installation. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 7

Wall and Ceiling Clearances ...............................7

Mantel Clearances. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 7

Hearth Requirements ......................................7

Gas Specications .........................................8

Air Shutter Setting .........................................8

Gas Inlet and Manifold Pressures ...........................8

High Elevations. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 8

Horizontal Termination .....................................8

Vertical Termination . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 9

Restrictor Plate Adjustment for Extended Pipe Runs .. . .. . .. . 9

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

Termination Location ......................................11

Termination Clearances .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 12

MAINTENANCE

Annual System Inspection. .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 37

Log set and Burner Cleaning ..............................37

Care of Cast Iron .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 37

Cleaning the Glass .......................................37

Glass Replacement . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 37

Gasket Replacement......................................38

Inspect the Vent System Annually ..........................38

Check the Gas Flame Regularly ...........................38

Stove Disassembly .......................................38

Wiring Diagrams. .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 39

REPLACEMENT PARTS . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 41

OPTIONAL ACCESSORIES . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 42

WARRANTY .............................................43

EFFICIENCIES ...........................................44

INSTALLATION

Install Optional FK20 Fan Kit ..............................13

Venting System Components. .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 14

Venting System Assembly, General Information,

Options, Planning .................................15

Rear Vent ................................................16

Horizontal Installation .....................................17

Vertical Installation. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 19

Cathedral Ceiling Installation ..............................21

General Maintenance .....................................22

Supplemental Canadian Instructions .. . .. . .. . .. . .. . .. . .. . .. 22

Vertical Through Existing Chimney .........................22

Converting a Class-A Metal Chimney or Masonry

Chimney to a Direct Vent System....................25

Connect Gas Supply Line .................................27

Burner Information ........................................28

Complete the Assembly .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 28

Install ON/OFF Switch . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 28

Install the Front Plate......................................28

Thermostat Connection .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 28

Install the Log Set.........................................29

Safety Barrier Installation .................................30

OPERATION

Your First Fire .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 31

Pilot and Burner Inspection ................................31

Flame & Temperature Adjustment ..........................31

Flame Characteristics .....................................31

Extension Knobs. .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. 31

Lighting and Operating Instructions ........................32

Troubleshooting ..........................................33

Fuel Conversion Instructions ..............................34

2

20306761

Intrepid® Direct Vent - Rear Vent Gas Heater

Installation & Operating Instructions

The Intrepid Direct Vent room Heater, Model INDVR is a vented
gas appliances listed to ANSI Standard Z21.88-2005 and CSA-

2.33-2005 for Vented Room Heaters, and CSA 2.17-M91, Gas­Fired Appliances For Use at High Altitudes.

The installation of the Intrepid Direct Vent Room Heater must
conform with local codes, or in the absence of local codes, with
National Fuel Gas Code, ANSI Z223.1/NFPA 54 — latest edition
and CSA B-149.1 (EXCEPTION: Do not derate this appliance for
altitude. Maintain the manifold pressure at 3.5” w.c. for Natural
Gas and 10” w.c. for LP gas at maximum input.) Refer to page
8 (RF only).

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.

Installation and replacement of gas piping, gas utilization
equipment or accessories, and repair and servicing of equip­ment shall be performed only by a qualied agency, preferably
NFI or WETT (Canada) certied. The term “qualied agency”
means any individual, rm, corporation, or company that
either in person or through a representative is engaged in
and is responsible for (a) 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.

The Intrepid Direct Vent Room Heater should be inspected
before use and at least annually by a qualied service agency.
It is imperative that control compartments, burners, and cir­culating air passageways of the appliance be kept clean.

The Intrepid Direct Vent Room Heater and the individual shut-off
valve must be disconnected from the gas supply piping during
any pressure testing of that system at test pressures in excess
of 1/2 psig (3.5 kPa).

The Intrepid Direct Vent Room Heater must be isolated from the
gas supply piping system by closing the 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.

An accessible tap is located above the pilot/on-off knob for check­ing the inlet pressure.

‘Direct Vent’ describes a sealed combustion system in which in­coming outside air for combustion and outgoing exhaust enter and
exit through two separate concentric passages within the same
sealed vent system. The system does not use room air to support
combustion. The Direct Vent system permits the gas appliance to
be vented directly to the outside atmosphere through the side of
the house or vertically through the roof.

This appliance is approved for bedroom installations in the U.S.
and Canada.

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

WARNING: Operation of this heater when not connected to a
properly installed and maintained venting system can result
in carbon monoxide (CO) poisoning and possible death.

The Intrepid Direct Vent Room Heater, when installed, must be
electrically grounded in accordance with local codes or, in the
absence of local codes, with the National Electrical Code ANSI/
NFPA 70, (latest edition), or of the current Canadian Electrical
Code C22.1.

Due to high temperatures this appliance should be located
out of trafc and away from furniture and draperies.

WARNING: This appliance is hot while in operation. Keep
children, clothing, and furniture away. Contact may cause
burns or ignition of combustible materials.

Children and adults should be alerted to the hazards 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.

Clothing or other ammable materials should not be placed
on or near the appliance.

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

The appliance area must be kept clear and free from com­bustible materials, gasoline, and other ammable vapors
and liquids.

The ow of combustion and ventilation air must not be ob­structed. The installation must include adequate accessibility
and clearance for servicing and proper operation.

WARNING: Do not operate the Room Heater with the glass
panel removed, cracked or broken. Replacement of the panel
should be done by a licensed or qualied service person.

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.

Do not burn wood, trash or any other material for which this
appliance was not designed. This appliance is designed to
burn either natural gas or propane only.

This gas appliance must not be connected to a chimney ue
serving a separate solid-fuel burning appliance.

CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper and
dangerous operation.

Verify proper operation after servicing.

* Aftermarket: Completion of sale, nor for purpose of resale,
from the manufacturer.

Intrepid

Direct Vent / Rear Vent

Certied to:

ANSI Z21.88-2014 / CSA Z2.33-2014

Vented Gas Fireplace Heaters

Proposition 65 Warning: Fuels used in gas, woodburning or

oil red appliances, and the products of combustion of such

fuels, contain chemicals known to the State of California to
cause cancer, birth defects and other reproductive harm.

California Health & Safety Code Sec. 25249.6

20306761

3

Intrepid® Direct Vent - Rear Vent Gas Heater

Installation & Operating Instructions

Requirements for the Commonwealth of
Massachusetts

All gas tting and installation of this heater shall only be
done by a licensed gas tter or licensed plumber.

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:

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 is installed on each additional level of the
dwelling, building or structure served by the side wall
horizontally vented gas fueled equipment. It shall be the
responsibility of the property owner to secure the services

of qualied licensed professionals for the installation of

hard wired carbon monoxide detectors.

In the event that the side wall horizontally vented gas 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.

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.

Approved Carbon Monoxide Detectors

Each carbon monoxide detector as required in accordance
with the above provisions shall comply with NFPA 720 and

ANSI/UL 2034 listed and IAS certied.

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”.

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.

Exemptions

The following equipment is exempt from 248 CMR

5.08(2)(a)1 through 4:

• The equipment listed in Chapter 10 entitled “Equipment

Not Required To Be Vented” in the most current edition
of NFPA 54 as adopted by the Board; and

• Product Approved side wall horizontally vented gas fueled

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

MANUFACTURER REQUIREMENTS

Gas Equipment Venting System Provided

When the manufacturer of Product Approved side wall
horizontally vented gas equipment provides a venting
system design or venting system components with the
equipment, the instructions provided by the manufacturer
for installation of the equipment and the venting system
shall include:

• Detailed instructions for the installation of the venting

system design or the venting system components;
and

• A complete parts list for the venting system design or

venting system.

Gas Equipment Venting System NOT Provided

When the manufacturer of a Product Approved side wall
horizontally vented gas fueled equipment does not provide

the parts for venting the ue gases, but identies “special

venting systems”, the following requirements shall be

satised by the manufacturer:

• The referenced “special venting system” instructions shall

be included with the appliance or equipment installation
instructions; and

• 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
instructions.

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.

4

20306761

Intrepid® Direct Vent - Rear Vent Gas Heater

Intrepid Stove Dimensions

21³⁄₈"

(543 mm)

Centerline

of Flue Pipe

18”

(457 mm)

Valve Inlet

C

L

(102 mm)

4”

13¹¹⁄₁₆” (347 mm)

16⁷⁄₁₆”

(418 mm)

24¹⁄₄”

(616 mm)

21³⁄₁₆” (538 mm)

6¹⁄₂”

(165 mm)

C

Valve

Inlet

L

Fig. 1 Intrepid dimensions.

13⁷⁄₈” (352 mm)

21³⁄₄” (553 mm)

20306761

5

Intrepid® Direct Vent - Rear Vent Gas Heater

Installation Requirements

The installation must conform with local codes or, in the
absence of local codes, with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 - latest edition. (EXCEPTION: Do
not derate this appliance for altitude. Maintain the man­ifold pressure at 3.5 inches w.c. for Natural Gas, and 10
inches w.c. for Propane).

In Canada, installation must be in accordance with the
current CSA B-149.1 Installation Codes and/or local
codes.

The installation should be done by a qualied service
person who is familiar with the building codes and
installation techniques appropriate for your area to
accomplish a safe and effective installation.

Your dealer or your local gas supplier will be able to
refer a qualied service person.

WARNING: Due to high temperatures, the
HEATER should be located out of trafc and
away from furniture and draperies.

The surface of the Heater is hot when it is in use.
Young children should be watched carefully when
they are in the same room when the Heater is in use,
and they should be taught to avoid the hot surface.
Keep any objects that can burn well away from the
Heater, and observe the recommended clearances
that follow.

Locating the Stove

In choosing a location for the stove, consider:

• The location of outside walls;

• Where additional heat is needed:

• Where family members gather most often;

• The vent system requirements.

NOTE: We do not recommend the use of wallpaper next
to this stove. Over time, radiant heat may cause the wall­paper to shrink, or may adversely affect the binders in the
wallpaper adhesive.

A

B

Fig. 2 Possible stove locations.

C

D

ST942

WARNING:

Always maintain required clearances

(air spaces) to nearby combustibles to
prevent re hazard. Do not ll air spaces

with insulation. All venting components
must maintain a 1” (25 mm) clearance to combus­tible materials. Maintain a 6” (152 mm) clearance
when using single wall pipe. Maintain a 2” (51
mm) clearance on top and 1” (25 mm) on sides
and bottom when venting straight off the rear.

• The gas appliance and vent system must be
vented directly to the outside of the building
and never be attached to a chimney serving a
separate solid fuel or gas-burning appliance.

• Refer to the manufacturer’s instructions included
with the venting system for complete installation
procedures.

Clearance Requirements

Minimum Clearances to Combustible Materials

Measure side clearances as shown in Figures 3, 4 and 5
from the outer edge of the cast iron stove top. Measure
rear clearances from the outermost surface of the steel
rear skirt.

This heater is approved for installation into an alcove con­structed of combustible materials to the dimensions and
clearances shown on the next page.

The same clearances apply in a standard parallel instal­lation.

6

20306761

Intrepid® Direct Vent - Rear Vent Gas Heater

C

L

18³⁄₄"

(476 mm)

2¹⁄₂"

(64 mm)

4"

(102 mm)

4"

(102 mm)

Max. Vent

Length

24” (610 mm)

2" (51 mm)

2"

(51 mm)

7¹⁄₂"

(190 mm)

Max. Vent

Length

24" (610 mm)

9"

(230 mm)

Max. Mantel

Width

Refer to

Fig. 6

4"

(102 mm)

Sidewall/

Trim

2¹⁄₂"

(63 mm)

Rear Wall

A

B

3" (75mm) Min.

Parallel Installation: Minimum Clearance

and Flue Centerline

ST947

Fig. 3 Parallel Installation, minimum back and side clearance.

Corner Installation: Minimum Clearance and

Flue Centerline

Mantel Clearances

Combustible
Mantel or Trim
Materials

Noncombustible
Materials

ST382

A (Max.) B (Min.)

9" 10
(230 mm) (270 mm)

71⁄2" 9"
(190 mm) (230 mm)

6" 71⁄2"
(152 mm) (190 mm)

41⁄2" 6"
(114 mm) (152 mm)

3" 41⁄2"
(76 mm) (114 mm)

11⁄2" 3"
(38 mm) (76 mm)

A = Depth of Mantel and/or Top Trim
B = Height from Top of Heater

Fig. 6 Mantel / top trim clearances.

1

⁄2"

ST948

Fig. 4 Corner installation, minimum corner clearance and ue

centerline.

Wall and Ceiling Clearances

Fig. 5 Alcove and ceiling clearances.

20306761

ST949

Hearth Requirements

The Intrepid Heater must be installed on rigid ooring. When

the heater is installed directly on any combustible surface

other than wood ooring, a metal or wood panel extending

the full width and depth of the unit must be used as the
hearth. There are no other hearth requirements.

7

Intrepid® Direct Vent - Rear Vent Gas Heater

20

19

18

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Vertical Run (in feet)

Measured after the first elbow. (Transition elbow)

Horizontal Run (in feet)

21

22

23

24

25

26

27

28

29

30

ST134a
FDV28
Horizontal
vent run
12/3/99 djt
areas modified
1/11/00 djt

Gas Specications

Max. Min.
Input Input
Model Fuel Gas Control BTU/h BTU/h

INDVR Series Nat Millivolt 18,500 12,500
INDVR Series Prop Millivolt 16,000 12,000

Air Shutter Setting

Minimum injector air inlet opening

Model Natural Gas LP
INDVR 1/2” Open 1/2” Open

Weight: Fully assembled 350 lbs.

Gas Inlet and Manifold Pressures

Natural LP (Propane)

Inlet Minimum 5.5” w.c. 11.0” w.c.

Inlet Maximum 14.0” w.c. 14.0” w.c.

Manifold Pressure 3.5” w.c. 10” w.c.

The installation must conform with local codes or, in the
absence of local codes, with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 - latest edition. (EXCEPTION:
Do not derate this appliance for altitude. Maintain the
manifold pressure at 3.5” w.c. for Natural Gas and 10”
w.c. for Propane.)

Horizontal Termination

Except for straight-through the wall vent installations.

The vent must rise vertically a minimum of 24” (610 mm)

after the rst elbow directly off the back of the unit, before

the next elbow. The horizontal run may extend up to 20’ (6
m) and include a vertical rise of up to 40’ (12 m). (Fig. 7)
Horizontal termination must also meet the criteria shown
in Figures 11 and 12.

• Approved vent systems must terminate above and
including the heavy line in Figure 7.

• Two 45° elbows may be substituted for each single 90˚

elbow.

• With a rise between 2’ - 5’, one 90° or two 45° elbows

may be used (Excluding the rst elbow directly off the

back of the unit.

Unacceptable

Venting Conguration

High Elevations

Input ratings are shown in BTU per hour and are
certied without deration for elevations up to 4,500
feet (1,370m) above sea level.

For elevations above 4,500 feet (1,370m) in USA,
installations must be in accordance with the cur­rent ANSI Z223.1/NFPA 54 and/or local codes having
jurisdiction.

In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 4,500 feet (1,370m).

WARNING: Improper installation, adjustment,
alteration, service or maintenance can cause
injury or property damage. Refer to this manual
for correct installation and operational proce­dures. For assistance or additional information

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

8

May use up to

four 90° Elbows

(Including elbow

directly off back of

unit.)

Two 90°

Elbows

Unacceptable

Venting Conguration

Fig. 7 Horizontal vent termination window.

ST134f

20306761

Intrepid® Direct Vent - Rear Vent Gas Heater

20

19

18

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

20

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Vertical Run (in feet)

(Measured after the first elbow. (Transition elbow)

Horizontal Run (in feet)

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

ST132f
Pinstar
Vertical
vent run
10/9/00 djt

Vertical Termination

A vertical vent system must terminate no less than 8’
(2.44 m) and no more than 40’ (12 m) above the appli-

ance ue collar. A restrictor plate (supplied) must be used
(where specied) in all vertically terminated vent systems.

NOTE: The restrictor plate supplied with the vertical
termination kit should be discarded. Install restrictor
plate according to recommendations in Figure 10. A

vertically terminated vent system must also conform to the
following criteria:

• No more than three 90° elbows may be used.

• Two 45° elbows may be substituted for one 90° elbow.

No more than six elbows may be used.

• Vent must rise a minimum of 2 feet before offset is

used.

• Termination height must conform to roof clearance as

specied in Figure 11.

All Vertical
Terminations in
this area Re­quire use of the
Restrictor Plate*

Fig. 8 Vertical vent termination window.

20306761

Vertical terminations

must be within this area

Venting Conguration

No Restrictor

Plate

Unacceptable

ST132g

Restrictor Plate Adjustment

for Extended Pipe Runs

This stove is shipped with a restrictor plate in the Parts
Bag. Adjustments can be made by loosening the adjust­ment screw to allow the restrictor plate to slide up or down.
(Fig. 9) A guide for usage is shown in Figure 10.

NOTE: Some installations may require some adjustment

by the installer for optimum ame appearance. Optimum
ame appearance is a ame that is not subject to tall, dirty
yellow ames producing soot or ames lifting off of the

ember bed ports.

Restrictor Plate Adjustment

1. Remove the logs if installed.

2. Remove the adjustment screw in the back wall of the

rebox.

3. Install restrictor plate as shown in Figure 9 with angle
on plate on the top right side. Secure with adjustment
screw.

4. Adjust restrictor according to examples in Figure 10.

5. Install logs following log installation instructions.

Restrictor Plate

ST936

Fig. 9 Restrictor plate.

Examples for Extended Run/Restrictor Plate Settings ­top of plate to center of bolt

1. 90° elbow, 40’ (12 m) vertical - 2

2. 90° elbow, 20’ (6 m) vertical, 90° elbow, 8’ (2.4 m)
horizontal - 27⁄8" (73 mm)

Figure 10

7

⁄8" (73 mm)

9

Intrepid® Direct Vent - Rear Vent Gas Heater

Vent Termination Clearances

When planning the installation, consider the location of the
vent terminal and clearances. Some of the most common
clearances to keep in mind are shown in Figure 11.

Important: All vent clearances must be maintained.
Check your vent termination clearances against Fig­ures 11 and 12.

The vent should be placed so that people cannot be burned
by accidentally touching the vent surfaces when the stove
is operating.

The vent termination should be located where it cannot be
damaged by such things as automobile doors, lawn mowers
or snowblowers and it should be located away from areas
where it could become blocked by snow, etc.

Some considerations are:

• Obstructions or impediments to venting.

• Nearby combustible materials that could come into

contact with combustion exhaust gases.

• Other nearby openings {within 9” (230 mm)} through

which exhaust gas could reenter the building.

• All vegetation within 3’ (914 mm) that may interfere with

the draft.

Other factors that inuence where the installation will be

sited include the location of outside walls, where additional
heat may be desired in the home, where the family mem­bers gather most regularly, and perhaps most importantly,
the distance limitations of the venting system.

Your stove is approved to be vented either through the side
wall, or vertical through the roof.

• Vermont Castings Group does not require any open-

ing for inspection of vent pipe.

• Only venting components specically approved and

labelled for this stove may be used.

• Minimum clearances between vent pipes and com-

bustible materials is one (1”) inch (25mm), except
where stated otherwise.

• Venting terminals shall not be recessed into a wall or

siding.

• Horizontal venting must be installed on a level plane

without an inclining or declining slope.

There must not be any obstruction such as bushes, garden
sheds, fences, decks or utility buildings within 24” from the
front of the termination hood.

Do not locate termination hood where excessive snow or ice
build up may occur. Be sure to check vent termination area
after snow falls, and clear to prevent accidental blockage
of venting system. When using snow blowers, make sure
snow is not directed towards vent termination area.

Location of Vent Termination

It is imperative the vent termination be located observing
the minimum clearances as shown in Figure 11.

IMPORTANT

• The horizontal termination must not be recessed

into the exterior wall or siding.

• Horizontal vent runs must be level toward the vent

termination.

• Clearances around the vent termination must be

maintained.

10

20306761

V

X

X

X

D

E

B

B

B

C

B

M

B

A

J

K

F

L

VENT TERMINATION AIR SUPPLY INLET

AREA WHERE TERMINAL IS NOT PERMITTED

H

I

Fixed

Closed

Operable

Operable

Fixed

Closed

B

INSIDE

CORNER DETAIL

A

G

CFM145a

V

V

V

V

V

V

V

V

TERMINATION LOCATION

Figure 11 –
Termination Locations

Intrepid® Direct Vent - Rear Vent Gas Heater

A = Clearance above grade, veranda, porch,

CANADIAN INSTALLATIONS

1

12" (30cm) 12" (30cm)

US INSTALLATIONS

2

deck or balcony

B = Clearance to window or door that may be

opened

C = Clearance to permanently closed window 12" (305mm) recommended to prevent

D = Vertical clearance to ventilated soft

6" (15cm) for appliances <10,000 BTU/h
(3kW)
12" (30cm) for appliances >10,000 BTU/h
(3kW) and <100,000 BTU/h (30kW)
36" (91cm) for appliances >100,000 BTU/h
(30kW)

6" (15cm) for appliances <10,000 BTU/h
(3kW)
9" (23cm) for appliances >10,000 BTU/h
(3kW) and <50,000 BTU/h (15kW)
12" (30cm) for appliances >50,000 BTU/h
(15kW)

12" (305mm) recommended to prevent

window condensation

window condensation

18" (458mm) 18" (458mm)
located above the terminal within a hor­izontal distance of 2' (610 mm) from the
center line of the terminal

E = Clearance to unventilated soft 12" (305mm) 12" (305mm)

F = Clearance to outside corner see next page see next page

G = Clearance to inside corner see next page see next page

H = Clearance to each inside of center line

extended above meter/regulator assembly

3' (91cm) within a height of 15' (5m) above

the meter/regulator assembly

3' (91cm) within a height of 15' (5m) above
the meter/regulator assembly

I = Clearance to service regulator vent outlet 3' (91cm) 3' (91cm)

J = Clearance to non-mechanical air supply

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

6" (15cm) for appliances <10,000 BTU/h

(3kW)

12" (30cm) for appliances >10,000 BTU/h

(3kW) and <100,000 BTU/h (30kW)

36" (91cm) for appliances >100,000 BTU/h

(30kW)

6" (15cm) for appliances <10,000 BTU/h
(3kW)
9" (23cm) for appliances >10,000 BTU/h
(3kW) and <50,000 BTU/h (15kW)
12" (30cm) for appliances >50,000 BTU/h
(15kW)

K = Clearance to mechanical air supply inlet 6' (1.83m) 3' (91cm) above if within 10' (3m) horizontally

L = Clearance above paved sidewalk or

7' (2.13m)

†

7' (2.13m)

†

paved driveway located on public property

M = Clearance under veranda, porch, deck or

12" (30cm)

‡

12" (30cm)

‡

balcony

1 In accordance with the current CSA-B149 Installation Codes
2 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 2 sides beneath the oor.

20306761

NOTE: 1. Local codes or regulations may require different clear-

2. The special venting system used on Direct Vent Fireplac-

3. Vermont Castings Group assumes no responsibility for

ances.

es are certied as part of the appliance, with clearances

tested and approved by the listing agency.

the improper performance of the appliance when the venting
system does not meet these requirements.

11

Intrepid® Direct Vent - Rear Vent Gas Heater

Outside Corner

Inside Corner

Termination Clearances

Termination clearances for buildings with combustible and noncombustible exteriors.

Alcove Applications*

TERMINATION CLEARANCES

Termination clearances for buildings with combustible and non-combustible exteriors.

F =

F

Combustible
6" (152 mm)

Noncombustible
2" (51 mm)

G =

G

Combustible
6" (152 mm)

Noncombustible

V

2" (51 mm)

V

C

D

C

V

O

E

Balcony -
with no side wall

M

V

Balcony -
with perpendicular side wall

M

V

P

M =

Combustible &
Noncombustible
12" (305 mm)

*NOTE: Termination in an alcove space (spaces open only on one side

and with an overhang) is permitted with the dimensions specied for
vinyl or non-vinyl siding and softs. 1. There must be a 3' (914 mm) min-

imum between termination caps. 2. All mechanical air intakes within 10'

Combustible &
Noncombustible

M = 12" (305 mm)
P = 6” (152 mm)

(1 m) of a termination cap must be a minimum of 3' (914 mm) below the
termination cap. 3. All gravity air intakes within 3' (914 mm) of a termina­tion cap must be a minimum of 1' (305 mm) below the termination cap.

Fig. 12 Termination clearances.

E = Min. 2” (51 mm) for

non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls

O = 8’ (2.4 m) Min.

No. of

Caps D

1 3' (914 mm) 2 x Dactual

2 6' (1.8 m) 1 x Dactual

3 9' (2.7 m) 2/3 x Dactual
4 12' (3.7 m) 1/2 x Dactual

D

= Number of Termination caps x 3

Min.

C

= (2 / Number termination caps) x D

Max.

min. Cmax.

Actual

12

20306761

Installation

A

Unpack the Stove

The stove is shipped fully assembled on its back. Unpack
the stove and carefully set it upright.

CAUTION

Porcelain enamelled surfaces are fragile. Handle por­celain enamelled castings tenderly. Familiarize yourself
with the assembly steps before you begin and proceed
with deliberation and care. If possible, have assistance
available.

Place enamelled castings on a soft, cushioned surface
until you are ready to assemble.

Avoid contact between the castings and other hard
surfaces or objects.

NOTE: Verify the two relief doors (located on top of the
rebox) are properly seated on the gasket. The doors
sit ush on the gasket, and should lift easily from the
seal around the opening.

Intrepid® Direct Vent - Rear Vent Gas Heater

Remove Four
(4) Screws
(Retain for
future use)

KT899

Fig. 13 Remove four (4) screws holding rear fan cover in
place. Retain for future use.

1/4-20 x 3/8’
Phillips Screw

If you are installing the fan, install it before com­pleting the stove venting.

If you are not installing a fan, proceed to the ap­propriate vent assembly section.

Install Optional Fan Kit FK20

Fan Kit Contents:

• #10 x 1/2” phillips screws, 2

• Control Knob • Wire Tie

• Retaining Nut • Snapstat

• Snapstat Bracket

• Blower Assembly w/ Rheostat Control & Snapstat

1. Remove the rear fan cover by removing the four (4)
screws holding the cover in place on the rear shroud.
(Fig. 13) Retain the screws for future use.

2. Attach the Snapstat to the bracket using two (2) #10 x
1/2” Phillips screws. (Fig. 14)

3. Locate and remove the 1/4-20 x 3/8” hex head bolt in-

stalled in the hole in the right rear ledge of the rebox. (A,

Fig. 14) Use that bolt to secure the snapstat bracket to

the rebox. The mounting hole is slotted to allow you to

adjust the bracket so the snapstat head makes contact

with the rebox surface. (Fig. 14)

4. Attach the fan to the rebox by reusing the two (2) pan

head 1/4-20 screws on the top edge and the two (2) #10
x 1/2” sheet metal screws on the side edges. (Fig. 15)

5. The rheostat control switch attaches to the control panel
plate provided on the front of the stove.

1/2” Sheet
Metal
Screw

Snapstat

Fig. 14 Attach snapstat.

Upper
Flange

#10 x 1/2”
Sheet Metal
Screw

1/4-20 x 3/8”
Screws (2)

#10 x 1/2” Sheet
Metal Screw

Fig. 15 Use screws removed earlier to attach fan kit to rebox.

Snapstat Bracket

KT900

To Control
Valve

KT901

• Insert the switch box shaft through the hole in the

back of the left side of the panel, aligning the locator
pin with the smaller hole in the panel. (Fig. 17)

• Attach the retaining nut to the switch control shaft to

secure it to the plate.

• Attach the control knob to the rheostat shaft.

20306761

13

Intrepid® Direct Vent - Rear Vent Gas Heater

Rheostat

Retaining Nut

KT902

Fig. 16 Correct position of fan skirt installation.

• Use the wire tie to secure the fan and rheostat wire

harnesses together to the tubing under the bottom

of the unit.

Venting System Components

Approved Vent System Components

The Intrepid Heater must be vented to the outdoors
through an adjacent exterior wall or through the roof. The
venting system must be comprised of the appropriate

listed venting components specied on this page. These

parts are available from DuraVent Corporation.
See Figure 4 for dimensions relevant to the standard

minimum-vent kits.

DuraVent Components

www.duravent.com
Phone: [phone], Fax: [phone]

Minimum Horizontal Vent Kit 46DVA-KHC

Venting Component required for:
Basic Straight Through-the-Wall Installation

Horizontal Termination Cap 46DVA-HRC
Vermont Castings Group Zero Clearance
Sleeve (included) 54623
Firestop 46DVA-WFS
Wall Thimble Cover 46DVA-DC
24” Straight (Maximum length) 46DVA24B
Hardware Package (2 req’d) 56167

NOTE: DuraVent Wall Thimble, 46DVA-WT is not ap-
proved for use with this appliance except in noncombus­tible masonry walls.

For corner installation add:
45° Elbow, Blk. 46DVA-E45B

Venting Components

90° Elbow, Blk. 46DVA-E90B*
45° Elbow, Blk. 46DVA-E45B
6" Straight, Blk. 46DVA-06B*
9" Straight, Blk. 46DVA-09B
81⁄2" Pipe Extension, Blk 46DVA-08AB*
16" Pipe Extension, Blk 46DVA-16AB
12" Straight 46DVA-12

Rheostat Knob

Fig. 17 Attach rheostat to bracket.

KT903

24" Straight 46DVA-24B*
36" Straight 46DVA-36B
48" Straight 46DVA-48
Square Horizontal Termination Cap 46DVA-HC
Sconce Horizontal Termination Cap 46DVA-HSC
Round Horizontal Termination Cap 46DVA-HRC
Wall Plate 46DVA-DC*
Vinyl Siding Standoff 46DVA-VSS
Snorkel Termination - 14" 46DVA-SNK14
Snorkel Termination - 36" 46DVA-SNK30
Wall Strap 46DVA-WS
Cathedral Ceiling Support Box 46DVA-CS
Storm Collar 46DVA-SC
Firestop Spacer 46DVA-FS
Flashing 0/12 - 6/12 46DVA-F6
Flashing 6/12 - 12/12 46DVA-F12
Wall Thimble 46DVA-WT*
Wall Thimble Cover (Brass) 3PVP-TKV
Wall Firestop 46DVA-WFS
Attic Insulation Shield 46DVA-IS
Co-Linear Vent Adapter 46DVA-GCL
Steel Chimney Conversion Kit
Kit A (6

5

⁄8" - 85⁄8") 46DVA-KCA

Kit B (65⁄8" - 101⁄2") 46DVA-KCB
Kit C (65⁄8" - 13") 46DVA-KCC
Masonry Chimney Conversion Kit 46DVA-KMC
Vertical Termination Cap (High Wind) 46DVA-VCH

Vertical Termination Cap (Low Prole) 46DVA-VC

*Included in Minimum Horizontal Vent Kit 46DVA-KHC

All DuraVent Straight vent pipe sections have a net
length 11⁄2" (37 mm) less than the nominal dimension;
i.e., a 6” (152 mm) Straight pipe section has an effective
length of 41⁄2" (115 mm).

Refer to the DuraVent website for additional compo­nents. (www.duravent.com)

14

20306761