INSTALLER / CONSUMERSAFETY INFORMATION
PLEASE READ THIS MANUAL
BEFORE INSTALLING AND USINGAPPLIANCE.
WARNING!
IF THE INFORMATION IN THISMANUAL IS NOT FOLLOWED
EXACTLY, A FIRE OR EXPLOSION
MAY RESULT CAUSINGPROPERTY DAMAGE, PERSONALINJURY OR LOSS OF LIFE.

Intrepid® Direct Vent,
Rear Vent Gas Heater

Models:INDVRCB, INDVREB, INDVRMB, INDVRBS,INDVRCH, INDVRVG, INDVRBD, INDVRBB,INDVRCG, INDVRGG, INDVRSG, INDVRBM— Do not store or use gasoline
or other flammable vapors andliquids 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 electric switch; do
not use any phone in your building.

• Immediately call your gas supplierfrom your 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.
This appliance may be installed in anafter market permanently locatedmanufactured (mobile) home where notprohibited by local codes.

12761
Homeowner’s
Intrepid DVInstallation
Cover
6/07
and Operating Manual
DE S I GNThis appliance is only for use with thetype of gas indicated on the rating plate.
This appliance is not convertible for use
with other gases unless a certified kit is
used.

CE

C E RT I F I E D

RTIFI E D

INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
20012761 9/10 Rev. 8

Intrepid® Direct Vent - Rear Vent Gas Heater

Table of Contents
PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING APPLIANCE.
Thank you and congratulations on your purchase of a Vermont Castings stove.
IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follow these
instructions may result in a possible fire hazard and will void the warranty.
Installation &General Information..............................................................................................................3
Operating
Requirements for the Commonwealth of Massachusetts......................................................4
Instructions
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 Specifications................................................................................................................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		General Venting Information - Termination Location........................................................... 11		Termination Clearances......................................................................................................12
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
Operation
Your First Fire......................................................................................................................30
		
Pilot and Burner Inspection.................................................................................................30
		
Flame & Temperature Adjustment.......................................................................................30
		
Flame Characteristics..........................................................................................................31		Lighting and Operating Instructions....................................................................................32
		Troubleshooting...................................................................................................................33
		Fuel Conversion Instructions...............................................................................................34
Maintenance
Annual System Inspection...................................................................................................37		
Logset 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 ...........................................................................................................................................40
Optional Accessories .......................................................................................................................................41
Warranty............................................................................................................................................47
Energuide............................................................................................................................................48



20012761

Intrepid® Direct Vent - Rear Vent Gas Heater

Installation & Operating Instructions
The Intrepid Direct Vent room Heater, Models: INDVRCB, INDVREB, INDVRMB, INDVRBS, INDVRCH, INDVRVG, INDVRBD,INDVRBB, INDVRCG, INDVRGG, INDVRSG, INDVRBM is avented gas appliances listed to ANSI Standard Z21.88-2005 andCSA-2.33-2005 for Vented Room Heaters, and CSA 2.17-M91,
Gas-Fired 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
7 (RF only).
This appliance is only for use with the type of gas indicated on therating plate. This appliance is not convertible for use with othergases unless a certified kit is used.
Installation and replacement of gas piping, gas utilizationequipment or accessories, and repair and servicing of equipment shall be performed only by a qualified agency, preferably
NFI or WETT (Canada) certified. The term “qualified agency”
means any individual, firm, corporation, or company thateither 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 therequirements of the authority having jurisdiction.
The Intrepid Direct Vent Room Heater should be inspected
before use and at least annually by a qualified 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 thegas supply piping system by closing the individual manual shutoff
valve during any pressure testing of the gas supply piping systemat 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 andexit through two separate concentric passages within the samesealed vent system. The system does not use room air to support
combustion. The Direct Vent system permits the gas appliance tobe 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 aproperly installed and maintained venting system can resultin carbon monoxide (CO) poisoning and possible death.

20012761

The Intrepid Direct Vent Room Heater, when installed, must be
electrically grounded in accordance with local codes or, in theabsence 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 locatedout of traffic and away from furniture and draperies.
WARNING: This appliance is hot while in operation. Keepchildren, clothing, and furniture away. Contact may causeburns or ignition of combustible materials.
Children and adults should be alerted to the hazards of highsurface 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 flammable materials should not be placedon 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 flammable vapors
and liquids.
The flow 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 qualified service person.
Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect theappliance and to replace any part of the control system andany gas control which has been under water.
Do not burn wood, trash or any other material for which thisappliance was not designed. This appliance is designed toburn either natural gas or propane only.
This gas appliance must not be connected to a chimney flue
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
Certified to:
ANSI Z21.88b-2008 / CSA Z2.33b-2008
Vented Gas Fireplace Heaters
Proposition 65 Warning: Fuels used in gas, woodburning or
oil fired appliances, and the products of combustion of such
fuels, contain chemicals known to the State of California tocause cancer, birth defects and other reproductive harm.
California Health & Safety Code Sec. 25249.6

Intrepid® Direct Vent - Rear Vent Gas Heater

Installation & Operating Instructions
Requirements for the Commonwealth of
Massachusetts
All gas fitting and installation of this heater shall only bedone by a licensed gas fitter 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 venttermination is less than seven (7) feet above finishedgrade in the area of the venting, including but not limited
to decks and porches, the following requirements shallbe satisfied:Inspection
The state or local gas inspector of the side wall
horizontally vented gas fueled equipment shall not
approve the installation unless, upon inspection, theinspector observes carbon monoxide detectors andsignage 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 entitledInstallation of Carbon Monoxide Detectors
At the time of installation of the side wall horizontal
vented gas fueled equipment, the installing plumber
or gas fitter 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 qualified 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 withalarm and battery back-up may be installed on the next
adjacent floor 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, abattery operated carbon monoxide detector with analarm shall be installed.

Approved Carbon Monoxide Detectors
Each carbon monoxide detector as required inaccordance with the above provisions shall comply with
NFPA 720 and ANSI/UL 2034 listed and IAS certified.

•

MANUFACTURER REQUIREMENTS
Gas Equipment Venting System Provided
When the manufacturer of Product Approved sidewall horizontally vented gas equipment provides aventing system design or venting system components
with the equipment, the instructions provided by the
manufacturer for installation of the equipment and theventing 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 sidewall horizontally vented gas fueled equipment does
not provide the parts for venting the flue gases, but
identifies “special venting systems”, the following
requirements shall be satisfied by the manufacturer:• The referenced “special venting system” instructions

Signage
A metal or plastic identification plate shall bepermanently mounted to the exterior of the building at
a minimum height of eight (8) feet above grade directlyin 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”.

“Equipment Not Required To Be Vented” in the mostcurrent edition of NFPA 54 as adopted by the Board;andProduct Approved side wall horizontally vented gas
fueled equipment installed in a room or structure
separate from the dwelling, building or structureused in whole or in part for residential purposes.

•

shall be included with the appliance or equipment
installation instructions; andThe “special venting systems” shall be ProductApproved by the Board, and the instructions forthat system shall include a parts list and detailed
installation instructions.

A copy of all installation instructions for all ProductApproved 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 orequipment at the completion of the installation.
20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
Stove Dimensions - Intrepid Direct Vent Gas Heater

656O”(165 mm)16(6QE”(418 mm)

CL
Valve
Inlet

216QE” (538 mm)

13556QE” (347 mm)

216 "(543 mm)

2456M”(616 mm)Centerline
of Flue Pipe

18”(457 mm)
Valve Inlet
CL
4”(102 mm)
216M” (553 mm)

13(6 ” (352 mm)
Fig. 1 Intrepid dimensions.

12761
Intrepid DV
dimensions
6/07

20012761

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 NaturalGas, and 10 inches w.c. for Propane).
In Canada, installation must be in accordance with thecurrent CSA B-149.1 Installation Codes and/or local
codes.
The installation should be done by a qualified service person who is familiar with the building codes
and installation techniques appropriate for yourarea to accomplish a safe and effective installation.
Your dealer or your local gas supplier will be able torefer a qualified service person.
WARNING: Due to high temperatures, theHEATER should be located out of traffic
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 inuse, and they should be taught to avoid the hot
surface. Keep any objects that can burn well awayfrom the Heater, and observe the recommended
clearances that follow.

 7!2.).'(/4 ',!33 7),,#!53% "52.3
$/ ./4 4/5#( ',!33
5.4), #//,%$
.%6%2 !,,/7 #(),$2%.
4/ 4/5#( ',!33

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 thebinders in the wallpaper adhesive.



A

D

B

C

ST942

Fig. 2 Possible stove locations.

Clearance
ST936Requirements
Stardance rear vent

Minimum Clearances
to Combustible Materials
Stove locations
6/07 asdjt shown in Figures 3, 4 andMeasure side clearances
5 from the outer edge of the cast iron stove top. Measure rear clearances from the outermost surface of thesteel 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.

Warning:• 	Always maintain required clearances(air spaces) to nearby combustibles toprevent fire hazard. Do not fill 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 a2” (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 aseparate solid fuel or gas-burning appliance.
• Refer to the manufacturer’s instructions included with the venting system for complete
installation procedures.

20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
Parallel Installation: Minimum Clearanceand Flue Centerline
Max. Vent
Length24” (610 mm)

C
L

6M"
(476 mm)

Mantel Clearances
Combustible
Mantel or Trim
Materials

A

256O"(64 mm)B
3" (75mm) Min.

Noncombustible
Materials

ST382

4"
(102 mm)

4"(102 mm)

ST947

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

Corner Installation: Minimum Clearanceand Flue Centerline
34756O"(190 mm))NTREPID
0ARALLEL INSTALLATION
Max. Vent
2" (51 mm)
Length 24" (610 mm)

A (Max.)		
B (Min.)9” 		
10¹⁄₂”		
(230 mm)		
(270 mm)7¹⁄₂”		9”		(190 mm)		
(230 mm)
ST382
6”		
7¹⁄₂”		
(152 mm)		
(190 mm)
Pinnacle
4¹⁄₂”		6”		clearances(114mantelmm)		
(152 mm)3”		
4¹⁄₂”		6/13/00
djt(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.

Hearth Requirements

2"(51 mm)ST948

Fig. 4 Corner installation, minimum corner clearance and flue
centerline.

4"(102 mm)
Sidewall/Trim

The Intrepid Heater must be installed on rigid flooring.
When the heater is installed directly on any combustible
surface other than wood flooring, 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.

Wall and Ceiling Clearances
3T
9"
REAR CORNER SPECS(230 mm)Max. Mantel

Width

Refer toFig. 6256O"(63 mm)Rear Wall

ST949

Fig. 5 Alcove and ceiling clearances.

20012761



3T
7ALL#EILING CLEARANCESIntrepid® Direct Vent - Rear Vent Gas Heater
Gas Specifications

Horizontal Termination

				Max. Min.
				
Input Input
Model
Fuel Gas Control BTU/h BTU/hINDVR Series
INDVR Series

Nat
Prop

Millivolt
Millivolt

18,500 12,500
16,000 12,000

Air Shutter Setting
Minimum injector air inlet opening
Model
Natural Gas
LP
INDVR
1/2” Open1/2” Open
Weight: Fully assembled 350 lbs.

Gas Inlet and Manifold Pressures

Except for straight-through the wall vent installations.
The vent must rise vertically a minimum of 24” (610mm)
after the first elbow directly off the back of the unit, before the next elbow. The horizontal run may extend up
to 20’ (6m) and include a vertical rise of up to 40’ (12m).
(Fig. 7) Horizontal termination must also meet the criteria shown in Figures 11 and 12.
• Approved vent systems must terminate above andincluding 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 first elbow directly
off the back of the unit.

Inlet Minimum

Natural5.5” w.c.

LP (Propane)11.0” w.c.

Inlet Maximum

14.0” w.c.

14.0” w.c.

Îä

Manifold Pressure3.5” w.c.

10” w.c.

Ón

Ó
ÓÇ

Input ratings are shown in BTU per hour and are
certified 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 thecurrent ANSI Z223.1/NFPA 54 and/or local codes
having jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations atelevations above 4,500 feet (1,370m).

Ó{
ÓÎ
ÓÓ
Ó£
Óä
£
£n
£È
£x

May use up to
four 90° Elbows(Including elbow
directly off backof unit.)

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£Î
£Ó
££
£ä

n
Ç
È
x

ÊÊ{

Two 90°
ElbowsÊÊÎ

WARNING: Improper installation, adjustment, alteration, service or maintenancecan cause injury or property damage. Referto this manual for correct installation andoperational procedures. For assistance oradditional information consult a qualified
installer, service agency, or the gas supplier.



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

ÓxVertical Run (in feet)

High Elevations

Unacceptable
Venting Configuration

ÓÈMeasured after the first elbow. (Transition elbow)

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.)

Unacceptable
Venting Configuration

Ó
£
ä
£

Ó

Î

{

x

È

Ç

n



£ä ££ £Ó £Î £{ £x £È £Ç £n £ Óä

Horizontal Run (in feet)

ST134fFig. 7 Horizontal vent termination window.

20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
Vertical Termination

Restrictor Plate Adjustment
for Extended Pipe Runs

A vertical vent system must terminate no less than 8’(2.44 m) and no more than 40’ (12 m) above the appliance flue collar. A restrictor plate (supplied) must be
used (where specified) in all vertically terminated ventsystems. NOTE: The restrictor plate supplied withthe vertical termination kit should be discarded. Install restrictor plate according to recommendationsin Figure 10. A vertically terminated vent system mustalso conform to the following criteria:

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 flame appearance.
Optimum flame appearance is a flame that is not subject to tall, dirty yellow flames producing soot or flames
lifting off of the ember bed ports.

• No more than three 90° elbows may be used.
• Two 45° elbows may be substituted for one 90°••

Restrictor Plate Adjustment

elbow. No more than six elbows may be used.
Vent must rise a minimum of 2 feet before offset isused.
Termination height must conform to roof clearance
as specified in Figure 11.

1. Remove the logs if installed.
2. Remove the adjustment screw in the back wall of thefirebox.
3. Install restrictor plate as shown in Figure 9 with
angle on plate on the top right side. Secure withadjustment screw.
4. Adjust restrictor according to examples in Figure 10.
5. Install logs following log installation instructions.

{ä
Î
În
ÎÇ
ÎÈ
Îx
Î{
ÎÎ

All Vertical
Terminations inthis area Require use of the
Restrictor Plate*

Restrictor Plate

Vertical Run (in feet)(Measured after the first elbow. (Transition elbow)

ÎÓ
Î£
Îä
Ó
Ón
ÓÇ
ÓÈ
Óx
Ó{
ÓÎ

Vertical terminations
must be within this area

ST132fPinstarVerticalvent run
10/9/00 djt

ÓÓ
Ó£
Óä
£

ST936

£n
£È

Fig. 9 Restrictor plate.

Unacceptable
Venting Configuration£x

Examples for Extended Run/Restrictor Plate Settings- top of plate to center34
of bolt
3$$64
RESTRICTOR
PLATE
1. 90° elbow, 40’ (12 m)
vertical- 2M\,” (73mm)

2. 90° elbow, 20’ (6 m) vertical, 90° elbow, 8’ (2.4 m) horizontal - 2M\,” (73 mm)

£{
£Î
£Ó
££
£ä

n

No Restrictor
Plate

Figure 10

Ç
È
x
ÊÊ{
ÊÊÎ
Ó
£
ä
£

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{

x

È

Ç

n



£ä ££ £Ó £Î £{ £x £È £Ç £n £

Horizontal Run (in feet)Óä

ST132gFig. 8 Vertical vent termination window.

20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
Vent Termination Clearances
When planning the installation, consider the locationof the vent terminal and clearances. Some of the mostcommon 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 beburned 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 awayfrom 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 interferewith the draft.

Other factors that influence where the installation will
be sited include the location of outside walls, where
additional heat may be desired in the home, where thefamily members gather most regularly, and perhaps
most importantly, the distance limitations of the venting
system.

Your stove is approved to be vented either through theside wall, or vertical through the roof.
• MHSC does not require any opening for inspection of vent pipe.
• Only venting components specifically approved
and labelled for this stove may be used.
• Minimum clearances between vent pipes andcombustible materials is one (1”) inch (25mm),
except where stated otherwise.
• Venting terminals shall not be recessed into a wall orsiding.
• 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 snowor 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 venttermination 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•10vent termination.
Clearances around the vent termination must be
maintained.

20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
General Venting Information - Termination Location
INSIDECORNER DETAIL
G
V

H

A

N

N

D

L

V

E
C
B

B

V
F

Ýi`
Ãi`

Ope
ra

Operableble

V
B

CFM145a

V VENT TERMINATION

		

B

V

B

V

V

Fixed
ClosedB

J

X

X AIR SUPPLY INLET

M
I

A

V

K

X

AREA WHERE TERMINAL IS NOT PERMITTEDCanadian Installations1

US Installations2

CFM145a12”(30cm)		
DV Termin Location
5/01/01 Rev. 12/05/01
sta

A = Clearance above grade, veranda, porch,12” (30cm)
		deck, or balcony
B = Clearance to window or door that may be6” (15cm) for appliances6” (15cm) for appliances		
opened< 10,000Btuh (3kW), 12” (30cm)< 10,000 Btuh (3kW), 9”
			
for appliances > 10,000 Btuh (3kW) and(23cm) for appliances > 10,000
			< 100,000 Btuh (30kW), 36” (91cm)
Btuh (3kW) and < 50,000 Btuh			
for appliances > 100,000 Btuh (30kW)(15kW), 12” (30cm) for					
appliances > 50,000 Btuh (15kW)
C = Clearance to permanently closed window12” (305mm) recommended to12” (305mm) recommended to			prevent window condensation
prevent window condensation
D = Vertical clearance to ventilated soffit located		
above the terminal within a horizontal
18” (458mm)		
18” (458mm)
		
distance of 2’ (610mm) from the center		line of the terminal
E = Clearance to unventilated soffit12” (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		
see next page
H = Clearance to each inside of center line
3’ (91cm) within a height of 15’ (5m)
3’ (91cm) within a height of 15’
		extended above meter/regulator assembly
above the meter/regulator assembly(5m)above the meter/regulator
					
assy
I = Clearance to service regulator vent outlet
3’ (91cm)		
3’ (91cm)
J = Clearance to nonmechanical air supply inlet 6” (15cm) for appliances < 10,000
6” (15cm) for appliances		
to building or the combustion air inlet to any Btuh (3kW), 12” (30cm) for< 10,000 Btuh (3kW), 9”		other appliances
appliances > 10,000 Btuh (3kW) and <(23cm) for appliances > 10,000
			100,000 Btuh (30kW), 36” (91cm)
Btuh (3kW) and < 50,000 Btuh			
for appliances > 100,000 Btuh (30kW)(15kW), 12” (30cm) for					
appliances > 50,000 Btuh (15kW)
K = Clearance to a mechanical air supply inlet
6’ (1.83m)		
3’ (91cm) above if within 10’
					(3m) horizontally
L = Clearance above paved sidewalk or paved 7’ (2.13m)†		
7’ (2.13m)†		driveway located on public property
M = Clearance under veranda, porch, deck or
12” (30cm)‡		12” (30cm)‡
		balcony				N = Clearance above a roof shall extend a minimum of 24” (610mm) above the highest point when it passes through the roof 		
surface, and any other obstruction within a horizontal distance of 18” (450mm).
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 bothdwellings
	‡ only permitted if veranda, porch, deck or balcony is fully open on a minimum 2 sides beneath the floor:
NOTE: 1. Local codes or regulations may require different clearances.
		 2. The special venting system used on Direct Vent Stoves are certified as part of the appliance, with clearances tested and approved by the		 listing agency.
		 3. MHSC assumes no responsibility for the improper performance of the appliance when the venting system does not 			meet these requirements.

Fig. 11 Vent termination clearances.

20012761

11

Intrepid® Direct Vent - Rear Vent Gas Heater
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
Alcove Applications*
Inside Corner
Outside CornerG=
Combustible
6" (152 mm)

G

F=
Combustible
6" (152 mm)
Noncombustible2" (51 mm)

V

Noncombustible2" (51 mm)

V

F

Balcony with perpendicular side wall

Balcony with no side wall

D

C

C
V

E
O

E = Min. 6” (152 mm) for
non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls
O = 8’ (2.4 m) Min.

M

M
V

V

P
M=
Combustible &Noncombustible12" (305 mm)

Combustible &Noncombustible
M = 24" (610 mm)
P = 20” (508 mm)

No.
of Caps		
DMin.		 CMax.
1
3’ (914 mm) 2 x DActual
2
6’ (1.8 m)
1 x DActual3
9’ (2.7 m)
2/3 x DActual
412’ (3.7 m)
1/2 x DActual
DMin. = # of Termination caps x 3
CMax. = (2 / # termination caps) x DActual

584-15*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions
specified for vinyl or non-vinyl siding and soffits. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All
mechanical air intakes within 10’ (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.

12

20012761

Intrepid® Direct Vent - Rear Vent Gas Heater

Installation
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.

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

Place enamelled castings on a soft, cushioned surface until you are ready to assemble.
Avoid contact between the castings and other hardsurfaces or objects.
NOTE: Verify the two relief doors (located on top of
the firebox) are properly seated on the gasket. The
doors sit flush on the gasket, and should lift easily
from the seal around the opening.
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

KT899

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

KT899

1/4-20 x 3/8’
Phillips Screw FK30 remove coverA
6/07

1/2” Sheet
Metal
Screw

Fan Kit Contents:

•
•
•
•
•

#10 x 1/2” phillips screws, 2Control 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 rearshroud. (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
installed in the hole in the right rear ledge of the firebox. (A, Fig. 14) Use that bolt to secure the snapstat
bracket to the firebox. The mounting hole is slotted toallow you to adjust the bracket so the snapstat head
makes contact with the firebox surface. (Fig. 14)
4. Attach the fan to the firebox 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)

Snapstat

KT900

Fig. 14 Attach snapstat.
Upper
Flange#10 x 1/2”
Sheet Metal
Screw

+4
ATTACH SNAPSTATTo Control
Valve

1/4-20 x 3/8”
Screws (2)#10 x 1/2” Sheet
Metal Screw

KT901

Fig. 15 Use screws removed earlier to attach fan kit to
firebox.

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

• Insert the switch box shaft through the hole in the•

20012761

Snapstat Bracket

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.
13

Intrepid® Direct Vent - Rear Vent Gas Heater

Rheostat

Retaining Nut
Rheostat Knob
KT902

Fig. 17 Attach rheostat to bracket.

Fig. 16 Correct position of fan skirt installation.

• Attach the control knob to the rheostat shaft.
• Use the wiretie to secure the fan and rheostat
ST240

wire harnesses
togetherto the tubing under the
FDV attachfanbottom of12/13/99
the unit.
djt

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 specified on this page.
These parts are available from DuraVent Corporation.
See Figure 4 for dimensions relevant to the standard
minimum-vent kits.
Simpson DuraVent Components
www.duravent.com
Phone: 1-800-835-4429, Fax: 1-707-446-4740
Minimum Horizontal Vent Kit

46DVA-KHC

Venting Component required for:
Basic Straight Through-the-Wall Installation
Horizontal Termination Cap
46DVA-HRC
MHSC Zero Clearance Sleeve (included)
54623
Firestop
46DVA-WFS
Wall Thimble Cover
46DVA-DC24” Straight (Maximum length)
46DVA24B
Hardware Package (2 req’d)56167
NOTE: Simpson DuraVent Wall Thimble, 46DVA-WT
is not approved for use with this appliance except innoncombustible masonry walls.
For corner installation add:
45° Elbow, Blk.
Venting Components

46DVA-E45B

90° Elbow, Blk.
45° Elbow, Blk.
6” Straight, Blk.
9” Straight, Blk.
8Z\x” Pipe Extension, Blk
16” Pipe Extension, Blk
12” Straight

46DVA-E90B*
46DVA-E45B
46DVA-06B*
46DVA-09B
46DVA-08AB*
46DVA-16AB
46DVA-12

14

KT903

ST347aJUV
FK28
rheostat install
9/21/00

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-TKVWall Firestop
46DVA-WFS
Attic Insulation Shield
46DVA-IS
Steel Chimney Conversion Kit
Kit A (6B\,” - 8B\,”)
46DVA-KCA
Kit B (6B\,” - 10Z\x”)
46DVA-KCB
Kit C (6B\,” - 13”)
46DVA-KCC
Masonry Chimney Conversion Kit
46DVA-KMC
Vertical Termination Cap (High Wind)46DVA-VCH
Vertical Termination Cap (Low Profile)
46DVA-VC*Included in Minimum Horizontal Vent Kit 46DVA-KHC
All DuraVent Straight vent pipe sections have a net
length 1Z\x” (37 mm) less than the nominal dimension;i.e., a 6” (152 mm) Straight pipe section has an effective length of 4Z\x” (115 mm).
Refer to Simpson Duravent website for additional components. (www.duravent.com)
20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
Venting System Assembly

Square Horizontal
Termination

Figure 18

General Information
The Intrepid is approved for installation only with the
Simpson vent components listed on Page 14. Follow
these and the vent component instructions exactly.
For U.S. installations: The venting system must conform with local codes and/or the current National Fuel
Gas Code, ANSI Z223.1/NFPA 54

Zero Clearance Wall Sleeve
Firestop
Round Ceiling Support /Wall Thimble Cover
Pipe Section

For Canadian installations: The venting system must
conform to the current CSA B149.1 installation code.

Options
The Simpson Dura-Vent Direct Vent Pro offers a complete line of component parts for both horizontal andvertical installation. Many items are offered in decorative black as well as galvanized finish. The galvanizedpipe and fittings may be used for concealed locations
such as attics, or spaces where corrosion is a factor,
such as above the roofline. Decorative black painted
sections are recommended for use on visible interior
runs. Decorative brass trim kits are available for both
Wall Thimbles and Ceiling Support Boxes. Snorkel
Terminations are available for applications which may
require vertical rise on the building exterior.

Planning Your Installation
There are two basic types of Direct Vent Pro installations:
Horizontal Termination (Figs. 18 and 19)
Vertical Terminations (Fig. 20)
When planning your installation, it will be necessary to
select the proper length of vent pipe for your particularrequirement. For horizontal installations, check these
instructions to determine the minimum clearance fromthe rear of the appliance to the wall. It is also important
to note the wall thickness. Select the amount of vertical rise desired or required, for “vertical-to-horizontal”
installations (verify that it is within the minimum andmaximum limits. Refer to Page 7). To determine thelength of vent pipe required for vertical installations,
measure the distance from the appliance flue outlet tothe ceiling, the ceiling thickness, the vertical rise in an
attic or second story, and allow for sufficient vent height
above the roofline. For multi-story applications, firestops
are required at each floor/ceiling level. If an offset isneeded in the attic, additional pipe and elbows will be
required.

ST973

Square Horizontal
Termination Cap
Zero Clearance
Wall Sleeve

Figure 19

34
SIMPSON REAR INSTALL
 Firestop

Pipe Section
90° Elbow
Round Ceiling
Support / Wall
Thimble Cover
Pipe Section

90° Elbow

ST974

20012761

34
SIMPSON THRU
THE WALL

15

Intrepid® Direct Vent - Rear Vent Gas Heater
Vertical HighWind Termination
Cap (shown)

Vent Opening - Combustible Wall
10"(254 mm)

Storm Collar

RoofFlashing

Ceiling Firestop

10"(254 mm)

Framing Detail

Vent Opening - Noncombustible WallRound Ceiling Support /Wall thimble

756O" Dia.
(190 mm)VO584-100b

Figure 20

Cathedral
Ceiling Support
Box

Pipe Section

Fig. 21 Locate vent opening. NOTE: Zero clearance sleeve
is required for combustible wall installations.

sleeve end with the holes. (Fig. 22) NOTE: The zeroclearance sleeve is required in combustible walls
only.
3. Install the Wall Firestop/Sleeve assembly into thewall cutout and fasten the firestop to the wall cutout
framing members.VO584-100a(Fig. 23)

Vent Opening
djt Firestop

10” x 10” (254 x 254 mm)
Wall Opening
7/07
90°Elbow

Zero Clearance Sleeve- Seal AroundST975

Rear Vent
Use components listed on Page 14 under ‘Basic
34 Installation’ for an installation
Straight through-the-Wall
where the heaterSIMPSON
is parallel to the wall and the ventsystem extends STRAIGHT
straight backUP through that wall.


1. Locate the ventopening on the wall. Refer to Figures
20 & 21 to determine the top of the opening centerline. It may be necessary to first position the stove
and measure to find the hole location. Depending onwhether the wall is made of combustible materials,
cut the opening to the size shown in Figure 21. Combustible wall openings must be framed as shown in
Figure 21.
2. Measure the wall thickness and cut the zero clearance sleeve sections to proper length (MAXIMUM12”). Assemble the sleeve with the #8 sheet metalscrews supplied. Attach the firestop plate to the

Seal AroundTerminal

Wall Plate

1856M"(464 mm)toCenter ofOpening
All Components Must
Remain Concentric

ST950

Fig. 22 Intrepid minimum horizontal rear vent installation.
12”(305mm)Max. Length

SleeveST950
install pipe thru wall
7/07

#8 Sheet
Metal Screws

Firestop

ZCS103Fig. 23 Assemble the wall sleeve and firestop.

16

20012761
ZCS103
Zero Clearance Sleeve& Firestop

Intrepid® Direct Vent - Rear Vent Gas Heater
4. Slip the wall cover over the interior end of the horizontal pipe and install into the zero clearance sleeve.
Seal the joint inside the wall plate if needed to keep
cold air from being drawn into the home.
5. Install the vent terminal. (Fig. 22) Guide the innerand outer vent termination collars into the adjacentpipes. Double check that the vent pipes overlap thecollars by 2”. Fasten the termination to the outside
wall with the screws provided, and caulk the joint
with weatherproof sealant.
6. Use wall straps to support vertical pipe runs at 4’(1219 mm) intervals.

Horizontal Installation
Step 1. Set the gas appliance in its desired location.
Check to determine if wall studs or roof rafters are in
the way once the venting system is attached. If this is
the case, you may want to adjust the location of theappliance.
Step 2. DirectVent Pro pipe and fittings are designedwith special twist-lock connections. To connect theventing system to the appliance flue outlet, a twist-lockappliance adaptor is built into the appliance at the factory. Assemble the desired combinations of black pipe
sections and elbows to the appliance adapter with pipe
seams oriented towards the wall or floor, as much out ofview as possible. (Fig. 24)
Figure 24

Figure 25

ST977

2. Horizontal vent runs of vent pipe must be supported
to prevent any downward sags. Horizontal pipe sections should be supported
at least every 4’ (1.2 m).
34
Wall straps can be usedforthis purpose.
AlternativeSIMP TWISTLOCKly, plumbers tape or othersuitablenoncombustiblematerial can be used to support the vent pipe.
3. DirectVent Pro venting requires no sealant.
Step 3. With the appliance adapter and pipe section attached, slide the stove into its correct location. Mark thewall for a square hole that measures 10” x 10” (254 x
254 mm). The centerline of the pipe should line up withthe center of the square hole. (Fig. 26) Cut and frame
the square hole in the exterior wall where the vent will
be terminated. If the wall being penetrated is constructed of noncombustible material only, i.e. masonry
block, brick or concrete only, a hole with zero clearance
is acceptable.
Figure 26

Center of
Hole

ST976

Notes:
1. Twist-lock procedure: Line up
locking lugs on male3Tand female ends of pipe sections.
Insert the male
SIMP PIPE
end of pipe into the female end until the locking lugsare covered. Twist the female
end clockwise aneighth of a turn to lock sections together. (Fig. 25)
Screws are not required to secure the joint, but are
acceptable provided they do not penetrate the innerwall of the vent pipe.

20012761

CL

ST978

NOTES:
1. The horizontal run of venting must be level, or havea 1/4” (6 mm) rise for every 1’ (305 mm) of run
3Tallow the vent to run
toward the termination. NeverSIMPSON
downward. A downward slope
canFRAMING
trap heat andbecome a possible fire hazard.
17

Intrepid® Direct Vent - Rear Vent Gas Heater
2. The location of the horizontal vent termination on an
exterior wall must meet all local and national building
codes, and must not be easily blocked or obstructed.
Refer to Pages 10 and 11 for proper Termination
Clearances.
For installations requiring a vertical rise on the exteriorof the building, 14” (356 mm) and 36” (914 mm) tallsnorkel terminations are available. (Fig. 27) Follow thesame installation procedures as used for standard horizontal terminations. If the snorkel termination must be
installed below grade level, (i.e. basement application),
proper drainage must be provided to prevent water fromentering the snorkel termination. (Fig. 28) Do not attempt to enclose the snorkel within the wall or any othertype of enclosure.
SnorkelFigure 27

12” (305 mm)
Minimum

4”(102 mm)NOTES:
1. The four (4) wood
Figure 29
screws provided
Woodshould be reScrews
placed with appropriate fasteners
for use on brick,block, concrete orother types of sidings.
2. For buildings withvinyl siding or
stucco, anothercomponent must
be used betweenHOTthe horizontal termination cap andthe wall surface.
ST981
The vinyl siding standoff prevents excessive heat from possibly
melting the vinyl siding material. Vinyl siding standoffs are not required with snorkels. For vinyl wall
ST981
installations a 4-piece vinyl
siding standoff should
SIMP
termination
be assembled and installed
betweenthe horizontal
termination cap and the8/07
exterior wall. (Fig. 30) The
vinyl should be cut away to the outer edges of theassembled standoff.
Figure 30

ST979

SnorkelFigure 28

Cut Back
Siding

4 pc. Vinyl SidingStandoff
Wood Screws(4 Req.)ST979
simpson snorkel
8/07

12” (305 mm)
Minimum4” (102 mm)

Round
Cap
ST982

SconceCap

ST980

Step 4. Position the horizontal termination cap in thecenter of the square
framed hole, and attach to theSt980
exterior wall with thewood screws provided.
simpfoursnork(4)drain
8/07vent termination cap to the exteBefore attaching therior wall, run a bead of non-hardening silicone sealantaround the outside edges to make a seal between thecap and the wall. The arrow on the vent cap should bepointing up. Ensure proper clearances to combustible
materials are maintained. (Fig. 29)
18

Wood Screw

IMPORTANT: You must attach the four (4) pieces of
the new vinyl siding standoff to the horizontal termination cap in specificorder to ensure a weather tight fit.
34
Loosely assemble the four parts, in order, around the
SIMP VINYLSIDINDbase of the horizontal
termination
cap. Place the first offour pieces along
the upper edge of the cap, then using
two (2) screws per side, secure each piece to the predrilled holes along both sides of the cap, finally, attach
the final piece to the bottom edge of the cap. Tighten all
screws and mount cap, with all four (4) pieces attached,directly onto the wall with the four (4) 2Z\x” (64 mm)screws provided. (Fig. 30)

20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
3. When penetrating through stucco wall, install thecounter flashing. The counter flashing allows stucco,
or other materials, to be finished directly to the sidesof the termination cap. First attach the counter flashing to the base of the horizontal termination cap withthe small screws provided, then mount entire assembly onto the wall with the four (4) 2Z\x” (64 mm) woodscrews provided.
4. If the optional copper version of the horizontal termination cap is installed, use an appropriate noncombustible material to avoid direct contact between thegalvanized and copper metals to prevent possible
galvanic reaction.
Step 5. Before connecting your horizontal pipe sections
to the horizontal termination cap, slide the wall thimble
cover over the pipe section nearest the interior side ofwall. (Fig. 31)
Step 6. Slide the appliance and vent assembly towards
the wall, carefully inserting the pipe section into the cap
assembly. It is important the pipe section extends into
the back of the termination cap with a minimum overlapof 1Z\v” (32 mm). Use the two (2) sheet metal screws
provided to secure the pipe section to the back of thetermination cap. The wall thimble cover will cover thescrew heads. (Fig. 31)
Figure 31

Zero Clearance
Wall Sleeve
Sheet Metal
Screws

ST983

Wall Thimble CoverFirestop

Step 7. Slide the wall thimble cover up to the wall surface and attach to the wall with screws provided. (Fig.
32) Apply optional decorative brass trim to wall thimble
cover if desired.

34
Vertical
Installation
WALL THIMBLE
COVER
Step 1. Check these
installation instructions for required clearances (air spaces) to combustibles when
passing through ceilings, walls, roofs, enclosures, attic
rafters or other nearby combustible surfaces. Do notpack air spaces with insulation. Check these instructions for maximum vertical rise of the venting system
and any maximum horizontal offset limitations.
20012761

Figure 32
Wood Screws

ST984

Step 2. Set the gas appliance in the desire location.
Drop a plumb bob down from
Figure 33
the ceiling to the position of
the appliance flue exit, and" themark the location where
vent will penetrate INSTALL
the ceiling.
THIMBLE COVER
Drill a small hole atthis point.
Next, drop a plumb bob fromthe roof to the hole previouslyMark Location
drilled in the ceiling, and markthe spot where the vent will
Mark and Drill
penetrate the roof. (Fig. 33)
Determine if ceiling joists,
roof rafters, framing or othermaterials will obstruct theventing system. You may wish
to relocate the appliance or to
Plumb Bob
offset, to avoid cutting loadbearing members.
Step 3. To install the roundceiling support/wall thimble
cover in a flat ceiling, cut a10” x 10” (254 x 254 mm)
square hole in the ceiling(unless otherwise specified)centered on the hole drilledin Step 2. Frame the hole asshown in Figure 34.

ST985

Step 4. If the twist-lock appliance adapter has not been
installed on the stove, do so now.
34Step 5. Assemble the desired pipe
sections and elbows
STRAIGHTadapter
UP LOCAT up
necessary to reach from the appliance
through the round ceiling cover or support box. Ensurethat all pipe and elbow connections are in their fully
twist-locked position.

Step 6. Cut a hole in the roof centered on the small drill
hole placed in the roof in Step 2. The opening should
be of sufficient size to meet the minimum requirements
for clearance to combustibles, as specified. Continue
to assemble pipe sections and elbows as necessary
to reach up through the roof line. Galvanized pipe andelbows may be utilized in the attic, as well as above the19Intrepid® Direct Vent - Rear Vent Gas Heaterroofline. The galvanized finish is desirable
above the roofline, due
to higher corrosion
resistance.

Figure 34

Ceiling
Joists

Cut
and
Frame

NOTES:
1. If exact lengths or
distances must be met
between elbow offsets
or elsewhere, use thepipe extensions to adjust onto standard pipe
sections. (Fig. 35)
Figure 35
Pipe
Extension

Decorative
Ceiling Support
Cover
1Z\x” Wood
Screws

Pipe
Section

ST986

ST987

2. If an offset is necessary34
Figure36
in the attic to34
avoid obPIPES
structions, it THRU
is imporCEILINGtant to support the vent
pipe in order to avoid
Strap
excessive stress on the Wall
/ Plumbers
elbows. Wall straps or
Tapeplumber tape may be
used for this purpose.
(Fig. 36)
3. Wherever possible, use 45°
45° elbows instead of Elbow
90° elbows. The 45°
elbow offers less restriction to the flow of fluegases and intake air.

45°
Elbow

ST988
Step 7. Slip the roof flashing over the pipe section(s)protruding through the roof.
Use a non-hardening sealant between the roof flashing34
and the roofing to prevent water leakage.
Secure the
OFFSETbase of the roof flashing to the roof withroofing nails.
Ensure the roofing material overlaps the
top edge of theroof flashing. (Fig. 38) Verify that you have at least theminimum clearances to combustibles at the roofline andin the attic.

20

Step 8. Continue to add pipe sections until the height ofthe system (before adding the cap) meets the minimumbuilding codes requirements as described in Table 2,
Figure 37. Note that for steep roof pitches, the ventheight must be increased. In high wind conditions,nearby trees, adjoining rooflines, steep Figure 37
Dimension ‘H’pitched roofs andfrom Table 2other similar factorsH
can result in poor
draft, or down drafting. In these cases,
increasing the ventheight or switching to
the high wind termination cap may help
ST989
to solve the problem.
Roof Pitch
Flat 7/12
Over 7/12 to 8/12
Over 8/12 to 9/12
Over 912 to 10/12
Over 10/12 to 11/12
Over 11/12 to 12/12
Over 12/12 to 14/12
Over 14/12 to 16/12
Over 16/12 to 18/12
Over 18/12 to 20/12
Over 20/12 to 21/12

Table 2
Minimum Height
1’ST989(914 mm)chimney height
8/07
1’6” (457 mm)
2’ (610 mm)
2’6” (762 mm)
3’3” (990 mm)
4’(1.2 m)5’(1.5 m)6’(1.8 m)7’(2.1 m)7’3” (2.3 m)
8’(2.4 m)Step 9. Slip the storm collar over the pipe section, andpush it down to the top of the roof flashing. (Fig. 38)
Use non-hardening sealant between the storm collar
and the pipe section
Step 10. Holding the bottom of the termination cap only,
twist lock the cap onto the last pipe section protruding
above the roofline.
NOTES:
1. For multi-story vertical installations, a ceiling firestop
is required at the second floor, and any subsequent
floors. (Fig. 39) Cut and frame a 9” x 9” (229 x 229mm) square opening for installation of the ceilingfirestop.
2. If vent passes through any occupied areas above
the first floor, including closets and storage spaces,
it must be enclosed. The enclosure may be framed
and covered with sheet rock with standard construction materials, but required clearances to combustibles must be maintained. Consult these installation
instructions for the minimum allowable clearances
between the outside of the vent pipe and the combustible surfaces of the enclosure. Do not fill required air spaces with insulation.
20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
High Wind Vertical
Termination

Figure 38

Figure 39

Nails

Attic
Insulation Shield

Storm Collar
Roof Flashing

Required
Clearance
Optional
Low Profile
Termination
Cap

Minimum
Clearance

Secure Flashingwith Non-hardening Sealant andRoofing Nails

Minimum
Clearance
ST991

ST990

3. If venting system passes through an attic space anattic insulation shield must be installed to prevent
contact between pipe sections and the insulation.
Nail the base to floor of
attic and adjust shield for ap34
propriate insulation level, then attach the collar at the
ABOVE ROOF
top of assembly. (Fig. 39) For vaulted ceilings, the be installed. To prevent
attic insulation shield cannot
building insulation and other debris from entering
the support box or contacting the pipe, a chaseenclosure can be constructed around the support
box. Ensure proper clearance to combustibles aremaintained.

Cathedral Ceiling Installation
Step 1. Follow installation Step 1 and 2 under Vertical
Termination.
Step 2. Using the plumb bob, mark the centerline ofthe venting system on the ceiling and drill a small holethrough the ceiling and roof at this point. From the roof,
locate the drill hole and mark the outline of the Cathedral Ceiling Support Box.
Step 3. Remove shingles or other roof covering asnecessary to cut the rectangular hole for the support
box. Cut the hole 1/8” (3 mm) larger than the support
box outline.
Step 4. Lower the support box through the hole in theroof until each side of the bottom of the support box
protrudes at least 2” (51 mm) below the ceiling. (Fig.
20012761

40) Align the support
34box both vertically and horizontallywith a level. Temporarily
the support box in place
ATTIC INSULtack
SHIELDthrough the inside
walls
and
into
the roof sheathing.
Figure 40

Level

Cathedral Ceiling
Support Box
2” Min. Below
Finished Ceiling
ST992

Cut Hole 1/8”
Larger than Support Box

Step 5. Using tin snips, cut the support box from the
top corners down to the roofline, and fold the resulting
flaps over the roof sheathing. The flaps may be trimmed
as needed. (Fig. 41) Before nailing it to the roof, run abead of non-hardening sealant around the support box
34
to make a seal between the support box and the roof.
CLG SUPPORT
BOXfrom inside the supClean out any combustible
material
port box.

Step 6. Follow Steps 4 and 5 of the Vertical Installation
instructions.
Step 7. Place the support clamp (provided with the support box) inside the support box (at the bottom), and secure to the pipe section. The clamp allows the support
box to support the weight of the pipe sections. Continue
to add pipe sections until you are above the roofline.

21

Intrepid® Direct Vent - Rear Vent Gas Heater
4. Inspect joints to verify that no pipe sections or fittings
have been disturbed or loosened. Also check mechanical supports such as wall straps or plumbers
tape for rigidity.

Figure 41

Supplemental Canadian Instructions

ST993

Step 8. Follow Steps 7 through 10 of the Vertical Installation instructions 34
Step 9. Install the black
FLAPS trim collar around the outsideof the Cathedral ceilingsupport box. The two piecesof the trim collar slide over one another to allow foreasy adjustment around the support box. Using the six(6) screws provided, secure the four corners and theoverlapping sections of the trim collar to the undersideof ceiling. You may want to predrill the holes for theoverlapped sections for ease of installation. (Fig. 42)
Ceiling Trim

Figure 42

Overlap

ScrewsGeneral MaintenanceConduct an inspection
34 of the venting system annually.
Recommended
areas
to inspect are as follows:
TRIM
COLLAR
1. Check areasoftheventing system which are
exposed to the elements for corrosion. These will appear as rust spots or streaks, and in extreme cases,
holes. These components should be immediately
replaced.
2. Remove the vertical terminations cap and shine aflashlight down the vent. Remove any bird nests, orother foreign material.
3. Check for evidence of excessive condensation, suchas water droplets forming in the inner liner, and subsequently dripping out at joints. Continuous condensate can cause corrosion of caps, pipe and fittings.
It may be caused by having excessive lateral runs,
too many elbow and exterior portions of the systembeing exposed to cold weather.

22

Vertical Through Existing Chimney
The heater must be vented to the outdoors through anexisting masonry or prefabricated fireplace chimneysystem through the roof.
The heater is approved to be vented to the outdoors
through any solid-fuel fireplace chimney that has been
constructed or installed in accordance with the national, Provincial/State and local building codes and isconstructed of noncombustible materials. For Venting
Requirements, refer to Page 10. Refer to Venting Components on Page 14.

Converting a Class-A Metal Chimney or
Masonry Chimney to a Direct Vent System
Application

Cathedral Ceiling Support Box
ST994

When installing DirectVent Pro on appliances in Canada, a 2-piece decorative wall thimble is required inorder to comply with IR #41. (Fig. 18 and 20) Installgalvanized exterior wall thimble plate on exterior ofbuilding and black decorative wall thimble plate on theinterior side of wall. Install wall thimble centered througha square framed opening in wall. Be sure to maintainall minimum clearances. When installing DirectVent Pro
vertically through floors, a ceiling firestop is required atevery floor/ceiling level.

These instructions apply to the Simpson Dura-Vent
Direct Vent Conversion kits for factory-built Class-A
metal chimneys and masonry chimneys. These venting systems, in combination with the gas appliance,
have been tested and listed by a major testing agency
such as UL, AGA, Omni or Warnock Hersey. Check the
manufacturer’s rating plate and instruction manual toconfirm that a Simpson Dura-Vent Direct Vent Chimney
Conversion system is approved for use on the brandname appliance you have selected.
IMPORTANT
Read all instructions carefully before starting the
installation. Failure to follow these instructions may
create a fire or other safety hazard, and will void thewarranty. Be sure to check the appliance manufacturer’s installation instructions for specific venting
and clearance to combustible requirements, which
may vary from one appliance to another.

Installation Precautions
The Simpson Dura-Vent Direct Vent System is an engineered product that has been designed and tested foruse with an approved list of direct vent gas appliances.
20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
Use Conversion Kit A (#0931) for
the following chimney:
6” ID Metalbestos
6” ID Security Chimney
6” ID Jackes - Evans
6” ID Hart & Cooley
6” ID Pro Jet

General Installation

Use Conversion Kit B (#0932) for
the following chimney:
6” ID Simpson Dura-Vent
7” & 8” ID Metalbestos
7” ID Security Chimney
7” & 8” ID Jackes - Evans7” & 8” ID Hart & Cooley
7” & 8” ID Pro Jet
6” & 7” ID Metal -Fab6” & 7” ID American Metals

A typical direct vent conversion of a factory-built metalchimney is shown in Figure 43. The concept of thedirect vent conversion is to connect an adapter to an
Underwriters Laboratories listed 4” diameter aluminumflex pipe (Simpson Dura-Vent’s DuraFlex is an example of a UL listed flex pipe). The flex is then passed
down through the center of the existing metal chimneysystem. Three sizes of termination caps are available which should fit most sizes and makes of metalchimney systems. The Retro Connector (909B) is thenattached to the bottom of the flex pipe. Both the cap
adapter and retro connector are attached to the existing
chimney with sheet metal screws. The appliance is thenconnected to the chimney with appropriate black direct
vent pipe and an adjustable length section.

Use Conversion Kit C (#0933)
for the following chimney:7” & 8” ID Simpson Dura-Vent
8” ID Air Jet
8” ID Metal Fab
8” ID American Metals

0909B
ST955

The Simpson Dura-Vent warranty will be voided, andserious fire, health or other safety hazards may result
from any of the following actions:Two different types of direct vent conversion systems
are described here. One is through an existing factorybuilt metal chimney going through the ceiling. The otheris through the wall of an existing masonry chimney. Follow the appropriate directions for your situation.

A typical conversion of an existing masonry chimney
is shown in Figure 45. For installation through the wallof an existing masonry chimney, a cap adapter (985K)
and flashing are used at the top of the masonry chimney. The 4” aluminum liner is connected to the adapter
and is passed down the chimney and out through themasonry wall. This is attached to the retro connector(909B) which is in turn, attached to the masonry walland is then connected to the direct vent pipe leading to
the appliance.

• Installation of any damaged Direct Vent component.

• Unauthorized modification of the Direct Vent Sys34tem.
• Installationof any component part not manufac3IMPSONCONVERSION
tured or approved by Simpson Dura-Vent.
KIT• Installation other than as instructed by Simpson Dura-Vent and the appliance manufacturer.
Consult your local building codes before beginning the
installation. Have the existing installation inspected by aqualified chimney sweep or professional installer, prior
to converting to direct vent. The existing chimney system must be in serviceable condition, and functionallysound. The direct vent conversion described herein
applies only to factory-built metal ceiling-supported
type systems and masonry through-the-wall typesystems. NOTE: You cannot install a Conversion Kit
in a through-the-wall type factory-built metal chimney.

20012761

23

Intrepid® Direct Vent - Rear Vent Gas Heater
Figure 43
Converting a Factory-Built Metal Chimney
Termination Cap

Top Adapter
0985K, 0986K or 0987K

Figure 44
Co-Linear Insert
VerticalTerminationCap
Chimney Liner
Termination Kit

3” Flex

Existing Metal
Chimney System

4” Aluminum Flex Pipe

Retro Connector
0909B

Co-Axial to
Co-Linear
Connector

Any Black Direct
Vent Pipe Plus an
Adjustable Length
to Make a Proper
Connector

ST995

34
ST956

24

34
COLINEAR CHIMNEYMETAL CHIM CONV 
20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
Figure 45
Converting a Masonry Chimney
TerminationCap
Top Adapter
Flashing

4” Flex Liner

Retro Connector

Black Direct
Vent Pipe

Figure 46
Top
Adapter

1. Remove the existing chimney cap.
2. Measure the distance fromthe top end of the chimney
to the bottom of the ceiling support box, add 3” toSheetthis measurement and cut
Metal
Screwsa section of 4” flex pipe tothat length (the flex should
already be extended to its
Flex
Pipe
nominal length).
ST957
3. Connect the end of the flex
pipe section to the underside of the cap adapter you
have selected using three (3) sheet34
metal screws.
FLEX46)PIPE TO CAP(Fig.
Figure 47
4. 
Pass the flex
pipe down throughthe center of thechimney system,
and center theadapter on the topof the chimney
pipe. Drill four (4)1/8” diameter holes
through the adapter
and into the chimney top. Insurethat you are in fact,
ST958
Termination
drilling into the metal on Figure 48
Cap
the chimney. Twist-lockthe termination cap (980,
991 or 930) onto the34adapter.
(Figs. 47 and
Sheet48) CAP ONTO ADAPTER
Metal

Screws
5. Pull the flex pipe down
through the ceiling support box, until it protrudes
Drillapproximately 3” (76Four (4)1/8” Diametermm). Connect the flexHolespipe to the retro connector by slipping it into the
ST959
4C\v” (121 mm) diameter
sleeve on the top side of
the connector. Use three (3) sheet metal screws toassemble these two parts.

ST961

20012761

Installation Instructions
for Converting a Factory-Built Metal Chimney

34
MASONRY CONVERT


34
CAP TO ADAPTER


25

Intrepid® Direct Vent - Rear Vent Gas Heater
Figure 49

Figure 50
Sheet Metal
Screws (3)5. Connect the 4” flex
Cut & Bend
Flashing as
liner to the cap adapter
Needed to Fit(985K) using three sheet
Chimney

Existing Ceiling
Support Box
ST960

Sealant Adhesive

Sheet Metal
Screws (3)6. Push the flex pipe back up into the ceiling support
box, center the34
retro connector and attach it to the
support box orSUPPORT
decorative
sleeve for double wallBOX
solid packed pipe, with the sheet metal screws
furnished. The holes in the retro connector are prepunched. (Fig. 49)
7. The connection between the appliance and the retro
connector may be completed with sections of black
direct vent pipe, together with an adjustable length.

Installation Instructions for Converting a
Masonry Chimney
IMPORTANT: The existing masonry flue opening needto have an area of at least 35 square inches (226square mm) to insure proper intake/exhaust flow.
1. Before cutting any holes, assemble the desired sections of black direct vent pipe to determine the centerof the masonry penetration.
2. Once the center point of the penetration has been
determined, cut a 6” (152 mm) diameter hole in themasonry. Be careful, if the hole is too large, the retro
connector might not mount properly. If the hole is too
small, then the appliance might starve for intake air.
If there is a frame wall in front of the masonry wall,
cut and frame a 10” (254 mm) clear square opening
in the wall (centered around the 6” (152 mm) masonry opening). If there is sheet rock only (no studs) infront of the masonry, the 10” (254 mm) clear opening
is still needed, but does not need to be framed. This
allows the retro connector to mount directly on themasonry and provide clearance to the combustibles.
(Fig. 54)
3. Secure the flashing (705C) to the top of the masonrychimney using a bead of non-hardening sealantadhesive. If the flashing is larger than the top of thechimney, then cut and fold flashing as needed to fit
chimney. (Fig. 50)
4. To determine the length of flex required, measurefrom 3” (76 mm) above the top of the flashing down
to the level of the opening. Add to this measurement
the distance from the center of the chimney to out
through the wall. Cut a piece of 4” (102 mm) flex tothis length (the flex should already be extended to its
nominal length).
26

ST962

metal screws. (Fig. 46)
6. Feed the 4” flex liner
through the flashing into
the chimney. Continue
to feed the liner out
through the opening in
the masonry wall.
7. Secure the cap
adapter to the flashing. Use three (3) sheet
metal screws throughthe side of the adapter
into the flange on the
flashing as shown in
Figure 51. Twist-lockthe termination cap

High Wind(980,991, 930) on to
Termination Cap
the cap adapter.
Standard
Termination
8. Attach the flex to the
Cap
34
retro
connector. Use
FLASHING
three sheet metal to attach thescrewsflex liner to the conTop Adapter
nector. (Fig. 52) Mount Figure 51
the retro connector
Sheetto the masonry wallMetalusing masonry bolts.
Screws (3)Re-drill larger holes onconnector as needed.
Flashing
Be careful to insurethat the connector iscentered in the openST963
ing and the mounting
holes line up with the34
masonry wall.
Figure 52
9. Slide the wall 6” Diameter
CAP ADAPTER
thimble cover Opening in(940) over the Masonry Wallretro connecRetro
tor and seConnector
cure the withmasonry bolts
as shown in
Figure 53. If
you have aframed wallin front ofMasonry Bolts (3)ST964
the masonry,(Not included)
use wood
screws tomount the wall thimble cover to the framed wall, over
the retro connector and the 10” (254 mm) square

20012761
34
RETRO TO MASONRYIntrepid® Direct Vent - Rear Vent Gas Heater
Connect the Gas Supply Line

Figure 53

Check the rating plate attached by a steel cable to thefirebox, to confirm that you have the appropriate firebox
for the type of fuel to be used. The Intrepid may be converted from one gas to another using the appropriate
Fuel Conversion Kit listed on Page 42.

Retro Connector

CAUTION
ST965

Wall Thimble Cover
Masonry Bolts (4)(Not included)

framed opening as shown in Figure 54. If needed,34
add a section of
direct vent pipe to the retro connecWALL THIMBLE
tor in order to extend
through the opening in the wall
thimble cover. 10. The connection between the appliance and theretro connector may be completed with the sectionof black direct vent pipe, together with an adjustable
length pipe section.

The Intrepid Heater and the individual shutoff
valves must be disconnected from the gas supply piping during any pressure testing of thatsystem at test pressures in excess of 1/2 psig
(3.5 kPa).
The Intrepid Heater must be isolated from thegas supply piping system by closing the individual manual shutoff valve during any pressure
testing of the gas supply piping system at test
pressure equal to or less than 1/2 psig.
There must be a gas shutoff between the stove
and the supply.

Figure 54

In order to connect Natural Gas, use a fittingwith 3/8” NPT nipple on the valve side and 1/2”
natural gas supply line with a minimum input of
21,000 BTUs at a minimum inlet pressure of 5.5”
w.c.

Stud Wall
10” X 10” Framed
Opening in Wall
Retro Connector

In order to connect Propane, use a fitting with
3/8” NPT nipple on the valve side and 1/2”
propane gas supply line with a minimum inputof 21,000 BTUs at a minimum inlet pressure of11.0” w.c.

Wall Thimble
Cover

Masonry
Chimney
Masonry Bolts(4)(Not included)34
FRAMED WALL THIMBLE


20012761

This appliance should only be connected by a qualified gas technician. Test to
confirm manifold pressures as specified
below.

ST966

In the U.S.: Gas connection should be made in accordance with current National Fuel Gas Code, ANSI
Z223.1/NFPA 54. Since some municipalities haveadditional local codes, be sure to consult your local
authority.
In Canada: consult the local authority and CSA-B149.1
installation code.
Connect the gas supply and test for leaks. Use a mild
soap and water solution applied with a brush no larger
than 1” (25 mm). Never apply soap and water solution
with a spray bottle. Do not use an open flame for leaktesting.

27

Intrepid® Direct Vent - Rear Vent Gas Heater

THIS APPLIANCE SHOULD BE CONNECTED TO
THE GAS SUPPLY ONLY BY A QUALIFIED GASSERVICE TECHNICIAN. FOLLOW ALL LOCALCODES.
THERE MUST BE A GAS SHUT-OFF BETWEENTHE STOVE AND THE SUPPLY.

Complete the Assembly•••

Open the swiveling latches (cams) on the top left
and right corners of the glass frame.
Position the glass and frame against the firebox byplacing the bottom edge on the brackets on the bottom face of the firebox.
Swing the assembly against the firebox, and close
the latches firmly against the pins protruding fromthe firebox top.

TP

PILOT
ADJ

Coversion instructions are provided with each kit andbeginning on Page 34 of this manual.

TPTH

The appliance must only use the gas specified on therating plate, unless converted using a Vermont Castings
Fuel Conversion Kit. Refer to Page 42 for correct Fuel
Conversion Kit for your stove model.

TH

Burner Information

ST228

Fig. 56 Attach switch wires to valve.

Install the Front Plate
ST228

Grasp the Frontattach
Plate switch
and lift it into position, engaging
the two steel tabs at the upper corners behind the adjawires to valve
cent bosses in the Side Plates. (Fig. 57) Seat the Front
12/99
against the Sides so that the tabs at the bottom lip
engage with the notches in the edge of the stove base.
When properly installed, the bottom of the Front Platecannot be pulled away from the sides without also lifting
it up.
If you are installing optional Warming Shelves, do sonow, according to the instructions supplied with that kit.

Install ON/OFF Switch

D

INTREPI

The switch assembly parts are found in the parts bag.
1. Apply wiring harness to the ON/OFF switch terminals then insert into cut out on switch housing. The
ON/OFF switch will ‘snap’ into the cutout. (Fig. 55)
2. Run wires through cut out in side of shroud, underbottom of rear shroud to valve.
3. Using supplied #10 x 1/2” screws, attach switch
housing over cut out opening in rear shroud.
4. Attach wires to valve terminals. (Fig. 56)

Bottom Tabs Engage
Notch in Base

ST967

Fig. 57 Install stove front.

Thermostat Connection
ST967(Optional) R Models Only

Intrepid install front

Use only a thermostat rated for7/07
500 - 750 millivolts.
Check the table below for the appropriate gauge thermostat wire to use for the length of lead required in yourinstallation.

Wire
Harness

Thermostat 		
Wire / Gauge
Maximum Run
18
40 feet20
25 feet22
16 feetSwitchAssembly
Screw
ST1120Fig. 55 Attach switch assembly to rear shroud.

28

1. Install the wall thermostat in the desired location andrun the wires to the stove location. Terminate theseleads with 1/4” female connectors.
2. Connect the thermostat wires to the valve. (Fig. 56)
This completes assembly of the Intrepid stove.
20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
Install the Log Set
Remove the logs from their packaging and inspect eachpiece for damage. DO NOT INSTALLDAMAGED LOGS.
CAUTION: Before installation, inspect Figure 58
ember bed burner for damage. Do notuse ember bed if damaged or cracked.
NOTE: Small, shallow surface cracks
are acceptable.
1. Install the rear log by matching thenotch on the bottom left of the log
on the raised notch on back left
side of the ember bed. Cutout onbottom right side is clearance forpilot assembly. (Fig. 58) Gently pushright side of log back until it contacts
thermopile on pilot assembly.

Figure 59

Rear Log

LG493

Raised Notch

Pilot Assembly,G
2EAR LOG


Pin

LG497

Figure 60

Left Log

Raised Notch,'
3$$64 EMBER BED


2. Place the left front log on thepin locator on ember bed.
Position the log over the air
inlet hole and on notched out
Right Log
portion of ember bed. (Fig.
60)
3. Place front right log onember bed by mating notchon bottom of log with raised
notch on ember bed. Position
over the air inlet hole and on
notched out portion of ember
bed. (Fig. 60)
LG498

20012761

29

Intrepid® Direct Vent - Rear Vent Gas Heater
Back Log

Figure 61

4. Install top log by mating hole onbottom of log with locating pin
on top right side of rear log. (Fig.
61) Position log so it is angled
down toward the area where thefront two logs meet.

Top Log

Left Log

LG499

Right Log

Ember Bed

Operation
The Intrepid is operated with the operable door front
plate in place with the doors open or closed. To open
the front doors, pull either door toward you.

,'
)NTREPID LOGSYour First Fire
Read these instructions carefully and familiarize
yourself with the burner controls shown in Figure 62.
Locate the pilot assembly, Figure 63. Follow the lighting
instructions on Page 32 exactly.
During the first fire, it is not unusual to smell someodor associated with new logs, paint and metal being
heated. Odors should dissipate within a few hours. You
can open a window to provide fresh air to alleviate thecondition.
Inlet Pressure Tap
Manifold Pressure TapÊÊÊÊÊÊ

ÊÊÊÊÊÊÊÊÊÊÊÊÊÊ" Ê

ÊÊÊÊÊÊÊÊÊÊ ÊÊ"

TH

ÊÊ

TP

ÊÊ

ÊÊÊ

" ÊÊÊ

ÊÊ

Regulator
Control KnobÊ

Fig. 62 NOVA SIT valve control.

30

Fig. 63 Pilot Assembly location.

Pilot and Burner Inspection
ST935
Each time you light yourheater check that the pilot
flame and burner flameSDDVT
pattern are as shown in Figure
65. If flame patterns areincorrect,
turn the heater off.
pilot
locationContact your dealer or 6/07
a qualified gas technician for asFollow regular maintenance procedures as describedon Page 37.

Flame & Temperature Adjustment

"
* /

Pilot Adjustment
Screw

ST935

sistance. Do not operate the heater until the pilot flame
is correct.

ÊÊ

THTP
"
Ê Ê  ÊÊPilot Assembly343)4 VALVE

Gas Control
Knob
ST941

For stoves equipped with HI/LO valves, flame adjustment is accomplished by rotating the HI/LO adjustment
knob located near the center of the gas control valve.
(Fig. 64)

20012761

Turncounterclockwise
to increase
flame heightHI

Intrepid® Direct Vent - Rear Vent Gas Heater

LO

Turn clockwise
to decrease
flame height

Flame Characteristics
It is important to periodically perform a visual checkof the pilot and the burner flames. Compare them to
Figure 65.
If any of the flames appear abnormal call a service
person.

Fig. 64 Flame adjustment knob for SIT valve.

FP390
FLAME ADJUSTMENT KNOB
11/21/96

PSE Pilot

ST233

ST233
pilot
12/9/99 djt

SIT Pilot

CO105dCO105dPilot flame
6/07 djt

LG500

Fig. 65 Correct pilot and burner flame patterns.

Extension Knobs
On/Off and Hi/Lo control knob extensions have been included in the finish bag. These may be installed on theappropriate knob by aligning the notch on the existing ,'
knob (Fig. 62) with the tab on the inside of the exten- )NTREPID LOG FLAMES
sion knob (Fig. 66) Push the extension knob as far as itwill go onto the existing knob.

Tab - align with notchon existing knob

St972

Fig. 66 Extension knob.

20012761

31

34
EXTENSION KNOBS

Intrepid® Direct Vent - Rear Vent Gas Heater

Lighting and Operating Instructions
FOR YOUR SAFETY READ BEFORE LIGHTINGWARNING:If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
A. This heater has a pilot which must be lit manually.
When lighting the pilot follow these
instructions exactly.
B. BEFORE LIGHTING smell all around the heaterarea for gas. Be sure to smell next to the floor
because some gas is heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL GAS• Do not try to light any fireplace• Do not touch any electric switch• Do not use any phone in your building• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

•If you cannot reach your gas supplier, call theFire Department
C. Use only your hand to push in or turn the gas
control knob. Never use tools. If the knob will notpush in or turn by hand, do not try to repair it, call aqualified service technician. Applying force or any
attempted repair may result in a fire or explosion.
D. Do not use this fireplace if any part has been underwater. Immediately call a qualified service technician to inspect the heater and to replace any part ofthe control system and any gas control which has
been under water.

Lighting Instructions
1. STOP! Read the safety information above.
2. Turn off all electrical power to the fireplace.
3. Turn the On/Off switch to “OFF” position, set
the remote to OFF or set thermostat to lowest
level.
4. Open control access panel.
5. Push in gas control knob slightly and turnclockwise
to “OFF”.
T
LO

ON

OFF

P
OFF ilot3/8" - 1/2"

OFF

PI
ON

1 2

OFF

PILOT

10. Push the control knob all the way in and hold.
Immediately light the pilot by repeatedly depressing the piezo spark ignitor until a flame appears.
Continue to hold the control knob in for about one(1) minute after the pilot is lit. Release knob and it
will pop back up. Pilot should remain lit. If it goesout, repeat steps 5 through 8.

3 4 5

SIT NOVA

Honeywell

6. Remove glass door before lighting pilot. (SeeGlass Frame Removal section).
7. Wait fiveFP1067(5) minutes to clear out any gas. Thensmell forlighting
gas, instruction
including near the floor. If you
knobs
smell gas,
STOP!
Follow “B” in the safety infor3/9/01 djt
mation above. If you do not smell gas, go to thenext step.
8. Visibly locate pilot by the main burner.
9. Turn knob on gas control counterclockwise
to “PILOT”.

•
If knob does not pop up when released, stopand immediately call your service technician orgas supplier.
FP1068•If after several tries, the pilotLighting
will not instructions
stay lit,
turn the gas control knob to “OFF”Pilots
and call yourservice technician or gas supplier.
11. Replace glass door.
12. Turn gas control knob to “ON” position.
13. Turn the On/Off switch to “ON” position or set
thermostat to desired setting.
14. Turn on all electrical power to the fireplace.

To Turn Off Gas To Heater
1. Turn the On/Off switch to Off position or set thethermostat to lowest setting.
2. Turn off all electric power to the fireplace if
service is to be performed.
32

3. Open control access panel.
4. Push in gas control knob slightly and turn clockwise
to “OFF”. Do not force.
5. Close control access panel.
20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
Troubleshooting the Gas Control System
SIT NOVA 820 MILLIVOLT VALVENOTE: Before trouble shooting the gas control system, be sure external gas shut off is in the “On” position.

Symptom

Possible Causes

Corrective Action

1. Spark ignitor will not light

A. Defective or misaligned electrodeat pilot

Using a match, light pilot. If pilot lights, turn off pilot andpush the red button again. If pilot will not light - checkgap at electrode and pilot-should be 1/8” to have astrong spark.

B. Defective ignitor (Push Button)

2. Pilot will not stay lit after
carefully following lighting
instructions

3. Pilot burning, no gas tomain burner

4. Frequent pilot outage
problem

20012761

With the control knob in the pilot position, push thecontrol knob all the way and hold. Check for spark atelectrode and pilot. If no spark to pilot, and electrodewire is properly connected, replace the battery in theignitor module and try again. Refer to Maintenance
Section. If the problem still exists, replace the ignitor
module box.

A. Defective pilot generator (thermocouple), remote wall switch

Check pilot flame. Must impinge on thermocouple/thermopile. NOTE: This pilot burner assembly utilizes botha thermocouple and a thermopile. The thermocouple
operates the main valve operation (On and Off). Clean
and or adjust pilot for maximum flame impingement on
thermopile and thermocouple.

B. Defective automatic valve

Turn valve knob to “Pilot”. Maintain flow to pilot; millivolt
meter should read greater than 10mV. If the reading
is okay and the pilot does not stay on, replace the gas
valve. NOTE: An interrupter block (not supplied) must
be used to conduct this test.

A. Wall switch or wires defective

Check wall switch and wires for proper connections.
Jumper wire across terminals at wall switch, if burnercomes on, replace defective wall switch.. If okay,
jumper wires across wall switch wires at valve, if burnercomes on, wires are faulty or connections are bad.

B. Thermopile may not be generating sufficient millivoltage

1. Be sure wire connections form thermopile at gas
valve terminals are tight and thermopile is fully
inserted into pilot bracket.
2. One of the wall switch wires may be grounded. Remove wall switch wires form valve terminals if pilot
now stays lit, trace wall switch wiring for ground.
May be grounded to fireplace or gas supply.
3. Check thermopile with millivolt meter. Take readingat thermopile terminals of gas valve. Should read
250-300 millivolts (minimum 150) while holding
valve knob depressed in pilot position and wall
switch “Off”. Replace faulty thermopile if reading is
below specified minimum.

C. Plugged burner orifice

Check burner orifices for debris and remove.

D. Defective automatic valve operator

Turn valve knob to “On”, place wall switch to “On”
millivolt meter should read greater than 150mV. If thereading is okay and the burner does not come on,
replace the gas valve.

A. Pilot flame may be too low or
blowing (high) causing the pilot
safety to drop out

Clean and/or adjust pilot flame for maximum flame
impingement on thermopile and thermocouple.

B. Possible blockage of the ventterminal

Check the vent terminal for blockage (recycling the fluegases).

33

Intrepid® Direct Vent - Rear Vent Gas Heater()()

CAUTION: The gas supply shall be shut off prior
to disconnecting the electrical power, before
proceeding with the conversion.

()

WARNING! This conversion kit shall be installed
by a qualified service agency in accordance withthe manufacturer’s instructions and all applicable codes and requirements of the authority
having jurisdiction. If the information in these
instructions is not followed exactly, a fire, explosion or production of carbon monoxide may
result causing property damage, personal injury
or loss of life. The qualified service agency is
responsible for the proper installation of thiskit. The installation is not proper and complete
until the operation of the converted applianceis checked as specified in the manufacturer’s
instructions supplied with the kit.

nal key-way ofthe screw (Fig.
69), rotate it
Figure 68
Figurecounterclock69
wise until it
is free andextract it.
5. Check that the,/screw is clean
and if necessary remove,/dirt.
6. Flip the screw.
Figure 70(Fig. 70)
7. Using the Al#/
REMOVE SCREW
len wrench as
Figure 71
shown in Figure#/!LLEN WRENCH
71, rotate thescrew clockwise
and tighten until,/
snug.
WARNING: Do
not overtighten
the screw. Recommended togrip the wrench,/by the shortside.
8. Verify that if theconversion is from NG to LP, thescrew must be reassembled#/with the red o-ring vis#/
ible. (Fig. 72)!LLEN WRENCH
TURN SCREW

9. Replace the black protection cap.

WARNING: Check that also the pilot andmain burner injectors are appropriate forthe gas type.
()

Fuel Conversion Instructions

ST226b

Fig. 67 Attach the gas line to the right side of the valve.

Conversion Precautions
Before proceeding, turn control knob on valve to OFF
ST226band turn gas supply OFF.
Turn OFF any electricity that
attach gas line
may be going to the appliance.
6/07 djt

Conversion Procedure
1. Remove stove front. Lift stove front up and thenswing bottom out and away to disengage from thestove body. (Page 37, Fig. 81)
2. Swing open the swiveling latches at the top left andright corners of the glass frame. (Page 38, Fig. 82)
3. Pull the top edge of the glass and frame assemblyaway from the firebox face. Place the assembly outof the way on a flat, padded surface such as a counter protected by a towel.
4. Remove the logset from the firebox.
Valve Conversion
1. Turn control knob to the OFF position, and shut off
the gas supply to the valve.
2. Allow the valve to cool to room temperature.
3. Remove the black protection cap by hand. (Fig. 68)
4. Insert a 5/32” or 4 mm Allen wrench into the hexago34

Figure 72

LP Configuration

Natural Gas
Configuration()

Main
Gas Line()

Gas Supply Inlet,/,/

Red O-ring Visible
Red O-ring NOT Visible

CO141

Pilot Orifice Conversion
1. Locate pilot. (Fig. 73)
2. Replace pilot orifice.
Pilot Type 1
CO141• Remove pilot hood by lifting up. (Fig. 74) Do not
O-ring configuration
remove snap ring to remove pilot hood. NOTE: It is
6/07
not necessary to remove the pilot tube for conversion.
20012761

Intrepid® Direct Vent - Rear Vent Gas Heater

Pilot Hood

Index
Marks
Pilot Bracket
Pilot Assembly

ST935

CO105

Fig. 76 Remove pilot hood. (Your pilot may have a different
appearance.)

Fig. 73 Pilot Assembly location.
Pilot• Remove pilot orifice with Allen wrench. (Fig. 75)• Install the conversion
orifice.
ST935• Reinstall pilot hood. Be sure to align hood with
SDDVT
index tab.
Pilot Hood

CO105
Orifice
Gas Conversion
Pilot
2/15/99 djt

pilot location
6/07

CO106b

Fig. 77 Remove pilot orifice.
Pilot
BracketCO105aFig. 74 Remove pilot hood.
Index Tab

Allen Wrench

Burner Orifice Conversion
CO106a
1. Remove three (3) 3/8” nuts
on bottom side of burnerpan. (Fig. 78)
Gas Conversion
2. Carefully remove ember bed
tilting the right side
Pilotby(Vermont)
up and lifting out toward theright
7/19/99 side
djt of the unit.
(Fig. 79)
Remove Nut

Snap Ring

CO105agas conversion
Pilot
1/28/00 djt

CO106aFig. 75 Remove pilot orifice.

Pilot type 2• Loosen pilot hood turning counterclockwise using a
7/16” wrench. (Fig. 76) NOTE: You may use penetrating oil to prevent pilot hood threads from seizingup.
CO106a• Remove pilot orifice with needlenose pliers. (Fig.
DV360/580
77) NOTE: Use a wrench to hold pilot tube in place
Gas Conversion
while removing the orifice.
Pilot2orifice.
• Install the conversion
1/28/00
djt until mark on pilot• Reinstall pilot hoodand tighten
hood aligns with mark on pilot bracket.

20012761

Bottom View

Remove Nuts

ST918

Fig. 78 Remove three (3) nuts securing ember bed in place.

3. Remove injector orifice from left burner bracket witha 1/2” wrench.
34
4. Install conversion orifice. REMOVE(ReferNUTS
to Table 3)
5. The air shutter is factory set according to table on
Page 7 and should not need adjustment. The air
shutter opening may be verified by measuring as
shown in Figure 80.
35Intrepid® Direct Vent - Rear Vent Gas Heater
Orifice
BracketPem Studs

ST919

Fig. 79 Tilt ember bed slightly to correctly place on venturi
and air shutter.
Orifice
Bracket34
Orifice

Air Shutter
TILT EMBER BED
All Models
1. Replace burner making sure venturi on bottom ofember bed aligns with orifice and is seated properly
on air shutter assembly. (Fig. 79) Make sure burneris slid into place at a slight angle and opposite to
how it was removed. When burner is slid into place,the three (3) pem studs should slide down throughclearance holes into the bottom of the control panel.
2. Thread and tighten 3/8” nuts back onto pem studs
on underneath side of control panel, reversing Step
1 shown in Figure 78.
3. Reinstall logs as per instructions on Page 29.
4. Place conversion label on valve.
5. Replace glass and stove front.
6. Restore gas to system and relight appliance according to Lighting Instructions on Page 32.
7. Leak check the system using a gas leak detector
solution.
8. Relight the main burner in both the “HI” and “LO” positions to verify proper burner ignition and operation.
Conversion is complete.

CO142

Fig. 80 The air shutter setting is 1/2” (13 mm) from the orificebracket to the edge of the air shutter.

#/
AIR SHUTTER MEAS Table 3.
Injector Orifice Size Matrix

Conversion to LP					Input (BTU/h)Kit #Orifice
Part #
Minimum		 Maximum
20012921#56 (.0465”)
30000336
12,000		 16,000
Conversion to Natural Gas
					Input (BTU/h)Kit #Orifice
Part #
Minimum		 Maximum
20012910#47 (.0785”)
20003054
12,500		 18,500

3620012761

Intrepid® Direct Vent - Rear Vent Gas Heater

MaintenanceYour Intrepid Gas Heater will provide years of service
with minimal upkeep. The following procedures will help
ensure that your stove continues to function properly.

 7!2.).'(/4 ',!33 7),,#!53% "52.3

Annual System Inspection
Have the entire heater and venting system inspectedannually by a qualified gas technician. Replace any
worn or broken parts.

Logset and Burner
Cleaning and Inspection
Cleanliness is critical to the proper function of theheater. The logset and burner must all be kept free of
dust and unobstructed by debris. Inspect these areas
before each use and clean as necessary.
1. Turn the burner OFF and let the heater cool completely before cleaning.
2. Lift the Stove Front up and then swing the bottom
out to disengage it from the heater shell. (Fig. 81)
3. Carefully remove the glass and frame assembly andplace it out of the way on a flat, padded surface suchas a counter protected by a towel.
4. Carefully inspect the Logs for damage. Contact yourlocal dealer if any damage is evident. DO NOT OPERATE THE HEATER WITH DAMAGED LOGS.
5. Use a soft bristled brush to sweep dust or debris
from the Logs, Pilot and Burner. Use care as thelogs are fragile and susceptible to damage.
6. Replace the glass panel and frame assembly.
7. Replace the Stove Front.

Care of Cast Iron$/ ./4 4/5#( ',!33
5.4), #//,%$
.%6%2 !,,/7 #(),$2%.
4/ 4/5#( ',!33

Cleaning the GlassWARNING: Let the glass cool completely before attempting to clean.
It will be necessary to clean the glass periodically. During start-up, condensation, which is normal, forms on
the inside of the glass and causes lint, dust and otherairborne particles to cling to the glass surface. Also
initial paint curing may deposit a slight film on the glass.
It is therefore recommended that the glass be cleaned
two or three times with a non-ammonia householdcleaner and warm water (we recommend gas fireplace
glass cleaner). After that the glass should be cleaned
two or three times during each heating season depending on the circumstances present.
Clean glass after first two weeks of operation.

Glass Replacement
Replace glass only with MHSC approved parts. Refer toPage 40 for Replacement Parts. Refer to Figure 82 andprevious instructions for removal of the damaged glass
frame.

An occasional dusting with a dry rag will help keep the
painted surfaces looking new. Use high-temperature
stove paints, available through your local dealer, totouch-up areas as needed. Clean areas to be painted
with a wire brush and be sure to cover the logs, burnerand valve assembly, glass and frame assembly. Apply
the paint sparingly; two light coats of paint will give better results than a single heavy coat.
Clean porcelain enamel surfaces with a soft, damp
cloth. Do not use abrasive cleaning agents. If necessary, use only a cleaning agent formulated especiallyfor use on porcelain enamel surfaces.

CAUTION
TURN THE PILOT OFF BEFORE PAINTING.
ALLOW THE HEATER TO COOL COMPLETELYBEFORE PAINTING.
20012761

ST967

Fig. 81 Remove the stove front.

ST967aRemove Front37
7/07

Intrepid® Direct Vent - Rear Vent Gas Heater
Inspect the Vent System Annually

NOTE: Shown
without top forclarity.

Have the vent system inspected annually by a qualified technician. Shut off the main gas supply before
inspecting the system. Both the inner exhaust pipe andthe outer combustion supply pipe must be checked toconfirm that they are unblocked and in good condition.

Check the Gas Flame Regularly
ST391aFig. 82 Release the latches to release the glass frame.

Gasket Replacement
The Intrepid Gas Heater uses a ‘tadpole’ type gasket
to seal between the glass panel and the frame. In time,
this gasket can become brittle and compressed andshould be replaced. New gasket is available from yourdealer.
Shut off the gas supply and allow the stove to cool.
Wear safety goggles and a dust mask.
1. Remove the Front, Glass Frame and Glass Panel.
(Figs. 81, 82) Remove the old gasket. Use a razor blade to separate the glass and gasket fromthe frame, and to clean the glass of any remaining
cement or bits of gasket. Use a cold chisel if necessary.
2. Determine the correct length of gasket by laying it
ST391aout around the edgeof the glass. Allow an extra 1 2” (25-50 mm). Markthe spot to be cut. Use a utility
Pinnacleknife.
release
3. Starting on a long edge,
removelatches
about 6” of the protective paper strip and
apply
the
flat
adhesive face
6/00
of the gasket around the outside-facing edge of thepanel. Continue around the panel, applying about 6”
at a time and being careful to not stretch the material. Do not overlap the gasket ends. (Fig. 83)
4. Apply a thin bead of high temperature silicone
rubber sealant along the inside corner of the glass
frame, all around the perimeter. Place the flat
gasketed side of the glass panel back into the steel
frame. Pinch the rounded inside-facing gasket material to bulk it up.
5. Replace the glass frame and front panel as previously described.

To ensure the stove is operating properly, check theflames periodically to confirm they match Page 31,
Figure 65. The flames will be blue during the first 15-20
minutes of operation, and will gradually turn to yellow
after that.
Do not use your stove if the flame pattern differs fromthat shown here. Contact your Vermont Castings dealer
or a qualified technician for help.

Stove Disassembly
If there is ever a need to remove the firebox assembly from the stove shell, support the firebox with solid
stands about 6” (152 mm) tall under the left and rightouter edges of the firebox base. Do not set the firebox
assembly directly on the floor; this can damage thecontrol valve and/or the gas lines from the valve to thefirebox.
Before removing the firebox from the shell, disconnect
the on/off switch wires from the valve. If the assembly
includes the optional fan, disconnect the fan rheostat.
If the installation includes a wall thermostat, disconnect
the thermostat leads from valve.
Disconnection and reconnection to the gas line should
only be done by a qualified gas service technician.
Upon reinstallation, the vent system must be sealed to
the firebox as discussed in the venting section. Also
be sure the logs are placed in the firebox correctly, as
shown on Page 29, Figures 58-61.

ST179

Fig. 83 Wrap the gasket material around the outside edge ofthe glass.

38

ST179
glass gasket detail
11/99

20012761

Intrepid® Direct Vent - Rear Vent Gas Heater
Wiring Diagrams
OFF

BL
Millivolt
Gas Valve

TP

Black

TH

ChassisGroundBL

BLK

FAN JUNCTION BOX

St124bon/off/switch
wiring
1/11/00 djt
Thermopile

Black

K

Thermostat(Optional)

Optional Thermostat
Wiring

TP/TH

K

GRN

ST124b
Thermostat(Optional)

BLK

WHT

Thermopile

Black

On/Off Switch
Wiring

TP/TH

FAN

POWER
CORD

ON

Strain Relief
ON / OFF
Rheostat

TP
TH

Black

Snapstat
ST124c

LK

WHT

GRN

NOTE: If any of the original wire, as supplied with the appliance, must be replaced, it must
be replaced with type
St124cSF-2, 200°C wire or its equivalent.

Chassis Ground

RHEOSTAT / SNAPSTAT
BOX
ST153

Schematic Diagram

MOTOR

Black

White

Thermostat
wiring
1/11/00 djt

BLK

B

Fig. 84 On/off switch and optional thermostat circuit.

ST153
rdv connections diag.
Black
Snapstat
10/99
White

Green

White

Black
ON/OFFRHEOSTAT

Power

ST968

Fig. 85 Fan circuit.

20012761

ST236
FK26 wiring diagram
12/99

39

Intrepid® Direct Vent - Rear Vent Gas Heater
2

1

1a

9

3

1b

8

1c
6

5

7

4
10

1d
11

13
21
16

15

12

18

17

14

19

23
20
22

33

26 27

36
25

24a

24b

28

32a,b

31a,b

35
39
37

29

38
40

30

45
41

42
NT

ME

CE

44

46
47

MHSC reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time, without
notice.

Intrepid Direct Vent/Rear Vent Gas Heater:

Models: INDVRCB, INDVREB, INDVRMB,12761
INDVRBS, INDVRCH, INDVRVG, INDVRBD,
Intrepid Rear vent parts
INDVRBB, INDVRCG, INDVRGG, INDVRSG,
7/07 INDVRBM
Ref. Description
1.
1a.
1b.
1c.
1d.
2.
3.
4.

40

Log Set - Complete
Log RearLog Right
Log Left
Log Top
Ember Bed AssemblyTop
Front, Operable Door

Intrepid

20012552
20013111
20012549
20013112
20013113
20012906
Refer to Enamel Parts Chart
Refer to Enamel Parts Chart

20012761

Intrepid® Direct Vent - Rear Vent Gas Heater

Intrepid Direct Vent/Rear Vent Gas Heater: (continued)

Models: INDVRCB, INDVREB, INDVRMB, INDVRBS, INDVRCH, INDVRVG, INDVRBD,INDVRBB, INDVRCG, INDVRGG, INDVRSG, INDVRBM
Ref. Description
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24a.
		
24b.
		
25.
26.
27.
28.
29.
30.
31a.
31b.
32a.
32b.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.

Door Right
Door Left
Left End
Right EndLeg
Door, Control
Hinge, Control Door
Rear Shroud Assembly
Clip, Rear Shroud
Glass Frame Assembly
Glass
Gasket, Glass - Med. Knit
Restrictor Plate
Heat Shield Top
Collar, Duravent
Starter 4”
FK20 Fan Subassembly
Fan Cover Shroud
Valve Nova SIT820.852
Pilot Assembly 3Way N/DV RN 0.199.706
Pilot Assembly 3Way N/DV RP 0.199.703
Pilot, PSE - NA175
Pilot, PSE - LP175
Pilot Top Convertible
Thermocouple 24”
Electrode Ignitor w/Cable SIT24
Thermopile 18” RS
Nut Electrode SIT #0.974.144
Tubing Pilot w/Fittings 1/8 x 24”
Pilot Orifice #62 - NG Top Convertible
Pilot Orifice #35 - LP Top Convertible
Orifice Hood - LP (#56/.0465”)
Orifice Hood - Nat. (.0795”)
Ignitor Piezo w/Nut SIT
Bracket Piezo Ignitor (not shown)
Manifold Assembly
Air Shutter Assembly
Wiring Harness
Trim ON/OFF Switch
Gasket, Control Plate
Gasket, HE Door
Gasket, Flue Collar
Gasket Cement*Magnet, Door (not shown)
Knob Extension - Hi/Lo
Knob Extension - On/Off
Tie Bracket Assembly
Right Burner Support Assembly
Switch Housing

Intrepid
Refer to Enamel Parts Chart
Refer to Enamel Parts Chart
Refer to Enamel Parts Chart
Refer to Enamel Parts Chart
Refer to Enamel Parts Chart
30003945
1601670
30004132
30004002
30004068
30004067
1203702
20013026
30004128
30004131
3000413030004014
20012218
10002264			
10002265
20001115			
20001116
10002266
7531137
10001297
753311357886
10001296
10002268
10002269
30000336
20013155
52464
20010876
20012918
20012517
10002582
30000874
30004200
1203687
30004021
1206122140881855162
55163
20012514
20012909
30005040*Use common super glue or silicone to attach magnets.

20012761

41

Intrepid® Direct Vent - Rear Vent Gas Heater

Intrepid Direct Vent/Rear Vent Gas Heater: (continued)

Models: INDVRCB, INDVREB, INDVRMB, INDVRBS, INDVRCH, INDVRVG, INDVRBD,INDVRBB, INDVRCG, INDVRGG, INDVRSG, INDVRBM
Fuel Conversion Kits
Conversion Kit, NG to LP
Conversion Kit, LP to NG

Kit #20012921
Kit #20012910

Shell Enamel Part Numbers - Intrepid
Color		TopLeft End
Right End
Front
Left Door Right DoorLegClassic
30003930
30003934
30003935
30003931 30003932
30003933
1306333
Biscuit
30004239
30004237
30004238
30004240 30004241
30004242
30003182
Bordeaux
30004257
30004255
30004256
30004258 30004259
30004260
2326333
Brown Majolica
30004921
30004919
30004920
30004922 30004924
30004925
30004918
Chestnut Brown 30004245
30004243
30004244
30004246 30004247
30004248
30003192
Ebony
30004227
30004225
30004226
30004228 30004229
30004230
30003202
Midnight Blue
30004233
30004231
30004232
30004234 30004235
30004236
2376333
Vermont									Classic Green
30004251
30004249
30004250
30004252 30004253
30004254
30003212
Brick Blue
30004263
30004261
30004262
30004264 30004265
30004266
30003545
Country									Cookware Gray
30004269
30004267
30004268
30004270 30004271
30004272
30003555
Granite Gray
30004275
30004273
30004274
30004276 30004277
30004278
30003565
Sage Green
30004281
30004279
30004280
30004282 30004283
30004284
30003575

42

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Intrepid® Direct Vent - Rear Vent Gas Heater

Optional Accessories
Warming Shelf

Fan Kits
FK20 Fan
The fan helps distribute heated air from within thefirebox out into the room. The fan is controlled by asnapstat that turns power on and off as the firebox temperature rises above and falls below a preset temperature. A rheostat provides for variable fan speeds.
Specifications
115 Volt / 60Hz / .75 Amps
Maintenance
The fan itself does not require regular maintenance,
however, periodic cleaning of the fan and the surrounding area is required.
Installation
Refer to Page 13 for installation instructions.

Remote Controls

Warming shelves add versatility to your stove; they canbe used to keep foods warm at mealtime.
Model

Color

0000098
1371
1372
1373
1376
1377
1378
1379

Classic Black
Bordeaux
Midnight Blue
Brown Majolica
BiscuitChestnut Brown
Ebony
Vt. Classic GreenThe shelf installation is completed in three stages. First
attach the shelf loosely to the stove, leaving the screws
loose enough to allow final adjustments. Then, position
the shelf and adjust the brackets so the shelf fits correctly. Finally, tighten the screws.
Refer to the instructions included with each warming
shelf for complete installation procedures.

The remote control allows you to turn the heater on or
off from anywhere in the room. Refer to Page 38 forwiring diagrams. These remote controls are for use on
RN/RP model stoves.
Model Functions Controlled
RC1
ON/OFF
RC2
ON/OFF and Temperature
IMTFK Wall mounted thermostat control

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Intrepid® Direct Vent - Rear Vent Gas Heater

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Intrepid® Direct Vent - Rear Vent Gas Heater

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Intrepid® Direct Vent - Rear Vent Gas Heater

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Intrepid® Direct Vent - Rear Vent Gas Heater

LIMITED LIFETIME WARRANTYPRODUCT COVERED BY THIS WARRANTYAll Vermont Castings brand gas stoves, gas inserts, and gas fireplaces installed in the United States of America
or Canada.
LIMITED LIFETIME WARRANTYMHSC warrants that all cast iron parts, the combustion chamber,ceramic burner, and heat exchanger of every Vermont Castings gas
product will be free of defective material or workmanship during
the period the product is owned by the original owner subject toproof of purchase and the conditions and limitations listed on thiswarranty document.
BASIC ONE-YEAR WARRANTYMHSC warrants to the original owner that your new Vermont
Castings Gas Appliance is free from defects in material orworkmanship for a period of one year from the date of purchase,subject to the following conditions and limitations. Labor to replacethese parts is covered for one year, reimbursed per our warranty
service fee schedule.
COMPONENT WARRANTY LIMITATATIONSPORCELAIN ENAMEL FINISHED PARTS: MHSC offers nowarranty on chipping of enamel surfaces. Inspect all products
prior to accepting them for any damage to the enamel. The salt
air environment of coastal areas or a high humidity environment
can be corrosive to the porcelain enamel finish. These conditions
can cause rusting of the cast iron beneath the porcelain enamel
finish, which will cause the finish to flake off. Color lot variations
with parts and/or accessories can occur and are not covered bywarranty.
GLASS: Glass is not warranted for breakage due to misuse or accident.
Glass is not covered for discoloration or stains due to environmental
issues, or improper cleaning and maintenance.
PLATED PARTS AND ACCESSORIES: Brass, nickel, and gold parts
should be cleaned with Lemon oil only. Commercial cleaners cannot
be used. Mortar mix and masonry cleaners corrode the brassfinish. The MHSC will not be responsible for, nor will it warrant
any brass parts which are damaged by external chemicals or
down draft conditions.
ACCESSORIES: Unless otherwise noted, MHSC supplied accessories
are covered for a period of one year.
GENERAL CONDITIONS AND LIMITATIONS• This Vermont Castings product must be installed or serviced bya qualified installer, preferably NFI or WETT (Canada) certified,
as prescribed by the local jurisdiction. It must be installed andoperated at all times in accordance with the Installation andOperating instructions furnished with the product. Any alteration,
willful abuse, accident, or misuse of the product shall nullify thiswarranty.
• This warranty is non-transferable, and is made to the original
owner, provided that the purchase was made through an authorized
supplier of Vermont Castings branded MHSC products.
• Parts covered under the Limited Lifetime Warranty will be covered
for the lifetime of the appliance up to a maximum of seven (7)years after MHSC discontinues the model. The maximum amountrecoverable under this warranty is limited to the purchase price ofthe product and, if MHSC is unable to provide replacement or repair
in an expedient and cost effective manner, MHSC may discharge
all obligations under this warranty by refunding the purchase priceof the product.
• Any labor and related repair charges relating to the cost andexpenses of replacing or repairing defective components under
the Limited Lifetime Warranty are not covered, except as provided

20012761

for under the Basic One-Year Warranty.
Any part or component replaced under the provisions of thiswarranty is covered for six months or the remainder of the original
warranty, whichever is longest.
• Any installation, labor, construction, transportation, or other related
costs/expenses arising from defective part(s), repair, replacement,or otherwise of same, will not be covered by this warranty, nor shallthe Company assume responsibility for same. IN NO EVENT SHALLMHSC BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES CAUSED BY DEFECTS IN THE PRODUCT except
as provided by law• SOME STATES DO NOT ALLOW FOR THE EXCLUSION
OR LIMITATIONS OF INCIDENTAL AND CONSEQUENTIAL
DAMAGES OR LIMITATIONS ON HOW LONG AN IMPLIEDWARRANTY LASTS, SO THE ABOVE LIMITATIONS MAY NOTAPPLY TO YOUR CIRCUMSTANCES. THIS WARRANTY GIVESYOU SPECIFIC RIGHTS AND YOU MAY HAVE OTHER RIGHTS
WHICH VARY FROM STATE TO STATE.
• All other warranties expressed or implied with respect to the product,its components and accessories, or any obligations/liabilities on
the part of the Company are hereby expressly excluded.
• The Company neither assumes, nor authorizes any third party toassume on its behalf, any other liabilities with respect to the saleof this Vermont Castings product• The warranties as outlined within this document do not apply tochimney components or other non MHSC accessories used inconjunction with the installation of this product.
• Damage to the unit while in transit is not covered by this warranty
but is subject to claim against the common carrier. Contact the
dealer from whom you purchased your fireplace/stove (do not
operate the appliance as this might negate the ability to process
the claim with the carrier).
• The Company will not be responsible for:a) Down drafts or spillage caused by environmental conditions suchas near-by trees, buildings, roof tops, hills, or mountains.
b) Inadequate ventilation or negative air pressure caused bymechanical systems such as furnaces, fans, clothes dryers, etc.
• This warranty is void if:a) The fireplace has been operated in atmospheres contaminatedby chlorine, fluorine, or other damaging chemicals.
b) The fireplace has been subjected to prolonged periods of dampness
or condensationc) Any damages to the fireplace, combustion chamber, heatexchanger or other components due to water, or weather damage,which is the result of but not limited to, improper chimney/venting
installation.
d) Any alteration, willful abuse, accident, or misuse of the producthas occurred.
•

IF WARRANTY SERVICE IS NEEDED...
Contact your installing Vermont Castings dealer. Make sure
you have your warranty, your sales receipt, the model number
and serial number of your MHSC product. If you’re the installingdealer is unknown or unable to provide necessary parts orservice, a list of Authorized Vermont Casting dealers can belocated on the internet at www.vermontcastings.com

47Based on CSA P.4.1-09

Efficiency Ratings
Model
		
INDVR

EnerGuide Ratings
Fireplace Efficiency (%)
68.0

Recherchez dans la brochureles caractéristique de rendementénergétique de foyer au gaz
Énerguide
Based
CSA
P.4.1-09
Selonon
CSA
P.4.1-09

MHSC
149 Cleveland Drive • Paris, Kentucky 40361
www.mhsc.com