Vermont Castings Jefferson 2822 Mounting instructions

INSTALLER / CONSUMER
SAFETY INFORMATION
20002191 11/02 Rev. 10
PLEASE READ THIS MANUAL
BEFORE INSTALLING AND USING
APPLIANCE.
WARNING!
IF THE INFORMATION IN THIS
MANUAL IS NOT FOLLOWED
EXACTLY, A FIRE OR EXPLOSION
MAY RESULT CAUSING PROP-
ERTY DAMAGE, PERSONAL IN-
JURY OR LOSS OF LIFE.
FOR YOUR SAFETY
Installation and service must be per-
formed by a qualified installer, service
agency or the gas suppler.
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 supplier
form your neighbor’s phone. Follow
the gas supplier’s instructions.
•If you cannot reach your gas supplier,
call the fire department.
DO NOT STORE OR USE GASO-
LINE OR OTHER FLAMMABLE
VAPORS AND LIQUIDS IN THE
VICINITY OF THIS OR ANY OTHER
APPLIANCE.
This appliance may be installed in an after
market permanently located manufac-
tured (mobile) home where not prohibited
by local codes.
This appliance is only for use with the
type of gas indicated on the rating plate.
This appliance is not convertible for use
with other gases unless a certified kit is
used.
Jefferson®
Direct Vent/Natural
Vent Gas Heater
Homeowner’s Installation
and Operation Manual
Tested and listed to
ANSI Z21.88b-2001 and CSA-2.33b-2001
INSTALLER: DO NOT DISCARD THIS MANUAL - LEAVE FOR HOMEOWNER
CERTIFIED
D
E
S
I
G
N
C
E
R
T
I
F
I
E
D
Model JDV: 2820, 2822, 2823,
2825, 2827, 2828
410 Admiral Blvd. • Mississauga, Ontario, Canada L5T 2N6 • 905-670-7777
www.majesticproducts.com • www.vermontcastings.com
Vermont Castings, Majestic Products

22
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
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.
Table Of Contents
Installation & Operating Instructions ........................................................................................................... 3
Stove Dimensions ............................................................................................................................. 4
Installation Requirements.................................................................................................................. 5
Locating the Stove ............................................................................................................................ 5
Clearance Requirements .................................................................................................................. 5
Parallel Installation ............................................................................................................................ 6
Corner Installation ............................................................................................................................. 6
Wall and Ceiling Clearances ............................................................................................................. 6
Hearth Requirements ........................................................................................................................ 6
Gas Specifications ............................................................................................................................ 7
Gas Inlet and Manifold Pressures ..................................................................................................... 7
High Elevations ................................................................................................................................. 7
Horizontal Termination - Direct Vent ONLY ...................................................................................... 7
Vertical Termination - Direct Vent ONLY .......................................................................................... 8
Vent Termination Clearances - Direct Vent Only .............................................................................. 9
General Venting Information - Termination Location ...................................................................... 10
Termination Clearances .................................................................................................................. 11
Venting Requirements - Natural Vent ONLY................................................................................... 11
Venting Requirements and Options - Direct Vent ONLY ................................................................ 12
Assembly Procedures
Tools Required ................................................................................................................................ 13
Unpack the Stove ............................................................................................................................ 13
Install Optional Fan ......................................................................................................................... 13
Venting System Assembly - Direct Vent ......................................................................................... 14
Install Vent Adapter Pipe (CFM Components) ................................................................................ 14
Install Vent Adapter Pipe (Simpson Dura-Vent Components) ........................................................ 15
Side Wall Termination Assembly .................................................................................................... 16
Vent Termination Below Grade ....................................................................................................... 17
Vertical (Through the Roof) Vent Assembly .................................................................................... 18
Venting System Assembly - Natural Vent ....................................................................................... 19
Install the Vent Pipe ........................................................................................................................ 19
Install the Log Set ........................................................................................................................... 20
Connect Gas Supply Line ............................................................................................................... 21
Burner Information .......................................................................................................................... 21
Air Shutter Adjustment .................................................................................................................... 21
Complete the Assembly .................................................................................................................. 23
Install ON/OFF Switch..................................................................................................................... 23
Install the Stove Front ..................................................................................................................... 23
Thermostat Connection (Optional) .................................................................................................. 24
Operation
Your First Fire.................................................................................................................................. 25
Pilot and Burner Inspection ............................................................................................................. 25
Flame & Temperature Adjustment ..................................................................................................25
Flame Characteristics...................................................................................................................... 25
Lighting and Operating Instructions ................................................................................................ 26
Troubleshooting - Honeywell #8420 Gas Control System .............................................................. 27
Fuel Conversion Instructions........................................................................................................... 28
Maintenance
Annual System Inspection............................................................................................................... 30
Logset and Burner/Cleaning and Inspection ................................................................................... 30
Care of Cast Iron ............................................................................................................................. 30
Cleaning the Glass .......................................................................................................................... 30
Glass Replacement ......................................................................................................................... 30
Gasket Replacement....................................................................................................................... 31
Inspect the Vent System Annually .................................................................................................. 31
Check the Gas Flame Regularly ..................................................................................................... 31
Stove Dissasembly.......................................................................................................................... 31
Wiring Diagrams.............................................................................................................................. 32
Replacement Parts.......................................................................................................................... 33
Optional Accessories................................................................................................................................... 35
Warranty ........................................................................................................................................................ 36

3
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
The Jefferson Direct Vent/Natural Vent Room Heater,
Model Nos. 2820, 2822, 2823, 2825, 2827 and 2828, is a
vented gas appliance listed to theANSI Standard Z21.88b-
2001 and CSA-2.33b-2001 for Vented Room Heaters, and
CSA2.17-M91, Gas-FiredAppliances For Use at HighAlti-
tudes.
Theinstallationof the Jefferson DirectVent/NaturalVent
Room Heater must conform with local codes, or in the ab-
sence of local codes, with National Fuel Gas Code, ANSI
Z223.1—latesteditionandCSA B-149.1 Installation Code.
(EXCEPTION: Do not derate this appliance for altitude.
Maintain the manifold pressure at 3.5 inches w.c. for Natu-
ral Gas and 10 inches w.c. for LP gas at maximum input.)
This appliance is only for use with the type of gas indi-
cated on the rating plate. This appliance is not convertible
for use with other gases unless a certified kit is used.
Installation and replacement of gas piping, gas
utilization equipment or accessories, and repair and
servicing of equipment shall be performed only by a
qualified agency. The term “qualified agency” means
anyindividual,firm,corporation,orcompanythateither
in person or through a representative is engaged in
andisresponsiblefor (a)installationorreplacementof
gas piping, or (b), the connection, installation, repair,
or servicing of equipment, who is experienced in such
work, familiar with all precautions required, and has
complied with all the requirements of the authority
having jurisdiction.
TheJeffersonDirectVent/NaturalVentRoomHeater
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 Jefferson Direct Vent/Natural Vent Room Heater
and its 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 Jefferson Direct Vent/Natural Vent Room Heater
mustbe isolated from thegassupplypiping system byclos-
ing its individual manual shutoff valve during any pressure
testing of the gas supply piping system at test pressures
equal to or less than 1/2 psig.
'Direct Vent' describes a sealed combustion system in
which incoming outside air for combustion and outgoing
exhaust enter and exit through two separate concentric
passages within the same sealed vent system. The sys-
tem does not use room air to support combustion. The
Direct Vent system permits the gas appliance to be vented
directly to the outside atmosphere through the side of the
house or vertically through the roof. Conventional venting
systems (Natural Vent) take air from the room for combus-
tion and vent the exhaust vertically through the roof to the
atmosphere.
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 con-
nected to a properly installed and maintained venting
system can result in carbon monoxide (CO) poisoning
and possible death.
The Jefferson Direct Vent/Natural Vent Room Heater,
wheninstalled,mustbeelectrically grounded in accordance
with local codes or, in the absence of local codes, with the
National Electrical CodeANSI/NFPA70, (latest edition), or
of the current Canadian Electrical Code C22.1.
Due to high temperatures this appliance should be
located out of traffic and away from furniture and
draperies.
WARNING: Thisapplianceishot while inoperation.
Keep children, clothing, and furniture away. Contact
may cause burns or ignition of combustible materials.
Childrenandadultsshouldbealertedtothehazards
of high surface temperatures and should stay away to
avoidburnsorclothingignition.Youngchildrenshould
be carefully supervised when they are in the same
room as the appliance.
Clothingorotherflammablematerialsshouldnotbe
placed on or near the appliance.
Any safety screen, glass or guard removed for
servicing an appliance must be replaced prior to
operating the appliance.
The appliance area must be kept clear and free from
combustible materials, gasoline, and other 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: DonotoperatetheRoomHeaterwiththe
glasspanelremoved,crackedorbroken.Replacement
of the panel should be done by a licensed or qualified
service person.
Donotusethisapplianceifanyparthasbeenunder
water. Immediately call a qualified service technician
to inspect the appliance and to replace any part of the
control system and any gas control which has been
under water.
Do not burn wood, trash or any other material for
whichthisappliancewasnotdesigned.Thisappliance
isdesignedtoburneithernaturalgasorpropaneonly.
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.
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
Stateof California tocause cancer, birthdefectsand other
reproductive harm.
California Health & Safety Code Sec. 25249.6
* Aftermarket: Completionofsale,norforpurposeofresale,
from the manufacturer.
Installation & Operating Instructions

44
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
Jefferson Direct Vent/ Natural Vent Stove Dimensions
Attention
The Jefferson stove is shipped from the factory as a Direct Vent Gas Heater. This heater may be converted
into a Natural Vent unit in the field. If a Natural Vent heater is desired, the Vermont Castings Z31D00
FSDHAG Draft Hood must be directly installed to the top of the unit according to the installation
instructions. The Draft Hood Adapter is available in the 7FSKHASK stove kit or as a separate item.
When the Jefferson stove is converted to Natural Vent, it uses 4” vent pipe. For aesthetic purposes the CFM
direct vent system may be used up to the ceiling.
See Page 6 for Flue Collar
Centerline Dimensions.
ST206
Fig. 1 Jefferson dimensions.
28¹⁄₂"
24"
3"
14¹⁄₂"
C
L
8"
Valve
Inlet

5
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
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 - latest edition. (EXCEPTION: Do
not derate this appliance for altitude. Maintain the
manifold pressure at 3.5 inches w.c. for Natural Gas,
and 10 inches w.c. for Propane).
In Canada, installation must be in accordance with the
current CSA B-149.1 Installation Codes and/or local
codes.
The installation should be done by a qualified ser-
vice person who is familiar with the building codes
and installation techniques appropriate for your area
to accomplish a safe and effective installation.
Your dealer or your local gas supplier will be able to
refer a qualified service person.
WARNING: Due to high temperatures, the HEATER
shouldbelocatedoutoftrafficandawayfromfurniture
and draperies.
The surface of the Heater Is hot when it is in use.
Young children should be watched carefully when
they are in the same room when the Heater is in use,
and they should be taught to avoid the hot surface.
Keep any objects that can burn well away from the
Heater, and observe the recommended clearances
that follow.
Locating the Stove
In choosing a location for the stove, consider:
• The location of outside walls;
• Where additional heat is needed:
• Where family members gather most often;
• The vent system requirements.
NOTE: We do not recommend the use of wallpaper next
to this stove. Over time, radiant heat may cause the
wallpaper to shrink, or may adversely affect the binders
in the wallpaper adhesive.
Clearance Requirements
Minimum Clearances to Combustible Materials
Measure side clearances as shown in Figures 3 and 4
from the outer edge of the cast iron stove top. Measure
rear clearances from the outermost surface of the steel
rear skirt.
The Jefferson 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 instal-
lation.
AB
E
C
D
ST207
A. Flat on corner wall
B. Room Divider
C. Island
D. Cross Corner
E. Flat on wall
Fig. 2 Possible stove locations.
Direct Vent System Only
WARNING:
•Always maintain required
clearances (air spaces) to nearby combustibles
to prevent fire hazard. Do not fill air spaces with
insulation. All venting components must
maintain a 1" (25mm) clearance to combustible
materials. Maintain a 6” (150mm) clearance
when using single wall pipe.
•The gas appliance and vent system must be
vented directly to the outside of the building and
never be attached to a chimney serving a
separate solid fuel or gas-burning appliance.
•Refer to the manufacturer's instructions
included with the venting system for complete
installation procedures.

66
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
Parallel Installation:
Minimum Clearance and Flue Centerline,
Direct Vent and Natural Vent
C
L
C
L
B
D
C
A
Stove Clearances A: 4” (102mm)
B: 4” (102mm)
Pipe Centerlines C: 14¹⁄₂” (369mm)
D: 9” (229mm) ST128a
Fig. 3 Parallel installation, minimum back and side clearances,
and flue centerlines.
Hearth Requirements
The Jefferson 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 require-
ments.
A
Wall Thimble Centerline from Floor
A
Effective Minimum
Wall Thimble 58 ¹/₄” (1480mm)(CFM Majestic Pipe)
Centerline 54¹⁄₄” (1378mm) (Simpson DuraVent Pipe)
ST131a
Fig. 5 Minimum wall thimble centerline.
Direct Vent Only
Wall and Ceiling Clearances
* needed for installing DuraVent Minimum Vent Kit #2792 or
CFM/Majestic Minimum Vent Kit #7TFSDVSK.
A
C
D
B
A: Rear Wall 4” (102mm)
B: Min. Clearance 43¹⁄₂” (1105mm)*
C: Min. Alcove Height 72” (1830mm)*
D: Max. Alcove Depth 48” (1220mm)
Sidewall Clearance 4” (102mm)
ST101a
Fig. 6 Dimensions and clearances to ceiling or alcove.
Direct Vent Only
Corner Installation: Minimum Clearance and
Flue Centerline, Direct Vent & Natural Vent
Stove Clearance A: 4” (102mm)
Pipe Centerline B: 14³⁄₄” (375mm) ST129b
Fig. 4 Corner installation, minimum corner clearances and flue
centerline.
A
A
B
B

7
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
Weight: Fully assembled; 350 lbs.
Jefferson Direct Vent/Natural Vent
Certified to:
ANSI Z21.88b-2001 / CSA 2.33b-2001
Vented Gas Fireplace Heaters
The installation of your Vermont Castings stove must
conform with local codes, or in the absence of local
codes, with the National Fuel Gas Code ANSI
Z223.1 - latest edition, or CSA B149.1 Installation
code. (EXCEPTION: Do not derate this appliance for
altitude up to 4,500 feet (1,370m). Maintain the
manifold pressure at 3.5” w.c. for Natural Gas and
10.0” w.c. for LP Gas.
High Elevations
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 the
current ANSI Z223.1 and/or local codes having
jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 4,500 feet (1,370m).
WARNING: Improper installation, adjust-
ment, alteration, service or maintenance can
cause injury or property damage. Refer to
this manual for correct installation and
operational procedures. For assistance or
additional information consult a qualified
installer, service agency, or the gas supplier.
Gas Specifications
Max. Min.
Input Input
Model Fuel Gas Control BTU/h BTU/h
JDVRN Nat Millivolt 28,000 20,000
JDVRP Prop Millivolt 28,000 19,000
Natural LP (Propane)
Inlet Minimum 5.5” w.c. 11.0” w.c.
Inlet Maximum 14.0” w.c. 14.0” w.c.
Manifold Pressure 3.5” w.c. 10.0” w.c.
Gas Inlet and Manifold Pressures
Horizontal Termination -
Direct Vent ONLY
The vent must rise vertically a minimum of 24” (610mm)
off the top of the unit, before the first elbow. The horizon-
tal 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 10 through 12.
•Approved vent systems must terminate above and
including the heavy line in Figure 7.
•Two 45˚ elbows may be substituted for each single
90˚ elbow.
•With a rise between 2' - 6', one 90˚ or two 45˚ elbows
may be used.
ST134a
Fig. 7 Horizontal vent termination window.
20
19
18
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
12 3456789101112 13 14 15 16 17 18 19 20
Vertical Run (in feet)
(Measured from the appliance flue collar to the top of the vent pipe.)
Horizontal Run (in feet)
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
May use up to
three 90°Elbows
One 90°
Elbow Unacceptable
Venting Configuration

88
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
Vertical Termination - Direct Vent ONLY
A vertical vent system must terminate no less than 8'
(2.44m) and no more than 40’ (12m) above the appli-
ance flue collar. A 2¹⁄₄" restrictor plate (supplied) must be
used, where specified, in all vertically terminated vent
systems. (Refer to Figure 8) NOTE: The restrictor plate
supplied with the vertical termination should be
discarded. Install restrictor plate supplied with the
stove directly at stove outlet. A vertically terminated
vent system must also conform to the following criteria:
•No more than two 90˚ elbows may be used.
•Two 45˚ elbows may be substituted for one 90˚ elbow.
No more than six elbows may be used.
•Vent must rise a minimum of 2 feet before offset is used.
•Termination height must conform to roof clearance as
specified in Figure 9.
*The Restictor Plate is used on Direct Vent
installations only.
20
19
18
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
20
12345678910111213141516171819
Vertical Run (in feet)
(Measure from the appliance flue collar to the top of the vent pipe.)
Horizontal Run (in feet)
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
ST132a
Fig. 8 Vertical vent termination window.
ALLVERTICAL
TERMINATIONS
REQUIRE USE
OF THE 2¹⁄₄”
RESTRICTOR
PLATE*
Vertical terminations
must be within this area
Unacceptable
Venting Configuration
No Restrictor Plate
Vent Termination Clearances
When planning the installation, consider the location of
the vent terminal and clearances. Some of the most
common clearances to keep in mind are shown in Figure
10.
Important: All vent clearances must be maintained.
Check your vent termination clearances against
Figures 10 and 11.
The vent should be placed so that people cannot be
burned by accidentally touching the vent surfaces when
the stove is operating.
The vent termination should be located where it cannot
be damaged by such things as automobile doors, lawn
mowers or snowblowers and it should be located away
from areas where it could become blocked by snow, etc.
Some considerations are:
•Obstructions or impediments to venting.
•Nearby combustible materials that could come into
contact with combustion exhaust gases.
•Other nearby openings {within 9" (230mm)} through
which exhaust gas could reenter the building.
•All vegetation within 3' (.9m) that may interfere with
the draft.
Other factors that influence where the installation will be
sited include the location of outside walls, where addi-
tional heat may be desired in the home, where the family
members gather most regularly, and perhaps most
importantly, the distance limitations of the venting
system.
IMPORTANT
Direct Vent Only
•The horizontal termination must not be recessed
into the exterior wall or siding.
•Horizontal vent runs must be level toward the vent
termination.
• Clearances around the vent termination must be
maintained.
•For installations using Simpson DuraVent pipe,
parallel installations with minimum wall clearance
have restricted access for connecting the Horizon-
tal Vent Cap straps to the vent pipe. See the
maker’s instructions for recommended installation
procedures.

9
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
Vent Termination Clearances - Direct Vent ONLY
Your stove is approved to be vented either through the
side wall, or vertical through the roof.
•Vermont Castings, Majestic Products does not
require any opening for inspection of vent pipe.
•Only Vermont Castings, Majestic Products and
Simpson DuraVent venting components specifi-
cally approved and labelled for this stove may be
used.
•Minimum clearances between vent pipes and
combustible materials is one (1") inch (25 mm),
except where stated otherwise.
•Venting terminals shall not be recessed into a wall or
siding.
•Horizontal venting must be installed on a level plane
without an inclining or declining slope.
There must not be any obstruction such as bushes,
garden sheds, fences, decks or utility buildings within
24" from the front of the termination hood.
Do not locate termination hood where excessive snow
or ice build up may occur. Be sure to check vent termi-
nation area after snow falls, and clear to prevent
accidental blockage of venting system. When using
snow blowers, make sure snow is not directed towards
vent termination area.
Location of Vent Termination
It is imperative the vent termination be located observ-
ing the minimum clearances as shown in Figure 9.

1010
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
V
V
V
V
V
V
V
X
X
X
D
E
B
B
B
C
B
M
B
AJK
F
L
VENT TERMINATION AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED
H
I
Fixed
Closed
Fixed
Closed
Operable
Operable Fixed
Closed
V
B
INSIDE
CORNER DETAIL
V
A
G
V
NN
V
V
G
G
A
CFM145a
Fig. 9 Vent termination clearances.
A = Clearance above grade, veranda, porch, 12 inches (30cm) 12 inches (30cm)
deck, or balcony
B = Clearance to window or door that may be 6 in (15cm) for appliances 6 in (15cm) for appliances
opened < 10,000Btuh (3kW), 12 in (30cm) < 10,000 Btuh (3kW), 9 in
for appliances > 10,000 Btuh (3kW) and (23cm) for appliances > 10,000
< 100,000 Btuh (30kW), 36 inches (91cm) Btuh (3kW) and < 50,000 Btuh
for appliances > 100,000 Btuh (30kW) (15kW), 12 in (30cm) for
appliances > 50,000 Btuh (15kW)
C = Clearance to permanently closed window 12” (305mm) recommended to 12” (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 feet (610mm) from the center
line of the terminal
E = Clearance to unventilated soffit 12” (305mm) 12” (305mm)
F = Clearance to outside corner see next page see next page
G = Clearance to inside corner (see next page) see next page see next page
H = Clearance to each inside of center line 3 feet (91cm) within a height of 15 feet 3 ft (91cm) within a height of 15 ft
extended above meter/regulator assembly above the meter/regulator assembly above the meter/regulator assy
I = Clearance to service regulator vent outlet 3 feet (91cm) 3 feet (91cm)
J = Clearance to nonmechanical air supply inlet 6 inches (15cm) for appliances < 10,000 6 inches (15cm) for appliances
to building or the combustion air inlet to any Btuh (3kW), 12 inches (30cm) for < 10,000 Btuh (3kW), 9 inches
other appliances appliances > 10,000 Btuh (3kW) and < (23cm) for appliances > 10,000
100,000 Btuh (30kW), 36 inches (91cm) Btuh (3kW) and < 50,000 Btuh
for appliances > 100,000 Btuh (30kW) (15kW), 12 inches (30cm) for
appliances > 50,000 Btuh (15kW)
K = Clearance to a mechanical air supply inlet 6 feet (1.83m) 3 feet (91cm) above if within 10
feet (3m) horizontally
L = Clearance above paved sidewalk or paved 7 feet (2.13m)† 7 feet (2.13m)†
driveway located on public property
M = Clearance under veranda, porch, deck or 12 inches (30cm)c 12 inches (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
both dwellings
‡ 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 Vermont Castings Direct Vent Stoves are certified as part of the appliance, with clearances
tested and approved by the listing agency.
Canadian Installations1US Installations2
General Venting Information - Termination Location

11
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
Venting Requirements - Natural Vent Only
Venting Runs
Horizontal Run (in feet)
Vertical Run (in feet)
(Measured from floor of unit to
top of vent cap.)
A: Vertical installations up to 36 feet (12m) in
height. Up to an 18 ft.horizontal vent run can be
installed within the vent system using a
maximum of two 90-degree elbows or four
45-degree elbows.
B: Vertical installations up to 36 feet (12m) in
height. Up to a 24 ft.horizontal vent run can be
installed within the vent system using a
maximum of two 45-degree elbows.
(Ratio = 2/3, Hor./Vert.)
= Acceptable venting configuration
= Unacceptable venting configuration
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
16 18 20 22 24 26 28 30 32 34 364 6 8 10 12 14
A
B
Fig. 11 Vent termination window - Natural Vent ONLY.
FP567b
NOTE: When using the FSDHAG, the restrictor plate
supplied with the stove is not used.
Outside Corner
Inside Corner
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
A =
Combustible
6"(152mm)
Noncombustible
2"(50mm)
B =
Combustible
6"(152mm)
Noncombustible
2"(50mm)
A
Balcony -
with no side wall
G =
Combustible&
Noncombustible
12"(305mm)
G
Balcony -
with perpendicular side wall
H = 24"(610mm)
J = 20"(508mm)
H
J
B
Recessed Location
C = Maximum depth of 48"
(1219mm) for recessed
location.
D = Minimum width for back wall
of a recessed location.
Combustible 38"(965mm)
Noncombustible 24"(610mm)
E = Clearance from corner in
recessed location.
Combustible 6"(152mm)
Noncombustible 2"(50mm)
CDC
E
V
V
Combustible &
Noncombustible
VV
V
584-14
Fig. 10 Termination clearances.

1212
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
Venting Requirements and Options -
Direct Vent ONLY
Approved Vent System Components
The Stardance Heater must be vented to the outdoors
through an adjacent exterior wall or through the roof.
The venting system must be comprised of the appropri-
ate listed venting components specified on this page.
These parts are available from DuraVent Corporation or
your Vermont Castings Majestic Products Dealer.
See Figure 4 for dimensions relevant to the standard
minimum-vent kits.
Simpson DuraVent Components
Minimum Horizontal Vent Kit 2792
Starter Pipe Assembly (incl. inner & outer sections)
2768*
90°Elbow, Blk. 990B*
45°Elbow, Gal. 945
6” Straight, Blk. 908B*
9” Straight, Blk. 907B
11” - 14⁵⁄₈” Adjustable Straight Section 911B
12” Straight 906
24” Straight 904B*
36” Straight 903B
48” Straight 902
Horizontal Vent Cap 984*
Wall Plate* 940
Vinyl Siding Shield 950
Snorkel Termination - 14” 982
Snorkel Termination - 36” 981
Wall Strap 988
Cathedral Ceiling Support Box 941
Storm Collar 953
Firestop Spacer 963
Flashing 0/12 - 6/12 943
Flashing 6/12 - 12/12 943S
Vertical Termination Cap 991
*Included in Minimum Horizontal Vent Kit #2792
All DuraVent Straight vent pipe sections have a net
length 1¹⁄₂” (37mm) less than the nominal dimension;
i.e., a 6” (152mm) Straight pipe section has an
effective length of 4¹⁄₂” (115mm).
CFM Vent Components
The following kits are available to meet the needs of
most installations. All pipe has a 7" outer diameter and
includes a 4" diameter inner section. A (CG) designa-
tion indicates the part is finished in Charcoal Gray
paint. Consult your dealer about other vent parts that
may be appropriate to complete the installation.
Min. Through the Wall Vent Kit 7TFSMSK
(1) 90-Degree Elbow (CG)
(1) 24" Straight pipe (CG)
(1) 36" Straight pipe (CG)
(1) Side Wall Termination
(1) Firestop
(1) Zero-clearance sleeve
(1) Hardware package
(1) Finishing plate (CG)
(1) Finishing collar (CG)
(4) Polished Brass flue pipe rings
Through the Wall Vent Kit 7TFSDVSK
(1) 90-Degree Elbow (CG)
(1) 24" Straight pipe (CG)
(1) 48" Straight pipe (CG)
(1) Side Wall Termination
(1) Firestop
(1) Zero-clearance sleeve
(1) Hardware package
(1) Finishing plate (CG)
(1) Finishing collar (CG)
(4) Polished Brass flue pipe rings
Through the Wall Vent Kit for
Below-Grade Termination 7TFSDVSKS
Includes all of the above parts plus
(1) Snorkel Termination
Vertical Termination Kit, 1/12-6/12 Pitch 7TDVSKVA
(1) Combination Horizontal Offset / Roof Support
(1) Vertical Termination
(1) Storm Collar
(1) 1/12-6/12 Flashing
(1) Finishing Plate (CG)
(1) Finishing Collar (CG)
(1) Polished Brass Flue Pipe Ring
(1) Hardware Package
Vertical Termination Kit, 7/12-12/12 Pitch 7TDVSKVB
(1) 7/12 - 12/12 Flashing
and all of the other Vertical Termination parts.
Vertical Termination, Flat Roof 7DVSKVF
(1) Flat Flashing
and all of the other Vertical Termination parts.
Twist Lock 24" Straight Pipe (CG) 7TFSDVP24
(1) 24" Non-adjustable Pipe
(1) Polished Brass Flue Pipe Ring
Twist Lock 48" Straight Pipe (CG) 7TFSDVP48
(1) 48" Nonadjustable Pipe
(1) Polished Brass Flue Pipe Ring
Twist Lock 45-Degree Elbow (CG) 7TFSDVT45
for vertical offsets
(1) 45-degree Elbow
(1) Polished Brass Flue Pipe Ring
Draft Hood Adapter FSDHAG
NV Stove Kit 7FSSK
(1) 7” Diameter Polished Brass Trim Ring
(1) 48” Nonadjustable Pipe (CG)
(1) 24” Nonadjustable Pipe (CG)
(1) Finishing Plate
(1) Finishing Collar (CG)
(1) 90 Degree Elbow (CG)
Stove Kit 7FSDHASK
Includes all parts in the 7FSSK plus the Draft Hood Adapter
FSDHAG
Combination Offset/Roof Support 7DVCS
Attic Insulation Shield 7DVAIS
7" Charcoal Gray Pipe Rings, (4) 7FSDRG
7" Polished Brass Pipe Rings (4) 7FSDRP
Wall Thimble 942G
NOTE: Direct vent pipe may be used on the Natural
Vent system from the top of the draft hood adapter to
the ceiling.

13
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
Assembly Procedures
Failure to position the parts in
accordance with these diagrams or
failure to use only parts specifically
approved for use with this heater may result in
property damage or personal injury.
This heater and components are heavy. Have
help available for assembly.
WARNING
Tools Required
•Phillips screwdriver (stub) • power drill
• utility knife • reciprocating saw
• metal drill bit: size 28 (.140”/3.5mm)
Unpack the Stove
The parts bag containing this manual also includes the
following parts:
•Remote Switch •Switch Bracket
•Switch Wire •Three 1/4-20 x 3/8” screws
•Cement •Restrictor Plate
•(2) #10 sheet metal screws
The Logset and 4” Inner Vent Starter Pipe are packed
inside the firebox. Use the following procedure to
unpack these parts.
1. Lift the Stove Front up and then swing the bottom
out and away to disengage it from the stove body.
Refer to Figure 37, Page 22.
2. Swing open the swiveling latches at the top left and
right corners of the glass frame. (Fig. 12)
ST208
Fig. 12 Swivel the latches to release the glass frame from
the firebox.
3. Pull the top edge of the glass and frame assembly
away from the firebox, and lift it off its supports on
the bottom of the firebox face. Place the assembly
out of the way on a flat, padded surface such as a
counter protected by a towel.
4. Take the logset and all other loose parts out of the
firebox, and set them aside in a protected area for
installation after the venting is complete.
NOTE: Verify the two relief doors (located on top of
the firebox) are properly seated on the gasket. The
doors should sit flush on the gasket, and should lift
easily from the seal around the opening.
Install the Optional Fan
If you are installing the optional convection Fan Kit
#2960 (FK28), continue here. If you will not install a
Fan Kit, go to page 14, Venting System Assembly.
1. The fan kit includes a Blower Assembly and a
Rheostat Assembly, connected by a cable. (Fig. 14)
The Blower Assembly and the Rheostat mount to the
rear shroud of the stove. The assembly includes a
‘snapstat’ which automatically turns the fan ON (or
OFF) above (or below) approximately 109°F (43°C).
The Rheostat also provides a range of fan speed
settings from Off (which overrides the snapstat
function ) to HIGH. Unpack and inspect the Blower
assembly. Confirm that the fan spins freely.
2. Attach the snapstat assembly to the snapstat bracket
with two sheet metal screws. (Fig. 18) Remove the
1/4-20 x 3/8” hex head bolt installed in the hole in the
right rear ledge of the firebox. Use that bolt to secure
the snapstat bracket to the firebox. The mounting hole
is slotted to let you adjust the bracket so that the
snapstat bracket head makes contact with the firebox.
(Fig. 13)
1/4-20 x 3/8”
Phillips
Screw
1/2” Sheet
Metal Screw
Snapstat Snapstat Bracket
ST239
Fig. 13 Snapstat assembly and installation.

1414
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
General Information
The Jefferson is approved for installation only with the
vent components listed on Page 12. Follow 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
For Canadian installations: The venting system must
conform to the current CSA B149.1 installation code.
Install the Vent Adapter Pipe
(CFM Vent Components)
1. Install the Restrictor Plate. Consult the ‘Vent Run
Specifications’ on page 8 to determine whether the
restrictor plate is needed. If so, put the restrictor
plate in place within the inner flue collar as shown in
Figure 16. NOTE: The restrictor plate supplied with
the vertical termination should be discarded. Install
restrictor plate supplied with the stove directly at
stove outlet.
Venting System Assembly - Direct Vent
2. Attach Inner Starter Pipe, (found in with the
logset), to the next section of inner pipe.
•Run a bead of sealant about 1/2” from the upper
end of the Inner starter pipe and join the two sec-
tions together.
•Drill three pilot holes into the Inner Starter and
secure the assembly with three sheet metal screws.
(Fig. 17)
3. Dry fit the Inner pipe assembly to the stove and
determine the required vent length.
•Insert the vent assembly into the flue collar, but do
not attach. Measure to determine the correct length
required for your installation and cut the upper end
of the pipe as necessary.
•Dry fit the outer vent section and cut to match the
height of the Inner assembly.
ST210
Fig. 16 Install the restrictor plate only if required for the
venting configuration. Refer to page 8.
Upper
Flange
ST240
Fig. 19 The upper flange of the fan skirt should be located
behind the lower edge of the shroud.
to
Control
Valve
ST241
Fig. 20 Correct position of fan skirt installation.
3. Attach the fan to the rear shroud by engaging the
upper flange of the fan skirt under the lower edge of
the shroud and secure the skirt with the four screws
and one star washer provided. (Fig. 14)
4. The rheostat control switch attaches to the left side of
the valve bracket at the front of the stove.
•Remove the plug from the rheostat bracket.
•Insert the switch box shaft through the hole in the
back of the right side of the valve bracket, aligning
the locator pin with the smaller hole in that bracket.
•Attach the retaining nut to the switch control shaft
to secure it to the plate.
•Attach the Control Knob to the rheostat shaft.
•Use the wire tie to secure the fan and rheostat
wire harnesses together.

15
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
•Side Wall Terminations: Dry fit the inner elbow
with the vertical inner vent and confirm the centerline
alignment with the wall thimble opening.
4. Attach the Inner Vent Assembly to the stove.
•Run a bead of sealant around the bottom end of
the starter pipe and attach the assembly to the stove
using three 1/4-20 x 3/8” Phillips screws provided in
the parts bag. (Fig. 18)
5. Install the Outer Adapter Pipe. Apply a 1/4” bead
of cement around the inside wall of the pipe, about
1” from the end. Insert the pipe over the stove flue
collar, keeping the vertical seam oriented to the back
of the stove. Also, be sure to align holes on the pipe
with the holes on the flue collar of the firebox.
Fasten the pipe to the holes in the flue collar with the
#12 x 1/2” sheet metal screws provided. (Fig. 19)
CEMENT
First Section of
Vent Pipe
1/4”-20 x 1/2”
Phillips Screw
3” Inner
Starter
Pipe
ST211
Fig. 17 Connect the inner starter with the next section of
inner vent pipe.
Fig. 18 Attach inner assembly to flue collar.
ST212
CEMENT
ST213
Fig. 19 Fasten outer pipe with #12 x 1/2” sheet metal screw.
Install the Vent Adapter Pipe
(Simpson Dura-Vent Components)
1. Install the Restrictor Plate. Consult the ‘Vent Run
Specifications’ on page 8 to determine whether the
restrictor plate is needed. If so, put the restrictor
plate in place within the inner flue collar as shown in
Figure 16.
2. Discard the inner starter pipe shipped with the
logset. Using the starter pipe assembly listed on
page 7, slide the inner section out to allow access.
• Run a bead of sealant around the bottom end of
the starter pipe and attach the assembly to the stove
using three 1/4-20 x 3/8” Phillips screws provided in
the parts bag. (Fig. 20)
3. Install the Outer Adapter Pipe. Apply a 1/4” bead
of cement around the outside surface, about one
inch from the crimped end. (Fig. 21) Orient the
vertical seam to the rear, and insert the crimped end
of the outer pipe into the flue collar. Fasten with
three sheet metal screws provided.
ST355
Fig. 20 Simpson Dura-Vent - install inner adapter pipe.
CEMENT
Inner Adapter
Pipe
1/4-20 x 3/
8 Phillips
Screws

1616
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
ST356
Fig. 21 Simpson Dura-Vent - install outer adapter pipe.
Side Wall Termination Assembly
1. Locate the vent opening on the wall. Refer to Figure
5, Page 6, to determine the opening centerline. It
may be necessary to first position the stove and
measure to find the hole location. Depending on
whether the wall is made of combustible materials,
cut the opening to the size shown in Figure 22.
Combustible wall openings must be framed as
shown in Figure 22.
9³⁄₈”
(240mm)
7¹⁄₂”
9³⁄₈”
(240mm)
Framing Detail
Combustible Wall
Noncombustible Wall
VO584-100
Fig. 22 Locate vent opening.
CFM System
DuraVent
System 10”
(254mm)
10”
(254mm)
2. Measure the wall thickness and cut the wall sleeve
sections to proper length (MAXIMUM 12”). Assemble
the sleeve with the #8 sheet metal screws supplied.
Attach the firestop plate to the sleeve end with the
holes. (Fig. 23) NOTE: The wall sleeve is required
in combustible walls only.
3. Install the Wall Firestop/Sleeve assembly into the
wall cutout and fasten the firestop to the wall cutout
framing members. (Fig. 23)
12”
(305mm)
Max. Length Sleeve
#8 Sheet
Metal Screws
Firestop ZCS103
Fig. 23 Assemble the wall sleeve and firestop.
For DuraVent pipe only: Install vent pipe by aligning
the locking system together, sliding the pipes
together and twisting clockwise.
•Install 90°elbow. Twist lock as before.
• Slide the wall plate over horizontal run before
attaching the horizontal run to the elbow. Fasten wall
plate to wall.
4. For CFM Vent Pipe only: If necessary, measure to
determine the vertical length (X) of pipe required
from the adapter pipe to the wall cutout centerline,
including a 2” overlap at the joint. (Fig. 24) use a
hacksaw or tin snips to trim the pipe as needed.
X
ST214
Fig. 24 Determine the vertical pipe length.
5. Install first the inner then the outer straight pipe
section(s), trimmed end down, to the point of the
elbow. Drill 3 holes through each joint and fasten
with sheet metal screws.

17
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
6. Seal and install the elbow using 3 sheet metal
screws at each joint.
7. Measure, and cut if needed, the appropriate length
of pipe section needed to make the connection
through the wall. Include a 2” overlap; i.e. from the
elbow to the outside wall face, about 2” or the
distance required if installing a second 90°elbow.
(Fig. 25)
8. Slip the wall plate and trim collar over the interior
end of the horizontal pipe and install into the wall
sleeve. Seal the joint inside the wall plate if needed
to keep cold air from being drawn into the home.
9. Seal the ends and connect the horizontal pipe to the
elbow. Fasten the wall plate to the pipe with three
sheet metal screws. Slide the trim collar up against
the wall plate to cover the screws. (Fig. 26)
X
ST215
Fig. 25 Measure the horizontal length.
Trim Collar
Wall
Sleeve
Wall Plate
ST216
Fig. 26 Install the horizontal pipe and wall plate parts.
10. For both CFM and DuraVent Systems: Install the
vent terminal. (Fig. 27) Apply high temperature
sealant one inch from the ends of the inner and
outer collars. Guide the inner and outer vent termi-
nation collars into the adjacent pipes. Double check
that the vent pipes overlap the collars by 2”. Fasten
the termination to the wall with the screws provided,
and caulk the joint with weatherproof sealant.
11. For CFM only: Install Charcoal Gray Pipe Rings
(#7FSDRG) or Polished Brass Pipe Rings
(#7FSDRP) at pipe joints, if desired.
Seal Both
Terminal Ends
Caulk Plate Joint with
Weatherproof Sealant ST217
Fig. 27 Install the vent terminal.
Vent Termination Below Grade
Install Snorkel Kit #7FSDVSKS when it is not possible
to meet the required vent termination clearances of 12”
(305mm) above grade level. The snorkel kit will allow
installation depth of down to 7” (178mm) below grade
level. The seven inches is measured from the center of
the horizontal vent pipe as it penetrates the wall. If the
venting system is installed below grade, a window
well must be installed with adequate and proper
drainage. (Fig. 28)
NOTE: Be sure to maintain side wall clearances and
vent run restrictions. Refer to Figures 3, 4, 7, and 8.
1. Establish the vent hole through the wall.
2. Remove soil to a depth of approximately 16”
(400mm) below the base of the snorkel. Install a
window well (not supplied). Refill the hole with 12”
(305mm) of coarse gravel and maintain a clearance
of at least 4” (100mm) below the snorkel. (Fig. 28)
3. Install the vent system as described on pages 15-18.
4. Be sure to make a watertight joint around the vent
pipe joint at the inside and outside wall joints.
5. Apply high temperature sealant around the inner and
outer snorkel collars. Join the pipes and fasten the
snorkel termination to the wall with the screws
provided.
6. Level the soil to maintain a 4” clearance below the
snorkel.
If the foundation is recessed, use extension brackets
(not supplied) to fasten the lower portion of the
snorkel. Fasten the brackets to the wall first, and
then fasten to the snorkel with self-tapping #8 x 1/2”
sheet metal screws. Extend the vent pipes out as far
as the protruding wall face. (Fig. 29)

1818
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
This installation will require you to first determine the
roof pitch and use the appropriate vent components.
Refer to Figures 8 and 9 on pages 8 and 9.
1. Locate the final position of the stove, observing all
clearances for both the vent and the stove.
2. Plumb to the center of the inner (4”) flue collar from
the ceiling above, and mark that location.
3. Cut the opening:
CFM System: 9³⁄₈” x 9³⁄₈” (240mm x 240mm)
DuraVent System: 10” x 10” (254mm x
254mm)
4. Plumb any additional opening through the roof or
other construction that may be needed. In all cases,
the opening must provide a minimum of 1” (25mm)
clearance to the vent pipe.
5. Place the stove in its final position.
6. Install firestop(s) #7DVFS and Attic Insulation Shield
#7DVAIS as needed. (Fig. 30) If there is a room
above ceiling level, a firestop must be installed on
both the bottom and top sides of the ceiling joists. If
an attic is above ceiling level, an attic insulation
shield must be installed.
Recessed Wall
Sheet Metal
Screws and
Bracket
Wall Screws
and Anchors
Waterproof Seal
Around Pipe
ST219
Fig. 29 Use extension brackets to mount snorkel against
recessed wall.
Firestop
Finishing
Collar
7” Pipe
Wall Plate
Waterproof Seal
Around Pipe
Firestop
Window Well
Drain
4” Clearance
Snorkel
Termination
Cap
Wall Screws
and Anchors
ST218
Gravel
Fig. 28 Snorkel kit installation.
Vertical (Through the Roof)
Vent Assembly
Note that all vertically terminated installations must
include the restrictor plate included with the stove.
Refer to Figure 8, Page 8.
Make certain the vent system conforms to all other
requirements for vertical termination as specified on
Page 8.
#7DVAIS
Attic Insulation
Shield
#7DVFS
Firestop in
Upper Floor
#7DVFS
Firestop in
Ceiling
Use Four
8d Nails
ST222
Fig. 30 Install firestops and attic insulation shield.
7. Install the appropriate roof support and flashing,
making certain that the upper flange of the flashing
base is below the shingles. (Fig. 31)
8. Install appropriate pipe sections until the vent run
reaches above the flashing. The enlarged ends of
the vent sections always face downward.

19
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
Venting System Assembly - Natural Vent
9. Install the storm collar and seal around the joints. (Fig.
31)
10. Add additional vent lengths to achieve the proper
overall height.
11. Apply cement to the inner and outer termination
collars and install the terminal cap.
Storm
Collar Sealant
Upper edge
of flange
goes under
upper
shingles
Flashing
#7DVSKV
(A, B, or F)
Roof Support
Use three #5
sheet metal
screws at
each joint
ST221
Fig. 31 Roof support and flashing.
General Information
The Jefferson Heater is shipped from the factory as a
Direct Vent Heater. It may be converted to a Natural
Vent heater by installing the Vermont Castings Model
Z31D00 FSDHAG Draft Hood Adapter.
The Jefferson Heater is approved for installation as a
Natural Vent. CFM Direct Vent pipe could be used
directly after the Draft Hood Adapter up to the ceiling,
then B-vent pipe must be used. Do not mix types of B-
vent pipe; use components from one maker or the
other. Follow the vent component maker’s instructions
exactly. The heater will also accept standard or
enamelled 7” (150mm) diameter pipe, around the Type
B venting, for decorative purposes only. (Fig. 32)
NOTE: The restrictor plate supplied with the stove
is not used for Natural Vent applications.
The Jefferson stove, when installed as a Natural vent
heater, includes a vent safety switch. (Fig. 64, Page 33)
Decorative 7”
Pipe
4” B-vent
Pipe
Draft Hood
Adapter
ST358
Fig. 32 Decorative 7” pipe may be fitted around the B-vent
pipe.
CFM Direct Vent
System may be
used after Draft
Hood up to the
ceiling.
Operating the stove when it is not connected to a
properly installed and maintained venting system, or
tampering with or disconnecting the vent safety switch,
can result in carbon monoxide (CO) poisoning and
possible death.
For U.S. installations: The venting system must
conform with local codes and/or the current National
Fuel Gas Code, ANSI Z22.1.
For Canadian installations: The venting system must
conform to the current CSA B149.1 installation code.
Install the Vent Pipe
Apply a bead of sealant around bottom end of inner
starter pipe (found in bag with logset) and attach to
stove. Apply a bead of sealant around top of inner
starter pipe and install the Z31D00 FSDHAG Draft
Hood according to Draft Hood instructions. (Fig. 33)
Attach the first section of venting to the draft hood.
Depending on the length of the individual venting
sections and the lengths of the decorative pipe (if
installed), you may need to slip the decorative pipe over
the venting sections before attaching upper sections to
lower ones. The sections of decorative pipe should be
oriented with their seams (if any) toward the wall;
sections usually do not need to be fastened at each
joint, other than slip sections. If the layout includes a
slip section, this should be the last section of pipe
visible in the room, at the ceiling. Complete the venting
according to the vent maker’s instructions.

2020
Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
20002191
Install the Log Set
1. Remove the logs from their packaging, and inspect
each piece for damage. DO NOT INSTALL DAM-
AGED LOGS.
2. Install the rear log by centering it side to side on
the sheet metal shelf at the back of the firebox. (Fig.
34)
3. Install the left and right middle logs by
engaging holes on their bottoms with pins on the
burner brackets. (Fig. 34)
4. Loosely sprinkle the lava rocks directly on top of the
burner between the decorative grate and the middle
logs. Do not place any ember material behind the
middle logs. (Fig. 35)
5. Engage the upper log with the rear log and the
right middle log as shown in Figure 35. Engage the
top log with the upper log and the left middle
log. (Fig. 35)
4
5
1
3
2
CEMENT
Fig. 33 Install draft hood adpater.
ST357
ST223
Fig. 34 Install the back, left and right logs.
1
23
Decorative Grate
ST224
Fig. 35 Install lava rock and upper logs.
4
5
Lava Rock
ST225
Fig. 36 Completed log installation.