Vermont Casting 2170 User Manual
Homeowner’s Installation and Operating Manual
Seneca
Model 2170
SAFETY NOTICE
If this Seneca is not properly installed, operated, and maintained, a
house fire may result. For safety, follow all installation, operation and
maintenance directions. Contact local building officials about restrictions and installation inspection requirements in your area.
DO NOT DISCARD THIS MANUAL: Retain for future use
2006063 1/03 Rev. 5
Dutchwest Seneca
This manual describes the installation and operation of the Seneca Model 2170 catalytic-equipped wood heater. This
heater meets the U.S. Environmental Protection Agency’s emission limits for wood heaters sold after July 1, 1990.
Under specific test conditions this heater has been shown to deliver heat at a rate ranging from 9,400 to 22,800 Btu’s/
Hr.
Please read this entire manual before you install and use your new room heater. Failure to follow instructions may
result in property damage, bodily injury or even death. In addition to directions on installations and operation, this
manual includes directions on maintenance and assembly.
We recommend that you hire a professional solid fuel stove installer to install your stove, or to advise you on the
installation should you attempt to install it yourself.
The Seneca has been tested and is listed by Warnock Hersey of Middleton, Wisconsin. The test standards ANSI/UL
1482 and ANSI/UL 737 for the United States and CAN/CSA-B366.2 for Canada. The Seneca is listed for burning
wood. Do not burn other fuels. The Seneca is not listed for installation in mobile homes.
Table of Contents
Specifications ................................. 3
Installation ...................................... 4
Assembly...................................... 16
Operation ..................................... 17
Maintenance................................. 22
Warranty....................................... 30
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 to cause cancer,
birth defects and other reproductive harm.
California Health & Safety Code Sec. 25249.6
Accessories
#6061 Rear Heat Shield
#6062 Bottom Heat Shield
#0134 Fire Screen
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2006063
Specifications
17" (430mm)
Dutchwest Seneca
20¹⁄₂"
(520mm)
22³⁄₄" (580mm)
27"
(685mm)
23¹⁄₂"
(597mm)
15¹⁄₂" (395mm)
Seneca, Model 2170
EPA Emissions rating................................... 2.1 gph**
EPA Efficiency rating......................................72.0%**
Efficiency rating.............................................72.0%***
Range of heat output......... 9,400 to 22,800 Btu’s/hr.**
Maximum heat output........................33,960 Btu’s/hr.*
Maximum burn time......................................... 8 hours
Area heated.......................1,400 Square feet (132m2)
Fuel Size/type ....................... 18” (460mm) wood logs
Fuel capacity ..............................23 (10.4 kg.) pounds
Loading .................................................... Front or top
Chimney Connector ................................. 6” (150mm)
Chimney Flue Size ................................... 6” (150mm)
Flue exit position ................... Reversible, Top or Rear
Ash handling system ...................Removable ash pan
Glass panels ..................... High-temperature ceramic
Weight .............................................. 375 lbs. (171kg.)
Width (leg to leg) .................................... 22” (560mm)
Depth (leg to leg)................................. 15¹⁄₂” (395mm)
Height to top of flue collar
w/5” standard legs .......... Top exit: 26¹⁄₂” (675mm)
......................................... Rear exit: 27” (690mm)
w/Pedestal ...................... Top exit: 30¹⁄₂” (775mm)
......................................... Rear exit: 31” (790mm)
Fig. 1 Seneca specifications.
26¹⁄₂"
(673mm)
22" (559mm)
* Maximum heat output based on laboratory testing
using full loads of seasoned hardwood.
** Based on EPA emission testing standards.
*** Based on State of Oregon testing standards.
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3
Dutchwest Seneca
Installation
SAFETY NOTICE: IF YOUR SENECA HEATER IS
NOT PROPERLY INSTALLED, OPERATED AND
MAINTAINED, A HOUSE FIRE MAY RESULT. FOR
SAFETY, FOLLOW ALL INSTALLATION,
OPERATION AND MAINTENANCE DIRECTIONS.
CONTACT LOCAL BUILDING OFFICIALS ABOUT
RESTRICTIONS AND INSTALLATION INSPECTION
REQUIREMENTS IN YOUR AREA.
Before you begin the installation, review your plans to
confirm that:
• Your stove and chimney connector will be far enough
from combustible material to meet all clearance requirements.
• The floor protector is large enough and is constructed
properly to meet all requirements.
• You have obtained all necessary permits from local
authorities.
Your local building official is the final authority for
approving your installation as safe and for determining
that it meets local and state codes.
Clearance and installation information is printed on the
metal label attached to the rear of the stove. Local
authorities generally will accept the label as evidence
that, when the stove is installed according to the
information on the label and in this manual, the installation meets codes and can be approved.
Codes vary in different areas, however. Before starting
the installation, review your plans with the local building
authority. Your local dealer can provide any additional
information needed.
For any unresolved questions about installation, refer to
the National Fire Protection Association’s publication
ANSI/NFPA 211-1988 Standard For Chimneys, Fireplaces, Vents and Solid Fuel Burning Appliances. In
Canada, the equivalent publication is CSA CAN-B365,
Installation Code for Solid Fuel Burning Appliances and
Equipment. These standards are the basis for many
national codes. They are nationally recognized and are
accepted by most local authorities. Your local dealer or
your local building official may have a copy of these
regulations.
Important: Failure to follow these installation instructions may result in a dangerous situation, including a
chimney or house fire. Follow all instructions exactly,
and do not allow makeshift compromises to endanger
property and personal safety.
Chimney Types
Your Seneca must be connected to a sound masonry
chimney that meets local codes, a relined masonry
chimney that meets local codes, or to an approved
prefabricated metal chimney. Whatever kind you use,
the chimney and chimney connector must be in good
condition and kept clean.
Masonry Chimneys
If you use an existing masonry chimney, it must be
inspected to ensure safe condition before the stove is
installed. Your local professional chimney sweep,
building inspector, or fire department official will be
able either to make the inspection or to direct you to
someone who can.
An inspection of the chimney must confirm that it has a
lining. Do not use an unlined chimney. The chimney
should also be examined for cracks, loose mortar, other
signs of deterioration, and blockage. Repair any
defects before the chimney is used with your stove.
Unused openings in an existing masonry chimney must
be sealed with masonry to the thickness of the chimney
wall, and the chimney liner should be repaired. Openings sealed with pie plates or wallpaper are a hazard
and should be sealed with mortar or refractory cement.
In the event of a chimney fire, flames and smoke may
be forced out of these unused thimbles.
The chimney should be thoroughly cleaned before use.
A newly-built masonry chimney must conform to the
standards of your local building code or, in the absence
of a local code, to a recognized national code. Masonry chimneys must be lined, either with code-approved masonry or pre-cast refractory tiles, stainless
steel pipe, or a code-approved, “poured-in-place” liner.
The chimney’s clean-out door must seal tightly.
Prefabricated Double-Wall
Insulated Chimney
Tile Lined
Masonry
Chimney
ST241
Fig. 2 If in sound condition and approved for use, either a
masonry or a prefabricated chimney may be used.
4
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Dutchwest Seneca
Prefabricated Chimneys
A prefabricated metal chimney must be one tested and
listed for use with solid-fuel burning appliances to the
High-Temperature (H.T.) chimney Standard UL-1031985 (2100°F.) for the United States, and High Temperature (650°C) Standard ULC S-629 for Canada.
Chimney Height
For proper draft and good performance, the chimney
should extend at least 16' (5m) above the flue collar of
the stove.
The chimney must also extend at least 3' (900 mm)
above the highest point where it passes through a roof,
and at least 2' (600mm) higher than any portion of a
building within 10' (3m). (Fig. 3)
DO NOT CONNECT THIS UNIT TO A CHIMNEY
FLUE SERVING ANOTHER APPLIANCE.
0 To 10’
2’ Min.
3’
Min.
Reference
Point
Fig. 3 The 2/3/10 rule for chimneys.
0 To 10’
2’ Min.
3’
Min.
AC617
Chimney Size
A Seneca is approved for venting into a masonry
chimney with a nominal flue size of 8” x 8” (200 x
200mm), and into a round flue size of 8” (200mm).
It may vented into larger chimneys as well. However,
chimneys with liners larger than 8” x 12” (200 x 300mm)
my experience rapid cooling of smoke and reduction in
draft, especially if these chimneys are located on the
home’s exterior. These large chimneys may need to be
insulated or may need to have their flues relined for
proper stove performance.
Accessories to help make the connection between
stainless steel chimney liners and the stove are avail-
able through your local dealer.
WARNING: Do not use double-wall chimney connectors with the Seneca unless they have been
specifically tested and listed for use with this
appliance. Use of double-wall chimney connectors
that have not been tested and listed for use with the
Seneca may result in temperatures exceeding the
limits established by the test standards ANSI/UL1482 or ULC S627. A potential hazard may result,
including a house fire.
Chimney Connector Guidelines
The chimney connector is the single-wall pipe that
connects the stove to the chimney. The chimney itself
is a masonry or prefabricated structure that encloses
the flue. Chimney connectors are used only to make
the connection from the stove to the chimney.
Do not pass the chimney connector through a combustible wall or ceiling, or through an attic, a closet or any
similar concealed space. If passage through a combustible wall is unavoidable, follow the recommendations in
the following section on Wall Pass-Throughs.
The single-wall chimney connector should be made of
24 gauge or heavier steel, and may be either 6”
(150mm) or 8” (200mm) in diameter.
Install the chimney connector not less than 18" (450
mm) from the ceiling. Keep the passage as short and
direct as possible, with no more than two 90 degree
turns. Slope horizontal runs of connectors upward 1/4”
per foot (20mm per meter) going from the stove toward
the chimney. The recommended maximum length of
horizontal run is 3 feet (1m), and the total length of
chimney connector should be no longer than 8 feet
(2.5m).
In cathedral ceiling installations, extend the prefabricated chimney downward to within 8 feet (2.5 meters) of
the stove. The entire chimney connector should be
exposed and accessible for inspection and cleaning.
Do not use galvanized chimney connector; it cannot
withstand the high temperatures that can be reached by
smoke and exhaust gases and it may release toxic
fumes under high heat.
Assembling the Chimney Connector
SAFETY NOTE: Always wear gloves and safety
goggles when drilling, cutting or joining sections of
chimney connector.
• Beginning at the flue collar of the stove, assemble
the chimney connector. Insert the first crimped end
into the stove’s flue collar, and keep each crimped
end pointing toward the stove. Using the holes in the
flue collar as guides, drill 1/8” (3m) holes in the
bottom of the first section of chimney connector and
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Dutchwest Seneca
secure it to the flue collar with three #10 x 1/2” sheet
metal screws.
• Secure each
joint between
sections of
chimney
connector,
including
telescoping
joints, with at
least three
sheet metal
screws. The
predrilled holes
in the top of
each section of
chimney
connector
serve as
guides when
you drill 1/8”
(3mm) holes in the bottom of the next section.
Toward
Stove
Flue Gas
Direction
ST242
Fig. 4 Crimped sections always point
toward the stove so that any liquid
condensation will not leak out.
• Secure the chimney connector to the chimney.
Instructions for various installation follow.
• Be sure the installed stove and chimney connector
are correct distances from nearby combustible
material.
NOTE: Special slip pipes and thimble sleeves that form
telescoping joints between sections of chimney connector are available to simplify installations. They can
eliminate the need to cut individual connector sections.
Consult your local dealer about these special pieces.
Securing the Connector
to a Masonry Chimney
The Seneca may be connected to either a freestanding
masonry chimney or a masonry fireplace chimney.
Freestanding Installations
If the chimney connector must pass through a combustible wall to reach the chimney, follow the recommendations in the wall pass-through section that follows.
The opening through the chimney wall to the flue (the
“breech”) must be lined with either a ceramic or metal
cylinder, called the “thimble”, which is securely cemented in place. (Fig. 5) Most chimney breeches
incorporate thimbles, but check to be sure the fit is
snug and the joint between thimble and chimney wall
firmly cemented.
Chimney
Elbow
Slip Pipe
Chimney
Connecotor Pipe
Flue Collar
Flue Liner
Flue
Thimble
Floor Protector
Securing the Connector
to a Prefabricated Chimney
Follow the installation instructions of the chimney
manufacturer exactly as you install the chimney. The
manufacturer of the chimney will supply the accessories to support the chimney, either from the roof of the
house, at the ceiling of the room where the stove is
installed, or from an exterior wall.
Special adapters are available from your local dealer to
make the connection between the prefabricated chimney and the chimney connector. The top of such
adapters attach directly to the chimney or to the
chimney's ceiling support package, while the bottom of
the adapter is screwed to the chimney connector.
These adapters are designed so the top end will fit
outside the inner wall of the chimney, and the bottom
end will fit inside the first section of chimney connector.
Any soot or creosote falling from the inner walls of the
chimney will stay inside the chimney connector.
6
ST747
Fig. 5 Installing the chimney connector to a lined masonry
chimney.
A special piece called the "thimble sleeve," slightly
smaller in diameter than the standard connector and
most thimbles, will ease the removal of the chimney
connector system for inspection and cleaning. (Fig. 6)
Thimble sleeves should be available from your local
dealer.
To install a thimble sleeve, slide it into the breech until it
is flush with the inner flue wall. Do not extend it into the
actual flue passage, as that could interfere with the
draft.
The thimble sleeve should protrude 1-2" (25-50 mm)
into the room. Use furnace cement and thin gasketing
to seal the sleeve in place in the thimble. Secure the
chimney connector to the outer end of the sleeve with
sheet metal screws.
2006063
Elbow
Thimble
Sleeve
Flue
Thimble
Dutchwest Seneca
24"
(610mm)
Keep
Sleeve
End Flush
with Flue
Tile
Chimney
Connector
Flue Liner
Fig. 6 The thimble, made of either ceramic or metal, must be
cemented in place securely.
ST243
Fireplace Installations -
Above the Fireplace
In this installation, the chimney connector rises from
the stove, turns ninety degrees, and goes back into the
fireplace chimney. The liner of the fireplace chimney
should extend at least to the point at which the chimney connector enters the chimney. Follow all the
guidelines for installing a chimney connector into a
freestanding masonry chimney, and pay special
attention to these additional points:
• Check the stove and chimney connector clearances
to combustible mantel or trim materials. Use the
necessary combination of mantel, trim, and connector heat shields to provide the required clearances.
(Fig. 7)
• Double-check connector clearance from the ceiling.
• The fireplace damper must be closed and sealed to
prevent room air from being drawn up the flue,
reducing the draft. However, it must be possible to
re-open the damper to inspect or clean the chimney.
Fireplace Installations -
Through the Fireplace
If the height of your fireplace opening is at least 30
inches, you may install a Seneca through the opening
using a “positive connection” kit available from your
local dealer. These kits ensure a tight fit between the
stove flue collar and the chimney flue.
Fireplace installations, whether connected to the flue
above or through the fireplace opening, have special
clearance requirements to adjacent trim and the
mantel.
You will find the required safe clearances for Seneca
fireplace installation on Page 10.
Floor protection requirements also apply to fireplace
installation. Be sure to review the floor protection
requirements on Page 8.
Chimney
Connector Shield
Block-Off Plate
Chimney Connector
ST244b
Fig. 7 The connector enters flue above the fireplace. If the
clearance between the chimney connector and either the
mantel and/or the ceiling is inadequate, special protective
shields will be required.
Flue Liner
Extend Chimney
Connector to the First
Tile of the Flue Liner
Observe
Miniumum Clearances
Fireplace
Adapter Kit
ST245a
Fig. 8 The connector passes through the fireplace to enter
flue. Special Fireplace Adapter Kits to simplify fireplace
installations are available from your local dealer.
Damper
Plate is
Remvoed
or Locked
in Open
Position
Close Off the
Damper
Opening with
Sheet Metal
and Sealant
Wall Pass-Throughs
Whenever possible, design your installation so the
connector does not pass through a combustible wall. If
you must use a wall pass-through in your installation,
check with your building inspector before you begin
and construct it in accordance with local building
codes. Also check with the chimney connector manufacturer for any specific requirements.
Accessories are available for use as wall passthroughs. If using one of these, make sure it has been
tested and listed for use as a wall pass-through.
In the United States, the national Fire Protection
Association (NFPA) has established guidelines for
passing chimney connectors through combustible walls.
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Dutchwest Seneca
Many building code inspectors follow these guidelines
when approving installations.
Figure 9 shows one NFPA-recommended method. All
combustible material in the wall is cut away a sufficient
distance form the single-wall connector to provide the
required 12” clearance for the connector. Any material
used to close up the opening must be noncombustible.
Chimney
Connector
1/2” (13mm)
Noncombustible
Material
ST727
Fig. 9 Wall pass-through enclosed with noncombustible
materials.
Three other methods are also approved by the NFPA.
These are:
• Using a section of double-wall chimney with a 9 inch
clearance to combustibles.
• Placing a chimney connector pipe inside a ventilated
thimble, which is then separated from combustibles
by six inches of fiberglass insulating material.
• Placing a chimney connector pipe inside a section of
8 inch diameter, solid-insulated, factory-built chimney, with two inches of air space between the
chimney section and combustibles.
In Canada, the Canadian Standards Association has
established different guidelines. Figure 10 shows one
method, in which all combustible material in the wall is
cut away to provide the required 18” (450mm) clearance for the connector. The resulting space must
remain empty. A flush-mounted sheet metal cover may
be using on one side only. If covers must be used on
both sides, each cover must be mounted on noncombustible spacers at least 1” (25mm) clear of the wall.
Your local dealer or your local building inspector can
provide details of other approved methods of passing a
chimney connector through a combustible wall. In
Canada, this type of installation must conform to CAN/
CSA-B365, Installation Code for Solid Fuel Burning
Appliances and Equipment.
NOTE: Do not vent your Seneca into a factory-built
(zero-clearance) fireplace. These appliances and their
chimneys are specifically designed as a unit for use as
fireplaces. It may void the listing or be hazardous to
adapt them to any other use.
DO NOT CONNECT THE HEATER TO ANY AIR
DISTRIBUTION DUCT OR SYSTEM.
18” (450mm)
Empty Space All
Around the
Chimney
Connector
Fig. 10 Hollow wall pass-through.
Sheet Metal
Cover
(One side
only)
ST728
Floor Protection
A tremendous amount of heat radiates from the bottom
plate of your Seneca stove. The floor area directly
under and around the stove will require protection from
radiant heat as well as from stray sparks or embers
that may escape the firebox.
Heat protection is provided through the use of a
Dutchwest Bottom Heat Shield. Spark and ember
protection must be provided by a floor protector
constructed with noncombustible material as specified.
Most installations will require that the bottom heat
shield be attached. Only when the stove is placed on a
completely noncombustible surface such as unpainted
concrete over earth may it be used without the heat
shield.
Even when the bottom heat shield is installed, you
must provide special protection to the floor beneath.
For installation with the heat shield attached, use a
noncombustible floor protector such as 1/4" nonasbestos mineral board or equivalent, or 24 gauge
sheet metal. The floor protector may be covered with a
decorative noncombustible material if desired. Do not
obstruct the space under the heater.
Protection requirements vary somewhat between the
United States and Canada as follows:
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Dutchwest Seneca
U.S. Installations: The floor protector is required under
the stove and must extend at least 16 inches from the
front and left (loading door) side of the stove, and at
least 6 inches from the right side and rear. (Fig. 11) It
must also extend under the chimney connector and 2
inches to either side. Refer to Figure 11 for minimum
noncombustible floor protection dimensions.
To meet these requirements, a floor protector must be
at least 44” wide and 43” deep.
In Canada: a noncombustible floor protector is required
under the heater also. The floor protector must extend
18 inches (457mm) from the front and left (loading
door) side of the stove, and at least 6 inches (150mm)
from the right side and rear. (Fig. 11) It must also
extend under the chimney connector and 2 inches to
either side. Refer to Figure 11 for minimum noncombustible floor protection dimensions.
To meet these requirements, a floor protector must be
46” (1170mm) wide and 45” (1140mm) deep.
Due to the side loading door, floor protector requirements call for more protection on the left side than on
the right. If you wish a more balanced look, increase
the other side of the hearth as well. Do not reduce
side protection under any circumstances.
C
For all fireplace installations, follow the floor protection
guidelines described above. Keep in mind that many
raised hearths will extend less than the required
clearance from the front of the heater. In such cases,
sufficient floor protection as described above must be
added in front of the hearth to satisfy the minimum
floor protector requirement from the front of the stove:
16” (410mm) in the United States and 18” (460mm) in
Canada.
Hearth rugs do not satisfy the requirement for floor
protection as they are not fire proof.
Fireplace installations also have special clearance
requirements to the side walls, side decorative trim and
fireplace mantel. Refer to the information on fireplace
and mantel trim shields in this section.
E
B
D
D
A
U.S. Canada
A. 44” 46” (1170mm)
B. 43” 45” (1140mm)
C. 10” 10” (250mm)
D. 16” 18” (457mm)
E. 6” 6” (150mm)
Fig. 11 Required floor protection dimensions.
E
D
D
A
E
ST729
Floor Protection for Fireplace
Do not assume that your fireplace hearth is completely
noncombustible. Many fireplace hearths do not satisfy
the “completely noncombustible” requirement because
the brick or concrete in front of the fireplace opening is
supported by heavy wood framing. Because heat
passes readily through brick or concrete, it can easily
pass through to the wood. As a result, such fireplace
hearths can be a fire hazard and are considered a
combustible floor. (Fig. 12)
Wood Framing
Fig. 12 Combustible supporting timbers may lie beneath
fireplace hearths; such situations require additional floor
protection.
ST730
Keep the Stove a Safe Distance from
Surrounding Materials
Both a stove and its chimney connector radiate heat in
all directions when operating. A safe installation
requires that adequate
between the stove and nearby combustible materials to
ensure that such materials do not overheat.
Clearance is the distance between either your stove or
chimney connector, and nearby walls, floors, the
ceiling, and any other fixed combustible surface. Keep
furnishings and other combustible materials away from
the stove as well. In general, a distance of 48" (1220
mm) must be maintained between the stove and
moveable combustible items such as drying clothes,
furniture, newspapers, firewood, etc. Keeping those
clearance areas empty assures that nearby surfaces
and objects will not overheat.
clearance
be maintained
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