St. Croix Prescott EXP User manual

St. Croix
Prescott Series
Installation Manual
Table of Contents
General Information .................................................................................................................. 1
Installation Check List .............................................................................................................. 2
Approved Installations............................................................................................................... 3
Exhaust Venting ........................................................................................................................ 4
Venting - Approved Materials .................................................................................... 4
Venting-Typical PL Vent Components........................................................................5
Venting - Determining Materials ............................................................................... 6
Venting Stove Outlet Dimensions.............................................................................7-8
Venting: Through Combustibles ................................................................................ 9
Venting: Into an Existing Chimney .......................................................................... 11
Venting: Hearth Mount..............................................................................................12
Venting: Termination Requirements ................................................................... 13-14
Combustion Air ....................................................................................................................... 16
Electrical Connections ............................................................................................................ 17
Floor Protection ...................................................................................................................... 18
Clearances to Combustible Materials ..................................................................................... 19
Mobile Home Installation ....................................................................................................... 21
Thermostat Installation and Operation.......................................................................................23
208

Prescott Series Installation Manual
Page 1
GENERALINFORMATION
SAFETY PRECAUTIONS
SAFETY NOTICE: The stove must be properly installed in order to prevent the possibility of a
house fire! These installation instructions must be strictly observed! Failure to follow
instructions may result in property damage, bodily injury or even death.
The stove’s exhaust system works with negative combustion chamber pressure and a slightly
positive chimney pressure. Therefore, it is imperative that the air intake and exhaust system be
airtight and installed correctly. Do not install a flue damper in the exhaust vent of this unit.
Do not connect this unit to a chimney flue serving another appliance or to any air distribution
duct or system.
BUILDING PERMIT
Contact the local building officials to obtain a permit and information on any local installation
restrictions and inspection requirements.
DEFINITION OF “STOVE”
The word “stove” as used in this manual is interpreted to mean a pellet burning freestanding
stove, insert, or zero-clearance fireplace, unless otherwise noted.
SAFETY TESTING
The stove has been independently tested and listed by Warnock Hersey Laboratories in
accordance with the proposed ASTM Standards and the applicable portions of UL 1482 and
ULC S627/B366.2, and Oregon Administrative Rules 814-23-901 through 814-23- 909, stating
requirements for installation as a stove, heater or hearth insert for masonry, metal and zero
clearance fireplaces and for mobile home installations. The safety-listing label is located on the
back of the stove.
DISCLAIMER OF WARRANTY
Since Even Temp Company has no control over the installation of a stove, Even Temp Company
grants no warranty, implied or stated, for the installation of a stove and assumes no responsibility
for any special, incidental or consequential damages.
SAVE THIS
INSTALLATION MANUAL

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Page 2
INSTALLATION CHECK LIST
BEFORE INSTALLATION
Thoroughly read and understand this manual. SAVE THIS MANUAL.
Check with local authorities and obtain needed permits
3. It is strongly recommended that the stove receive a Dealer’s “Pre-delivery Check” prior to
installation.
4. We recommend installation by a qualified professional.
BEFORE STARTING THE STOVE FOR THE FIRST TIME
1. Outside combustion air may be recommended for certain installations (negative pressure). Use
only approved parts. Outside air kit # 100354 is available or any comparable components as
listed on page 13.
2. All joints of PL vent and single wall stainless steel pipe should be fastened by at least 3 screws
and correctly installed. (Follow vent manufacturer’s instructions). Seal all joints with high
temperature silicone to create an airtight seal.
3. Any “plated” areas should be cleaned thoroughly with a glass cleaner such as Windex® and a
soft cloth just before lighting the first fire. This will remove fingerprints and oils that may cause
a permanent stain or mark on the gold plating the first time it is heated. Never use an abrasive
cleaner or material on any plated or painted surfaces. Never clean the plated surfaces when stove
is hot.
4. WARNING: The high temperature paint on this stove may take several hours of burning at a
high fuel setting to cure fully. During this time, an odor that is not harmful may be evident.
When odors are present, the area around the stove should be well ventilated.
5. Caution: The high temperature paint can be easily scratched prior to burning the stove.

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Page 3
APPROVED INSTALLATIONS
The Prescott EXP and Prescott EXL models are approved for CONVENTIONAL and MOBILE
HOME installations as a FREESTANDING stove. The stoves may also be installed on the
Hearth in front of a fireplace and vented through the chimney of the fireplace.
WARNING: The stove must not be installed in a sleeping room.
Prescott EXL

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Page 4
EXHAUST VENTING
VENTING: APPROVED MATERIALS
The stove requires a venting system, approved for pellet stoves by a certified testing lab.
Approved pellet stove venting materials are: 1) PL vent, a double wall vent with a stainless steel
liner; and 2) Single wall rigid or flexible stainless steel pipe. PL Vent and Single wall vent is
available through manufacturers such as: Simpson DuraVent, Energy Vent LTD, James A. Ryder
and Selkirk Metalbestos and is carried by many local pellet stove dealers. In this manual
approved venting will be referred to a “PL vent” or “Single wall vent”. All single wall vent
adaptors must be stainless steel.
NOTE: TYPE “B” GAS VENT MUST NOT BE USED IN ANY PELLET STOVE
INSTALLATION.
Examples of venting system components follow:
High temperature ceramic roping reduces potential fly ash escaping through joints.
Stainless steel inner liners resist corrosive flue gas damage to the system..
Flex pipe is 430 stainless steel, 4 ply construction with a total thickness of approx. .07 inches.

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TYPICAL PL VENT COMPONENTS
RAIN CAP
VERTICAL OR WALL THIMBLE CHIMNEY SUPPORT BRACKET
HORIZONTAL ADAPTER
ADJUSTABLE LENGTH SINGLE TEE SINGLE REDUCTION DOUBLE TEE
PIPE w/TEE CAP TEE w/TEE CAP w/TEE CAP
PIPE ADAPTER INCREASER 45
0
ELBOW 90
0
ELBOW

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Page 6
VENTING: DETERMINING MATERIALS
TYPE OF MATERIALS:
1. PL Vent must be used for venting all Freestanding stoves.
2. Exception: Single wall stainless steel may be used inside a fireplace or fireplace chimney.
(No clearances to combustibles are needed on single wall stainless steel adaptors, rigid or flex
pipe installed within a fireplace or inside a chimney.)
3. A clean out “tee” (PL Vent or “Quick-Connect Exhaust”) must be installed directly to the
stove and at the bottom of each vertical run of the exhaust system. These tees are to assist in
periodically cleaning the pipe. Single or double clean-out tees may be used. The exhaust system
must be installed so the entire system can be cleaned without disassembly.
NOTE: ADHERE TO THE PL VENT CLEARANCES TO COMBUSTIBLES AS REQUIRED.
STRICTLY OBSERVE THE PL VENT MANUFACTURER’S SAFETY SPECIFICATIONS.
QUANTITY OF MATERIALS:
1. Installing the vent system with a minimum of three feet (3’) of vertical rise above the stove
exhaust port will provide some Natural Draft.
FAILURE TO PROVIDE THE NATURAL DRAFT THAT RESULTS FROM A VERTICAL
RISE MAY RESULT IN SMOKE BEING RELEASED INTO THE HOUSE WHEN
ELECTRICITY TO THE UNIT IS INTERRUPTED WHILE BURNING OR SMOLDERING
PELLETS REMAINS IN THE BURN GRATE.
2. Additional vertical exhaust venting may be needed when using:
a. More than one (1) elbow or tee; and/or
b. Horizontal runs of over three (3) feet.
3. For a venting system ending in a horizontal run, the exhaust pipe must be terminated by a
listed end cap or a PL vent elbow (45 or 90 degrees). Note: End caps or elbows must vent
exhaust gases away from the building.
4. For termination above the building roofline a rain cap is required.
5. The exhaust pipe on all stoves is 2.95” O.D. to accommodate a 3” stove pipe adaptor. Your
installation may require the use of 4” vent. (3” to 4” adapters are available for both PL Vent and
Single Wall Vent.)
Use the following guidelines:

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Venting size Guidelines
Type of Installation: Size:______________
A. Less than 10’ horizontal: 3” Acceptable
B. 10’ to 12’ horizontal: 3” or 4” Acceptable
C. Over 12’ horizontal: 4” Required
(A horizontal installation over 12’ is NOT RECOMMENDED)
D. Less than 15’ vertical: 3” Acceptable
E. Over 15’ vertical: 4” Required
F. Above 4000’ elevation: 3” or 4” Acceptable
Note: Four (4) inch vent may be used in all installations. If in doubt, use 4” vent.
Figure 1. REAR VIEW
A – Width of stove
B – Height of stove
C – Center of intake tube from floor
D – Side of stove to center of intake tube
E – Side of stove to center of exhaust
F – Center of exhaust from floor

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Figure 1A.
REAR VIEW OF PRESCOTT EXL
A – Width of stove D – Center of stove to center of intake tube
B – Height of stove E – Center of stove to center of exhaust
C – Center of intake tube from floor F – Center of exhaust from floor

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Page 9
VENTING: THROUG COMBUSTIBLES
Figure 2 Figure3
Corner Installation Through the Wall Installation
Note A: Double wall PL vent requires a minimum of three inch (3”) clearance to combustibles and the use
of a listed wall thimble, fire stop or roof flashing where applicable.
ATTENTION: We strongly recommend using a battery backup system if the pellet stove is installed
using horizontal venting only. This prevents any smoke from entering your home in the event of a
power failure. Legend for Figures 2 through 5
A. 45 degree elbow I. PL Vent Fire Stop
B. Thimble J. Roof Flashing
C. PL Vent Section K. Storm Collar
D. Stove Exhaust Pipe L. Rain Cap
E. Air Intake Damper M. Outside Air Pipe
F. Air Vent Damper N. PL Vent Section
G. 90 degree elbow O. Wall Band
H. 45 degree elbow P. Outside Air Inlet Cover
1. PL vent may be installed directly through a combustible wall, ceiling or roof according to PL vent
manufacturer’s instructions. (See Figures 2 and 3).
2. The PL vent system must be properly sealed and secured as per PL vent manufacturer’s specifications.
An airtight seal is necessary in connecting the vent to the stove. Using a PL Vent pipe adapter, secure the
PL vent with at least three sheet metal screws and high temperature silicone adhesive, (RTV), or metal
tape at each joint.

Prescott Series Installation Manual
Page 10
Figure 4 Figure 5
Exhaust Venting Under The Eaves Exhaust Venting Through Ceiling and Roof
Note A: Double wall PL vent requires a minimum of three inch (3”) clearance to combustibles
and the use of listed wall thimble, fire stop or roof flashing where applicable.
1. When terminating the exhaust system under the house eaves, (Figure 4) the end of the vent
pipe system must be at least twelve inches (12”) from the wall and 24” below the eave, a 90
degree (G) and a 45 degree elbow may be used (H).
2. When extending through the roof, (Figure 5) install a PL vent fire stop (I) in the ceiling or in
the eaves if the eaves are boxed in. Install roof flashing (J) and a storm collar (K). Extend the
PL vent at least twenty-four inches (24”) above the roof and terminate with a PL listed rain
cap (L).

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Page 11
VENTING: INTOAN EXISTING CHIMNEY
The stove may be connected to an existing Class A chimney or a masonry chimney which meets
the minimum requirements of NFPA 211.
1. If the stove’s exhaust is connected to a masonry chimney, the masonry chimney must be free
of cracks that could leak exhaust gases or fly ash. A relining of the chimney with either PL
vent or single wall stainless steel pipe may be necessary to bring the chimney into
compliance.
2. When chimneys are relined, a chimney chase cap that reduces the outlet of the chimney to
the size of the liner is required. Extend the exhaust vent above the chimney chase cap and
finish it off with a rain cap. A single wall liner may need to be insulated to maintain
adequate exhaust temperatures in the vent system.
Note: Outside Chimneys frequently are difficult to keep warm, if in doubt insulate the liner.
Figure 6. Figure 7.
Venting into Masonry Chimney Venting into Class A Chimney
3. Venting into the side of an existing masonry chimney must be done through a masonry
thimble. When wall penetration is necessary to access a masonry chimney, use a listed PL
vent wall thimble. (Figure 6).
4. When venting into a Class A steel chimney, (Figure 7), use an appropriate PL Vent adapter.

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Page 12
Hearth Mount
Legend
A – Vertical Cap
B – Chimney Flashing
C – Stainless Steel Liner / PL Vent System
D – Positive Block Off Plate
E – PL Tee or Single Wall Tee
F – Outside Air Shield – May be needed
G – 2” Metal Outside Air Pipe - Optional
Figure 8. Venting to the Top of Chimney
When installing as a hearth mount stove into a fireplace the unit must either be relined,
terminating above the chimney chase top, or positively connected to the existing chimney system
using a block off plate (D). An approved flex liner of PL vent must be used. A chimney system
with known drafting problems may require a liner, which may also need to be insulated to
keep vent system warm in cold chimney environment.

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Page 13
VENTING: TERMINATION REQUIREMENTS
In determining optimum vent termination, carefully evaluate external conditions especially when
venting directly through a wall. Since you must deal with odors, gases, and fly ash, consider
aesthetics, prevailing winds, distances from air inlets and combustibles, location of adjacent
structures and any code requirements.
1. Exhaust must terminate above combustion air inlet elevation.
2. Do not terminate vent in any enclosed or semi-enclosed area, (i.e. Carports, garage, attic
crawl space, etc.) or any location that can build up a concentration of fumes.
3. Vent surfaces can get hot enough to cause burns if touched by children. Non-combustible
shielding or guards may be required
The type of installation must first be considered before determining the exact location of
the venting termination in relation ship to doors, window, cavities or air vents. See figures
4a and 4b below.
a. Without Outside Air connected to the unit. For These types of installations please refer
to the dimensions listed below in figure 4a.
Figure 4a
4’ (1.2 m) BELOW a door, window, cavity, or air vent
Or
4’ (1.2 m) HORIZONTALLYFROM a door, window, cavity, or air vent
Or
1’ (305 mm) ABOVE a door, window, cavity, or air vent

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Page 14
b. With Outside Air Connected to the unit. In this manner the appliance is a Direct Vent
Appliance (sealed Combustion System) as listed in NFPA 211-6.
3.3.3.2 Direct Vent Appliance (Sealed Combustion System Appliance) A system
consisting of an appliance, combustion air and flue gas connections between the
appliance and the outside atmosphere, and a vent cap supplied by the manufacturer, and
constructed so that all the air for combustion is obtained from the outside atmosphere
and all flue gases are discharged to the outside atmosphere.
Special Venting Arrangements are listed in NFPA 211-31
10.7.1.2 The Vent Terminal of a Direct Vent Appliance with an input of 10000 BTU/Hr or
less shall be located at least 6” from any opening into a building, and such an appliance
with an input of over 10000 BTU/Hr, but not over 50000 BTU/Hr shall not be located
less than 9” from any opening through which vent gases could enter a building, and the
vent terminal of such appliance with an input over 50000 BTU/Hr shall be located not
less than 12” from the opening.
Figure 4b
9” (229 mm) ABOVE, BELOW OR HORIZONTALLY FROM a door, window, cavity, or air
vent.

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THE EXHAUST TERMINATION LOCATION MUST BE AT LEAST: (FIGURE 10)
1’ (305 mm) ABOVE the ground level
7’ (2.1 m) FROM a public walkway
1’(305 mm) FROM The wall penetration point
3’ (915mm) FROM a gas meter/regulator assembly
2’ (610 mm) FROM any adjacent combustibles such as:
Adjacent buildings, fences, protruding parts
of the structure, roof eaves or overhangs,
plants, shrubs, etc.
Note: Certain local code restrictions may apply. Check with Local Officials first before
installing.
FIGURE 10
VENTING: TERMINATION CLEARANCE REQUIREMENTS SIDE VIEW
(All dimensions show MINIMUM distances)

Prescott Series Installation Manual
Page 16
COMBUSTION AIR
WARNING: USE THE AIR INTAKE DAMPER FOR ADJUSTING COMBUSTION INLET
AIR ONLY! OTHER METHODS OF RESTRICTING OR BLOCKING COMBUSTION
INLET AIR ARE STRICTLY PROHIBITED!
Figure 11
Stove Air Inlet Connection
1. It is recommended that the stove be connected to an outside source of combustion air under
certain conditions (negative pressure). An outside air kit is available, part # 100354 or any
flexible metal hose or rigid metal pipe (conduit) must be connected around (NOT INSIDE)
the combustion air inlet tube (Figure 11A). Be careful not to pinch or bend the outside air
pipe with too small a radius. Outside Air Pipe may be terminated flush with the outside wall
but should be protected from wind and weather by a hood. Note: The outside air pipe must
terminate above the maximum snow line and below the exhaust vent outlet.
2. Outside air may be drawn from a semi-enclosed attic or crawl space or any semi-enclosed
space. Take care not to draw cold air past water pipes that may freeze.
3. Increase the outside air pipe diameter to 3” for runs over ten (10) feet and elevation over
4,000 feet. Note: Long runs should be avoided.
4. Terminate the outside air pipe below the exhaust vent outlet.
5. An open mesh screen should be placed over the outside air pipe opening to prevent birds or
rodents from nesting in the opening. Use an elbow or shield to prevent prevailing winds from
blowing directly into the outside air intake pipe. NOTE: Mesh screen should be no smaller
than one-fourth inch (1/4”) by one-fourth inch (1/4”).
6. In the case of a Custom made sealed fireplace insert shroud, an outside air inlet to the
fireplace cavity is necessary to ensure adequate airflow for combustion.

Prescott Series Installation Manual
Page 17
WARNING: OUTSIDE COMBUSTION AIR IS REQUIRED FOR ALL MOBILE HOME
INSTALLATIONS!
ELECTRICAL CONNECTIONS
1. The Prescott Series is provided with a grounded electrical power cord that can extend from the
rear of side. This should be connected to a standard 120 volt AC electrical outlet. The current
requirement is approximately 3 amps. (5 amps with igniter running)
2. The power cord must be carefully routed to avoid contact with any hot or sharp exterior
surface areas of the stove. (Figure 11B) Any stove installed in a mobile home must be
electrically grounded to the steel chassis of the home and bolted to the floor in Model
compliance with, and according to building code requirements.
3. In Canada, the electrical installation must meet the applicable requirements for CSA C22.2.
Wiring Schematic

Prescott Series Installation Manual
Page 18
FLOOR PROTECTION
The stove must be installed on a non-combustible protective pad
Hearth models may be placed directly on the noncombustible hearth of a fireplace.
Floor protection is required for the area directly under the stove and extending 6” beyond the
front of the stove as shown.
Figure 12
Floor protection (Top View)

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Page 19
MINIMUM CLEARANCES (INCHES) TO COMBUSTIBLE MATERIAL
Figure(s): From:
14, 16B Sides of stove 4”
14, 16A, B Back of stove 4”
13 Corner of stove 4”
13 Vent pipe 3”
15 Stove to mantel 12”
15 Floor protection: Front (from faceplate) 6”
12 Floor protection: Sides & back of stove 0”
16A Alcove: Vertical to Combustibles 16”
16B Alcove: Sides 4”
16A, 16B Alcove: Back 4”
Figure 13 (Top View) Figure 14. (Top View)
Clearances: corners of stove Clearances Sides and Back
4” Needed to slide out the control board