St. Croix AFTON BAY User manual

St. Croix
PELLET STOVES
Save this
Installation Manual
Afton Bay, Prescott EX, Prescott EXL, York Insert
Table of Contents
General Information ............................................................................... 1
Installation Check List ......................................................................... 2
Approved Installations ......................................................................... 3
Exhaust Venting ................................................................................... 4
Venting: Approved Materials ................................................. 4
Venting: Determining Materials............................................. 6
Venting: Stove Dimensions..................................................... 7
Venting: Through Combustibles ............................................ 11
Venting: Into an Existing Chimney ........................................ 13
Venting: Termination Requirements ...................................... 15
Combustion Air ................................................................................... 17
Electrical Connections ......................................................................... 18
Floor Protection .................................................................................... 19
Clearances to Combustible Materials ..................................................... 20
Mobile Home Installation ....................................................................... 22
Thermostat Installation and Operation .................................................... 24
Notes .................................................................................................... 25

GENERAL INFORMATION
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 distribu-
tion duct or system.
BUILDING PERMIT
Contact the local building officials to obtain a permit and information on any local instal-
lation restrictions and inspection requirements.
DEFINITION OF “STOVE”
The word “stove” as used in this manual is interpreted to mean a wood 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 inside the right-side access panel.
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 as-
sumes no responsibility for any special, incidental or consequential damages.
1

INSTALLATION CHECK LIST
BEFORE INSTALLATION
1. Thoroughly read and understand this manual. SAVE THIS MANUAL.
2. 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 is recommended for all installations. Use only approved parts.
Check that the outside air inlet is connected to draw fresh air from outside the building.
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).
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 finger prints 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 which 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.
2

Approved Installations
The St. Croix are approved for Conventional and Mobile Home installations as:
1. A FREESTANDING stove on an approved floor pad or as a Hearth Mount stove.
2. A FIREPLACE Insert when installed on the Hearth, in a masonary or Zero Clearance type
Fireplace.
3

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: Energy Vent LTD, James A. Ryder, Simpson DuraVent 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.
4

TYPICAL PL VENT COMPONENTS
RAIN CAP WALL THIMBLE CHIMNEY SUPPORT
VERTICAL OR ADAPTER BRACKET
HORIZONTAL
ADJUSTABLE SINGLE TEE SINGLE REDUCTION TEE DOUBEL TEE
LENGTH W/ TEE CAP W/ TEE CAP W/ TEE CAP
PIPE
PIPE ADAPTER INCREASER 45 DEGREE 90 DEGREE
ELBOW ELBOW
5

VENTING: DETERMINING MATERIALS
TYPE OF MATERIALS:
1. PL Vent must be used for venting all Freestanding stoves and the Zero Clearance Fireplace.
2. PL Vent must be used for all Inserts. 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 chim-
ney.)
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 tee’s are to assist in
periodically cleaning the pipe. Single or double clean-out tee’s 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. It is recommended that the vent system be installed with a minimum of three feet (3’) of
vertical rise above the stove exhaust port.
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 REMAIN IN
THE BURN GRATE.
2. Additional vertical exhaust venting should be provided 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 roof line a rain cap is required.
5. The exhaust pipe on all stoves is 2.95” O.D. to accommodate a 3” pellet 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:
6

Type of installation: Size: Recommendation
A. Less than 10’ horizontal: 3” Acceptable
B. 10’ to 12’ horizontal: 4” Recommended
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: 4” Recommended
Note: Four (4) inch vent may be used in all installations. If in doubt, use 4” vent.
A – Width of stove
B – Height of stove
C – Center of exhaust tube from floor
D-Center of intake tube from floor
E-Center of stove to center of intake tube
F-Center of stove to center of exhaust
Afton Bay dimensions
7

A – Width of stove D-Center of intake tube from floor
B – Height of stove E-Center of stove to center of intake tube
C – Center of exhaust tube from floor F-Center of stove to center exhaust tube
Prescott EX Dimensions
8

A – Width of stove D-Center of intake tube from floor
B – Height of stove E-Center of stove to center of intake tube
C – Center of exhaust tube from floor F-Center of stove to center exhaust tube
Prescott EXL Dimensions
9

York Insert Dimensions
10

VENTING: THROUGH COMBUSTIBLES
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 air tight 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 tempera-
ture silicone adhesive, (RTV), or metal tape at each joint.
Figure 2 Figure3
Corner Installation Through the Wall Installation
11

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).
12

VENTING: INTO AN 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 which reduces the outlet of the chimney to
the size of the reliner is required. Extend the exhaust vent above the chimney chase cap and
finish it off with a rain cap. A single wall reliner must be insulated to maintain adequate
exhaust temperatures when outside temperatures drop below freezing.
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 adaptor.
13

Legend
P. Positive connect plate
Q. Stainless Flex or PL Vent
R. Existing Chimney Damper
S. PL Vent or Single Wall Vent
T. PL Tee or Single Wall Tee
U. Chimney Case Cover
V. Combustion Air Pipe
W. Combustion Air Shield
Figure 8. Venting to the Top of Chimney
1. When installing as a hearth mount stove into a fireplace the unit must be relined and must
terminate above the chimney chase top. An approved flex liner of PL vent must be used.
14

Figure 9. Venting: Termination requirements
Plain View
(All dimensions show Minimum distances.)
15
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, prevail-
ing 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
4’ (1.2 m) BELOW a door, window (see note below), cavity, or air vent
4’ (1.2 m) HORIZONTALLY FROM a door, window (see note below), cavity, or air vent
1’ (305 mm) ABOVE a door, window (see note below), cavity, or air vent

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
2’ (610 mm) FROM any adjacent combustibles such as:
Adjacent buildings, fences, protruding parts
of the structure, roof eaves or overhangs,
plants, shrubs, etc.
FIGURE 10. VENTING: TERMINATION CLEARANCE REQUIREMENTS SIDE VIEW
(All dimensions show MINIMUM distances)
16

Figure 11A
Stove Air Inlet Connection
1. It is recommended that the stove be connected to an outside source of combustion air to improve
stove performance. Flexible metal hose, such as ClevFlex, 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 which 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.
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 sealed fireplace insert shroud, an outside air inlet to the fireplace cavity is
necessary to ensure adequate air flow for combustion.
WARNING: OUTSIDE COMBUSTION AIR IS REQUIRED FOR ALL MOBILE HOME
INSTALLATIONS!
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!
(See Figure 1)
17

ELECTRICAL CONNECTIONS
1. Freestanding and insert stoves are 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.
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 electri-
cally 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 fo CSA C22.2.
Figure 11B.
Insert Electrical Power Routing
18
Power Cord routed through grommet
in Right Side Surround Panel.
Non Combustible
Hearth in front of
Fireplace

FLOOR PROTECTION
The stove must be installed on a non-combustible protective pad.
Freestanding stoves will have either a pedestal or cast legs (Prescott Series) or Pedestal only (Afton
Bay stoves).
Insert 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.
Models: Prescott EX,
Figure(s): From: Prescott EXL, Afton Bay, York
14, 16B Sides of stove 1”
14, 16A, B Back of stove (rear face of control box) 1”
13 Corner of stove 1”
13 Vent pipe 3”
16 Stove to mantel 12”
16 Floor protection: Front(from faceplate) 6”
12 Floor protection: Sides & back of stove 0”
15 Alcove: Vertical to Combustibles 16”
17 Alcove: Sides 1”
17 Alcove: Back 1”
MINIMUM CLEARANCES (INCHES) TO COMBUSTIBLE MATERIAL
19
Fig 12