Ashley AP5660L User manual

Installation and Operating Manual
Model AP5660L
Tested &
Listed by
Portland
Oregon USA
OMNI- Test Laboratories, Inc.
Report #:
215-S-32-4
SAFETY NOTICE
Please read this entire manual before installation and use of this pellet fuel-burning room heater. Failure to follow instructions
may result in property damage, bodily injury, or even death.
If your heater is not properly installed, a house fire may result. For everyone’s safety, follow all Installation and Operating
Directions. Never use makeshift compromises during the installation of this appliance.
Contact your local building or fire officials about restrictions and installation inspection requirements in your area.
These Pellet Stove Room Heaters have been designed for use in the US and Canada and are suitable for mobile homes.
The French version of this manual is available for download at www.usstove.com
Save These Instructions
United States Stove Company • 227 Industrial Park Road, South Pittsburg, TN 37380 • Phone #: [phone]
Part No.: 852072E
This unit is not intended to be used as a primary source of heat.
1

TABLE OF CONTENTS
Topic Page(s)
Introduction ....................................................................................................................................................3
Safety Information .........................................................................................................................................4
Specifications ............................................................................................................................................... 6
Operating Instructions ................................................................................................................................7-8
Thermostat Installation ..................................................................................................................................9
Clearances to Combustibles .......................................................................................................................10
Installing Your Room Heater ..................................................................................................................11-18
Mobile Home Installations ..........................................................................................................................19
Vent Termination Locations ........................................................................................................................21
Maintenance ..........................................................................................................................................22-25
Troubleshooting .....................................................................................................................................26-27
Wiring Diagram ...........................................................................................................................................28
Replacement Parts List ..............................................................................................................................29
Warranty Card .............................................................................................................................................31
2

Introduction
The entire family of United States Stove Company thanks you for purchasing your new pellet burning room heater. At U.S.
Stove, we build all of our products with a hands-on approach to detail and quality. Our old world team of Craftsmen take
great pride in their superior workmanship to ensure you have years of trouble free use of your pellet heater.
U.S. Stove Pellet Burning Room Heaters have been tested and listed for installation in residential, mobile home and alcove
installations. U.S. Stove Pellet Burning Room Heaters are available in free standing pedestal and fireplace insert versions.
U.S. Stove Pellet Burning Room Heaters have been certified by OMNI-Test Laboritories to:
ASTM E1509-04, ULC/ORD-C1482-M90, ULC-S627-00, & ULC-S628-00
The performance of your Pellet Stove Room Heater can be affected by the type of pellet fuel you choose to burn in it. It is
important to use only pellet fuel that is dry and free from dirt or other impurities. The Pellet Fuel Industry has established
standards for wood pellet manufacturers. We recommend that pellet fuel used in all U.S. Stove Pellet Burning Room
Heaters meet or exceed the following specifications:
Fines (fine particles): Maximum through a 1/8” screen
Bulk Density: Minimum 40 lbs per cubic foot
Size: Maximum 3/8” Diameter by 1-1/2” length
Ash Content: 1% Maximum (Premium grade)
3% Maximum (Standard grade)
Moisture Content: 8% Maximum
Heat Content: Minimum 8,200 btu’s per hour
It is important to note that the ash content of the fuel and frequency of operation will determine the frequency of which you
will be required to clean your Pellet Stove. A high ash fuel may result in daily cleaning, while a low ash content fuel may
result in less frequent cleaning.
Occasionally, impurities in the fuel will cause a hard mass build up in the burn pot of your Pellet Stove. Impurities, such as
silica, can virtually form little glass balls when subjected to the high heat generated in the burn pot. When allowed to collect,
a hard base build up may block air flow through the burn pot, which will significantly affect the performance and efficiency of
your Pellet Stove. It is a good idea to check the burn pot for any hard mass buildup or other blockage on a daily basis, and
if necessary let the burn pot cool and then clean the burn pot.
U.S. Stove Company realizes that it cannot control the quality of pellet fuel you choose to use in your Pellet heater;
U.S. Stove assumes no responsibility for that choice.
CAUTION: BE SURE TO STORE PELLET FUEL A MINIMUM OF 3 FEET (914.5MM) AWAY FROM THE PELLET HEATER.
RADIANT HEAT CAN IGNITE THE FUEL.
Please note that the rating label is located on the inside of the hopper lid.
3

SAFETY INFORMATION
Be sure to read the entire owner’s manual prior to installing and operating this Pellet heater. Failure to follow these instructions could
result in fire, property damage, bodily injury or even death.
This stove’s exhaust system works with negative combustion chamber pressure and a slight positive chimney pressure, it is ex-
tremely important to ensure that the exhaust system is sealed and airtight. The ash pan and viewing door must be securely fastened
in order for the unit to be airtight. This Pellet heater will not operate using natural draft or without a power source for the blowers.
CAUTION: Burning fuel creates carbon monoxide and can be hazardous to your health if not properly vented.
CAUTION: A working smoke detector must be installed in the same room as this product.
It must be installed at least 15 feet
(4.57 m) from the appliance in order to prevent undue triggering of the detector when reloading.
The use of grates or other methods of supporting the fuel is not permitted.
This Pellet heater is designed to burn pellet wood fuel only. Do not use any other type of fuel; doing so will void any warranties stated
in this manual.
THE USE OF SOLID WOOD FUEL IS PROHIBITED BY LAW.
This Pellet heater is designed for residential installation according to current national and local building codes. It is also approved
as a mobile home heater, which requires connection to an outside combustion air source. When installing a Pellet Stove in a
mobile home, it must be electrically grounded to the steel chassis of the home and bolted to the floor. Make sure that structural
integrity of the home is maintained.
Make sure that structural integrity of the home is maintained when passing vent pipes through walls, ceilings and roofs
It is recommended that the exhaust vent be cleaned bi-annually or after every two tons of pellets.
Soot or creosote may accumulate when the pellet heater is operated under incorrect conditions, such as an extremely rich burn
(black tipped lazy orange flames). Do not operate the stove if the flame becomes dark or sooty or if the burn pot overfills with pel-
lets. Turn the stove off and call your dealer.
The grounded electrical cord must be connected to a standard 120 volt, 60 hertz electrical outlet. Ensure that the electrical cord
is not trapped under the appliance and that it is clear of any hot surfaces or sharp edges.
The ash pan and viewing door must be locked securely for proper and safe operation.
DO NOT PLACE UNBURNED OR NEW PELLET FUEL IN THE ASH PAN. A fire in the ash pan may occur.
Do not operate your pellet heater if you smell smoke coming from it. Turn it off, monitor it and call your dealer.
Repair and servicing of your U.S. Stove Pellet Burning Room Heater may only be done by a qualified technician.
Disconnect the power cord before performing any maintenance or repair.
NOTE: Turning the Pellet Stove Room Heater to "off" does not disconnect power from the unit.
The Pellet Stove Room Heater will not operate during a power outage. If a power outage or tripped circuit occurs, check for smoke
spillage and open windows or doors to ventilate as necessary.
CAUTION DO NOT CONNECT TO OR USE IN CONJUNCTION WITH ANY AIR DISTRIBUTION DUCTWORK UNLESS SPE-
CIFICALLY APPROVED FOR SUCH INSTALLATIONS.
Know the symptoms of carbon monoxide poisoning: headache, dizziness, weakness, nausea, vomiting, sleepiness, and confusion.
Carbon monoxide reduces the blood’s ability to carry oxygen. Low blood oxygen levels can result in loss of consciousness and
death.
See a doctor if you or others develop cold or flu-like symptoms while cooking or in the vicinity of this appliance. Carbon monoxide
poisoning, which can easily be mistaken for a cold or flue, is often detected too late.
Alcohol consumption and drug use increase the effects of carbon monoxide poisoning.
Carbon monoxide is especially toxic to mother and child during pregnancy, infants, the elderly, smokers, and people with blood or
circulatory system problems, such as anemia, or heart disease.
4

SAFETY INFORMATION - continued
Keep foreign objects out of the hopper.
Contact your local building officials to obtain a permit and information on any installation restrictions or inspection require-
ments in your area.
Be sure to notify your insurance company of your new U.S. Stove Pellet Burning Room Heater.
Allow the Pellet Stove Room Heater to cool before performing any maintenance.
Ashes must be disposed of in a steel container with a tight lid and placed on a noncombustible surface well away from your
home.
Check the venting system, at least twice a year, for creosote build-up.
Keep all door/lid seals and gaskets in good condition.
Adequate ventilation air is required to operate this heater. During operation, the heater draws air for combustion which can
be assisted by the installation of outside combustion air inlets. However, certain weather conditions such as icing or use of
kitchen exhaust fans may impact and reduce the effectiveness of vents. It is important to note that room air starvation will
negatively impact the operation of the heater.
If power outages with battery backup or room air starvation occurs during operation of heater, smoke in the house may
result. This may trigger smoke detectors if they are installed.
CAUTION:
DO NOT CONNECT TO ANY AIR DISTRIBUTION DUCT OR SYSTEM.
DO NOT USE CHEMICALS OR FLUIDS TO START THE FIRE. NEVER USE GASOLINE, GASOLINE TYPE LANTERN
FUEL, KEROSENE, CHARCOAL LIGHTER FLUID, OR SIMILAR LIQUIDS TO START OR FRESHEN UP A FIRE IN THE
HEATER. KEEP ALL SUCH LIQUIDS WELL AWAY FROM THE HEATER WHILE IT IS IN USE. USING THESE CHEMI-
CALS COULD CAUSE BODILY HARM, HEATER DAMAGE AND WILL VOID THE WARRANTY.
DO NOT BURN GARBAGE OR FLAMMABLE FLUIDS SUCH AS GASOLINE, NAPHTHA OR ENGINE OIL.
HOT WHILE IN OPERATION. KEEP CHILDREN, CLOTHING AND FURNITURE AWAY FROM THE HEATER. CONTACT
MAY CAUSE SKIN BURNS. YOUNG CHILDREN SHOULD BE SUPERVISED WHEN THEY ARE IN THE SAME ROOM
AS THE STOVE.
DO NOT ATTEMPT TO OPERATE THE HEAT EXCHANGER VENT TUBE CLEANER WHILE THE PELLET
STOVE IS IN OPERATION OR COOLING DOWN; WAIT UNTIL PELLET STOVE HAS COOLED COMPLETELY
BEFORE PERFORMING THIS PROCEDURE.
ENSURE THAT PEOPLE ARE AWARE THAT THE HEAT EXCHANGER VENT TUBE CLEANER KNOB WILL BE
VERY HOT DURING PELLET STOVE OPERATION AND CAN BE A BURN HAZARD.
OTHER RADIANT SURFACES OF THE STOVE WILL BE HOT DURING OPERATION AND CAN BE A BURN HAZARD.
A working smoke detector must be installed in the same room as this product.
It must be installed at least 15 feet (4,57 m) from the appliance in order to prevent undue triggering of the detector when reloading.
5

SPECIFICATIONS
Heating Specifications:
Burn Rate: *43,900 btu’s per hour or 5.1 lbs. of fuel per hour
Hopper Capacity: 55 lbs.
*Dependent upon quality and heating value of pellet fuel.
DIMENSIONS
Figure 1
6.00 in
[152.4 mm]
13.70 in
[348 mm]
20.50 in
[520.8 mm]
10 50 in
24.41 in
[620.0 mm]
27.32 in
[693.9 mm]
34.05
[865 mm]
6

Assembly Instructions
STEP 1
Pull the factory installed wires out of the top of the stove.
ere will be two wire harnesses, ash shown.
STEP 2
Unpack the top mount controls and ensure that the
wiring harness shown is attached securely.
STEP 3
Connect the factory installed wiring harnesses to the control
panel as shown.
STEP 4
Attach the control panel to the
top of the stove, as shown.
STEP 5
Secure with two sheet metal
screws.
7

PANEL CONTROLS
The blowers and automatic fuel supply are controlled from a panel on the top of the 5660. The control panel functions
are a follows.
A. ON/OFF SWITCH (“POWER” BUTTON)
• When pushed, the stove will automatically ignite. No other fire starter is necessary. The igniter will stay on for at
least 10 and up to 12 minutes, depending on when Proof of Fire is reached. The fire should start in approximately
5 minutes.
• The red light located above the “POWER” button will turn green when pressed and remain green until the stove
is turned off.
• After pushing “POWER”, the auger motor is on for 3.5 minutes, off for 1 minute. During the remainder of the
start-up period, the auger motor operates on the heat range “1” setting.
• During start up the heat level advance (Up and Down keys) will change the heat range indicator level accordingly,
but there is no change in the stoves operating conditions until start-up is completed.
• During start-up ignition must occur within 12 minutes or the stove will error out and show E4.
• During the start-up phase, the Mode key does not function.
Control Panel
B. LEVEL / TEMP ARROW BUTTONS
• These buttons when pushed will set the pellet feed rate, hence the heat output or heat range of your stove.
• The levels of heat output will incrementally change on the bar graph starting from heat range “1” to heat range “5”.
C. °C / °F Button
• The °C / °F button changes the two digit display from degrees Celsius to degrees Fahrenheit.
D. MODE (M/T) BUTTON
• The Mode of the stove can be switched between manual and controlled with a Thermostat. Separate LEDs to
the left of the two digit display indicate the mode of operation – Manual or T-Stat. The stove has to be in normal
operation to be switched from Manual to T-Stat mode.
• Manual mode operates according to the 5 set levels of feed on the bar graph from heat range “1” to heat range “5”.
• T-Stat mode works as follows:
• The stove has a built in Thermostat into the controls of the appliance. The temperature sensor for the T-Stat is
located on the back of the stove behind the display board.
• Once the stove has gone into run mode the stove can be switch into T-Stat mode.
• The Up and Down Level / Temp Arrow buttons are used to change the desired set-point temperature. Once
the desired temperature is reached the two digit display will flash for four seconds and reset to the actual room
temperature.
• Once the stove reaches within 3°F of the desired temperature set point, it returns to the heat range that the stove
was set on before it was switched to T-Stat mode (if the stove was running on heat range “5” when switched to
T-stat mode when it gets within 3°F of the set point it will return to heat range “5”).
• Once the stove reaches the desired set-point, the stove will drop to heat range “1”.
• When room temperature drops below desired set-point the stove will ramp back up until it reaches the desired
temperature.
8

DO NOT USE CHEMICALS OR FLUIDS TO START THE FIRE - NEVER USE GASOLINE, GASOLINE-TYPE
LANTERN FUEL, KEROSENE, CHARCOAL LIGHTER FLUID, OR SIMILAR LIQUIDS TO START OR “FRESHEN
UP” A FIRE IN THIS STOVE. KEEP ALL SUCH LIQUIDS WELL AWAY FROM THE STOVE WHILE IT IS IN USE.
DO NOT BURN GARBAGE OR FLAMMABLE FLUIDS SUCH AS GASOLINE, NAPHTHA, OR ENGINE OIL.
HOT WHILE IN OPERATION. KEEP CHILDREN, CLOTHING AND FURNITURE AWAY. CONTACT MAY
CAUSE SKIN BURNS.
PROPER FUEL
THIS STOVE IS APPROVED FOR BURNING PELLETIZED WOOD FUEL ONLY ! Factory-approved pellets are
those 1/4” or 5/16” in diameter and not over 1” long. Longer or thicker pellets sometimes bridge the auger flights, which prevents
proper pellet feed. Burning wood in forms other than pellets is not permitted. It will violate the building codes for which the stove
has been approved and will void all warranties. The design incorporates automatic feed of the pellet fuel into the fire at a carefully
prescribed rate. Any additional fuel introduced by hand will not increase heat output but may seriously impair the stoves performance
by generating considerable smoke. Do not burn wet pellets. The stove’s performance depends heavily on the quality of your pellet
fuel. Avoid pellet brands that display these characteristics:
1. Excess Fines – “Fines” is a term describing crushed pellets or loose material that looks like sawdust or sand. Pellets can be
screened before being placed in hopper to remove most fines.
2. Binders – Some pellets are produced with materials to hold the together, or “bind” them.
3. High ash content – Poor quality pellets will often create smoke and dirty glass. They will create a need for more frequent
maintenance. You will have to empty the burn pot plus vacuum the entire system more often. Poor quality pellets could damage
the auger. We cannot accept responsibility for damage due to poor quality pellet.
PRE-START-UP CHECK
Remove burn pot, making sure it is clean and none of the air holes are plugged. Clean the firebox, and then reinstall burn pot. Clean
door glass if necessary (a dry cloth or paper towel is usually sufficient). Never use abrasive cleaners on the glass or door. Check fuel
in the hopper, and refill if necessary.
NOTE: The 5660 Hopper can hold up to 60 lbs. of pellets.
BUILDING A FIRE
Never use a grate or other means of supporting the fuel. Use only the burn pot supplied with this heater.
Hopper lid must be closed in order for the unit to feed pellets.
During the start-up period:
1. Make sure burn pot is free of pellets.
2. DO NOT open the viewing door.
3. DO NOT open the damper, the damper needs to be closed during start up.
4. DO NOT add pellets to the burn pot by hand.
NOTE: During the first few fires, your stove will emit an odor as the high temperature paint cures or becomes seasoned to the metal.
Maintaining smaller fires will minimize this. Avoid placing items on stove top during this period because paint could be affected.
THE HOTROD AUTOMATIC FIRESTARTER
1. Fill hopper and clean burn pot.
2. Press “On/Off” button. Make sure green light comes on.
3. The damper should be completely closed or open no more than ¼ of the way during start-up. This will vary depending on your
installation and elevation. Once fire is established adjust for desired flame increasing the amount the damper is open as the heat
setting is increased. (See “DAMPER CONTROL”)
4. Adjust feed rate to desired setting by pressing “Heat Level Advance” button.
If fire doesn’t start in 12 minutes, press “On/Off”, wait a few minutes, clear the burn pot, and start procedure again.
DAMPER CONTROL
The damper control lever is located on the back of the stove on the lower left side. The dampener adjusts the combustion air. This
control is necessary due to the varied burn characteristics of individual installations, different pellet brands and pellet feed rates.
It allows you to improve the efficiency of your stove. Providing correct combustion air will reduce the frequency of cleaning your
glass door and prevent the rapid buildup of creosote inside your stove and chimney.
You should adjust the damper based on the fire’s appearance. A low, reddish, dirty fire can be improved by turning the dampener
slightly to the right. A “blow torch” fire can be improved by turning the dampener to the left a little bit.
Operation
9

Operation
As a general rule, on lower feed rate settings, the damper should be farther to the left closing it off. On higher feed rates, the
damper should be open more by having it set more towards the right. Through trial and error, you will find the best setting. Consult
your dealer if you need help.
NOTE: On heat range “1”, damper should be either completely closed or open no more than a ¼ of the way. If damper is open to
far, it can cause the fire to go out.
OPENING DOOR
If the door is opened while the stove is in operation it must be closed within 30 seconds or the stove will shut down. If the stove
shuts down push the “On/Off” button to re-start your stove. The stove will have to fully shut down and turn off before you will be
able to restart the stove.
ROOM AIR FAN
When starting your stove the Room Air Fan will not come on until the stove’s heat exchanger warms up. This usually takes about
10 minutes from start-up.
IF STOVE RUNS OUT OF PELLETS
The fire goes out and the auger motor and blowers will run until the stove cools. This will take 30 minutes or longer depending
on the heat remaining in the appliance. After the stove components stop running all lights on the display will go out and the two
digit display will begin flashing “E3”
REFUELING
• The hopper and stove top will be hot during operation; therefore, you should always use some type of hand protection when
refueling your stove.
• Never place your hand near the auger while the stove is in operation.
We recommend that you not let the hopper drop below ¼ full.
KEEP HOPPER LID CLOSED AT ALL TIMES EXCEPT WHEN REFILLING.
DO NOT OVERFILL HOPPER.
SHUTDOWN PROCEDURE
Turning your stove off is a matter of pressing the “POWER” button on the display board. The green light will turn back to red
when the “POWER” button is pushed. The auger motor will stop, and the blowers will continue to operate until the internal firebox
temperatures have fallen to a preset level.
1. Your stove is equipped with a high temperature thermodisc. This unit has a manual reset thermodisc. This safety switch has
two functions.
A. To recognize an overheat situation in the stove and shut down the fuel feed or auger system.
B. In case of a malfunctioning convection blower, the high-temperature thermodisc will automatically shut down the
auger, preventing the stove from overheating.
NOTE: On some units, once tripped, like a circuit breaker, the reset button will have to be pushed before restarting your stove.
On other units the thermodisc has no reset button and will reset itself once the stove has cooled. The manufacturer recommends that
you call your dealer if this occurs as this may indicate a more serious problem. A service call may be required.
2. If the combustion blower fails, an air pressure switch will automatically shut down the auger.
NOTE: Opening the stove door for more than 30 seconds during operation will cause enough pressure change to activate the air
switch, shutting the fuel feed off. The stove will shut down and show “E2” on the two digit display. The stove has to fully shut
down before restarting.
WARNING: Never shut down this unit by unplugging it from the power source.
10

CLEARANCES TO COMBUSTIBLES
INSTALL ALL VENTS AT CLEARANCES SPECIFIED BY THE VENT MANUFACTURER!
When your Pellet Stove Room Heater is being installed on a combustible floor it is mandatory that a 1/2” (13mm) thick non-
combustible hearth pad be installed under the heater. The non-combustible hearth pad must extend at least 6” beyond the
fuel loading and ash removal openings and at least the depth of the heater plus 6 inches (152mm) out in front of the heater.
The floor protector must extend 2” (51mm) beyond each side of the exhaust vent.
BACK WALL
Figure 5
Figure 6
Alcove Dimensions
36”
35”
40”
2”
6”
USA 6”
CANADA 8”
FLOOR PROTECTION
USA 6”
CANADA 18”
2”
FLOOR
PROTECTION
USA 6”
CANADA 8”
USA 6”
CANADA 18”
11

INSTALLING YOUR ROOM HEATER
You have already made the important decision of choosing your U.S. Stove Pellet Burning Room Heater; now your next step
is to determine where to install your new pellet stove heater. To get the most efficient use of re-circulated heat, you should
consider a room that is centrally located within your home. Choose a room that is large and open.
It is Extremely Important to maintain proper clearances from any combustible surfaces or materials in the room where your
heater will be located. You can find proper clearance measurements on page 11 of this manual and on the rating label
of your pellet stove.
The pellet stove can be vented through an exterior wall or into an existing masonry or metal chimney. The chimney must
be lined if it is over 6” (150mm) in diameter or if it has a cross-sectional area of over 28 square inches (711mm2). Venting
can pass through the ceiling and roof if approved pipe is used. Where passage through a wall, or partition of combustible
construction is desired, the installation must conform to CAN/CSA-B365.
DO NOT OBTAIN COMBUSTION AIR FROM THE ATTIC, GARAGE OR ANY OTHER UNVENTILATED AREA. YOU MAY
OBTAIN COMBUSTION AIR FROM A VENTILATED CRAWLSPACE.
DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST VENTING SYSTEM OF THIS UNIT.
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER HEATER, FURNACE OR APPLIANCE.
INSTALL VENT AT CLEARANCES SPECIFIED BY THE VENT MANUFACTURER.
ONLY USE APPROVED MATERIAL FOR INSTALLATION, FAILURE TO DO SO MAY RESULT IN PROPERTY DAMAGE,
BODILY INJURY, OR EVEN DEATH.
This appliance is certified for use with listed 3 inch or 4 inch “PL” or “L” pellet venting products as well as Selkirk’s Direct-
Temp Vent system for pellet burning appliances. The use of other components other than stated herein could cause bodily
harm, heater damage, and void your warranty.
HORIZONTAL EXHAUST VENT INSTALLATION
1. Locate your pellet stove in a location which meets the requirements of this manual, but in an area where it does not
interfere with the house framing, wiring, etc.
2. Install a non-combustible hearth pad underneath the pellet stove. This pad should extend at least 6” (152mm) in front
of the unit.
3. Place the pellet stove approximately 15” (381mm) away from the interior wall.
4. Locate the center of the exhaust pipe of your unit. This point should then be extended to the interior wall of your house.
Once you have located the center point, on the interior wall, cut a 7” (175mm) diameter hole through the wall.
5. The next step is to install the wall thimble, refer to the instructions which come with the wall thimble for this step.
6. Install the appropriate length of exhaust vent pipe into the wall thimble. See steps 11 and 12 when determining the cor-
rect length of exhaust vent to use.
7. Outside Fresh Air is Mandatory when installing this pellet stove room heater in airtight homes and mobile
homes. Be sure that the outside air vent has an approved cap on it to prevent rodents from entering. Be sure to install
in location that won’t become blocked with snow, etc.
8. The air intake pipe is equipped with a butterfly valve that is preset to maximum air intake. For optimum operating ef-
ficiency you may calibrate the butterfly valve to provide less intake air. (See Figure 7) Caution: Too much restriction
on the intake air will cause dirtier burn, therefore, will require more frequent cleaning.
9. Connect the exhaust vent pipe to the exhaust outlet of your pellet stove.
10. Secure all vent joint connections with 3 screws. Seal the exhaust vent joint connections with high temperature silicone
sealant.
11. Push the unit straight back to the interior wall, being sure to maintain the minimum clearances to combustibles 6”
(152mm) to the back of the unit. Seal the annular space of the wall thimble and around the vent pipe with high tem-
perature silicone sealant.
12. The exhaust vent pipe must extend at least 12” (300mm) out past the exterior wall. Seal the annular space of the wall
thimble and around the vent pipe with high temperature silicone sealant.
13. Install an approved horizontal termination cap or if necessary install a 90° elbow and appropriate length of vertical vent-
ing. An approved vertical vent cap is recommended.
12

INSTALLING YOUR ROOM HEATER - continued
HORIZONTAL EXHAUST VENT INSTALLATION
Figure 8
Listed Horizontal Cap
Exhaust Vent
Wall Thimble Mfg.
by Pellet Vent Mfg.
Combustion Air Intake
with approved cap
6” (152mm)
Clearance to
Combustibles
Floor Protector
6” (152mm) Clearance
Front
Figure 9
6” (152 mm) Clearance
Wall to Back of Unit
Wall Thimble
Exhaust Vent
45 Elbow
or Listed Termination
Rodent Mesh Cap
Combustion Air
Intake with
approved cap
12” (300mm)
Existing Floor
(Combustible)
Non-Combustible
Floor Protection
6” (152 mm)
13

INSTALLING YOUR ROOM HEATER - continued
FREESTANDING INTERIOR VERTICAL INSTALLATION
1. Locate your Pellet Stove Room Heater in a location which meets the requirements of this manual, but in an area where
it does not interfere with the house framing, wiring, etc.
2. Install a non-combustible hearth pad underneath the pellet stove. This pad should extend at least 6” (152mm) in front
of the unit.
3. Place your Pellet Stove Room Heater on the hearth pad and locate the unit in a manner that will leave the exhaust vent
with a minimum of 3” (75mm) clearance to any combustible wall.
4. When installing the air intake, locate the center of the combustion air intake pipe at the back of your unit. Line up the
center with the same spot on your exterior wall and cut a 2-1/2” (64mm) diameter hole through the wall.
5. Install the combustion air intake pipe.
6. Secure all vent joint connections with 3 screws. Seal the exhaust vent joint connections with high temperature silicone
sealant.
7. Install a tee, with a cleanout, on the exhaust pipe found at the rear of your unit.
8. Install approved vent upward through the ceiling. When you pass through the combustible framing ensure that the ap-
propriate ceiling firestop is used. You must maintain a minimum 3” (75mm) clearance to combustibles and keep any
insulation away from the exhaust vent.
9. Extend the exhaust vent through the roof flashing and ensure that the vertical cap is approximately 36” (900mm) above
the roof.
Listed Termination
Flashing
36” (900 mm)
3” (75 mm) Clearance
to Combustibles
Use Ceiling Firestop
3” (75mm) Clearance
to Combustibles 3” (75 mm)
Tee with
Cleanout
6” (150 mm)
Combustion Air
Intake with approved cap
Non-Combustible
Floor Protection
Existing Combustible
Floor
Figure 10
6” (150 mm)
Use Ceiling Firestop
3” (75mm) Clearance
to Combustibles
14

INSTALLING YOUR ROOM HEATER - continued
FREESTANDING EXTERIOR VERTICAL INSTALLATION
1. Locate your Pellet Stove Room Heater in a location which meets the requirements of this manual, but in an area where
it does not interfere with the house framing, wiring, etc.
2. Install a non-combustible hearth pad underneath the pellet stove. This pad should extend at least 6” (152mm) in front
of the unit.
3. Place your Pellet Stove Room Heater on the hearth pad and locate the unit in a manner that will leave the exhaust vent
with a minimum of 3” (75mm) clearance to any combustible wall.
4. If installing the optional air intake, locate the center of the combustion air intake pipe at the back of your unit. Line up the
center with the same spot on your exterior wall and cut a 2-1/2” (64mm) diameter hole through the wall.
5. Secure all vent joint connections with 3 screws. Seal the exhaust vent joint connections with high temperature silicone
sealant.
6. Locate the center of the exhaust pipe, at the back of the unit. Line up the center with the same spot on the exterior wall
a cut a 7” (178mm) diameter hole through the wall.
7. Install the wall thimble; (refer to the instructions which come with the wall thimble).
8. Install an approved exhaust vent through the wall; be sure to make sure that 3” (75mm) clearances to combustibles are
maintained.
9. Secure all vent joint connections with 3 screws. Seal the exhaust vent joint connections with high temperature silicone
sealant.
10. Install a Tee with a cleanout on the end of the exhaust pipe and then install approved venting upward from there. Be
sure to install support brackets every 5’ (1525cm) to keep the venting straight and secure.
11. Extend the exhaust vent through the roof flashing and ensure that the vertical cap is approximately 36” (900mm) above
the roof.
Figure 11
Listed Termination
Flashing
36” (900 mm)
3” (75 mm)
Clearance
6” (150 mm)
Clearance
Wall Thimble
Tee
w/ Cleanout
Support Bracket
6” (150mm)
Non-Combustible
Floor Protection
Existing Combustible
Floor
Combustion Air Intake
with approved cap
15

INSTALLING YOUR ROOM HEATER - continued
SELKIRK DIRECT-TEMP VENT SYSTEM FOR PELLET STOVE HEATERS
Images courtesy of Selkirk
16

INSTALLING YOUR ROOM HEATER- continued
SELKIRK DIRECT-TEMP VENT SYSTEM FOR PELLET STOVE HEATERS
UP AND OUT HORIZONTAL TERMINATION KIT
FIGURE 12
Images courtesy of Selkirk
17

INSTALLING YOUR ROOM HEATER- continued
SELKIRK DIRECT-TEMP VENT SYSTEM FOR PELLET STOVE HEATERS
STRAIGHT OUT HORIZONTAL TERMINATION KIT
FIGURE 12
Images courtesy of Selkirk
18

INSTALLING YOUR ROOM HEATER - continued
SELKIRK DIRECT-TEMP VENT SYSTEM FOR PELLET STOVE HEATERS
Images courtesy of Selkirk
THROUGH THE ROOF VERTICAL TERMINATION KIT
FIGURE 14
19

MOBILE HOME INSTALLATION
Mobile home installation should be done in accordance with the Manufactured Home and Safety Standard (HUD), CFR 3280,
Part 24. Canadian installations require that the heater must be connected to a 3 or 4 inch, factory-built chimney conforming to
CAN/ULC-S629. See the installation illustrations in this manual for minimum height above the roof. U.S. Stove suggests the
use of Selkirk’s Pellet Venting Products. Refer to their installation instructions for proper installation of the exhaust and com-
bustion air intake. The chimney installation must allow for removal in case of mobile home transportation, especially outside
connections. You may contact your local building authority or person having jurisdiction on height restrictions.
In order for this unit to be installed in a mobile home the following criteria must be met:
• The unit must be secured to the floor using lag bolts in the holes provided in the pedestal base.
• Ensure that the unit is permanently electrically grounded to the chassis of your home with 18 gauge copper wire.
IT IS MANDATORY TO TAKE THE COMBUSTION AIR FROM THE OUTSIDE WHEN INSTALLING THIS UNIT IN AIR
TIGHT OR MANUFACTURED/MOBILE HOMES.
CAUTION: THE STRUCTURAL INTEGRITY OF THE MANUFACTURED HOME FLOOR, WALL, AND CEILING/ROOF
MUST BE MAINTAINED. MAKE SURE TO MAINTAIN AN EFFECTIVE VAPOR BARRIER BY SEALING WITH SILICONE
WHERE THE CHIMNEY OR OTHER COMPONENTS PENETRATE TO THE EXTERIOR OF THE STRUCTURE. REFER
TO AND FOLLOW THE CHIMNEY MANUFACTURER’S INSTALLATION INSTRUCTIONS.
WARNING: DO NOT INSTALL IN SLEEPING ROOM.
NOTE: Only the freestanding models are approved for installation into a mobile home.
Figure 15
HEARTH PAD
FLOORING
GROUND WIRE, DIRECTLY
TO METAL CHASSIS
STEEL FRAME
1/4” LAG BOLTS,
SECURELY FASTENED
20