RSF Woodburning Fireplaces OPEL+ KEYSTONE User manual

RSF-IIPPK_2020-02
Owner's Manual
Residential Factory Built Fireplace
Operation • Maintenance • Installation
OPEL PLUS
KEYSTONE
Keep these instructions for future use.
Industrial Chimney Company Inc.
400 J.-F. Kennedy, St-Jerome, QC, Canada, J7Y 4B7
Telephone: [phone]
www.icc-rsf.com

OPEL PLUS KEYSTONE Owner's Manual 2 RSF Woodburning Fireplaces
Dear Customer,
The OPEL+ KEYSTONE incorporates technology with elegance to give you a beautiful view of
the fire without compromising on heating efficiency or environmental quality.
We have designed your new OPEL+ KEYSTONE to be easy to install, operate and maintain. It
is in your best interest to become familiar with it. Study your manual to be sure that the installation
is correct, then follow the guidelines for operation and maintenance.
We at RSF Woodburning Fireplaces congratulate you on your choice of the OPEL+
KEYSTONE, and are confident that you have purchased a fireplace that is simply, the best.
Sincerely,
RSF Wodburning Fireplaces Team
June 2018
TABLE OF CONTENTS
SAFETY FIRST 3
DO'S AND DON'TS 3
CREOSOTE: FORMATION AND REMOVAL 3
GENERAL SPECIFICATIONS 4
THE COMBUSTION CONTROL SYSTEM 4
CATALYTIC COMBUSTOR 4
OPTIONS 4
UNIT DIMENSIONS AND CLEARANCES 7
OPERATION 9
AIR CONTROLS 9
IMPROVING EFFICIENCY 10
IMPORTANCE OF DRAFT 10
BURN TIME VS. HEAT OUTPUT 10
FUEL 10
FIRST FIRES 10
LIGHTING 11
ENGAGE THE CATALYST 11
CATALYST TEMPERATURE PROBE 11
ADJUSTING THE BURN RATE 12
REFUELING 12
TROUBLESHOOTING PROBLEMS 12
MAINTENANCE 13
CATALYTIC COMBUSTOR 13
REPLACING THE CATALYST 13
CHIMNEY CLEANING 13
DISPOSAL OF ASHES 13
GENERAL CLEANING 13
PAINT 13
GLASS CLEANING 14
FACEPLATE REMOVAL 14
DOOR SEAL 15
DOOR ADJUSTMENT 15
INSTALLATION 16
LOCATION 16
CEILING CLEARANCE 20
STANDOFFS INSTALLATION 20
SECURING THE FIREPLACE IN PLACE 20
FRAMING 20
OUTSIDE AIR DUCT 20
CHIMNEY 21
CHIMNEY INSTALLATION 22
OFFSET CHIMNEY 23
CHASE ENCLOSURE 24
MASONRY CHIMNEY 24
FINISHING AROUND THE FIREPLACE 26
MANDATORY OPTIONS WITH TOP LOUVER BLOCKED
26
HEARTH EXTENSION 26
BENEATH HEARTH EXTENSION 26
MANTEL 27
REFRACTORY BRICKS' INSTALLATION 27
GAS LOG INSTALLATION 28
LISTING LABEL 30
COMPLETE OPTIONS LIST 31
CONFIGURED OPTIONS LIST 33
REPLACEMENT PARTS 34
LIMITED WARRANTY 35

OPEL PLUS KEYSTONE Owner's Manual 3 RSF Woodburning Fireplaces
SAFETY FIRST
DO'S AND DON'TS
If this fireplace is not properly installed, a house fire could result. For your safety, follow the installation
directions. Contact your local authority having jurisdiction (such as municipal building department, fire
department, fire prevention bureau, etc.) regarding restrictions and installation requirements, and the need
to obtain a permit.
To ANYONE using this fireplace: these DO's and DO NOTs are for your safety.
1. DO read this instruction manual before lighting your first fire.
2. DO burn seasoned wood fuel, densified fuel logs wood fuel or a combination of densified fuel logs and wood
fuel.
3. DO operate the fireplace with the door either fully closed. If the door is left partly open, gas and flame can
be drawn out of the fireplace opening, creating both fire and smoke hazards.
4. DO keep all combustible materials (furniture, firewood, etc.) at least 4' away from the front of the fireplace.
5. This fireplace contains a catalytic combustor, which needs periodic inspection and replacement for proper
operation. DO learn to properly use the catalytic combustor and properly maintain it.
6. Do have at least one smoke detector on each level of the house and at least one carbon monoxide detector.
7. To avoid glass breakage, DO NOT slam the fireplace door.
8. DO NOT ever use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter fluid or similar liquids to start
or freshen up a fire in this fireplace. Keep all such liquids well away from the fireplace while it is in use.
9. DO NOT overfire the fireplace. If you are unable to slow down the burning rate of the fire or if the
chimney connector behind the top louver glows red, you are overfiring the fireplace.
10. DO NOT use a fireplace grate or other products not specified for use with this fireplace.
11. The burn rates are set by the semi-automatic air control at the factory. DO NOT tamper with the air control. DO
NOT install a flue damper that would allow you to reduce the chimney draft and thus slow the minimum burn
rate.
12. DO NOT burn chemical chimney cleaners.They contain contaminants that will render the catalyst inoperative.
13. To avoid damaging the catalytic combustor, DO NOT operate this fireplace in a manner inconsistent with the
operating instructions in this manual.
14. DO NOT operate this fireplace if the catalytic combustor is deactivated or removed, it is against the law.
15. DO NOT install an insert in this fireplace.
 NOTE: We strongly recommend that our products be installed and serviced
by professionals who are certified by the National Fireplace Institute in the
U.S. or by Wood Energy Technology Transfer Inc. in Canada.
CREOSOTE: FORMATION AND REMOVAL
When wood is burned slowly, it produces tar and other organic vapors which combine with the expelled moisture
from the wood to form creosote. The creosote vapors can condense in the relatively cool chimney of a slow burning
fire. As a result, creosote residue accumulates on the flue lining. When ignited, this creosote makes an extremely
hot fire.
The chimney should be inspected periodically during the heating season to see if a creosote build-up has occurred.
The presence in a chimney of soot or creosote in excess of 1/8" (3mm) thick will indicate the need for immediate
cleaning, possible modification of burning procedures, and more frequent inspections.

OPEL PLUS KEYSTONE Owner's Manual 4 RSF Woodburning Fireplaces
❖ WARNING: BURN DRY WOOD ONLY.
DO NOT BURN: DRIFTWOOD, TREATED WOOD, COAL,GARBAGE, OR PLASTIC.
Do not use construction scraps (e.g. 2x4 or plywood scraps) as your only supply of fuel as you can overheat and
seriously damage the fireplace.
We do not recommend using wax fuel logs (e.g. Duraflame) in this fireplace because it will dirty the glass. If you
choose to use them, do not use more than one at a time and do not poke or stir while it is burning. Use only firelogs
that have been evaluated for fireplace use. In Canada, they must meet the requirements of ANSI/CAN/UL/ULC
2115, Processed Solid Fuel Firelogs and Firestarters. Refer to the firelog warnings and caution markings on
packaging prior to use.
GENERAL SPECIFICATIONS
The OPEL+ KEYSTONE is environmentally friendly and complies with the 2020 United States Environmental
Protection Agency (EPA) particulate emission standard with crib wood at an emission rate of 0.7 grams per hour.
It also has an optimal efficiency of 80%. This has been established using the lower heating value of the wood, under
the best burning conditions and using CSA B415.1-10 calculations.
Furthermore, the weighted average EPA efficiency is 70%. The later has been established using the higher heating
value of the wood, while burning EPA crib wood and using CSA B415.1-10 calculations.
It has been shown to deliver heat ranging from 10 000 to 70 000 BTU/h with an average of 55 000BTU/h. Please
refer to the "Improving Efficiency", the "Importance of Draft", the "Burn Time vs. Heat Output" and the "Fuel" sections
to better understand the various factors that influence the efficiency and heat output of your fireplace.
THE COMBUSTION CONTROL SYSTEM
Since the door is sealed, all combustion air must come through the OPEL+ KEYSTONE's draft control. This control
has a bimetal coil to allow more air when the unit is cold, and less air when the unit is hot, guarding against
overheating. It can be controlled either manually with the lever that is located on the right below the door, or
automatically with an optional electric wall thermostat.
For the first few days, it is best to operate the fireplace with the manual control fully open (moved to the right as far
as possible). Just control the fire as you would any normal fireplace, using one or two logs at a time for a smaller
fire, or more logs for more heat. Once you become familiar with operating the fireplace with the control open, you
can start experimenting with lower settings. Remember: when the fireplace is hot, the control will not need as much
movement to reduce the fire as when it is cold. The bimetal coil will already have shut the damper part way. See
the "OPERATION" section for the details.
CATALYTIC COMBUSTOR
The OPEL+ KEYSTONE is equipped with a catalyst. It ignites creosote-forming gases in wood smoke at significantly
lower temperatures. As a result, you get less creosote and more heat from your fire at low to medium burn rates.
Less fuel goes up your chimney in the form of smoke.
If the smoke that passes through the catalyst is not hot enough (at least 150°C-300°F), it will accumulate soot,
reduce performance and increase the maintenance required. Opening the bypass allows smoke to exit the chimney
while bypassing the catalyst. The bypass should always remain open when lighting a new fire or reloading a fire.
DO NOT burn chemical chimney cleaners, as they can contain contaminants that will render the catalyst inoperative.
See the "OPERATION" section for the details.
OPTIONS
Louver Options
Without the Keystone Top Louver
When the OPEL+ KEYSTONE is installed without the upper Keystone Louver, two Gravity Vent Kits (see "
Gravity vent Options" below) are required on top of the fireplace for hot air circulation.
With the Keystone Top Louver (FO-OPLK)

OPEL PLUS KEYSTONE Owner's Manual 5 RSF Woodburning Fireplaces
When the Keystone Louver is installed, no gravity vents are required. Hot air circulation will flow out of the
Keystone Louver. Gravity vents remain optional, but are not mandatory in this configuration.
Gravity vent Options
Gravity vent kits allow hot air to be ducted from the fireplace to a room above or on the same level as the fireplace.
OPEL+ KEYSTONE installations without the Keystone Top Louver require two gravity vents for heat circulation.
Each gravity vent kit includes 5’ of insulated flexible ducting, a fireplace adapter, an outlet grill adapter, and a
decorative outlet grill.
Additional 5’ lenghts of insulated flexible ducting can be ordered with the part code FO-DUCT5. Nevertheless,
gravity vents have a maximum length of 15’.
FO-V2
FO-VGC (grill only for FO-V2)
FO-V3
Heating Options
For increased air circulation and marginally more heat output, you can add the Circulating Internal Blower (FO-
FDHB5-N) to your Louvered OPEL+ KEYSTONE.
For constant heat, day and night, you will be surprised by what the Thermostat Option (FO-FDHC4) can do for you.
This option provides you with the necessary parts to automatically control the draft control via a wall thermostat. It
will keep your room temperature as even as though you were heating with oil, gas or electricity, except you will find
wood heat more comfortable.
To maximize the distribution of the heat generated by your OPEL+ KEYSTONE fireplace throughout many rooms
and different floors, consider the Central Heat Option. With our Central Heat Blower (FO-FDHB6-1), you can use
ducts to circulate the fireplace heat to one or many rooms. The Central Heat Control (FO-FDHC6) will enable
automatic control of the Central Heat Blower via a wall thermostat and thermal switch. The Zone Heat Control (FO-
FDHCZ1) along with Zone Damper Kits (FO-FDHCZ2) will provide the same features as the Central Heat Control
but for more than one heating zone. If you wish to install the Central Heat Blower on a Clean Face OPEL+
KEYSTONE, you will need the Central Heat T (FO-T) that will enable you to connect the central heat duct along
with the left gravity vent on the fireplace.
For a simpler way to circulate a moderate amount of warm air from the fireplace to another room, we offer the Heat
Dump Kit (FO-HD) which uses a smaller fan than the Central Heat Blower. It is most often used to provide
supplemental heating to a basement room when the fireplace is on the main floor but it can also be used to send
the warm air upstairs.
General Options
To simplify the installation of thin non-combustible materials such as ceramic tile or sliced brick, we have designed
a very versatile rock retainer kit (FO-KK). It is not designed or required for full brick or stone. Thin materials can
also be installed directly on the face of the OPEL+ KEYSTONE using high temperature silicone as glue, without a
rock retainer kit.
To remove accumulated ashes from the firebox, simply shovel them in to a metal container. Nevertheless, you may
find the optional Ash Pan Kit (FO-AP) very convenient. You remove the plug from the firebox and sweep the ashes
into a hole to the ash pan. When the ash pan is full, simply remove the ash pan by the bottom louver and dispose
of the ashes properly.
 NOTE: Many options require wiring and/or electricity for their installation. If there is any chance that any of these
options will be installed in the future then suitable wiring should be run during framing. Otherwise, it will be difficult
to install these options later. You can refer to page 31 for a list of options that require electricity.

OPEL PLUS KEYSTONE Owner's Manual 6 RSF Woodburning Fireplaces
Detailed installation instructions are included in the box with each option. These can also be obtained from our
Internet Web Site: www.icc-rsf.com.
❖WARNING: THIS FIREPLACE HAS NOT BEEN TESTED WITH AN UNVENTED GAS LOG SET. TO REDUCE
RISK OF FIRE OR INJURY, DO NOT INSTALL AN UNVENTED GAS LOG SET INTO THIS FIREPLACE. DO
NOT INSTALL A GAS LOG LIGHTER BECAUSE THE HEAT PRODUCED BY THE FIREPLACE WILL
PERMANENTLY DAMAGE THE GAS LOG LIGHTER.

OPEL PLUS KEYSTONE Owner's Manual 7 RSF Woodburning Fireplaces
UNIT DIMENSIONS AND CLEARANCES
For the side wall
clearance,
see Table 1 (B)
Distance from the
fireplace side standoff
to the side of the
firebox opening:
7 1/8"
For the mantel
shelf clearance,
see Table 1 (K)
Distance from the
fireplace base to the
top of the firebox
opening:
26 3/8"
Without the Keystone top louver With Keystone top louver
Figure 1 Unit Dimensions and Clearances
Refer to
Table 1 (J)
for maximum
mantel depth
Refer to Table 1 (K)
for minimum mantel
height above the
firebox opening
Refer to Table 1 (H)
for minimum width
of hearth extension Refer to Table 1 (G)
for minimum depth
of hearth extension
Non-combustible hearth extension
and spark guard (refer to Table1
(I) and text for particulars)
Refer to Table 1
(B) for minimum
distance of side
wall to the
fireplace
5/8"

OPEL PLUS KEYSTONE Owner's Manual 8 RSF Woodburning Fireplaces
❖ WARNING: COMBUSTIBLE FRAMING IS NOT PERMITTED IN THE SPACE DIRECTLY ABOVE THE
FIREPLACE. THE ONLY EXCEPTION IS FOR FRAMING USED TO SUPPORT THE FACING MATERIAL AND
MANTEL. THE AREA ABOVE THE FIREPLACE MUST BE FREE OF COMBUSTIBLES FOR AT LEAST THE
HEIGHT PROVIDED IN TABLE 1(C).
Table 1 Unit Dimensions and Clearances
A
Distance of combustible material from side, back and top standoffs
0"
(0,0 mm)
B
Minimum distance of side wall to the side of the firebox opening
16"
(406 mm)
C
Minimum ceiling height: measured from the base of the
fireplace to the lowest point of the ceiling above the fireplace.
Applies both to the inside and outside of the fireplace
enclosure.
sealed enclosure
vented enclosure
7'
6'
(2,13 m)
(1,83 m)
D
Minimum chimney height: minimum total chimney height from fireplace top to
below the chimney rain cap
12'
(3,66 m)
E
Maximum chimney height: maximum total chimney height from fireplace top to
below the chimney rain cap
40'
(12,19 m)
F
Maximum chimney height supported by the fireplace
18'
(5,47 m)
G
Minimum depth of non-combustible hearth extension: from the front of the fireplace
18"
(457 mm)
H
Minimum width of non-combustible hearth extension: total width, must be centered
on the firebox opening
42"
(1,07 m)
I
Minimum width of the spark guard
36"
(914 mm)
J
Maximum mantel depth (see Table 2 for other mantel sizes)
12"
(305 mm)
K
Minimum height of a combustible mantel above the top of the firebox opening:
from the highest point of the firebox opening to below the combustible mantel (see
Table 2 for other installation heights) (refer to the "Installation: Mantel" section for
particulars)
36 ½"
(927 mm)
L
Minimum distance of combustible wall materials above the fireplace facing from
the firebox opening (other than the combustible mantel shelf, see J and K above)
39 ¼"
(997 mm)

OPEL PLUS KEYSTONE Owner's Manual 9 RSF Woodburning Fireplaces
Table 2 Various Mantel Depths and Corresponding Installation Heights
Maximum Mantel Depth
Minimum Installation Height
0" to 4"
32"
6"
33 1/8"
8"
34 ¼"
10"
35 3/8"
12"
36 ½"
No combustible mantel can be installed lower than 32" above the top of the firebox opening. A combustible mantel
cannot be wider than 12".
For combustible mantel depths not mentioned in the list above, you can interpolate the minimum installation
height between the two closest mantel depths. For example:
• Mantel depth to be installed: 9 ¼"
• It is between 8" and 10" with corresponding installation heights of 34 ¼" and 35 3/8"
• So: ((9.25 – 8) / (10-8) x (35.375 - 34.25)) + 34.25 = 34.95 = 35"
• Minimum installation height of a 9 ¼" mantel: 35" above the firebox opening.
If the combustible mantel has a cross-section with variable depth, it must be installed so that its widest part is not
installed lower than the corresponding minimum installation height while making sure that the lowest point of the
mantel is not installed lower than the minimum installation height corresponding to its depth.
Refer to the "Installation: Mantel" section for details.
OPERATION
AIR CONTROLS
Unlike most open fireplaces, RSF fireplaces don’t have flue
dampers. Instead, the system is sealed by closing the door, and the
amount of air entering the firebox is controlled by the combustion
air control lever on the front of the fireplace on the right below the
door (see Figure 2) which can be moved up or down. Setting the air
control lever all the way open (up) will allow the maximum amount
of air into the firebox. Closing the air control (down) will reduce the
amount of air entering the firebox.
Bi-metallic Damper
The bi-metallic damper is a unique feature built into your OPEL+
KEYSTONE fireplace. As the fireplace heats up it will activate the
bi-metallic damper. This will automatically begin to shut down the
air entering the firebox, slowing the combustion process. This will
save you wood in the long run, and prevent the fireplace from
overheating and causing potential damage to the firebox. We
suggest that the combustion air control lever is used as the
primary control to limit the oxygen entering the firebox, and
that the bi-metallic damper is left as an additional safety
system.
Outside Air Control
The OPEL+ KEYSTONE has been designed to offer you the choice to use outside air or inside air for combustion.
You will find a sliding door behind the bottom louver and below the firebox. Push the sliding door towards the back
Figure 2 Air Control

OPEL PLUS KEYSTONE Owner's Manual 10 RSF Woodburning Fireplaces
to select outside air or pull it toward the front to select inside air as the combustion air. Because outside air is
generally colder and denser it will help to start the fire. In some cases, this fresh air will also help compensate for
negative pressure problems within the house; however, it will not prevent the fireplace from smoking in a severely
depressurized house.
IMPROVING EFFICIENCY
The location of your fireplace will affect how efficiently it heats the home. Your fireplace should be located in part of
the house you want to be the warmest. Trying to heat the main floor with a fireplace in the basement will generally
overheat the basement and waste fuel. Certain RSF options offer the ability to move heat from the main floor to the
basement. This allows you to efficiently heat your primary space while also heating the basement as a secondary
space.
The efficiency can also be influenced by various factors such as the draft in the chimney (refer to "Importance of
Draft" below), the amount of wood burning at any point (see "Burn Time vs. Heat Output" below) and the quality of
the wood (refer to "Fuel" below).
All of these factors must be considered and optimize in order to recover the maximum heat from your fireplace.
IMPORTANCE OF DRAFT
Draft is the natural force which pulls air from the fireplace up the chimney. The strength of draft in your chimney
depends on a variety of factors, including chimney height, nearby obstructions, altitude, etc.
Excessive draft can result in a hotter fire than intended or reduced burn times as more air is pulled through the
fireplace. It will also result in less heat recovery since the heat will not have as much time to irradiate into the room
before being sucked into the chimney.
Weak draft can result in smoke entering the room and difficulty lighting or operating the fireplace. Weak draft is
often incorrectly associated as a blockage in the air intake for the fireplace. Adding chimney height is the most
common solution. See Table 3 for minimum chimney height recommendations.
BURN TIME VS. HEAT OUTPUT
The faster your fireplace burns the more heat it will create; however, faster fires result in much more hot air flow up
the chimney which means you are sacrificing efficiency. Fast burning fires (lots of air) go through much more wood
than slow burning fires. To get the most out of your OPEL+ KEYSTONE fireplace, adequately adjust the combustion
air control lever at the appropriate time. If the fire seems to be burning too quickly, turn the air down. If the fire is
smoldering and there are no visible flames, turn the air up. This way you’ll always be getting the most out of your
fuel.
FUEL
All modern high efficiency fireplaces and woodstoves are designed to burn best with seasoned cordwood. Seasoned
wood can be defined as wood that has been cut, split and let dry under cover for a minimum of 6 months, preferably
a year or more. Dry seasoned wood generally contains less than 20% moisture content. Attempting to burn fuel
with a high moisture content will be difficult and result in lower efficiency, increased creosote buildup and dark
deposits on the glass. It’s possible to burn a very large amount of wood and get very little heat if the wood is wet.
The type of wood you select is also important. All types of wood give off more or less the same number of BTU’s
per pound. Since softer woods are less dense than hardwoods it is possible to put more weight of hardwood in the
firebox; in other words, all woodburning appliances will burn longer and more evenly with hardwoods. Never burn
scrap, garbage, treated wood or driftwood as they produce much more pollution and can corrode the firebox and
chimney as well. Burning large amounts of paper, cardboard, mill ends, or construction waste can easily over fire
and damage the fireplace or even ignite a chimney fire if the flue is dirty.
FIRST FIRES
You will experience a slow start-up during the first few fires. The refractory bricks lining the firebox contain moisture
from manufacturing and require a few hot fires to evaporate the moisture. While there is still moisture in the bricks,
they will be black with smoke deposits. When the moisture has dissipated, the bricks will turn white. Unlike cast iron

OPEL PLUS KEYSTONE Owner's Manual 11 RSF Woodburning Fireplaces
stoves, there is no need to cure the fireplace itself by starting with small fires and progressively larger ones. Feel
free to light a large fire from the very start.
You will experience a slight odor during the first few fires. This odor comes from curing paint and oil burning off the
metal. The odor may be strong enough to set off your smoke detector. Open the doors and windows to allow the
room to properly ventilate.
LIGHTING
Ensure that the catalytic bypass is open (pulled all the way out)
while starting a fire (see Figure 3). Leave it open until the fire
is hot (approx. 15-30 minutes).
Ensure that the combustion air control lever is all the way to the
right in the open position. You will want as much air as possible
for the lighting process.
Start by laying your fire starter and kindling. Traditional fire
starter is crumpled newspaper; make sure to use enough to
light the kindling (5-6 pieces should do). Next lay the kindling
crisscrossed over the newspaper. Using plenty of kindling
ensures that the chimney will heat up quickly and establish a
strong draft, never use any flammable liquids. Light the
paper and close the door most of the way, but don’t shut it
completely. If the door is positioned correctly you will see air
rushing into the fireplace, this will help the lighting process.
Once the kindling is lit and sustaining fire, you can add some
small pieces of seasoned cordwood. Use the andirons in front
to help position the cordwood so as not to flatten and smother the fire you’ve just created. Always add at least 3
pieces of cordwood. Position your cordwood in a manner that the fire will hit several pieces as it rises and has air
gaps to flow through. Continue to leave the door slightly open until the cordwood is lit. Close the door completely
when the fire is established, if the fire goes out you’ve shut the door too early.
❖ WARNING: DO NOT USE A GRATE OR ELEVATE THE FIRE.
❖ WARNING: MAKE SURE TO KEEP THE FIRE BEHIND THE ANDIRONS. REPOSITION THE LOGS IF THEY
FALL AGAINST THE GLASS.
ENGAGE THE CATALYST
When the fire is hot, you should always engage the catalyst. To engage the catalyst, simply push the bypass handle
all the way in so that the bypass damper is closed. Closing the bypass will force the smoke through the catalyst.
When the catalyst is engaged you will receive more heat from your fireplace, and it will burn much more cleanly.
The catalyst should not be engaged (bypass closed) unless the fireplace is hot. If the bypass is closed before the
fireplace is hot, the catalyst will get dirty and no extra heat will be generated. The catalyst must be at least 175°C
(350°F) before it will start to burn off the wood smoke. Typically, this requires the fire to be lit for 15 to 30 minutes.
CATALYST TEMPERATURE PROBE
For an exact temperature reading at your catalyst, your fireplace is equipped with a temperature probe which
measures the temperature within 1" of the catalyst. A wire and connector have been dropped down on the left side
of the fireplace, inside the casing. You can connect to the probe with our optional Digital Temperature Display (FO-
DTD) or any standard Type K Thermocouple/Sensor Thermometer.
For an accurate temperature reading the bypass must be closed. Here are the important temperature ranges that
you need to be aware of:
• Below 175°C (350°F): not enough heat is generated from the fire, add more wood, open the air control and
keep the bypass opened.
• Between 175°C (350°F) and 700°C (1300°F): the temperature is just right for the catalyst, add more wood as
necessary and keep the bypass closed except for reloading.
Figure 3 Bypass Handle

OPEL PLUS KEYSTONE Owner's Manual 12 RSF Woodburning Fireplaces
• Above 700°C (1300°F): too much heat is generated from the fire, do not add more wood, close the air control
and let the fire die down to allow the temperature to drop within the normal operating range.
Try to AVOID OVERHEATING THE CATALYST as much as possible. Every time you do so, you reduce its useful
lifetime.
ADJUSTING THE BURN RATE
To get maximum efficiency out of your fireplace you will want to adjust the amount of combustion air entering the
firebox at the appropriate times. Gauge how much to close the combustion air by how the fire reacts once the
combustion air control lever has been moved. If the fire goes out and begins to smolder, there’s too little combustion
air entering the firebox. If there’s no change to the burn pattern, you can continue to close the combustion air further.
Eventually you should be able to close the combustion air all or most of the way. There should always be visible
fire inside the firebox at every step of the process.
REFUELING
Have your next wood load ready when you open the door. The temperature of the catalyst will decrease dramatically
while the door is open, so decreasing the amount of time the door is open will allow the catalyst to remain hot. Do
not rush.
Pull the bypass handle all the way out, into the open position and turn off the central heat and internal blowers, if
installed. The blowers may cause smoke to spill out of the fireplace if they are running.
The door should be opened slowly to keep smoke from spilling into your room. If you have a problem with smoke
spillage, check to see that all kitchen and bathroom fans have been shut off. They can cause negative pressure in
the house which pulls smoke out of the fireplace.
Take the time to poke and stir the unburnt wood that is left in the firebox. This will help revive the fire. Place the
new logs in the firebox. Try to maintain a clear path in front of the pilot, which is the metal tube centered between
the two andiron posts. The pilot brings an influx of air close to the coals that will help to keep the fire going. Once
the new wood has been loaded, keep the door slightly ajar for about 3-10 minutes to get the fire going depending
on how well seasoned your cordwood is and how much coals were left in the firebox. Once the new wood is well lit,
close the door.
Close the bypass when the wood is well lit.
TROUBLESHOOTING PROBLEMS
If smoke comes into the house when the door is opened:
• You may have opened the door too quickly and created a suction of air into the room, this can be avoided by
opening the door more slowly.
• Ensure your chimney is clean and your chimney cap is not plugged. Chimney caps with screens are more likely
to become clogged with creosote buildup.
• Make sure you have adequate chimney height for your system. Refer to the Chimney section of this booklet
and make sure to take altitude, and number of elbows into consideration.
• If you have purchased the central heat kit option or the circulating internal blower, make sure the blower is off
before opening the door.
• Check to see if other fans in the home are running, particularly a kitchen range hood, or bathroom exhaust fan.
This can affect the pressure in the home.
• Try opening a window near the fireplace a little, this will equalize the pressure in the home and should correct
a draft problem. Once proper draft is established the window can be closed.
• Make sure you’ve used enough kindling to establish a hot fire quickly. The most likely time that smoke will enter
the home is during the lighting process.
• If your fireplace burns excessively fast, seemingly uncontrollably:
• Check all door seals and gaskets to ensure that air is not leaking into the firebox. See “Door Seal” for details of
how to verify the tightness fo the door.

OPEL PLUS KEYSTONE Owner's Manual 13 RSF Woodburning Fireplaces
MAINTENANCE
CATALYTIC COMBUSTOR
Over time ash can become attached to the catalyst. If ash is visible on the face of the catalyst, it should be removed
when the catalyst is cold. Brush the catalyst with a soft bristle brush (e.g. paint brush) to clear the ash. Also pass a
vacuum near the face of the catalyst to remove the remaining ash but try to avoid contacting the catalyst directly.
Never touch the catalyst with any scrapers or hard bristle brushes and limit cleaning to the visible face of the catalyst.
Attempting to clean the individual openings in the catalyst can do more harm than good.
If you notice that your fireplace is not creating as much heat as it once did, the catalyst may require cleaning or
replacement. When having a hot fire with the bypass closed, watch the catalyst closely. If it is not burning red, then
it is not firing. If the catalyst does not fire for several days, even during a hot fire, a replacement is required. The life
expectancy of a catalyst is approximately 5-10 years. Replacement catalysts can be ordered from your local RSF
retailer.
REPLACING THE CATALYST
When the catalyst requires replacement, a Catalyst Replacement Kit can be ordered from your local RSF retailer
with the part code FO-CATP. To remove the old catalyst, start by removing the bolts that hold it in place on either
side. The bolts can be removed with a ½” wrench. Pull firmly on the catalyst once the bolts have been removed.
The gasket material that seals around the exterior of the catalyst will likely break and require replacement with the
new gasket that is included with the FO-CATP.
Wrap the new catalyst on all sides with the catalyst gasket. Enough gasket is supplied to wrap the catalyst with two
layers of the gasket material. Carefully insert the catalyst into the opening and reinsert the screws that hold it in
place. The catalyst gasket expands as it is heated; so, it is normal for the gasket to have some small gaps after
being inserted. As the gasket expands, the spaces will be filled.
CHIMNEY CLEANING
Check the chimney for creosote buildup every week or so until experience shows
how often you need to clean it. A buildup of 1/8" (3mm) or more should be
cleaned before more creosote accumulates. Close the fireplace door and open
the bypass prior to sweeping. Use an 7" round brush.
Once the chimney has been swept, any creosote or ash that has fallen into the
top of the firpelace can be removed with a flexible attachment for a vacuum (see
Figure 4) through the bypass opening.
DISPOSAL OF ASHES
Remove the ashes before they become too deep, i.e., before you have a spillage problem when you open the door.
The ashes should be placed in a metal container with a tight-fitting lid. The closed container of ashes should be
placed on a non-combustible floor or on the ground, well away from all combustible materials pending final disposal.
If the ashes are disposed of by burial, or otherwise locally dispersed, they should be retained in the closed container
until all cinders have thoroughly cooled.
GENERAL CLEANING
The high heat paint and plating can be cleaned with a soft damp cloth. Use a mild detergent and water. Do not use
abrasive cleaners.
PAINT
❖ WARNING: AVOID SPRAYING CERAMIC GLASS CLEANER OR OTHER CLEANERS ON THE PAINT OF
THE FIREPLACE. THEY MAY REMOVE THE PAINT AND MAKE TOUCHUPS DIFFICULT.
You can touch up the face of the OPEL+ KEYSTONE with Stove Bright Metallic Black high temperature paint which
is available at most fireplaces dealers. Follow the directions outlined on the spray can. DO NOT attempt to paint
Figure 4 Cleaning around
the bypass

OPEL PLUS KEYSTONE Owner's Manual 14 RSF Woodburning Fireplaces
the fireplace while it is still warm. Keep the spray can away from any source of heat or open flame. Ensure that
there is adequate ventilation in the room from the time you start painting until the paint is dry. Stove Bright is
available in a wide range of colors if you want to change the color of your OPEL+ KEYSTONE.
We recommend that you take the time to protect or remove any item that you do not want to paint such as: the door
glass, the plated door, the fireplace surroundings, etc. The glass can be removed from the door but you will have
to replace the window gasket.
GLASS CLEANING
In a controlled combustion firebox, temperatures are not always high enough to keep the glass perfectly clean. A
good hot fire once a day usually cleans off most of the deposits that have accumulated. Remember: the drier the
wood and the hotter the fire, the cleaner the glass. A word of caution: although heat will not break the glass, impact
can. Be careful not to hit the glass.
❖ WARNING: NEVER CLEAN THE GLASS WITH AN ABRASIVE CLEANER. USE ONLY A CLEANER
RECOMMENDED BY YOUR DEALER. NEVER CLEAN THE GLASS WHILE IT IS HOT, A SERIOUS BURN CAN
RESULT. THERE ARE A NUMBER OF EXCELLENT WOOD STOVE GLASS CLEANERS AVAILABLE WHICH
ARE FAR SUPERIOR TO REGULAR GLASS AND OVEN CLEANERS FOR WOOD STOVE APPLICATIONS.
FACEPLATE REMOVAL
It should not be necessary to remove the faceplate of the OPEL+ KEYSTONE. If for some reason the faceplate of
the fireplace must be removed, follow the steps below.
1. Open the fireplace door.
2. Remove the keystone centerpiece by loosening the nut on the back of the faceplate with a 7/16” wrench. It
then must be lifted and then pulled forward.
3. Remove the bolt behind the keystone.
4. Remove the wooden handle on the catalytic
bypass rod using a 5/32" hex key.

OPEL PLUS KEYSTONE Owner's Manual 15 RSF Woodburning Fireplaces
5. Grab the faceplate firmly and lift it off the fireplace. Four notches in the fireplace facing hold the Keystone
faceplate in place. It must be lifted and then pulled forward.
DOOR SEAL
To check for a proper door seal, insert a thin sheet of paper between the door and the front of the fireplace and
latch the door. Pull gently but firmly on the sheet of paper. If the paper either tears or is hard to retrieve, the
adjustment is correct. Repeat this procedure along all sides of the door.
The most important factor for controlling the burning rate of the OPEL+ KEYSTONE is a good seal on the door
gaskets. If the door gaskets are worn or damaged to the point where the seal is not adequate as described above,
then remove and replace the gasket(s). Replacement kits are available from your RSF dealer.
The OPEL+ KEYSTONE Door cannot be adjusted to tighten the door seal. The gaskets must be replaced when
necessary to resolve the issue.
 NOTE: An improper door seal can have a significant effect on the performance and durability of the fireplace. An
air leak can result in reduced efficiency, over firing, excessive wood consumption and premature catalyst and
fireplace failure.
DOOR ADJUSTMENT
For aesthetic reasons or to ensure the door handle properly aligns with the notch in the fireplace facing, the door
hinges can be adjusted on the left side of the door.
The door can be adjusted left-right or slightly rotated against the front of the fireplace as follows (see Figure 5):
1. Open the door completely.
2. Using a 5/32" hex key (allen key), slightly loosen the screws holding the door hinge pins against the face of the
fireplace. The hinge pins can be shifted left or right.
3. Verify the alignment of the door with the firebox opening and the latch opening.
4. Retighten the bolts once alignment is complete

OPEL PLUS KEYSTONE Owner's Manual 16 RSF Woodburning Fireplaces
INSTALLATION
Check with your local authority having jurisdiction (such as municipal building department, fire department, fire
prevention bureau, etc.) regarding restrictions and installation requirements, and the need to obtain a permit.
LOCATION
Your OPEL+ KEYSTONE fireplace may be installed in many different ways (see Figure 6) without any special floor
reinforcement. We recommend that you take the time to plan your entire installation (fireplace, chimney, and
options) before beginning the actual installation (refer to Figure 7 and Figure 8).
Dimensions of the fireplace along with clearances are shown in Figure 1 and Table 1.
❖ WARNING: IF THIS FIREPLACE IS NOT PROPERLY INSTALLED, A HOUSE FIRE CAN RESULT. FOR
YOUR SAFETY, FOLLOW THE INSTALLATION INSTRUCTIONS AND CLEARANCES. DO NOT PACK
REQUIRED AIR SPACES WITH INSULATION OR OTHER MATERIALS.
1. Note the location of roof and floor joists. Try to choose a location that does not require cutting them.
2. If possible, run the chimney up through the inside of the house. If it must be run outside, it should be enclosed
in an insulated enclosure (see Installation: Chase Enclosure). Remember, a cold chimney causes poor draft.
Figure 5 Door Adjustment

OPEL PLUS KEYSTONE Owner's Manual 17 RSF Woodburning Fireplaces
The framing dimensions are larger than required for ease of installation. Examples shown here are for a
Louvered OPEL+ KEYSTONE. The Heat Dump Option will also require an extra 12" on the selected side.
Figure 6 Louvered OPEL+ KEYSTONE Framing Examples
53 1/4"
39" 24"
82"
38"
58"
18"

OPEL PLUS KEYSTONE Owner's Manual 18 RSF Woodburning Fireplaces
*Refer to text to determine appropriate flashing
Figure 7 Louvered OPEL+ KEYSTONE General Installation
Rain Cap
Storm Collar
Flashing
Radiation Shield with a Storm
Collar in the Attic
Ceiling
Radiation Shield
Hearth Extension and
Beneath Hearth Extension
(refer to text for particulars)
Outside Air Inlet (refer to text for particulars)
WARNING: The wall
surface directly above the
fireplace must be
non-combustible (grayed
area, see Table 1 (L) and
text for particulars).
Cold air trap (optional)
Electrical and Gas Knock-Outs
Flashing*
And Roof Radiation Shield

OPEL PLUS KEYSTONE Owner's Manual 19 RSF Woodburning Fireplaces
*Refer to the text to determine the appropriate flashing
Figure 8 OPEL+ KEYSTONE General Installation without the Top Louver
Gravity Vent Option
(using flexible
insulated ducting
provided by ICC
only): Two gravity
vents are
MANDATORY
when the top louver
is not installed
(shown here)
Rain Cap
Storm Collar
Flashing
Radiation Shield with a Storm
Collar in the Attic
Ceiling
Radiation Shield
Hearth Extension and
Beneath Hearth Extension
(refer to text for particulars)
Outside Air Inlet (refer to text for particulars)
Cold air trap (optional)
Electrical and Gas Knock-Outs
WARNING: The wall
surface directly above the
fireplace must be
non-combustible (grayed
area, see Table 1 (L) and
text for particulars).
Gravity Vent Option
(using flexible
insulated ducting
provided by ICC
only): Two gravity
vents are
MANDATORY
when top louver is
not installed
(shown here)
Flashing*
And Roof Radiation Shield

OPEL PLUS KEYSTONE Owner's Manual 20 RSF Woodburning Fireplaces
CEILING CLEARANCE
Ceiling clearance is the distance from the base of the fireplace to
the ceiling. If you vent the fireplace enclosure, you can then have
a lower ceiling clearance as specified in Table 1 (C) for a vented
enclosure.
For a vented enclosure, you MUST install regular venting 3"x10"
grilles or larger into holes cut within 1' of both the floor and the
ceiling, to allow room air to circulate through the fireplace
enclosure and reduce heat buildup. These venting grilles may be
placed vertically or horizontally.
Under no circumstances should the distance between the ceiling
firestop and the base fireplace be less than the dimension
specified in Table 1 (C).
STANDOFFS INSTALLATION
Before you begin installing your fireplace, you MUST install the
standoff provided on the top of the fireplace.
The back shield MUST be open on the back side as shown at the
top of the Figure 9. You can then install the standoff on the
fireplace as shown in Figure 9 with the screws provided in the
manual bag.
DO NOT fill the gap between the fireplace and the standoff with
insulation or any other material; it will be covered with the
finishing material.
SECURING THE FIREPLACE IN PLACE
The fireplace MUST be attached to the floor.
Using the four small brackets that were securing the fireplace to the crate, attach the casing or base of the fireplace
to the floor. Position the brackets all around the fireplace in the same fashion as they were on the crate. If possible,
try to have at least one of the brackets screwed into the floor joist with 2" wood screws.
FRAMING
The enclosure walls can be framed with any suitable materials (2x4 or 2x6 studs, plywood, gypsum board, etc.).
Because of the high heat output potential of the OPEL+ KEYSTONE, combustible materials must NOT go closer to
the fireplace than the standoffs, top, back and sides.
❖ WARNING: COMBUSTIBLE FRAMING IS NOT PERMITTED IN THE SPACE DIRECTLY ABOVE THE
FIREPLACE. THE ONLY EXCEPTION IS FOR FRAMING USED TO SUPPORT THE FACING MATERIAL AND
MANTEL. THE AREA ABOVE THE FIREPLACE MUST BE FREE OF COMBUSTIBLES FOR AT LEAST THE
HEIGHT PROVIDED IN TABLE 1 (C).
OUTSIDE AIR DUCT
After the fireplace is correctly positioned, connect the outside air inlet to the outside (see Figure 10).
Use an insulated aluminium flexible duct rated at over 200° F. The duct should not exceed 12' vertical rise above
the base of the unit.
The air inlet should always be at least 5’ lower than the chimney rain cap and must never terminate in attic
spaces.
A 4" diameter duct can be used if the total duct run is less than 25'. For longer runs, use 5" diameter duct. Both 4"
and 5" connecting sleeves are provided with the fireplace.
1. Find a convenient location for the combustion air duct and outside air inlet. The outside air inlet can be above
or below floor level.
Figure 9 Standoff Installation