Lennox Hearth C160, CA160, SWI160 User Manual
INSTALLATION AND OPERATION MANUAL
EPA Certified
Wood-Burning
Fireplace Insert
Save These Instructions
For Future Reference
P/N 775211M, Rev. C, 09/2011
A French manual is available upon request. Order P/N 775211CF.
Ce manuel d’installation est disponible en francais, simplement en faire la demande. Numéro de
la pièce 775211CF.
US
Report # 050-S-03b-2
Striker™ C160
and SWI160
Striker™ CA160
Wood Fireplace Inserts
Striker™ Models C/A160 and SWI160
This appliance must be properly installed and operated in order to prevent the
possibility of a house fire. Please read this entire installation and operation
manual before installing and using your wood fireplace insert. Failure
to follow these instructions could result in property damage, bodily
Portland
injury or even death. Contact your local building or fire officials
to obtain a permit and information on any installation re-
quirements and inspection requirements in your area.
WARNINGS
• Hot! Do not touch! The glass and surfaces of this appliance will
be hot during operation and will retain heat for a while after
shutting off the appliance. Severe burns may result.
• Carefully supervise children in the same room as appliance.
CONGRATULATIONS!
When you purchased your new wood-burning fireplace insert,
you joined the ranks of thousands of individuals whose answer
to their home heating needs reflects their concern for aesthetics, efficiency and our environment. We extend our continued
support to help you achieve the maximum benefit and enjoyment
available from your new wood-burning fireplace insert.
Thank you for selecting a Lennox Hearth Products wood-burning
fireplace insert as the answer to your home heating needs.
TABLE OF CONTENTS
Using This Manual ......................................................................... 2
Important Safety Information ......................................................... 3
Testing Information ........................................................................ 4
Draft Requirements ........................................................................ 4
Selecting the Proper Venting System ............................................. 4
Negative Pressure Warning ........................................................... 5
Creosote .........................................................................................5
Ash Disposal .................................................................................. 5
Fuel ........................................................................................... 5
Burn-In Period ...............................................................................5
Paint Curing ................................................................................... 5
Brick Installation ............................................................................ 6
Required Clearances ...................................................................... 7
Hearth Protection ........................................................................... 8
Chimney Requirements .................................................................. 9
Installation Procedure - Masonry Chimney .................................... 9
Positive Flue Connection .............................................................. 10
Installation Procedure - Factory-Built Zero Clearance Fireplaces 11
Fireplace Pre-Installation Preparation ..........................................11
Insert Pre-Installation Preparation ............................................... 11
Chimney Liner Installation ........................................................... 12
Installing the Insert ...................................................................... 12
Post Installation Checks ............................................................... 12
Operating Hints ............................................................................ 13
Starting and Maintaining a Fire ....................................................13
Blower Operation (optional kit) .................................................... 14
Operating Techniques and Hints................................................... 15
Getting the Most Out of Your Fireplace Insert .............................. 15
Maximizing Your Fireplace Insert’s Overall Efficiency ................... 15
Achieving Clean, Long Burns ....................................................... 15
Maintenance .................................................................................16
Clean Glass .................................................................................. 16
Troubleshooting ...........................................................................17
Do’s and Don’ts ............................................................................ 18
Replacement Parts List ...........................................................19-21
Accessories .................................................................................. 22
Safety / Listing Labels .................................................................. 23
Product Reference Information .................................................... 24
USING THIS MANUAL
Please read and carefully follow all of the instructions found in this
manual. Please pay special attention to the safety instructions provided
in this manual.
PRODUCT IS SUBJECT TO CHANGE WITHOUT NOTICE
2
IMPORTANT SAFETY AND WARNIING
INFORMATION
READ THIS MANUAL IN ITS ENTIRETY AND UNDERSTAND THESE RULES TO FOLLOW FOR SAFETY.
1. When this room heater is not properly installed, a house
fire may result. To reduce the risk of fire, follow the installation instructions. Contact local building or fire officials
about restrictions and installation inspection requirements
in your area.
2. Wear gloves during installation to avoid injury from sharp
edges on the insert and/or its parts.
3. This unit is designed and engineered to burn only dry, wellseasoned wood. Burning wet wood will greatly reduce your
inserts efficiency, produce excessive amounts of smoke
and can cause dangerous chimney fires due to creosote
build-up.
4. Before opening the door, the draft control must be fully open
to avoid possible combustion flash (ignition of hot volatile
gases as the door is opened).
5. Never use gasoline, gasoline-type lantern fuel, kerosene,
charcoal lighter fluid, or similar liquids to start or ’freshenup’
a fire in this heater. Keep all such liquids well away from
the heater while it is in use. DO NOT USE CHEMICALS OR
FLUIDS TO START THE FIRE.
6. While burning, fuel utilizes oxygen from the air in the room.
Be sure to allow an adequate amount of fresh air into the
room where the insert is burning.
7. The outside surface of the insert will be hot while burning
properly and can set items like clothing and curtains on fire.
Keep furnishings and other combustible materials away
from the insert. Using the heat from the insert to dry wet
clothing can be hazardous if clothes are placed too near
the surface of the insert.
8. HOT WHILE IN OPERATION. KEEP CHILDREN, CLOTHING
FURNISHINGS AND COMBUSTIBLE MATERIAL A CONSIDERABLE DISTANCE AWAY. CONTACT MAY CAUSE SKIN BURNS.
Do not allow children to play near the insert without close
supervision. Do not touch the insert while it is burning.
Use extreme caution while the unit is in use. Surface temperatures become dangerously hot and can cause serious
burns.
9. Do not allow anyone to operate the insert who is not familiar
with the operating instructions.
10. Attempts to achieve heat output rates that exceed insert
design specifications can result in permanent damage to
the insert. Never leave your insert unattended on high burn
rates. This may cause overfiring. Overfiring the insert may
cause a house fire. If the insert glows, you are overfiring.
11. Keep a water hose or hand-operated fire extinguisher close
for safety.
12. Smoke Detectors - Since there are always several potential sources of fire in any home, we recommend installing
smoke detectors. If possible, install the smoke detector in
a hallway adjacent to the room (to reduce the possibility
of occasional false activation from the heat produced by
the insert). If your local code requires a smoke detector
be installed within the same room, you must follow the
requirements of your local code. Check with your local
building department for requirements in your area.
13. Inspect your chimney at least once a month during the burning season to check for soot and creosote accumulations.
Any accumulations over 1/8” thick should be removed by
a professional chimney sweep. Do not attempt to burn out
heavy creosote accumulations with a hot fire. If large accumulations are occurring, review your burning procedures.
14. If a creosote fire should develop, the fire department should
be called immediately and then attempts should be made
to control the fire until assistance arrives. If a “runaway”
fire should develop causing over-heating of the insert, the
door and draft regulators should be closed immediately.
The fire should die down once deprived of oxygen. After a
severe chimney fire, the complete chimney system should
be checked before further use.
15. Do Not Use Grate Or Elevate Fire - Build Wood Fire Directly
On Hearth (firebrick). Do not use andirons or other methods
of supporting the fuel.
16. Please read this entire manual before you install and use
your new room heater. Failure to follow instructions may
result in property damage, bodily injury, or even death.
17. Check all local building and safety codes before installation.
The installation instructions and appropriate code requirements must be followed exactly and without compromise.
In the absence of local codes the following standards and
codes must be followed.
18. In the U.S.A, install in accordance with the National Fire
Protection Association’s Code, NFPA 211, Standards for
Chimneys, Fireplaces, Vents and Solid-Fuel-Burning Appliances, or similar regulations, may apply to the installation
of a Solid-Fuel-Burning appliance in your area. In Canada,
the guideline is established by the CSA Standard, CAN/
CSA-B365-M93, Installation Code for Solid-Fuel-Burning
Appliances and Equipment.
19.
DO NOT CONNECT TO OR USE IN CONJUNCTION WITH ANY
AIR DISTRIBUTION DUCTWORK UNLESS SPECIFICALLY
APPROVED FOR SUCH INSTALLATIONS.
20. WARNING: BURNING IMPROPER FUEL (I.E. CHARCOAL)
CAN RESULT IN CARBON MONOXIDE POISONING, WHICH
MAY LEAD TO DEATH!
21. Carbon Monoxide Poisoning – early signs of carbon monoxide poisoning resemble the flu with headaches, dizziness,
or nausea. If you have these signs, get fresh air at once!
Have the heater inspected by a qualified service technician.
Some people are more affected by carbon monoxide than
others. These include pregnant women, people with heart
or lung disease or anemia, those under the influence of
alcohol, and those at high altitudes.
22. Failure to use manufacturer provided parts, variations in
techniques and construction materials or practices other than
those described in this manual may create a fire hazard and
void the limited warranty.
23. Do not make any make-shift compromises during installation. Any modification or alteration may result in damage
to the appliance or dwelling and will void the warranty,
certification and listings of this unit.
24. These appliances are designed as supplemental heaters.
Therefore, it is advisable to have an alternate heat source
when installed in a dwelling.
25. Do Not Overfire – If Heater or Chimney Connector Glows,
You Are Overfiring.
26. DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING
ANOTHER APPLIANCE.
27. DO NOT BURN GARBAGE OR FLAMMABLE FLUIDS SUCH
AS GASOLINE, NAPHTHA OR ENGINE OIL.
3
TESTING INFORMATION
Less than
10' (3 m)
10'
(3 m)
3' (914 mm)
Min.
2’ (610 mm) Min.
(914 mm)
Min.
3'
This manual describes the installation and operation of these non-catalytic
wood heaters. These heaters meet the U.S. Environmental Protection
Agency’s emissions limits for wood heaters sold on or after July 1, 1990.
This heater has been developed, tested and constructed in accordance
with the requirements of UL 1482, ULC S628 and HUD standards and
is listed by OMNI Test Laboratories, Portland, OR. It has been approved
for residential and alcove installations.
DRAFT REQUIREMENTS
Your wood fireplace insert is dependent upon a properly functioning
chimney for optimum performance. It is a high efficiency appliance that
loses much less heat up the chimney than older appliances and fireplaces.
For this reason it is important to match the fireplace insert to the chimney.
The chimney has two functions:
1. It draws combustion air into the appliance (without air, no fuel will
burn) and
2. It exhausts combustion by-products. Your new appliance is what is
known as a “natural draft” appliance.
The appliance depends solely on the natural draft of the chimney system
to draw combustion air into the unit. Draft is the force that moves air
from the appliance up into the chimney. The amount of draft in your
chimney depends on the length of the chimney, local geography, nearby
obstructions and other factors. Too much draft may cause excessive
temperatures in the appliance (overfiring). Slow or inadequate draft
equals poor combustion and possible smoking problems. The following
are some conditions that may contribute to poor chimney draft:
1. A chimney too large for your appliance.
2. A chimney with not enough height to produce adequate draft.
3. A chimney with excessive height (this may allow exhaust to cool too
much before exiting, which will stall the rate the exhaust exits).
4. Offsets in the venting system are too restrictive (see Chimney Guide-
lines).
performance problems as well as be a safety hazard. A draft test should
read greater than .04’ W.C. (inches water column) and less than .08”
W.C. As per NFPA-211 standard (see paragraph below), the installer
must take into account all variables within the installation and install the
appliance in such a manner that satisfies the draft requirements of the
appliance. See Chimney Guidelines below to assist you in selecting the
proper venting system for your installation.
American National Standards Institute ANSI/NFPA 211, Standard for
Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances
- See Draft Section: A chimney or vent shall be so designed and con-
structed to develop a flow sufficient to completely remove all flue and
vent gases to the outside atmosphere. The venting system shall satisfy
the draft requirements of the connected appliance in accordance with the
manufacturer’s instructions.
Chimney Guidelines:
• This appliance requires approximately 12 feet minimum of “effective
draw” provided by the venting system. As a rule of thumb, every 90
degree total direction change in the venting will result in a loss of
approximately 5 feet of “effective draw.” Example: If two 45 degree
offsets are used, subtract 5 feet from the actual vertical vent height
to determine your “effective draw.” In this case if you had 14 feet of
vertical vent, the effective draw would only be approximately 9 feet
(14 ft. - 5 ft. = 9 ft.), therefore it may be necessary to add additional
height to the venting system.
• In well insulated and weather tight homes, it may be difficult to establish
a good draft up your chimney. The poor draft is caused by a shortage
of air in the house (see Negative Pressure Warning on Page 5).
Chimney Height Requirements
The chimney must extend 3’ (.92m) above the level of roof penetration
and a minimum of 2’ (.61m) higher than any roof surface within 10’
(3m) (see below). Check with your local building officials for additional
requirements for your area.
Inadequate draft will cause the appliance to leak smoke into the room
through the fireplace insert and the chimney connector joints.
Excessive draft may cause an uncontrollable burn or a glowing red
fireplace insert or chimney part.
Overfiring Damage - If the heater or chimney connector glows, you are
overfiring. Other symptoms may include: Cracking, warping or burning
out of components, plated accessories may turn color, stove glass may
develop a haze, which will not come off with cleaning.
Overfiring of a stove or fireplace insert is a condition where excessive
temperatures are reached, beyond the design capabilities of the appliance. The damage that occurs from overfiring is not covered under the
manufacturer’s limited warranty.
Also see Troubleshooting on Page 17.
SELECTING THE PROPER VENTING SYSTEM
The appliance is merely one component of a larger system. The other
equally important component is the venting system. This is necessary for
achieving the required flow of combustion air to the fire chamber and for
safely removing unwanted combustion by-products from the appliance.
If the venting system’s design does not promote these ends, the system
may not function properly. Poorly functioning venting systems may create
4
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 1 - Chimney Height Requirements
To pass inspection in nearly any jurisdiction, the chimney must meet both
safety and exhaust flow requirements. The (3’ by) 2’ by 10’ rule applies
to both masonry and factory-built chimneys.
* Ref. USA - National Standard, NFPA 211-latest edition and Canada
National Standard CSA B365-01-latest edition. Vents installed with a
listed cap shall terminate in accordance with the terms of the cap’s
listings.
NEGATIVE PRESSURE WARNING
FUEL
This appliance is not designed to be operated in a negative pressure.
In very airtight homes with large kitchen exhaust fans, furnace cold air
returns, fresh air exchange systems and any other air system in close
proximity to the heating appliance may create a negative pressure in the
same room as the heating appliance. This can create dangerous back
drafting of the fireplace insert and chimney joints, drawing combustion
by-products into the home. Be sure your home has adequate makeup air
to eliminate negative pressures caused by the above-mentioned sources.
Lennox Hearth Products accepts no liability for damages resulting from
negative pressures described above.
Ventilation Requirements - Provide adequate air for combustion. The
fresh air requirements of this appliance must be met within the space
where it will be installed. Ventilation is essential when using a Solid-FuelBurning heater. In well insulated and weather tight homes, it may be
difficult to establish a good draft up the chimney (caused by a shortage
of air in the home). The lack of air is caused by many common household
appliances which exhaust air from the home (such as a furnace, heat
pump, air conditioner, clothes dryer, exhaust fans, fireplaces, and other
fuel burning appliances). Also, the combustion process of this heater
uses oxygen from inside the dwelling. If the available fresh air delivery
in the dwelling is insufficient to support the demands of these appliances,
problems can result (i.e. excessive negative pressure can develop in
the dwelling which will affect the rate at which this appliance can draft
thus resulting in performance problems. To correct this problem it may
help to open a window (preferably on the windward side of the house).
CREOSOTE, FORMATION AND NEED FOR REMOVAL
When wood is burned slowly, it produces tar and other organic vapors,
which combine with expelled moisture to form creosote. The creosote
vapors condense in the relatively cool chimney flue 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 and
chimney connector should be inspected at least once monthly during
the heating season to determine if a creosote build-up has occurred. If
creosote has accumulated (1/8” [3 mm] or more), it should be removed
to reduce the risk of a chimney fire.
Establish a routine for the fuel, wood burner and firing technique.
Check daily for creosote build-up until experience shows how often
you need to clean to be safe. Be aware that the hotter the fire the
less creosote is deposited, and weekly cleaning may be necessary
in mild weather even though monthly cleaning may be enough in
the coldest months. Contact your local municipal or provincial fire
authority for information on how to handle a chimney fire. Have a
clearly understood plan to handle a chimney fire.
This unit is designed and engineered to burn, dry, well-seasoned wood only.
Dry, seasoned wood is that which has been cut, split and allowed to dry
under a covered area where air is free to flow and circulate under and
around the wood (not under a tarp or plastic). Make sure wood is not
stacked directly on the ground, it may absorb moisture from the ground.
It should be allowed to dry in these conditions for a minimum of six
months, preferably one year or more. IT MUST BE UNDERSTOOD THAT
WOOD CANNOT BE LEFT IN ANY KIND OF WET OR DAMP AREA OR IT
WILL NEVER BECOME COMPLETELY SEASONED.
Your fireplace insert will not operate at the level that it is meant to unless
you use seasoned, dry wood. Do not burn driftwood or wood that has
been in salt water, doing so will void your warranty. Do not burn treated
wood, coal, garbage, cardboard, solvents, or colored paper. Burning
treated wood, garbage, solvents, or colored paper may result in the
release of toxic fumes. This type of burning will also void your warranty.
Do Not store fuel within space heater installation clearances or within
the space required for refueling and ash removal.
PAINT CURING
If your fireplace insert has plated accessories, be sure to clean it
with a household type glass cleaner and a very soft cloth to remove
any fingerprints and residues prior to the first fire and before any fire
if the gold has been handled or soiled. Do not close the door tightly
during the “Burn-In Period.” Also, open the door frequently (every
5-10 minutes) to keep the gasket from adhering to the curing paint.
Ventilate the house well during these first firings as the paint gives off
carbon dioxide and unpleasant odors. It is recommended that persons
sensitive to an imbalance in the indoor air quality avoid the fireplace insert
during the curing process.
Your new appliance is painted with a high temperature paint that cures
during the first few firings. We recommend that you put your fireplace
insert through a regimen of three burns. The first two should last for 20
minutes each at 250 degrees (the fireplace insert should be allowed to
cool completely between each burn). The third should be a burn of at least
450 degrees F. for 45-60 minutes. The paint will become soft, gummy
and emit non-toxic smoke during these burns. After the fireplace insert
cools down for the third time, the paint will harden. DO NOT BUILD A
LARGE ROARING FIRE UNTIL THIS CURING EFFECT IS COMPLETE OR
YOU MAY DAMAGE THE FINISH OF YOUR STOVE OR INSERT. Spray can
touch-ups should be done only with a high temperature stove paint (cat.
no. H8159), available from all Lennox Hearth Products dealers.
BURN-IN PERIOD
DISPOSAL OF ASHES
Ashes should be scooped out of a cool stove or insert with a small metal
shovel. Ashes should be placed in a metal container with a tight fitting
lid and moved outdoors immediately. Other waste shall not be placed
in this container. 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 in
soil or otherwise locally dispersed, they should be retained in the closed
container until all the cinders have thoroughly cooled. Ashes can ignite
up to 72 hours after removal from the stove or insert.
Please be patient with the heat output of your fireplace insert for the first
few weeks. The steel will go through a curing process that eliminates
moisture, which is deep in the steel and firebrick. This moisture will reduce
initial heat output of your fireplace insert and may make it difficult to
start. After you have broken in the paint on the fireplace insert it will be
necessary to build hot fires to thoroughly remove the moisture from the
appliance. Running the fireplace insert with the draft fully open for 1 to
1-1/2 hours after starting and adding gener ous amounts of fuel during
the first week or two should complete the curing process. We recommend the use of a thermometer attached to the fireplace insert top or
chimney. Temperatures on the connector pipe should run in the 250-600
degree range. (DO NOT OVERFIRE THE STOVE OR INSERT DURING THIS
PROCESS. IF THE STOVE OR CHIMNEY BECOMES RED, REDUCE THE
AMOUNT OF AIR ENTERING THE STOVE OR INSERT IMMEDIATELY).
5
BRICK INSTALLATION
Firebrick
Diagram
17D
18B
Brick Installation
CAUTION: Wear gloves during brick installation in case of sharp
edges behind the fireplace insert.
Note: Installation of the baffle boards and baffle blanket is easier when
you can still access the flue outlet, (before connecting the flue vent).
Be sure the baffle blanket is placed flat on the baffle boards so as
not to block exhaust flow to the flue. Use a ruler or a piece of kindling
to reach over the baffle blanket to be sure it is completely flat on top of
the baffle boards.
1. Install bricks #1-18 in the numbered sequence shown in Figure 2.
2. Next, you will install the rear baffle boards which are the smaller
two of the four baffle boards. The boards will be installed with the
3-9/16” dimension from the front to the rear of the firebox. These
boards will be placed on the top side of the rear baffle just to the
rear of the middle secondary tube, you will push the baffle boards
towards the rear of the firebox until they fall in place at the rear side
of the middle secondary tube. You will place one board to the far
left side of the firebox and one board to far right side of the firebox.
Confirm that both boards are laying flat on the rear baffle and that
they are not overlapping each other.
3. Next, you will install the baffle blanket. It will be installed with the
11” dimension from the front to rear of the firebox. Install by lifting
it into place between the front and rear baffle. Place the blanket over
the rear baffle and rear baffle boards that you have just installed. Next
you will place the baffle blanket that is protruding beyond the front
side rear baffle on the top side of the front baffle.
4. The final step of the baffle board & baffle blanket installation will be
installing the front baffle boards. The front baffle boards will be the
two remaining baffle boards which are the larger two baffle boards
of the four baffle board kit. They will be installed with the 7-3/8”
dimension from the front to rear of the firebox. Start by setting the
back side of the board on the rear baffle making sure that it is placed
far enough back to lift up and onto the front baffle. Next you will
place the front edge of the front baffle boards on the top side of the
front baffle and slide them towards the firebox front until it stops
against the front baffle edge. You will do this with each front baffle
board with one to the right side of the firebox and one to the left
side of the firebox. Confirm that the baffle blanket is directly on top
of the baffle boards and that it does not protrude beyond the front
baffle or front baffle boards as shown in Figure 4.
WARNING: IF THE BRICKS ARE NOT INSTALLED EXACTLY AS
SHOWN, THEY COULD FALL OUT OF PLACE DURING REFUELING
OR BURNING OF THE INSERT, CAUSING SERIOUS INJURY.
Brick Sizes
(see Figures on this page)
A = 4-1/4 x 9” E = 1-1/2 x 8-7/8”
B = 2-1/4 x 8-7/8” F = Full Brick”
D = 2-1/4 x 9” G = 1-1/2 x 9
9
F
13F
10
16E
F
14F
4
F
5
F
6
D
7
1
F
F
2
F
3
D
11F
15G
8
A
12A
Front View - See the following for brick sizes
*Fits against the back of the firebox.
Note: These bricks may be slightly smaller to adjust for steel and
firebrick tolerances beyond our control. Be sure to measure and
mark bricks with their numbers when removing.
Figure 2
18-1/4”
Baffle
Insulation
Parts
1” Thickness
Baffle Blanket
9”
1/2” Thickness
Front Baffle Boards
(2 included)
9”
1/2” Thickness
Rear Baffle Boards
(2 included)
11”
7-3/8”
3-9/16”
Figure 3
Baffle Blanket
Side Cut-A-Way
Rear Baffle
Board
Firebox
Brick
View of Firebox
Front Baffle
Board
Figure 4
6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
REQUIRED CLEARANCES
Maximum Mantel Depth = 9” (229mm)
WARNING: BE ABSOLUTELY SURE THE DISTANCE BETWEEN THE
HEATER AND THE SURFACE OF ANY COMBUSTIBLE CONSTRUCTION IS NOT LESS THAN SHOWN ON THIS PAGE.
Model *A *B *C *D E(1)
C/A160
SWI160
C/A160 &
SWI160 with
mantel and/or
side shields
Model F (1) G H J(2) M
C/A160
SWI160
C/A160 & SWI160
with mantel and/or
side shields
* Reduced clearances may be available for A, B, C and D dimensions
by using an optional mantel and/or side shields. Consult with your
Lennox Hearth Products dealer for the dimensions of the shields.
Clearances can also be reduced for A, B, C and D dimensions per
NFPA 211 - latest edition, Standard for Chimneys, Fireplaces, Vents
and Solid Fuel-Burning Appliances (in Canada CSA B365 - latest
edition). See section on “Reduction of Appliance Clearance with
Specified Forms of Protection.”
** Side view of optional mantel deflector shown.
USA-24”
CAN-
660mm
16”
406mm
450mm
450mm
18”
18”
USA -15”
CAN-
450mm
10”
254mm
12-1/2”
318mm
12-1/2”
318mm
20”
508mm
20”
508mm8”200mm
19-1/4”
489mm
19-1/4”
489mm
12”
305mm
4-3/8”
111mm
4-3/8”
111mm
USA-4-1/2”
CAN-
200mm
USA-4-1/2”
CAN-
200mm
43”
1092mm
35”
889mm
SIDE WALL
Figure 5
M
COMBUSTIBLE MANTEL
Top Facing / Trim
B
D
Side Facing Material
C
E (USA)
F
A
Insert
Hearth Protection
Mantel
Trim
**
6-1/2”
165mm
J
E (Canada)
G
6” Ø
Flue Collar
H
(1)Hearth extension reductions: 2” (51mm) reduction for 2” (51mm)
raised hearth. (USA) 16” minimum hearth extension on all stoves
and inserts as measured from the door opening of the unit. (Canada)
18”(450mm) minimum hearth extension on all stoves and inserts
as measured from the door opening of the unit. Minimum distance
of floor protection to the side = 8” (200mm). This is measured from
the sides of the door opening in the USA and from the sides of the
insert in Canada.
(2) J = Maximum lintel depth without flue offset or smoke deflector.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Hearth Protection
Figure 6
Notes:
• Facing material that projects more than 3/4” (19mm) from the wall
is considered a mantel or side wall.
C/A160
SWI160
Depth Min. 12-3/4” (324mm) 12-3/4” (324mm)
Height Min. 21” (533mm) 19-1/2” (495mm)
Width Min. 36” (914mm) 25-1/2” (648mm)
Lintel Max. Depth
Without use of adjustable offset box or smoke deflector
u
u
ZC Fireplace
UL 127
4-3/4” (121mm) 4-3/4” (121mm)
Masonry Fireplace
UBC Chapter 37
Table 1 - Fireplace Sizing
7
HEARTH PROTECTION
The hearth and/or floor protection must be a thermally rated non-combustible hearth/floor protector meeting or exceeding a thermal rating of
k=.84 or equivalent with a listed thickness of 3/8" (9.5mm) minimum in
USA (3/4" - 19mm minimum in Canada). The covering must extend 18”
(450mm) in front of the heater and 8” (200mm) to either side (measured
from door opening in the USA and measured from the side of the unit
in Canada).
Using Alternate Material As Floor / Hearth Protection
The hearth extension or alternate material used as a floor/hearth protector must be constructed of a durable noncombustible material having an
equal or better thermal conductivity value (lower k value) of k =.84 BTU/IN
FT2 HR °F or a thermal resistance that equals or exceeds r = 1.19 HR °F
FT2 IN/BTU with a minimum thickness of 3/8” in USA or 3/4” in Canada.
With these values, determine the minimum thickness of the alternate
material required using the formula(s) and shown in Table 2 for USA
and Table 3 for Canada.
Note: Any noncombustible material having a minimum thickness of
3/8”(9.5 mm) for USA or 3/4” (19mm) in Canada whose k value is less
than .84 or whose r value is more than 1.19 is acceptable. If the alternate
material used has a higher k value or lower r value will require a greater
thickness of the material used. In some cases, if the k value is less or
the r value higher, a thinner material may be used.
Methods of determining floor protection equivalents:
To determine the thickness required for the alternate material when
either the "k" value or "r" value is known, use either the k formula or r
formula.
Example: If Micore 160 Mineral Fiber Board is to be used for the floor
protection, how thick must this material be?
k
= k value per inch of alternate material
M
rM = r value per inch of alternate material
TM = minimum thickness required for alternate material
T
= standard thickness of the alternate material
S
k
= k value per inch of listed material
L
rL = r value per inch of listed material
= minimum thickness of listed material
T
L
Note: An asterisk "*" indicates, it is a value taken from Tables 2 and 3.
Using the k formula:
FOLLOWING EXAMPLES ARE CALCULATED FOR USA REQUIRMENTS
Using the k formula:
Minimum k-value (per Inch) of Specified min.
thickness of = alternate material (k
alternate k-value (per inch) of listed
material (T
(inches) = kM x TL
T
M
) of listed material (kL) material (TL)
M
) x thickness
M
*.84
(inches) = *.35 x .375"
T
M
*.84
.156 (inches)= .417 x .375"
Answer - The minimum required thickness of the Micore 160 is .156" therefore
round up to nearest standard thickness available which is 3/8” (.375”)
8
Using the r formula:
Minimum r-value (per Inch) Specified min.
thickness of = of listed material x thickness
alternate r-value (per inch) of listed
material of alternate material material
(inches) =
T
M
r
(inches) = *1.19 x .375"
T
M
r
L x T
M
L
*2.86
.312 (inches)= .416 x .375"
Answer - The minimum required thickness of the Micore 160 is .156"
therefore round up to near est standard thickness available which is
3/8” (.375”)
Listed Material
k (per inch) r (per inch) Listed Min. Thickness
Listed Material .84
** Approved Alternate Materials for Floor/Hearth Protection
Alternative Materials Thermal Values Minimum Thickness
Kaowool M Board .47 2.13 .42" (1/2")
Micore 160™
U.S. Gypsum
Micore 300™
U.S. Gypsum
Durock™ Cement Board
U.S. Gypsum
Hardibacker™ 1.95 .51 1.74" (1-3/4")
Hardibacker 500™ 2.30 .43 2.05" (2-1/8")
Cultured Stone Hearthstone™
Wonderboard 3.23 .31 2.88" (3")
Super Firetemp M
Johns-Manville
Super Firetemp L
Johns-Manville
Face brick 9.00 .111 8.04" (8-1/8")
Common brick 5.00 .20 4.46” (4-1/2")
Cement mortar 5.00 .20 4.46” (4-1/2")
Ceramic tile 12.5 .08 11.16" (11-1/4")
Marble ~11 ~.09 9.82" (9-7/8")
K
L
k (per inch)
K
M
.35 2.86 .31" (3/8")
.46 2.17 .41" (1/2")
1.92 .52 1.71" (1-3/4")
2.82 .35 2.52" (2-5/8")
.61 1.64 .54" (5/8")
.54 1.85 .48" (1/2")
1.19
r
L
r (per inch)
r
M
3/8" (.375")
T
L
(rounded to nearest 1/8 inch)
Min. Thickness
T
M
Table 2 - USA REQUIREMENTS
** If the hearth extension material(s) that is intended to be used is NOT listed
on Table 1, the material can still be used if the material(s) is noncombustible.
However, the manufacturer of the material must provide either the listed k-value
per inch or r-value per inch with listed thickness so that the minimum thickness
required for the hearth can be calculated (per instructions here or as specified
in the NFI Certification Manuals).
Note: Also see NFI (National Fireplace Institute) Certification Manuals showing other acceptable calculation methods and acceptable alternate materials
which can be used.
SEE TABLE 3 ON FOLLOWING PAGE FOR CANADA REQUIREMENTS
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