CFM Corporation Indoor Fireplace WMC36 WMC42 User Manual

WMC Series  
Woodburning Fireplace  
Homeowner's Installation  
and Operating Manual  
For Models:  
WMC36  
WMC42  
For use in U.S./Canada  
Underwriter's Laboratories  
Report No. MH6018  
DO NOT DISCARD THIS MANUAL: Retain for future use.  
20000583 7/06 Rev. 20  
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WMC Series Woodburning Fireplace  
WMC36 Series Woodburning Fireplace — Circulating Model  
22" (559mm)  
Rough  
Opening  
Depth  
47" (1194mm)  
11" Dia.  
(279mm)  
¹⁄₂" (13mm)  
8¹"  
(210mm)  
22¹⁄₂"  
(572mm)  
8" Dia.  
(203mm)  
22"  
(559mm)  
⁵⁄₈"  
(16mm)  
Recessed  
Nailing Flange  
" (857mm)  
Rough Opening Width 41"  
" (16mm)  
33³⁄₄  
⁵⁄₈  
(1041mm)  
Rough  
Opening  
Height  
" (1683mm)  
¹
66  
¹⁄₂"  
7¹"  
(191mm)  
36⁵⁄₈"  
(930mm)  
40³⁄₄"  
(1035mm)  
Gas Line  
Access  
Outside Air  
36"  
(914mm)  
7¹⁄₂"  
(191mm)  
21"  
Gas Line Access  
14⁵⁄₈"  
(372mm)  
9¹⁄₂"  
(241mm)  
7³⁄₄"  
(197mm)  
35¹" (902mm)  
3"  
(76mm)  
8"  
(203mm)  
1³⁄₄"  
(45mm)  
40" (1016mm)  
15³⁄₈"  
(391mm)  
Electrical  
Access  
FP590A  
Fig. 1 WMC36 Series specifications and framing.  
WMC42 Series Woodburning Fireplace — Circulating Model  
26¹"  
(667mm)  
Rough  
Opening  
Depth  
50" (1270mm)  
¹⁄₂" (13mm)  
13³⁄₈" Dia.  
(340mm)  
8" Dia.  
(203mm)  
11" Dia.  
(279mm)  
8¹"  
(210mm)  
22¹⁄₂"  
(572mm)  
22"  
(559mm)  
⁵⁄₈"  
(16mm)  
Recessed  
Nailing Flange  
" (914mm)  
" (16mm)  
Rough Opening Width 47"  
(1194mm)  
36  
⁵⁄₈  
Rough  
Opening  
Height  
" (1791mm)  
¹⁄₂"  
70¹⁄₂  
7¹"  
(191mm)  
40³⁄₄"  
(1035mm)  
36⁵⁄₈"  
(930mm)  
21"  
(533mm)  
Gas Line  
Access  
7¹⁄₂"  
(191mm)  
Outside Air  
42"  
(1067mm)  
Gas Line Access  
14⁵⁄₈"  
(372mm)  
9¹⁄₂"  
(241mm)  
7³⁄₄"  
(197mm)  
8"  
(203mm)  
38" (965mm)  
46" (1168mm)  
3"  
(76mm)  
1³⁄₄"  
(45mm)  
15³⁄₈"  
(391mm)  
Electrical  
Access  
FP592A  
Fig. 2 WMC42 Series specifications and framing.  
20000583  
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WMC Series Woodburning Fireplace  
Front Width Back Width  
Depth  
C
B
A
B
WMC36  
WMC42  
33¹⁄₂"  
(851 mm)  
18¹⁄₄"  
(464 mm)  
20¹⁄₄"  
(514 mm)  
C
39⁵⁄₈"  
18¹⁄₄"  
15¹⁄₄"  
(1007 mm)  
(464 mm)  
(387 mm)  
A
FP1531  
Fig. 2a Hearth dimensions.  
Chase Installation  
Insulation methods shown are optional  
for cold climate, not a requirement for  
unit operation.  
Termination Cap  
Storm Collar  
Pan Flashing  
Batt Insulation  
(cut out around firestop)  
Draftstop  
Firestop  
Ceiling Level  
Top Shield  
Surround  
Outlet Grille  
Standoff  
Nailing Flange  
Damper  
Control  
Gas Line Access  
(both sides)  
Gas Line Knockout  
(both sides)  
Screen  
Grate  
Electrical Access  
Outside Air  
Cover Plate  
Firebox  
Metal Safety Strips  
(1, 2 or 3 pieces)  
Inlet Grille  
FPC554  
Fig. 3 Fireplace and chase parts identification.  
20000583  
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WMC Series Woodburning Fireplace  
Chimney Requirements - Offset Installations  
OFFSET  
CHIMNEY FLUE EXIT  
RISE  
CHIMNEY  
SECTION  
IWF282  
30˚  
RETURN  
ELBOW  
ELBOW  
30˚ Elbow Offsets  
B
G
A
1'  
Offset  
3' 4'  
Rise  
1¹⁄₂'  
G
30˚  
OFFSET  
ELBOW  
0
1
0
2
1
0
2
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
1
0
0
1
0
0
2
0
1
2
0
1
3
0
2
3
1
2
0
1
3
0
2
3
1
2
0
1
3
0
2
3
1
2
0
0
0
0
0
0
0
0
1
0
1
1
0
1
1
0
2
1
0
2
1
0
2
1
3
2
1
3
2
1
3
2
4
3
2
4
3
2
4
3
5
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
3"  
8¹⁄₄"  
11"  
20"  
D
E
6 FT.  
RISE  
11¹⁄₄" 25¹⁄₄"  
13¹⁄₂" 29¹⁄₄"  
16¹⁄₂" 34¹⁄₄"  
20¹⁄₄" 40³⁄₄"  
21³⁄₄" 43¹⁄₂"  
26¹⁄₄" 51¹⁄₄"  
28¹⁄₂" 55¹⁄₄"  
31¹⁄₂" 60¹⁄₄”  
34¹⁄₂" 65¹⁄₂"  
37¹⁄₂" 70³⁄₄"  
41¹⁄₂" 77³⁄₄"  
45" 83³⁄₄"  
SKCS8  
SUPPORT  
30˚  
RETURN  
ELBOW  
C
H
OFFSET  
H
30˚  
OFFSET  
ELBOW  
B
HEARTH  
FLOOR  
47¹⁄₄" 87¹⁄₂"  
51"  
53¹⁄₄"  
Example 1  
Example 2  
Example 3  
94"  
98"  
FPC269  
Notes: G + H cannot exceed 20 feet.  
Air Space Clearances: SK8 (2-wall) = 1¹⁄₂" and "S" Series (3-wall) = 2"  
56¹⁄₄" 103¹⁄₄"  
59¹⁄₄" 108¹⁄₂"  
62¹⁄₄" 113¹⁄₂"  
64¹⁄₂" 117¹⁄₂"  
68¹⁄₄"  
70¹⁄₂"  
74¹⁄₄" 134¹⁄₂"  
78" 140³⁄₄"  
81"  
84" 151¹⁄₄"  
87" 156¹⁄₂"  
89¹⁄₄" 160¹⁄₄"  
93" 166³⁄₄"  
95¹⁄₄" 170³⁄₄"  
99¹⁄₄" 177³⁄₄"  
Illustration Key  
C. The chimney cannot be more than 30˚  
(45˚ in Canada) from the vertical plane in  
any installation*.  
The following safety rules apply to  
offset installations (letters correspond  
with illustration above):  
124"  
128"  
D. The maximum length of the angled run  
of the total chimney system is 20 feet. (G  
plus H cannot exceed 20 feet.)  
A. Height of the chimney is measured  
from the hearth to the chimney exit.  
146"  
WMC36  
90'  
WMC42  
90'  
E. A chimney support (Model SKCS8,  
TCS8A - 8 inch triple wall) is required  
every 6 feet of angled run of chimney.  
Chimney supports are required for every  
30 feet and 60 feet (SK8 pipe) or 20 feet  
and 40 feet (3-wall pipe) of vertical chim-  
ney height above the hearth.  
Maximum:  
Minimum:  
Without Elbows 12' 6"  
With 2 Elbows* 15' 0"  
With 4 Elbows* 21' 0"  
12' 6"  
15' 0"  
21' 0"  
2 101¹⁄₄" 181³⁄₄"  
2 104¹⁄₄" 186¹⁄₄"  
2 107¹⁄₄" 191¹⁄₂"  
B. Do not use more than 4 elbows per  
Determine the offset distance of your  
chimney arrangement from the centerline  
of the fireplace to the centerline of the  
chimney where it is to pass through the  
first ceiling.  
chimney.  
2
3
3
3
110¹⁄₄" 196³⁄₄"  
114" 203¹⁄₄"  
117³⁄₄" 209³⁄₄"  
120" 213¹⁄₂"  
Attach the straps of the return (top)  
elbow to a structural framing member.  
The offset (first) elbow of any pair does  
not have straps.  
3 123³⁄₄"  
220"  
NOTE: This offset distance may not be  
your full offset distance. See Examples 2  
and 3.  
* In Canada, two (2) SK845 are allowed.  
Fig. 4 Chimney system requirements.  
20000583  
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WMC Series Woodburning Fireplace  
Planning Information  
Preplanning an installation is very important to ensure  
safety and to save time and money. An installer must  
predetermine where a fireplace will be set and how the  
chimney system will be run.  
The Ten Foot Rule  
Major U.S. building codes specify a minimum chimney  
height above the roof top. The “Ten Foot Rule” is a fire  
safety rule and not a draft rule. It is recommended that  
you always meet or exceed the “Ten Foot Rule,” espe-  
cially when installing a termination on a high pitch roof.  
(Fig. 6)  
Mounting the Fireplace  
A fireplace may be mounted on the following surfaces:  
1. A flat combustible surface.  
The key points of the "Ten Foot Rule" are:  
2. A raised wooden platform.  
1. If the horizontal distance from the chimney to the peak  
of the roof is 10' (3 m) or less, the top of the chimney  
must be at least 2' (609 mm) above the peak of the  
roof, but never less than 3' (914 mm) in height above  
the highest point where it passes through the roof.  
3. A concrete block or other solid object placed be-  
neath each of the four (4) corners of the fireplace.  
The fireplace must be spaced 1/2" (13 mm) from a  
combustible back wall and 1/2" (13 mm) from a com-  
bustible side wall or support. Refer to Page 14, Figure  
18.  
2. If a horizontal distance from the chimney to the peak  
of the roof is more than 10' (3 m), a chimney height  
reference point is established that is on the surface of  
the roof a distance of 10' (3 m) from the chimney in a  
horizontal plane. The top of the chimney must be at  
least 2' (609 mm) above the reference point, but never  
less than 3' (914 mm) in height above the highest  
point where it passes through the roof.  
Planning the Chimney Run  
Determine how the chimney will be run, length of run  
and chimney components required to complete the  
job. (Fig. 4) Never install a chimney below minimum  
heights.  
0 To 10'  
MODEL SK TOTAL INSTALLED  
L
T
1
1
2 WALL  
CHIMNEY  
LENGTH LENGTH  
TRIPLE  
WALL  
(L )  
(L )  
T
1
2' Min.  
0 To 10'  
3'  
Min.  
L
L
��  
�  
�  
�  
"
81  
SK81  
SK818  
SK83  
SK84  
�  
�  
�  
�  
"
"
"
"
2' Min.  
3'  
"
"
"
818  
83  
Min.  
84  
Reference  
Point  
FP288A  
AC246  
Fig. 5 Installed lengths of chimney sections.  
Fig. 6 Ten Foot Rule illustration.  
In planning a chimney system, it is important to know:  
1. The height of a chimney is measured from the  
hearth to the exit point on the termination.  
2. A chimney cannot be offset more than 30° from a  
vertical plane.  
3. A chimney may run straight up or it may be neces-  
sary to offset it to avoid obstructions.  
4. The maximum length of an angled run (total chim-  
ney system) is 20' (6 m).  
5. No more than 2 offsets (4 total 30˚ elbows in U.S./  
or 2 total 45˚ elbows in Canada) per fireplace may  
be used.  
6. A guy wire stabilizer (not provided) is required for  
chimneys extending more than 6' (1.8 m) above a  
roof line.  
20000583  
6
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WMC Series Woodburning Fireplace  
Chimney Supports  
Installation  
The chimney system is supported by the fireplace for  
vertical chimney heights less than 30' (9 m) above the  
hearth. Chimney supports are required if the vertical  
height exceeds 30' (9 m) with SK8 chimneys or 20' (6  
m) with 3-wall chimneys. Locate chimney supports  
at ceiling holes or other structural framing at 30' (9 m)  
(SK8) or 20' (6 m) (3-wall) heights. Spacing between  
chimney supports must not exceed 30' (9 m) (SK8)  
or 20' (6 m) (3-wall). Use Chimney Support Model  
SKCS8 (SK8) and TCS8A (3-wall). (NOTE: The  
chimney support cannot be mounted directly to  
the fireplace.) Support provided by elbow straps ful-  
fills the support requirement only if they are spaced as  
previously described. (A chimney support is 2¹⁄₂" long  
when installed.)  
Insulating Fireplace Enclosure  
for Cold Climates  
If you live in a cold climate, it is not required but  
highly recommended that you insulate fireplace  
enclosure to eliminate cold air penetration as much  
as possible.  
Insulate base of fireplace with a noncombustible  
insulation rated for a minimum of 300°F. Insulating  
is very important for outside wall installations over  
a concrete slab. If fireplace is installed on a platform,  
insulation should be placed on top of the platform  
before fireplace is set. (Fig. 8)  
When a fireplace is installed in a chase or on a  
outside wall, enclosure should be treated like any  
outside wall in a home. Insulation should be installed  
on the inside wall as well as the outside wall(s). In a  
chase, it is also a good idea to install a firestop at the  
first ceiling level above the fireplace and enclose the  
chase with sheeting material. Insulation may then be  
installed above sheeting material to assure the space  
around the fireplace is totally protected. (Fig. 3)  
Angled chimney runs require a support every 6' (1.8m)  
in addition to the elbow straps. Chimney supports are  
used for this function. (Fig. 7)  
Chase Installation  
A chase is a vertical boxlike structure which encloses  
the fireplace and/or chimney. Chases are typically built  
on the outside of the house with fireplace opening cut  
into the outer wall of a room. (Page 5, Fig. 3)  
When installing the chimney, DO NOT caulk between  
outer pipe and firestop. It is vital that some air be al-  
lowed to flow through this very thin gap.  
If you need help in determining fireplace location or  
how the chimney system should be run, contact your  
CFM Corporation dealer for assistance.  
CAUTION: WHEN INSTALLING A FIREPLACE IN  
AN INSULATED ENCLOSURE, BE SURE ALL RE-  
QUIRED AIR SPACES ARE MAINTAINED. (Page 13,  
Fig. 18)  
Cover Plate  
Top Shield  
Chimney Sup-  
port Strap  
Hard, Flat  
Surface  
Chimney  
Support  
FP284  
Fig. 7 Chimney support installation.  
Insulation  
Platform  
FPC555  
Fig. 8 Insulating between platform and fireplace.  
20000583  
7
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WMC Series Woodburning Fireplace  
Framing  
Ground  
Framing can be constructed before or after the fire-  
place is set in place, however, most installers build the  
frame before setting the fireplace.  
Ground Screw  
Black  
Variable Speed Con-  
trol (optional)  
Wall  
Frame fireplace with 2 x 4 lumber or heavier materials.  
Refer to framing dimensions in Figures 1 and 2 for  
basic fireplace specifications.  
Junction Box  
(not supplied)  
NOTE: Framing should be positioned to accommo-  
date wall covering and fireplace facing material.  
Wire Nuts  
(supplied)  
Install Electrical Connection  
CAUTION: ALL WIRING SHALL BE DONE BY A  
QUALIFIED ELECTRICIAN AND SHALL BE IN  
COMPLIANCE WITH ALL LOCAL, CITY AND STATE  
BUILDING CODES.  
Receptacle  
Ground  
Stud  
IMPORTANT: To prevent electrical shock, the house  
power must be disabled. This can be accomplished by  
positioning the circuit breaker to off.  
Fireplace  
Junction Box  
FP1212  
Fig. 9 SCVS wiring diagram.  
The fan kit assembly and model EB1 junction box are  
factory installed.  
Electrical Box  
(not supplied)  
NOTE: Check local building codes to determine if a  
junction box is required at the romex pigtail/house wire  
connection.  
Speed Con-  
trol  
Cover  
Plate  
Install Variable Speed Control  
Oval  
The SCVS Variable Speed Control is tested and safe  
when installed in accordance with these instructions.  
Read all instructions before beginning installation. Fol-  
low instructions carefully.  
Head  
Screw  
The SCVS speed control may be used as an alternate  
wall switch in lieu of the single pole (Listed 1.5 Amp  
120V) switch described in the fan or fireplace installa-  
tion instructions.  
Flat  
Head  
Screw  
Plastic  
Knob  
Installation Instructions  
Wire Nut  
FP1213  
For mounting the speed control, a 2" deep standard  
electrical box should be used. Using wire nuts sup-  
plied with the speed control, connect control in series  
with fan motors and line voltage. Refer to Figure 9 for  
wiring diagram.  
Fig. 10 Speed control mounting.  
Mount speed control in electrical box and attach wall  
plate with screws provided. Push on knob so that indi-  
cator is in OFF position. (Fig. 10)  
Operation  
Turn control knob counterclockwise until a click is  
heard for OFF position. To operate fans, turn knob  
clockwise and adjust fan speed as desired.  
20000583  
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WMC Series Woodburning Fireplace  
Chimney Centerline  
Chimney Set-up  
Since you have already preplanned the chimney run,  
you should know exactly how the installation is to be  
accomplished - how much pipe is required, the number  
of elbows, if any, and type of termination to be used.  
Actual Centerpoint  
9¹⁄₄"  
(235mm)  
CAUTION: REPORT TO YOUR DEALER ANY PARTS  
DAMAGED IN SHIPMENT, SPECIFICALLY CHECK  
THE END CONNECTION OF CHIMNEY SECTIONS  
AND ELBOWS.  
NOTE: The WMC36 may use CFM Corporation model  
SK8, or Model S (three wall) chimney systems. How-  
ever, a TWABR adapter collar is required when using  
the Model S (triple wall) chimney system on this unit.  
The WMC42 is designed to use only the "S" triple wall  
chimney system. Either chimney system may be used,  
but must not be mixed.  
Plumb Line  
Plumb Bob  
Imaginary Cen-  
terpoint  
NOTE: To use the TWABR adapter on the WMC36,  
remove and discard the cover plate on the top shield.  
(Fig. 8)  
Straight-Up Chimney Installation  
To mark the centerline of the flue, put the fireplace in  
final position and measure out from the wall: 9¹⁄₄" (235  
mm). Mark a spot on the ceiling directly above the  
fireplace. Draw a line parallel to the back wall through  
this mark. (Fig. 11)  
Using a plumb bob positioned directly over center  
point of fireplace flue collar, mark the ceiling to estab-  
lish the chimney center point. (Fig. 11)  
FPC556  
Fig. 11 Locate centerline of chimney with plumb line.  
Offset Installation  
Ceiling Chimney Hole/  
Possible Obstructions  
In order to clear an obstruction, it may be necessary  
to offset chimney from vertical. This is accomplished  
by using CFM Corporation elbows. Use the 30˚ Offset  
Elbow table on Page 5 to determine proper offset and  
parts required.  
The size of the hole in ceiling will vary with the angle at  
which the chimney passes through ceiling.  
Drive a nail up through ceiling at marked chimney center  
point. Go to floor above and see where hole will be cut.  
Check to see where existing ceiling joists and other pos-  
sible obstructions are located...i.e. wiring, plumbing etc...  
If necessary, reposition chimney and/or fireplace to avoid  
obstructions.  
Each offset requires two (2) elbows. The second  
elbow is equipped with support straps. It is very  
important to install the second elbow in each offset as  
close to the ceiling or support as possible so the elbow  
straps can be secured to framing members to help  
support the weight of the chimney.  
Cutting the Hole  
Determine offset distance of your chimney arrange-  
ment from centerline of fireplace to centerline of chim-  
ney where it is to pass through ceiling.  
Cover fireplace collar opening and cut proper sized  
chimney hole in chimney. The SK8 pipe allows you to  
run pipe through a typical 16” on center joist without cut-  
ting joists.  
Locate center point of the chimney on ceiling as  
though a straight up chimney arrangement is to be  
used. Measure your offset dimension from straight up  
chimney center point on ceiling.  
20000583  
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WMC Series Woodburning Fireplace  
Framing the Ceiling Hole  
Frame the ceiling chimney hole as shown in Figure 13.  
It is good practice to use framing lumber that is the  
same size as the ceiling joists; this is a requirement at  
attic level.  
Metal Safety  
Strips  
(1, 2 or 3 Pieces)  
The following table gives firestop spacer model num-  
bers:  
"Z"  
Fire-  
Place  
Angle of Chimney at Ceiling  
Safety  
Strip  
(not supplied)  
Size of Chimney  
8" Flue  
Vertical  
SKFS2A  
30°  
SKFS6A  
¹⁄₂" (13mm)  
Min. Overlap  
Plat-  
Form  
"SK" Series  
14¹⁄₂" x 14¹⁄₂"  
(368mm x 368mm) (368mm x 648mm)  
14¹⁄₂" x 25¹⁄₂"  
Hearth Ext.  
1¹⁄₂"  
FPC557(38mm)  
8" Flue  
FS2A  
FS6A  
"S" Series 3-Wall  
17¹⁄₂" x 17¹⁄₂"  
(445mm x 445mm) (454mm x 753mm)  
17⁷⁄₈" x 29⁵⁄₈"  
Fig. 14 Safety strip installation.  
Safety strips are used to ensure that any combustible  
materials in front of the fireplace are protected even  
though a noncombustible hearth extension is required.  
Fig. 12 Ceiling chimney hole sizes necessary for installing  
firestop spacer.  
The inside dimension of the frame must be the same  
as the hole size selected from Figure 13 in order  
to provide required air space between the outside  
diameter of the chimney and the edges of the framed  
ceiling hole. (1¹⁄₂" - SK8; 2" - 3 wall)  
If fireplace is to be elevated above the floor, a “Z”  
shaped metal safety strip must be fabricated and used  
to protect combustible surfaces in front of the fireplace.  
This “Z” shaped safety strip is not provided but must be  
fabricated of metal with each horizontal leg at least 1¹⁄₂"  
(38 mm) wide and equal in length to the metal strips  
provided with the fireplace.  
See  
See  
Existing  
Fig. 12  
Ceiling  
Joists  
Fig. 12  
Note: Safety strips are not required over noncombus-  
tible floors where all supports at the base of the fireplace  
are noncombustible.  
Chimney  
Hole  
Four (4) nailing flanges are supplied with the fireplace  
(found on the fireplace hearth). To level the box and  
secure it firmly in place, remove the nailing flanges from  
the hearth and install at the sides of the fireplace as  
shown in Figure 15.  
Ceiling  
New Framing  
Members  
Nail Top  
Standoffs  
FP551  
Fig. 13 Typical frame for ceiling chimney hole.  
Positioning, Safety Strips,  
Securing The Fireplace  
Nail Side-  
Nailing  
Slide fireplace into position.  
Flanges  
Lift the fireplace front slightly and slide the metal safety  
strips under front bottom edge about 1¹⁄₂" (38 mm),  
allowing the remainder to extend in front of firebox.  
Overlap strips at least 1/2" (13 mm) to provide a posi-  
tive joint. (Flat safety strips are packed with fireplace.)  
(Fig. 14)  
FPC549  
Fig. 15 Fasten fireplace in position.  
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WMC Series Woodburning Fireplace  
Installing Outside Air Kit  
Inner Pipe Section  
An outside air kit is installed in all WMC Series Fire-  
places. If desired, or if local codes mandate the use of  
an air kit, then an AK-MST is required to complete the  
installation (from air kit to the outdoors). If the outside  
air kit is to be used, the AK-MST MUST be installed  
BEFORE the fireplace is enclosed. Refer to the AK-  
MST instructions for field installation. The outside air  
control lever is located at the front edge of the left side  
brick. To open’, push the control lever down toward  
the hearth brick. To close’, pull the control lever up  
and over. (Fig. 16)  
Pipe  
Rim  
Hem  
Lance  
Pipe  
Rim  
FPC558  
Fig. 17 Install pipe, listening for the snap-lock to fasten.  
Support Structure  
CLOSED  
OPEN  
Elbow Strap  
Elbow Strap  
(Must be tight)  
FP710  
Ceiling  
Hole  
Framing  
Fig. 16 Outside air operation.  
Angled Strap  
Installing the Chimney System  
Start by attaching the first chimney section to the collar  
on top of the fireplace.  
Angle Firestop  
Install the pipe as pictured in Figure 17. When you  
get a good lock, you will hear the pipe clearly snap  
together. Once sections are snap-locked in place, it is  
extremely difficult to get them apart. Make sure the  
pipe is firmly snapped and locked together as each  
pipe section is mounted.  
Chimney Support Strap  
FP270/271  
(Must be tight)  
Fig. 18 Attach straps to a structural framing member.  
Hole sizes listed in Figure 13 for angled firestop spacers  
provide minimum required air space to chimney pipe for  
ceiling thickness up to 8" (203 mm). When combined  
thickness of ceiling material, ceiling joists and flooring  
material exceeds 8" (203 mm), adjustments must be  
made in framing to assure that minimum air spaces to  
chimney are maintained.  
When installing elbows, only outer pipe will snap- lock.  
Middle pipes simply slide into position. Be sure to  
always attach straps on upper elbow to a structural  
framing member. (Fig. 18)  
Continue installing the pipe as required until pipe is  
installed up through the ceiling. At this point, you must  
install a firestop spacer.  
Proper Firestop Spacer Installation  
Installing the Firestop Spacer  
in the Ceiling Hole  
Figure 19 shows different installation procedures for  
both an area that is an attic and an area that is not an  
attic.  
A firestop spacer is used to keep pipe spaced properly  
and required for safety.  
If the area above the ceiling is not an attic, position the  
firestop spacer with the flange on the ceiling side and the  
angled portion extending up into the hole.  
Nail the firestop spacer (at each corner) to the framing  
members of the ceiling hole. NOTE: A firestop spacer  
is not required at the roof.  
If the area above the ceiling is an attic, position the  
firestop spacer with the flange on the top of the framed  
20000583  
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WMC Series Woodburning Fireplace  
Attic Installation  
Nails (4)  
Attic Insula-  
tion Shield  
Firestop Spacer  
Nails  
(4 required)  
Joist  
Attic Joist  
Ceiling Installation  
Base  
Flanges  
Ceiling  
FP263  
Joist  
Fig. 20 Attic shield installlation (Canadian requirement).  
Chimney Supports  
Firestop Spacer  
Nails (4)  
If chimney supports are required, they are installed  
the same as elbows. Nail chimney support straps to  
adjacent structural framing, as shown on Page 7, Figure  
7. Bend straps as necessary and make sure they are  
secure so they will support the weight of the chimney. A  
chimney support is 2¹⁄₂" long when installed. Consider  
this dimension when determining how many straight  
chimney sections are needed.  
FP593  
Fig. 19 Installing firestop spacer.  
hole and the angled portion extending down into the  
hole.  
Firestop spacers are not available for nor are they re-  
quired on vertical walls.  
NOTE: Chimney supports are generally used in long  
runs in a chase installation.  
DO NOT put any sealant around the area where the  
outer pipe slides through the firestop spacer. If you seal  
this area, it may cause a fire hazard.  
Additional Ceilings  
If you encounter additional ceilings, repeat same steps  
required for first ceiling installation. Refer to firestop  
illustration on Figure 19.  
Canadian Requirements for  
Insulation Shield  
Penetrating the Roof  
In Canada, an attic insulation shield is required to pre-  
vent attic insulation from contacting the chimney sec-  
tion. Framing dimensions for the chimney hole should  
measure 14¹⁄₂" x 14¹⁄₂" (368 x 368 mm) for SK8; 17¹⁄₂" x  
17¹⁄₂" (445 x 445 mm) for 3-wall. An attic shield MUST  
be installed on top of attic joists (above the floor level).  
(Fig. 20)  
Run pipe to roof line. Since chimney system must be  
vented to the out-of-doors, you must use an approved  
termination.  
If a chase is used, refer to the installation manual pro-  
vided with the termination cap.  
Locate Chimney Centerpoint On Roof  
NOTE: In the U.S., it is a good idea, although not al-  
ways required, to install an attic insulation shield where  
blown-in insulation is planned to be used in the attic.  
Use same procedure detailed in locating center point of  
the flue system.  
Drive a nail up through roof at the center point. This will  
determine center point on outside of the roof.  
Install the attic insulation shield with the flanges on its  
base extending down into the framing hole. Nail each  
corner of attic insulation shield to the framing members  
of the ceiling hole using 8d nails. Attic shields are not  
required at the roof.  
Cut and Frame Roof Hole  
Size of roof hole varies with the type of chimney ter-  
mination installed. Refer to installation instructions  
provided with the chimney termination to find correct  
size of roof hole.  
Continue Installing Pipe to Complete Run  
Continue attaching pipe sections to complete system  
to next level always being careful that the pipe is firmly  
snapped locked in place before proceeding to next pipe  
There must be an air space (1¹⁄₂" - SK8; 2" - 3-wall)  
between outermost portion of chimney sections and any  
section.  
12  
20000583  
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WMC Series Woodburning Fireplace  
adjacent combustible surfaces. (Combustible surfaces  
include burnable materials such as: ceiling members,  
joists, flooring, combustible insulation and roof struc-  
tures.)  
Air Space Clearances  
Combustible framing material MUST NOT  
penetrate AIR SPACE (shaded areas).  
WARNING: DO NOT PACK REQUIRED AIR SPACES  
WITH INSULATION OR OTHER MATERIALS.  
Mark an outline of the roof hole around the center of the  
point nail. NOTE: Hole dimensions given in the chim-  
ney top installation instructions are horizontal dimen-  
sions; therefore, the hole size must be marked on the  
roof accordingly.  
1¹⁄₂" (SK8)  
2" (3-wall)  
Standoff  
¹⁄₂" Air Space  
To Sides  
Cover the opening of the installed chimney so debris  
cannot get into the system.  
Cut and frame the hole. It is good practice to use fram-  
ing lumber that is the same size as the rafters. Install  
the frame securely because the chimney top and flash-  
ing anchored to the frame must be able to withstand  
heavy winds.  
Front View  
Side View  
Firestop  
Install Remainder of Chimney Sections  
Since you have already preplanned the height of your  
termination according to the Ten Foot Rule, continue to  
install pipe to the predetermined height.  
Wall  
Shield  
¹⁄₂" Air  
Space  
to Back  
Check the chimney top installation instructions for  
details on how high above the roof top the chimney sec-  
tions (all pipes) should extend.  
¹⁄₂" Air  
Space  
to Sides  
Installing Top Housing  
or Termination  
Follow the installation instructions provided with the  
chimney termination you have selected.  
Installing Chimney In a Chase  
0" Clearance  
to Floor  
Refer to Page 4, Figure 3 for an illustration of a typical  
chase installation.  
Only noncombustible  
material may be applied  
as facing to the black  
fireplace surround.  
Hearth  
Extension  
CAUTION: Treatment of firestop spacers and con-  
struction of chase may vary with type of building.  
These instructions are not a substitute for local  
building codes. You must check your local building  
codes to determine specific requirements for your  
city or state. NOTE: Other building materials may  
be required in addition to Firestop Spacers.  
FPC559  
Fig. 21 Minimum clearances to combustibles.  
Finish Wall  
Finish the wall with material of your choice. Do not  
install a combustible mantel shelf less than 12"  
(305 mm) from top of grille opening. Do not install  
a mantel face plate less than 6" (159 mm) from top  
of grille opening. (Fig. 23) If a combustible material is  
used below a flat mantel shelf, consult your local build-  
ing codes for minimum clearance from top of fireplace  
opening to bottom of mantel shelf.  
Finishing  
CAUTION: All joints between the finished wall and  
the fireplace surround (top/sides) must be sealed with  
noncombustible material to prevent cold air leakage into  
the room. Only noncombustible material may be applied  
to the facing of the fireplace surround. (Black painted  
area) (Fig. 21)  
All joints (top, bottom and sides) where wall or deco-  
rative facing material meets fireplace surround must  
be completely sealed with a noncombustible material.  
(Figs. 22 and 23)  
20000583  
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WMC Series Woodburning Fireplace  
NOTE: No side wall protection is required for fireplaces  
installed at 45° to two (2) side walls (corner installation).  
Combustible  
12"  
Mantel and  
(305mm)  
Finished Wall  
Often a decorative surround or vertical portion of the  
mantel is desired. If this is constructed of any combus-  
tible material it must be within the safe zone indicated in  
Figure 23.  
Trim  
Max.  
1¹⁄₂"  
(38mm)  
Header  
Standoff  
Noncombustible  
Material  
12" (305mm)  
Min.  
6"  
Side Wall Protection  
(159mm)  
Min.  
Adjacent combustible side walls that are within the mini-  
mum dimensions shown in Figure 24 of fireplace open-  
ing must be protected with CFM Corporation Wall Shield  
Model SP40 or a specifically built wall shield described  
below.  
Grille  
Opening  
Fireplace  
Opening  
Top View  
The special wall shield design described in Figure 19 is  
an alternate method of adding protection to side walls  
and can be used in place of the SP40 with the same  
wall clearances specified for the SP40. Rt must =1.85  
minimum.  
¹⁄₂"  
2 x 4 Stud  
Finished Wall  
Must be sealed with non-  
combustible material  
Fireplace Front  
FP531b  
Examples of wall shield insulation:  
Fig. 22 Mantel clearance.  
1. Manville - CERAFORM 126, K=.27,  
1/2 inches thick  
2. CFM Corporation - EH2416, K = .458,  
1 inch thick required.  
Face Plate  
*
1¹⁄₂"  
Ref.  
**  
Combustible materials are  
permitted within a shaded area  
shown in Figure 23 titled  
* 12" from top of grille opening for circu-  
lating models  
Minimum Wall Clearances.  
** 6" from top of grille opening for circu-  
lating models  
MA81  
Fig. 23 Combustible mantel clearances.  
20000583  
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WMC Series Woodburning Fireplace  
WARNING: HEARTH EXTENSION MUST BE IN-  
STALLED IN ACCORDANCE WITH FIGURE 24 AND  
MUST NOT COVER THE BOTTOM FRONT OPENING  
OF THE CIRCULATING MODEL.  
Hearth Installation  
A hearth extension is required to protect a combustible  
floor in front of the fireplace. Refer to Figure 24 for  
minimum dimensions and mounting detail.  
Alternate noncombustible materials may be used provid-  
ing the (total) thermal resistance (Rt value) of the alter-  
nate material employed is greater than or equal to R =  
1.09. Thermal resistance (R) or thermal conductivity (K),  
may be obtained from manufacturer of the material. Fac-  
tors are related by the formula K = 1/R.  
NOTE: Hearth Extension must not cover the air  
inlet/outlet opening of a fireplace.  
The hearth extension described in Figure 24 must be a  
durable noncombustible material with a minimum (to-  
tal) Rt value of 1.09; refer to Figure 25 for examples.  
The overall height (above a combustible floor), depth  
and width must be as indicated, with the extension  
centered to the fireplace opening.  
T = given thickness  
R = thermal resistance for a given thickness (T)  
K = thermal conductivity  
The top of insulation must be covered with a noncom-  
bustible decorative covering or a piece of .018” mini-  
mum sheet metal, to protect hearth extension material.  
(Fig. 24)  
Noncombustible material with a lower R value may  
be used, provided thickness of material is sufficiently  
greater to maintain an equivalent (total) thermal resis-  
tance (Rt).  
Secure the hearth extension to the floor to prevent  
shifting, using trim molding or other similar means at  
three (3) outer edges. Seal crack between the fire-  
place hearth and hearth extension with a noncombus-  
tible material. (Figs. 22 and 26)  
Minimum Hearth Extension Dimensions  
Minimum Wall Clearances  
(for On-Site Construction)  
WITH  
Noncombustible  
Surround Facing  
WITHOUT  
Noncombustible  
Surround Facing  
Shaded area starts  
1/2" away from  
edge of unit  
4"  
G
G
4" BRICK  
(Example material)  
H
J
FIREBOX  
OPENING  
E
E
Seal cracks  
between the  
fireplace  
and hearth  
extension with  
noncombustible  
material  
F**  
May install  
D
noncombustible  
decorative  
covering  
OR .018" min.  
sheet metal  
A - Min. clearance  
to combustible  
perpendicular wall  
C**  
SIDE  
WALL  
SIDE  
WALL  
B - Min. clearance  
to combustible  
FIREPLACE  
HEARTH  
perpendicular wall when  
using noncombustible wall shield*  
4" MIN.  
Combustible material permitted within shaded area.  
Noncombustible wall shield requires 1" Majestic EH2416  
insulation (minimum R Value = 1.85) between decorative  
noncombustible rigid covering and combustible wall.  
Minimum height and width is 40" x 40".  
Dimension/degree of angle will vary depending on thickness  
of noncombustible surround facing.  
*
MINIMUM  
INSULATION  
VALUE "R"  
Safety strips  
must overlap  
" minimum  
COMBUSTIBLE  
FLOOR  
**  
A
B
C
D
E
F
G
H
J
WMC36  
WMC42  
16"  
12"  
48°  
41°  
18"  
14"  
7³⁄₄"  
16"  
48"  
406 mm 305 mm  
20" 12"  
508 mm 305 mm  
457 mm 356 mm 197 mm 406 mm 1219 mm  
18" 14" 11¹⁄₂" 20" 61¹⁄₂"  
457 mm 356 mm 292 mm 508 mm 1562 mm  
42°  
35°  
FP594A  
Fig. 24 Combustible side wall protection and hearth extension dimensions.  
20000583  
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WMC Series Woodburning Fireplace  
COMMON MATERIALS AND FACTORS  
Wall Covering  
MINIMUM  
THICKNESS  
R
MATERIAL  
K*  
Noncombustible  
Decorative  
Facing  
2x4" Header -  
Do not notch at  
standoffs.  
EH2416  
(CFM Corporation)  
1.09 0.50 in.**  
0.10 5.46 in.**  
0.458  
Seal all cracks  
between fireplace  
surround and wall  
materials with  
noncombustible  
material.  
Common Brick  
5.0  
R Value is for Z\x inch.  
* Units of K = BTU/SQ FT/HR/˚F/IN  
** Thickness of Listed Material  
Noncombustible  
Decorative  
Covering  
FP533ADD  
Fig. 25 Hearth extension material factors.  
Example of Determining Hearth Extension  
Equivalents  
Seal crack  
between fireplace  
and hearth extension  
with noncombustible  
material.  
Hearth Extension  
Insulation  
NEW  
required = ------------------------------------  
thickness K of listed material (per inch)  
K of new material (per inch)  
thickness  
of listed  
material  
X
Side View  
Safety Strips -  
Must be overlapped  
¹⁄₂" minimum.  
FP550  
To determine the thickness required for any new mate-  
rial:  
Fig. 26 Sealing gaps.  
Example for Common Brick  
T (new) = 5.0 / 0.458 x 0.50 in. = 5.46 in. (new re-  
quired thickness).  
20000583  
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WMC Series Woodburning Fireplace  
Hole in Outer Casing  
Fireplace Top View  
Installing Line for Gas Logs  
CFM Corporation fireplaces are designed to accept a  
1/2" gas line for installation of an approved gas appli-  
ance. (CFM Corporation manufactures a wide variety  
of gas logs for use in CFM Corporation fireplaces.)  
1"  
Min.  
Supply  
Line  
Gas Line  
Tube  
Be sure to have the appliance installed in accordance  
with building codes.  
Ceramic  
Knockout  
Repack Insula-  
tion  
Gas connection may enter from either left or right side  
of the fireplace.  
1/2"  
Locate appropriate gas line access hole in the outer  
casing of fireplace and remove insulation from gas line  
tube. (Fig. 27)  
Hole in Outer  
Casing  
From inside the fireplace, locate the knockout on  
the firebrick -- be sure you are on the appropriate or  
"gas line" side of the fireplace. Using a flat bladed  
screwdriver or small chisel and hammer, carefully tap  
around the knockout until it loosens and falls out.  
Ceramic Knock-  
out  
(Both sides)  
Install 1/2" certified gas pipe through opening. After  
gas pipe installation is complete, use insulation that  
was removed from gas line tube to repack space  
around the pipe. Material should be inserted from out-  
side of the fireplace and packed tightly to totally seal  
between the pipe and tube.  
FPC560  
Fig. 27 Gas line access.  
CAUTION: WHEN USING DECORATIVE GAS AP-  
PLIANCE, FLUE DAMPER MUST BE SET IN FULLY  
OPEN POSITION. IF YOU HAVE GLASS DOORS  
ON THE FIREPLACE, THEY MUST ALSO BE FULLY  
OPENED.  
NOTE: Gas pipe should not come in contact with  
any wood structures until it has reached a point at  
least one (1) inch away from fireplace side.  
WARNING: DO NOT OPERATE AN UNVENTED GAS  
LOG SET IN THIS FIREPLACE WITH THE CHIMNEY  
REMOVED.  
NOTE: When installing an ANSI Z21.11.2 ventless  
appliance, the finishing materials used for the mantel  
must be rated at 250°F or greater.  
WARNING: WHEN INSTALLING AN UNVENTED  
GAS LOG SET, THE CFM CORPORATION MODEL  
AH3244BK OR AH3244PB 4" ADJUSTABLE HOOD  
MUST BE USED.  
BTU input of a gas appliance installed in fireplace  
should be rated less than 100,000 BTU/Hr.  
Gas pipe installation is intended for connection to a  
decorative gas appliance only when (1.) incorporat-  
ing an automatic shut-off device and (2.) complying  
with the Standard for Decorative Gas Appliances for  
Installation in Vented Fireplaces (ANSI Z21.60) or  
CSA draft requirements for Gas-Fired Log Lighters for  
Woodburning Fireplaces (Draft No. 4, August 1993).  
Decorative gas appliance should be installed in accor-  
dance with the National Fuel Gas Code, ANSI Z223.1/  
NFPA 54 (latest edition).  
If installing an unvented gas log set, refer to statement below:  
Only unvented gas log sets which have been found to comply with  
the Standard for Unvented Room Heaters, ANSI Z21.11.2, are to be  
installed in this fireplace.  
20000583  
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WMC Series Woodburning Fireplace  
1
8
2
6
10  
9
13  
7
11  
5
14  
12  
3
15  
4
16  
19  
20  
21  
18  
17a,b  
583  
CFM Corporation reserves the right to make changes in design, materials, specificaitons, prices and discontinue colors and products at any time,  
without notice.  
WMC36/42 Woodburning Fireplace  
Item/Model Number  
WMC36  
WMC42  
1. Damper Blade  
7551310  
7551310  
2. Top Grille Painted (Used for top and bottom)  
3. Top Grille Painted (Used for top and bottom)  
4. Basket Grate  
5. Screen (two per fireplace)  
6. Damper Knob (Wood)  
7. Screen Pulls (two per fireplace)  
8. Firebrick - Left Side  
9. Firebrick - Back  
20000711  
20000711  
3041130  
7554338  
7536177  
5584139  
3041104  
3030102  
3041105  
3041103  
3030126  
3030172  
2253160  
7512135  
20003076  
20002984  
20005309  
20003384  
7540264  
20000620  
2544900  
20000714  
20000714  
3041130  
7554338  
7536177  
5584139  
3034102  
3034104  
3034103  
3034105  
3032112  
3030172  
2253160  
7512135  
20003076  
20002985  
20005310  
20003435  
7540264  
20000620  
2544900  
10. Firebrick - Right Side  
11. Firebrick - Hearth  
12. Screen Rod Assembly  
13. Top Brick Retainers (three per fireplace)  
14. Nailing Flange - Bag of 4 w/screws  
15. Cable Clips (four per fireplace)  
16. O.S.A. Assy.  
17a. Door Assy. - Brass Doors  
17b. Door Assy. - Black Doors  
18. Door Track Assy.  
19. Closure Spring  
20. Blower Assembly  
21. Variable Speed Control  
20000583  
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WMC Series Woodburning Fireplace  
Accessories  
The following accessories for this appliance are available from your local distributor. Should you need additional in-  
formation beyond what your distributor can furnish, contact: CFM Corporation, 2695 Meadowvale Blvd., Mississauga,  
Ontario, Canada L5N 8A3; Attn: Technical Services.  
CAUTION: This fireplace and chimney assembly is a highly engineered system, and, as such, must be oper-  
ated only with CFM Corporation approved components. If you use an unapproved component to make any  
modifications, you may create a possible fire hazard and will void the CFM Corporation warranty. In addition,  
such action may void the coverage provided by the owner’s insurance.  
Accessory  
Description  
Model Number  
Glass Door — Optional  
Bi-Fold door set Brushed Brass finish  
36GDKBB (WMC36)  
42GDKBB (WMC42)  
36GDKDP (WMC36)  
42GDKDP (WMC42)  
36GDKS (WMC36)  
42GDKS (WMC42)  
AK-MST  
TWABR  
EH2416  
HPC-1  
20000945 (WMC36)  
20000946 (WMC42)  
Deluxe Polished finish  
Pewter finish  
Outside Air Termination  
Chimney Adapter  
Hearth Extension Insulation  
Hearth Patch Compound  
OGWMC36  
Completes connection from air kit to out-of-doors  
Converts WMC36 to use 3-wall system  
Provides hearth extension floor protection  
Patch cracks in hearth  
Optional brass trimmed, black mesh grille  
Optional brass trimmed, black mesh grille  
OGWMC42  
Contact your CFM Corporation distributor or dealer for finishing Mantels,  
available in a wide selection of styles.  
20000583  
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WMC Series Woodburning Fireplace  
Chimney Components  
U.S.  
Component  
Description  
Model Number  
RLTSK8  
Round Top Termination  
(SK8)  
Top used to terminate chimney at roof.  
(Flashing not included.)  
Round Top Termination -  
Extended (SK8)  
Flashing  
Top used to terminate chimney at chase.  
(Flashing not included.)  
Metal finishing required around Contemporary  
Termination to prevent rain leakage.  
RLTSK8L  
8-6-12 with 8" flue:  
0-6/12 pitch  
8-12-12 with 8" flue:  
6/12-12/12 pitch  
S20BR(Red)  
S20BT(Tan)  
S20BW(White)  
202036  
Square Top Housing  
Housing Extensions  
Top housing of simulated brick pattern  
available in red, tan or white. Appropriate  
adapter required. Flashing included.  
Extends Square Top Housing on steep pitched  
roofs. (Specify red, tan or white)  
Square Shroud  
(SK8)  
Square Chase Termination  
Square knockdown shroud for RLTSK8L  
chase applications. (Black)  
SKDSBL  
CT100  
Housing used to terminate chimney through  
a chase top. (Unpainted finish)Appropriate  
adapter (CTSK) required.(Flashing not included.)  
Pyramid knock-down shroud for RLTSK8L  
chase application. (Black)  
Low profile pyramid-style chimney cap used to  
terminate chimney through a chase. Includes  
adapter. (Flashing not included.)  
Pyramid Shroud  
PKDSBL  
PLTSK8  
Chase Top Housing  
(SK8)  
Chase Top Housing  
(SK8)  
Square chimney cap used to terminate chimney  
through a chase. Includes adapter.  
(Flashing not included.)  
SLTSK8  
SK8 Chimney Sections  
Pipe used to build 8" (SK8) flue systems.  
SK81 (1' Long)  
SK818 (1¹⁄₂' Long)  
SK83 (3' Long)  
SK84 (4' Long)  
SK830-2  
SK8 Chimney Elbows  
Elbow used to create an offset in an 8"  
chimney system. Only 30˚ elbows available.  
Packaged 2 per carton (offset and return).  
Required at each floor level of chimney  
installation. (Plus attic on multi-story installation.)  
Firestop  
(SK8)  
SKFS2A —  
(8" straight flue)  
SKFS6A —  
(8" 30˚ inclined flue)  
SKCS8  
Chimney Support  
(SK8)  
Used to support chimney for each of: 30' vertical  
height and 6' of angled chimney run.  
Chimney Sections  
(3-wall)  
Pipe used build 8" (3-wall) flue systems.  
81 (1' Long)  
818 (1¹⁄₂' Long)  
83 (3' Long)  
84 (4' Long)  
830A-2  
Chimney Elbows  
(3-wall)  
Used to create an offset in an 8" chimney system.  
Only 30° elbows available.  
Packaged 2 per carton (offset and return).  
Top used to terminate chimney at roof.  
(Flashing not included)  
Round Top Termination  
(3-wall)  
RLTS8  
Round Top Termination  
Extended (3-wall)  
Top used to terminate chimney at chase.  
Adapter kit included. (Flashing not included)  
RLTS8L  
20000583  
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WMC Series Woodburning Fireplace  
(Chimney Components con't.)  
Component  
Description  
Model Number  
Square Chase Termination  
Square chimney cap used to terminate chimney  
through chase. Includes adapter.  
SLTS8  
(Flashing material)  
Adapter Kit  
Required to unite 3-wall chimney with S20BR,  
S20BT, S20BW Traditional Top Housing  
Used to support the chimney at each 30' of  
of vertical height above the hearth and  
at every 6' of inclined chimney run.  
Each support adds 2¹⁄₂" to chimney length.  
Required at each floor level and attic on  
multi-story installation.  
S20UB  
TCS8A  
Chimney Support  
Firestop  
FS2A (8" straight flue)  
FS6A (8" 30° inclined  
flue)  
Radiant Shield  
Used as an alternate to FS2A firestop to  
reduce the clearance from the chimney to  
combustible framing. With 16" center lines.  
Used to prevent attic insulation from  
contacting the chimney system.  
RS-8A  
Attic Insulation Shield  
(3-wall) (CF-11)  
Canada  
FS2100-HT  
CCE-SK  
AIS-SK  
Chimney Collar Enclosure  
(SK8)  
Installs on the "over the chimney collar" of the  
fireplace; provides outside air to assist in cooling  
the chimney system.  
Used to prevent insulation from coming in  
contact with the chimney system.  
Used to build chimney systems exposed above  
roof.  
Attic Insulation Shield  
(SK8)  
SK8 Chimney Sections  
SK818CAN (1¹⁄₂' Long)  
SK84CAN (4' Long)  
SK845/2  
45˚ Chimney Elbows  
Provides 45˚ offset and return. For Canadian  
installations only. For use with SK8 chimney only.  
(Maximum use of 2, or 1 pair.)  
Chimney Sections  
(3-wall)  
Used to build chimney systems exposed above  
roof.  
8" flue  
818CAN (1¹⁄₂' Long)  
84CAN (4' Long)  
FS2100-HT  
Attic Insulation Shield  
(3-wall) (CF-11)  
Used to prevent attic insulation from  
contacting the chimney system.  
20000583  
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WMC Series Woodburning Fireplace  
20000583  
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LIMITED WARRANTY & 30 YEAR PROTECTION PLAN  
For MAJESTIC FIREPLACES PRE-ENGINEERED Fireplace Systems  
CFM Corporation warrants its Pre-Engineered Fireplace  
(“Fireplace”) and the CFM Corporation-supplied firegrate,  
glass doors, outside air system, fan motor, and liners to be  
free from defects in material or workmanship, as follows:  
ated at all times under normal conditions, use and service ac-  
cording to the operative instructions furnished with the Fireplace,  
and only if and so long as the Fireplace is not removed from its  
original installation.  
(2) This warranty is non-transferrable, and is made to the original  
owner, provided that the purchase was made through an autho-  
rized supplier of the Company.  
(3) The sole and exclusive remedies for breach of any warranties  
hereunder shall be for the repair, replacement or provision of a  
replacement part at CFM Corporation then current list price, FOB  
CFM Corporation factory, for any defective part as specified in  
paragraphs A through D.  
A. Fireplace and Chimney Components: (exclusive of CFM  
Corporation-supplied firegrate, glass doors, outside air system,  
fan motor, and liners all of which are covered by separate  
warranties under paragraphs B through D below): At its option  
for a period of thirty (30) years from the date the Fireplace is  
installed, CFM Corporation either will;  
(1) For a period of five (5) years from the date the Fireplace is  
installed, CFM Corporation, at its option, will repair or replace  
any defective part without charge.  
(2) Thereafter, through the 10th year after the date the Fire-  
place is installed, if replacement parts are available, CFM  
Corporation will provide a replacement for any defective part  
without charge for the part itself. The consumer must pay for  
everything else other than the part.  
(3) Thereafter, through the 30th year after the date the Fire-  
place is installed, if replacement parts are available, CFM  
Corporation will provide a replacement for any defective part  
at a cost to the consumer of CFM Corporation then current list  
price, FOB CFM Corporation factory.  
(4) CFM Corporation shall not be liable for damage from any  
smoking of a CFM Corporation Pre-Engineered Fireplace  
System related to environmental geographic conditions (such  
as, for example, nearby structures or roof peaks, trees, hills, or  
mountains), inadequate ventilation, or negative air pressure in  
the place where the Fireplace system is installed, related to any  
mechanical system (such as, for example, furnaces, fans, air  
conditioners, clothes dryers, etc.)  
(5) Except as otherwise expressly specified in paragraphs A  
through D, NONE OF THESE WARRANTIES COVER, AND  
CFM CORPORATION SHALL NOT BE RESPONSIBLE FOR,  
ANY CONSTRUCTION, INSTALLATION, LABOR, TRANS-  
PORTATION OR OTHER COSTS OR EXPENSES ARISING  
FROM A DEFECTIVE PART, ITS REPAIR OR REPLACEMENT  
OR OTHERWISE, NOR SHALL CFM CORPORATION IN ANY  
EVENT BE RESPONSIBLE FOR ANY INDIRECT, INCIDENTAL  
OR CONSEQUENTIAL DAMAGES EXCEPT TO THE EXTENT  
REQUIRED BY LAW. Some states do not allow the exclusion or  
limitation of incidental or consequential damages, so this exclu-  
sion or limitation may not apply to you.  
B. Firegrate, Glass Doors, Outside Air System:  
For a period of 90 days from the date the Fireplace is installed  
CFM Corporation, at its option, will provide a replacement for  
any defective part, without charge for the part itself, FOB CFM  
Corporation factory, (The consumer must pay for everything  
else other than the part,).  
C. Fan Motor:  
(1) For a period of one (1) year from the date the Fireplace is  
installed, CFM Corporation, at its option, will repair or replace  
any defective part without charge.  
(2) Thereafter, through the 30th year after the date the Fire-  
place is installed CFM Corporation, at its option, if replacement  
parts are available, will provide a replacement for any defec-  
tive part at a cost to the consumer of CFM Corporation then  
current list price, FOB CFM Corporation factory.  
NO IMPLIED WARRANTIES, INCLUDING THE IMPLIED WAR-  
RANTIES OF MERCHANTABILITY AND FITNESS FOR A PAR-  
TICULAR PURPOSE, SHALL REMAIN IN EFFECT AFTER THE  
EXPIRATION OF THE WARRANTIES SET FORTH IN PARA-  
GRAPHS A THROUGH D. Some states do not allow limitations  
on how long an implied warranty lasts, so this limitation may not  
apply to you.  
D. Liners (Refractory or Metal):  
In order to obtain performance of any of the above warranty  
obligations write to CFM Corporation at this address:  
(1) For a period of two (2) years from the date the Fireplace is  
installed, CFM Corporation, at its option, will repair or replace  
any defective part without charge.  
(2) Thereafter, through the 30th year after the date the Fire-  
place is installed CFM Corporation, at its option, if replacement  
parts are available, will provide a replacement for any defec-  
tive part at a cost to the consumer of CFM Corporation then  
current list price, FOB CFM Corporation factory.  
This warranty is subject to the following conditions and limita-  
tions:  
(1) This warranty is extended only to a Fireplace installed in  
the continental United States, the state of Alaska and Canada;  
only if and so long as the Fireplace is installed according to the  
installation instructions furnished with the Fireplace, and oper-  
CFM Corporation  
2695 Meadowvale Blvd.  
Mississauga, Ontario, Canada L5N 8A3  
Attention: Director of Warranty Services  
Since local building requirements may vary greatly throughout  
the country, users of CFM Corporation products should deter-  
mine in advance whether there are any building code restrictions  
on the use of a specific product. CFM CORPORATION MAKES  
NO REPRESENTATION OR WARRANTY REGARDING, AND  
SHALL NOT BE RESPONSIBLE FOR, ANY BUILDING CODE  
COMPLIANCE.  
The foregoing warranties give you specific legal rights and you  
may also have other rights which vary from state to state.  
20000583  
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CFM Corporation  
2695 Meadowvale Blvd. • Mississauga, Ontario, Canada L5N 8A3  
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