Monessen Hearth WR400 User Manual

WR/WC Series  
Woodburning Fireplace  
For Models:  
WC400, WR400  
WC500, WR500  
Homeowner's Installation  
and Operating Manual  
For use in U.S./Canada  
Underwriter's Laboratories Report No. MH6018  
DO NOT DISCARD THIS MANUAL: Retain for future use.  
20014528 12/09 Rev. 3  
WR / WC Series Woodburning Fireplace  
WR400 Series Woodburning Fireplace  
22" (559mm)  
Rough  
Opening  
Depth  
11" Dia.  
4856O" (1232mm)  
5/8”(13mm)  
856M"  
(279mm)  
(210mm)  
2256O"  
(572mm)  
8" Dia.  
(203mm)  
22"  
5/8"  
Recessed  
Nailing  
Flange  
(559mm)  
(16mm)  
Rough Opening Width 41"  
" (876mm)  
(1041mm)  
56O  
34  
Rough  
Opening  
Height  
5/8" (16mm)  
" (1740mm)  
56O  
1/2"  
68  
756O"  
(191mm)  
39ꢀ6 "  
(1006mm)  
43ꢁ6M"  
(1111mm)  
24"  
Outside  
Gas Line  
Access  
(610mm)  
Air  
756O"  
36"  
(914mm)  
22ꢁ6M"  
(578mm)  
(191mm)  
Gas Line  
Access  
14ꢀ6 "  
(372mm)  
11"  
(279mm)  
7ꢁ6M"  
(197mm)  
8"  
3"  
40"  
(1016mm)  
(203mm)  
15ꢁ6 "  
(391mm)  
(76mm)  
Electrical  
Access  
FP589  
Fig. 1 WR400 Series specifications and framing.  
WC400 Series Woodburning Fireplace — Circulating Model  
22" (559mm)  
Rough  
Opening  
Depth  
2256O"  
(572mm)  
11" Dia.  
(279mm)  
8" Dia.  
4856O" (1232mm)  
1/2" (13mm)  
856M"  
(210mm)  
(203mm)  
22"  
5/8"  
(16mm)  
Recessed  
Nailing  
(559mm)  
Flange  
Rough Opening Width 41"  
(1041mm)  
" (876mm)  
56O  
Rough  
Opening  
Height  
34  
5/8" (16mm)  
" (1740mm)  
56O  
1/2"  
68  
756O"  
(191mm)  
43ꢀ6M"  
(1111mm)  
39ꢁ6 "  
(1006mm)  
3856M"  
(971mm)  
Gas Line  
Access  
756O"  
(191mm)  
Outside Air  
36"  
(914mm)  
24"  
(610mm)  
22ꢀ6M"  
(578mm)  
Gas Line  
Access  
14ꢁ6 "  
(372mm)  
11"  
(279mm)  
7ꢀ6M"  
(197mm)  
8"  
3556O" (902mm)  
3"  
(76mm)  
1ꢀ6M"  
(45mm)  
(203mm)  
15ꢀ6 "  
(391mm)  
40" (1016mm)  
Electrical Access  
FP590  
Fig. 2 WC400 Series specifications and framing.  
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WR / WC Series Woodburning Fireplace  
WR500 Series Woodburning Fireplace  
2656M"  
(667mm)  
Rough  
Opening  
Depth  
50" (1270mm)  
1/2" (13mm)  
11" Dia.  
856M"  
(279mm)  
2256O"  
(210mm)  
(572mm)  
8" Dia.  
(203mm)  
22"  
(559mm)  
Recessed  
Nailing  
5/8"  
(16mm)  
Flange  
Rough Opening Width 47"  
(1194mm)  
Rough  
Opening  
Height  
36" (914mm)  
5/8" (16mm)  
1/2"  
" (1791mm)  
56O  
70  
756O"  
(191mm)  
43ꢁ6M"  
(1111mm)  
39ꢀ6 "  
(1006mm)  
Outside  
Gas Line  
Access  
22ꢁ6M"  
(578mm)  
756O"  
Air  
42"  
(1067mm)  
(191mm)  
24"  
(610mm)  
Gas Line  
Access  
14ꢀ6 "  
(372mm)  
11"  
(279mm)  
7ꢁ6M"  
(197mm)  
3"  
46"  
(1168mm)  
8"  
(76mm)  
(203mm)  
15ꢀ6 "  
(397mm)  
Electrical  
Access  
FP591  
Fig. 3 WR500 Series specifications and framing.  
WC500 Series Woodburning Fireplace — Circulating Model  
2656M"  
(667mm)  
Rough  
Opening  
Depth  
2256O"  
(572mm)  
11" Dia.  
(279mm)  
50" (270mm)  
1/2" (13mm)  
856M"  
(210mm)  
8" Dia.  
(203mm)  
22"  
5/8"  
(16mm)  
Recessed  
Nailing  
(559mm)  
Flange  
Rough Opening Width 47"  
(1194mm)  
Rough  
Opening  
Height  
36" (914mm)  
5/8" (16mm)  
" (1791mm)  
O
6
5
70  
1/2"  
756O"  
(191mm)  
43ꢀ6M"  
(1111mm)  
39ꢁ6 "  
(1006mm)  
3856M"  
(971mm)  
Gas Line  
Access  
756O"  
(191mm)  
Outside Air  
42"  
(1067mm)  
24"  
(610mm)  
22ꢀ6M"  
(578mm)  
Gas Line  
Access  
14ꢁ6 "  
(372mm)  
11"  
(279mm)  
7ꢀ6M"  
(197mm)  
8"  
38" (965mm)  
46" (1168mm)  
3"  
(76mm)  
1ꢀ6M"  
(45mm)  
(203mm)  
15ꢀ6 "  
(391mm)  
FP592  
Electrical Access  
Fig. 4 WC500 Series specifications and framing.  
4
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WR / WC Series Woodburning Fireplace  
B
C
A
FP1531  
Front Width back Width Depth  
A
b
C
WR/WC400  
WR/WC500  
31¹⁄₈"  
(791 mm)  
19⁷⁄₈"  
15¹⁄₂"  
(505 mm) (394 mm)  
36³⁄₄"  
22⁷⁄₈"  
15¹⁄₂"  
(934 mm)  
(581 mm)  
394 mm)  
Fig. 4a Hearth dimensions.  
Chase Installation  
Insulation methods s
for cold climate, not
unit operation.  
Termination Cap  
Storm Collar  
Pan Flashing  
Batt Insulation  
(cut out around fiestop)  
Draftstop  
Firestop  
Ceiling Level  
Standoff  
Surround  
Damper Control  
Nailing Flange  
Gas Line Knockout  
(both sides)  
Gas Line Access  
(both sides)  
Screen  
Grate  
Electrical Access  
Firebox  
Outside Air Cover Plate  
Metal Safety Strips  
(1, 2 or 3 pieces)  
FP554  
Fig. 5 Fireplace and chase parts identification.  
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5
WR / WC Series Woodburning Fireplace  
Chimney Requirements - Offset Installations  
OFFSET  
CHIMNEY FLUE EXIT  
RISE  
CHIMNEY  
SECTION  
IWF282  
30°  
ELBOW  
30˚ elbow Offsets  
RETURN  
ELBOW  
B
G
A
G
1'  
Offset  
3' 4'  
Rise  
1¹⁄₂'  
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
30°  
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
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
3"  
8¹⁄₄"  
11"  
20"  
OFFSET  
ELBOW  
D
C
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
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"  
47¹⁄₄" 87¹⁄₂"  
51"  
53¹⁄₄"  
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"  
SKCS8  
SUPPORT  
30°  
RETURN  
ELBOW  
H
OFFSET  
H
30°  
OFFSET  
ELBOW  
B
HEARTH  
FLOOR  
Example 1  
Example 2  
Example 3  
IWF269  
Notes: G + H cannot exceed 20 feet.  
Air Space Clearances: SK8 (2-wall) = 1¹⁄₂" and "S" Series (3-wall) = 2"  
94"  
98"  
Illustration Key  
The following safety rules apply to offset  
installations (letters correspond with il-  
lustration above):  
C. The chimney cannot be more than 30˚  
(45˚ in Canada) from the vertical plane in  
any installation*.  
124"  
128"  
A. Height of the chimney is measured  
from the hearth to the chimney exit.  
D. The maximum length of the angled run  
of the total chimney system is 20 feet. (G  
plus H cannot exceed 20 feet.)  
2
2
2
2
2
2
2
2
146"  
WR/WC400 WR/WC500  
e. A chimney support (Model SKCS8)  
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 ver-  
tical chimney height above the hearth.  
Maximum:  
Minimum:  
90'0"  
90'0"  
Without Elbows 12' 6"  
With 2 Elbows* 14' 6"  
With 4 Elbows* 21' 0"  
12' 6"  
14' 6"  
21' 0"  
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.  
2 101¹⁄₄" 181³⁄₄"  
2 104¹⁄₄" 186¹⁄₄"  
2 107¹⁄₄" 191¹⁄₂"  
chimney.  
Attach the straps of the return (top) elbow  
to a structural framing member.  
2
3
3
3
110¹⁄₄" 196³⁄₄"  
114" 203¹⁄₄"  
117³⁄₄" 209³⁄₄"  
120" 213¹⁄₂"  
The offset (first) elbow of any pair does  
not have straps.  
NOTe: This offset distance may not be  
your full offset distance. See Examples 2  
and 3.  
3 123³⁄₄"  
220"  
* In Canada, two (2) SK845 are allowed.  
Fig. 6 Chimney system requirements.  
6
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WR / WC 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. To ensure proper draft,  
it is recommended that you always meet or exceed the  
Ten Foot Rule,” especially when installing a termination  
on a high pitch roof. (Fig. 8)  
Mounting the Fireplace  
A fireplace may only be mounted on the following sur-  
faces:  
The key points of the "Ten Foot Rule" are:  
1. A flat combustible surface.  
2. A raised wooden platform.  
3. A concrete block or other solid object placed beneath  
each of the four (4) corners of the fireplace.  
1. If the horizontal distance from the chimney to the  
peak of the roof is 10' (3m) or less, the top of the  
chimney must be at least 2' (610mm) above the peak  
of the roof, but never less than 3' (914mm) in height  
above the highest point where it passes through the  
roof.  
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. (Page 14, Fig. 20)  
2. If a horizontal distance from the chimney to the peak  
of the roof is more than 10' (3m), a chimney height  
reference point is established on the surface of the  
roof a distance of 10' (3m) from the chimney in a  
horizontal plane. The top of the chimney must be  
at least 2' (610mm) above the reference point, but  
never less than 3' (614mm) in height above the high-  
est point where it passes through the roof.  
Planning the Chimney Run  
TOTAL  
INSTALLED  
LENGTH  
L
L
L
T
1
1
LENGTH  
MODEL SK  
2 WALL CHIMNEY  
(L )  
(L )  
T
1
SK81  
SK818  
SK83  
SK84  
1056O"  
1656O"  
3456O"  
4656O"  
1156O"  
1756O"  
3556O"  
4756O"  
0 To 10'  
2' Min.  
0 To 10'  
3'  
WF288  
Min.  
Fig. 7 Installed lengths of chimney sections.  
2' Min.  
3'  
Min.  
Determine how the chimney will be run, length of run  
and chimney components required to complete the  
job. (Fig. 6) Never install a chimney below minimum  
heights.  
Reference  
Point  
AC246  
In planning a chimney system, it is important to know:  
Fig. 8 Ten Foot Rule illustration.  
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 chimney  
system) is 20' (6m).  
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 is required for chimneys extend-  
ing more than 6' (1.8m) above a roof line.  
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7
WR / WC Series Woodburning Fireplace  
Chimney Supports  
Installation  
The chimney system is supported by the fireplace for  
vertical chimney heights less than 30' (9m) above the  
hearth. Chimney supports are required if the vertical  
height exceeds 30' (9m) with SK8 chimneys or 20' (6m)  
with 3-wall chimneys. Locate chimney supports at ceil-  
ing holes or other structural framing at 30' (9m) (SK8)  
or 20' (6m) (3-wall) heights. Spacing between chimney  
supports must not exceed 30' (9m) (SK8) or 20' (6m)  
(3-wall). Use Chimney Support Model SKCS8. (NOTe:  
The SKCS8 can not be mounted directly to the  
fireplace.) Support provided by elbow straps fulfills the  
support requirement only if they are spaced as previ-  
ously described. (A chimney support is 2¹⁄₂" (64mm)  
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 in-  
sulation 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. 10)  
Angled chimney runs require a support every 6' (1.8m)  
in addition to the elbow straps. Chimney supports are  
used for this function. (Fig. 9)  
When a fireplace is installed in a chase or on an  
outside wall, enclosure should be treated like any  
outside wall in a home. Insulation should be in-  
stalled 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. Insu-  
lation may then be installed above sheeting material  
to assure the space around the fireplace is totally  
protected. (Fig. 5)  
Chase Installation  
A chase is a vertical box like 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. 5)  
If you need help in determining fireplace location or how  
the chimney system should be run, contact your MHSC  
dealer for assistance.  
When installing the chimney, DO NOT caulk be-  
tween outer pipe and firestop. It is vital that some  
air be allowed to flow through this very thin gap.  
CAUTION: WHeN INSTALLINg A FIRePLACe IN  
AN INSULATeD eNCLOSURe, be SURe ALL Re-  
QUIReD AIR SPACeS ARe MAINTAINeD. (Page  
14, Fig. 20)  
Chimney Sup-  
port Strap  
SKCS8  
FP284  
Fig. 9 Chimney support installation  
8
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WR / WC Series Woodburning Fireplace  
Framing  
Option For Circulating Models Only —  
Framing can be constructed before or after the fireplace  
is set in place, however, most installers build the frame  
before setting the fireplace.  
eb1 (Receptacle) Hook-Up  
• Wiring should be installed by a certified  
electrician.  
• Turn off circuit breaker before wiring models.  
Frame fireplace with 2 x 4 lumber or heavier materials.  
Refer to framing dimensions in Figures 1, 2, 3 or 4 for  
basic fireplace specifications.  
Once fireplace is secured, complete wiring the fan  
kit. Remove knockout in the center of the back of  
the EB1 and install listed cable clamps. Feed electri-  
cal wire through listed cable clamp leaving approxi-  
mately six (6) inches of wire exposed through the  
EB1. Secure listed cable clamp to the wire.  
NOTe: Framing should be positioned to accommodate  
wall covering and fireplace facing material.  
Installing electrical Wire  
(for Circulator Models)  
Attach white wire from power source to one (1) wire  
of receptacle and secure with nut. Attach black  
wire from power source to the other wire of recep-  
tacle and secure with nut. Be sure nuts are secured  
tightly.  
If a circulating fireplace is to be installed, run the 120  
VAC, 60 Hz wiring to the left side of installation. Wiring  
must be completed before the fireplace is secured and  
finish material applied.  
Remove the cover plate and electrical knockout on the  
lower left side of the fireplace and set aside. Follow the  
instructions on Page 10 for proper wiring and installation  
of the EB1.  
Secure EB1 assembly to inside of electrical box  
coverplate using two screws. Attach cover to face of  
the EB1 while being careful to position excess wire  
completely within the EB1, then attach coverplate to  
fireplace.  
If the fan kit is not being installed with the fireplace, it  
is highly recommended that 120 VAC supply be made  
available since someone may elect to install a blower at  
a later date.  
Install Fan Kit Assembly  
Refer to optional Model FK12 fan kit assembly in-  
stallation instructions for field installation.  
Chimney Setup  
Hard Flat  
Surface  
Since you have already preplanned the chimney run,  
you should know exactly how the installation is to be ac-  
complished — how much pipe is required, the number  
of elbows, if any, and type of termination to be used.  
CAUTION: REPORT TO YOUR DEALERS ANY  
PARTS DAMAGED IN SHIPMENT, SPECIFICALLY  
CHECK THE END CONNECTION OF CHIMNEY SEC-  
TIONS AND ELBOWS.  
NOTe: Fireplaces may use MHSC model SK8, or Mod-  
el S (three wall) chimney systems. The WR/WC Series  
"A" Fireplace will accept the SK8 chimney system as is;  
but a TWABR adapter collar is required when using the  
Model S (triple wall) chimney system. The installation  
procedure described in this manual applies only to the  
SK8 system. Either chimney system may be used, but  
may not be mixed.  
Insulation  
Platform  
FP555  
Fig. 10 Insulating between platform and fireplace.  
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9
WR / WC Series Woodburning Fireplace  
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 that the elbow straps  
can be secured to framing members to help support the  
weight of the chimney.  
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"  
(235mm). Mark a spot on the ceiling directly above the  
fireplace. Draw a line parallel to the back wall through  
this mark. (Fig. 11)  
Determine offset distance of your chimney arrangement  
from centerline of fireplace to centerline of chimney  
where it is to pass through ceiling.  
Using a plumb bob positioned directly over center point  
of fireplace flue collar, mark the ceiling to establish the  
chimney center point. (Fig. 11)  
Locate center point of the chimney on ceiling as though  
a straight up chimney arrangement is to be used. Mea-  
sure your offset dimension from straight up chimney  
center point on ceiling.  
Offset Installation  
In order to clear an obstruction, it may be necessary to  
offset chimney from vertical. This is accomplished by  
using MHSC elbows. Use the 30° Offset Elbow table on  
Page 6 to determine proper offset and parts required.  
Ceiling Chimney Hole/  
Possible Obstructions  
The size of the hole in ceiling will vary with the angle at  
which the chimney passes through ceiling.  
Each offset requires two (2) elbows. The second elbow  
Drive a nail up through ceiling at marked chimney cen-  
ter point. Go to floor above and see where hole will be  
cut. Check to see where existing ceiling joists and other  
possible obstructions are located...i.e. wiring, plumbing  
etc... If necessary, reposition chimney and/or fireplace  
to avoid obstructions.  
Chimney Centerline  
Actual Centerpoint  
956M"  
(235mm)  
Cutting the Hole  
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  
cutting joists.  
Plumb Line  
Plumb Bob  
Framing the Ceiling Hole  
Frame the ceiling chimney hole as shown in Figure  
12. It is good practice to use framing lumber that is the  
same size as the ceiling joists; this is a requirement at  
attic level.  
Imaginary Cen-  
terpoint  
Existing  
Ceiling Joist  
AB  
AB  
Chimney Hole  
Ceiling  
FP556  
New  
Fig. 11 Locate centerline of chimney with plumb line.  
Framing Members  
A "SK" Series framing = 1456O" X 1456O" (368 x 368mm)  
B "S" Series framing = 1756O" X 1756O" (445 x 445mm)  
FP551  
Fig. 12 Typical frame for ceiling chimney hole.  
10  
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WR / WC Series Woodburning Fireplace  
The following table gives firestop spacer model num-  
bers:  
NOTe: Safety strips are not required over noncom-  
bustible floors where all supports at the base of the  
fireplace are noncombustible.  
Angle of Chimney at Ceiling  
Four (4) nailing flanges are incorporated on each cor-  
ner of the surround. Bend the nailing flanges out, level  
the box, then secure it firmly in place by nailing the  
flanges to the framing members as shown in Figure  
15.  
Size of Chimney  
8" Flue  
Vertical  
SKFS2A  
14¹⁄₂" x 14¹⁄₂"  
30°  
SKFS6A  
14¹⁄₂" x 25¹⁄₂"  
"SK" Series  
(368mm x 368mm) (368mm x 648mm)  
8" Flue  
"S" Series 3-Wall  
FS2A  
17¹⁄₂" x 17¹⁄₂"  
FS6A  
17⁷⁄₈" x 29⁵⁄₈"  
(445mm x 445mm) (454mm x 753mm)  
Fig. 13 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 the 1¹⁄₂" (38mm) of air space between  
the outside diameter of the chimney and the edges of  
the framed ceiling hole.  
Nail Top  
Standoffs  
Nail Side-  
Nailing  
Flanges  
Positioning, Safety Strips,  
Securing the Fireplace  
Slide fireplace into position.  
FP549  
Lift the fireplace front slightly and slide the metal safety  
strips under front bottom edge about 1¹⁄₂" (38mm), al-  
lowing the remainder to extend in front of firebox. Over-  
lap strips at least 1/2" (13mm) to provide a positive joint.  
(Flat safety strips are packed with fireplace.) (Fig. 14)  
Fig. 15 Fasten fireplace in position.  
Installing Outside Air Kit  
An outside air kit is installed in all WR/WC 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 be-  
FORe the fireplace is enclosed. Refer to the AK-MST  
instructions for field installation.  
Metal Safety Strips  
(1, 2 or 3 pieces)  
Installing the Chimney System  
Start by attaching the first chimney section to the collar  
on top of the fireplace.  
"Z" Safety  
Strip  
Fire-  
(not sup-  
place  
plied)  
Install the pipe as pictured in Figure 16. 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.  
1/2" Min.  
Plat-  
Overlap  
form  
Hearth Ext.  
156O"  
FP557  
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.  
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. 17)  
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"  
(38mm) wide and equal in length to the metals strips  
provided with the fireplace.  
20014528  
11  
WR / WC Series Woodburning Fireplace  
Continue installing the pipe as required until pipe is  
installed up through the ceiling. At this point, you must  
install a firestop spacer.  
Pipe Section  
Pipe  
Rim  
Installing the Firestop Spacer  
in the Ceiling Hole  
Hem  
Lance  
Pipe  
Rim  
A firestop spacer is used to keep pipe spaced properly  
and required for safety.  
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.  
Hole sizes listed in Figure 13 for angled firestop spac-  
ers 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.  
FP558  
Fig. 16 Install pipe, listening for the snap-lock to fasten.  
Proper Firestop Spacer Installation  
elbow Strap  
Support Structure  
Figure 18 shows different installation procedures for  
both an area that is an attic and an area that is not an  
attic.  
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.  
Elbow Strap  
(must be tight)  
Ceiling Hole  
Framing  
If the area above the ceiling is an attic, position the  
firestop spacer with the flange on the top of the framed  
hole and the angled portion extending down into the  
hole.  
Angled Strap  
Firestop spacers are not available for nor are they re-  
quired on vertical walls.  
Angle Firestop  
Chimney Support Strap  
(must be tight)  
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.  
FP270/271  
Fig. 17 Attach straps to a structural framing member.  
Canadian Requirements  
for Insulation Shield  
In Canada, an attic insu-  
Ceiling Installation  
Attic Installation  
lation shield is required  
to prevent attic insulation  
from contacting the chim-  
ney section. NOTe: If the  
attic insulation shield is  
used, the firestop is not  
required in the attic instal-  
lation. Framing dimen-  
sions for the chimney  
hole should measure  
Nails (4)  
Joist  
Firestop  
Spacer  
Firestop  
Spacer  
Joist  
14¹⁄₂" x 14¹⁄₂" (368 x 368  
mm). An attic shield  
Nails (4)  
NOTe: If the attic insulation shield is used, the  
MUST be installed on top  
of attic joists (above the  
floor level). (Fig. 19)  
firestop is not required in the attic installation.  
FP593  
Fig. 18 Installing firestop spacer.  
12  
20014528  
WR / WC Series Woodburning Fireplace  
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.  
Penetrating the Roof  
Run pipe to roofline. Since the chimney system must be  
vented to the out-of-doors, you must use an approved  
termination.  
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.  
If a chase is used, refer to the installation manual pro-  
vided with the termination cap.  
Locate Chimney Centerpoint On Roof  
Use same procedure detailed in locating centerpoint of  
the flue system.  
Attic  
Insulation  
Shield  
Drive a nail up through roof at the center point. This will  
determine center point on outside of the roof.  
Nails  
(4 required)  
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.  
Attic Joist  
There must be a 1¹⁄₂ (38 mm) air space between out-  
ermost portion of chimney sections and any adjacent  
combustible surfaces. (Combustible surfaces include  
burnable materials such as: ceiling members, joists,  
flooring, combustible insulation and roof structures.)  
Base  
Flanges  
Ceiling  
FP263  
Fig. 19 Attic shield installlation (Canadian requirement).  
WARNINg: DO NOT PACK ReQUIReD AIR SPACeS  
WITH INSULATION OR OTHeR MATeRIALS.  
Continue Installing Pipe to Complete Run  
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.  
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  
section.  
Chimney Supports  
Cover the opening of the installed chimney so debris  
cannot get into the system.  
If chimney supports are required, they are installed  
the same as elbows. Nail chimney support straps to  
adjacent structural framing, as shown on, Page 8, Fig.  
9. 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" (64 mm) long when installed.  
Consider this dimension when determining how many  
straight chimney sections are needed.  
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.  
Install Remainder of Chimney Sections  
NOTe: Chimney supports are generally used in long  
runs in a chase installation.  
Since you have already preplanned the height of your  
termination according to the Ten Foot Rule, continue to  
install pipe to the predetermined height.  
Additional Ceilings  
Check the chimney top installation instructions for  
details on how high above the roof top the chimney sec-  
tions (all pipes) should extend.  
If you encounter additional ceilings, repeat same steps  
required for first ceiling installation. Refer to firestop  
illustration on Page 12, Figure 18.  
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13  
WR / WC Series Woodburning Fireplace  
Installing Top Housing  
or Termination  
Air Space Clearances  
Combustible framing material MUST NOT  
penetrate AIR SPACE (shaded areas).  
Follow the installation instructions provided with the  
chimney termination you have selected.  
Installing Chimney In a Chase  
Refer to Page 5, Figure 5 for an illustration of a typical  
chase installation.  
156O"  
Standoff  
CAUTION: Treatment of firestop spacers and construc-  
tion 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.  
1/2" air space  
to sides  
Front View  
Side View  
Firestop  
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. 20)  
Wall  
Shield  
1/2" Air  
Space  
to Back  
1/2" Air  
Space  
to Sides  
Finish Wall  
Finish the wall with material of your choice. Do not  
install a combustible mantel shelf less than 12" (305  
mm) from the top of the fireplace opening for radiant  
models and 12" (305 mm) from top of grille opening  
for circulating models. Do not install a mantel face  
plate less than 6" (159 mm) from top of fireplace  
opening for radiant models and 6" (159 mm) from  
top of grille opening for circulating models. (Fig.  
22) If a combustible material is used below a flat man-  
tel shelf, consult your local building codes for minimum  
clearance from top of fireplace opening to bottom of  
mantel shelf.  
0" Clearance  
to Floor  
Only noncombustible  
material may be applied  
as facing to the black  
fireplace surround.  
Hearth  
Extension  
FP559  
Fig. 20 Minimum clearances to combustibles.  
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. 21 and 22)  
NOTe: No side wall protection is required for fireplaces  
installed at 45° to two (2) side walls (corner installation).  
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.  
14  
20014528  
WR / WC Series Woodburning Fireplace  
Mantel Clearance - Radiant  
Model - No Noncombustible  
Facing Material  
Mantel Clearance - Radiant Model  
- with Noncombustible Facing  
Material  
Mantel Clearance -  
Circulating Model  
Combustible Man-  
tel and Trim  
Combustible Man-  
Combustible  
Mantel and  
Trim  
tel and Trim  
12"  
(305mm)  
Max.  
12"  
(305mm)  
Max.  
12"  
(305mm)  
Max.  
Finished Wall  
Finished Wall  
Finished Wall  
156O"  
(38mm)  
156O"  
(38mm)  
12"  
(305mm)  
Min.  
156O"  
(38mm)  
Header  
Header  
Header  
12"  
12"  
Standoff  
Standoff  
Noncombustible  
Material  
Standoff  
(305mm)  
Min.  
(305mm)  
Min.  
Noncombustible  
Material  
Noncombustible  
Material  
6"  
(159mm)  
Min.  
Noncombustible Fac-  
ing Material  
Radiant  
Radiant Sur-  
round Face  
6"  
Circulating  
(159mm)  
Min.  
*
Front  
Surround  
Face  
Fireplace Open-  
ing  
Fireplace Open-  
ing  
Fireplace  
Opening  
* Minimum width from top of sur-  
round to bottom of screen rail  
Top View  
1/2"  
2 x 4 Stud  
Finished Wall  
Must be sealed with  
Noncombustible  
Material  
Fireplace  
Front  
FP531a  
Fig. 21 Mantel clearances.  
Face Plate  
*
156O"  
Ref.  
**  
*12" from top of fireplace opening for radiant  
models  
12" from top of grille opening for circulating  
models  
Combustible materials are  
permitted within a shaded area  
shown in Figure 23 titled  
Minimum Wall Clearances.  
**6" from top of fireplace opening for radiant  
models (Noncombustible material must sepa-  
rate the black face surround of the fireplace  
and any combustible mantel material)  
6" from top of grille opening for circulating  
models  
MA81  
Fig. 22 Combustible mantle clearances.  
20014528  
15  
WR / WC Series Woodburning Fireplace  
Hearth Installation  
Side Wall Protection  
A hearth extension is required to protect a combustible  
floor in front of the fireplace. Refer to Figure 23 for mini-  
mum dimensions and mounting detail.  
Adjacent combustible side walls that are within the mini-  
mum dimensions shown in Figure 23 of fireplace open-  
ing must be protected with MHSC Wall Shield Model  
SP40 or a specifically built wall shield described below.  
NOTe: Hearth extension must not cover the air  
inlet opening of a fireplace.  
The special wall shield design described in Figure 20 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.  
The hearth extension described in Figure 23 must be a  
durable noncombustible material with a minimum (total)  
Rt value of 1.09; refer to Figure 24 for examples. The  
overall height (above a combustible floor), depth and  
width must be as indicated, with the extension centered  
to the fireplace opening.  
examples of wall shield insulation:  
1. Manville - CERAFORM 126, K=.27,  
1/2 inches thick  
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. 23)  
2. MHSC - EH2416, K = .458,  
1 inch thick required.  
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 fireplace  
hearth and hearth extension with a noncombustible  
material. (Figs. 23 and 25)  
Minimum Hearth Extension Dimensions  
(for On-Site Construction)  
Minimum Wall Clearances  
WITH  
WITHOUT  
Noncombustible  
Surround Facing  
Noncombustible  
Surround Facing  
Shaded area starts  
1/2" away from  
edge of unit.  
G
G
4" BRICK  
(Example material)  
H
4"  
J
FIREBOX  
OPENING  
E
E
Seal cracks  
between the  
fireplace  
and hearth  
extension with  
noncombustible  
material  
F**  
D
May install  
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" MHSC 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  
1/2" minimum  
COMBUSTIBLE  
FLOOR  
**  
A
b
C
D
e
F
g
H
J
WR/WC400  
WR/WC500  
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°  
FP594  
Fig. 23 Combustible side wall protection and hearth extension dimensions.  
16  
20014528  
WR / WC Series Woodburning Fireplace  
Side View  
COMMON MATERIALS AND FACTORS  
Wall Covering  
MINIMUM  
THICKNESS  
R
MATERIAL  
K*  
Noncombus-  
tible Decorative  
Facing  
2 x 4 Header  
(Do not notch  
at standoffs)  
EH2416  
(MHSC)  
1.09 0.50 in.**  
0.458  
Seal all cracks  
between fireplace  
surround and wall  
materials with noncom-  
bustible material  
Common Brick  
0.10 5.46 in.**  
5.0  
R Value is for 1/2 inch.  
* Units of K = BTU/SQ FT/HR/˚F/IN  
** Thickness of Listed Material  
Noncombustible  
Decorative Cover-  
ing  
FP533ADD  
Fig. 24 Hearth extension material factors.  
WARNINg: HeARTH eXTeNSION MUST be IN-  
STALLeD IN ACCORDANCe WITH FIgURe 23 AND  
MUST NOT COVeR THe bOTTOM FRONT OPeNINg  
OF THe CIRCULATINg MODeL.  
Seal crack between  
fireplace and hearth  
extension with noncom-  
bustible material  
Hearth Extension  
Insulation  
Alternate noncombustible materials may be used  
providing the (total) thermal resistance (Rt value) of the  
alternate 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.  
Factors are related by the formula K = 1/R.  
Safety Strips  
Must be overlapped 1/2"  
minimum  
FP550  
Fig. 25 Sealing gaps.  
T = given thickness  
R = thermal resistance for a given thickness (T)  
K = thermal conductivity  
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).  
example of Determining Hearth extension  
equivalents  
To determine the thickness required for any new mate-  
rial:  
NEW  
required  
thickness  
K of new material (per inch)  
K of listed material (per inch)  
thickness  
of listed  
material  
=
X
example for Common brick  
T (new) = 5.0/0.458 x 0.50 in. = 5.46 in. (new required  
thickness).  
20014528  
17  
WR / WC Series Woodburning Fireplace  
Installing Line for gas Logs  
Fireplace Top View  
Hole in Outer Casing  
MHSC fireplaces are designed to accept a 1/2" (13 mm)  
gas line for installation of an approved gas appliance.  
(MHSC manufactures a wide variety of gas logs for use  
in MHSC fireplaces.)  
1"  
Min.  
Supply  
Line  
Gas Line  
Tube  
Be sure to have the appliance installed in accordance  
with building codes.  
Repack Insula-  
tion  
Ceramic  
Knockout  
Gas connection may enter from either left or right side  
of the fireplace.  
1/2"  
Locate appropriate gas line in the outer casing of fire-  
place and remove insulation from gas line tube. (Fig.  
26)  
Hole in  
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 screw-  
driver or small chisel and hammer, carefully tap around  
the knockout until it loosens and falls out.  
Ceramic  
Knockout  
(Both sides)  
Install 1/2" (13 mm) 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  
outside of the fireplace and packed tightly to totally seal  
between the pipe and tube.  
FP560  
Fig. 26 Gas line access.  
CAUTION: WHeN USINg DeCORATIVe  
gAS APPLIANCe, 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.  
NOTe: When installing an ANSI Z21.11.2 ventless ap-  
pliance the finishing material used for the mantel must  
be rated at 250°F or greater.  
WARNINg: DO NOT OPeRATe AN  
UNVeNTeD gAS LOg SeT IN THIS FIRe-  
PLACe WITH THe CHIMNeY ReMOVeD.  
BTU input of a gas appliance installed in fireplace  
should be rated less than 100,000 BTU/Hr.  
WARNINg: WHeN INSTALLINg AN  
UNVeNTeD gAS LOg SeT, THe MHSC  
MODeL CAbL OR CAbR 4" ADJUSTAbLe  
HOOD MUST be USeD.  
Gas pipe installation is intended for connection to a  
decorative gas appliance only when (1.) incorporating  
an automatic shutoff device and (2.) complying with the  
Standard for Decorative Gas Appliances for Installa-  
tion in Vented Fireplaces (ANSI Z21.60) or CSA draft  
requirements for Gas-Fired Log Lighters for Woodburn-  
ing 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 logsets which have been found to com-  
ply with the Standard for Unvented Room Heaters, ANSI  
Z21.11.2, are to be installed in this fireplace.  
18  
20014528  
WR / WC Series Woodburning Fireplace  
1
8
2
9
b
4
5
c
d
3
a
e
7
10  
6
11  
12  
MHSC reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time, without  
notice.  
WR400/500, WC400/500 SeRIeS  
Ref. Description  
WR/WC400  
RP199  
WR/WC500  
RP199  
3030176  
61D0500  
070874  
20005421  
20005462  
20005461  
20005460  
20005418  
3030172  
7512135  
3030143  
20014520  
20014520  
3041130  
20003076  
1. Damper Weld Assembly  
2. Damper Bracket  
3. Screen Rod (two per fireplace)  
4. Pull Screen (two per fireplace)  
5a. Firebrick - Hearth  
5b. Firebrick - Rear  
5c. Firebrick - Right Side  
5d. Firebrick - Left Side  
3030176  
26D0138  
61D0001  
20005621  
20005627  
20005626  
20005625  
20005619  
3030172  
7512135  
3030143  
20014484  
20014484  
3041130  
5e. Firebrick - Ashlip  
6. Top Brick Retainers (three per fireplace)  
7. Cable Clips (two per fireplace)  
8. Outer Collar Assembly (SK8 Chimney)  
9. Louvre Assembly (WC Only)  
10. Louvre Assembly (WC Only)  
11. Basket Grate  
12. O.S.A. Assy.  
20003076  
20014528  
19  
WR / WC Series Woodburning Fireplace  
Accessories  
The following accessories for this appliance are available from your local MHSC distributor. Should you need addi-  
tional information beyond what your distributor can furnish, contact: MHSC, 149 Cleveland Drive, Paris, KY 40361,  
Attn: Technical Services.  
CAUTION: This fireplace and chimney assembly is a highly engineered system, and, as such, must be operat-  
ed only with MHSC approved components. If you use an unapproved component to make any modifications,  
you may create a possible fire hazard and will void the MHSC warranty. In addition, such action may void the  
coverage provided by the owner’s insurance.  
Accessory  
Description  
Model Number  
Glass Door — Standard  
Bi-Fold door set  
Brushed Brass finish  
36GDKBBSR (WR/WC400)  
42GDKBBSR (WR/WC500)  
Black finish  
36GDKBKSR (WR/WC400)  
42GDKBKSR (WR/WC500)  
Polished Brass finish  
Pewter finish  
36GDKDPSR (WR/WC400)  
42GDKDPSR (WR/WC500)  
36GDKSSR (WR/WC400)  
42GDKSSR (WR/WC500)  
Fan Kit  
Provides forced air flow  
FK12  
Variable Speed Control  
Outside Air Termination  
Chimney Adapter  
Provides speed adjustment of fans  
Completes connection from air kit to out-of-doors  
Converts fireplace to 3-wall system  
Provides hearth extension floor protection  
Holds firewood in firebox  
SCVS  
AK-MST  
TWABR  
EH2416  
RSBG36  
HPC-1  
Hearth Extension Insulation  
Grate WR/WC400/500  
Hearth Patch Compound  
Patch cracks in hearth  
Contact your MHSC distributor or dealer for finishing Marble and  
Mantels, available in a wide selection of styles.  
20  
20014528  
WR / WC Series Woodburning Fireplace  
Chimney Components  
U.S.  
Component  
Description  
Top used to terminate chimney at roof.  
(Flashing not included.)  
Model Number  
Round Top Termination  
RLTSK8  
Round Top Termination -  
Extended  
Top used to terminate chimney at chase.  
(Flashing not included.)  
RLTSK8L  
Flashing  
Metal finishing required around Contemporary  
Termination to prevent rain leakage.  
8-6-12 with 8" flue:  
0-6/12 pitch  
8-12-12 with 8" flue:  
6/12-12/12 pitch  
Square Termination  
Housing  
Top housing of simulated brick pattern  
available in red, tan or white. Appropriate  
adapter required. Flashing included.  
S20B (R, T, W)  
Must also include:  
PLTSK8 or SLTSK8  
Adapter Kit  
Unites Square Termination with chimney  
pipe (required).  
CF8CA  
202036  
CT100  
Housing Extensions  
Square Chase Termination  
Extends Square Termination on steep  
pitched roofs.  
Housing used to terminate chimney through  
a chase top. Appropriate adapter required.  
(Flashing not included.)  
Adapter Kit  
Unites Square Chase Termination with chimney  
pipe (required).  
CTSK  
Chase Top Housing  
Low profile pyramid-style chimney cap used to  
terminate chimney through a chase. Includes  
adapter. (Flashing not included.)  
PLTSK8  
Chase Top Housing  
Square chimney cap used to terminate chimney  
through a chase. Terra Cotta Masonry. 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)  
SK8 Chimney Elbows  
Firestop  
Elbow used to create an offset in an 8"  
chimney system. Only 30˚ elbows available.  
Packaged 2 per carton (offset and return).  
SK830-2  
Required at each floor level of chimney  
SKFS2A —  
installation. (Plus attic on multi-story installation.)  
(8" straight flue)  
SKFS6A —  
(8" 30˚ inclined flue)  
Chimney Support  
Used to support chimney for each of: 30' vertical  
height and 6' of angled chimney run.  
SKCS8  
20014528  
21  
WR / WC Series Woodburning Fireplace  
(Chimney Components con't.)  
Canada  
Component  
Description  
Model Number  
Chimney Collar Enclosure  
Installs on the "over the chimney collar" of the  
fireplace; provides outside air to assist in cooling  
the chimney system.  
CCE-SK  
Attic Insulation Shield  
SK8 Chimney Sections  
45˚ Chimney Elbows  
Used to prevent insulation from coming in  
contact with the chimney system.  
AIS-SK  
Used to build chimney systems exposed above  
roof.  
SK818CAN (1¹⁄₂' Long)  
SK84CAN (4' Long)  
Provides 45˚ offset and return. For Canadian  
installations only. For use with SK8 chimney only.  
(Maximum use of 2, or 1 pair.)  
SK845/2  
22  
20014528  
LIMITeD WARRANTY  
Factory-build Fireplace and Components  
(except blowers)  
What is Covered and For How Long  
Five-Year Coverage: For five years from the date this fireplace and components are first purchased for use, MHSC  
will, at its option, repair or replace any defective part of this fireplace or components, or refund to you a sum not to  
exceed the factory retail price in effect at the time of purchase.  
Ten-Year Coverage: From the sixth through the tenth year following the date this fireplace or accessory is first  
purchased for use, MHSC will make available to you, at our factory, a free replacement for any defective part in this  
fireplace or accessory.  
Twenty-Five-Year Availability of Replacement Parts: From the eleventh through the twenty-fifth year following the  
date this fireplace or accessory is first purchased for use, MHSC will make available at our factory replacement parts  
for this fireplace or accessory, which you may purchase for the list price current at the time your purchase order is  
received.  
What is Not Covered  
This limited warranty does not cover:  
Transportation or shipping cost.  
The cost of a service call to diagnose trouble.  
Painted surfaces.  
Damage or defect caused by improper installation, accident, misuse, abuse or alteration.  
Poor ventilation of smoke or gases caused by air-conditioning and heating systems, exhaust fans, or pressure dif-  
ferentials produced by wind.  
Broken glass components.  
Cracks in ceramic and castable parts that do not affect safe operation.  
We do not warrant this fireplace to be in compliance with your local building code. Building codes vary greatly  
throughout the country, and you should determine whether your local building code contains restrictions on the use  
of this fireplace before you purchase it.  
Blowers or fans, which are warranted separately.  
Heat loss due to the passage of heat or air through or around the fireplace.  
Also, under our five year coverage, we do not pay the cost of removal and replacement of any portion of the structure  
in which the fireplace is situated, made necessary by the repair, removal or re-installation of the fireplace.  
And under our twenty-five year warranty of availability of replacement parts, we only promise to maintain a supply of  
replacement parts at our factory for you to purchase.  
Limitations and exclusions  
1. No one has authority to add to or vary this limited warranty, or to create for MHSC any other obligations of liability  
in connection with this fireplace and accessory.  
2. MHSC shall not be liable for incidental, consequential, special or contingent damages you might suffer as a result  
of its breach of this written warranty or any implied warranty. Some states do not allow the exclusion of limitation of  
incidental or consequential damages, so the above limitations may not apply to you.  
3. This warranty applies only to a fireplace sold and used in the United States.  
For information about this warranty, contact:  
MHSC  
149 Cleveland Drive  
Paris, Kentucky 40361  
20014528  
23  
MHSC  
149 Cleveland Drive • Paris, Kentucky 40361  
20014528 10/08 Rev. 2  

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