Vermont Casting CR36L, CR36R User Manual
CR Series
Corner Woodburning Fireplace
Homeowner’s Installation
and Operating Manual
For Models:
For use in U.S./Canada
Underwriter’s Laboratories
Report No. MH6018
CR36R
CR36L
DO NOT DISCARD THIS MANUAL: Retain for future use.
20001316 3/06 Rev. 13
CR Series Woodburning Fireplaces
Safety Information
PLEASE READ THIS MANUAL BEFORE INSTALLING AND USING FIREPLACE.
IMPORTANT:
Read all instructions and warnings carefully before starting installation. Failure to
follow these instructions may result in a possible fire hazard and will void the warranty.
Description
The CR36R/L Series fireplaces are multi-sided solid
fuel, woodburning fireplaces. These are radiant models
only and include a preinstalled outside air kit.
Precautions
CFM Corporation fireplaces and component parts have
been highly tested and will operate safely when installed
in accordance with instructions provided in this manual.
Carefully read and understand all instructions before
beginning installation.
If you notice any damage to fireplace or component
parts, immediately report damage to your Majestic Fireplaces dealer.
Only use CFM Corporation components or the warranty
will be voided and a fire hazard may be created.
CFM Corporation warranty will be voided by and CFM
Corporation disclaims any responsibility for the following
actions:
• Installation of any damaged fireplace or chim-
ney component;
• Modification of fireplace, chimney assembly or
any component parts thereof; (except for chase
flashings as detailed in the Chimney Top installation instructions).
• Installation other than as instructed by CFM
Corporation; or
• Installation and/or use of any component part
not manufactured or approved by CFM Corporation in combination or assembly with a CFM
Corporation fireplace system, notwithstanding
any independent testing laboratory or other
third party approval of such component parts
or accessory.
Any such action may possibly cause a fire hazard.
Consult local building codes to ensure that you are in
compliance before installing the fireplace.
Fireplaces must be vented to the out-of-doors.
Do not obstruct or modify air inlets/outlets in any
manner.
Do not install combustible materials on any of the
black fireplace surround.
Burn only solid wood fuel or gas logs.
Do not install a solid fuel burning insert or other
products not specified for use with this fireplace.
Proposition 65 Warning:
burning or oil fired appliances, and the products of
combustion of such fuels, contain chemicals known to
the State of California to cause cancer, birth defects
and other reproductive harm.
California Health & Safety Code Sec. 25249.6
WARNING: Check with your electronics manufacturer before installing a television or other electronic
device above this fireplace.
Fuels used in gas, wood-
Drafts
The fireplace should not be located in areas that create
drafts (ie: frequently opened doors and central heating
air inlets/outlets) that hamper the normal flow of air into
the fire.
Gas Logs
If you plan to install a gas log, the gas line should be
installed before framing the fireplace. The gas line must
be installed by a certified gas line installer.
CR36R / CR36L
Listed
UL / ULC-S610
Standard for Factory Built Fireplaces
Units: FG10R7, FG10R8
Table of Contents
Safety Information ......................................... 2
Specifications and Framing ...........................
Parts Identification ........................................
Chimney Requirements ................................ 5
Planning Information ..................................... 6
Installation .................................................... 7
Replacement Parts ...................................... 17
Accessories ................................................ 18
3
4
2
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CR Series Woodburning Fireplaces
Rough
Opening
Depth
22³⁄₄"
(578mm)
22"
(559mm)
10"
(254mm)
³⁄₄" (19mm)
⁷⁄₁₆" (11mm)
29¹⁄₄" (743mm)
11" Dia.
(279mm)
1" Typ.
(25mm)
9⁷⁄₈"
(251mm)
6"
(159mm)
19⁹⁄₁₆"
(497mm)
21⁷⁄₁₆"
(545mm)
6³⁄₄"
(172mm)
36" (914mm)
40¹⁄₈" (1019mm)
41¹⁄₂"
(1054mm)
Gas Line
Access
9¹⁄₂"
(241mm)
8"
(203mm)
7"
(178mm)
14¹⁄₄"
(362mm)
4" Dia.
Outside
Air Collar
Rough
Opening
Height
25¹⁄₂" (648 mm)
25¹⁄₂" (648 mm)
32³⁄₈" (822 mm)
15⁵⁄₈"
(397 mm)
32³⁄₈" (822 mm)
15⁵⁄₈"
(397 mm)
CR36L
CR36R
CR36R/L Series Woodburning Fireplace
Fig. 1 CR36R/L Series specifications and framing.
Fig. 1a CR36R/L hearth dimensions.
FP1538
(CR36R Shown)
20001316
3
CR Series Woodburning Fireplaces
Chase Installation
Insulation methods shown are optional
for cold climates, not a requirement for
unit operation.
Batt Insulation
(cut out around
firestop)
Firestop
Ceiling Level
Outer Dome
See Figure 20 on page 15
for clearance information
Termination Cap
Storm Collar
Pan Flashing
Draftstop
Finish Wall
Ledge Bracket
Surround
Gas Access
Outside Air
Cover Plate
Screen
Grate
Firebox
Outside Air Control
FP704CR
Fig. 2 Fireplace and chase parts identification.
4
20001316
D
B
G
H
B
C
E
6 FT.
G
H
A
Chimney Requirements - Offset Installations
OFFSET
RISE
Chimney Flue Exit
Chimney
Section
CR Series Woodburning Fireplaces
FP282
Rise
Offset
Hearth Floor
Example 1 Example 2 Example 3
NOTE: G + H Cannot Exceed 20’
Illustration Key
The following safety rules apply to offset
installations. (The letters correspond with
letters above):
A. Height of the chimney measured from
the hearth to the chimney exit at top:
CR36L/R Series
Maximum: 90’0”
Minimum:
Without elbows 14’ 0”
With 2 elbows 15’ 0”
With 4 elbows 21’ 0”
B. Do not use more than four elbows per
chimney.
Attach the straps of the top elbows to a
structural framing member.
The first elbow of any pair does not have
straps.
Fig. 3 Chimney system requirements.
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Elbow
30°
Return
Elbow
30°
Offset
Elbow
30°
Return
Elbow
30°
Offset
Elbow
SKCS8
Support
FP269CR
C. The chimney cannot be more than 30°
from the vertical plane.
D. The maximum length of the angled run
of the total chimney system is 20 feet. (G
plus H cannot exceed 20 feet)
E. A chimney support (Model SKCS8) is
required every 6 feet of angled run of
chimney. Chimney supports are required
at 30 feet and 60 feet of chimney height
above the hearth also.
Determine the offset distance of your chim
ney arrangement from the centerline of the
fireplace to the centerline of the chimney
where it is to pass through the first ceiling.
NOTE: This offset distance may not be your
full offset distance. See Examples 2 and 3.
30˚ Elbow Offsets
1’
3’ 4’
1¹⁄₂'
0 0 0 0 0 3” 11”
1 0 0 0 0 8¹⁄₄" 20"
0 1 0 0 0 11
2 0 0 0 0 13
1 1 0 0 0 16¹⁄₂" 34¹⁄₄"
0 0 1 0 0 20
2 1 0 0 0 21
0 0 0 1 0 26¹⁄₄" 51¹⁄₄"
0 1 1 0 0 28¹⁄₂" 55¹⁄₄"
1 0 0 1 0 31
0 1 0 1 0 34
0 0 2 0 0 37¹⁄₂" 70³⁄₄"
1 1 0 1 1 41
0 0 1 1 1 45" 83
0 1 2 0 1 47
0 0 0 2 1 51" 94"
0 1 1 1 1 53
0 0 3 0 1 56
0 1 0 2 1 59¹⁄₄" 108¹⁄₂"
0 0 2 1 1 62¹⁄₄" 113¹⁄₂"
0 1 3 0 1 64
0 0 1 2 1 68
0 1 2 1 1 70¹⁄₂" 128"
0 0 0 3 1 74
0 1 1 2 2 78" 140
0 0 3 1 2 81" 146"
0 1 0 3 2 84" 151¹⁄₄"
0 0 2 2 2 87" 156
0 1 3 1 2 89
0 0 1 3 2 93" 166³⁄₄"
0 1 2 2 2 95
0 0 0 4 2 99
0 1 1 3 2 101¹⁄₄" 181³⁄₄"
0 0 3 2 2 104¹⁄₄" 186¹⁄₄"
0 1 0 4 2 107
0 0 2 3 2 110
0 1 3 2 3 114" 203¹⁄₄"
0 0 1 4 3 117
0 1 2 3 3 120" 213
0 0 0 5 3 123
Offset
Chimney
Support
Rise
¹⁄₄" 25¹⁄₄"
¹⁄₂" 29¹⁄₄"
¹⁄₄" 40³⁄₄"
³⁄₄" 43¹⁄₂"
¹⁄₂" 60¹⁄₄”
¹⁄₂" 65¹⁄₂"
¹⁄₂" 77³⁄₄"
³⁄₄"
¹⁄₄" 87¹⁄₂"
¹⁄₄" 98"
¹⁄₄" 103¹⁄₄"
¹⁄₂" 117¹⁄₂"
¹⁄₄" 124"
¹⁄₄" 134¹⁄₂"
³⁄₄"
¹⁄₂"
¹⁄₄" 160¹⁄₄"
¹⁄₄" 170³⁄₄"
¹⁄₄" 177³⁄₄"
¹⁄₄" 191¹⁄₂"
¹⁄₄" 196³⁄₄"
³⁄₄" 209³⁄₄"
¹⁄₂"
³⁄₄" 220"
5
CR Series Woodburning Fireplaces
L
1
L
1
L
T
MODEL SK
2 WALL CHIMNEY
TOTAL
LENGTH
(L
T
)
INSTALLED
LENGTH
(L
1
)
SK81
SK818
SK83
SK84
"
"
"
"
"
"
"
"
2' Min.
2' Min.
3'
Min.
0 To 10'
3'
Min.
0 To 10'
Reference
Point
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.
Mounting the Fireplace
A fireplace may only be mounted on the following
surfaces:
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.
The fireplace must be spaced 3/4 inch from a combustible back wall and 7/16 inch from a combustible
side wall or support. (Fig. 17, Page 12)
Planning the Chimney Run
Determine how the chimney will be run, length of run
and chimney components required to complete the
job. (Fig. 3) Never install a chimney below minimum
heights.
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. 5)
The key points of the “Ten Foot Rule” are:
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.
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’ (914mm) in height above the
highest point where it passes through the roof.
Fig. 4 Installed lengths of chimney sections.
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 necessary to offset it to avoid obstructions.
4. The maximum length of an angled run (total chim
-
ney 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 extending more than 6’ (1.8m) above a roof line.
6
AC246
Fig. 5 Ten Foot Rule illustration.
Chimney Supports
The chimney system is supported by the fireplace for
vertical chimney heights less than 20’ (6m) above the
hearth. Chimney supports are required if the vertical
height exceeds 20’ (6m). Locate chimney supports
at ceiling holes or other structural framing at 20’ (6m)
heights. Spacing between chimney supports must not
exceed 20’ (6m). Use Chimney Support Model SKCS8
for SK8 chimney, and Model 11CS for 11CF chimney.
(Note: the chimney support can not be mounted
directly to the fireplace.) Support provided by elbow
straps fulfills the support requirement only if they are
spaced as previously described. (A chimney support is
2¹⁄₂" (64mm) long when installed.)
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Angled chimney runs require a support every 6’ (1.8m)
in addition to the elbow straps. Chimney supports are
used for this function. (Fig. 6)
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 4, Fig. 2)
If you need help in determining fireplace location or
how the chimney system should be run, contact your
Majestic Fireplaces dealer for assistance.
Chimney
Support
Strap
SKCS8
FP284
Fig. 6 Chimney support installation.
CR Series Woodburning Fireplaces
Installation
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 non-combustible 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. 7)
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 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. 2)
When installing the chimney,
between 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 REQUIRED AIR SPACES ARE
MAINTAINED. (Page 12, Fig. 17)
DO NOT caulk
20001316
7
CR Series Woodburning Fireplaces
Framing
Framing can be constructed before or after the fireplace is set in place, however, most installers build the
frame before setting the fireplace.
Frame fireplace with 2 x 4 lumber or heavier materi
als. Refer to framing dimensions in Figures 1 or 2 for
basic fireplace specifications. Headers and support
studs must be turned on end as illustrated in Figure 2,
Page 4.
NOTE: Framing should be positioned to accommodate wall covering and fireplace facing material.
Hard, Flat
Surface
-
ance requirements for side and parallel combustible
walls as noted in Figure 20, Page 15.
Offset Installation
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.
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.
Determine offset distance of your chimney arrange
ment from centerline of fireplace to centerline of chimney where it is to pass through ceiling.
Locate center point of the chimney on ceiling as
though a straight up chimney arrangement is to be
used. Measure your offset dimension from the chimney center point on the ceiling.
-
Insulation
Platform
FP555CR
Fig. 7 Insulation between platform and fireplace.
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.
CAUTION: REPORT TO YOUR DEALER ANY
PARTS DAMAGED IN SHIPMENT, SPECIFICALLY
CHECK THE END CONNECTION OF CHIMNEY
SECTIONS AND ELBOWS.
Straight-Up Chimney Installation
Chimney Centerline
Actual Centerpoint
10³⁄₈”
(264mm)
Plumb Line
Plumb Bob
Imaginary Centerpoint
To locate the centerline of the flue put the fireplace in
final position and place a plumb bob from the ceiling to
the center of the fireplace flue collar. Mark this spot on
the ceiling. Draw a line through that mark to either side
of the firebox and indicate dimension X to locate the
side wall framing. (Fig. 8) Be sure to observe clear-
8
FP556CR
Fig. 8 Locate centerline of chimney with plumb line.
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