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7

SHR Series  Woodburning Fireplaces

20001384

Planning Information

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)

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 that is 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.

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 degrees

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 feet.

5. No more than 2 offsets (4 total 30˚ elbows in) per

fireplace may be used.

6. A guy wire stabilizer is required for chimneys extend-

ing more than 6 feet above a roof line.

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 combus-
tible back wall and 3/4 inch from a combustible side

wall or support. (Fig. 20, Page 14)

Planning the Chimney Run

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.

Fig. 7  Installed lengths of chimney sections.

FP288b

L1

L1

LT

11CF 

Chimney

Model No.

Total

Length 

(LT)

Installed

Length

(L1)

11CF1
11CF18
11CF3
11CF4

11¹⁄₂

"

17¹⁄₂

"

35¹⁄₂

"

47¹⁄₂

"

10¹⁄₂

"

16¹⁄₂

"

34¹⁄₂

"

46¹⁄₂

"

AC246

Fig. 8  Ten Foot Rule illustration.

2’ Min.

2’ Min.

3’

Min.

0 To 10’

3’

Min.

0 To 10’

Reference
Point

Summary of Contents for SHR36

Page 1: ...ls SHR36 SHR42A SHR48 SHR52 Underwriter s Laboratories Report No MH6018 DO NOT DISCARD THIS MANUAL Retain for future use 20001384 7 04 Rev 13 410 Admiral Blvd Mississauga Ontario Canada L5T 2N6 905 67...

Page 2: ...CFM Spe cialty Home Products in combination or assembly with a Majestic Fireplaces fireplace system notwithstanding any independent testing laboratory or other third party ap proval of such component...

Page 3: ...ine Access Gas Line Access 1365mm FP546A Fig 2 SHR42A Series specifications and framing SHR42A Series Woodburning Fireplace 36 914mm 46 1175mm 44 1118mm 24 610mm 7 189mm 13 Dia 340mm Rough Opening Wid...

Page 4: ...Access Gas Line Access 1518mm SHR48 Series Woodburning Fireplace Fig 3 SHR48 Series specifications and framing FP545A 9 235mm 52 1321mm 62 1584mm 52 1334mm 33 838mm 7 189mm 13 Dia Rough Opening Width...

Page 5: ...ion FP554A Fig 5 Fireplace and chase parts identification SHR48 shown Termination Cap Storm Collar Pan Flashing Batt Insulation cut out around firestop Firestop Ceiling Level Draftstop Ledge Bracket S...

Page 6: ...measured from the hearth to the chimney exit SHR36 SHR42A SHR48 SHR52 Max 90 90 90 90 Min 0 Elbows 14 6 14 6 16 0 16 0 2 Elbows 15 6 15 6 19 0 19 0 4 Elbows 21 0 21 0 24 0 24 0 B Do not use more than...

Page 7: ...nation 2 A chimney cannot be offset more than 30 degrees 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 ang...

Page 8: ...ation or how the chimney system should be run contact your Majestic Fireplaces dealer for assistance Insulating Fireplace Enclosure for Cold Climates If you live in a cold climate it is not required b...

Page 9: ...he fireplace 3 Slide the rear firebrick back into the left corner behind the end of the left firebrick Push both panels back as far as possible into the left side and corner 4 Swing the right side of...

Page 10: ...30 Offset Elbow table on Page 6 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 sec...

Page 11: ...le 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 1 inches wide and equal in length to the metal strips...

Page 12: ...ers provide minimum required air space to chimney pipe for ceiling thickness up to eight 8 inches When combined thickness of ceiling material ceiling joists and flooring material exceeds eight 8 inche...

Page 13: ...the installation manual provided with the termination cap Locate Chimney Centerpoint on Roof Use same procedure detailed in locating center point of the flue system Drive a nail up through roof at the...

Page 14: ...n the front standoffs that may be used to attach finish material Fig 23 Finish Wall Finish the wall with material of your choice Do not install a combustible mantel shelf less than 12 305mm from the t...

Page 15: ...5mm min 1 6 159mm Min 1 FP531 Fig 22 Mantel clearance Header Must be sealed with noncombustible material Surround Face Finished Wall Ledge Bracket Finished Wall Ledge Bracket Combustible Mantel and Tr...

Page 16: ...Not Place Finishing Material Beyond These Edges or Cover Air Inlets Screen Rail Hearth FP1168 Fig 26 Finishing front of fireplace MA81 Fig 27 Combustible mantel clearances 1 Ref Combustible materials...

Page 17: ...resistance Rt value of the alternate material employed is greater than or equal to R 1 09 Thermal resistance R or thermal conductiv ity K may be obtained from manufacturer of the material Factors are...

Page 18: ...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 facin...

Page 19: ...pecialty Home Products fireplaces Be sure to have the appliance installed in accordance with building codes Gas connection may enter from either left or right side of the fireplace Locate appropriate...

Page 20: ...05299 4 Screen Rod two per fireplace 7554181 7554199 20001428 20002790 5 Screen two per fireplace 7554295 20001723 20001723 20005278 6 Screen Pull two per fireplace 5584139 5584139 5584139 5584139 7 P...

Page 21: ...lable from your local Majestic Fireplaces distributor Should you need additional information beyond what your distributor can furnish contact CFM Specialty Home Products 410 Admiral Blvd Mississauga O...

Page 22: ...roof Flashing not included For use with Vermont Castings Majestic Products Type 11CF Chimney Systems Used to terminate chimney at top of chase Adapter kit included Flashing not included Used to build...

Page 23: ...ject 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 F...

Page 24: ...CFM Specialty Home Products 410 Admiral Blvd Mississauga Ontario Canada L5T 2N6 905 670 7777 www majesticproducts com www vermontcastings com CFM Specialty Home Products...

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