A. Chimney Requirements
Measure vertical distances from the base of the fireplace.
Determine the chimney components needed to complete your particular installation:
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| Feet | Meters | • Measure the total vertical height of the fireplace installation |
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| from the base of the fireplace assembly to the approximate | ||
• Minimum overall straight height | 18 | 5.49 | location of the bottom of the termination cap. | |
• Minimum height with offset/return | 18.5 | 5.64 | • Subtract the effective height of the fireplace assembly (see | |
• | Maximum height | 50 | 15.24 | Figure 8.2) from the total vertical height to determine the |
• Maximum chimney length between an offset | 20 | 6.10 | overall height of the chimney installation. | |
| and return |
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| • Create a schematic for your application similar to Figure |
• | Maximum distance between chimney | 25 | 7.62 | 8.2 showing components required (referring to Table 8.1). |
| stabilizers |
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| Figure 8.1 identifies those components and where used. |
• Maximum unsupported chimney length | 6 | 1.83 | • Install a ceiling firestop whenever the chimney penetrates | |
| between the offset and return |
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| a floor/ceiling. |
• Maximum unsupported chimney height above | 25 | 7.62 | NOTICE: A maximum of one offset and return may be | |
| the fireplace |
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• | Maximum unsupported chimney above roof | 6 | 1.83 | used. |
WARNING! Risk of Fire! You must maintain 2 in. (51 mm) | CAUTION! Risk of Fire and/or Asphyxiation! DO NOT | |
connect this fireplace to a chimney flue servicing another | ||
air space clearance to insulation and other combustible | ||
appliance. Do NOT connect to any air distribution duct | ||
materials around the chimney system. Failure to do so may | ||
or system. These actions could cause overheating/fire | ||
cause overheating and fire. | ||
in the chimney flue, or release of exhaust fumes into the | ||
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| living areas. |
Table 8.1
Height of Chimney Components | in. | mm | |
Stabilizer |
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Firestop |
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Roof Flashing |
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Elbows |
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Miscellaneous |
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Chimney Sections* |
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| 10 1/2 | 267 | |
| 16 1/2 | 419 | |
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| 34 1/2 | 876 | |
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| 46 1/2 | 1181 | |
* Dimensions reflect effective height. |
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Termination | Chase Top | |
Cap | ||
Collar | ||
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Storm | (4) Roof | |
Collar | ||
Chase Top | Radiation | |
Shields | ||
Flashing | ||
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| Chimney Section | |
| Attic Insulation | |
| Shield & Collar | |
| Square Frame | |
| Firestop | |
| Chimney | |
| Square Frame | |
| Firestop | |
74 1/8 in. |
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(1883 mm) |
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Effective |
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Height |
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Figure 8.2 |
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24 | Heat & Glo • |
