Chimney Requirements - Heatilator BIR50 Owner's Manual

A. Chimney Requirements
Measure vertical distances from the base of the fi replace.
• Minimum overall straight height
• Minimum height with offset/return
• Maximum height
• Maximum chimney length between an offset
and return
• Maximum distance between chimney
stabilizers
• Maximum unsupported chimney length
between the offset and return
• Maximum unsupported chimney height above
the fi replace
• Maximum unsupported chimney above roof
WARNING! Risk of Fire! You must maintain 2 in. (51 mm)
air space clearance to insulation and other combustible
materials around the chimney system. Failure to do so may
cause overheating and fi re.
Table 8.1
Height of Chimney Components
Stabilizer
14DCA-ST
Firestop
14DCA-FS
Roof Flashing
RF-1470
Elbows
14DCA-E15 - 15° Elbow
14DCA-E30 - 30° Elbow
Miscellaneous
14DCA-ES - Elbow Strap
14DCA-SS - Supplementary Support
14DCA-IS - Insulation Shield
14DCA-RRS - Roof Radiation Shield
14DCA-CTF - Chase Top Flashing
14DCA-VC - Chimney Cap
14DCA-SC - Storm Collar
14DCA-WS - Wall Strap
Chimney Sections*
14DCA-12
14DCA-18
14DCA-36
14DCA-48
* Dimensions refl ect effective height.
24
Feet Meters
18 5.49
18.5 5.64
50 15.24
20 6.10
25 7.62
6 1.83
25 7.62
6 1.83
in. mm
10 1/2 267
16 1/2 419
34 1/2 876
46 1/2 1181
Heatilator • Birmingham BIR50 • 4059-332 Rev F • 11/08
Determine the chimney components needed to complete
your particular installation:
• Measure the total vertical height of the fi replace installation
from the base of the fi replace assembly to the approximate
location of the bottom of the termination cap.
• Subtract the effective height of the fi replace assembly (see
Figure 8.2) from the total vertical height to determine the
overall height of the chimney installation.
• Create a schematic for your application similar to Figure
8.2 showing components required (referring to Table 8.1).
Figure 8.1 identifi es those components and where used.
• Install a ceiling fi restop whenever the chimney penetrates
a fl oor/ceiling.
NOTICE: A maximum of one offset and return may be
used.
CAUTION! Risk of Fire and/or Asphyxiation! DO NOT
connect this fi replace to a chimney fl ue servicing another
appliance. Do NOT connect to any air distribution duct
or system. These actions could cause overheating/fi re
in the chimney fl ue, or release of exhaust fumes into the
living areas.
Termination
Cap
Storm
Collar
Chase Top
Flashing
74 1/8 in.
(1883 mm)
Effective
Height
Figure 8.2
Chase Top
Collar
(4) Roof
Radiation
Shields
Chimney Section
Attic Insulation
Shield & Collar
Square Frame
Firestop
Chimney
Square Frame
Firestop