15
Heatilator • Birmingham BIR50-B Installation Manual • 4059-701 • Rev G • 06/29/15
4
Chimney and Termination Installation
NOTICE:
Chimney performance may vary.
• Trees, buildings, roof lines and wind conditions affect
performance.
• Chimney height may need adjustment if smoking or
overdraft occurs.
A. Chimney Requirements
Measure vertical distances from the base of the fireplace.
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 fire.
Feet
Meters
• Minimum overall straight height
18
5.49
• Minimum height with offset/return
18.5
5.64
• Maximum height
50
15.24
• Maximum chimney length between an offset
and return
20
6.10
• Maximum distance between chimney
stabilizers
25
7.62
• Maximum unsupported chimney length
between the offset and return
6
1.83
• Maximum unsupported chimney height above
the fireplace
25
7.62
• Maximum unsupported chimney above roof
6
1.83
• Minimum height with double offset/return
22.5
6.86
Height of Chimney Components
in.
mm
Stabilizer
14DCA-ST
Firestop
14DCA-FS
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-CTC - Chase Top Collar
14DCA-VC - Chimney Cap
14DCA-SC - Storm Collar
14DCA-WS - Wall Strap
Chimney Sections*
14DCA-12
10 1/2
267
14DCA-18
16 1/2
419
14DCA-36
34 1/2
876
14DCA-48
46 1/2
1181
* Dimensions reflect effective height.
Table 4.1
