Hearth and Home Technologies BIR50-B - Manual (Page 23)

23
8
Chimney Assembly
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 stabiliz-
ers
25 7.62
• Maximum unsupported chimney length be-
tween 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
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 8.1
Heatilator • Birmingham BIR50-B • 4059-682D• 9/12