Hearth and Home Technologies BIR50-B owner manual Chimney Assembly, Chimney Requirements

8Chimney 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.

		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		20	6.10
	and return
• Maximum distance between chimney stabiliz-		25	7.62
	ers
• Maximum unsupported chimney length be-		6	1.83
	tween the offset and return
• Maximum unsupported chimney height above		25	7.62
	the fireplace
•	Maximum unsupported chimney above roof	6	1.83

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.

Table 8.1

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.

Heatilator • Birmingham BIR50-B • 4059-682C• 8/12 23