A. Chimney Requirements

Measure vertical distances from the base of the ﬁreplace as shown in Figure 8.2.

•	Minimum overall straight height	16.5 ft	(5.03 m)
•	Minimum height with offset/return	16.5 ft	(5.03 m)
• Maximum height		90 ft	(27.43 m)
• Maximum chimney length between an offset		20 ft	(6.1 m)
	and return
• Maximum distance between chimney		35 ft	(10.67 m)
	stabilizers
•	Double offset/return minimum height	20 ft	(6.1 m)
• Maximum unsupported chimney length		6 ft	(1.83 m)
	between the offset and return
• Maximum unsupported chimney height above		35 ft	(10.67 m)
	the ﬁreplace
• Maximum unsupported chimney above roof		6 ft	(1.83 m)

WARNING! Risk of Fire! You must maintain 2 in. (51

mm)air space clearance to insulation and other combus- tible materials around the chimney system. Failure to do so may cause overheating and ﬁre.

Table 8.1

Determine the chimney components needed to complete your particular installation:

•Measure the total vertical height of the fireplace installation from the base of the ﬁreplace assembly to the approximate location of the bottom of the termination cap.

•Subtract the effective height of the ﬁreplace 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 identiﬁes those components and where used.

•Install a ceiling ﬁrestop whenever the chimney penetrates a ﬂoor/ceiling.

NOTICE: A maximum of two pairs of offsets and returns may be used.

CAUTION! Risk of Fire and/or Asphyxiation! DO NOT connect this ﬁreplace to a chimney ﬂue servicing another appliance. DO NOT connect to any air distribu- tion duct or system. These actions could cause over- heating/ﬁre in the chimney ﬂue, or release of exhaust fumes into the living areas.

HEIGHT OF CHIMNEY COMPONENTS		in.	mm
Chimney Stabilizer
	SL3	4-3/4	121

Ceiling Firestops
	FS338	0	0
	FS339	0	0

	FS340	0	0
Offsets/Returns
	SL315	13-3/8	340
	SL330	15-1/2	394
Roof Flashing
	RF370	0	0
	RF371	0	0

Chimney Sections*
	SL306	4-3/4	121
	SL312	10-3/4	273

	SL318	16-3/4	425
	SL324	22-3/4	578
	SL336	34-3/4	883

	SL348	46-3/4	1187
* Dimensions reﬂect effective height.

20 ft (6.10 m) max. pipe between an offset & return

Ceiling firestop

41-1/4 in.

(1048 mm)

Effective

Height

6 ft (1.83 m) max. unsupported chimney above roof

35 ft (10.7 m) max. straight unsupported chimney height

16.5ft (5.03 m) min. height/single offset-return 20 ft. (6.10 m) min. height/double offset-return

90 ft (27.4 m) max. height

Figure 8.2 Chimney Requirements

Heat & Glo • EM-415, EM-485 • 33056 • Rev V • 05/08