Heat & Glo LifeStyle BAY-40 A. Chimney Requirements, Fire Risk, Offsets/Returns, Roof Flashing

A. Chimney Requirements

Vertical distances are measured from the base of the fire- place as shown in Figure 5.2.

•	Minimum overall straight height	14	(4.27 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)

To determine the chimney components needed to complete your particular installation, follow the steps below:

•Determine the total vertical height of the fireplace installation. This dimension is measured from the base of the fireplace assembly to the point where the smoke exits the termination cap.

•Subtract the effective height of the fireplace assembly from the overall height of the fireplace installation (measured from the base of the fireplace to the bottom of the termination cap).

•Refer to Table 5.1 to determine what components must be selected to complete the fireplace installation.

•Determine the number of ceiling firestops, stabilizers, roof flashing, etc. required to complete the fireplace installation.

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

WARNING

Fire Risk

•Must maintain 2 in. (51 mm) air clearance to insulation and other combustible materials.

Table 5.1

HEIGHT OF CHIMNEY COMPONENTS		in.	mm
Chimney Stabilizer
	SL11	4-3/4	121
Ceiling Firestops
	FS538	0	0
	FS540	0	0

6 ft (1.8 m) max. unsupported run

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

Ceiling Firestop

44in.

(1118 mm) Effective Height

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

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

13.25ft (4.04 m) min. height/single offset-return 20 ft. (6.10 m) min. height/double offset-return

90 ft (27.4 m) max. height

Offsets/Returns
	SL1130	18	457
Roof Flashing
	RF570	0	0
	RF571	0	0
Chimney Sections*
	SL1106	4-3/4	121
	SL1112	10-3/4	273
	SL1118	16-3/4	425
	SL1136	34-3/4	883
	SL1148	46-3/4	1187
* Dimensions reflect effective height.

Figure 5.2 Chimney Requirements

CAUTION

•Do NOT connect this fireplace to a chimney flue servicing another appliance.

•Do NOT connect to any air distribution duct or system.

Heat & Glo • Multi-Sided Woodburning Fireplace • 34977 Rev T • 11/07 17