Quadra-Fire 7100FP-NL-B 7100FP EPA Woodburning Fireplace, F. Install the Ceiling Firestops

R

7100FP EPA Woodburning Fireplace

WARNING

Fire Risk

•The flex hose must never be compressed or deformed!

Restricting the airflow inside the flex pipe may increase flue pipe temperatures causing a chase fire.

Wire Ties

4" Flex

Wire Ties

Figure 24.1 Installing Flex Pipe

F. Install the Ceiling Firestops

•Mark and cut an opening in the ceiling for the ceiling firestop being used. See Figure 24.2.

•Frame the opening with the same size lumber used in the ceiling joists.

•Install the firestop spacer.

These firestop spacers are designed to provide the minimum 2 in. (51 mm) air space required around the chimney. In all situations, the firestop spacers are to be nailed to the ceiling joists from the bottom or fireplace side, EXCEPT when the space above is an insulated ceiling or attic space. In this situation, the firestop spacer must be nailed from the top side to prevent loose insula- tion from falling into the required 2 in. (51 mm) air space around the chimney.

NOTE: See Figures 25.1 and 25.2 on page 25.

Note: The ceiling firestop MUST be nailed to the bottom of the ceiling joists EXCEPT when the space above is uninsulated and the attic insulation shield is not being used (see Figure 24.2). When the attic insulation shield is used the ceiling firestop may be above or below the joist of an insulated ceiling.

ROOM ABOVE (non-insulated ceiling)

B

A

Ceilng firestop
attached to bottom
of framing	2 in. (51mm)
	clearance
ATTIC ABOVE (insulated ceiling)
Ceiling firestop	When attic insulation
attached to top of
	shield not used
framing

2 in. (51mm)

clearance

Note: Use same dimensional lumber for framing ceiling firestop and joists.

		A			B
Catalog #	in.		mm	in.		mm
FS338	14-1/2		368	14-1/2		368
FS339	14-1/2		368	18-3/8		467
FS340	14-1/2		368	23		584

Figure 24.2 Installing the Ceiling Firestop

Note: You must provide support for the pipe during construction and check to be sure inadvertent loading has not dislodged the chimney section from the fireplace or at any chimney joint.

CAUTION

•Ceiling firestops must be used at ceiling/floor.

•Chase construction requires ceiling firestops at each floor or every 10 ft (3.05 m) of clear space.

•Use same dimensional lumber as joists.

Ceiling firestop slows spread of fire and reduces cold air infiltration.

Page 24 433-1390D September 7, 2007