Vermont Casting 647 BFC Installing the Chimney System, Installing the Firestop Spacer, 7412647

Installing the

Chimney System

Start by attaching the first chimney section to the collar on top of the fireplace.

Install the pipe as pictured in Figure 14. When you get a good lock, you will hear the pipe clearly snap together. Once sections are snap-locked in place, it is extremely difficult to get them apart. Make sure the pipe is firmly snapped and locked together as each pipe section is mounted.

When installing elbows, only outer pipe will snap- lock. Middle pipes simply slide into position. Be sure to always attach straps on upper elbow to a structural framing member. (Fig. 15)

Continue installing the pipe as required until pipe is installed up through the ceiling. At this point, you must install a firestop spacer.

BFC36 Balance Flue Heat-Circulating Fireplace

Pipe Section

Pipe

Rim

Hem

Lance

Pipe

Hem

FPC558a

Fig. 14 Install pipe, listening for the snap-lock to fasten.

	Installing the Firestop Spacer
				Elbow Strap			Support Structure
	in the Ceiling Hole
A firestop spacer is used to keep pipe spaced properly
and required for safety.
Nail the firestop spacer (at each corner) to the framing								Elbow Strap
members of the ceiling hole. NOTE: A firestop spacer								(must be tight)
is not required at the roof.
Hole sizes listed in Figure 11 for angled firestop spac-											Ceiling
											Hole Fram-
ers provide minimum required air space to chimney					Angled Strap						ing
pipe for ceiling thickness up to 8” (203mm). When
combined thickness of ceiling material, ceiling joists
and flooring material exceeds 8” (203mm), adjustments
must be made in framing to assure that minimum air										Angled Firestop
spaces to chimney are maintained.
	Proper Firestop Spacer Installation			FP270/271					Chimney Support Strap
									(must be tight)
Figure 16 shows different installation procedures for
				Fig. 15 Attach straps to a structural framing member.
both an area that is an attic
and	an area that is not an
attic.		Attic Installation				Ceiling Installation
If the area above the ceil-				Nails (4)
ing is not an attic, position
											Joist
the firestop spacer with the
			Firestop
flange on the ceiling side
and the angled portion ex-			Spacer
tending up into the hole.											Firestop
If the area above the ceiling					Joist						Spacer
is an attic, position the fire-
stop spacer with the flange
on the top of the framed											Nails (4)
hole and the angled portion
extending down into the											FP593
hole.
	Fig. 16 Installing firestop spacer.

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