
13
Vermont Castings Stratton
30004508
pipe is firmly snapped and locked together as each
pipe section is mounted.
When installing elbows, only the outer pipe will snap-
lock. Middle pipes simply slide into position. Be sure to
always attach straps on the upper elbow to a structural
framing member. (Fig. 19)
Continue installing the pipe as required until pipe is in-
stalled through the ceiling. At this point, you must install
a firestop spacer.
FP270/271
CR Series
2/19/99 djt
Support Structure
Ceiling Hole
Framing
Elbow Strap
(must be tight)
elbow Strap
angled Strap
Angled Firestop
Chimney Support Strap
(must be tight)
FP70/71
Fig. 19
Attach straps to a structural framing member.
UP
FP1566
EWF Pipe install
Circulating models
3/05 djt
Pipe Section
Pipe
Rim
Hem
Lance
Pipe
Hem
FP1566
Fig. 18
Install pipe, listening for the snap-lock to fasten.
installing the Firestop Spacer
in the ceiling hole
A firestop spacer is used to keep pipe spaced properly
and is required for safety.
Nail the firestop spacer (at each corner) to the framing
members of the ceiling hole.
NoTe:
A firestop spacer
is not required at the roof.
Hole sizes listed in Figure 11 for angled firestop spac-
ers provide minimum required air space to chimney
pipe for ceiling thickness up to 8” (03 mm). When the
combined thickness of ceiling material, ceiling joists
and flooring material exceeds 8” (03 mm), adjustments
must be made in framing to assure that minimum air
spaces to the chimney are maintained.
proper Firestop Spacer installation
Figure 0 shows different installation procedures for
both an area that
is
an attic and an area that
is not
an
attic.
If the area above the ceiling
is not
an attic, position the
firestop spacer on the ceiling side and the angled por-
tion extending up into the hole.
If the area above the ceiling
is
an attic, position the
firestop spacer on the top of the framed hole and the
angled portion extending down into the hole.
Firestop spacers are not available for, nor are they
required on vertical walls.
Do NoT
put any sealant around the area where the
outer pipe slides through the firestop spacer. If you seal
this area,
it may cause a fire hazard.
FP593
SR/C
11/20/97
Nails (4)
attic installation
Joist
Firestop Spacer
Joist
Firestop Spacer
Nails (4)
ceiling installation
FP593
Fig. 20
Firestop spacer installations.
canadian Requirements
for insulation Shield
In Canada, an attic insulation shield is required to pre-
vent attic insulation from contacting the chimney sec-
tion. Framing dimensions for the chimney hole should
measure 14
Z\x
” x 14
Z\x
” (368 x 368 mm). An attic shield
MUST be installed on top of attic joists (above the floor
level). (Fig. 1)
caUTioN: in the U.S., it is a good idea, although not
always required, to install an attic insulation shield
when blown-in insulation is to be used in the attic.