Installation - Preway BI28B Installation, Service Instructions & Parts

installation

Installation
of installation, etc. and lay-
"", on floor.
Frame cavi!), (closet) or opening for fireplace.
Prepare floor by installing hearth extension and
platform, if desired. Place metal strips (provided)
under fireplace and extending out to where it
will be under hearth also. (See Fig. I.) This will
prevent any sparks from reaching the floor.
P l a c e iNreplace i n p o s i t i o n . Attach e l b o w or
pipe ruses through ioist area. use
b o x e d . (See Fit. 11.1
Frame around fireplace sides and up to ceiling
add sections of pipe as you frame.
If triple wall p,pe sect,",, g o e s t h r o u g h f r a m e d
opening in ceiling, instali fIrestop spacer by slid-
ing up over triple wall pipe section and nailing
If an offset is needed to miss a joist or beam, use
below.
To Install Elbows
Maintain inch minimum clearance to combustibles
for sections located above the joist area where the
fireplace is located. Maintain 3 inch clearance to
combustibles for sections located directly above the
fireplace (See Figure 6).
1. Place elbow (without straps) on vertical triple wall
2 . T o .ichievc minimum
e l b o w wit/? screws provided. To a&eve further
offset, you may install various iengths of triple
wall pipe between the elbows to a maximum
length of 15 feet. (This must be supported with
straps every 6 feet.) (See Back Page.)
IMPORTANT: If gas line or outside combustion
air is to be built in to fireplace - install it before
framing in fireplace.
Frame ,w"rk around the fireplace (either in flush or
book shelves. wood bins, closets, etc.
they WIII extend.
When the fireplace is installed on a combustible
floor, a non-combustible hearth extension mus+ be
used +" prorect the floor in front of the opening. (See
Chart on Page 2 for proper dimensions.)
t r i p l e
o f f s e t , (ice chart on b;lrk
The fireplace may be placed on a platform in order
i n g . C A U T I O N - Do not block off air opening at
bottom of fireplace.
The Hearth Extension must extend at least 16" in
front of and at least 8" beyond each side of the fire-
place opening for the 8128 and 6136 and 20" in front,
each side of the fireplace opening for the 8142.
Use Preway Hearth Extension Yl3917 for 28". Y13259
for 36" and Yl3560 for the 42" fireplace. The Hearth
Extension may be covered with non-combustible ma-
terials which do not ignite and burn. These are steel,
iron, brick, tile, concrete, slate, asbestos, glass or
plaster or any combination
Chimney Enclorures
' I R E S T O P -
ENCLOSURES
FLOOR AND
FIRST JOIST
CHASE FRAMING
Use only four elbows per installation and
NOTE:
never over 30" maximum. Elbow may
be used directly on fireplace.
4
INSET FRAMING