W415-1501 / 05.15.15
16
EN
* The fi rst fl ue offset closest to the top of the appliance must be a minimum distance of 12” (304.8mm)
from the top of the appliance.
1.
Move the appliance into position. Try to center the exhaust fl ue of the appliance,
midpoint between two joists to prevent having to cut them. Use a plumb bob to
line up the centre.
2.
Cut and frame an opening in the ceiling to provide a
minimum clearance of 2” (50.8mm) between the
outside of the chimney and any combustible material.
DO NOT FILL THIS SPACE WITH ANY TYPE OF
MATERIAL!
Nail headers between the joists for extra
support. Firestop spacers must be placed on each
framed opening in any fl oor or ceiling that the chim-
ney passes through.
3.
Hold a plumb bob from the underside of the roof
to determine where the opening in the roof should
be. Cut and frame the roof opening maintaining
proper 2” (50.8mm) clearances.
NOTE: 30° or 45° offsets may be installed back to
back.
63.5A
15 FT
(4.6m)
MINIMUM
34 FT
(10.4m)
MAXIMUM
RAIN CAP
RAIN CAP
RAIN CAP
STORM COLLAR
ROOF FLASHING
STORM COLLAR
ROOF FLASHING
STORM COLLAR
ROOF FLASHING
ATTIC INSULATION
SHIELD
ATTIC INSULATION
SHIELD
ATTIC INSULATION
SHIELD
CEILING RADIATION
SHIELD
OFFSET
SUPPORT
OFFSET
SUPPORT
FIRESTOP
FIRESTOP
12” (304.8mm)
MIN*
15 FT
(4.6m)
MINIMUM
34 FT
(10.4m)
MAXIMUM
12” (304.8mm)
MIN*
15 FT
(4.6m)
MINIMUM
34 FT
(10.4m)
MAXIMUM
2"
(50.8mm)
Min.
Typical Roof Joist Framing
Typical Joist Framing
2"
(50.8mm)
Min.
2" (50.8mm)
Min.
2"
(50.8mm)
Min.
STRAIGHT CHIMNEY
SINGLE OFFSET
CHIMNEY
DOUBLE OFFSET
CHIMNEY
HEADERS
FIRESTOP SPACER -
UNDERSIDE OF JOIST
4.2 TYPICAL CHIMNEY INSTALLATION