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The chimney may incorporate an
offset. To do this safely, all
sections of listed connector, offset
elbows and chimney section must
be screwed together by at least
three sheet metal screws per joint.
The chimney must be suitably
supported by the chimney
manufacturer's listed offset
support. All vent manufacturer or
national re code clearances to
combustible must be observed.
Combustibles in
front of the unit
Figure 5: T4 residential venting.
ALT 4-LE 040523-28
Follow chimney manufacture specifcations for
distance between vent termination heigth and
chimney at roof line. Also consult local building
regulations.
Minimum 7' [2.1m]
Ceiling Height
56" [1.42m]
Minimum
48"
[1.2 m]
Non-combustible
Ember Protector
* 4" (102 mm) diameter air inlet
with rodent screen.
* If the crawl space is well ventilated
it is not necessary to extend air inlet
to outside.
Listed
Insulated
Chimney
Storm collar
as per Local
and Federal
codes
Chimney
12" [300mm]
connector
Minimum rst
section of pipe
17
Spark arrester
rain cap
Roof
ashing
Chimney Support
Wall Thimble
Alternate up and
out installation
*
*
Unit may be harder
to start. Please provide
as much vertical length
for the rst section
of pipe as possible
4" diameter hooded
or 90 elbow
air inlet
turned down
with
rodent screen.
100003978
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