74
Appendix D - HeatShift™
Y
Vertical Rise
X
Max. Allowable
Horizontal
Offset
42”
48”
48”
60”
54”
72”
60”
84”
66”
96”
12’-0”
96” Max.
Min. 2-1/2”
clearance
to ceiling
from top of
opening
Min. 1”
clearance to
combustibles
around pipes
Support horizontal
sections of pipe using
strapping every 24”
DO NOT RUN
pipe horizontal.
Minimum slope 4:12
Min. bend
radius
4”
4”
4
12
Vertical Rise
‘Y’
(Min. 42”
Max. 12’-0”)
Maximum allowable Horizontal Offset
‘X’
(offset for take-off
that’s furthest away)
Ceiling
LDK 8
+
Min. bend
radius
+
Top of fireplace
Allowable Rise and O
set