Measuring Standards; Use Of Flex Vent - HEAT GLO SL-3X Installation Manual

E. Measuring Standards
Vertical and horizontal measurements listed in the vent
diagrams were made using the following standards:
• Pipe measurements are shown using the effective length
of pipe. See Section 12.A for information on effective
length of pipe components.
• Horizontal terminations are measured to the outside
mounting surface (fl ange of termination cap) (see Figure
4.6).
• Vertical terminations are measured to top of last section
of pipe. See Figure 4.7.
• Horizontal pipe installed level with no rise.
Figure 4.6 Measure to Outside Mounting Surface
Figure 4.7. Measure to Top of Last Section of Pipe
20 Heat & Glo • SL-3X, SL-5X, SL-7X, SL-9X Installation Manual • 2372-980 Rev. C • 8/16
MEASURE TO SHADED SURFACE
(OUTSIDE MOUNTING SURFACE)
F. Use of Flex Vent
The fl ex vent must be supported with the spacing between
support intervals not exceeding 4 feet, with no more than
1/2 inch sag between supports.
A support is required at each change in venting direction,
and in any location where it is necessary to maintain the
necessary clearance to combustibles. A simple "up and
out" installation (Figure 4.8) requires only enough support
to maintain the necessary clearance to combustibles.
However, the vent attachment point and the fi restop loca-
tion are considered to be supports.
3 in. CLEARANCE
FLEX-VENT
Figure 4.8 Flex Vent Pipe - Generic Fireplace Shown
TERMINATION
CAP
1 in.
CLEARANCE