Detroit Radiant Products Company HLV Series - Manual (Page 32)

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HLV Series 3.0 Installation • Venting Requirements
Figure 3.18 • Horizontal Flue Venting (Preferred)
Figure 3.19 • Vertical Flue Venting
Horizontal venting must slope
downward 1/4 inch per foot.
Isolation Boot
Vacuum Pump
*It is recommended to
extend at least 24 in.
past building to avoid
potential building
discoloration.
A storm collar is
recommended to
prevent drippage
back flow.
Condensate trap assembly.
(Not required on horizontal
venting unless specified or
local codes require such).
Adhere to local codes for
condensate disposal.
Isolation Boot
Condensate trap assembly
Where required. (P/N: V-CT)
Adhere to local codes
for condensate disposal.
24” Min.**
** Consult the NFPA ANSI Z223.1 Gas Vent
Termination Criteria if roof pitch exceeds 9:12
24”*