Desa (V)DVF36 - Manual (Page 18)

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Venting with Two 90° Elbows
Vertical (V) Horizontal (H
1
) +
Horizontal (H )
5' min. ' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
0' max. 8' max.
Figure 29 - Vertical Rigid Venting
Configuration Using Two 90° Elbows
with Two Horizontal Runs
Venting with One 90° Elbow
Vertical (V) Horizontal (H)
5' min. ' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
0' max. 8' max.
Figure 30 - Vertical Rigid Venting
Configuration Using One 90° Elbow
Venting with Two
90° Elbows
Vertical (V
1
) Horizontal (H)
5' min. 6' max.
6' min. 1' max.
7' min. 18' max.
8' min. 0' max.
Figure 31 - Vertical Rigid Venting
Configuration Using Two 90° Elbows
VENTING INSTALLATION
INSTRUCTIONS
Continued
Vertical Termination Configurations
Figures 29 through 32 show four different configu-
rations for vertical termination. These minimum
vertical rises are based on horizontal runs with a
minimum of 1/4" upwards pitch per foot ad do
not reflect constraints on a vertical system with
45° or greater offset.
Any offset pitch of 45° or less must be considered
horizontal and sized within the maximum allow-
able lengths listed in the following examples. All
connections must be sealed with high temperature
silicone sealant as specified in the second warning
statement on page 11.
45° Starter Elbow
Note: Install restrictor
into inner collar of
fireplace as shown.
45° Starter Elbow
Note: Install restrictor
into inner collar of
fireplace as shown.
45° Starter
Elbow
Note: Install restrictor
into inner collar of
fireplace as shown.