
12
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
VENTING INSTALLATION
INSTRUCTIONS
Continued
HORIZONTAL SYSTEM INSTALLATION USING TWO 90°
ELBOWS
The following configurations show the minimum vertical rise requirements for a horizontal system using two 90° elbows.
Venting with Two 90° Elbows
Vertical (V)  | Horizontal (H1)  | Horizontal (H1) +  | 
Horizontal (H2)  | ||
5' min.  | 2' max.  | 45° Elbow  | 
6' max.  | ||
6' min.  | 4' max.  | 12' max.  | 
7' min.  | 6' max.  | 18' max.  | 
8' min.  | 8' max.  | 20' max.  | 
20' max.  | 8' max.  | 20' max.  | 
Figure 17 - Horizontal Termination Configuration for Venting Using Two 90° Elbows
Venting with Two 90° Elbows
  | Horizontal (H1) +  | 
Vertical (V)  | Horizontal (H2)  | 
5' min.  | 6' max.  | 
6' min.  | 12' max.  | 
7' min.  | 18' max.  | 
8' min.  | 20' max.  | 
20' max.  | 20' max.  | 
45° Elbow
Figure 18 - Horizontal Termination Configuration for Venting Using Two 90° Elbows with Termination at 90° with Fireplace
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