Heat-N-Glo Grand-50 Installer's Manual page 12

VENTING WITH ONE (1) 90° ELBOWS
V (FT.)
3' MIN. (914 mm)
4' MIN. (1.2m)
5' MIN. (1.6m)
6' MIN. (1.9m)
V + H = 30' MAX. (9.3 m)
Ratio V to H = 1:2
NOTE: SRV570-290 Heat Shield is required above
elbow if clearance is less than 4 inches (102mm).
H (FT.)
6' MAX. (1.9m)
8' MAX. (2.4m)
10' MAX. (3.1m)
12' MAX. (3.6m)
H = 20' MAX. (6.2m)