Heatilator C40 Owner's Manual page 43

6 ft (1.8 m) max.
unsupported
run
20 ft (6.10 m) max.
pipe between an
offset & return
Ceiling firestop
14.5 ft (4.42 m) min. height/single offset-return
44 in.
20 ft. (6.10 m) min. height/double offset-return
(1118 mm)
to top of
standoffs
6 ft (1.83 m) max.
unsupported chimney
above roof
35 ft (10.7 m)
max. straight
unsupported
chimney height
50 ft (15.24 m) max. height