13
SINGLE DRYER VENTING
IMPORTANT:
For exhaust duct runs over 20 feet (6.1 meters) a minimum size of 10-inches (25.4
cm)
must be
used.
HORIZONTAL VENTING
When a single 8-inch (20.32 cm) horizontal vent is used, the ductwork to the outlet
cannot
exceed 20 feet (6.1
meters), refer to
Illus. A
below
. This calculation of 20 feet (6.1 meters) compensates or allows for the use of
a maximum of only one (1) elbow, (which is the outside outlet protection).
Illus. A
IMPORTANT:
Exhaust back pressure measured by a manometer at the dryer exhaust duct area
must
be
no less than 0 and
must not exceed
0.3 inches (0.74 mb) of water column
(W.C.).
