Listed by
Underwriters
Laboratories
HOOD EXHAUST DUCT: Outside ventilation requires a HOOD EXHAUST DUCT. Read the
following carefully.
EXHAUST CONNECTION: The hood exhaust has been designed to mate with a standard
3-1/4”x 10”rectangular duct.If a round duct is required, a rectangular-to-round transition adaptor
must be used. Do not use less than a 6”diameter duct
REAR EXHAUST: If a rear or horizontal exhaust is to be used, care should be taken to align exhaust
with space between studs,or wall should be prepared at the time it is constructed by leaving enough
space between the wall studs to accommodate exhaust.
MAXIMUM DUCT LENGTH: For satisfactory air movement, the total duct length of 3-1/4”x 10”
rectangular or 6”diameter round duct should not exceed 140 equivalent feet.
ELBOWS, TRANSITIONS,WALL AND ROOF CAPS, etc., present additional resistance to airflow
and are equivalent to a section of straight duct which is longer than their actual physical size. When
calculating the total duct length, add the equivalent length of all transitions and adaptors plus the
lengths of all straight duct sections. The chart below shows the approximate feet of equivalent
length of some typical ducts.
For answers to your Monogram,
®GE Profile™or
GE appliance questions, visit our website at
GEAppliances.com or call
GE Answer Center®service, 800.626.2000.
Duct Equivalent Feet
A.Rectangular-To-round 5 ft.
Transition Adaptor
B. Wall Cap 40 ft.
C.90°Elbow 10 ft.
D.45°Elbow 5 ft.
E.90°Elbow 25 ft.
F.45°Elbow 5 ft.
G. Roof Cap 24 ft.
Specification Created 7/02
