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1.0m

1.0m

1.0m

90˚ Bend = 1.0m

1.0m

2.0m

1.0m

1.0m

90˚ Bend = 1.0m

3.0m

1.0m

In-line Motor - this needs to 
run off a separate activation 
switch to the range hood

External Vent

External Vent

RANGE HOODS

HOOD DUCTING GUIDE

Here are some important points to consider when choosing and/or installing a range hood:

• 

An externally ducted range hood will generally outperform a recirculating range hood.

• 

We discourage the use of flexible ducting as this has a significant negative impact on airflow and noise due to turbulence 

• 

caused by the ribs. Instead consider using semi-rigid or rigid duct.

• 

Avoid using a narrower duct than specified as this will reduce airflow; the best performance is obtained when the range hood is 
installed with a short duct with minimal bends.

• 

To determine the required clearance between the cooktop and the range hood always consult the installation manual for both 
the range hood and cooktop. The required clearance is the greater of the distance specified in either manual (and a minimum of 
600mm between the highest point of the highest burner for gas cooktops).

• 

Five metres is the recommended maximum length for ducting (see diagram 1.). When the ducting exceeds five metres in length 
the installation of a TD500 or TD350 in-line motor is required, which must be placed one metre from the external vent (see 
diagram 2.).

Diagram 1.

Diagram 2.

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