
Revised 5-21-20
Venting Installation Instructions
IMPORTANT:
Problems caused by improper installations are not covered by the manufacturer’s warranty.
IMPORTANT:
Undersized and improperly installed duct pipe and/or other ventilation components will cause excessive static
pressure (air resistance), that may
result in rattlin , vibration and air buffetin noises, as well as inadequate ventilation.
1.
Building Codes
BBQ Hood Ventilators should be installed by qualified technicians familiar with state and local buildin codes.
2.
Duct Pipe and ittings (Elbows, Tran
sitions, Roof & Wall Caps)
a.
Use round or rectan ular ri id metal duct only. Where possible, use round duct as it creates the least amount of
static pressure. DO NOT use flex duct.
b.
All duct sections and fittin s (EXCEPT DAMPERS, per Section 4), should ov
equally spaced screws and wrapped ti htly with 2
tape is more durable than traditional cloth duct tape. DO NOT use butt joints.
c. For best air flow,
elbows and pipe size transition fittin s should not be directly connected to one another. Where
possible, always include at least 15 inches of strai ht pipe between fittin s.
3.
Duct Pipe and itting Sizes
IMPORTANT:
No portion of any len th of duct pipe or fittin should be smaller than the dischar e port of the ventilator.
This is very important because any type of restriction anywhere in the ventilation system will cause increased static
pressure (air resistance),
that may result in rattlin , vibration and air buffetin noises, as well as inadequate ventilation.
See
Duct Sizing Chart and Area Calculations
Duct Runs – Length
a.
Confi ure the ventilation duct run to be as short and as direct to
elbows and transition fittin s used. Complex or lon runs should be reviewed by a qualified installer.
b.
No portion of the ductin should be run so that the exhaust air flows
the air to flow downward will cause increased static pressure. As previously mentioned,
pipe will cause excessive static pressure (air resistance), that may result in rattlin , vibration and air buffetin noises,
as well as inadequate ventilation.
c.
Duct runs for 1200CFM ventilator models should not exceed 35 linear feet with two 90
de ree elbows, a damper and a roof or wall cap. Lon er runs or additional elbows will result in decreased
ventilation performance. Each 90-
de ree elbow is the equivalent of 6 linear feet of duct pipe; each 45
is equivalent to 3 linear feet of duct pipe.
d.
Always run ventilator ducts to the outdoors. DO NOT terminate a duct into an attic, basement, ar
under a house, a chimney, other ductin or an enclosed room.
4.
Dampers
IMPORTANT:
DO NOT USE ANY TYPE OF DAMPER IN A BBQ HOOD APPLICATION.
In ventilation systems utilizin a roof cap or wall cap
cause increased static pressure (
inadequate ventilation.
Trade-Wind Manufacturing, LLC
Venting Installation Instructions
Problems caused by improper installations are not covered by the manufacturer’s warranty.
Undersized and improperly installed duct pipe and/or other ventilation components will cause excessive static
result in rattlin , vibration and air buffetin noises, as well as inadequate ventilation.
BBQ Hood Ventilators should be installed by qualified technicians familiar with state and local buildin codes.
sitions, Roof & Wall Caps)
Use round or rectan ular ri id metal duct only. Where possible, use round duct as it creates the least amount of
static pressure. DO NOT use flex duct.
All duct sections and fittin s (EXCEPT DAMPERS, per Section 4), should ov
erlap and be connected with at least 3
equally spaced screws and wrapped ti htly with 2
–
3 layers of Aluminum Foil Metal Duct Tape. This type of duct
tape is more durable than traditional cloth duct tape. DO NOT use butt joints.
elbows and pipe size transition fittin s should not be directly connected to one another. Where
possible, always include at least 15 inches of strai ht pipe between fittin s.
No portion of any len th of duct pipe or fittin should be smaller than the dischar e port of the ventilator.
This is very important because any type of restriction anywhere in the ventilation system will cause increased static
that may result in rattlin , vibration and air buffetin noises, as well as inadequate ventilation.
Duct Sizing Chart and Area Calculations
section for more detail.
Confi ure the ventilation duct run to be as short and as direct to
the outside as possible. Minimize the number of
elbows and transition fittin s used. Complex or lon runs should be reviewed by a qualified installer.
No portion of the ductin should be run so that the exhaust air flows
downward
the air to flow downward will cause increased static pressure. As previously mentioned,
improperly installed duct
pipe will cause excessive static pressure (air resistance), that may result in rattlin , vibration and air buffetin noises,
Duct runs for 1200CFM ventilator models should not exceed 35 linear feet with two 90
-
de ree elbows, a damper and a roof or wall cap. Lon er runs or additional elbows will result in decreased
de ree elbow is the equivalent of 6 linear feet of duct pipe; each 45
is equivalent to 3 linear feet of duct pipe.
Always run ventilator ducts to the outdoors. DO NOT terminate a duct into an attic, basement, ar
under a house, a chimney, other ductin or an enclosed room.
DO NOT USE ANY TYPE OF DAMPER IN A BBQ HOOD APPLICATION.
In ventilation systems utilizin a roof cap or wall cap
with a built-
in damper, remove it. Dampers are unnecessary and will
may result in rattlin , vibration and air buffetin noises, as well as
Page 10
Problems caused by improper installations are not covered by the manufacturer’s warranty.
Undersized and improperly installed duct pipe and/or other ventilation components will cause excessive static
result in rattlin , vibration and air buffetin noises, as well as inadequate ventilation.
BBQ Hood Ventilators should be installed by qualified technicians familiar with state and local buildin codes.
Use round or rectan ular ri id metal duct only. Where possible, use round duct as it creates the least amount of
erlap and be connected with at least 3
– 4
3 layers of Aluminum Foil Metal Duct Tape. This type of duct
elbows and pipe size transition fittin s should not be directly connected to one another. Where
No portion of any len th of duct pipe or fittin should be smaller than the dischar e port of the ventilator.
This is very important because any type of restriction anywhere in the ventilation system will cause increased static
that may result in rattlin , vibration and air buffetin noises, as well as inadequate ventilation.
the outside as possible. Minimize the number of
elbows and transition fittin s used. Complex or lon runs should be reviewed by a qualified installer.
ises, forcin
improperly installed duct
pipe will cause excessive static pressure (air resistance), that may result in rattlin , vibration and air buffetin noises,
-
de ree elbows, a damper and a roof or wall cap. Lon er runs or additional elbows will result in decreased
de ree elbow is the equivalent of 6 linear feet of duct pipe; each 45
-de ree elbow
Always run ventilator ducts to the outdoors. DO NOT terminate a duct into an attic, basement, ar
a e, crawl space
in damper, remove it. Dampers are unnecessary and will
may result in rattlin , vibration and air buffetin noises, as well as