Choosing an Extension Tube
Consult the tables below to select the appropriate extension tube for your fan.
Ceiling Height
For optimum performance, Big Ass Fans recommends the
following extension tube lengths based on ceiling height.
Ceiling Height
9.5–11 ft
(2.9–3.4 m)
11–13 ft
(3.4–4 m)
13–14 ft *
(4–4.3 m) *
>14 ft *
(>4.3 m) *
* Big Ass Fans recommends using an extended length
extension tube for ceiling heights over 13 ft (4 m). The fan
comes standard with 20 in. (508 mm) and 32 in. (813 mm)
extension tubes. Other lengths are available by contacting
Customer Service.
2
Extension Tube Length
20 in.
(508 mm)
32 in.
(813 mm)
48 in. *
(1219 mm) *
60 in. *
(1524 mm) *
Ceiling Slope
Haiku fans with a universal mount can be installed on sloped
ceilings with an angle no greater than 33°.
Maximum
Fan Diameter
Ceiling Slope
52 in.
(1.3 m)
52 in.
(1.3 m)
60 in.
(1.5 m)
60 in.
(1.5 m)
84 in.
(2.1 m)
84 in.
(2.1 m)
Extension Tube
Length
20 in.
26°
(508 mm)
32 in.
33°
(813 mm)
20 in.
22°
(508 mm)
32 in.
33°
(813 mm)
20 in.
16°
(508 mm)
32 in.
29°
(813 mm)
HAIKU® BY BIG ASS FANS
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REV. A
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06/17/2020