|
Ask us anything ventilation!
|

Attic Fans,
Restroom Fans,
Workplace Ventilation Fans,
Whole House Fans. |
|
Knowing
what is needed.
Free consultation
about economical
installations for
commercial, industrial, home
and office - We're the
reliable mechanical
contractors for the Philly
area.
Restaurant ventilation, public restroom ventilation, workplace ventilation,
public facility, auto body, hazardous chemicals and work shop ventilation.
Wall mounted fans, quiet bath fans, steam vent out fans, large volume, through
the wall, pull chain type, belt driven fans
and rooftop mounted commercial ventilators.
|
Give us a general idea of what you are looking for and
we'll price it up for you.
 |
|
Ceiling Fans →
Why they are
Beneficial and How to choose the one that's right for You.
It wasn't
until the late 1970's until people began noticing that these
energy-efficient ceiling fans were a much cheaper
alternative to air-conditioning.
And as we all know today, not only cheaper but more
eco-friendly.
In the present day, we now have several types of ceiling fans, which
vary in shape, size, and devices. They are used
residentially, commercially, and industrially
and will continue to grow and change for years to come. |
|
♦INDUSTRIAL
& COMMERCIAL CEILING FANS♦
It is
important that commercial and industrial fans are powerful
and long-lasting. They push out much more air than
traditional ceiling fans and are used in many offices,
factories, and other establishments. Besides being bigger
than residential fans, they are different in other ways as
well. In the picture to the right, you notice that there
are only 3 blades⒞. They are manufactured with only 3
because, unlike residential fans, they
are
operated with an exceedingly high speed.
Therefore, the weight of more than three blades would use
more electricity, as well as put more stress on the motor,
causing
it to burn out more quickly. Unlike residential fans,
decoration is not a concern. They are usually produced only
in the colors black, white, or gray. As you can see in the
photograph, it is simplified to the bare necessities: a
long downrod⒡, 3 large blades, and an electric motor⒜. |
|
All fans
are made up of the same basic parts: |
A.
electric
motor~
in the center of the fan; the
control center for all of the other
parts.
Gets
its energy source from a few
different alternatives,
differ in noise levels, and vary in
sizes and strength
(see motor size).
B. motor housing~ mainly used
on residential fans, it is a
decorative covering to conceal the
motor. In association with the
motor housing, the switch housing
is also used to hide the
inner-workings of the fan.
Also known as a “switch cup,” the
switch housing is metal cylinder
installed underneath and in
the center of the motor. Its
purpose is to hide and protect
wires, switches, capacitors, etc. 
C. blades~
the paddles positioned around the
fan that force the air to circulate.
Are attached to motor by blade
irons⒟
and a flywheel⒠,
or rotor. They vary
in material, size, and amount.
As mentioned above,
residential fans generally have
four to five blades, while
commercial fans generally use
three.
♦
blade materials ~
wood,
metal, plastic, and
MDF*.
Most popular residentially, are wood blades.
Many kinds of wood can be used, such
as cherry, oak, walnut, maple, teak,
etc. Though the weights can
slightly vary from one another, the
consumer usually decides the kind of
wood by its color,
since it’s being used in a home.
Plastic blades (typically made of
fiberglass) and the metal blades
are used industrially and
commercially. |
D.
blade irons~ also known as “blade brackets,”
“blade arms,” “blade holders,” or “flanges.” These are the
metal supports that hold the blades to the motor.
E. flywheel~ a metal or a tough rubber ring
that attaches the blade irons to the shaft of the motor.
The inside of the ring fastens to the shaft with a lock
screw, while the outside of the ring connects to the blade
irons with bolts. A substitution for the flywheel is a
“dropped flywheel,” which is mounted below the
fan’s motor housing, as opposed to level with the
motor housing.
F. downrod~ the pipe used to hang the fan from the
ceiling. They come in all different lengths, depending on
whether the fans are for residential or industrial use, or
simply the height of the room.
G. canopy~ the piece that is mounted onto the
ceiling, and connects with the downrod.
rotor~
an
alternative part
of the fan; can be used instead of the blade irons. As
opposed to attaching the blades to the blade irons, the
blade irons to the flywheel, and the flywheel to the motor,
the rotor connects the blades right into the motor. This
method decreases balance problems and
more efficiently hides fasteners. |
*
“MDF” stands for “Medium Density Fiberboard.” This is an
engineered wood, that’s produced by breaking down
the wood and combining it with wax and resin.
Recently, more eco-friendly materials have been used such
as, recycled paper, straw, bamboo, steel, and glass. Most
popularly the straw and bamboo are used, due to their fast
growth. Some of these blades are manufactured to be
moisture-resistant or flame-retardant. Definitely
recommended given that they can be less expensive than most
woods, they’re earth-friendly, reliable in strength yet
flexible, and have a lesser chance of splitting.
 |
|
Mounting Mechanisms
|
ball-and-socket system~
a good mechanism for
vaulted
ceilings since the piece
that connects to the downrod, moves freely which enables it
to be placed on a slanted ceiling.
close-to-ceiling mount~ similar to the ball-and-socket
system. The difference is that it connects from the canopy
straight to the motor housing, so that the whole fan can be
attached to the mounting bracket.
J-hook system~ also known as the claw-hook
system. A metal hook is mounted to the ceiling with a metal
bolt and then the fan is attached to the hook. Usually a
rubber bushing is placed in between the hook and the bolt to
minimize noise.
low ceiling adapter *
~ This is a must for rooms with low ceilings
since there is no need for a downrod. However, this
adapter must be purchased separate
from the fan. |
|
Many
residential ceiling fans are available with light fixtures.
Also known as “light kits,” these lights come in a
few different styles. |
|

Uplights~
installed on top of the motor, facing upward. They shine
light upward onto the ceiling.

Down
lights~
light fixtures that are mounted below the motor and shine
down, adding more light to the room.
Decorative light bulbs~
mounted inside the motor housing. In this case, the motor
housing has glass panels so when the light bulbs are
switched on, the light shines through
the glass. |
|
Fans have
assorted switches, which have many controls, such as turning
the fan on or off, adjusting the speed,
changing the blades’ direction,
and operating light fixtures that may be on the fan. |
|
pull
chain~ the original
control for fans. It’s very basic, controlling both
the fan speed and the light fixtures. Usually a bead
chain or a cloth cord, the pull chain generally turns on the
fan and goes directly to the “high” position. After
another pull, the fan slows down. It continues this
process until the fan turns back off. It usually
cycles through three speeds - high, medium, and low; but
sometimes it can have from one to four speed(s).
wall-mounted~ 2 different types: ס
digital control » used for all of
the fan’s functions; a computerized wall control that needs
no special wiring and has anywhere from three to six speeds.
ס
choke »
comes in different forms. It establishes how much
power is being sent to the fan, controlling how fast it
spins.
variable-speed control~ a dial is mounted on
the fan. Similar to a dimmer switch, this dial can be
rotated and the blades speed up or slow down depending on
which way you turn the dial, as opposed to having set speeds
(high, medium, low…). This can be installed in 3
different ways:
ס
the dial
can power the entire fan
»
speed, off/on, and light fixtures.
ס
the dial
is accompanied by a pull chain
»
pull chain controls
whether it’s off or on while the dial controls the speed.
Light fixtures can
be controlled by either of them.
ס
dial and pull chain; pull
chain has two modes
»
¹ "high
power,” ² “variable.”
When the fan is in the “variable” mode, the dial can then
control the range of speed.
wireless remote control~ included with new
luxury fans. Like any other remote control, it sends
frequencies that the fan recognizes and it operates
accordingly. This can also be purchased separately and
installed into your current fan.
Ceiling Fans are
well-known for their Cooling Abilities but few know about
their Heating Abilities... |
|
HEATING (winter)
→
direction set clockwise, pulls air upward; takes advantage
of hot air rising and cold air sinking; pulls the cold air
up from the floor to mix with the warm air from the ceiling
COOLING (summer)
→
direction set counter-clockwise, air is blown
downward; doesn’t actually lower the temperature of the
room, but it has a cooling effect because the breeze helps
evaporate sweat and keeps the air from feeling thick
[side note: all fans have an electrical switch that changes
the direction of the blades.] |
Usually the blades spin
counter-clock wise. This enables air to be propelled
downward. This is how it keeps us cool in the summer since
it causes airflow in the room. Contrary to this “cooling
effect,” when the blades spin clock wise, it pulls the air
up.
This is
essential in the winter since cold air sinks and hot air
rises. This way, the fan pulls the cold air up from the
floor and combines it with the hot air from the ceiling.
EXCEPTION:
with ceilings that are two or more stories high the
directions would be reversed (counter-clock
wise → winter;
clock-wise → summer).
This is because
the ceiling would be too far above the ground for the
cooling effect, therefore hot air must be pushed down
in the winter and hot air pulled up in the summer. |
|
Types
of Ceiling Fans |
“hugger" or a “low profile” fan
~
used for low ceilings,
goes hand-in-hand with the
low-ceiling adapter.
It’s installed just low enough that
the blades don’t scrap the ceiling.
Cannot be used in a room with
vaulted ceilings.
“Outdoor ceiling fans”
~ meant for porches, sunrooms, or
any other room that’s partially
outdoors since they are made of
material that can endure cold, heat,
and humidity. It’s important
that water cannot reach the fan or
the motor; they should have a
rust-proof finish and non-warp
blades.
“Spinner fans” and “Spinner-motor
fans”
~ differ only in the fact that the
spinner fan does not have a motor
housing. This is because
spinner fans are primarily
industrial
fans.
“Direct-drive fans”
~ uses a “Spinner / Pancake”
motor and is
designed with a shell that circles
around an immobile central piece.
The blades are connected to this
shell.
|
|
Along with different
fans come different motors... |
|
“stack motor”
~ highly recommended due to its energy efficiency and its
powerful drive. It uses a basic
stator, a ‘squirrel cage’
rotor, and a standard flywheel.
“direct-drive motors”
~ least expensive to produce, yet they are the most likely
to break and are the noisiest. However, they have improved
over the years and now standard for today’s fans. There are
a few types of these motors:
ס
Spinner motor
»
a.k.a. the “Pancake motor”; used in direct-drive fans.
Designed with a shell that circles around an immobile
central piece. The blades are connected to this shell.
(see direct-drive fans.)
ס
Skeletal motor
»
the best of
the direct-drive motors; generally used in high-quality
fans. They are developed with an open “skeletal” design,
which enables maximum ventilation resulting in an extensive
duration of the fan. |
|
FOR YOUR SAFETY:
When
installing a fan, it should be hung minimally seven feet off
of the ground to decrease risk of injury. However,
depending on the activities that might occur in the room,
seven feet may not be high enough. For example,
carrying tall objects or high reaching can either damage the
fan and/or cause injury.
“WHY DOES MY
FAN WOBBLE ?”:
When a fan wobbles, it is irrelevant to
the
way the fan was mounted or the ceiling that the fan is
mounted on. Causes for wobbling include warped
blades, bent blade irons, blades or blade irons not being
screwed on straight, or blades being different weights,
shapes, or sizes. Though a “balancing kit” is included
with the purchase of a ceiling fan, the kit is only capable
of evening the weights of the blades as opposed to fixing
the other problems that cause this.
“DOES
WOBBLING CAUSE MY FAN TO FALL ?”:
No, your fan
will not fall from wobbling.
When installed, a fan uses
clevis pins, which
are locked with
cotter pins, to secure
the fan. On the other hand,
light kits may loosen and possibly
fall. Just make sure to follow
all directions carefully and
completely. Also, use the
appropriate mounting screws and
fasten them firmly. Light
fixtures should be correctly put
together and securely fastened.
It’s also important to sporadically
check its security, for instance
making sure that it’s tight,
undamaged, etc.
|
Electrical service,
Delaware County, Delco, licensed electrician, electrician, trouble shooting,
electrical contractor, 200 amp, 400 amp, electric service upgrade, Parking Lot
Light services and Poles, Philadelphia, PA.
New attic fan furnished and
installed $325.00. Attic Fans, Whole House Fans, Ventilation
Fans, Exhaust Hoods, Rooftop HVAC. Working Hard, Promising More.
Commercial, industrial, home, business and office – We are the
reliable service company for every type of air conditioning system/
Anthony Tori
– Licensed Electrician over 20 years.
Ardmore 19003, Aston 19014,
Bala Cynwyd 19004, Blue Bell 19422, Broomall 19008, Bryn Mawr 19010,
Conshohocken 19428, Devon 19333, Drexel Hill 19026, Frazer 19355, Gladwyn 19035,
Haverford 19041, Havertown 19083, King of Prussia 19406, Lima 19037, Malvern
19355, Media 19063, Narberth 19072, Newtown Square 19073,
Paoli 19301, Plymouth Meeting 19462, South Philly 19145, 19148, Springfield
19064, Swarthmore 19081, Wayne 19087, Wynnewood 19096,
Lower
Merion, Marple, Radnor, Pennsylvania.
Able
Group Inc. mechanical contractors 810-853-8311
Delaware County, Chester County, Montgomery County, Philadelphia PA and
suburbs.
Philadelphia
PA and suburbs.
Every property in these areas!
Construction Large or Small.
Construction Jobs by The Able Group Contractors for Home,
Business, Office.

Dresher 19025 Fans, Fans, Fans.
|
|
|
|
|
|
|
|
|