Anyone that needs to buy an air conditioner must be aware of
the different types available. The most common types are the
inverter air conditioner and the non inverter air
conditioner. So what is the difference between these two
aircon's? Most of the people have the mindset that an
inverter aircon will heat and cool at the same time. The
truth is that both air conditioners perform the same
function. Basically, the inverter air conditioners tend to
be newer in the Singaporean market, more than the non
inverter. One of the major differences between the two is
that an inverter aircon will have an inverter rating, while
the non inverter unit will have an energy efficient rating.
Here is a look at the difference between the two:
Functions of the aircon's inverter
One of the top differences is in their functionality of the
inverter of that aircon. This is a tool that is found in
both the aircon's and it is meant to save on the electricity
being used. The inverter that is found on the Inverter
aircon will control the compressor motor speed, which means
that it will change the temperature as required. In the long
run, this will help to limit the consumption of electricity
by the aircon. The compressor of the non inverter aircon
will function at a maximum ability or zero. This will mean
that the aircon might end up using excess energy to control
the current, leading to increased bills.
The compressor unit
The amount of cooling or heating that is needed by the unit
is another common factor that brings about the difference.
These two will also affect the internal and external
temperature of the particular room that the aircon is
installed. The inverter aircon will operate using a
compressor unit that is controllable. The compressor of the
inverter aircon will work at a higher speed, which will
enhance the refrigerant quantity. This will happen mostly if
the there is need to increase the heating or cooling
capacity of the unit. Conversely, if the temperature is
lower, the compressor will operate at a reduced speed, which
will cut down on the refrigerant amount. On the other hand,
the non inverter air conditioner, the compressor is not
easily controlled. This implies that the compressor will not
operate at all, or it will operate at its maximum ability.
In case there is a need for high refrigerant amounts, then
the compressor will run at a higher speed. Conversely, if
there is a need for low refrigerant amounts, then it will go
off. This will mean that there will be higher and
uncontrolled energy consumptions.
Friendliness to the environment
The inverter aircon tends to be friendlier to the
environment than the non inverter. Here, the inverter air
conditioner is able to sense an abrupt change in the room
temperature. When this happens, the compressor will either
work faster or slower, depending on the temperature. In case
the room temperature reaches its target, then the compressor
will change its speed to its default. This helps to sustain
a constant room temperature. The inverter aircon will help
to save the energy used, whereby, it uses about 30 to 50%
less energy than the non inverter aircon's.
How the unit works
Technically, the inverter aircon is more accurate than the
non inverter units. With the non inverter aircon, it will
work on a fixed heating or cooling power and the compressor
will run at a default speed. This implies that the
compressor will start and stop when it is needed by the
unit. With the inverter units, they will be super flexible
and will work according to the room temperature. The speed
will change according to the temperature of the room.
Summary of the non inverter air conditioners
- They will work on a single or a constant speed, either
full power or no power, where it turns off.
- It uses more electricity, due to the start-stop frequency.
This is because there will be more power needed to start up
the unit, which ends up using more electricity.
- They use one or two compressors that links to several
indoor units, which means that you will need to use the air
conditioner's full capacity to serve all the rooms.
- They can be unreliable, since they will keep on going off
and on, in relation to the change in the room temperature.
Any time the temperature of the room goes extremely high or
low, the non inverter unit will either go on or off, which
might not be that reliable.
- They are cheaper. One upper hand of the non inverter air
conditioners is that they are cheaper, compared to the
inverter units. This could be because they are not designed
with automation of controlling the speed of the compressor.
Summary of the inverter air conditioner
- They save more energy than the non inverter units. They
will not go off, regardless of the temperature of the room,
meaning that they will consume less energy.
- They have variable settings, which will be suitable for
any type of house or room.
- They tend to be quieter, when running. Compared to the non
inverter aircon, the inverter aircon runs smoothly and with
- They tend to be more reliable, especially since they have
a well controlled compressor, which will work according to
the room temperature.
- They also have a longer life span, especially with the
compressor. In most cases, the compressor is the major
component of the aircon and if it can last for long, then
the aircon can also last for long.
- They are more expensive. One major drawback of the
inverter air conditioner is that it will be more costly than
the non inverter. The good thing about them is that you will
end up spending less on your electricity bills, so there is
no much pain in its price.
The bottom line is that the non inverter air conditioner
might be cheaper to buy, but they will be more expensive to
manage. On the other hand, the inverter air conditioners are
expensive to buy, but quite cheaper to manage and they work
@bsolute Aircon- Aircon Servicing & Repair Company in
Thank you for the great service and also
knowledgeable air conditioner technician who
explained to me in detail on what happened to my
air conditioner. Highly recommended.
Mr Daniel Seah (Hillview Ave)
@bsolute Aircon- Your solution for all
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