Which is better? Copper Coil vs Aluminium coil in AC

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Coils play an important role in the operation of an Air Conditioner. There are two types of condenser coils: the evaporator and the condenser. Each coil has a specific job. You will need them to work efficiently.

Copper is the most common choice for AC coil manufacturing. Copper can be costly. Aluminum coils are a better alternative. Let’s make a comparison between these two. Copper coils and aluminum coils See who wins the race.

Copper Coil vs Aluminium coil in AC


Transfer of heat

The transfer of heat is the main function of coils. Copper has a higher heat-transfer coefficient than aluminum. Copper coils have a higher heat transfer coefficient than aluminum.

Cost factor

Aluminum is more expensive than copper. An AC equipped with copper coils is more expensive. Aluminum has given the AC a sense both of serenity and parity. This greatly reduces the cost of its manufacturing. Aluminum coils are therefore more cost-effective.


Aluminum is malleable and more flexible than copper. It can be made into any shape you like. It takes three times as much copper to make aluminum coils the same size and shape, according to statistics. It can be costly.

Some manufacturers have managed to reduce the thickness of copper coils. Aluminum is more flexible than copper in terms of its flexibility.


Copper is more durable than aluminum and lasts longer. Aluminum coils must be replaced if they are damaged. Copper coils are not affected by this. They can be repaired and reused. Copper wins in durability.


The maintenance of the coils is directly affected by their durability. Copper is more durable so maintenance costs are lower. Aluminum coils are much more difficult to maintain. Copper is better than aluminum for maintenance.


Maintaining coils is dependent on the weather and climate conditions. Over time, corrosion can occur. Corrosion can have a significant impact on heat transfer. There is also the possibility of developing leaks.

This could have an adverse impact on the AC’s functioning.

The AC unit’s life expectancy will be reduced because the compressor must work harder to maintain the same efficiency levels. As far as corrosion is concerned, it is important to take care of both copper and aluminum coils.

This is the difference between aluminum and copper coils.

Copper coils are superior in certain categories, such as heat transfer, durability and maintenance. Aluminum is also comparatively less expensive and certainly more flexible than copper.

We have therefore a mixed response to the problem. Each coil has its advantages and disadvantages. The key is how you use your AC and how often you service it.

How can you eliminate the corrosion factor?

Protecting the condenser and evaporator coils against moisture and humidity is the main goal. This can be done by painting the coils with anti-corrosive substances.

Some AC brands use the “Bluefin condenser protect condenser coils from humidity. This is a great way to protect AC units from moisture and salt.

To negate corrosion, you can also use microchannel condenser coils. Microchannels made from aluminum allow the refrigerant to flow through them. Flat aluminum fins are used between the tubes and the refrigerant manifolds in this system.

This system uses Aluminium alone to protect against galvanic corrosion. This AC system is ideal for coastal areas with high salt concentrations.

You now know the differences between copper coils and aluminum coils. You can ask me any questions about Air Conditioner selection in the comments below.

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