When it comes to selecting the right air conditioning and heating unit for your home, it is essential to be aware of the various types of coils available. Copper coils have been the traditional option, but aluminum coils have recently become more popular due to their superior protection against oxidation. All-aluminum coils are also more resistant to pinhole leaks, which can be expensive to repair in an HVAC system. Experts in the HVAC industry have come to rely on the durability of aluminum over copper. Aluminum coils have rust protection that copper does not provide, and they increase surface area to make up for lower heat transfer.
Although aluminum is more prone to oxidation than copper, it has a natural resistance to corrosion under the initial layer. A participant at an HVAC technology forum states: “I have been a fan of aluminum coils for 30 years and have never had spontaneous leaks. The big problem with aluminum coils is that, IF a leak occurs, repairs are nearly impossible.”Nowadays, service technicians report that inner aluminum coils are leaking along the fins on both sides of the coil and need to be replaced. If you're replacing an older unit, you should also find out if you currently have a 4-ton or 5-ton air conditioner. When deciding between copper and aluminum coils for your HVAC system, it is important to consider the advantages and disadvantages of each material. Copper coils are more durable and can withstand higher temperatures than aluminum coils.
However, aluminum coils are more resistant to corrosion and oxidation, making them a better choice for long-term use. Additionally, aluminum coils are less likely to develop pinhole leaks, which can be costly to repair. Overall, aluminum coils offer superior protection against oxidation and corrosion compared to copper coils. They are also more resistant to pinhole leaks and can increase surface area for better heat transfer. If you're looking for a reliable and cost-effective option for your HVAC system, aluminum coils may be the best choice.
