HVAC systems can be made from a number of different metals, but what’s the best sheet metal for HVAC units? In this quick guide, we break down the process of choosing metals for HVAC enclosures and other components based on your exact needs.
Keep reading for more information, or to speak directly to an expert, just call us now on 01509 233 280.
What is an HVAC System?
HVAC stands for Heating, Ventilation and Cooling. HVAC systems are designed to keep the inside of a building at a comfortable temperature and ensure the regular supply of fresh air and removal of unwanted gases or dust.
HVAC systems are commonly installed in commercial, industrial or large residential buildings to control indoor conditions. They’re usually mounted either on the roof or at ground level, and are exposed to weather conditions as well as potential debris and damage. Specifically designed enclosures help shield HVAC systems from weather and damage while still providing healthy ventilation. HVAC enclosures also have the added benefit of functioning as noise insulation and securing the system against vandalism.
Best Sheet Metal Materials for HVAC Systems
When it comes to choosing metals for HVAC enclosures, you have three main choices: galvanised steel, stainless steel, and aluminium. Each of these has its own benefits and drawbacks, making it suitable for different circumstances and requirements.
Galvanised Steel
Galvanised steel is an extremely popular choice for HVAC enclosures. It’s cost-effective, corrosion resistant and highly durable. Galvanised steel is made by hot dipping steel into liquid zinc, giving it a protective coating.
The zinc layer shields the steel from moisture, preventing it from rusting and making galvanised steel ideal for use in a range of applications, including indoor and outdoor.
Stainless Steel
Where especially high corrosion resistance is required, stainless steel is one of the best metals for HVAC components. Stainless steel is made using chromium, and has a self-healing layer that protects it from moisture and corrosion. It’s commonly found in construction for this reason.
Stainless steel HVAC enclosures offer exceptionally long lifespans, but can be a little more costly than galvanised steel enclosures.
Aluminium
Another common choice for HVAC enclosures is aluminium. A favourite of the aerospace and automotive industries, aluminium has a high strength-to-weight ratio, making installing your enclosure easy. It’s also naturally resistant to corrosion, ensuring your enclosure will last in any conditions.
Additionally, high thermal conductivity means aluminium HVAC enclosures are very efficient at transferring heat away from your units, helping them run more efficiently.
HVAC Material Costs and Durability
Another factor in choosing metals for HVAC enclosures is cost. Different materials have varying price points and levels of durability. Selecting the right one for your requirements will be a case of balancing upfront cost with projected lifespan. Saving money in the short term could cost you more in the long run, as you may need to pay for replacements more frequently.
For example, galvanised steel is one of the more cost effective metals for HVAC enclosures, but won’t last as long as stainless steel, and can be outlasted by aluminium depending on the conditions. Whereas aluminium is one of the most expensive choices, but will last much longer, even with exposure to weather.
Does HVAC Sheet Metal Rust?
Whether the sheet metal used for your HVAC components will rust depends on which material you choose. You should select a metal that is corrosion-resistant, such as galvanised steel, stainless steel or aluminium. These will be able to withstand rusting even when installed outdoors.
These metals can be further protected from moisture and corrosion with the application of a protective finish, such as powder coating.
Choosing the Right Metal Finish
The right finish can drastically extend the lifespan of your HVAC enclosure. At JC Metalworks, we offer a range of high quality metal finishing services, designed to help your enclosure last, even in demanding applications.
From powder coating to metal plating, we can help protect your components, increasing lifespan, reducing the need for replacements and making your enclosure more cost effective in the long term.
Precision HVAC Enclosure Fabrication
JC Metalworks has been fabricating high-quality metal components, including HVAC enclosures, since 1986. We provide a stress-free, end-to-end service with a team of more than 80 industry experts.
Our 60,000 square foot facility is based in the UK and houses a collection of state-of-the-art machinery and tools, allowing us to deliver HVAC enclosures that last. You can learn more about our HVAC enclosure manufacturing process in our blog post.
Why Choose JC Metalworks for HVAC Enclosure Fabrication
JC Metalworks is one of the UK’s leading choices for precision metal fabrication. We design and manufacture bespoke HVAC enclosures using a variety of metals to suit specific requirements. As well as high-tolerance fabrication, we also offer a range of durable finish options to provide outstanding weather and corrosion resistance.
For more information about choosing metals for HVAC enclosures or for a free quote, reach out to our team today by calling 01509 233 280, emailing [email protected] or filling out our contact form.
