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4 Reasons Why Your Furnace Starts Developing Rust

If there’s one thing that every household contains in Palo Alto, it’s a furnace.

They are an important part of every Palo Alto residential and commercial space. A furnace is responsible for maintaining a comfortable indoor temperature during the colder months of the year.

With the passage of time and constant usage, a furnace may require regular maintenance to work optimally. One of the first signs of a furnace’s degradation is the development of rust in different parts.

When rust runs deep in different areas, you can expect the equipment to experience a wear and tear soon. If left unattended, rust can lead to corrosion making the furnace malfunction.

In this article, we are going to discuss 4 reasons why a furnace develops rust overtime. So without further ado, let’s begin.

Rust Can Develop Because of a Water Leak

Leaky pipes can be a leading cause of rust development. Pipes can easily get damaged or rainwater can pool around your furnace which can eventually cause rusting to occur.

Once the water comes into contact with the metal surface, the surface starts eroding. It weakens the metal and you may see flakes appearing in different parts of the furnace surface.

What to Do: 

The best way to prevent moisture from developing on furnaces is by investing in waterproofing measures. By installing components such as drains, caulking, weather stripping gaps, and installing downspouts, you can take precautionary measures to avoid the furnace from erosion.

You can easily find all of these parts on your own, or you can get these issues fixed by hiring a professional.

Rust Can Develop Because of High Humidity

If your furnace unit is located in a place that often has high humidity, the longer it is left exposed, the faster it will develop rust. A damaged ducting is one of the primary reasons for how humidity finds its way into the ventilation system.

It’s a common occurrence in areas which observe high humidity. By simply adding a whole-house dehumidifier, you can eventually keep the humidity at bay.

What to Do: 

The best way to solve this problem is by hiring a trained professional. They have the necessary tools to perform all the repairs a ductwork needs. They will thoroughly inspect different parts of the ducting network and perform all the necessary repairs for the ducting system on the go.

Besides, a trained expert living in a humid area has often experienced such problems, so they have different solutions for it.

When You Have an AC Installed Atop the Furnace

In certain HVAC systems, the air conditioning unit is often installed atop the furnace. This is usually because both the units share the same blower motor. It’s natural for an air conditioning unit to produce water when it’s condensating and transferring the cool water through the pipes during the cooling process.

If the condensation pipe chokes or the drain pan cracks, it can lead to AC leakage. The water drips down atop the furnace unit placed underneath and the developed moisture initiates the corrosion process. At times as such, you may have to repair both, the heating & the cooling system.

What to Do: 

If the condensation pipe is leaking or the drain pan has cracked, a trained technician may have a look and provide the necessary repairs. The technician will replace the flaked furnace parts & unblock the condensation lines. They will also change the drain pans when and if needed.

Rust Can Develop Due to Furnace’s Old Age

With years of exposure to harsh climatic conditions, the furnace can experience irreversible damage. Assuming that your furnace has finally reached 15 years or above, it can eventually become prone to rust.

One of the most commonly affected parts of a furnace is none other but the heat exchanger unit. If you own an old furnace, getting a replacement is a wiser choice than opting-in for repairs.

What to Do

Call up a technician and have them take a look at your furnace unit. They will tell you which areas of your HVAC unit are in need of attention. If there are minor repairs, they will perform them in real-time.

But just in case, if the rusting has exceeded a certain limit and runs deep into the HVAC system, a trained technician will order replacements.

Read More: What Should You Do If Your Air Conditioning is Leaking?


Why Call Finest Heating & Air for Furnace Rusted Part Replacement?

We don’t want you to hate your home when it comes to furnaces.

At Finest Heating & Air, our technicians have all the necessary parts of an HVAC unit. Whether your furnace is used in a house or it’s part of a workplace, our professionals will do a thorough check & prepare all the necessary things to repair & replace the entire HVAC system. We are certified & trained professionals gone through all the appropriate training to perform furnace repair & replacements.

Is your furnace showing signs of rusting? Call Finest Heating & Air today at (650) 223-2028 today!

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