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Signs Your Heat Exchanger Needs Professional Attention

Picture this: it’s a cold morning in Des Moines, and a homeowner wakes up to find her house unusually chilly. She checks the thermostat, but it’s set correctly. Confused, she places her hand near the vents and realizes that while air is blowing, it’s not as warm as it should be.

As the day goes on, the homeowner notices an odd, burning smell coming from the furnace. At first, she assumes it’s dust burning off, but the odor persists. Later that evening, she starts experiencing mild headaches and dizziness—symptoms she can’t quite explain. Concerned, she checks her carbon monoxide detector, and to her alarm, it’s beeping. She immediately turns off the furnace, opens windows for ventilation, and calls for service.

What Is a Heat Exchanger and Why Is It Important?

The above scenario shines light on the importance of maintaining and inspecting your heat exchanger when faults occur. Your heat exchanger plays a critical role in your heating system, transferring heat safely and efficiently to warm your home or business. When it starts to fail, it can lead to serious problems, including reduced heating performance and even potential safety hazards. Recognizing the signs of a failing heat exchanger can help you avoid costly repairs or dangerous situations.

Unusual Odors Coming from Your Furnace

If you notice a strong, unpleasant smell—especially one resembling formaldehyde—it could indicate a cracked heat exchanger. This is a serious issue, as a crack can allow carbon monoxide and other harmful gases to leak into your home. If you detect any unusual odors, it’s best to turn off your system and contact a professional right away.

Visible Cracks or Corrosion

Over time, heat exchangers can develop cracks due to the constant expansion and contraction from heating cycles. Corrosion is another warning sign that something isn’t right. If you see any visible damage, it’s a clear indication that your heat exchanger needs professional attention.

Inconsistent Heating or Reduced Efficiency

A failing heat exchanger can cause your furnace to work harder while producing less heat. If you’ve noticed that certain areas of your home aren’t warming up as they should or your energy bills are rising unexpectedly, your heat exchanger could be the culprit.

Frequent Furnace Cycling

Is your furnace turning on and off more frequently than usual? Short cycling can be a sign that the heat exchanger is overheating, triggering the system’s safety mechanisms. Ignoring this issue can lead to more extensive damage and higher energy costs.

Carbon Monoxide Detector Alerts

One of the most dangerous consequences of a cracked heat exchanger is carbon monoxide (CO) leakage. If your CO detector goes off, evacuate your home immediately and call a professional. Carbon monoxide is odorless and colorless, making it impossible to detect without a proper alarm.

Schedule a Professional Inspection Today

If you suspect issues with your heat exchanger, don’t wait—call Metro Heating & Cooling for a professional inspection. Our experienced technicians in Des Moines, IA, can assess your system, provide expert heating repairs, and ensure your home stays safe and warm. We repair all makes and models of furnaces and heating systems, including gas furnaces, electric furnaces, heat pumps and more.

Contact us today to schedule an appointment!