How To Know If You Need Heat Exchanger Repair
Burnside Air Conditioning, Heating & Plumbing

The heat exchanger is an extremely important part of any furnace, performing the vital function of separating hazardous fumes from the warm air that moves through your home.As with any hard-working component of an HVAC system, the heat exchanger is prone to wear and tear over time, specifically cracking that could pose a health risk to you and your family. These are just a few of the signs that you might need heat exchanger repair.
Accumulation of Soot
If you see black residue inside your furnace, that could be a sign that you need heat exchanger repair. This could be due to a crack in the component that will lead to improper combustion. This, in turn, could result in noxious fumes being circulated throughout your home.
Corrosion and/or Rust
These are sure signs that there’s something seriously wrong with your heat exchanger. Over time, moisture can lead to the development of rust, which can eventually corrode your system. If you see any rust on the outside of the unit, that’s a very good indication that there’s corrosion on the inside. Get in touch with a professional as soon as possible to get it checked out.
Carbon Monoxide Warning
If you have a carbon monoxide detector in your home (and everyone should), it might go off due to dangerous fumes coming through your vents. One of the more common reasons this occurs is a corroded or cracked heat exchanger.While a heat exchanger repair is sometimes possible, in most instances a cracked component will need to be replaced. If your unit is relatively young it might be worth it, but you’ll probably be better off getting an entirely new furnace. Putting a new heat exchanger in an old furnace would be something like getting a new engine for an old car.Talk to a professional with Burnside Air Conditioning, Heating & Indoor Air Quality if you would like to schedule a furnace inspection. Contact us online or call (972) 562-7789 for more information.
Need Help?
Contact us today to discuss your needs. Our team is ready to help.
About the Author
Burnside Air Conditioning, Heating & Plumbing
More Articles
View All PostsRelated Articles

How Proper Insulation Maximizes the Lifespan of Your New Heat Pump
Upgrading to a high-efficiency heat pump won't solve your comfort issues if your home's thermal envelope is compromised. Learn why sealing leaks prevents premature system failure.
Read Article
Addressing Uneven Cooling in Celina, TX Homes with West-Facing Windows
When your west-facing living room turns into an oven every afternoon, your AC works overtime. Understand why standard HVAC systems struggle with this solar heat and how to safely balance it.
Read Article
Diagnosing Sulfur Smells in Your Water Heater After a Long Texas Summer
If your hot water smells like rotten eggs this September, you might be dealing with a bacterial bloom. Find out if your system needs a basic flush or a professional anode rod replacement.
Read Article
Patching a Leaky Air Duct vs. Complete Ductwork Replacement
When high energy bills point to duct issues, choosing between a simple mastic patch and a fresh start isn't guesswork. See the criteria professionals use to evaluate your system's health.
Read Article
Should I Schedule Furnace Repair Now if My Heater Worked Fine Last March?
Many homeowners assume a heater that ran perfectly in the spring will start right up in the fall. Here is why an idle furnace needs a proactive checkup before the first cold night.
Read Article
The Process of Testing Gas Furnace Draft Inducers for Carbon Monoxide Safety
Your heating system's exhaust relies on a draft inducer to safely vent dangerous gases outdoors. Discover how our professional diagnostic tools verify this vital component before winter hits.
Read Article
Preparing Pier and Beam Homes in Anna, TX for Shifting Fall Temperatures
Rapid fall temperature drops create a unique condensation trap under Anna's older homes. See how to balance crawlspace ventilation to prevent wood rot while keeping your floors warm.
Read Article
Whole-House Air Purifiers vs. Upgraded HVAC Filters for Ragweed Season
Texas ragweed season forces a tough choice between clean indoor air and AC performance. Weigh the benefits of a dedicated purifier against high-MERV filters to protect your airflow.
Read Article
Why Does My HVAC System Smell Dusty When I Turn on the Heat?
That burning dust odor on the first chilly September morning is a common scare. We break down the mechanics behind this seasonal burn-off and exactly when a smell warrants an emergency service call.
Read Article
The Hidden Link Between Dirty AC Coils and Early Fall Indoor Allergies
As the weather cools and windows stay shut, trapped summer dust and moisture on your AC coils can trigger sudden sneezing. See how this impacts your indoor air.
Read Article
Transitioning Your McKinney Home's HVAC Settings for Early September Mornings
Stop fighting your thermostat during those wild late-summer temperature swings. We break down a simple scheduling strategy for crisp mornings and hot afternoons.
Read Article
Solving Drainage Issues from Condensation Lines in Melissa, TX Attics
A faint brown water stain on your ceiling often points to an overflowing attic HVAC unit. Recognize the early signs of a drainage backup and stop costly drywall damage before it spreads.
Read ArticleReady to Get Started?
Whether you need a repair, maintenance, or a new installation, our expert team is here to help.
