Heat Exchanger Replacement in Fredericksburg, VA, and NOVA

heat exchanger for a furnace

Safe, Efficient Heat Starts at the Core with Heat Exchanger Replacement

Your furnace’s heat exchanger is the heart of your heating system—responsible for safely transferring heat to your indoor air without exposing you to harmful gases. When it cracks or fails, it can pose serious safety risks and drastically reduce system efficiency. At OHA HVAC, Plumbing, Chimney and Fireplaces, we provide expert Heat Exchanger Replacement in Fredericksburg and Fairfax VA, NOVA and surrounding areas, ensuring your system is safe, efficient, and ready for the seasons ahead.


Call 703-213-5161 today to schedule a thorough inspection or replacement!

Why Choose Us for Heat Exchanger Service

Cracked or corroded heat exchangers aren’t just a performance issue—they’re a health and safety concern. Our licensed technicians are trained to spot the warning signs and perform replacements that meet all safety codes and manufacturer guidelines. We use only approved replacement parts and back our work with experienced craftsmanship and care.

At OHA HVAC, Plumbing, Chimney and Fireplaces, we prioritize your comfort and safety. We’ll explain our findings, review your options, and never push for a replacement unless it’s absolutely necessary.

Signs You May Need a Heat Exchanger Replacement

Heat exchanger issues often go unnoticed—until they become emergencies. We recommend professional diagnostics if you notice any of the following:

  • Strange odors (metallic or burning smell) when the heat runs
  • Unusual flame behavior (yellow or flickering flames)
  • Soot buildup on or around your furnace
  • Frequent system shutdowns or tripped safety switches
  • Visible cracks or rust on the exchanger
  • Carbon monoxide alerts or detector activation
  • Inconsistent heating or airflow
  • Expert inspection and diagnosis
  • Safe removal of damaged or cracked heat exchanger
  • Installation of OEM-approved parts for your furnace model
  • Complete system testing for safety and performance

If a replacement is needed, we act fast to restore your heat and peace of mind—especially during colder months.

Schedule Your Heat Exchanger Replacement Today

Don’t wait for a heat exchanger problem to put your home at risk. Trust OHA HVAC, Plumbing, Chimney and Fireplaces for dependable Heat Exchanger Replacement in Fredericksburg and Fairfax, VA, NOVA and surrounding areas that puts safety and performance first.

Call 703-213-5161 now to schedule your inspection or service and heat your home with confidence!

Frequently Asked Questions About Heat Exchanger Replacement

What is a heat exchanger, and what does it do?

A heat exchanger is a critical furnace component that transfers heat from combustion gases to the air circulated through your home. It keeps dangerous gases like carbon monoxide separate from your indoor air.

How can I tell if my heat exchanger is cracked or failing?

Signs include strange odors, soot buildup, a yellow burner flame, or your carbon monoxide detector going off. If you notice any of these, shut off your furnace and call for inspection immediately.

Is it safe to use a furnace with a cracked heat exchanger?

No—it’s not safe. A cracked heat exchanger can leak carbon monoxide, which is dangerous and potentially deadly. Immediate professional replacement is strongly recommended.

Can I replace just the heat exchanger instead of the whole furnace?

In many cases, yes. If the rest of the system is in good shape and the unit is still under warranty, replacing the heat exchanger is often more cost-effective than a full system replacement.

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Brian Hatfield
An HVAC technician provided an estimate for a heating and cooling system in Vienna, Virginia. The assessment included the current system's condition and recommendations for upgrades or replacements based on energy efficiency and performance.
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