How Much Does it Cost to Replace a Furnace Heat Exchanger in Florida?

December 18, 2019

If you’ve recently had a technician tell you that your heat exchanger is cracked, your first question is probably, “How much is going to cost me to replace it?”

Unfortunately, heat exchangers are expensive, typically costing anywhere from $1,000–$3,500+ to replace.

We know, it’s a lot… and we’re sure you have questions, like:

  1. What is a heat exchanger (and why is it so expensive to replace)?
  2. Do I actually need to replace my heat exchanger?
  3. Should I just replace my furnace instead of my heat exchanger?

Below, we’ll answer these questions so you can get a better idea of what kind of furnace investment you’ll need to make in the near future.

Want to skip the reading and speak with a professional instead? We’d be happy to check out your furnace and make any necessary repairs or replacements. Learn more about the furnace repair services we offer or…

What is a heat exchanger (and why is it so expensive to replace)?

Heat Exchanger Location

A heat exchanger is a group of metal coils that are responsible for heating your home’s air. Your furnace sucks in room-temperature air through return vents and blows that air over the heated coils of the heat exchanger. This heat is transferred from the heat exchanger to the air, and heated air is blown through your ducts and out supply vents.

A heat exchanger is very expensive to replace because:

  1. The part itself is expensive- It’s the piece of your furnace that heats your home’s air (aka your furnace won’t work without it)
  2. The labor costs are expensive- Replacing a heat exchanger is a very time-intensive job (it can take a tech up to 10 hours to replace), which increases the overall labor cost of the job.

Now that you know why a heat exchanger is such an expensive part, let’s look at how to determine whether or not you really need to replace your heat exchanger.

How can I tell if I actually need to replace my heat exchanger?

Here’s the bottom line: If you can’t see a crack or hole in your heat exchanger with your naked eye, you probably don’t need to replace your heat exchanger.

Unfortunately, there are scammy techs that may try to convince you to replace your heat exchanger when it doesn’t really need to be replaced. Some techs may try to tell you your heat exchanger has a crack, but it’s too small to see. They may try to “prove” this with water or a smoking agent. However, only cracks that are large enough to see are cause for concern. Unless you see one of those cracks, you don’t need to replace your heat exchanger.

However, if you can see a crack in your heat exchanger, you need to replace it ASAP. Your furnace produces gases, some of which are dangerous. If you have a cracked heat exchanger, it can release these gases into your home, including poisonous gases like carbon monoxide.

Should I just replace my furnace instead of my heat exchanger?

It depends! As you know, replacing a heat exchanger is expensive, and you don’t want to pour money into a system that isn’t going to last. On the other hand, you don’t want to pay for a completely new furnace if you can spend a few thousand dollars replacing an otherwise healthy system.

Here’s our advice: Consider replacing your entire system (rather than just the heat exchanger) if the following situations apply to you:

  • Your furnace is 10+ years old and...
    • You notice that your heating bills are increasing
    • Your furnace isn’t heating your home as well as it used to
    • You’ve had to pay for other repairs in the last year or two

Of course, we are always happy to help you determine what the most cost-effective option is for you and your home. If you’re not sure whether or not it’s necessary to replace your heat exchanger, reach out to us. We would be happy to help you!

Time to replace your heat exchanger? Reach out to Florida’s trusted team: Red Cap

When it comes to a big investment (and a safety issue), you want to make sure you hire a team you can trust. At Red Cap, we make a commitment to treat you like family, and that means ensuring that you’re getting the best solution for your home, regardless of the time it takes us. You can learn more about the guarantees we offer or…


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