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Written by
Sarah Noel
September 5, 2024
Fact-checked by
Tom Grupa
Replacing a furnace heat exchanger costs $1,000 to $3,000 on average. Heat exchanger prices are $350 to $850 for the part. Heat exchanger replacement labor costs $650 to $2,150. A heat exchanger warranty lasts 10 to 20 years and only covers the part, not labor.
Heat exchanger replacement cost - chartHeat exchanger replacement cost National average cost $2,000 Minimum cost $700 Maximum cost $3,500 Average cost range $1,000 to $3,000* Cost data is from research and project costs reported by HomeGuide members without warranty coverage.
Industrial or commercial heat exchanger prices are $1,500 to $5,000.
A heat exchanger for a combi boiler costs $100 to $300.
A secondary heat exchanger costs $300 to $800.
Only replace the heat exchanger if the furnace is less than 10 years old with no other issues, and if it costs much less than a new furnace. A new furnace costs $2,000 to $5,400.
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Heat exchanger prices are $350 to $850 for the primary heat exchanger unit alone and $300 to $850 for a secondary heat exchanger in most residential gas furnaces.
Heat exchanger prices Type Unit price Total replacement cost Heat exchanger $350 – $850 $1,000 – $3,000 Secondary heat exchanger $300 – $800 $1,000 – $2,000 Furnace heat exchanger diagramHeat exchanger unit prices depend on the brand:
Carrier and Bryant heat exchangers cost $350 to $800.
York heat exchanger prices are $470 to $800.
Goodman heat exchangers cost $260 to $860.
Lennox heat exchangers cost $260 to $840.
*Material prices only, excluding shipping.
Single-cell heat exchanger tubes cost $100 to $250 each to replace part of the heat exchanger rather than the entire heat exchanger assembly kit.
Replacing a secondary heat exchanger costs $1,000 to $2,000, depending on the brand, material, and furnace capacity. The secondary heat exchanger part alone costs $300 to $800.
Only a high-efficiency condensing furnace uses two heat exchangers to reclaim extra heat from the exhaust.
A heat exchanger for a boiler costs $100 to $300 on average, depending on the boiler type, size, and BTU rating.
Most boilers need a brazed plate heat exchanger for a water-to-water heat transfer system.
Modern condensing boilers have two heat exchangers that increase energy efficiency.
Industrial or commercial heat exchanger prices are $1,500 to $5,000, depending on the furnace type, size, brand, and BTU rating. Commercial heat exchangers typically have heat-output ratings greater than 150,000 BTUs.
Costs to replace a heat exchanger depend on the furnace size, brand, accessibility, heating-system design, and labor costs.
Heat exchanger cost factors to replace Factor Average cost Heat exchanger $350 – $850 Installation labor $650 – $2,150 Total cost $1,000 – $3,000Cost factors include:
Furnace size – A heat exchanger for a larger furnace typically costs more.
Furnace age – Installing new parts in an older furnace is more difficult and requires additional labor.
Brand – Heat exchanger prices vary by manufacturer. Original equipment manufacturer (OEM) parts typically cost more than generic parts.
Material – Stainless steel heat exchangers cost more than aluminum.
Heat-exchanger system type – A high-efficiency condensing furnace with two heat exchangers is more complex than a standard furnace, so replacement parts and labor cost more.
Labor cost – Labor rates are typically higher in bigger cities compared to rural areas. Hard-to-reach furnace locations require additional labor.
Contractor experience – Expert HVAC technicians with 5+ years of experience and multiple certifications charge more for labor.
Season – Service fees increase during peak cold weather due to high demand.
Heat exchanger replacement labor costs $650 to $2,150 on average. Labor often costs more than the part because the contractor must disassemble and then reassemble the entire furnace interior.
Furnace repair service costs $75 to $150 per hour on average.
Minimum service fees are $75 to $200, typically applied as the first hour of labor.
HVAC emergency service costs $140 to $210 per hour for calls outside of regular business hours.
HVAC heat exchanger replacement costs $1,000 to $3,000 for most furnace types. Heat exchangers must fit the fuel type, model number, and brand of the existing furnace.
Oil, propane, and natural gas furnaces use the same process to convert fuel into heat. However, their heat exchangers are not interchangeable.
Electric furnaces don’t use heat exchangers.
A heat exchanger warranty lasts 10 to 20 years or the lifetime of the furnace, depending on the brand, model, and type of furnace.
Most part warranties for furnaces do not cover the cost of replacement labor.
Labor is sometimes free with a labor warranty from the dealer.
A cracked heat exchanger repair costs $1,000 to $3,000 for replacing the part. HVAC technicians typically don’t repair heat exchangers due to safety concerns, and replacing the part is the most common repair method.
The most common cause of a cracked heat exchanger is overheating, due to a dirty filter, lack of maintenance, or an oversized furnace.
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Only a technician’s combustion analysis test can fully verify that a heat exchanger has a crack and is leaking carbon monoxide. Beware of scams to make a heat exchanger appear cracked as a trick to sell a whole new furnace.
Replacing a heat exchanger costs $1,000 to $3,000, while furnace replacement costs $2,000 to $5,400 on average.
Cost to replace heat exchanger vs. new furnace Replace heat exchanger Install new furnaceA heat exchanger is a metal tube system within the furnace combustion chamber that heats the air blown over it while keeping toxic exhaust out of the central air ducts.
How it works:
The ignitor sets off the natural or propane gas to light the burners.
Hot gases from the burners enter the sealed heat exchanger, which heats up and vents toxic gases outside.
The blower fan sends cold air over the surface of the hot heat exchanger, creating heated air sent indoors through the ductwork.
A furnace heat exchanger lasts 15 to 20 years on average, depending on the maintenance frequency, quality of the part’s materials, and daily usage.
Replacing a heat exchanger takes 5 to 10 hours, depending on the furnace type and the technician’s experience. Replacement includes removing everything in the combustion chamber, installing the new part, re-assembling and rewiring every component, and testing.
Damaged or cracked heat exchanger symptoms include:
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Carbon monoxide detector alarm
Corrosion, rust, or cracks in other furnace parts
Orange or yellow flame instead of the usual blue flame
Unexplained furnace shut-offs
Rattling noises when the heat turns on
Strange smells, like formaldehyde or other toxic chemicals
Signs of decay on furnace exterior
Water on the floor around the furnace
White or black soot buildup around the furnace burners
A cracked heat exchanger leaks carbon monoxide (CO). Signs of CO poisoning include drowsiness, headaches, shortness of breath, vision changes, nausea, and vomiting.
Before hiring a pro for furnace repair or boiler repair near you, be sure to:
Get at least three in-person estimates to compare.
Verify that the HVAC contractor has state and local licenses.
Check for certifications from:
NATE (North American Technician Excellence)
American Society of Heating, Refrigeration, & Air-Conditioning Engineers (ASHRAE)
HVAC Excellence
Other local HVAC training programs
Look at their reviews on HomeGuide and Google.
Seek certified, insured, and bonded companies with 5+ years of experience.
Get a written estimate, contract, and warranty before work begins.
Avoid companies with the cheapest quotes as quality may suffer.
Don’t pay in full upfront. Follow a payment plan and save receipts.
Can you provide a list of references?
Do you offer free estimates?
How long will the job take?
Do you use original equipment manufacturer parts?
Will you do a combustion analysis to test for carbon monoxide leaks?
How can I make the heat exchanger more efficient and prevent similar damages?
Will you conduct a full inspection of my furnace, ductwork, and flue pipe? Does that cost extra?
How do I keep my gas furnace as safe as possible and improve the air quality in my home?
Do you offer an HVAC maintenance plan? If so, what does it include?
What does your warranty or guarantee include?
Will you provide a written report summarizing the repairs and maintenance?
When it comes to your home's comfort and energy efficiency, the health of your heating system is paramount. The heat exchanger is one of the most important elements of a furnace, and it’s important to know how much it typically costs to replace it. In this article, we discuss the factors that affect the cost of a new heat exchanger and provide an overview of how much you can expect to pay. Knowing the potential costs can help you budget for this important investment in your home.
A heat exchanger is a device used to transfer heat energy from one medium to another. Typically, one medium is a fluid that carries the heat, such as water or oil, and the other is a solid surface, such as a metal plate or a set of metal fins. Heat exchangers are commonly used in a variety of applications that require the efficient transfer of thermal energy from one medium to another, including industrial processes, HVAC systems and automotive engines.
A heat exchanger is composed of a set of tubes, plates, fins, or other components that are designed to facilitate the transfer of thermal energy from one medium to another. Heat exchangers come in many shapes and sizes, from small household water heaters to large industrial furnaces. The heat exchanger design depends on the application, with different types of heat exchangers designed to maximize efficiency and effectiveness for specific types of applications.
The most common type of heat exchanger found in a home is a forced convection design, which uses a fan or blower to move air over the heated surfaces. In industrial applications, shell-and-tube heat exchangers are the most common design, which consists of a series of metal tubes surrounded by a shell. Heat exchangers can also be manufactured to be air-to-air or air-to-liquid, depending on the type of coolant used.
Heat exchangers are typically made of metal, such as stainless steel, copper, aluminum, or cast iron, with different metals used depending on the application and budget. Corrosion and fouling can be a major issue in some applications, so proper maintenance and cleaning of heat exchangers is essential to ensure efficiency and longevity.
Replacing just the heat exchanger is possible depending on the type of system you have, as well as the age and make of the system. Older systems may be more difficult to work on due to space limitations and availability of components. Heat exchangers are one of the most important components of a heating system, as they are responsible for transferring heat from one medium to another. If a heat exchanger fails, it is important to replace it in order to keep your home or business safe from dangerous exhaust gases. A qualified HVAC contractor can tell you whether or not a replacement is necessary.
If you decide to replace the heat exchanger, it is important to choose the right one for your heating system. Not all exchangers are interchangeable, so it is best to consult with an HVAC professional to find out which one is best for your particular situation. In addition, you must also make sure that the new exchanger is installed correctly so that it is compatible with the rest of the system. Installing a heat exchanger incorrectly can cause significant damage to your system, and may even be a potential safety hazard.
The cost of a heat exchanger replacement can vary depending on several factors. Generally, the new heat exchanger should cost between $400 and $900 for a standard size. The cost may also be affected by the age and make of the system, as well as the availability of the specific components needed for the job. Additionally, if your system is particularly complex, you may need to hire a professional to install the new heat exchanger, which could cost significantly more.
Ultimately, replacing a heat exchanger can be an expensive and time-consuming endeavor. It is important to make sure that you are taking the steps necessary to ensure that your system is running safely and efficiently. Consulting with an HVAC professional can help you make the best decisions for your system, and can save you time, money and hassle in the long run.
Replacing a cracked heat exchanger is an important job as it helps prevent carbon monoxide leaks, making it a potentially life-saving task. Heat exchangers play a critical role in ensuring the safe and efficient operation of furnaces in homes and businesses. So it's important to understand the steps necessary to replace a cracked heat exchanger.
The first step is to assess the damage to the heat exchanger. If the heat exchanger is cracked, it should be replaced. It is important to note that some heat exchangers may have a limited amount of life remaining even if they appear to be in good condition, so it is wise to check with a qualified HVAC technician to make sure the heat exchanger needs to be replaced.
The second step is to purchase a replacement heat exchanger. The cost of replacement heat exchangers varies widely depending on the make and model of the furnace, as well as the size of the heat exchanger. Generally speaking, replacing a heat exchanger can cost anywhere from $150 to $600, depending on the size and model of the furnace. It is important to check the warranty document carefully to ensure that the cost of the parts and labor are covered under warranty.
The third step is to remove the old heat exchanger. This should be done by a qualified HVAC technician, who will be able to safely and properly remove the old heat exchanger. In most cases, the technician will need to access components of the furnace such as the blower motor, burner box, and plenum in order to gain access to the heat exchanger.
The fourth step is to install the new heat exchanger. This should also be done by a qualified HVAC technician who will need to inspect the new heat exchanger for any signs of damage before installation. The technician should also take the time to check for any signs of wear or damage to the components of the furnace that had to be removed in order to gain access to the heat exchanger. Once everything is in place, the technician can then install the new heat exchanger and check for proper operation.
the fifth step is to check the furnace for proper operation. The technician should turn the furnace on and check the blower motor and all other components of the furnace for proper operation. If there are any issues, the technician can then diagnose the problem and take the necessary steps to resolve it. This is also the time to check for any leaks or other issues with the heat exchanger.
Replacing a cracked heat exchanger is an important task and can be a potentially life-saving measure. It is important to always consult a qualified HVAC technician to ensure that the work is done properly and safely. The cost of replacing a heat exchanger will also vary based on the make and model of the furnace, but it is typically between $150 and $600. Taking the time to consult a qualified technician and properly install the new heat exchanger is a crucial step in ensuring the safe and efficient operation of your furnace.
Heat exchangers are an integral part of many home and industrial systems, performing the dual task of transferring heat from one area to another while also protecting the system from outside contamination. Generally speaking, the lifespan of a heat exchanger greatly depends on the type of material used, the condition of the unit, and the type of environment it is put in. A well-maintained heat exchanger can last up to 30 years, depending on the material used.
Stainless steel heat exchangers, with proper maintenance, can last 30 years or more. Copper-brass and cupronickel heat exchangers will usually last 10 to 15 years, depending on the environment and type of fluid being used. Aluminum heat exchangers generally last between 5 and 10 years, although this can also depend on the environment and fluid. Teflon-coated heat exchangers are usually only rated for five years.
No matter the material used, the greatest influence on the longevity of a heat exchanger is proper maintenance. This includes regular inspections for corrosion, leaks, and wear. It is important to treat any problems as soon as they are found, as allowing them to linger can lead to further damage and shorter lifespans. Additionally, it is important to use the right type of heat exchanger for the job; using a heat exchanger that is not designed to handle the specific environmental conditions can lead to premature failure.
Heat exchangers are an essential part of many systems, and understanding their lifespan helps to ensure that they continue to perform as intended. With proper installation and maintenance, heat exchangers can provide many years of reliable service. If you are considering replacing a heat exchanger, it is important to research the type of material that will best suit your system, and make sure to keep up on regular inspections and maintenance to maximize its lifespan.
When it comes to replacing a heat exchanger, it's important to consider the cost-effectiveness of the repair. It is often more cost-effective to replace the heat exchanger than to purchase a brand-new furnace. This is because the cost of a new furnace can be extremely high, while the cost of replacing a heat exchanger may be relatively low. In addition, the cost of the repair can often be recouped through energy savings. By replacing the heat exchanger, homeowners can increase their furnace's efficiency, which can lead to significant savings on their energy bills.
Replacing the heat exchanger can be a relatively simple process, but it's important to hire a professional to do the job. A professional can accurately assess the condition of the heat exchanger and accurately estimate the cost of the repair. In addition, it's important to use a quality heat exchanger unit to ensure that the furnace is as efficient as possible. This can help to save even more money on energy bills in the long run.
It is also important to consider the age of the furnace when deciding whether it is cost-effective to replace the heat exchanger or buy a new furnace. If the furnace is more than 10 years old, it might be more cost-effective to replace the heat exchanger than to purchase a new furnace. On the other hand, if the furnace is newer, it might be more cost-effective to purchase a brand-new furnace. Homeowners should discuss their options with a professional and consider the pros and cons of each decision.
Replacing a heat exchanger can be the most cost-effective solution to the problem of a malfunctioning furnace. However, it's important to weigh the cost of the repair against the cost of buying a new furnace. By considering the age of the furnace, the cost of the repair, and the potential energy savings, homeowners can make an informed decision and decide which is the more cost-effective option.
Replacing a heat exchanger is an expensive yet necessary appliance repair. The cost of the repair depends on the make, model, type, and size of your heat exchanger. Heat exchangers are available in various sizes, from small residential units to large commercial models. Similarly, some heat exchangers are made of copper, while others use steel or aluminum. The size and material also dictate the cost of replacing your heat exchanger.
Generally, the average cost of replacing a heat exchanger ranges from $400 to $1,000. This includes the cost of the heat exchanger itself and the labor involved in the repair. In some cases, a technician may also need to replace additional components, such as pipes or heater elements, which can increase the overall cost. If the heat exchanger is located in a difficult to access area, the cost of the repair may be higher as well.
The cost of heat exchanger replacement also varies according to the make and model of the heat exchanger. For instance, replacing a standard model of a heat exchanger may cost significantly less than replacing a high-efficiency model. Additionally, replacing a heat exchanger in an older unit can be costlier than replacing one in a newer unit, as more time and resources may be required to source a compatible model.
In some cases, you may be able to reduce the cost of replacing your heat exchanger by shopping around for the best deals. Be sure to compare costs from multiple suppliers and ask for any discounts or special offers that may be available. You can also try contacting the manufacturer of your heat exchanger, since they may be able to provide a more affordable replacement option.
Heat exchanger replacements can be expensive, so it’s important to weigh the cost of the repair against the cost of a complete unit replacement. In many cases, replacing a heat exchanger with a new unit can be more cost-effective than a repair. Consider how often the unit is used and the age of the appliance before making a decision about the best course of action.
The type of heat exchanger that needs to be replaced is a critical factor when determining the cost of replacement. Depending on the size and complexity of the device, as well as the materials used in its construction, the cost of replacement can vary drastically. A standard plate and frame heat exchanger will generally cost much less than a shell and tube heat exchanger, or a brazed plate heat exchanger. Furthermore, the type of fluid being exchanged, the potential for corrosion, and the operating pressure and temperature can all have an effect on the cost of replacement. Additionally, a custom-made device may cost more than a standard heat exchanger, depending on the design specifications.
The replacement cost for a heat exchanger can also depend on the location of the device and the availability of the necessary equipment and technicians to perform the installation. For example, replacing a heat exchanger located in a remote area may require additional expenses for transportation and accommodations. Similarly, there may be additional expenses related to hazardous or specialized materials, or any special permits or licenses required for the installation.determining the total cost of replacing a heat exchanger requires an analysis of the type of device, the materials used, and the location of the installation. Depending on the complexity of the project, the replacement cost may range from relatively affordable to prohibitively expensive.
When considering the cost of replacing a heat exchanger, it is important to find out if the current heat exchanger is still under warranty. If the heat exchanger is indeed under warranty, then the cost of the replacement may be significantly cheaper or even free if the manufacturer agrees to replace the unit at their own expense.
On the other hand, if the heat exchanger is not under warranty, then the cost of replacing it can be quite expensive depending on the type of equipment and the manufacturer. The cost of a heat exchanger can range from hundreds to thousands of dollars. In addition, the cost of labor and potential additional parts that may be needed to install the new heat exchanger need to be taken into account as well.
It is important to understand the warranty coverage of your heat exchanger before considering the costs of replacing it. If the cost of replacement is feasible, then the decision to replace the heat exchanger should be made. Otherwise, potential repairs may be more cost-effective and less time consuming.
The type of material used to construct a heat exchanger is an important factor to consider in determining the cost of replacement. Metal materials such as copper, stainless steel, aluminum, and titanium are common choices due to their durability and relatively low cost. However, each material has its own advantages and disadvantages when used for a heat exchanger. For instance, copper is known for its excellent thermal properties but may be too expensive for some applications, while stainless steel and aluminum are less expensive and easier to solder but do not have the same thermal properties. Titanium is lightweight and has the highest thermal efficiency, but it is also the most expensive material, so may not be a feasible option if cost is an issue. Additionally, other materials such as ceramic, plastic, and composite can also be used, depending on the application's specific needs. Ultimately, the type of material used can have a significant impact on the cost of replacing a heat exchanger.
Yes, there are additional labor and materials associated with the replacement of a heat exchanger. Depending on the model of heat exchanger being replaced, the cost can be higher or lower depending on the complexity of the system. Labor costs may also vary, depending on the type of heat exchanger being installed, as well as the labor rate of the technician performing the work. In some cases, additional materials may be necessary to complete the installation, such as additional hoses, fittings, piping, insulation, or other components. Additionally, the overall quality of the heat exchanger and the new installation should be taken into account when considering the cost of replacement.
How long is the expected lifespan of the replaced heat exchanger?
The expected lifespan of a replaced heat exchanger depends on the quality of the unit, its installation, and the environment in which it is being used. Generally, a heat exchanger can last between five to fifteen years. However, the lifespan of a heat exchanger can be significantly shorter if the unit is not properly installed or maintained. Furthermore, if the environment in which the heat exchanger is being used is particularly harsh, then the expected lifespan of the unit is liable to be shorter. Therefore, the expected lifespan of a replaced heat exchanger can vary depending on its quality, installation, and the environment in which it is used. In order to ascertain the expected lifespan of a heat exchanger, it is best to consult the manufacturer of the particular unit.The expected lifespan of a replaced heat exchanger depends on the quality of the unit, its installation, and the environment in which it is being used. Generally, a heat exchanger can last between five to fifteen years. However, the lifespan of a heat exchanger can be significantly shorter if the unit is not properly installed or maintained. Furthermore, if the environment in which the heat exchanger is being used is particularly harsh, then the expected lifespan of the unit is liable to be shorter. Therefore, the expected lifespan of a replaced heat exchanger can vary depending on its quality, installation, and the environment in which it is used. In order to ascertain the expected lifespan of a heat exchanger, it is best to consult the manufacturer of the particular unit.
The cost of replacing a heat exchanger can vary greatly depending on factors such as the type of exchanger, the size and complexity of the system, and the complexity of the installation. Generally, replacing a heat exchanger will cost anywhere from around $500 to over $10,000. It is important to note that the cost of replacement does not include the cost of any additional parts or labor needed to complete the job. It is always recommended to get multiple quotes from qualified contractors in order to find the best deal for your replacement needs. With the varying costs involved in replacing a heat exchanger, it is important to do plenty of research to find the best replacement option for you.
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