How Much to Replace Furnace? Find Cost Estimates & Tips

How Much to Replace Furnace

If you’re experiencing problems with your furnace and considering a replacement, you’ll want to know how much it will cost. The cost of replacing a furnace can vary depending on several factors. In this section, we’ll give you an overview of the costs involved and offer some helpful tips to guide you through the process.

Key Takeaways:

  • Replacing a furnace can be costly, with the average cost being around $4,000.
  • The cost will depend on factors such as the type of furnace, size of your home, energy efficiency ratings, and additional installation requirements.
  • Obtaining multiple quotes from reputable HVAC contractors is key to getting a fair price.

Factors Affecting Furnace Replacement Cost

To determine the cost of replacing your furnace, there are several factors that HVAC contractors consider. Understanding these factors can help you estimate the average cost of furnace replacement and plan accordingly.

Type of Furnace

The type of furnace you choose has a significant impact on the overall cost of the replacement. Gas furnaces tend to be the most popular choice due to their cost-effectiveness and efficiency. Electric furnaces are also an option but can be more expensive to operate. Oil furnaces, while less common, may be necessary if your home doesn’t have access to natural gas.

Size of Your Home

The size of your home plays a role in determining the furnace replacement cost. The larger the house, the more powerful the furnace needs to be to heat it. As a result, a larger furnace is likely to be more expensive than a smaller furnace.

Energy Efficiency Ratings

The energy efficiency rating of your new furnace is an important consideration, as it will affect your monthly heating bills. A furnace with a high efficiency rating may be more expensive upfront, but will save you money in the long run by reducing your heating costs.

Additional Installation Requirements

If your existing furnace system requires additional installation work, such as venting or ductwork modifications, this will add to the overall cost of the replacement. The complexity of the installation process will also affect the final bill, as more complex systems require more time and expertise to install correctly.

Types of Furnaces and Their Costs

When replacing a furnace, it’s important to consider the different types available and their associated costs. Here are the most common types of furnaces:

Type of Furnace Cost Range
Gas Furnace $2,500 to $7,500
Electric Furnace $1,500 to $4,500
Oil Furnace $4,000 to $7,500

Gas furnaces are the most common type, and typically have the lowest operating costs. Electric furnaces are generally less expensive to purchase, but can have higher operating costs depending on electricity rates in your area. Oil furnaces are less common and typically more expensive to install and operate.

It’s important to note that these are just estimated costs and can vary depending on factors such as the size of your home, the energy efficiency rating of the furnace, and any additional installation requirements.

Additional Costs to Consider

When budgeting for a furnace replacement, it’s important to factor in any additional costs that may arise.

Replacing Air Conditioning Unit

If your air conditioning unit is connected to your existing furnace system, you may need to replace it at the same time.

Type Cost
Central Air Conditioning $3,000 – $7,000
Ductless Mini-Split System $3,000 – $5,000

Keep in mind that these costs are in addition to the cost of the furnace replacement.

Permits and Inspections

Some cities or municipalities require permits and inspections for furnace replacements. These costs vary depending on your location, but typically range from $50 to $300.

Ductwork Modifications

If your existing ductwork is not compatible with your new furnace, you may need to make modifications. This can cost anywhere from $30 to $40 per linear foot of ductwork.

By factoring in these additional costs, you can more accurately budget for your furnace replacement project.

Getting Furnace Replacement Quotes

When it comes to furnace replacement, it’s important to get accurate quotes from reputable HVAC contractors. Here are some tips to help you obtain and compare quotes:

  1. Research local contractors: Look for HVAC contractors in your area and read reviews from previous customers. Make sure they are licensed and insured.
  2. Request quotes in writing: Once you narrow down your list of potential contractors, ask for written quotes that include a detailed breakdown of costs.
  3. Compare quotes: Don’t just go with the cheapest option. Look at the breakdown of costs and compare the quality of the equipment and services offered.
  4. Ask about warranties: Make sure you understand the warranty for the new furnace and any associated labor.

By taking the time to research and compare quotes, you can find a reputable HVAC contractor who will provide a fair and accurate estimate for your furnace replacement needs.

Tips for Affordably Replacing Your Furnace

Replacing a furnace can be a significant investment, but there are ways to make it more affordable. Here are some tips to help you save money on furnace replacement:

1. Explore Financing Options

Many HVAC contractors offer financing options to help spread out the cost of replacing a furnace over time. These may include a zero-interest credit card or a personal loan with a low interest rate. Be sure to read the terms and conditions carefully to avoid high interest rates or hidden fees.

2. Take Advantage of Energy Rebates

Some states and local utility companies offer rebates or other financial incentives for upgrading to an energy-efficient furnace. Check with your local utility company or visit the Energy Star website to see what rebates are available in your area. These rebates can significantly reduce the overall cost of furnace replacement.

3. Consider Long-Term Savings

While energy-efficient furnaces may cost more upfront, they can save you money in the long run by reducing your monthly energy bills. In fact, upgrading to a more efficient furnace can save you up to 20% on your heating costs. Over time, the savings can offset the initial expense of the new furnace.

4. Shop Around for the Best Price

Obtaining multiple quotes from reputable HVAC contractors can help you ensure you are getting a fair price for your furnace replacement. Be sure to compare the quotes carefully and ask for a breakdown of the costs to ensure there are no hidden fees or unnecessary expenses.

5. Consider DIY, But Be Cautious

If you are handy with tools and have experience with HVAC systems, you may be able to save money by replacing your furnace yourself. However, furnace installation can be complex and dangerous, so it’s essential to follow all safety precautions and codes. If you are unsure about any aspect of the installation process, it’s best to hire a professional.

6. Schedule the Replacement in the Off-Season

The demand for HVAC services is highest in the winter and summer months, which can lead to higher prices and longer wait times for furnace replacement. Scheduling your furnace replacement in the spring or fall, when demand is lower, can help you avoid these issues and potentially save you money.

DIY vs. Professional Furnace Replacement

When it comes to replacing your furnace, you may be wondering whether to tackle the job yourself or hire a professional HVAC contractor. While DIY furnace replacement may seem like a cost-effective option, it’s important to consider the potential risks and downsides. Here are some things to keep in mind:

  • Expertise: HVAC systems can be complex and require specialized knowledge and training to install and maintain properly. Unless you have experience in this field, it may be better to leave furnace replacement to the professionals.
  • Safety: Furnaces involve gas, electricity, and other hazards that can cause serious injury or property damage if mishandled. A professional HVAC contractor has the tools, equipment, and training to work safely and minimize the risk of accidents.
  • Code compliance: Proper furnace installation requires adherence to local building codes and regulations. A professional HVAC contractor will be familiar with these requirements and ensure that your new furnace meets all necessary standards.

That said, if you’re confident in your abilities and have the necessary tools and equipment, DIY furnace replacement may be a viable option. Just be sure to research the process thoroughly, follow all safety precautions, and double-check your work to ensure that everything is installed correctly.

When to Hire a Professional

If you’re not comfortable with DIY furnace replacement, or if your furnace requires additional installation work such as ductwork modifications, it’s best to hire a professional HVAC contractor. Additionally, if your furnace is still under warranty, attempting DIY repairs or replacement could void the warranty and leave you responsible for any future issues.

When hiring a professional, be sure to verify their credentials, read customer reviews, and get multiple quotes to compare pricing and services. A reputable HVAC contractor will provide a detailed estimate and be willing to answer any questions you may have about the replacement process.

Signs It’s Time to Replace Your Furnace

Is your furnace giving you trouble? Here are some signs that it’s time to consider a replacement:

  • Your energy bills are skyrocketing without any increase in usage.
  • Your furnace is making strange noises, such as rattling, banging, or whistling.
  • You notice uneven heating in your home, with some rooms feeling excessively hot or cold.
  • There’s a yellow flame instead of a blue one, indicating incomplete combustion and potential carbon monoxide risk.
  • You’re facing frequent breakdowns and costly repairs.
  • Your furnace is over 15 years old and no longer efficient.

Regular maintenance can extend the lifespan of your furnace, but eventually, it will reach a point where replacement makes more sense financially and for your safety. Don’t ignore these warning signs and prioritize the well-being of your household by investing in a new, reliable furnace.

Choosing the Right Contractor for Furnace Replacement

Replacing a furnace is a significant investment, so it’s important to choose the right contractor for the job. Here are some tips to help you find a reputable HVAC contractor:

  1. Check credentials: Look for a contractor who is licensed, insured, and bonded. You can typically find this information on their website or by asking for it directly.
  2. Read customer reviews: Check online review sites like Yelp or Angie’s List to see what other customers have to say about the contractor’s work.
  3. Get referrals: Ask friends, family, and neighbors for recommendations. Word of mouth can be a reliable way to find a trustworthy contractor.
  4. Ask for a written estimate: Before hiring a contractor, ask for a detailed written estimate that includes all costs, including labor, materials, and any permits or fees.
  5. Compare multiple quotes: Don’t just go with the first contractor you find. Get quotes from at least three contractors to ensure you’re getting a fair price.

By following these tips, you can feel confident in your choice of contractor and ensure a successful furnace replacement project.

Maximizing Efficiency and Comfort with a New Furnace

If you’re considering replacing your furnace, upgrading to a new, energy-efficient model can bring numerous benefits to your home. Not only will it ensure optimal comfort during the cold winter months, but it can also reduce your energy bills and lower your environmental impact.

One of the main advantages of a new furnace is improved energy efficiency. Modern furnaces are designed to use less fuel while delivering more heat, which means you can enjoy greater comfort while consuming less energy. This translates into lower monthly bills and a reduced carbon footprint.

In addition, newer furnaces come equipped with advanced features such as variable speed motors, programmable thermostats, and zone control systems. These technologies can help you customize your heating system to suit your needs and preferences, allowing you to achieve optimal comfort levels while minimizing energy waste.

Another benefit of investing in a new furnace is the improved indoor air quality it can provide. Older furnaces can accumulate dust, dirt, and other contaminants over time, which can reduce the quality of the air you breathe. Newer models feature advanced filtration systems that can capture airborne particles and allergens, ensuring cleaner, healthier air for you and your family.

Finally, replacing your old furnace with a new model can add value to your home and improve its resale potential. Prospective buyers will appreciate the convenience and cost savings of having a modern, efficient furnace in place, which can make your home more attractive in a competitive market.


Congratulations! You are now equipped with the knowledge to make an informed decision about replacing your furnace. By understanding the factors that can influence the cost, the different types of furnaces available, and the importance of choosing a reputable contractor, you can ensure a successful and stress-free furnace replacement project.

Remember to keep an eye out for signs that it’s time to replace your furnace, such as rising energy bills, frequent breakdowns, or age-related issues. By upgrading to a new, energy-efficient furnace, you can enjoy improved comfort, lower energy bills, and a reduced environmental impact.

Whether you choose to tackle the project yourself or hire a professional, be sure to explore financing options, take advantage of energy rebates, and consider the long-term savings of energy-efficient models to make the most of your investment.

Thank you for reading, and good luck with your furnace replacement project!

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