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When to Replace Your Furnace: Key Signs to Look For


Knowing when to replace your furnace can save you from unexpected breakdowns and high energy bills. In this article, we'll discuss the key signs that indicate it's time to replace your furnace, the benefits of upgrading, and introduce you to two top furnace models from Lennox. We'll also cover cost considerations and tips for choosing the right HVAC contractor for the job.

Signs Your Furnace Needs Replacement

Several signs can indicate that your furnace is nearing the end of its lifespan. Recognizing these signs early can help you plan for a replacement before a complete failure occurs:

Age: Most furnaces have a lifespan of 15-20 years. If your furnace is within this age range or older, it may be time to consider a replacement.

Frequent Repairs: If you find yourself frequently calling for repairs, it might be more cost-effective to invest in a new furnace rather than continually fixing an old one.

Rising Energy Bills: An old or inefficient furnace can cause your energy bills to spike. If you've noticed a significant increase in your heating costs, it may be due to a failing furnace.

Uneven Heating: If some rooms in your home are warmer or cooler than others, it could be a sign that your furnace is struggling to distribute heat evenly.

Strange Noises: Unusual noises such as banging, popping, or rattling can indicate serious issues with your furnace. These sounds often mean that internal components are wearing out.

Poor Air Quality: A failing furnace can negatively impact your home's air quality, leading to excessive dust, dry air, or humidity problems.

When to Replace Your Furnace

Replacing an old furnace comes with several benefits that can improve your home's comfort and energy efficiency:

Improved Energy Efficiency: New furnaces are more energy-efficient, which can significantly lower your heating bills and reduce your carbon footprint.

Enhanced Comfort: Modern furnaces provide more consistent and reliable heating, ensuring your home stays comfortable during the cold months.

Better Air Quality: New furnaces often come with advanced filtration systems that can improve the air quality in your home, reducing allergens and dust.

Increased Home Value: A new, efficient furnace can increase the value of your home, making it more attractive to potential buyers.

Reduced Maintenance Costs: New furnaces are less likely to require frequent repairs, saving you money on maintenance and extending the lifespan of your heating system.

Top Furnace Models to Consider

When it's time to replace your furnace, choosing the right model is crucial. Here are two top models from Lennox that offer excellent performance and efficiency:

The Lennox EL296E Gas Furnace is designed for high efficiency and reliable performance. Key features include:

  • Two-Stage Heating: This model offers two stages of heating for enhanced comfort and efficiency. It adjusts heat output based on your home’s needs, providing consistent temperatures.

  • Efficiency: With an AFUE rating of 96%, the EL296E can significantly reduce your energy bills by converting most of its fuel into usable heat.

  • Quiet Operation: The EL296E operates quietly, ensuring minimal disruption in your home.

  • Durability: Built with high-quality materials, this furnace is designed for long-lasting performance and reliability.

The Lennox ML296V Furnace is another excellent choice for homeowners looking for efficiency and comfort. Notable features include:

  • Variable Speed Motor: The ML296V features a variable speed motor that adjusts airflow for maximum comfort and energy savings.

  • High Efficiency: With an AFUE rating of 96%, this furnace provides efficient heating while keeping energy costs low.

  • Comfort Control: The variable speed motor enhances humidity control and ensures even temperatures throughout your home.

  • Robust Construction: Designed for durability, the ML296V offers reliable performance and a long lifespan.

When to Replace Your Furnace

Cost Considerations for Furnace Replacement

Replacing a furnace is a significant investment, but understanding the costs involved can help you budget effectively. Key factors that affect the cost of furnace replacement include:

Furnace Type and Model: Higher efficiency models and those with advanced features will typically cost more upfront but offer long-term savings on energy bills.

Installation Costs: Professional installation ensures your furnace operates correctly and safely. Installation costs can vary based on the complexity of the job and your home's specific requirements.

Additional Upgrades: You may need to upgrade other components of your HVAC system, such as ductwork or thermostats, which can add to the overall cost.

Rebates and Incentives: Look for rebates and incentives from manufacturers, local utilities, or government programs that can help offset the cost of a new furnace.

Selecting the right HVAC contractor is crucial for a successful furnace replacement. Here are some tips to help you make the best choice:

Check Credentials: Ensure the contractor is licensed, insured, and certified to perform HVAC work in your area.

Read Reviews: Look for customer reviews and testimonials to gauge the contractor's reputation and quality of service.

Get Multiple Quotes: Obtain quotes from several contractors to compare prices and services. Be wary of quotes that are significantly lower than others, as they may indicate subpar work or hidden costs.

Ask for References: Request references from past clients to get firsthand feedback on the contractor's performance.

Evaluate Experience: Choose a contractor with experience in installing the specific furnace model you’ve selected. Experienced contractors are more likely to complete the installation efficiently and correctly.

When to Replace Your Furnace


Knowing when to replace your furnace can prevent unexpected breakdowns and improve your home's comfort and energy efficiency. By recognizing the signs of a failing furnace and considering top models like the Lennox EL296E Gas Furnace and Lennox ML296V Furnace, you can make an informed decision. Partnering with a reputable HVAC contractor ensures a smooth installation process and long-term satisfaction. Stay proactive about your heating needs and enjoy a warm, comfortable home all winter long.


Q: How long does a typical furnace last?

A: Most furnaces have a lifespan of 15-20 years. However, regular maintenance can extend their life.

Q: What is AFUE rating?

A: AFUE (Annual Fuel Utilization Efficiency) rating measures a furnace’s efficiency in converting fuel to heat. Higher AFUE ratings indicate more efficient furnaces.

Q: Can I replace my furnace myself?

A: Replacing a furnace is a complex job that requires professional expertise to ensure safety and proper installation. It’s best to hire a licensed HVAC contractor.

Q: What should I consider when choosing a new furnace?

A: Consider factors such as energy efficiency, heating capacity, features, and cost. Consulting with an HVAC professional can help you choose the best furnace for your home.

Q: Are there financing options available for furnace replacement?

A: Many HVAC companies, including For Saving Home Service Inc, offer financing options to make furnace replacement more affordable. Be sure to ask about available plans and terms. By following this guide and working with a trusted HVAC contractor, you can ensure a seamless furnace replacement process and enjoy a warm, energy-efficient home.


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