Should I replace my 19 year old furnace?

Author: Ms. Briana Kuhlman II  |  Last update: Sunday, March 16, 2025

Furnaces live an average of 18-20 years, depending on if you had it professionally maintained or not. Age isn't everything, though. The cost to keep the furnace running will give you more concrete reasons to replace or not.

Should a 20-year-old furnace be replaced?

Older furnaces need annual check ups. Main thing is the heat exchanger getting a crack, which could lead to fire or carbon monoxide poisioning. 20 years is a good time to start considering a new one but not essential, if the tech that comes to clean the burners sees an issue they will point it out to you.

How inefficient is a 20-year-old furnace?

Unfortunately, at 20 years, no furnace is running as efficiently as it once was. For starters, HVAC repair experts confirm that any furnace that has been in use for 20 years is nearing the end of its lifespan. The components of a 20-year-old furnace suffer a lot of wear and tear over the years.

How to tell if a furnace needs replacing?

8 Telltale Signs Its Time To Replace Your Furnace
  1. The Age of Your System. ...
  2. Rising Energy Bills. ...
  3. Excessive Dust, Dirt, Soot or Rust Particles. ...
  4. Home Humidity Problems. ...
  5. Rooms are Heating Unevenly. ...
  6. Furnace Becomes Unusually Noisy or Develops Rattles, Buzzes or Hums. ...
  7. Furnace Has Visible Signs of Rust or Cracks in or Around System.

How much does it cost to replace just a furnace?

A new furnace costs $4,799 on average, but the final total for parts and labor will depend on type of furnace, size of your home, and other factors, like efficiency and brand. Rates may range from $150 to $13,100.

5 Furnace Filter Mistakes That Will Cost You Money!

What time of year is cheapest to replace furnace?

For people taking a proactive approach, doing a furnace replacement during the “shoulder seasons” of spring and autumn may offer lower prices, shorter lead times, and a better selection of products and service appointment availability.

Does homeowners insurance pay for new furnace?

A standard policy typically won't cover the cost to replace your furnace if there was a mechanical problem, but you may be able to add an equipment breakdown endorsement for an additional cost that may provide coverage.

What is the most reliable gas furnace brand?

The 5 Best Furnace Brands
  • Carrier Furnace: Best Warranty.
  • Lennox Furnace: Best Company Reputation.
  • Bryant Furnace: Best for Durability.
  • Trane Furnace: Most Years of Experience.
  • Amana Furnace: Best for Efficiency.

Can a furnace last 30 years?

Yes, furnaces can last up to 30 years, particularly high-quality models with proper maintenance. Factors like regular servicing, timely repairs, and appropriate usage significantly impact their lifespan.

How to know when a furnace is bad?

10 Red Flags That Indicate Your Furnace May Be Failing
  1. Frequent Service Calls. Constantly having to repair your furnace may be the first sign that it's failing. ...
  2. Flu-Like Symptoms. ...
  3. Strange Noises. ...
  4. An Old Furnace. ...
  5. Dry Air. ...
  6. Flame Color. ...
  7. Poor Temperature Control. ...
  8. Higher Utility Bills.

Is a 19 year old furnace old?

Your furnace has reached "retirement age"

Furnaces live an average of 18-20 years, depending on if you had it professionally maintained or not. Age isn't everything, though. The cost to keep the furnace running will give you more concrete reasons to replace or not.

Will a new furnace lower the gas bill?

One of the main ways that energy-efficient furnaces save you money is by reducing your monthly utility bills. Older furnaces tend to be less efficient, meaning they consume more energy to produce the same amount of heat.

Should I replace my 20-year-old HVAC?

Due to wear and tear over thew years, most 20-year-old air conditioners are only about half as efficient as they were originally. The U.S. Department of Energy (DOE) estimates that with a new sir conditioner, you could save 20% to 40% on your electric bill.

What is the most expensive part to fix on a furnace?

A heat exchanger replacement is often one of the most costly repairs in a furnace, and the expense can sometimes rival that of installing a new furnace. Typical replacement costs vary widely but can easily reach several thousand dollars, especially if labor costs are factored in.

Should I replace my furnace before it dies?

Why You Should Replace It Before it Breaks. On the one hand, replacing a furnace before it breaks can save you money in the long run. Not only will you avoid the cost of an emergency repair, but you'll also be able to take advantage of current furnace models that are more energy-efficient than older models.

Is it better to undersize or oversize a furnace?

Even a slightly undersized furnace will accomplish the job the majority of the time. Taking things down a few sizes will more than likely solve some of your common heating problems like too high of a utility bill while half of your house is blazing and the other half is an icebox.

What is the average cost of a new furnace?

You'll be looking at a different cost depending on the location of the furnace, the size of your home, and the type of furnace. But the average cost per unit can range anywhere from $2,672 - $6,575. The national average is $4,820 - $9,350 for a full furnace installation.

How long does it take to replace an old furnace with a new one?

4-8 hours. Furnace installation in a residential home usually takes 4-8 hours, depending on the complexity of the job. Additional time may need to be added to account for ductwork, electrical, or gas line modifications to properly match the new equipment.

How do you know when your furnace needs to be replaced?

5 Warning Signs that You Need to Replace Your Furnace
  1. #1: Your furnace is old. ...
  2. #2: You're spending more on more frequent furnace repairs and maintenance. ...
  3. #3: It's not keeping your house warm. ...
  4. #4: Your energy bills are going up. ...
  5. #5: You notice strange sounds (or smells) ...
  6. What does gas furnace replacement cost?

Is a high efficiency furnace worth the cost?

A furnace with an AFUE rating of 95% will require significantly less fuel (natural gas) to heat your home than a unit with an 80% AFUE rating. While higher-efficiency furnaces tend to cost more upfront, they allow homeowners to save money on heating costs every year.

What is the quietest furnace on the market?

For example, the Lennox SLP98V Variable-Capacity Gas Furnace is at least 50 percent quieter than competitor's furnaces, making the SLP98V gas furnace the quietest furnace you can buy1. SilentComfort™ is achieved by utilizing variable-speed technology. In other words, this furnace has a high and low speed.

Are old furnaces better than new ones?

Furnace technology has advanced significantly in recent years. Modern furnaces are designed to provide more even and efficient heating than past furnaces, which can impact both how your system operates and what you notice about your system.

Is a furnace replacement tax deductible?

The IRS offers several ways for taxpayers to cut their tax bills through investing in certain energy-efficient appliances and home improvements. This can include upgrades like energy-efficient water heaters, furnaces, air conditioners, and similar investments. To claim the credits, you'll need IRS Form 5695.

How much did it cost to replace a furnace?

Electric furnace installation tends to be the least expensive, ranging between $3,000 and $7,000, according to HomeAdvisor. Installing a natural gas furnace falls in the range of $3,800 to $10,000, and an oil furnace ranges $6,750 to $10,0000.

How to afford a new furnace?

Now that you have a general idea of your potential furnace installation cost, let's explore your options for financing a new electric or natural gas furnace installation.
  1. Personal Savings. ...
  2. Home Equity Loan or Line of Credit. ...
  3. Manufacturer or Retailer Financing. ...
  4. Government Rebates and Incentives. ...
  5. HVAC Company Rebates.

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