Thinking about a furnace replacement? Don’t stress—doing a little homework now can save you time and money later. Here’s what to know.

When to Replace a Furnace

Even if your furnace still runs, it might be time to replace it. Here’s why:

Age

Most furnaces last 8–12 years. After that, they often become less efficient or stop working altogether.

Efficiency

If your heating bill keeps rising and your usage hasn’t changed, your furnace could be the problem. Clogged vents, old filters, and worn-out parts can all make it work harder—and cost you more.

What to Do Next

Start with a professional furnace tune-up and efficiency evaluation.

  • A tune-up will tell you what parts are close to failing—and whether a repair or replacement makes more sense.
  • An efficiency test checks your ductwork and vents. A score under 90% means your furnace is wasting energy—and money.

When to Replace

Fall is the best time. The weather is cool enough to test your system but not cold enough to risk frozen pipes if your heat goes out during installation.

Furnace Replacement Cost

Here’s what affects the price of a new furnace:

Efficiency

  • Mid-efficiency (80–89%): $1,500–$2,500
  • High-efficiency (90–97%): $3,000–$5,000

ENERGY STAR-certified models may cost more upfront, but they save money over time—and might qualify for rebates or tax credits.

Size

Use a BTU calculator to find the right size furnace for your home. All you need is your location and square footage.

Gas vs. Electric

Gas furnaces cost more upfront but less to operate. Electric ones are cheaper to install but more expensive over time.

Other Costs

You may need to upgrade ductwork or replace old vents. Also, ask if the installer will remove the old furnace for free.

How to Save Money

Research goes a long way. Here’s what to check:

  • Your current unit: Look for warranties, recalls, or local code requirements.
  • The installer: Installation is 60% of the cost. Choose a licensed, experienced professional with strong reviews and a warranty.
  • Reviews: Use your judgment. Negative reviews are more common, but not always reliable. Look for patterns that seem fair and fact-based.

Financing Options

You don’t have to pay all at once. Many companies offer:

  • Financing plans
  • Energy rebates
  • Tax incentives
  • Rent-to-own options (best for low-credit buyers, though total costs may be higher)

It never hurts to ask for a deal or a bundled discount.

Protect Your Investment

Once your new furnace is in, take care of it:

  • Change filters regularly.
  • Schedule a professional tune-up once a year.
  • Keep your warranty info handy.

You can also protect your home systems with America’s Preferred Home Warranty. We offer 24/7 customer support and coverage for your furnace and more. Call 888.351.3681 to learn how we can help.

Click HERE to get your free quote today!