Signs You Need to Replace Your Furnace

Replace Your Furnace

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Your furnace is an essential part of keeping your home comfortable. Unfortunately, people often miss the early warning signs that they need to replace their furnaces.

This can cost time, hassle, and money on your energy bills. Regular maintenance and inspections can increase the lifespan of your furnace because, rather than opting for replacement, a simple furnace repair could be all it takes.

Here are the main signs that you need to replace your furnace.

Your Furnace is More than 20 Years Old

There’s significant debate over how long a furnace should last. On average, a well-maintained furnace should last for twenty years before it needs to be replaced.

Even if your furnace is still operating after 20 years, it’s wise to invest in a replacement to maximize efficiency and to take advantage of the latest technology.

Your Heating Bills are Increasing

Perhaps the biggest sign that a furnace is about to come to the end of its natural lifespan is rising heating bills. Rising heating bills could mean that your air ducts are not properly sealed, or it could mean that the internal parts of your furnace are beginning to wear out.

Older furnaces cause your heating bills to rise because they need to work harder to maintain your desired temperature.

Hire a professional if you notice a spike in your heating bills.

Your Furnace Needs Regular Repairs

If during the last two years you have had to carry out more than a couple of repairs per year, it is time to get a new furnace.

The cost of regularly repairing your furnace will quickly surpass the cost of a new furnace. Compare prices to see if it’s a cost-effective decision to make.

An easy way to tell whether it’s worth purchasing a new furnace is if the repair bill is more than 50% of the cost of a new furnace.

Your Furnace Makes Strange Noises

The running costs of a furnace make up almost 51% of a home’s energy consumption, alongside air conditioning. A telltale sign that your furnace is becoming problematic is to listen to the sounds it’s making.

Rattling, popping, and banging are just some of the sounds your furnace should never make. Furthermore, if your blower appears to be turning itself on and off regularly, this is another sign that your furnace needs to be completely replaced.

Your Furnace is No Longer Keeping You Comfortable

Do you frequently find that your rooms are too hot or too cold? Are you adjusting your thermostat every few minutes to reach your desired temperature?

This means your furnace is no longer distributing heat properly around your home. While it could indicate that your thermostat is faulty, in most cases, it’s a sign that your furnace must be replaced.


The cost of a new furnace can be expensive, but in the long-term investing in a new furnace could save you money. Whether you’re bleeding money on biannual repair bills or higher heating bills, it’s time to consider upgrading to a modern furnace.

Contact an HVAC professional in your local area for a full inspection of your home’s furnace.