4 Tips for Extending the Lifespan of a Gas Furnace

Gas Furnace Issue

Once your furnace reaches the 15-year mark, it may be time to consider replacing it. Properly maintained gas furnaces should last an average of 15-20 years, but if you’re facing a pricey repair and your furnace is older, it might make more sense to put the money toward a newer, more efficient model. By staying on top of regular maintenance and tune-ups, you can ensure that your furnace will last as long as possible. Here are four tips to help:

  1. Perform Regular Maintenance

Regular maintenance of your heating system is important to ensure its longevity. Before you turn the system on for the first time each fall, it is recommended that you get a furnace tune-up. During this tune-up, technicians will carefully inspect all system components, clean any necessary parts, and check for any minor issues that could become bigger in the long run.

  1. Replace Air Filters Regularly

It is important to replace the furnace filter regularly, usually about every three months. This helps to ensure the furnace does not have to work harder, reducing the amount of wear and tear and saving energy costs. The exact time to change the filter may vary, so check the manufacturer’s guidelines for the specific model. When the filter becomes clogged or dirty, it should be replaced immediately.

  1. Prevent Air Leaks By Closing Gaps

The warmth generated by your furnace can be substantially reduced due to air escaping throughout your home. It has been estimated that up to 25 percent of the energy used to heat your living space can be lost due to leaky ducts. If you suspect your ducts are not sealed properly, contact a professional HVAC technician to inspect them. Furthermore, some simple steps, such as caulking and weatherstripping your doors and windows and sealing any gaps near your flue or chimney, can help prevent air loss.

  1. Install a Smart Thermostat in Your Home

If you consistently keep your home at the same temperature even when you are away, you are paying too much for heating costs. Installing a smart or programmable thermostat can help you save money on heating costs by allowing you to set temperatures based on your schedule. You can save up to ten percent on heating costs by turning the thermostat back seven to ten degrees when you are not home for eight hours a day.

When to Replace Your Gas Furnace When Repair No Longer Works

If your furnace is older than 15 years, costs you more energy bills, no longer keeps your home comfortable, and constantly needs repairs, then it may be time to consider replacing it with a new gas furnace. You can avoid a complete system breakdown during the coldest days of the year by replacing your old furnace with a new one. 


A gas furnace is a major investment in your home, and its proper maintenance can tremendously impact its longevity. Paying attention to the thermostat settings, keeping the furnace area clear, and inspecting the ductwork can also help to keep the furnace running efficiently for many years. By taking these simple steps, you can extend the lifespan of a gas furnace and protect your investment for many years to come.

Daikin Dealers Toronto provides affordable, reliable repairs and installation services on all Daikin furnaces, air conditioners and heat pumps. With a dedication to helping to create the perfect home ecosystem, we specialize in state-of-the-art HVAC solutions, promising enhanced control, efficiency, and superior air quality. Enjoy exceptional comfort in any space in your home, in any season. Get in touch with us if you need a Daikin gas furnace repair service!

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