Furnace Maintenance Checklist To Save Money This Winter (2024)

If you have not had time all year to tune up your furnace, then fall is a good time to do so before the eventual arrival of winter.

Regular maintenance of your furnace will ensure you have heat when you need it, reduce your heating and repair bills, and prolong the life of your furnace.

While you may need a professional to repair your furnace, you can complete most maintenance tasks on your own without spending a penny.

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Here are eight tasks you need to have on your furnace maintenance checklist to ensure your furnace does not disappoint this winter:

1. Conduct a Visual Inspection

Furnaces are typically in the basem*nt and out of the sight of most homeowners. Maintenance time is a good time to inspect the furnace and check for any telltale signs of trouble or issues.

Some things you may observe that need further attention include signs of black soot, a condensate tube filled with algae, tubes not properly attached, rust, mainly yellow flames, etc.

Your observations may uncover minor issues that can be corrected easily or major issues that may need a specialist to look at.

Note: If you are going to be opening up the furnace cover to look inside, it’s a good idea to first turn off the electrical power and gas supply for your safety!

2. Change the Furnace Air Filter

Changing the air filter in your furnace regularly is one of the most important things you can do to keep it working efficiently. When the filter becomes plugged, the furnace has to work harder to get air moving.

Different filter types come with differing recommended replacement periods, for example, every 1 month, 3 months, or longer. A routinely changed filter can significantly reduce your energy bill by as much as 15%.

Newer thermostats have a reminder option that allows you to set a reminder that alerts you when it’s time to replace the air filter.

Furnace Maintenance Checklist To Save Money This Winter (1)

3. Clean Warm Air Vents and Registers

Floor vents that bring up the warm air into your home may get clogged over time with dust, pet hair, food, and other debris. Remove floor registers and vacuum out the air ducts at least once a year to keep them clean.

Kids can remove registers and fill them with “stuff.” Check that toys are not stuffed down your registers and choking up your furnace.

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4. Check Cold Air Return Vents

Cold air return vents carry back cold air from your house to the furnace for reheating. They often get neglected and may even become blocked or covered as you move furniture around. They can also get dusty.

Vacuum cold-air return registers at least once a year and check that they are not closed off or blocked by other things.

5. Check the Intake and Exhaust Pipes

We can usually find the air intake and exhaust pipes for your furnace located outside your house. They may get plugged with ice, snow, leaves, critters, vegetation, or other debris.

Check them often to ensure that they are not blocked.

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6. Vacuum Accumulated Dust in the Furnace

After a few years of use, dust and dirt may accumulate in your furnace. A vacuum with a long nozzle can get rid of these unwanted visitors.

If you hire a professional to tune up your furnace annually, this is one task they have on their checklist.

7. Check the Main Air Ducts for Leakage

Check the main air ducts that leave your furnace and carry heated air to different parts of your home for leakage. You can easily seal leaks using foil tape or duct mastic.

This ensures you get the full benefit of the warm air leaving your furnace, reduce energy loss and lower your energy bill.

8. Check the Carbon Monoxide Detector

Although not part of your heating and cooling system, it makes sense to install a carbon monoxide detector close to where your furnace is located.

Carbon monoxide is a very toxic gas, and because it’s odourless, you cannot depend on your senses to detect it. At the time of your furnace maintenance, test the detector to ensure it’s in good working order.

If you have a battery-operated carbon monoxide detector, consider replacing the batteries.

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Conclusion

It does not take much time to carry out the simple maintenance tasks mentioned above.

When the cold season arrives, do not forget to turn off your air conditioner and protect it from harsh winter conditions. Having your AC come on in freezing weather can cause serious damage to the compressor.

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Furnace Maintenance Checklist To Save Money This Winter (2024)

FAQs

What is the simplest maintenance you can perform to keep your furnace running efficiently? ›

Change Your Air Filters

Furnace maintenance doesn't always come with a hefty bill; it can be as easy as replacing your air filters regularly! These filters prevent dust and hair from clogging your furnace. With this in mind, an old air filter can accumulate a lot of debris and become dysfunctional.

What is the first thing you check when maintaining a furnace? ›

Clean or replace your filter regularly

Taking care of the filter is one of the most important things you can do for your furnace. As the system circulates air, it filters the air in your home and extracts excess moisture to help control humidity.

How many hours should furnace run in winter? ›

Running 10 to 15 minutes per cycle seems acceptable. So is running as long as 20 minutes. Even running every seven or eight minutes may not be a problem, as other factors could lead to more frequent cycling. Outside temperature, for example, could contribute to how fast or slow the furnace cycles.

Is it bad for furnace to run constantly in extreme cold weather? ›

Unless you also have a heat pump (which can cause your unit to run frequently to maintain a set temperature during extremely cold weather), your furnace should cycle on and off at regular intervals. That being said, if your furnace isn't cycling as usual, this could be due to any number of reasons.

How can I save my furnace? ›

Clean and replace the air filter on your furnace regularly. A dirty or clogged filter will use more energy and heat more slowly. Let the Heat Circulate. Check your furniture, curtains and drapes and area rugs to make sure they are not blocking heat registers and vents.

What is routine maintenance on a furnace? ›

Furnace maintenance or furnace tune-up involves checking, cleaning, adjusting, lubricating, and testing all the system's essential components. Homeowners can choose to get a furnace tune-up at least once every year or before the cold season begins.

How many hours should my furnace run per day? ›

Rather than running constantly, your furnace operates in cycles allowing it to heat your home without constantly being “on.” Generally speaking, your furnace will only be actively producing heat for up to 9 hours a day over multiple cycles.

What is the most efficient temp for furnace in winter? ›

The ideal thermostat temperature in the winter is 68 degrees Fahrenheit when you're at home. Energy.gov suggests that 68 degrees is a good room temperature while you're awake at home but recommends lowering it while you're asleep or away.

Can I clean my furnace myself? ›

Cleaning, changing filters, and lubricating your furnace are fairly straightforward steps in ensuring your unit will work efficiently for the season. It may take you a few hours to become familiar with all of its parts but once you have done it a few times, a furnace cleaning should take 1-2 hours.

What is the average temp for a furnace in the winter? ›

Most recommend keeping your furnace between 68 and 70 degrees. You will find that after about a week at a lower temperature, your body becomes accustomed to it, and it no longer feels cold to you. You will also be surprised what some cozy sweaters, socks, and throws will do to keep you warm and comfortable.

What does a furnace clean and check include? ›

Many HVAC contractors will offer a more basic furnace cleaning package that might include cleaning and inspection of the filter, blower and combustion compartments, fan blades and condensate lines. These types of appointments are likely available for $100 or a little less.

What annual maintenance should be done on a gas furnace? ›

A gas furnace should be serviced at least once a year, preferably, though, in both the spring and the fall. Annual maintenance, including a thorough examination and cleaning of the parts that commonly malfunction, like the air filter, the fan, the pilot light, and the heat exchanger, can usually prevent these problems.

Why is my furnace not heating enough in cold weather? ›

Your system's fan isn't working properly

Your furnace may be producing sufficient heat, but if there is a problem such as a broken blower fan, a clogged air filter, or damaged ductwork, the heated air has no way to get circulated throughout your home.

Why is my furnace not working in the winter? ›

Confirm that the thermostat is set to heat mode. Inspect Power Supply: Make sure the furnace is receiving electricity. Check for a blown fuse or tripped circuit breaker in the electrical panel. Check that the furnace's power switch is on.

Why does my furnace not work when its cold? ›

It could be that the thermostat batteries are low or that there is a wiring issue preventing the thermostat from signaling the furnace to run. Your furnace could also be faulty or not getting an accurate temperature reading and thus not signaling the furnace to run even though your house is cold.

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