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.

Table of Contents Show

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.

Related: 10 Ways To Prepare Your Car for Winter

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.

Related: 4 Ways To Pay Off Your Mortgage Faster

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.

Related: Are Winter Tires Compulsory in Canada

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.

Furnace Maintenance Checklist To Save Money This Winter (2)
Furnace Maintenance Checklist To Save Money This Winter (2024)

FAQs

How can I help my furnace in the winter? ›

Make sure air vents and radiators are not blocked or obstructed. Keep furnace vents leading outside near ground level clear of snow or ice. If you have a fireplace without glass doors, don't use it during extreme cold weather since most of the heat goes up the chimney. Utilize ceiling fans to push warm air down.

How do I service my furnace for the winter? ›

  1. Change Furnace Filter. ...
  2. Change Thermostat Batteries/Reprogram Thermostat. ...
  3. Clear Furnace Flue and Surrounding Clutter. ...
  4. Routine Maintenance and Safety Check. ...
  5. Get Your Ducts in a Row.
Nov 24, 2020

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 routine maintenance is required for a furnace? ›

Schedule Regular Checkups

Check vents, flues, and intakes for blockages and free flow of air. Inspect the heat exchanger and blower. Lubricating and inspecting moving parts, such as the blower fan. Performing electrical checks on furnace components and electrical connections.

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? ›

If your heating cycle is consistently over 20 minutes, however, it could be a sign something is wrong. In fact, both excessively long and short heating cycles could be a sign of trouble.

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

But why is 68 degrees the best winter thermostat setting? In winter, heat loss through walls, windows, and doors is a significant contributor to energy wastage. At 68 degrees, your heating system provides enough warmth to counteract this heat loss.

How often should I run my furnace fan in the winter? ›

Furnace fans are designed to run all the time, so there's no need to worry about it failing prematurely. Much of a furnace fan's wear and tear comes from the starts and stops of the motor; keeping it running can eliminate this type of stress.

Do you really need to service your furnace every year? ›

All furnace manufacturers recommend annual maintenance to be performed by a qualified technician. There is also verbiage in their warranties saying that any damage done to the unit because of lack of maintenance will not be covered.

How can I save my furnace? ›

Top 10 Ways to Save Money on Winter Heating Bills
  1. Seal ductwork. This is the number one way to conserve energy. ...
  2. Seal air leaks. ...
  3. Seal off wood-burning fireplaces. ...
  4. Lower the thermostat. ...
  5. Lower water heater to 120-125 degrees. ...
  6. Change furnace filters every month. ...
  7. Weather-strip doors and windows. ...
  8. Add insulation.

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

The filter should be the first place you start. In a forced-air central heating system, the filter plays a critical factor in keeping your furnace clean, efficient, and functional. (Watch our video on how to change a furnace filter.) The furnace filter is located between air supply and the air return of your furnace.

How can I save energy from my furnace? ›

How to Reduce HVAC Energy Consumption at Home
  1. Upgrade Your HVAC System. ...
  2. Schedule Routine Maintenance. ...
  3. Adjust Your Thermostat Settings. ...
  4. Invest in a Smart Thermostat. ...
  5. Add or Update Insulation. ...
  6. Batten Down the Hatches. ...
  7. Replace Your Air Filters.

How do I know if my furnace needs maintenance? ›

In this blog, we list seven common signs that your system needs to be inspected and serviced by an HVAC professional.
  1. Abnormal Furnace Smells. ...
  2. Difficulty Starting the Unit. ...
  3. Discolored Pilot Light. ...
  4. Inadequate Heat. ...
  5. Persistent Noises. ...
  6. Poor Air Quality. ...
  7. Tripped Carbon-Monoxide Detector.
Jan 1, 2017

What does a furnace clean and check include? ›

A clean furnace is a safe furnace. A thorough cleaning includes all components, the blower assembly, fans, pulleys, and belts. Check Connections. All electrical connections should be free from damage and wear to prevent dangerous accidents.

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? ›

Blocked or excessively dirty filters can be the root cause of some of the most common furnace problems in cold weather. Blocked filters impede the free flow of air and therefore your furnace has to work a lot harder. Not only is this bad economically, but it means your home will stay cold for longer.

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 is my furnace not holding temperature in cold weather? ›

Most of the time, the furnace and the thermostat aren't communicating correctly, or the thermostat itself is too old. In both cases, a technician fixes the issue—either through repairs to the system or a thermostat replacement.

Why wont my furnace work in the 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.

Top Articles
Latest Posts
Article information

Author: Saturnina Altenwerth DVM

Last Updated:

Views: 5956

Rating: 4.3 / 5 (64 voted)

Reviews: 95% of readers found this page helpful

Author information

Name: Saturnina Altenwerth DVM

Birthday: 1992-08-21

Address: Apt. 237 662 Haag Mills, East Verenaport, MO 57071-5493

Phone: +331850833384

Job: District Real-Estate Architect

Hobby: Skateboarding, Taxidermy, Air sports, Painting, Knife making, Letterboxing, Inline skating

Introduction: My name is Saturnina Altenwerth DVM, I am a witty, perfect, combative, beautiful, determined, fancy, determined person who loves writing and wants to share my knowledge and understanding with you.