Man correctly installing an air vent

Four Essential Furnace Maintenance Tips

In colder climates, having a well-functioning home furnace is essential. Although furnaces typically remain unused during spring and summer, homeowners should still perform regular inspections and maintenance to ensure that their heating system is in good working order when winter arrives. Here are four essential furnace maintenance tips.

Clean or Replace Air Filters

An HVAC system is only as healthy as its air filters. Dirty filters can do severe damage to entire heating and cooling systems, from reducing their efficiency and performance to even causing the whole system to break down. Homeowners should check all air filters at least once a month and clean or replace filters that have become dirty and clogged.

Keep Air Registers and Exhaust Pipes Clear

Like air filters, furnace air registers and exhaust pipes must also be kept clean and clear of blockages. If an air register is clogged or blocked by household objects, the furnace won’t be able to heat the house evenly and efficiently. If outdoor exhaust pipes are blocked, heat and air from the furnace won’t have an escape, which is a safety hazard.

Check CO Detectors

Carbon monoxide leaks are dangerous and potentially life-threatening emergencies. It’s therefore vital to ensure that all CO detectors are up-to-date and in good working order. Replace batteries regularly, and keep extras on hand just in case they’re needed, especially during winter when the furnace will be used frequently.

Schedule Professional Maintenance

Although homeowners can do a lot on their own by inspecting and maintaining their furnace throughout the year, scheduling annual professional HVAC maintenance is also important. An experienced HVAC technician can identify and address problems that homeowners often overlook. Professional inspections, seasonal maintenance, and replacements help to keep entire HVAC systems running efficiently and safely all year long.

By performing simple maintenance throughout the year, homeowners can have a healthy, efficient furnace for winter. At Northfield Heating and Air, we offer furnace installations and repairs to keep your home safely and effectively heated during suburban Chicago’s icy winters. To learn more, or to schedule service, contact us by calling (847) 251-2740 today.


08/18/21 by Dean Phillips

My mother called me up last Friday night and told me about how her heating has not been working these past few days. She wants to hire heating system services to which I told her I would help her with some research. Fortunately for her, I came across your amazing article here. I am very impressed with where you explained that if an air register is clogged or blocked by household objects, the furnace won’t be able to heat the house evenly and efficiently. A good point indeed, one I'm sure those like my mother will be glad to have learnt of. Thank you for this! I'll share this with her in a bit!

09/07/21 by Green Dallas

The efficiency and performance of my home ac unit is declining day by day. I clean the air filter 3 to 4 times a year. But you mentioned here the air filter should be cleaned once per month. I think I made a mistake here. I should have cleaned the air filter at least 6 times a year. Many thanks for presenting beautiful and useful information.

10/04/21 by Eve Mitchell

I liked what you said about making sure to clear our air register and exhaust pipes so your furnace can run properly. I am thinking about getting my heating system maintenanced. I think It'll be nice to have it running at full efficiency.

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