The crisp air of fall is a signal: winter’s cold is on the way. Before the first deep freeze hits Northeast Ohio, it’s wise to give your furnace some care so it runs reliably, efficiently, and safely all season.
As part of the KW Lang Mechanical tradition of quality HVAC service in the Cleveland area since 1927, we’ve compiled key steps every homeowner can take this fall to protect their heating system and prevent costly breakdowns.
Replace or Clean the Air Filter
Over the off-season, dust and debris collect in your system. A clogged filter restricts airflow, forcing the furnace to work harder. This not only reduces efficiency but can also cause overheating or premature wear. Swap in a fresh filter before winter begins and check it monthly throughout the heating season. A clean filter improves indoor air quality and keeps your system running smoothly.
Test and Inspect the Thermostat
Your thermostat is the control center for your furnace. Make sure it powers on, reads temperatures accurately, and switches modes reliably. Compare the displayed temperature to a separate indoor thermometer to confirm accuracy. If your thermostat uses batteries, replace them now. A faulty thermostat can make your furnace cycle unnecessarily or leave your home uncomfortable.
Clear the Area Around the Furnace
Furnaces need room to breathe. Remove any stored items, boxes, or debris from around the unit. Clutter not only blocks airflow but also increases fire risk. Inside the home, check vents and registers to confirm they are open and unblocked. Adequate airflow ensures balanced heating throughout your home and reduces strain on the blower motor.
Inspect the Ignition System and Burners
The ignition system and burners are vital for efficient combustion. A steady blue flame indicates proper operation, while a flickering or yellow flame may signal a problem. Check that burners are free from soot, dust, or corrosion. If you use a pilot light, ensure it ignites reliably. For electronic ignitions, test startup to catch potential issues early.
Check the Venting and Flue System
Proper venting is critical for safety. Inspect the flue for blockages, corrosion, or loose connections. Any gaps can allow dangerous gases like carbon monoxide into your home. Ensure exterior vents are clear of leaves, nests, or snow buildup. It’s also smart to test your carbon monoxide detectors at this time of year for peace of mind.
Evaluate Ductwork and Insulation
Leaky ducts can waste up to 30% of heated air. Walk through basements, attics, and crawl spaces to check for loose duct joints or unsealed connections. Sealing leaks with mastic or foil-backed tape improves efficiency and helps deliver consistent warmth. Also confirm insulation around ducts and the furnace area is intact so less heat is lost to unconditioned spaces.
Run a Test Heating Cycle
Before temperatures dip too low, run the furnace for a short heating cycle. Listen for unusual sounds like grinding, squealing, or rattling, which may indicate worn belts or bearings. Confirm that warm air flows evenly through your vents. Addressing these issues in the fall prevents inconvenient and costly repairs during the middle of winter.
Schedule a Professional Tune-Up
While many maintenance tasks can be handled by homeowners, a professional inspection ensures deeper peace of mind. During a fall tune-up, a licensed technician will:
- Inspect electrical connections and tighten them if needed
- Measure gas pressure and test combustion safety
- Check and calibrate thermostat operation
- Verify airflow and blower performance
- Examine the heat exchanger for cracks or corrosion
This expert service helps maintain warranties, improves energy efficiency, and ensures your furnace is ready for heavy use.
Prepare Your Furnace for a Worry-Free Winter
Preventative maintenance isn’t just about preventing breakdowns — it’s about efficiency, safety, and comfort. By replacing filters, inspecting critical components, and scheduling a professional tune-up, you’ll enjoy reliable warmth and lower energy costs throughout the coldest months.
For nearly a century, KW Lang Mechanical has helped Cleveland-area homeowners prepare their furnaces for Ohio’s demanding winters. Contact us today to schedule your fall furnace maintenance and keep your home warm, safe, and comfortable all season long.
