Preparing Your Furnace for Chicago Winter: Essential Checklist
Chicago winters are no joke. With temperatures regularly dipping into the teens and occasional wind chills below zero, your furnace needs to be in top shape. Here's your complete pre-winter preparation guide for Burbank and Oak Lawn homeowners.
Why Fall Furnace Prep Matters
A furnace that sits idle for 5-6 months needs attention before the first cold snap. Fall preparation:
- Prevents breakdowns during the coldest days when repair calls surge
- Improves safety by catching carbon monoxide and gas leak risks
- Increases efficiency, reducing energy bills by 10-15%
- Extends equipment life through proper maintenance
DIY Pre-Winter Checklist (30 minutes)
1. Replace or Clean Your Filter
Start with a fresh filter before heating season. Dirty filters:
- Restrict airflow, causing overheating
- Force the blower to work harder
- Reduce efficiency by up to 15%
Action: Install a new filter or clean your washable filter. Check monthly during winter.
2. Test Your Thermostat
- Switch from "Cool" to "Heat"
- Set temperature 5°F above room temp
- Confirm the furnace ignites within 30-60 seconds
- Listen for normal operation (no banging, grinding, or squealing)
Digital thermostats: Replace batteries if applicable.
3. Check Vents and Returns
- Remove furniture, curtains, or storage blocking supply vents
- Vacuum return grilles to remove dust buildup
- Ensure all vents throughout the house are open
Southwest Chicago tip: Many ranch homes here have floor vents. Keep area rugs from covering them.
4. Clear the Area Around Your Furnace
Furnaces need clearance for safety and airflow:
- Remove stored items within 3 feet
- Ensure the area is dust-free
- Check that the furnace door is securely closed
5. Test Carbon Monoxide Detectors
- Press the test button on all CO detectors
- Replace batteries if needed
- If detectors are 7+ years old, replace them
Critical: Homes with gas furnaces should have CO detectors on every floor and near bedrooms.
6. Inspect Exhaust Vents (High-Efficiency Furnaces Only)
If you have a 90%+ efficiency furnace with PVC exhaust pipes:
- Check that outdoor vents aren't blocked by nests, leaves, or debris
- Ensure proper slope (no sagging or standing water)
- Look for cracks or damage to PVC piping
Professional Fall Tune-Up: What's Included?
While DIY maintenance is important, a professional tune-up catches issues you can't see. Our fall furnace service includes:
Safety Checks
- Carbon monoxide testing
- Gas line leak inspection
- Heat exchanger visual inspection
- Flame sensor and igniter assessment
- Proper venting and combustion air
Performance Optimization
- Burner cleaning and adjustment
- Blower motor lubrication (if applicable)
- Belt inspection and adjustment
- Condensate drain cleaning (high-efficiency units)
- Thermostat calibration
Airflow & Efficiency
- Filter replacement
- Static pressure testing
- Ductwork visual inspection
- Return airflow assessment
Post-Service Report
We provide a detailed report showing:
- Current system condition
- Measured operating temperatures
- Safety test results
- Recommendations for any issues found
Fall tune-up pricing: $89-$149 depending on system type and complexity.
Call us at (708) 674-3600 to schedule your fall furnace tune-up
Common Furnace Problems We Find in Fall
1. Cracked or Corroded Heat Exchangers
Why it matters: This is a serious safety issue that can allow carbon monoxide into your home.
Signs: Visible cracks, rust, or soot inside the furnace cabinet.
Solution: Heat exchanger replacement or furnace replacement depending on age and cost.
2. Failed Igniter or Flame Sensor
Why it matters: The furnace won't ignite or will shut down immediately after ignition.
Signs: Clicking sounds but no heat, or furnace starts then stops within seconds.
Solution: Igniter or flame sensor replacement ($180-$380).
3. Dirty Blower Wheels
Why it matters: Reduces airflow, causing short cycling and increased energy use.
Signs: Weak airflow from vents, longer run times, uneven temperatures.
Solution: Professional cleaning during tune-up.
4. Pressure Switch Issues (High-Efficiency Furnaces)
Why it matters: Prevents furnace from igniting safely.
Signs: Furnace tries to start but shuts down before ignition.
Solution: Pressure switch replacement or inducer motor cleaning ($220-$550).
When to Call for Emergency Service
If you notice these issues, don't wait:
- Gas smell: Evacuate immediately and call your gas company
- Yellow or flickering flames: Indicates incomplete combustion and potential CO risk
- Persistent burning smell: Could indicate overheating or electrical issues
- Carbon monoxide alarm activation: Evacuate and call 911
Emergency service available: Call (708) 674-3600 any time, day or night.
Southwest Chicago Climate Considerations
Burbank and Oak Lawn experience:
- Average winter lows: 15-25°F
- Occasional arctic blasts: Single digits or below zero
- Wind chill factor that increases heating demand
- High humidity that affects heating efficiency
Furnace sizing matters: Many homes here have additions or finished basements that strain undersized furnaces. If your system struggles on the coldest days, a load calculation can determine if you need an upgrade.
Financing Your Furnace Replacement
If our fall inspection reveals it's time for replacement, we offer:
- Flexible financing with approved credit
- Seasonal promotions (best deals in fall!)
- High-efficiency equipment rebates
- Clear, upfront pricing
Don't Wait for a Breakdown
Schedule your fall furnace tune-up before the November rush. Same-day appointments available through early November.
Call (708) 674-3600 or call us at (708) 674-3600 today.
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