Furnace Maintenance Checklist Before Winter

As the colder months approach and heating season begins, now is an optimal time to ensure your furnace is ready. If your home is in Bucks County, Chester County, Delaware County or Montgomery County, PA, the team at Christian Heating, Cooling, Plumbing & Electrical can perform a full inspection and maintenance to keep your system safe, efficient and reliable.

Why You Should Tune Up Your Furnace Before Winter

• A properly maintained furnace runs more efficiently, lowering energy consumption and reducing wear on components.
• Preventing system failures before sustained cold weather hits saves you from emergency repairs or being without heat.
• Safety is a key concern: inspections help identify hazards such as cracked heat exchangers, gas leaks or blocked vents.

What You Can Do Yourself Ahead of the Pro Visit

Air Filter Check

Replace or clean your air filter before and during the heating season. A clogged filter restricts airflow, stressing your system and raising energy costs.

Thermostat Test

Ensure your thermostat is in “heat” mode, and that it responds when you raise the temperature a few degrees. If it doesn’t, or if readings seem off, a technician from Christian Heating, Cooling, Plumbing & Electrical can calibrate or replace it.

Visual Inspection of Furnace Area

Make sure the area around your furnace is clear of debris or obstructions. Inspect for signs of rust, corrosion, soot buildup or odd smells when you run the system briefly. These may hint at deeper issues.

Check Supply & Return Vents

Ensure all vents and registers are open and unobstructed. Blocked vents restrict airflow and can cause uneven heating or system strain.

What Christian Heating, Cooling, Plumbing & Electrical Will Check During the Professional Tune-Up

Verify Burner & Ignition Performance

Our technicians inspect burners, flame sensors, pilot lights or electronic ignition systems to ensure efficient and safe combustion.

Inspect Heat Exchanger

We check for cracks or corrosion in the heat exchanger, which if undetected can lead to carbon monoxide problems and system failure.

Clean & Lubricate Moving Parts

Motors, fans, belts (if applicable) and other moving components are cleaned and lubricated to reduce friction and extend lifespan.

Inspect Venting and Flue Systems

Ensuring your furnace’s exhaust and ventilation systems are clear and properly operating is critical for safety and efficiency.

HVAC System Controls and Wiring

We check wiring, controls, thermostats and connections to ensure everything communicates well and there’s no hidden damage or secured-loose wires.

Airflow & Ductwork Assessment

While primarily focused on the furnace, we’ll assess airflow through the system and check for visible duct leaks or blockages that could degrade performance.

When to Schedule the Service

For best results, plan your service in early fall, before the cold snap hits and HVAC companies get busy. If you’ve skipped maintenance for more than a year, or if your system is older than 10–12 years, this year’s check is especially important.

Keeping your furnace in top condition is one of the most effective ways to ensure comfort, safety and energy efficiency throughout the winter. When you’re ready, contact Christian Heating, Cooling, Plumbing & Electrical to schedule your pre-winter furnace tune-up.