How Can I Prep My Furnace for Extreme Cold Weather?

When the temperatures plummet, the last thing any homeowner wants is a furnace that can’t keep up. The stress of a potential breakdown isn’t just about comfort; it’s about safety and avoiding expensive emergency repairs. A reliable, well-prepped furnace is your first line of defense against the bitter cold. For over 50 years, Van Drunen Heating & Air Conditioning has been helping homeowners in South Holland and nearby communities keep their furnaces in top shape. Here are some of the best tips we recommend:  

• Replace furnace filters regularly
• Inspect vents and ductwork for blockages
• Test your thermostat’s functionality
• Check the pilot light or ignition system
• Clear the area around the furnace
• Schedule a professional inspection 

Let’s explore why preparing your furnace is essential and how these tips can become part of your routine.

Why Does My Furnace Struggle in Really Cold Weather?

Your furnace works harder during extreme cold primarily because the demand for heat skyrockets, forcing it to run almost constantly to maintain a comfortable temperature in your home. This continuous operation can strain aging components and expose weaknesses in the system. Common issues, such as dirty air filters or blocked vents, restrict airflow, forcing the furnace to work even harder to circulate warm air. The consequences of an overworked furnace include higher energy bills, uneven heating throughout your home, and an increased risk of a complete breakdown. Understanding these potential problems is the first step in preventing a costly and uncomfortable emergency.

What Can I Do to Prepare My Furnace Myself?

Homeowners can take several simple steps to prepare their furnace for colder weather:

• Check your air filter monthly and replace it if it’s dirty to maintain proper airflow and efficiency.  
• Check all heating vents and return air grilles to make sure furniture, rugs, or drapes don’t block them.
• Clear any debris or flammable materials from around the furnace to reduce safety risks.  
• Test your thermostat to make sure it’s functioning properly and communicating with the furnace.  
• For furnaces with a pilot light, check that it is lit and steady.

When Should I Call a Professional for My Furnace?

You should call a professional HVAC technician when you notice issues that go beyond simple maintenance or if you’re uncomfortable performing the checks yourself. If your furnace is making strange noises, such as banging, screeching, or rattling, it’s a clear sign that a component may be failing. Other red flags include rooms that are significantly colder than others, a furnace that cycles on and off too frequently, or any problems with the pilot light or ignition system. If your furnace is more than 15 years old, a professional inspection is highly recommended before winter arrives. An expert can perform safety checks, conduct preventive maintenance, and give you peace of mind that your system is ready for the cold.

What Should I Do If My Furnace Breaks Down in the Cold?

Unfortunately, breakdowns can occur even with proper preparation. If your furnace stops working during an extreme cold spell, your priority is to stay safe and warm while waiting for professional help. Immediately call a trusted HVAC technician for emergency service. While you wait, use alternative heating sources, such as space heaters, safely by keeping them away from flammable objects and never leaving them unattended. Close off unused rooms to consolidate heat in the main living areas and block drafts from windows and doors with towels or blankets. Avoid attempting complex DIY repairs, as this could worsen the problem or create a safety risk.

Stay Warm and Worry-Free

Taking a few preparatory steps can significantly reduce the stress of winter, prevent expensive repairs, and keep your home safe and warm. Combining simple DIY maintenance with an annual professional tune-up offers the best protection against furnace failure.

Don’t wait for the cold to reveal a problem. Schedule a professional furnace tune-up with Van Drunen Heating & Air Conditioning today to keep your home warm all winter long.