Surviving Illinois Polar Vortex: Emergency Heating Tips

When temperatures in Illinois plunge well below zero during a polar vortex, your heating system faces its toughest challenge of the year. Here’s how to keep your home warm and avoid emergency breakdowns during extreme cold snaps.

Understanding the Strain on Your System

During extreme cold, your furnace may run nearly continuously to maintain indoor temperatures. This increased workload can expose hidden problems and push aging systems to their limits.

Warning signs to watch for:

• Furnace cycling on and off frequently
• Unusual noises like banging or squealing
• Uneven heating throughout your home
• Thermostat not reaching set temperature

Emergency Heating Tips

1. Don’t Crank Up the Thermostat

It’s tempting to set your thermostat to 80°F when it’s -15°F outside, but this won’t heat your home faster. It only makes your furnace run longer and could cause it to overheat.

Better approach: Set your thermostat to a reasonable 68-70°F and let your system work steadily.

2. Use Supplemental Heat Safely

If your primary heating can’t keep up, space heaters can help—but use them safely:

• Keep at least 3 feet of clearance around portable heaters
• Never leave space heaters unattended
• Plug directly into wall outlets, not extension cords
• Turn off when leaving the room or sleeping

3. Prevent Frozen Pipes

Frozen pipes can burst and cause thousands of dollars in damage. During extreme cold:

• Open cabinet doors under sinks on exterior walls
• Let faucets drip slightly to keep water moving
• Keep your thermostat at 55°F minimum, even when away

4. Check Your Furnace Filter

A clogged filter makes your furnace work harder during the worst possible time. If you haven’t checked it recently, do it now.

5. Clear Snow from Vents

If you have a high-efficiency furnace with PVC intake and exhaust pipes outside, make sure they’re not blocked by snow or ice. Blockages can cause your furnace to shut down.

When to Call for Emergency Service

Don’t wait if you notice:

• Complete loss of heat
• Gas smell near your furnace
• Carbon monoxide detector alarm
• Furnace not turning on at all

Stay Prepared

The best defense against extreme cold is preparation. Schedule your annual furnace tune-up before winter arrives, and address any concerns before temperatures drop.

Need emergency heating service or want to schedule preventive maintenance? Find a trusted Illinois HVAC professional in your area.

Stay safe and stay warm, Illinois!