Is Your Furnace Safe? 5 Heating System Safety Tips for the Winter

Stay Warm & Safe with These Essential Furnace Safety Tips

A man is working on an air conditioner with a hose.

Winter is here, and your furnace is working hard to keep your home warm. But is it operating safely? It’s important to know that a malfunctioning furnace can lead to fire hazards, carbon monoxide leaks, and costly repairs. Ensuring your heating system is in top shape can help you stay safe and comfortable all season long.


5 Essential Furnace Safety Tips for the Winter


1. Schedule a Professional Furnace Inspection

  • A yearly HVAC maintenance check ensures your furnace is working properly.
  • Technicians inspect for cracked heat exchangers, gas leaks, and faulty wiring.
  • Regular maintenance can prevent costly breakdowns and improve efficiency.


2. Check & Replace Your Air Filter

  • A dirty furnace filter can block airflow, making your system work harder.
  • Clogged filters increase fire risk and reduce indoor air quality.
  • Replace filters every 1-3 months for optimal performance.


3. Install & Test Carbon Monoxide Detectors

  • Furnaces produce carbon monoxide (CO), an odorless, deadly gas.
  • Install CO detectors near bedrooms and test them monthly.
  • If your detector goes off, evacuate immediately and call 911.


4. Keep Flammable Items Away from Your Furnace

  • Furniture, boxes, and flammable materials should be kept at least 3 feet away.
  • Never store paint, gasoline, or cleaning chemicals near the furnace.
  • Clear the area around vents and registers to prevent blockages.


5. Listen for Unusual Noises & Smells

  • Banging, rattling, or squealing sounds may indicate a mechanical issue.
  • A burning smell could mean overheating or an electrical problem.
  • If you notice rotten egg odors, you may have a gas leak—turn off the furnace, leave your home, and call your gas company immediately.


Keep Your Furnace Safe with ARCO Heating & Cooling

A properly maintained furnace keeps your home warm, safe, and energy-efficient. If your system needs an inspection, HVAC repairs, or a new HVAC installation, ARCO Heating & Cooling is here to help.


Call  ARCO Heating & Cooling today at  (636) 389-6471 to schedule a furnace safety check!


A person in a tool belt hands a clipboard to another person who is signing a ARCO document indoors.
By ARCO Heating & Cooling May 5, 2026
ARCO technicians repair and install mobile home HVAC systems. A Reliable solutions for homeowners. Schedule your service today and stay cool with confidence.
ARCO HVAC technician holding gauges and a digital meter near a ladder indoors.
By ARCO Heating & Cooling April 21, 2026
ARCO HVAC professionals ensures your entire system operates efficiently, mobile home HVAC service, or are planning mobile home heat pump installation in St. Louis.
Hand holding an HVAC capacitor in an open unit, with wires, connectors, and a ARCO logo.
By ARCO Heating & Cooling April 9, 2026
ARCO Heating & Cooling specializes in mobile home HVAC services and mobile home heat pump installation in St. Louis. Call our team for a HVAC consultation today!
Person's hands working on HVAC system's valve with wiring visible, likely for repair.  Close-up with an ARCO logo.
By ARCO Heating & Cooling March 24, 2026
HVAC maintenance, repairs, or mobile home heat pump installation in St. Louis, professionals ensures your home stays cool and comfortable throughout the year.
Electrician with tools, using a multimeter; toolbox open. ARCO.
By ARCO Heating & Cooling March 6, 2026
ARCO Heating & Cooling professional team technicians understand the unique setup of manufactured home HVAC systems and will carefully inspect every key component.
Man kneels, working on a furnace in a basement. The ARCA logo is in the top right.
By ARCO Heating & Cooling February 23, 2026
ARCO Heating & Cooling helps homeowners across the Saint Louis metro determine whether a heat pump is the right fit and ensures a professional installation.
Show More