HVAC Scares to Avoid This Halloween

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This Halloween, you may want to be spooked by a scary movie or startled by some haunting front yard decorations. But you probably aren’t up for being frightened by your HVAC system. Here are a few of the most common HVAC scares to watch out for this Halloween and throughout the cold weather months.

Carbon Monoxide

Frighteningly referred to as the silent killer, carbon monoxide is odorless gas that can be fatal when inhaled. It can occur in a home when a furnace exchanger is malfunctioning. Symptoms can include nausea, dizziness, headaches and mental confusion. Don’t take chances with carbon monoxide! If you have a gas furnace, it’s essential to have a carbon monoxide detector in your home.

And, if you suspect a gas leak, call your gas provider or fire department immediately and leave your house until the leak has been safely repaired.


If you see smoke, sparks or smell something overheating coming from any part of your HVAC system, there is a problem, and potentially something that can start a fire. Turn off your HVAC system immediately at the master switch and call an HVAC professional right away.

If there is a slight burning smell within the first 24-hours after you start up your furnace for the season this is normal. However, if the odor lingers or becomes stronger, turn off the furnace at the shutoff valve and call for service.

Musty Smell

HVAC systems are prone to condensation buildup which can lead to mold and an unpleasant musty smell. As the mold creeps through air ducts, it can impact indoor air quality and cause respiratory issues.

If you smell must, you must call a technician who can quickly and safely clean your air ducts and identify the source of where the mold is growing.

Clutter Around the Furnace

Many homeowners are unaware of the risk of leaving boxes, bags and other items piled on or around their furnace. It’s a significant fire hazard that can be easily avoided. Make sure to provide plenty of space around your HVAC system.

It’s important to stay informed about potential hazards caused by your HVAC system. And keep up with preventive maintenance with twice-yearly service that can ensure your system is running safely.