Blocked furnace vents can cause big problems during Ontario winters, here’s how to keep them clear and your home safe!
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![](https://crossheating.com/wp-content/uploads/2025/02/Summary-Image-520-x-466-Cross-Monthly-Maintenance-Tips-From-Cross-Dont-Let-A-Blocked-Furnace-Vent-Affect-Your-Safety-Comfort-This-Winter.png)
Blocked Furnace Vent Issues
A blocked furnace vent can result in the following heating issues:- Frequent cycling
- Carbon monoxide and other exhaust fume build-up
- Inconsistent or non-existent heating performance
Clean Effectively
First do a visual inspection of the area, removing any furniture you might have pushed up against it for the season, or if there are lots of bushes and shrubbery around.![Icicle hanging from exhaust vent, with snow cleared from the furnace vent to prevent blockages during cold winter months.](https://crossheating.com/wp-content/uploads/2025/02/FullLength-3615-x-954-Cross-Monthly-Maintenance-Tips-From-Cross-Dont-Let-A-Blocked-Furnace-Vent-Affect-Your-Safety-Comfort-This-Winter-1000x265.png)
For Ongoing Maintenance You Can Trust Sign Up For The Cross Advantage Program
Regular tune-ups are essential to keep your furnace running like new! They help identify and address small issues before they become big problems, and enhance efficiency and performance in between services. So once your vents are cleared, plan ahead with regular maintenance with the Cross Advantage Program! Here’s what you can expect when you sign up:- Semi-annual system inspections before each heating and cooling season
- 1 year repair warranties for enhanced peace of mind
- HVAC dollars, repair and equipment discounts