High-efficiency furnaces use outdoor intake and exhaust pipes, usually PVC. Even moderate Western Slope snow can cover these openings and cause the system to shut down on safety lockout—or worse, allow combustion gases to enter the home.

After every significant snowfall, check the outdoor terminations. Clear snow and ice carefully without damaging the pipes. Keep the area around them free of drifted snow. If the pipes are in a location that drifts heavily, discuss protective measures with a technician.

Include this check in your regular winter routine along with filter changes.

Cooley’s Heating, Cooling & Plumbing reminds homeowners in Delta, Montrose, and Mesa counties to keep vents clear and offers full furnace safety inspections.

Key Takeaways

• Inspect and clear vents after snow.
• Never block intake or exhaust openings.
• Call for service if the furnace locks out repeatedly.