Why Old Furnaces Die Mid‑Storm (And What to Do)

It always seems to happen in the middle of a storm: the furnace quits. Here’s why that’s more than coincidence.

Top reasons old furnaces fail during storms:

• Long run times under extreme temps expose worn-out parts.
• Fluctuating power from storms can fry older control boards.
• Clogged filters or blocked vents lead to overheating.

Preventative tips:

• Get a tune-up before peak winter hits.
• Replace the filter monthly in heavy-use months.
• Know your furnace’s age — 15+ years is time to start planning.
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Don’t wait for frostbite to discover your furnace’s retirement date.