How long will a cricket live in a furnace duct?  Will turning the furnace on make a difference?

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  • 1 month ago

    Oh you poor soul.  I'll bet that sucker is just chirping all night and keeping everyone awake.  If you really know which duct that pest is in and how close it is to the vent, you might try spraying pesticide into that duct.  Turning the furnace on won't do much I think.

  • 1 month ago

    weeks, if not forever.  the furnace won't make any difference, except to the speed with which it chirps.

  • elhigh
    Lv 7
    1 month ago

    Running the furnace for an hour will probably kill every insect living in there.  They can't take high heat for very long.

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