How to get rid of mice in heating ducts

Written by cody sorensen
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How to get rid of mice in heating ducts
Mice can do a lot of damage to home heating systems. (Comstock/Comstock/Getty Images)

Mice in heating ducts create foul odours with urine and faeces. If the mice build nests, they can block the air flow of the duct work in a home and reduce the efficiency of a furnace. Poison should not be used when trying to rid heating ducts of unwanted pests, because dead mice will stink up the house and possibly spread disease. Snap or glue traps can be used, but preventive maintenance should become a regular occurrence to ensure it does not happen again.

Skill level:
Moderate

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Things you need

  • Duct tape
  • Peanut butter
  • Disposable butter knife
  • Flathead screwdriver
  • Phillips screwdriver

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Instructions

  1. 1

    Inspect the heating ductwork for holes. These are the entry and exit points for the mice. Cover these holes with duct tape. Count the number of heating vents in the house.

  2. 2

    Bait as many mouse traps as there are heating vents. Apply peanut butter using a disposable butter knife.

  3. 3

    Remove the heating duct vent covers in every room in the house using a flathead or Phillips screwdriver.

  4. 4

    Set a snap trap by pulling the locking bar out of the way and pulling back the spring-loaded bow. Hold the bow down with one hand and put the locking bar over the bow. Insert the bar into the latch to set the trigger. Set each trap and put them inside the ductwork through the vent holes.

  5. 5

    Place a glue trap in the hole alongside the baited snap trap for a backup. The sweet scent of the glue attracts the mice. Replace the vent covers and wait. Check the traps every 24 hours. Remove all traps that have caught mice and dispose of them. Re-bait and replace the traps until all mice have been removed from the ductwork.

Tips and warnings

  • When you stop catching mice, the job is complete.
  • Wear disposable rubber gloves while working with traps and dead mice.

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