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How-to-Use Chimfex®

Chimfex® is easy to activate and easy to use!  Simply follow the instructions below.

How to Activate

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Note: Chimney fires can re-ignite. Larger flue systems may require more than one Chimfex® stick. We recommend keeping an additional Chimfex® on hand.

Directions for Use

  • Before activating, stand in front of fireplace or wood-burning heater.  
  • Hold Chimfex® at the base so it extends over the fireplace hearth or fireproof stove board.  
  • To activate, remove top lid to expose the scratch surface on the cap.  Twist and remove cap to expose the black button on Chimfex®.  
  • While holding Chimfex® away from your face and body, lightly scratch the black button with the surface of the cap.

For Fireplaces:

  • Activate Chimfex® directly in front of fireplace according to the directions above.  
  • Drop Chimfex® IMMEDIATELY inside the fireplace alongside the fire (not directly in the fire).  
  • Reduce draft as much as possible by closing fireplace doors or covering the fireplace opening with a non-flammable material, leaving the flue damper open.  
  • The natural draft will draw the fumes up the flue and extinguishes* the chimney fire.

For Wood-Burning Heaters:

  • Activate Chimfex® directly in front of heater according to the directions above.
  • Drop Chimfex® IMMEDIATELY into stove alongside the fire (not directly in the fire). 
  • Close air inlet controls, leaving the flue damper open. 
  • The natural draft will draw the generated fumes up the flue and extinguish the chimney fire.

*  This device is not approved or permissible for use as an alternative for fire extinguishers in any building where fire extinguishers are required by law, ordinance or fire marshal regulation.