How do I Replace a Manual Damper in a Fireplace Flue Pipe?


If you have a fireplace, you need to have a damper to help regulate the flow of air inside the duct or chimney. For the damper to work efficiently, it needs to fit tightly in the chimney. Dampers can warp over time and they will need replacing. Installing a damper is easy but often messy. While you can hire a chimney fireplace expert to do the job for you, why not save money and do the job on your own?

Things You'll Need

  • Leather work gloves
  • Metal container
  • Trouble light or a high-powered flashlight
  • Adjustable wrench
  • Put on leather work gloves. Clean the fireplace by removing the charred bits of wood. Throw them into a metal container. Remove the fireplace grate.

  • Crawl inside in the fireplace. Shine a light up inside the chimney with a trouble light or a high-powered flashlight. You will find the damper a foot or two above the chimney opening.

  • Locate the four bolts holding the damper in place. Remove these bolts by turning them counterclockwise with an adjustable wrench. Turn the damper sideways and remove it from the rod that holds it in place.

  • Take the old damper to a hardware store. You need to buy the same sized damper so it fits in the chimney properly. If you already bought a damper, make sure it is the same size as your old one.

  • Slide the new damper on the rod and then replace the four bolts to hold it in place.

  • Install the grate.

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  • Photo Credit Hemera Technologies/ Images
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