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How to fix cracks in a wood cook stove

Updated July 20, 2017

Wood cook stoves are a welcome addition to any kitchen during the cold winter months. Along with being able to prepare food on them, cook stoves are an additional source of heat for the home. Because of their age, antique cook stoves should be checked for cracks, especially if the stove has accidentally been fired too hot. Cracks can leak gases such as carbon dioxide.

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  1. Allow the cook stove to totally cool down.

  2. Close the curtains in the kitchen if there is daylight outside, then take an electric light such as a small lamp without the shade and set it inside the oven. With the light still inside the oven, step back to see if there are any light leaks seeping through the metal walls of the stove.

  3. Shine the light inside the firebox. Look underneath and in back of the stove to see if there is any light leakage.

  4. Use the steel brush to clean the interior surface areas of grease, soot and oils where cracks have been detected.

  5. Spray water on the cleaned surface, then use a small putty knife to start applying the furnace cement over the first crack. Repeat for all other cracks. Allow cement to air-dry before firing up the cook stove.

  6. Tip

    Read the instructions on the container of furnace cement for specific drying times before starting a fire in the cook stove.


    If you don't dampen the metal of the stove with the spray bottle of water, the furnace cement will not set properly and will scale off.

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Things You'll Need

  • Furnace cement
  • Gloves
  • Safety glasses
  • Electric light
  • Wire brush
  • Spray bottle with water
  • Putty knife

About the Author

B. Ellen von Oostenburg became a full-time writer a decade ago. She has written features for local and state newspapers, as well as magazines, including Milwaukee Magazine, Wisconsin Trails and German Magazine. A graduate of the University of Wisconsin - Madison, von Oostenburg holds a Bachelor of Science Degree in fine art.

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