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Whether you're drying firewood or preparing lumber for a carpentry project, you can use a conventional oven to dry wood. Drying wood in an oven involves heating the wood at a lower temperature over the course of an hour or more. This method is recommended for smaller amounts of wood. The process can be dangerous if you leave the oven unattended or don't have a fire extinguisher available in the event of a fire. [1] X Research source
Steps
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Reposition your racks so that one is at the bottom and one is in the center. You want each side of the wood to dry evenly, so you're going to use the center rack. Place a large sheet pan on the bottom rack as a safety precaution to catch any smaller pieces that slip through the wire. [2] X Research source
- Most ovens have a built-in thermometer. You can add a second thermometer to the center rack if you want accurate readings to prevent over-drying. Just make sure it's an oven-safe cooking thermometer. [3] X Research source
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Set the temperature and preheat the oven. Set your oven to be as close to 218 °F (103 °C) as possible. [4] X Research source If you have an analog oven, try to heat your oven between 200 °F (93 °C) and 225 °F (107 °C). Wood ignites at 500 °F (260 °C), so avoid using higher temperatures.
- Turn the convection fan on if you have one.
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Measure your wood's moisture level before adding it to the oven. The best way to check the humidity in a piece of wood is to use an electronic moisture meter. Write the moisture level down to get a better idea of how long you need to dry it for. [5] X Research source
- To use an electric moisture meter, turn it on and press the two metal pins into the wood with a little pressure. You don't need to insert the pins in to the wood or apply any extreme force. [6] X Research source
- You want to achieve a moisture level between 15-20% for firewood. [7] X Trustworthy Source United States Environmental Protection Agency Independent U.S. government agency responsible for promoting safe environmental practices Go to source
- If you don't have an electronic moisture meter, you can simply weigh the wood before you start and note how much the weight changes as it dries. The drier the wood is, the less it will weigh. [8] X Research source
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Spread your wood pieces out on the center rack. You don't want any of your wood pieces to touch, so spread them out across your center rack. Place smaller pieces of wood perpendicular to the rungs of your oven rack to keep them from slipping through to the sheet pan at the bottom. [9] X Research source -
Double-check the temperature and placement of the wood. You want to recheck everything before closing the oven. Look at the temperature again to ensure that isn't higher than 225 °F (107 °C). Inspect the placement of each piece of wood to make sure that they aren't touching one another. [10] X Research source
- Wood is more likely to warp or crack if your temperature is too high.
- Your wood may not dry correctly if any of your wood pieces are touching one another.
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Bake your wood for one hour. Set a timer for one hour and shut the oven door. Remember not to leave the oven unsupervised while the wood dries and keep a fire extinguisher nearby in the event of a fire. [11] X Research source
- While you don't have to stand right next to the oven while you wait, it's best to not wander off too far. Wood always has a chance of igniting when it is heated.
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Check your wood after an hour of heating. After baking your wood for one hour, check its moisture content by taking a reading with your moisture meter. If you don't have one, take a piece out of the oven and wait for it to cool on a wire rack before weighing it. To take a piece out, use a large pair of tongs or thick oven mitts and carefully move the wood from the oven to the wire rack. [12] X Research source
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Put your wood on wire cooling racks to let it cool. Using a large pair of tongs or thick oven mitts, lift each individual piece of wood out of the oven and put them on your wire cooling rack. Spread the pieces out so that each piece cools evenly.
- Be careful to avoid touching the wood.
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Inspect the wood for cracks or drying defects after it cools. Heating wood can cause it to crack or warp. Inspect your wood by looking at each piece carefully. [15] X Research source If a crack is small enough, you can fill it with wood glue or epoxy to try to repair it. [16] X Research source
- If you're trying to dry firewood, it's not necessary to worry about cracks or defects.
- You can unwarp wood by wrapping it in a damp cloth and ironing it. It may take multiple attempts before the wood is straightened.
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Apply a sealant or wood stabilizing solution if you'd like. You can apply a sealant or wood stabilizing solution after it cools to ensure that it remains dry. To use a wood stabilizing solution or sealant, wait for the wood to reach room temperature. Then, apply the solution or sealant liberally across each part of the wood with a brush or sponge. Let the sealant or solution air dry. [17] X Research source
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Things You'll Need
- Fire extinguisher
- Electronic moisture meter (optional)
- Large tongs or thick oven mitts
- Wire cooling rack
- Wood glue (optional)
- Sealant (optional)
- Wood stabilizing solution (optional)
- Epoxy (optional)
References
- ↑ http://theplywood.com/drying-wood-in-oven
- ↑ https://cutthewood.com/diy/how-to-dry-wood-slices-in-an-oven
- ↑ https://cutthewood.com/diy/how-to-dry-wood-slices-in-an-oven
- ↑ https://cutthewood.com/diy/how-to-dry-wood-slices-in-an-oven
- ↑ https://youtu.be/_cgaFgFTpGY?t=89
- ↑ http://www.woodweb.com/knowledge_base/Electric_Moisture_Meters.html
- ↑ https://www.epa.gov/sites/production/files/2017-02/documents/moisture_meter_v1_01-04-2017final.pdf >
- ↑ http://theplywood.com/drying-wood-in-oven
- ↑ https://cutthewood.com/diy/how-to-dry-wood-slices-in-an-oven
- ↑ https://cutthewood.com/diy/how-to-dry-wood-slices-in-an-oven
- ↑ http://theplywood.com/drying-wood-in-oven
- ↑ http://theplywood.com/drying-wood-in-oven
- ↑ http://www.woodweb.com/knowledge_base/Electric_Moisture_Meters.html
- ↑ http://theplywood.com/drying-wood-in-oven
- ↑ https://cutthewood.com/diy/how-to-dry-wood-slices-in-an-oven
- ↑ https://bioresources.cnr.ncsu.edu/resources/to-repair-or-not-to-repair-cracked-wood/
- ↑ https://sawshub.com/how-to-dry-wood-slices/#tab-con-8
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