Kiln: Difference between revisions
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Making an improvised furnace can be as simple as digging a small pit unto the ground, cutting a small groove into the edge to allow air from a set of leather bag [[bellows]] and placing a turf cap over the pit.<ref name=":0">DA Chapman RCA, SG Chapman MA AIFA (2013). [http://web.archive.org/web/20201106232544/http://www.ancient-arts.org/pentrwyn%20exp%20report.pdf Reconstructing and testing the Pentrwyn pit furnaces], ancient-arts.org. Archived on 6 November 2020 from the [http://www.ancient-arts.org/pentrwyn%20exp%20report.pdf original link]. Retrieved on 28 August 2022</ref> | Making an improvised furnace can be as simple as digging a small pit unto the ground, cutting a small groove into the edge to allow air from a set of leather bag [[bellows]] and placing a turf cap over the pit.<ref name=":0">DA Chapman RCA, SG Chapman MA AIFA (2013). [http://web.archive.org/web/20201106232544/http://www.ancient-arts.org/pentrwyn%20exp%20report.pdf Reconstructing and testing the Pentrwyn pit furnaces], ancient-arts.org. Archived on 6 November 2020 from the [http://www.ancient-arts.org/pentrwyn%20exp%20report.pdf original link]. Retrieved on 28 August 2022</ref> | ||
=== Termite clay === | |||
Clay from termite mounds can be used to build a kiln. In this case, dry chunks are taken and mixed with water to slake the clay, alternatively by stepping on it. Adding dead palm fronds is recommended to stop the clay from cracking as it dries and to add insulation to the kiln.<ref name=":1" /> | |||
== Temperature == | == Temperature == | ||
Normally, a natural draft furnace using [[wood]], a kiln, can reach up to 1400 Celsius degrees (or 2552 Fahrenheit), while a furnace that uses [[fuel]] such as [[charcoal]] can reach temperatures up to 1600 °C (2912 °F) degrees.<ref>[https://primitivetechnology.wordpress.com/2016/02/19/making-charcoal/ | Normally, a natural draft furnace using [[wood]], a kiln, can reach up to 1400 Celsius degrees (or 2552 Fahrenheit), while a furnace that uses [[fuel]] such as [[charcoal]] can reach temperatures up to 1600 °C (2912 °F) degrees.<ref name=":1">[https://primitivetechnology.wordpress.com/2016/02/19/making-charcoal/ Termite clay kiln and pottery] - primitivetechnology.wordpress.com, 24 March 2017. Retrieved on 29 September 2022</ref><ref>[https://primitivetechnology.wordpress.com/2017/10/27/natural-draft-furnace/ Natural Draft Furnace] - primitivetechnology.wordpress.com, 27 October 2017. Retrieved on 28 August 2022</ref> | ||
== See also == | == See also == | ||
Revision as of 23:38, 29 September 2022
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A kiln is a thermally insulated chamber, a type of oven, that produces temperatures sufficient to complete some process, such as hardening, drying, or chemical changes. Kilns have been used for millennia to turn objects made from clay into pottery, tiles and bricks. Various industries use rotary kilns for pyroprocessing to calcinate ores, limestone to lime for cement, and to transform many other materials.
Building instructions
Making an improvised furnace can be as simple as digging a small pit unto the ground, cutting a small groove into the edge to allow air from a set of leather bag bellows and placing a turf cap over the pit.[1]
Termite clay
Clay from termite mounds can be used to build a kiln. In this case, dry chunks are taken and mixed with water to slake the clay, alternatively by stepping on it. Adding dead palm fronds is recommended to stop the clay from cracking as it dries and to add insulation to the kiln.[2]
Temperature
Normally, a natural draft furnace using wood, a kiln, can reach up to 1400 Celsius degrees (or 2552 Fahrenheit), while a furnace that uses fuel such as charcoal can reach temperatures up to 1600 °C (2912 °F) degrees.[2][3]
See also
References
- ↑ DA Chapman RCA, SG Chapman MA AIFA (2013). Reconstructing and testing the Pentrwyn pit furnaces, ancient-arts.org. Archived on 6 November 2020 from the original link. Retrieved on 28 August 2022
- ↑ 2.0 2.1 Termite clay kiln and pottery - primitivetechnology.wordpress.com, 24 March 2017. Retrieved on 29 September 2022
- ↑ Natural Draft Furnace - primitivetechnology.wordpress.com, 27 October 2017. Retrieved on 28 August 2022
External links
- Primitive Technology: Termite clay kiln & pottery - Primitive Technology, 24 Mar 2017, YouTube
- Primitive Technology: Crossdraft kiln - Primitive Technology, 12 July 2019, YouTube
- Primitive Technology: Brick Firing Kiln - Primitive Technology, 29 November 2019, YouTube
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