Proposal talk:Kiln

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Further Proposals

Key Value Comment
landuse=* charcoal An area used in the production of charcoal, which may contain a number of kilns.

For further discussion. Haveyougotanypets 17:08, 23 September 2012 (BST)


Below are a number of ideas on the classification of this item with man_made=kiln being the current most appropriate tag.

  • man_made: Kilns are man made objects which do not occur naturally as such man_made=* is the most appropriate tag for kiln to be the value of.
  • land_use: Some argument could be made for the tag to be a value of the landuse tag. However this tag is meant for tagging the physical instance of the kiln and as such a landuse tag would be better suited to an area in which the product of the kiln is handled e.g. charcoal production; in which you might find a number of kiln nodes.
  • works: a reasonable argument could me made for this to be subset of the value of the man_made=works. Where you would first have man_made=works then works=kiln although the works tag has not yet been defined as its own key and there are no other current active proposals (see Industrial Plant (abandoned)) to subset this tag in such a way. It would also require the reworking of a large number of existing man_made=* value tags. As such in the current schema man_made=kiln seems more appropriate.

Pre existing Features / Keys

List any features that may be used instead of the one proposed on this page.

Key Value Comment
shop=furnace / fireplace The feature proposed is for the actual kiln itself rather than a shop that sells furnaces. Also a furnace's function is to burn, insinuate or generally destroy objects which is almost the opposite of what a kiln does.
man_made=chimney Chimneys do not produce anything rather they are a means to remove gas from an area. However Kilms are often joined to chimneys so these two features may often be joined to one and other.
man_made=works This is a general place holder tag to resemble any "Industrial building to produce something". It does not yet have any agreed on supporting tags. The purpose of this tag is to provide more clarity. Also a kiln is not really a building in the scene most often used by osm as it is not designed for people to enter or of a suitable size. It is more a piece of equipment or machinery.

Moved the above two sections from the main page to here in case anyone else wants to comment.

Haveyougotanypets 16:40, 23 September 2012 (BST)

Extra Keys

Thought about adding keys below but decided against as they can almost always be implicitly implied by the product=* key. I belive having them would just increase the opportunity of typos and other mistakes.

Key Value Comment
consumes=* * The input material the kiln consumes in order to produce its product=* output. This would always be used in conjunction with the product tag e.g.
  • consumes=lumber -> product=charcoal
  • consumes=lumber -> product=firewood
  • consumes=clay -> product=pottery

Proposed Values:
  • lumber
  • clay
  • sand
  • clay
process=* * The process in which the kiln consumes its input material and produces its product output material. Proposed Values:
  • drying
  • cooking
  • smelting

Haveyougotanypets 13:32, 5 September 2012 (BST)

Changed tag kiln=* for tag product=* as it more accurately reflects the intended value meaning. See August/September 2012 tagging mail list archives for more details.

Haveyougotanypets 13:32, 5 September 2012 (BST)

man_made = kiln not rendered in openstreetmap

I found that your tag man_made = kiln is accepted and featured in map features page but when tagged and uploaded to openstreetmap it is not rendered. I want to tags the brick kilns in my area and see them in openstreetmap. Do you have any idea of how it can be done? How they can be made to render in the openstreetmap? —Preceding unsigned comment added by Megha (talkcontribs) 2014-10-19

The main map on the openstreetmap website currently is managed in a github repo. They are a bit overworked right now, so I'm not sure when they will be able to answer, but you could ask them to render this on areas too.--Jgpacker (talk) 14:15, 19 October 2014 (UTC)
It's still not rendered, 4 years later. I just mapped a kiln because I noticed a building and wondered what it was. After some research I found out it was an old lime kiln. But it's still a building, its purpose was as a kiln. I'd expand on that idea, but some might accuse me of suggesting you tag for the renderer.