From Ring of Brodgar
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Vital statistics
Size 3 x 3
Skill(s) RequiredSpecific needed skills.<br>The default skills every hearthling starts off with, Oral Tradition, Primitive Tools & Wilderness Survival), are ignored. Pottery
Object(s) Required Clay x35
Required By (23) Ashes, Bone Ash, Brick, Ceramic Knife, Clay Jar, Clay Pipe, Earthenware Platter, Fishwrap, Fruitroast, Garden Pot, Hand Impression, Laurel-Crowned Roast, Malted Barley, Malted Wheat, Mug, Mushroom-Burst Glutton, Nutjerky, Porcelain Plate, Stoneware Vase, Teapot, Toy Chariot, Treeplanter's Pot, Urn
Repaired With Clay
(repairs 10% per unit)
Can be Lifted No
Has Quality Yes
Hit Points 500
Soak Value 2
Go to Objects

Icon keyboard.pngBuild > Buildings & Construction > Furnaces & Fireplaces > Kiln

A kiln is mainly used to turn "unfired" clay objects into hardened ceramics. It has 25 (5 x 5) slot inventory that items to be processed are placed in.

High quality kiln is a cornerstone of industry, propagating and spiraling it's quality to most items through tools like Treeplanter's Pot and materials like Bone Ash (for Bone Clay) and Bricks.

Certain liquids can only be stored in Clay Jars (in this case, quality doesn't matter.) These are Any Elixir, Rustroot Extract, and Snake Juice.

How to Acquire

You'll need:

  1. Plow a 3x3 area.
  2. Lay Stone on the plowed area.
  3. Acquire clay. Keep in mind that the kiln has a quality value, determined as the average of the used clay quality.
  4. Build -> Buildings & Construction -> Furnaces and Fireplaces -> Kiln to place the construction site.

Placement tips:

  • Many Kiln products require further clay. As clay quality may vary within a short trip distance, both building a permanent settlement next to a high quality clay node and running clay digging trips are considerable actions.
  • The Kiln will need fuel for the fire, and the quality of the fuel will impact finished products. Consider how accessible your kiln will be to your tree farm.


The quality of the kiln is the average quality of the clay used to make it, and is not softcapped.

The quality of a kiln's products is determined by a weighted average:

Product Quality =

How to use

Kilns are fueled by fuel, which burns away when the kiln is lit. To add this fuel:

  1. Left-click fuel, e.g. a Branch in your inventory.
  2. Right-click the Kiln on the map.(Hold down shift to avoid repeating step one.)
  3. Continue adding fuel until you have as much as you'll need. Different items require different amounts of fuel. Bricks require two ticks(branches), and most other things require more.
  4. Right-click the Kiln to see the Kiln's inventory and fuel indicator (the bar on the right.)

Within this inventory you may place unburnt objects which you wish to fire in the kiln. These include:


The amount of objects in the kiln has no effect on the amount of fuel needed, but the type of objects may require different firing times.

Item Real Time In-Game Time Branch Notes
Ashes 0:54:43 3:00:01 12 made from Pitbaked Goods
0:13:41 0:45:00 3 made from Board
0:36:29 2:00:00 8 made from Block of Wood
Bone Ash 0:25:12 1:22:54 6
Branding Iron 0:04:33 0:14:58 1 warm up
Brick 0:08:58 0:29:30 2 Coade Clay excluded
1:49:25 6:00:00 23 made from Coade Clay
Ceramic Knife 0:54:33 2:59:28 12
Clay Jar 0:54:33 2:59:28 12
Clay Pipe 0:21:07 1:09:28 5
Earthenware Platter 0:36:18 1:59:26 8
Fishwrap 0:18:07 0:59:36 4
Fruitroast 0:18:07 0:59:36 4
Garden Pot 1:49:25 6:00:00 23
Hand Impression 0:21:10 1:09:38 5
Malted Barley 0:04:33 0:14:58 1
Malted Wheat 0:04:33 0:14:58 1
Mushroom Burst Glutton 0:18:07 0:59:36 4
Mug 0:54:33 2:59:28 12
Nutjerky 0:18:07 0:59:36 4
Pot 1:49:25 6:00:00 23
Porcelain Plate 0:36:18 1:59:26 8
Stoneware Vase 0:36:18 1:59:26 8
Stuffed Bird 0:18:07 0:59:36 4
Teapot 0:54:33 2:59:28 12
Toy Chariot 0:21:10 1:09:38 5
Treeplanter's Pot 0:36:18 1:59:26 8
Urn 1:49:25 6:00:00 23


Game Development

  • Stack of Stacks (2023-03-07) >"Fixed the old fuel bug and removed the work-around for it. Ovens/smelters/&c. no longer reset their progress when burning out, rather each item therein tracks the average fuel quality it has seen while burning, and uses that upon completion."
  • Merry Igloo! (2021-12-19) >"While holding an item and right-clicking a container, you can now hold Alt to only take from the container, rather than first attempting to transfer to the container. Useful, for example, when you want to light a branch on a fireplace without first filling the fireplace up with fuel (e.g. branches)."
  • Market Garden (2016-10-05) >"Added/Re-added Gray, Cave, and Bone clays from Legacy, and implemented variable materials for existing clay objects -- pot, urn, kiln, and clay cauldron -- along with that."