Primitive Technology: Crossdraft kiln

  • Published on:  7/12/2019
  • Primitive Technology: Crossdraft kiln - Building a crossdraft kiln from scratch.Subscribe: | Never miss a video! Enable ‘ALL’ Notifications!Last time, I made Polynesian Arrowroot Flour from scratch: Primitive Technology:Wordpress: https://primitivetechnology.wordpress...Patreon: More Primitive Technology:Latest Uploads: Videos: This Video:I built a cross draft kiln and fired a pot in it to test ideas about how cross draft kilns operate. A cross draft kiln is one in which the flames travel from the firebox and across a horizontal wear chamber before traveling vertically up a chimney and out of the kiln. Unlike an updraft kiln there is no perforated floor that the pottery sits on. Instead the pot sits on the floor of the wearchamber as the flames pass around it. Taking soil from a previous kiln and mixing it into mud, I formed the kiln so it was less than a meter long. It was 25 cm wide and tall inside the tunnel formed by the kiln though a slight curve was added to the tops of the side walls. The walls were covered with sticks and a roof of mud was put in place onto this. A chimney about 25 cm wide and 65 cm in total height was made at the end of the kiln to draw flames through the kiln due to natural draft. 5 grate bars made of clay were installed in the firebox to make combustion more efficient. A side door was cut into the kiln to access the ware chamber (25 x 25 cm).Clay was taken from the creek bank and mixed with previous crushed pottery as grog. It was formed into a pot with a pouring spout. This was dried and then placed into the kiln. The kiln was fired with the flames acting as planned and the pot was fired in a relatively short 1 hour and 20 minutes. It would have been a shorter firing time had the kiln not still been wet. The pot was tested with water and held it satisfactorily. Cross draft kilns are an apparent improvement on updrafts with the reasoning being that more efficiently retain heat as the hot gasses don't immediately exit the kiln leaving the colder gasses inside. Hot spots are less likely to develop giving a more uniform firing of the pottery. Cross draft kilns developed early in Asia, evolving from the practice of excating tunnels into the side of hills to fire pottery. It's unknown whether the European cross drafts were adopted from the east or were the result of the gradual extension of the firing arch outwards from the conventional updrafts. My personal experience is that this type of kiln fires quickly and evenly though I need to experiment more to understand the positive and negative aspects more fully.About Primitive Technology:Primitive technology is a hobby where you build things in the wild completely from scratch using no modern tools or materials. These are the strict rules: If you want a fire, use a fire stick - An axe, pick up a stone and shape it - A hut, build one from trees, mud, rocks etc. The challenge is seeing how far you can go without utilizing modern technology. I do not live in the wild, but enjoy building shelter, tools, and more, only utilizing natural materials. To find specific videos, visit my playlist tab for building videos focused on pyrotechnology, shelter, weapons, food & agriculture, tools & machines, and weaving & fiber.


  • darthsob
    darthsob 1 months ago+3977

    All hail the one true Primitive Technology! No shitty underground pools can compare!

  • T3rmin4ter
    T3rmin4ter 1 months ago+1238

    Almost 10 million
    Not a word
    No asking for subs
    No asking for likes
    No sponsors

  • Benjamin Crouzier
    Benjamin Crouzier 1 months ago+859

    I have a hard time imagining this guy on his computer editing his videos

  • Salmon RushDie
    Salmon RushDie 1 months ago+427

    I heard that even when off camera, he never speaks & people have to enable subtitles to know what he's up to.

  • The Cat Showz & Gaming
    The Cat Showz & Gaming 7 days ago+170

    If he was the last survivor on a plane crash on an island 1000 miles from civilization he would probably make his own plane before a rescue team even gets to him...

  • Lautaro Pereyra
    Lautaro Pereyra 1 months ago+2509

    100% true primitive technology
    0% underground beach houses with pools

  • Decide
    Decide 1 months ago+381

    Are we all just gonna ignore the fact how shredded he is/has gotten over the times of him making these videos

  • TheLord OfNuggets
    TheLord OfNuggets 28 days ago+120

    Man be playing minecraft hardcore mode

  • NightHawkInLight
    NightHawkInLight 1 months ago+495

    After watching so many primitive technology videos I feel that mud is an underutilized building material in my own projects.

  • D B
    D B 7 days ago+48

    i feel like an outdoor convention needs to be arranged for people who do stuff like this where they make an entire village improving the place gradually each time they meet

  • Winnieeeee
    Winnieeeee 1 months ago+3711

    it's going to be weird to see a diamond play button in your hut

  • Volodymyr Shcherbatenko
    Volodymyr Shcherbatenko 1 months ago+171

    Still surprises me how millions of people can watch a 10 min (!) video without dynamic editing and even text and sink it in likes and warm comments.
    The healthiest place on YouTube :)

  • ZacAttack
    ZacAttack 21 days ago+35

    Found his videos about 4 years ago...took me three years to realise that I could turn on subtitles. Part of the fun was figuring out what he was doing.

  • oof mcoof
    oof mcoof 7 days ago+38

    My hands: *start hurting after a hour of minecraft*
    Me: ow, i need lots of rest
    This guy: you weakling

  • shell company
    shell company 3 days ago+3

    No talking for 5 minutes talking about his life
    Not a single ad
    Gets straight to the point
    Doesn't say "smash that subscribe button"
    Doesn't do giveaways
    This channel is awesome

  • DoodleBob
    DoodleBob 28 days ago+62

    Camera in stone age: 1080p 60fps
    Security cameras: P I X E L S

  • Влад Садовый
    Влад Садовый 1 months ago+51

    Build a potter's wheel. Thats not so difficult but your dishes will be much better.

  • Хуан Хуанов
    Хуан Хуанов 3 days ago+2

    Автор молодец , может быть даже обладает инжинерным образованием и трудолюбив, красавец!

  • Folker
    Folker 14 days ago+17

    Waiting for iron equipment craft
    It's so cool, man
    No words, no music, no text, only singing birds and wind

  • Bryan Shafer
    Bryan Shafer 1 months ago+2903

    9mil subs and still doesn't make us sit through ads. What a guy 👍