Hint: dip the bricks in water before laing them up. The wet bricks won't suck the water out of your mortar and thus the bricks will stick together better.
also when you use the trowel, press the clay mortar with force into the surface of the bricks on both sides. makes them stick together way stronger then when applying little force and only one side of the brick.
Thanks so much for sharing! I bought a wheel a year ago and got discouraged because I couldn’t fire anything. These last few months it occurred to me to make my own kiln..duh! I just couldn’t find the right plan till now! So grateful! I will be trying this out very soon.
I'd build double walls an inner and an outer wall with air between and then interlinked with a certain frequency, that should massively improve heat retention.
I really love Andy Ward- Such great knowledge of a very specific subject, and he just owns it. He has videos on every subject. Thank you Andy and hello from central Nevada. 😊
I just found your channel and I’m happy I did. I live in Georgia, and have clay everywhere. It is extremely wet her, so thank you for the wet climate advice. I can’t wait to get started.
Hi Andy. I think your kiln looks very functional and quite sturdy. I noticed that your kiln looks very close to your cements block wall. A piece of sheet metal should reflect enough heat to prevent any heat damage to the block. It is amazing how much heat even a little kiln will produce when you are cramming every spar BTU you can find into it. I looked into paper kilns and was surprised at how well they insulate. So, was thinking thin layers of adobe with lots of straw on the outside of the kiln might help retain more heat and shield the block wall. I am wondering what you are going to put on top of the kiln? Two plates of something will allow you to throttle the fire and retain more heat. As well as put the kiln into reduction at the end of the firing. A piece of flue pipe will also improve the draft. But I don't know how far away from your original thought you may want to go. When I referred to your kiln as little I was by no means trying to slight it in anyway. I think your kiln will be a real work horse and you will be able to pull an amazing amount of pottery through it. I hope I don't sound like too much of a know it all with a lot of unsolicited advice. I am really meaning it to have a conversation. Thinking is nice, but doing is better. And you seem to be doing very well, cheers.
Thanks for the tips Russell. I fired it yesterday, no problems with the block wall getting hot. I used a few concrete pavers to cover the top and retain more heat. It did get a little smokey at one point but everything came out great. Look for the video of the firing on my channel March 24.
Hello, I can’t wait to see the result. How long does firing a kiln should last ? Also How long after pottery looks red hot should the fire continue? Thank you for your videos it is vers inspiring.
You will need to watch my firing video that is coming up. You can maintain the heat as long as you think you need to. I’m glad you are enjoying my videos.
The last comment I made was reproduced from my failing memory when I hit cancel instead of comment on the very first one. So I just realized that I had left out this part. When you are first starting up the kiln, if you place a temporary grate on top of the kiln and build a small hot fire, it will burn away all the smoke coming out of the top. Since smoke is just unburned fuel. This should help with having a stealthy urban kiln, cheers again.
You are always one step ahead of me (lol). This has been on my "to do" list all winter. I need just a few weeks more for the weather to warm up to build mine. I have built a coal forge in almost the same way. I am going to make a few adjustment to your version and add what I learned from building the coal forge on my kiln. If it works, I share with everyone on Instagram. If not, I'll just remake it the way you have done it.
Hi Andy, your kiln looks a lot like a bloomery furnace for processing iron ore into wrought iron. Those get to 1,000c or so. Have you considered putting in a tuyere below the pottery you can use to force air into the kiln? You can make a clay pipe that your fire and then connect it to a bellows, or an electric leaf blower. You can get crazy heat out of a charcoal charged furnace/kiln that way.
So if I remember right a long time ago there was product called star set. It was used in firer place construction in the fire box where the flame was the hotest, It came in a pail and was not to be frozen.
Thank you for this video! Nicely done! I'm going to build one of these when the weather warms up. We have a little bit more moisture up here in Northern Arizona, so I will have to find a solution to protect the mortor
I'm glad that you addressed ways to protect it from moisture in wetter environments. I live in Washington state and we see a lot of rain where I live. I would build mine on a cinder block platform. Another challenge I would face is the summer burn bans. The burn bans can get so strict that you can only burn in a wood stove and only if it is your primary source of heat for your house.
We frequently get small wildfires along our highways during the summer, but they get put out quickly. It is the ones deeper in the forests and grassy spaces that are harder to get under control.
The discussion at the end is quite important. Most backyard DIY projects I see on the internet don’t discuss modifying how one has to adapt the build to different climates. In my case I would have moisture, snow, and deep frost (=frost heaving) to contend with. So a DIY kiln would cost much more after you factor in the cost of a stable base, and a weather-proof and heat proof enclosure.
Thanks for this, my wife and i wanted to get into pottery. I want a more ancient style wheel and she wants one with a wheel. So we will see how much i like spinning it myself.
I am waiting for the inaugural firing, I made some mud mortar 10 years ago and I used two type of mixture: 50/50 sand/clay and the other one was 50/50 sand/clay and added 1 part of cement to 9 parts of the mud/clay mixture. The 50/50 sand/clay mixture got eroded by the elements (rain, wind, hot, cold, sun) and the 9:1 mixture have not eroded at all.
Thank you so much for your video. Can anyone please help me with something?? From what I've seen in most videos, the finished product turns to be black or burnt in colour, in that case how can I make it colourful or glaze it?? Can I use the same kiln for glazing too??
Great build Andy, we can't wait to see it get fired up. Great point about protection from rain, here in New England it would need its own enclosure. If you need more heat a few mouse holes in the firebox should do the trick.
I live in phoenixish, i would really love to know more about where, more specifically, uou go to gather your raw materials. I dont know much about oublic lands and i feel like everywhere i look there are mo trespassing signs
Thanks for this, really informative. I'm in Canada, hoping to build one once I move out of the city (forget making a kiln in this city, not even allowed to have a fireplace).
Thank you for this very informative video. I love ceramics. I love pottery very much and would love to make my own pots, mugs, plates, & more. My only problem is finding a way to fire my pieces. We live in an apartment. Hardly no land to the place. Just enough for parking lol. Maybe I can talk with landlord & make a deal?! Thank you sir! 🙏🌹
You could make a more durable kiln by using fire brick. Use a refractory cement like Satanite to line the inside. Those bricks will spall from moisture and the kiln won't last long. With fire brick inside, you can use regular mortar on the bricks on the outside. Use firebrick on it's ends on the inside to support a grate. Make the grate from rebar welded together, it's cheaper and will last longer.
Great stuff Andy! Finding wood to burn is pretty a daunting task where I live. May I ask if it is possible at all to use gas fire to do the job? I would appreciate a quick reply. Thanks and Regards. Sham Naarai.
You can definitely bisque fire, you will need temperatures of around 1300 C to melt glaze. I have never had this kiln that hot but I make earthenware so I have never tried either.
I have seen a smelter and now this. Is it ok to have a tremendous flame arms reach from under the roof. Im assuming theres a roof on the wall (perhaps not) but the other guy was right outside the garage door and melting metal so im curious.
Hi Andy! How high up does the barbeque rack need to be from the bottom of the kiln and can you have two racks for extra pottery? So you can fire items without glaze on the bottom rack and with it on the top rack? How hot does the top end of your kiln get? Any suggestion on how to get it to burn to at least 1,000 celsius? What did you use for a lid on this kiln? Thanks and great video!
I'm working on a video about how best to fire a kiln like this. I have never had it up to 1000 C but I do believe it could be done with a little more time and effort. I have never tried two stacks. I was just putting some bricks over the top for a lid but now I am building a little chimney with bricks and find that works much better as it increases draw. You can see this method in this video th-cam.com/video/4z3x8psUUbE/w-d-xo.html Like I said I will be making a video showing my thoughts and methods on firing this and getting the most from it.
Hello and thank you for making this video. I live in the city and have a small back patio area, with concrete/pavers down in the ground. I noticed you dug up some ground and placed the bricks in, and I am just wondering if it is still ok to build a kiln without a dirt ground, and if so how would be best to do so. All of the videos I have seen are working on dirt ground. Thanks again!
Thank you very much. I watch a lot of these YT walk-throughs and this one was very well made. If I wanted to buy the mortar/adobe by the bag, at say Home Depot or Lowe's, could you give a recommendation as to the brand that I would want?
Hey Andy, what cones can you fire to? I believe doing a cement outer coating of the kiln would insulate the pottery a lot nicer and allow for a more stable and easier firing method.
I never use cones so can't answer that question directly. I do use a thermocouple to measure temps in my kiln and I regularly hit about 850 to 900 C. I am sure I could go higher if I wanted to and spent more time at it, but those temps are perfectly fine for the pottery I am making.
Hi, Really instructive and good videos for me as a novice but potterycurious guy. Do you have any video about fire bricks? When to use and when not? This is really confusing to me and I do not get a clear picture of this topic. You mention below you are not targeting high temp so firebricks are not needed for this kiln. But you are still targeting 800c for burning pottery right? I guess my question is when to use fire bricks and when can I use regular bricks?
I said "I think" fire bricks are not needed, I have never done this before so I am learning as I go. But it seems logical to me that these bricks were fired much hotter than 800 C when they were made, so I would assume that 800 would not adversely effect the bricks. Only experience will tell me how they work. I certainly could never have made this kiln so cheaply if I had to use fire bricks.
I live in a city my yard is half Concrete patio type and then some grass dirt area could I build this right on the concrete slab or does it have to be on the dirt
Sure you can, but I would prefer mud mortar to cement as the concrete may not hold up well to those high temperatures. Pottery doesn’t have to cost a bunch of money as it’s made from natural materials.
So I made something like this wanted to make a kiln a traditional way but we had a heavy downpour and my mortar washed away and the whole thing collapsed. How do I prevent this in the future?
Nice video, I will definitely give it a shot to building my own. Could you recommend a device to measure temperature, possibly one that I could get on Amazon. Thank you so much. Great great video
Is there a way to reasonable test the clay for arsenic and other chemicals before using them as food grade or do the extreme temps burn everything away?
Maybe, but I wouldn't know. Our ancestors ate off of natural earthenware and they weren't dropping like flies from their pottery. I would assume that it is generally safe and like a lot of things in life, just take my chances with the rest.
@@AncientPottery our ancestors didn’t have crazy pharmaceutical companies traversing the earth with their poisons or airplanes flying all over the skies, though, but I understand the sentiment: “Do your best and don’t sweat the rest.” Still for all we know there were advanced civilizations to rival ours in the very distant past that polluted the earth as well.
@@AncientPottery Raku is fun for the pyromaniac in most potters. I saw your kiln got nearly to 900 on the first firing. I'm sure it will get hot enough. Thanks for the information. I've been wanting to get back into pottery for years, but didn't have access to a kiln. Now I can build my own.
I just want to make sure, red clay dirt and just reg sand from anywhere? And would it be OK to use the flat stepping stones as a base (floor) or just leave it all on ground? 🤔
I live in the volcano area of the Pacific NW. We do not have actual soil in my area unless we make it ourselves: compost and other ingredients. What I'm wondering is that our soil is primarily volcanic pumice. What could I use as a bonding agent with the volcanic pumice to make the mud to build a pottery kiln?
No idea, in fact the Pacific NW tends to get a lot of rainfall so the mud mortar may wash away rather quickly in that kind of climate. If you don't have access to any wild clay the best choice might be either to buy clay or to buy mortar. But really I am just guessing here.
Howdy Andy, I loved your video and learned a ton... I had a couple questions after watching maybe you could help work through. I am trying to do a lot of research to make the best DIY Smoker, to smoke meat like ribs, brisket, etc. I dove into the kiln design DIY world to better understand a different niche with a relatively similar goal; Design a cheap, safe, effective, and efficient contained heating source. It is worth quickly pointing out the major design differences are going to be related to food safety and design for food use, Lid design, and the lower temps of smoking meat 220-600 degrees operating temps. My questions are as follows: 1. What is the best food safe alternative to mud... I have thrown around the idea of building this kiln around a metal barrel to eliminate this problem of mud crumbling onto the food but this is far more intensive and ultimately more expensive. Is there a good alternative to mud like concrete or some cheap brick mortar that can do fine at my lower operating temperatures? 2. For long term use is it worth building this on a structure of foundational bricks...I imagine getting ash out does not matter as much when making pottery if you can use something to start the flame but in the smoking meat hobby it is super important to sift all charcoal ashes out between smoking's for the flavor of the meat. I will probably design and weld a sifting table for the charcoal to sit on and have holes to sift out the ash... but having a layer of brick underneath may allow me to scrape out any ask build up over time. In your use of the Kiln has cleaning out ask ever come into play or is it just as easy as taking a small shovel and scraping it out and whatever dirt comes along is no worries? 3. One design feature I am a little stuck on is the lid, it would be great for it to be hinged and light enough to move, as well as be insulative and seal against the body of the smoker. Generally lids are shaped like an upside-down bowl to increase the velocity of the smoke coming out of the top and act as a sort of nozzle. I have kind of deduced it has to be metal just because it needs to be formable, mountable, light, but it really gives up a lot on the insulation front... do you have any clay ideas for a lid like this or any other material for that matter? I am sorry for the lengthy essay just thought I would try to gain more insight from any expert I can reach. I hope you keep having a great time and keep up the amazing content, I will be sure to stay tuned :)
Really enjoyed this video! A wish that came to mine is, I would of loven seeing a fireing in this video. (Maybe a way to improve content) Have a lovely day!
I am so excited to get started. I have so many questions though; for starters, is a thicker wall on the kiln better, or is it better to be thinner walled?
Thanks! Thicker walls will hold heat better, thinner walls cool more quickly. My earlier kiln was made from adobe with walls that were about twice as think as these and it stayed hot longer. You can see that one here if you haven't already seen it th-cam.com/video/XjpxfkSBPgo/w-d-xo.html
I did some excavating on my property last year. We have a large clay layer in our soil and high amounts of clay in the soil so I saved several buckets of the clay I uncovered. Have always wanted to build a kiln and make some things. I made a brick rocket stove out of bricks laying around a number of years ago to barbecue on. You have inspired me to turn that into a kiln. Also I have always wanted to take some of the extra limestone we have and burn it to make lime mortar to do authentic repairs on my 1899 walls. I wonder if that could be accomplished in one of these little kilns as commercial operations once did on a large scale? Even though we have limestone readily available finding real lime powder or mortar without chemicals added to do burnished lime on walls has become almost impossible in my area.
I have actually wondered about that myself. A quick Google search shows that you only need a temperature of 700 C to produce lime. Although you may need to maintain that tempe over a period of time to make sure your limestone gets heated all the way through.
@@AncientPottery I saw a video of a guy who did it on his farm with a huge bonfire with the rocks piled in the center. Sort of like an outdoor firing of pottery. He stacked the wood very specifically so that it slanted in toward the limestone and would concentrate the embers into the middle as it burned. It worked, but I don’t have the space for a fire that big.
Nice video! Will this only work for pottery and ceramics? I want to get into lamp work, I'm new to all of this stuff and i cant afford a kiln and i think it would take too much energy anyway. Thanks for the hard work 😄
If you had to do this again, would you leave a couple bricks without mortar to be able to remove them to add air? If so, at what height would you have the non-mortared bricks?
Adobe is just like pottery but on a larger scale. The straw acts as temper, the same as sand. Straw however can provide a pathway for moisture to get into your structure, sand is better because it works the same but does not wick moisture in like straw does.
If you add a metal grate in the front of the fire box, this would keep the fuel off the ground allowing better air flow. Also if you add a fan or something to blow air into the kiln you'd reach much higher temperatures..(Like a rocket stove.) Good luck with the first firing! )
So, how far does a kiln like this needs to be from buildngs or hedges? I see your is quite close to a wall of some sorts. I love quite small with a small garden and the sized are all hedges!
Hi Andy, great video. Quick question, if you don’t mind. Sweet dungarees where’d you get them? Look like a sturdy pair, I myself am in the market for a new pair would appreciate a recommendation. Thanks again for the video.
How hot does it get? I'm going to be using this for metal clay pieces, and I need to make sure that it gets hot enough to fire the pieces, but not melt the pieces.
I watched your adobe kiln video and now this one (thanks to Pinterest). The adobe one reminded me of some rocket stove videos that I have watched. Now I'm keen to give this a go. I haven't thrown pots since high school and I'm retired now so I think I had better get to it. Can't wait to go back and catch up on the rest of your videos.
Regular cement doesn't hold up well to high temperatures. When they build fireplaces or kilns or other things that will get hot they use something called "refractory mortar" which is a bit more expensive than ordinary mortar.
Hint: dip the bricks in water before laing them up. The wet bricks won't suck the water out of your mortar and thus the bricks will stick together better.
Great masons tip, thanks.
also when you use the trowel, press the clay mortar with force into the surface of the bricks on both sides. makes them stick together way stronger then when applying little force and only one side of the brick.
Mortar doesn’t stick to wet brick. It will pop right off.
@@lovelivelaughsmile7223you have to get the balance right for best results.
Thank you for being a down to earth commonsense person and not showboating it like everyone else does
Thanks, that means a lot to me as someone who tries to be down-to-earth. I used to know an Andy Anderson who lived in Bisbee, Arizona.
I made my first piece of pottery last night, and it wasn't as difficult as I thought it would be.
Good for you. Keep it up.
You're hooked now. Congrats
This is awesome
Wonderful😎💚
Thanks so much for sharing! I bought a wheel a year ago and got discouraged because I couldn’t fire anything. These last few months it occurred to me to make my own kiln..duh! I just couldn’t find the right plan till now! So grateful! I will be trying this out very soon.
Glad I could help!
Update?
I'd build double walls an inner and an outer wall with air between and then interlinked with a certain frequency, that should massively improve heat retention.
That would definitely help
I really love Andy Ward- Such great knowledge of a very specific subject, and he just owns it. He has videos on every subject. Thank you Andy and hello from central Nevada. 😊
Thanks a lot, I really appreciate comments like this and people like you.
I just found your channel and I’m happy I did. I live in Georgia, and have clay everywhere. It is extremely wet her, so thank you for the wet climate advice. I can’t wait to get started.
I'm glad you found it helpful.
I'll be using this kiln build, many thanks!! Great video
Thank you so much for sharing this! I will be building one on my new homestead for my hobby shop.
Great, I hope it works out for you.
Informative and relaxing to watch. This seems very doable especially for a beginner. I love it!
Glad you enjoyed it!
Hi Andy. I think your kiln looks very functional and quite sturdy.
I noticed that your kiln looks very close to your cements block wall.
A piece of sheet metal should reflect enough heat to prevent any heat damage to the block.
It is amazing how much heat even a little kiln will produce when you are cramming every spar BTU you can find into it.
I looked into paper kilns and was surprised at how well they insulate.
So, was thinking thin layers of adobe with lots of straw on the outside of the kiln might help retain more heat and shield the block wall.
I am wondering what you are going to put on top of the kiln?
Two plates of something will allow you to throttle the fire and retain more heat. As well as put the kiln into reduction at the end of the firing.
A piece of flue pipe will also improve the draft. But I don't know how far away from your original thought you may want to go.
When I referred to your kiln as little I was by no means trying to slight it in anyway.
I think your kiln will be a real work horse and you will be able to pull an amazing amount of pottery through it.
I hope I don't sound like too much of a know it all with a lot of unsolicited advice.
I am really meaning it to have a conversation.
Thinking is nice, but doing is better. And you seem to be doing very well, cheers.
Thanks for the tips Russell. I fired it yesterday, no problems with the block wall getting hot. I used a few concrete pavers to cover the top and retain more heat. It did get a little smokey at one point but everything came out great. Look for the video of the firing on my channel March 24.
Hello, I can’t wait to see the result. How long does firing a kiln should last ? Also How long after pottery looks red hot should the fire continue? Thank you for your videos it is vers inspiring.
You will need to watch my firing video that is coming up. You can maintain the heat as long as you think you need to. I’m glad you are enjoying my videos.
The last comment I made was reproduced from my failing memory when I hit cancel instead of comment on the very first one.
So I just realized that I had left out this part.
When you are first starting up the kiln, if you place a temporary grate on top of the kiln and build a small hot fire, it will burn away all the smoke coming out of the top. Since smoke is just unburned fuel.
This should help with having a stealthy urban kiln, cheers again.
Good tip, thanks.
What a fantastic video ! Thank you - so glad I found your channel ! Going to binge watch , subscribed and couldn't be happier ! Thx again !
You are always one step ahead of me (lol). This has been on my "to do" list all winter. I need just a few weeks more for the weather to warm up to build mine. I have built a coal forge in almost the same way. I am going to make a few adjustment to your version and add what I learned from building the coal forge on my kiln. If it works, I share with everyone on Instagram. If not, I'll just remake it the way you have done it.
That’s great. I am only ahead of you because the weather here in Tucson has been good.
Hi Andy, your kiln looks a lot like a bloomery furnace for processing iron ore into wrought iron. Those get to 1,000c or so. Have you considered putting in a tuyere below the pottery you can use to force air into the kiln? You can make a clay pipe that your fire and then connect it to a bellows, or an electric leaf blower. You can get crazy heat out of a charcoal charged furnace/kiln that way.
So if I remember right a long time ago there was product called star set. It was used in firer place construction in the fire box where the flame was the hotest, It came in a pail and was not to be frozen.
Sound about right. I used clay because it was cheaper.
Thank you for this video! Nicely done! I'm going to build one of these when the weather warms up. We have a little bit more moisture up here in Northern Arizona, so I will have to find a solution to protect the mortor
You should be fine in northern Arizona.
I'm glad that you addressed ways to protect it from moisture in wetter environments. I live in Washington state and we see a lot of rain where I live. I would build mine on a cinder block platform. Another challenge I would face is the summer burn bans. The burn bans can get so strict that you can only burn in a wood stove and only if it is your primary source of heat for your house.
Wow, those folks in Washington are hard core
We frequently get small wildfires along our highways during the summer, but they get put out quickly. It is the ones deeper in the forests and grassy spaces that are harder to get under control.
Really high quality work. Really amazing.
Pulling up my chair on this project! Excited to see a cone test
Thanks
The discussion at the end is quite important. Most backyard DIY projects I see on the internet don’t discuss modifying how one has to adapt the build to different climates. In my case I would have moisture, snow, and deep frost (=frost heaving) to contend with. So a DIY kiln would cost much more after you factor in the cost of a stable base, and a weather-proof and heat proof enclosure.
Hey, greetings from a native Tucsonan!
Hello fellow Tucsonan.
Thanks for sharing your knowledge. Another cool think to do with clay is make pozzolanic cement.
Loved it! This is going to be my summer project
Awesome, I hope it works out for you. My upcoming video that comes out in Wednesday will show my most recent firing of this kiln.
This is so amazing! Thank you for sharing I cannot afford a kiln but I want to make pottery so bad I'm going to try this asap!
I'm very excited to see what temps you can reach,
We will see. Thanks for watching
Thanks for this, my wife and i wanted to get into pottery. I want a more ancient style wheel and she wants one with a wheel. So we will see how much i like spinning it myself.
I am waiting for the inaugural firing,
I made some mud mortar 10 years ago and I used two type of mixture: 50/50 sand/clay and the other one was 50/50 sand/clay and added 1 part of cement to 9 parts of the mud/clay mixture.
The 50/50 sand/clay mixture got eroded by the elements (rain, wind, hot, cold, sun) and the 9:1 mixture have not eroded at all.
Excellent, thanks for sharing your experience.
Thank you so much for your video. Can anyone please help me with something?? From what I've seen in most videos, the finished product turns to be black or burnt in colour, in that case how can I make it colourful or glaze it?? Can I use the same kiln for glazing too??
Thanks Andy! I’m excited to see it in action!
You and me both!
Great build Andy, we can't wait to see it get fired up. Great point about protection from rain, here in New England it would need its own enclosure. If you need more heat a few mouse holes in the firebox should do the trick.
Thanks Rusty. New England? I assumed you lived in Arlen, Texas.
@@AncientPottery you got me, its really Dale Gribble
I live in phoenixish, i would really love to know more about where, more specifically, uou go to gather your raw materials. I dont know much about oublic lands and i feel like everywhere i look there are mo trespassing signs
excited to watch more videos of this kinda content
Great, I have some of that
Thanks for this, really informative. I'm in Canada, hoping to build one once I move out of the city (forget making a kiln in this city, not even allowed to have a fireplace).
Wow, no fireplaces, I've never heard of that.
Looking forward to the inaugural firing, it will be good. Thanks for the video.
You are welcome. Thanks for watching
Fantastic and inspiring Andy.
Un Saludo grande desde Oakland Cal.que EMOCIÓN LA CERÁMICA...Me encanta la CERÁMICA Indígena....congratulations
Thank you for this very informative video. I love ceramics. I love pottery very much and would love to make my own pots, mugs, plates, & more.
My only problem is finding a way to fire my pieces. We live in an apartment. Hardly no land to the place. Just enough for parking lol. Maybe I can talk with landlord & make a deal?! Thank you sir! 🙏🌹
You are so welcome!
Thank you for the video. I am happy I found your channel
Thanks for watching!
Good build . You could dig vents from bottom to the outside you can control. This will definitely make for a hotter fire in small area.
Yes, I did exactly that, check out the video I made that shows the improvements I made to this kiln th-cam.com/video/b-qNKqwaiy8/w-d-xo.html
You could make a more durable kiln by using fire brick. Use a refractory cement like Satanite to line the inside. Those bricks will spall from moisture and the kiln won't last long. With fire brick inside, you can use regular mortar on the bricks on the outside. Use firebrick on it's ends on the inside to support a grate. Make the grate from rebar welded together, it's cheaper and will last longer.
Great stuff Andy! Finding wood to burn is pretty a daunting task where I live. May I ask if it is possible at all to use gas fire to do the job? I would appreciate a quick reply. Thanks and Regards. Sham Naarai.
This is wonderful....can I bisque fire and glaze fire in this sort of kiln? Thank you for this great video :)
You can definitely bisque fire, you will need temperatures of around 1300 C to melt glaze. I have never had this kiln that hot but I make earthenware so I have never tried either.
@@AncientPottery Thanks so much... :)
I have seen a smelter and now this. Is it ok to have a tremendous flame arms reach from under the roof. Im assuming theres a roof on the wall (perhaps not) but the other guy was right outside the garage door and melting metal so im curious.
Thanks for all the great videos 👍
You are welcome
Hi Andy! How high up does the barbeque rack need to be from the bottom of the kiln and can you have two racks for extra pottery? So you can fire items without glaze on the bottom rack and with it on the top rack? How hot does the top end of your kiln get? Any suggestion on how to get it to burn to at least 1,000 celsius? What did you use for a lid on this kiln? Thanks and great video!
I'm working on a video about how best to fire a kiln like this. I have never had it up to 1000 C but I do believe it could be done with a little more time and effort. I have never tried two stacks. I was just putting some bricks over the top for a lid but now I am building a little chimney with bricks and find that works much better as it increases draw. You can see this method in this video th-cam.com/video/4z3x8psUUbE/w-d-xo.html Like I said I will be making a video showing my thoughts and methods on firing this and getting the most from it.
Awesome video I can’t wait to try this thank you!
Hello and thank you for making this video. I live in the city and have a small back patio area, with concrete/pavers down in the ground. I noticed you dug up some ground and placed the bricks in, and I am just wondering if it is still ok to build a kiln without a dirt ground, and if so how would be best to do so. All of the videos I have seen are working on dirt ground. Thanks again!
Yes, just put some dirt between the pavers and the fire to protect the pavement from being damaged.
Hey Andy - so glad to have your videos. I'm about to build my first wood fired kiln in northern France, so eagerly watching your video's. 🙂
Awesome, thanks for watching.
Thank you very much. I watch a lot of these YT walk-throughs and this one was very well made.
If I wanted to buy the mortar/adobe by the bag, at say Home Depot or Lowe's, could you give a recommendation as to the brand that I would want?
Really great video 👍🏽
Thank you! 👍
Hey Andy, what cones can you fire to? I believe doing a cement outer coating of the kiln would insulate the pottery a lot nicer and allow for a more stable and easier firing method.
I never use cones so can't answer that question directly. I do use a thermocouple to measure temps in my kiln and I regularly hit about 850 to 900 C. I am sure I could go higher if I wanted to and spent more time at it, but those temps are perfectly fine for the pottery I am making.
❤ Dziękuję za przekazaną wiedzę.Pozdrawiam z Polski❤
You are welcome.
Hi,
Really instructive and good videos for me as a novice but potterycurious guy. Do you have any video about fire bricks? When to use and when not? This is really confusing to me and I do not get a clear picture of this topic. You mention below you are not targeting high temp so firebricks are not needed for this kiln. But you are still targeting 800c for burning pottery right? I guess my question is when to use fire bricks and when can I use regular bricks?
I said "I think" fire bricks are not needed, I have never done this before so I am learning as I go. But it seems logical to me that these bricks were fired much hotter than 800 C when they were made, so I would assume that 800 would not adversely effect the bricks. Only experience will tell me how they work. I certainly could never have made this kiln so cheaply if I had to use fire bricks.
What about using refractory cement instead of the mortar? Will add to my cost but think the stability and ability to take the heat would be worth it?
Yes, that would work great. In my case I was trying to keep the cost down so mud mortar was a better option for me.
I live in a city my yard is half Concrete patio type and then some grass dirt area could I build this right on the concrete slab or does it have to be on the dirt
You could put it on the slab, just put a couple inches of dirt at the bottom as a buffer between the fire and the concrete.
Me n my friend got a hold of an old concrete drain Pipe.. im thinking perfect kiln/ smelter
That's an interesting idea, I hope it works out.
Hey Andy. Could this kiln perhaps be upsized for firing large quantities of bricks?
I know this is an older video ao i dont know if you will see this.
What kind of bbq grill did you use? Was it one that had fire? Thanks
Can you use mortar and river stones? Im pretty broke but theres all sorts of rock where i live
Or cement and stone?
Sure you can, but I would prefer mud mortar to cement as the concrete may not hold up well to those high temperatures. Pottery doesn’t have to cost a bunch of money as it’s made from natural materials.
great build, thanks for sharing, do you have a video where you fire up this kiln ?
Yes, here th-cam.com/video/zk-9iWQfJgc/w-d-xo.html and here th-cam.com/video/b-qNKqwaiy8/w-d-xo.html
@@AncientPottery thanks, watched both, very interesting and well filmed
So I made something like this wanted to make a kiln a traditional way but we had a heavy downpour and my mortar washed away and the whole thing collapsed. How do I prevent this in the future?
Protect your kiln from the rain, put a tarp over it or even a piece of tin or something to keep the rain off.
If I wanted to make my own clay bricks for the kiln, can I fire the bricks on the ground with wood like I would do for pottery?
Im just curious what is your opinion on kilns with a long tunnel? Ever planned to craft one?
Nice video, I will definitely give it a shot to building my own. Could you recommend a device to measure temperature, possibly one that I could get on Amazon. Thank you so much. Great great video
Something like this should work amzn.to/3yCwMha
Is there a way to reasonable test the clay for arsenic and other chemicals before using them as food grade or do the extreme temps burn everything away?
Maybe, but I wouldn't know. Our ancestors ate off of natural earthenware and they weren't dropping like flies from their pottery. I would assume that it is generally safe and like a lot of things in life, just take my chances with the rest.
@@AncientPottery our ancestors didn’t have crazy pharmaceutical companies traversing the earth with their poisons or airplanes flying all over the skies, though, but I understand the sentiment: “Do your best and don’t sweat the rest.” Still for all we know there were advanced civilizations to rival ours in the very distant past that polluted the earth as well.
the probe is reading in centigrade and the blue hand held reader is reading Celsius, that might explain why there was a difference between readings
They are the same thing
I love watching your videos Andy: so informative and who knows, one day I may build my own kiln and fire some of my pottery using your methods :-)
Thanks
Can I build a safe water rain contaijer with these same material? Instead of buying the plastic ones?
I guess but it would not be waterproof unless you sealed it with something.
Time to find some free bricks on Craigslist! This tutorial was exactly what I was looking for
Glad it was helpful.
I'm wondering if it gets hot enough for raku. We'll see.
I'm not super familiar with the raku process, but someone here said that it needed to reach 900 C for raku and I have had this kiln up to 900 before.
@@AncientPottery Raku is fun for the pyromaniac in most potters. I saw your kiln got nearly to 900 on the first firing. I'm sure it will get hot enough. Thanks for the information. I've been wanting to get back into pottery for years, but didn't have access to a kiln. Now I can build my own.
I just want to make sure, red clay dirt and just reg sand from anywhere?
And would it be OK to use the flat stepping stones as a base (floor) or just leave it all on ground? 🤔
Well generally yes. But all clay is different so I can’t vouch for all clay anywhere on earth.
I live in the volcano area of the Pacific NW. We do not have actual soil in my area unless we make it ourselves: compost and other ingredients. What I'm wondering is that our soil is primarily volcanic pumice. What could I use as a bonding agent with the volcanic pumice to make the mud to build a pottery kiln?
No idea, in fact the Pacific NW tends to get a lot of rainfall so the mud mortar may wash away rather quickly in that kind of climate. If you don't have access to any wild clay the best choice might be either to buy clay or to buy mortar. But really I am just guessing here.
Have you made the video of you using this kiln yet? Have just discovered this. Thanks
Howdy Andy, I loved your video and learned a ton... I had a couple questions after watching maybe you could help work through. I am trying to do a lot of research to make the best DIY Smoker, to smoke meat like ribs, brisket, etc. I dove into the kiln design DIY world to better understand a different niche with a relatively similar goal; Design a cheap, safe, effective, and efficient contained heating source. It is worth quickly pointing out the major design differences are going to be related to food safety and design for food use, Lid design, and the lower temps of smoking meat 220-600 degrees operating temps. My questions are as follows:
1. What is the best food safe alternative to mud... I have thrown around the idea of building this kiln around a metal barrel to eliminate this problem of mud crumbling onto the food but this is far more intensive and ultimately more expensive. Is there a good alternative to mud like concrete or some cheap brick mortar that can do fine at my lower operating temperatures?
2. For long term use is it worth building this on a structure of foundational bricks...I imagine getting ash out does not matter as much when making pottery if you can use something to start the flame but in the smoking meat hobby it is super important to sift all charcoal ashes out between smoking's for the flavor of the meat. I will probably design and weld a sifting table for the charcoal to sit on and have holes to sift out the ash... but having a layer of brick underneath may allow me to scrape out any ask build up over time. In your use of the Kiln has cleaning out ask ever come into play or is it just as easy as taking a small shovel and scraping it out and whatever dirt comes along is no worries?
3. One design feature I am a little stuck on is the lid, it would be great for it to be hinged and light enough to move, as well as be insulative and seal against the body of the smoker. Generally lids are shaped like an upside-down bowl to increase the velocity of the smoke coming out of the top and act as a sort of nozzle. I have kind of deduced it has to be metal just because it needs to be formable, mountable, light, but it really gives up a lot on the insulation front... do you have any clay ideas for a lid like this or any other material for that matter?
I am sorry for the lengthy essay just thought I would try to gain more insight from any expert I can reach. I hope you keep having a great time and keep up the amazing content, I will be sure to stay tuned :)
Wow, lots of text... Wish I had more time to answer these "essay questions".
I live close to Tucson. ❤️ This will be perfect for what I want to do. Thanks!👌🏽👍
Yes, it works perfect in this climate.
Thanks man . Real informative , and you seem like a cool dude 🙏
Thanks
Hi Andy .. I want to do a shelf for gas kiln but I don't know how..little help please🙏
Sorry I have absolutely no experience with kiln shelves or gas kilns.
Is there a fire brick pre mix mortar for walls I can get?
Really enjoyed this video! A wish that came to mine is, I would of loven seeing a fireing in this video. (Maybe a way to improve content)
Have a lovely day!
I am so excited to get started. I have so many questions though; for starters, is a thicker wall on the kiln better, or is it better to be thinner walled?
Thanks! Thicker walls will hold heat better, thinner walls cool more quickly. My earlier kiln was made from adobe with walls that were about twice as think as these and it stayed hot longer. You can see that one here if you haven't already seen it th-cam.com/video/XjpxfkSBPgo/w-d-xo.html
@Frank James hi. Do I know you?
I did some excavating on my property last year. We have a large clay layer in our soil and high amounts of clay in the soil so I saved several buckets of the clay I uncovered. Have always wanted to build a kiln and make some things. I made a brick rocket stove out of bricks laying around a number of years ago to barbecue on. You have inspired me to turn that into a kiln. Also I have always wanted to take some of the extra limestone we have and burn it to make lime mortar to do authentic repairs on my 1899 walls. I wonder if that could be accomplished in one of these little kilns as commercial operations once did on a large scale? Even though we have limestone readily available finding real lime powder or mortar without chemicals added to do burnished lime on walls has become almost impossible in my area.
I have actually wondered about that myself. A quick Google search shows that you only need a temperature of 700 C to produce lime. Although you may need to maintain that tempe over a period of time to make sure your limestone gets heated all the way through.
@@AncientPottery I saw a video of a guy who did it on his farm with a huge bonfire with the rocks piled in the center. Sort of like an outdoor firing of pottery. He stacked the wood very specifically so that it slanted in toward the limestone and would concentrate the embers into the middle as it burned. It worked, but I don’t have the space for a fire that big.
Nice video! Will this only work for pottery and ceramics? I want to get into lamp work, I'm new to all of this stuff and i cant afford a kiln and i think it would take too much energy anyway. Thanks for the hard work 😄
If you had to do this again, would you leave a couple bricks without mortar to be able to remove them to add air? If so, at what height would you have the non-mortared bricks?
Yeah, maybe that would be a good idea. I need to do another firing and try some things to make it burn better.
Probably a daft question but...does it have to be round? Will a square one work?
A round kiln is probably a more even heat as a corner could get cooler. Many/most ancient kilns are round.
How much wood would this take to bisque fire pots. The more I look at this the more i want to do it.
Not very much wood. It is quite efficient.
LOVE your show thank you !
You are so welcome
Just one question….I’ve seen where straw was added to the clay with some. What’s your thought. Thanks
Adobe is just like pottery but on a larger scale. The straw acts as temper, the same as sand. Straw however can provide a pathway for moisture to get into your structure, sand is better because it works the same but does not wick moisture in like straw does.
Sand it is! Thanks for the reply and advice.
Are we allowed to use cement instead of the clay sand mix?
If you want to use proper mortar between the bricks you will want to use refractory mortar so that it can withstand the temperatures.
If you add a metal grate in the front of the fire box, this would keep the fuel off the ground allowing better air flow. Also if you add a fan or something to blow air into the kiln you'd reach much higher temperatures..(Like a rocket stove.) Good luck with the first firing! )
Thanks you for the tips. Yes, oxygen will make a big difference in the temperatures.
So, how far does a kiln like this needs to be from buildngs or hedges? I see your is quite close to a wall of some sorts. I love quite small with a small garden and the sized are all hedges!
Hi Andy, great video.
Quick question, if you don’t mind.
Sweet dungarees where’d you get them?
Look like a sturdy pair, I myself am in the market for a new pair would appreciate a recommendation.
Thanks again for the video.
Thanks, they are Liberty Overalls. I buy them at Cal Ranch locally. amzn.to/3HbSHxF
Love this vid!
Thanks
I like your taste in music
Thanks you
How hot does it get? I'm going to be using this for metal clay pieces, and I need to make sure that it gets hot enough to fire the pieces, but not melt the pieces.
I have had it up over 900 C, but I think I could get it hotter, I just have no need to get it any hotter than this.
1652° F (900°C) is good enough I believe for small metal clay pieces. Thanks.
Can we use cement instead of the mud to hold the bricks together?
Yes, but I am not sure how the cement will hold up to those high temperatures.
I watched your adobe kiln video and now this one (thanks to Pinterest). The adobe one reminded me of some rocket stove videos that I have watched. Now I'm keen to give this a go. I haven't thrown pots since high school and I'm retired now so I think I had better get to it. Can't wait to go back and catch up on the rest of your videos.
Great! Thanks for watching, I hope your kiln works well for you.
Hello !! I was wondering if I could use cement instead of sand and clay ??! Pls lmk thank you ❤️
You could but the cement would not hold up to the firing temperatures over time
I would say put kiln shelf stilts sideways into brick to hold a kiln shelf or your barbecue grill grate.
I dont know if anyone else asked this, but can you use a regular mix of cement to build this?
Regular cement doesn't hold up well to high temperatures. When they build fireplaces or kilns or other things that will get hot they use something called "refractory mortar" which is a bit more expensive than ordinary mortar.