Wish me luck! I'm just starting an oven today. I've watched many videos on this, and going with yours because you didn't edit out your mistakes. It's honest. Thank you for that. I'll let you know how it goes!
Beautiful! I'm frickin' in love with my oven! Wish I could post a photo and video clip to this. I had guests over for our 4th of July celebration, and cooked 16 pizzas. Everyone drooled. Thanks!!!
Hoping for the best and terrified of a fail lol. I used 1.5 parts portland 2 parts fireclay 2 parts sand and 4 parts perlite. So far it has hardened to a very hard shell. I intend to cover it with insulation and give it a render coat that I can paint to try and keep out moisture the best I can
I'm in process of making one of these, and have had quite the difficult time with it. Watching your video I see a couple mistakes I made along the way: 1) my ball was not set deep enough into the cutout, so the ball actually went out some at the bottom before curving in, that caused the lower layer to push out during the build process and having the whole thing come apart. 2) looks like I had my perlite/cement ratios off. I started with 5:1, but on my 4th attempt, I'm now at ~3:1, which matches your 5:2 ratio. My next step is the chicken wire like you did. thx for the info!
i just made the same mistake with the ball setting and got a landslide and avalanche at the end that i tried to repair. I also did 5-1 ratio that didnt help either I think I think its going to fall to bits on me when I try to move it. And trying to make it all in one night was stooopid. Live and learn I guess. Maybe one day ill get past learning from costly mistakes. I fear death will beat me though. Im 52 and still messing up right, left and center. Just watched another vid where the bloke fiberglassed the ball first. I think that might be a good idea, a bouncy mold didnt help. And i skipped the chicken wire step to save time (doh).
Your last video for the first layer was 5 parts perlite 1 part cement 2 parts water, the second layer was 5 parts perlite, 2 parts cement, 2 parts water, so it's not the same mix!! Also when mixing anything with cement you can't do it in stages as it will create a joint that will be weak. The second wet layer will not adhere to the already dried first layer it all needs to be molded in one section at the same time.
dont know if you guys gives a shit but if you are bored like me during the covid times then you can stream all the new movies on InstaFlixxer. I've been binge watching with my brother lately :)
cool im about to start the same process. but the door should be behind the chimney based on traditional Neapolitan designs. Also im thinking of adding clay to the mix or using a CAC / perlite mix.
Do you need to do the wet towels again over the second coat of percrete mix? Or do you just let it dry out and start the 6 week process from there? Thank you!
Have just been watching your vids on your Perlite oven, When its finished how do you ensure it is fully sealed and waterproof? Just asking as I am building an oven into a retaining wall so the whole of the dome is to be covered with earth and am not wanting it to get damp inside! Like the easy to follow videos!
in the last video you said 1 part Cement, in this video ure saying 2 parts cement just like before so thats a pretty important thing to get right im guessing so whitch one is right
Great video :) I have a question. Do you think I can cover the oven with small stones or mosaic? Put it on with heatresistant mix (don´t know what is´s called in english) And 60 liter ball, how big is that?
ΤΗΕ DOGO I wanted to see if it was better. I have also added reinforcement to this oven to help prevent cracking. When it’s installed i will do some heat comparison tests.
Why do you use perlite in the mix? Wouldn't you want the first layer to be more dense to retain heat? I would have thought no perlite but add stainless needles for strength
2 persons to avoid it breaking, although I did lift a perlite one that I’d made a bit thicker on my own. It’s more the awkward size and shape than the weight that’s the problem. Hope that helps.
I used 5 parts perlite 1 water 1 cement. Day of curing with a wet sheet over it and I spray it down every day. Is it normal to have a lot of little "crumbs" come off? Should I do one more layer of the lerlote mix but this time use the 5-2-2 you mentioned in this video? Thanks for the advice
Brando23 yep the crumbs are normal. Where are you in the world? I used a sheet as it was hot weather when I made it. The second layer is definitely necessary to give thermal mass.
@@foodrelated East coast USA. It's just Spring here and in the 55-60's temps. I read the wet cloth will slow the cure and make the cement stronger. Thanks for the advise. I will definitely add another layer this weekend but this time use 5-2-2 thanks for the great videos
Brando23 how did it work? i did the same ratio as you did 5-1-1. been drying for 2 weeks now under saran wrap Ontario Canada. some jagged parts of it flake off and it seems normal to me. Did you do your second coat at 5-2-2?
@@StornowayCG well it turned out to not be just crumbs. I could just run my hand over the perlite and it would just keep crumbling until it was gone if I didn't stop. I think the 5-1--1 was just too little cement to keep things together. After researching more, it seems that even with the proper ratios, there is still a high risk of the high heat breaking down the cement and nasty stuff getting in your food. I covered the outside of the mold in homemade fire clay cement to keep the crumbling from happening. I still have to find something to coat the inside of the oven with so the perlite is covered as to not get into the food. Hopefully you wont run into this problem
I built one of these last year, its good, but does get wet and absorb moisture. I made it with refractory cement and perlite. Any idea what to render it with to make a smooth paintable waterproof cover?
Quick question mate: just finished my first and potentially only coat on the ball and all. I’m running at about 7-8cm thick. I found the more pressed down to attempt to compact the “percrete” I saw it kind of naturally forms separation lines. I got the wet cloth on it now. Still have some perlite and concrete and I’m debating weather or not to apply a 2nd coat maybe 3cm later on, but heavier on the water (5-2-2,5 ?) in order for this 2nd coat to seep through these naturally forming separation. Thoughts??? Love the videos btw, using them for my guideline! Cheers from Montreal!!
SUGGEST YOU FORM THE WIRE ON THE BALL ...before PLASTERING … THEN ITS CURVATURE WILL BE (HOPEFULLY) JUST RIGHT !! P.S. Am looking guiltily at a 100 Lt bag of Perlite across from me .. going to add some sodium silicate to up the mix's refractory properties ..(another Utube vid !)
I'm doing a brick oven, gonna add for my floor before firebrick. Looks like a good insulator. Dont want to buy silica board, looks expensive. Any comments would be appreciated.
Great video! I have a question. How would it work if you set up the ball exactly like you have here but rather than try to keep the perlite to form around the ball's exterior, just build a box around the whole thing and completely fill it in with perlite? Sounds crazy and the ascetics would not be as nice, but that would give it great insulation and be easier to do. You would wind up with a square oven with a domed interior with very thick walls. Just an idea. I see that it would be uglier, heavier, and more expensive. But it would work, I think! And the perlite doesn't seem too expensive. You could easily add chicken wire to make it structurally sound too. It would be sturdy, but less portable. Any thoughts? This could be your next experiment. :-)
Haha not sure about my next project!! In theory it work, you would need to make sure you packed it in. I like the idea of using a ceramic blanket for better insulation as well. Definitely incorporating one (somehow) into my next oven at home.
hello when you say parts of perlite or cement is volume parts? i.e.: buckets? and since you build it to nowadays still good or was cracked? nice design
Rachael Reeder I think it would work. I guess it would depend on how hot the rocket stove would get. From what we have seen from the perlite ovens we have made, they don’t crack at 400deg C
In the process of planning my own pizza oven. Curious to the perlite vs vermiculite. Have you had problems with cracking with the vermiculite one you made in previous videos? I have heard it can be a problem, something to do with water retention vs perlite. Hello from just down the line in Warkworth. Great videos, keep up the good work!
Great work but I do have a question. We inherited a pizza oven when we got our house last year. Its in need of some love! Bits of concrete falling off. The main dome has been created with brick with chicken wire attached to it. First question - Can I use the method that you show here straight on the brick and chicken wire surface? I wanted to put a mosaic on the dome with some broken floor tiles. Second question - Should I wait 6 weeks before creating the mosaic on the dome .....or is it better to go straight in with that layer same day or maybe a week after done the job. The reason was my thinking was that the tiles and grout which in my mind may act as a barrier by keeping it moist ? If you could help that would be great ! Thx in advance
SD SD I think you could add a perlite mixture on top of your brick/chicken wire. Whether you mosaic right away or wait a few weeks would depend on where you are in the world. If it is hot where you are wait at least 2 weeks before adding your mosaic. I usually leave all my ovens for at least 6 weeks before firing so they have time to cure and dry out so they don’t crack. Because you have bricks I do t think you need to wait this long. It’s all a big experiment at the end of the day!!
Is it possible to use an outer form (heat resistant) that will stay on after the build? How thick does it need to be 60-70mm or 100mm? Or would the perlite concrete expand and crack the form? Thanks.
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Wish me luck! I'm just starting an oven today. I've watched many videos on this, and going with yours because you didn't edit out your mistakes. It's honest. Thank you for that. I'll let you know how it goes!
Good luck!
Any update yet?
How did you get on?
Beautiful! I'm frickin' in love with my oven! Wish I could post a photo and video clip to this. I had guests over for our 4th of July celebration, and cooked 16 pizzas. Everyone drooled. Thanks!!!
Bob Sullivan great to hear. Thx for the update. Stay safe down there.
Hoping for the best and terrified of a fail lol. I used 1.5 parts portland 2 parts fireclay 2 parts sand and 4 parts perlite. So far it has hardened to a very hard shell. I intend to cover it with insulation and give it a render coat that I can paint to try and keep out moisture the best I can
I'm in process of making one of these, and have had quite the difficult time with it. Watching your video I see a couple mistakes I made along the way: 1) my ball was not set deep enough into the cutout, so the ball actually went out some at the bottom before curving in, that caused the lower layer to push out during the build process and having the whole thing come apart. 2) looks like I had my perlite/cement ratios off. I started with 5:1, but on my 4th attempt, I'm now at ~3:1, which matches your 5:2 ratio. My next step is the chicken wire like you did. thx for the info!
i just made the same mistake with the ball setting and got a landslide and avalanche at the end that i tried to repair. I also did 5-1 ratio that didnt help either I think I think its going to fall to bits on me when I try to move it. And trying to make it all in one night was stooopid. Live and learn I guess. Maybe one day ill get past learning from costly mistakes. I fear death will beat me though. Im 52 and still messing up right, left and center.
Just watched another vid where the bloke fiberglassed the ball first. I think that might be a good idea, a bouncy mold didnt help. And i skipped the chicken wire step to save time (doh).
Please explain what do you mean by "parts" ?
Parts by Volume or mass's ? Thank you
Your last video for the first layer was 5 parts perlite 1 part cement 2 parts water, the second layer was 5 parts perlite, 2 parts cement, 2 parts water, so it's not the same mix!! Also when mixing anything with cement you can't do it in stages as it will create a joint that will be weak. The second wet layer will not adhere to the already dried first layer it all needs to be molded in one section at the same time.
dont know if you guys gives a shit but if you are bored like me during the covid times then you can stream all the new movies on InstaFlixxer. I've been binge watching with my brother lately :)
@Emmett Roberto Definitely, I've been using Instaflixxer for since december myself :)
cool im about to start the same process. but the door should be behind the chimney based on traditional Neapolitan designs. Also im thinking of adding clay to the mix or using a CAC / perlite mix.
Are the 5to1 ratio is by weight or volume?
Do you need to do the wet towels again over the second coat of percrete mix? Or do you just let it dry out and start the 6 week process from there? Thank you!
How much vermiculite did it take in total?
Have just been watching your vids on your Perlite oven, When its finished how do you ensure it is fully sealed and waterproof? Just asking as I am building an oven into a retaining wall so the whole of the dome is to be covered with earth and am not wanting it to get damp inside! Like the easy to follow videos!
in the last video you said 1 part Cement, in this video ure saying 2 parts cement just like before so thats a pretty important thing to get right im guessing so whitch one is right
Great video and it helped me a lot! A quick question, when is a good time to remove the exercise ball and then the entrance mold? Many thanks!
Depending on drying times 10 days to 2 weeks.
You could go longer but it would mean the inside of the dome would need longer to dry also.
Great video :) I have a question. Do you think I can cover the oven with small stones or mosaic? Put it on with heatresistant mix (don´t know what is´s called in english) And 60 liter ball, how big is that?
Just a large fitball.
Definitely mosaic it
Unreal!!! Do you need to seal the oven before use or is it good to go?
Good to go
I saw a previous oven that you made, you use vermiculite. Why now use perlite and white cement?
ΤΗΕ DOGO I wanted to see if it was better. I have also added reinforcement to this oven to help prevent cracking. When it’s installed i will do some heat comparison tests.
What do you mean by part?
Why do you use perlite in the mix? Wouldn't you want the first layer to be more dense to retain heat? I would have thought no perlite but add stainless needles for strength
I’ve been trying to locate stainless needles here in New Zealand, but cannot source them. If anyone in NZ knows a source, please let me know. Cheers
Let me clarify. I was referring to the completed dome.
2 persons to avoid it breaking, although I did lift a perlite one that I’d made a bit thicker on my own. It’s more the awkward size and shape than the weight that’s the problem. Hope that helps.
I see many videos that have insulation layer. I take it this is not a requirement with layers that thick and cheaper also?
Correct
I used 5 parts perlite 1 water 1 cement. Day of curing with a wet sheet over it and I spray it down every day. Is it normal to have a lot of little "crumbs" come off? Should I do one more layer of the lerlote mix but this time use the 5-2-2 you mentioned in this video? Thanks for the advice
Brando23 yep the crumbs are normal. Where are you in the world? I used a sheet as it was hot weather when I made it.
The second layer is definitely necessary to give thermal mass.
@@foodrelated East coast USA. It's just Spring here and in the 55-60's temps. I read the wet cloth will slow the cure and make the cement stronger. Thanks for the advise. I will definitely add another layer this weekend but this time use 5-2-2 thanks for the great videos
Brando23 good luck. Hope it goes well
Brando23 how did it work? i did the same ratio as you did 5-1-1. been drying for 2 weeks now under saran wrap Ontario Canada. some jagged parts of it flake off and it seems normal to me. Did you do your second coat at 5-2-2?
@@StornowayCG well it turned out to not be just crumbs. I could just run my hand over the perlite and it would just keep crumbling until it was gone if I didn't stop. I think the 5-1--1 was just too little cement to keep things together. After researching more, it seems that even with the proper ratios, there is still a high risk of the high heat breaking down the cement and nasty stuff getting in your food. I covered the outside of the mold in homemade fire clay cement to keep the crumbling from happening. I still have to find something to coat the inside of the oven with so the perlite is covered as to not get into the food. Hopefully you wont run into this problem
I built one of these last year, its good, but does get wet and absorb moisture. I made it with refractory cement and perlite. Any idea what to render it with to make a smooth paintable waterproof cover?
Cool!
You could try a lime plaster?
Do you think that would be ok with the heat? I guess the outside doesn’t get too hot.
Quick question mate: just finished my first and potentially only coat on the ball and all. I’m running at about 7-8cm thick. I found the more pressed down to attempt to compact the “percrete” I saw it kind of naturally forms separation lines. I got the wet cloth on it now. Still have some perlite and concrete and I’m debating weather or not to apply a 2nd coat maybe 3cm later on, but heavier on the water (5-2-2,5 ?) in order for this 2nd coat to seep through these naturally forming separation. Thoughts??? Love the videos btw, using them for my guideline! Cheers from Montreal!!
Sounds about right.
A second wet mix should work.
Good luck
SUGGEST YOU FORM THE WIRE ON THE BALL ...before PLASTERING … THEN ITS CURVATURE WILL BE (HOPEFULLY) JUST RIGHT !! P.S. Am looking guiltily at a 100 Lt bag of Perlite across from me .. going to add some sodium silicate to up the mix's refractory properties ..(another Utube vid !)
Thank you.I wait for the tests. This days i made an oven with vermiculite and cement and i hope to work. i follow your videos.
ΤΗΕ DOGO thanks!
Have you added any Ceramic Fiber Insulation to any of your ovens? Thanks again man,,, Brian
Not yet, but keen to research.
The first layer I put is a bit thin and it starts to crack after a week of curing... Should I patch it up or should just redo the whole thing?
Jenny Ying start again. Use perlite or vermiculite instead of sand in your mix...
Watch my other videos for a recipe.
Hey man love your vids. I’m looking to order my perlite. How much approximately did you use in total for the oven and the floor? Cheers
100 litres (medium grade P240)
May I ask, how heavy was your completed oven when you needed to move it? A 2 man job, 1 man, 3 men?
2 man, not overly heavy but awkward due to the size/shape
Great video, thanks! Quick Q...it's looks pretty heavy! How did you move it? Just manpower?
Only weighs around 25-35kg (depending on thickness) when finished. Easy lift for 2 people.
Going to try this with refractory cement and perlite - do you think the mix ratio would be the same 5-1 ?
May be worth doing a small test brick in an ice cream container using the ratio and see if it works
But use 5:2
Food Related thanks
Are you in NZ mate
Yep
do you have a video for the base of the perlite oven or it is the same way you did the vermiculite base but with the perlite?
also what is the size of your exercise ball?
No video for that, because we put that oven on top of firebricks.
The exercise ball was 80cm I think...
Food Related is it just laid on the fire bricks or did you glue it ???
What size exercise ball did you use? And what size is your ply sheet you use. I am just trying to work out base ideas
Thanks
Ben Collins 65cm ball, base approx 1000x1000mm
Great thanks , thanks for the reply big help 👍👍
I'm doing a brick oven, gonna add for my floor before firebrick. Looks like a good insulator. Dont want to buy silica board, looks expensive. Any comments would be appreciated.
Daniel Wallingford Gove it a go, should work
Great video! I have a question. How would it work if you set up the ball exactly like you have here but rather than try to keep the perlite to form around the ball's exterior, just build a box around the whole thing and completely fill it in with perlite? Sounds crazy and the ascetics would not be as nice, but that would give it great insulation and be easier to do. You would wind up with a square oven with a domed interior with very thick walls. Just an idea. I see that it would be uglier, heavier, and more expensive. But it would work, I think! And the perlite doesn't seem too expensive. You could easily add chicken wire to make it structurally sound too. It would be sturdy, but less portable. Any thoughts? This could be your next experiment. :-)
Haha not sure about my next project!!
In theory it work, you would need to make sure you packed it in.
I like the idea of using a ceramic blanket for better insulation as well. Definitely incorporating one (somehow) into my next oven at home.
Was there a supercharged car racing in the back round. Lol
Did you say you were going to sand it when you were finished?
We have it a light sanding. Started with 100 grit and worked up to 240. Not a smooth finish but got rid of most of the lumps
hello when you say parts of perlite or cement is volume parts? i.e.: buckets? and since you build it to nowadays still good or was cracked? nice design
Denis None ratio parts, depending what size bucket/container you use.
@@foodrelated have you done the testing, is this perlite oven still working , please reply as I am making one
I Tom, I'm waiting how many days to make the second layer with the chiken wire? Can I finish with fireproof concrete? Thanks for answer
annie bouchard I waited 2 weeks to allow the first layer to dry up a bit.
But serious question. Why not use refractory cement insted of perlite?
Kyle Avery perlite makes it lightweight and is a lot cheaper
@@foodrelated awsum alright thanks for the response
Ok another question. Have you ever thought about putting the fiber glass reinforcement like they do on concrete into your mix for added strength?
How is the oven holding up?
Eric Valente owner seems happy and he has used it a few times
Hi good video, would this mix work in a form I want to do a rocket stove pizza oven, or would it crack ?
Rachael Reeder I think it would work. I guess it would depend on how hot the rocket stove would get. From what we have seen from the perlite ovens we have made, they don’t crack at 400deg C
tompeyton1 well I will have a go and will let you know later in the year if it works and what temps it’s working at . Thank ya
Hi! Does the mix contain cement or concrete? And also, how does it hold up through the years?
Suburban Stone Age cement, amounts are in the description.
@@foodrelated great, thank you so much!
In the process of planning my own pizza oven. Curious to the perlite vs vermiculite. Have you had problems with cracking with the vermiculite one you made in previous videos? I have heard it can be a problem, something to do with water retention vs perlite. Hello from just down the line in Warkworth. Great videos, keep up the good work!
Jeremy Marshall yes we he first oven I made has a small crack at the back, but isn’t getting bigger. My fault though as I took it too hot.
Do you think adding fiberglass to the mixture would help prevent cracking?
I'm in the process of building my pizza oven now and will be adding fibreglass. Will let you know how it turns out.
@@soullimbo Thanks. I hope it helps.
One last question. Have you ever thought of using a fire brick base set in perlite or vermiculite?
Jeremy Marshall Sounds like a great idea. To be honest it’s all a learning process!
Where did you get your perlite from?
Matthew Funnell local horticulture wholesaler
Hi have you fired it up yet?
just installed it at my friends house. He will light it in a few weeks when he has installed his chimney.
Great work but I do have a question. We inherited a pizza oven when we got our house last year. Its in need of some love!
Bits of concrete falling off.
The main dome has been created with brick with chicken wire attached to it.
First question - Can I use the method that you show here straight on the brick and chicken wire surface?
I wanted to put a mosaic on the dome with some broken floor tiles.
Second question - Should I wait 6 weeks before creating the mosaic on the dome .....or is it better to go straight in with that layer same day or maybe a week after done the job. The reason was my thinking was that the tiles and grout which in my mind may act as a barrier by keeping it moist ?
If you could help that would be great ! Thx in advance
SD SD I think you could add a perlite mixture on top of your brick/chicken wire.
Whether you mosaic right away or wait a few weeks would depend on where you are in the world. If it is hot where you are wait at least 2 weeks before adding your mosaic.
I usually leave all my ovens for at least 6 weeks before firing so they have time to cure and dry out so they don’t crack. Because you have bricks I do t think you need to wait this long.
It’s all a big experiment at the end of the day!!
Thanks for posting! Do you prefer the perlite or the vermiculite pizza oven? Which would you recommend I build? :)
themonkeydrunken perlite. Seems stronger and harder
Where is part 4 ☺
What is the max heat that this type of oven can endure?? Or max heat that you've achieved, anyway. Kudos on the oven building.
Djurowsky Djurowsky probably around 350-450. Wouldn’t go too hot or it WILL crack!
Que cantidad de perlita entro
Aproximadamente 25-30 litros de perlita. Acabo de usar un contenedor para obtener la proporción correcta.
No way under the sun that worked .
Is it possible to use an outer form (heat resistant) that will stay on after the build? How thick does it need to be 60-70mm or 100mm? Or would the perlite concrete expand and crack the form? Thanks.
What would the outer form be made from?