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!

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.

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

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.

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.

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!

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 !)

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!

Was there a supercharged car racing in the back round. Lol

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!

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!

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

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, thanks! Quick Q...it's looks pretty heavy! How did you move it? Just manpower?

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!

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!!

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?

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. :-)

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

I saw a previous oven that you made, you use vermiculite. Why now use perlite and white cement?

Unreal!!! Do you need to seal the oven before use or is it good to go?

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

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.

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.

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?

Hi good video, would this mix work in a form I want to do a rocket stove pizza oven, or would it crack ?

Hi! Does the mix contain cement or concrete? And also, how does it hold up through the years?

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?

Please explain what do you mean by "parts" ? Parts by Volume or mass's ? Thank you

How much vermiculite did it take in total?

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

Have you added any Ceramic Fiber Insulation to any of your ovens? Thanks again man,,, Brian

One last question. Have you ever thought of using a fire brick base set in perlite or vermiculite?

Going to try this with refractory cement and perlite - do you think the mix ratio would be the same 5-1 ?

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

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?

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

May I ask, how heavy was your completed oven when you needed to move it? A 2 man job, 1 man, 3 men?

Are the 5to1 ratio is by weight or volume?

Let me clarify. I was referring to the completed dome.

I see many videos that have insulation layer. I take it this is not a requirement with layers that thick and cheaper also?

Thanks for posting! Do you prefer the perlite or the vermiculite pizza oven? Which would you recommend I build? :)

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

Did you say you were going to sand it when you were finished?

Where did you get your perlite from?

Do you think adding fiberglass to the mixture would help prevent cracking?

How is the oven holding up?

But serious question. Why not use refractory cement insted of perlite?

What do you mean by part?

Hi have you fired it up yet?

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.

Are you in NZ mate

Que cantidad de perlita entro

Where is part 4 ☺

No way under the sun that worked .