This video is about building a Wood Burning Oven over a gym ball for cooking Pizza
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@MarvelousLXVII3 жыл бұрын
I watched this video a year ago and finally made one. I went with perlite instead of vermiculite because I heard it holds up more. I did a ratio of 5/1/1 perlite/portland cement/water. I went through 4 cubic feet (sorry for america non metric we're idiots here) of perlite and about 1/2 a bag of cement. I did a layer of perlite cement, put a fire insulation blanket, chicken wire and another layer of perlite/cement. It is in the process of drying right now. I let the first layer dry for about a week. I will build it on a stand with wheels so I can move in the garage when not in use. Thanks for the inspiration.
@sonofagun31934 жыл бұрын
If you apply a clay liner inside the dome, you have better heat retention and a cooler shell. The clay liner will shrink when drying and a narrow cavity will occur between liner and insulating shell. After drying fire up. This will provide better Fuel economy, higher temperatures inside and better backing results. also increased longevity of the whole structure and no shell cracking. Remark: while drying the clay liner will crack a bit (this is normal due shrinkage and will not influence the integrity of the liner). Cracks can easely be repaired with clay slurry. After firing up, the clay liner is frost resistent. Alternativ for the vermaculite U can use perlite or expanded clay pellets or a mixture thereof. I made one of cheap expanded clay pellets ( the ones used in hydroponics) and cement and with a 1" clay liner and a steel door with adjustable air intake. I normally use olive fire wood which gives a delicious aroma to the pizza or sourdough bread. Cold or hot smoking of fish or meat is also possible and absolutely delicious. Regards from Spain
@zennsx4 жыл бұрын
How does one apply a clay liner?
@sonofagun31934 жыл бұрын
@@zennsx Form Several equally thick pancakes of clay and stick it to the inside of the dome. Close the seams with your fingers untill the whole inner surface of the dome is covered. Let dry the clay untill hard. Than start at small fire in the dome to drive out the remaining moisture. Thereafter make a bigger fire inside the dome to bake the clay. Repair eventual cracks with clay slurry.
@alanmccooker78294 жыл бұрын
That's a great tip thanks. And olive tree wood is a great idea too!
@tanwirkhan786114 жыл бұрын
Can u do this on one go... i mean cover the ball with clay then cover with perlite. Or do u have clay first, wait for it to dry then perlite shell. Reading your write up I guess it can be done in a single go. Also it is weather proof. I.e left in the rain?
@son-of-a-gun4 жыл бұрын
@@tanwirkhan78611 I have not tried to make the liner +shell in one go. I made the clay liner after the cement was cured and the low density concrete dome installed on it's final position. Once that was done I applied the clay liner. Doing so I could keep the weight of the dome relatively low for easy handling/lifting by one person (me). I guess technically you can make the liner + shell in one go but the total weight of the oven becomes a headache. After erection the outer surface must be sealed with lime or cement slurry to avoid rainwater entering the porous concrete dome. Regards from Bert in 🇪🇸
@MrSchnitzky5 жыл бұрын
Thanks for your inspiration. I've built an oven this way in spring this year and have used it a lot of time. A good thing was to put netting wire in the walls. What I had to change was the fundament. The sand was too hot and the bottom board begun to smoke a little bit. I used fermiculite instead of the sand and tiles as the bottom.
@random-kc8gx4 жыл бұрын
Great video! Loved the creative use of the gym ball! For the inside of the oven if you could line it with an inch of fire clay mixed with fire brick aggregate it will last you a long time and resist cracking and heat loss.
@elbishuki4 жыл бұрын
I've been watching a lot of videos lately to make my own oven and this is by far the most detailed, easy and best video so far. I'm will try this once I move to my recently bought house. thanks a lot..
@cuthberm4 жыл бұрын
Hi, thanks for the comments, appreciated
@wearedoomedunderbiden7384 жыл бұрын
I agree ...i can see myself Building that ..
@graemethom74584 жыл бұрын
Hi There. I'm in the process of building this at the moment! In hindsight are there any stages you would tweek or alter? Thanks 👍
@arabicgelato10 ай бұрын
Nice job ☺ my compliments. Few questions to ask you, as I did 3 brick ovens and You know the work load time and cost. My intention to try a cast one in a new holiday house. 1. How much internal temperature you can reach ? 2. How long after using it holds hot its internal temperature ? 3. any cracks so far? 4. Do you know the external tempreture while it's working full please ? 5 do you still advice same ratio of mixture - cement or refractory please ? Thank you so much in advance..
@RickyDove8 жыл бұрын
I've made one a bit like yours and fired it up today for the first time and I made 4 home made pizzas,, it did them in no time I was real impressed in how they work
@judichristopher46044 жыл бұрын
Ricky, did you do it exactly like he did it... or did you modify it any at all?
@mitchdunn4 жыл бұрын
How is yours holding up?
@son-of-a-gun4 жыл бұрын
Pizza's don't work bro!! You have to work making /baking the pizzas and the hardest work... To eat them all untill you burst. 👍😊 For an oven - (any oven) it's important to accumulate heat. A very low density concrete doesn't do that well. That's why it proposed the 1" clay liner which heats up independently. Clay is a very good heat accumulator. Without the clay liner your baking will will be less Regards from Bert in Spain... It's almost 40 degrees C here.. Pizza's bake exposed to sunlight... Good luck with your pizza oven project
@frankhoffman35667 жыл бұрын
I built mine 13 yrs ago, I think yours is a creative use of gym ball and materials, but I think you may need a refinement. The essence of a stone or clay oven is that the wood fire heats the surrounding rock, and the rock retains the heat, which cooks the bread (or crust).Vermicúlite, like perlite, is an insulator. This necessarily means that there will be little stored heat in the hardened mix. Your oven will heat fast, but I'm guessing it won't stay hot long. In mine I used a dense clay brick for the oven interiôr, and I put the perlite/cement mix over that. My intention was to keep the brick from sustaining heat loss from the outside. That way the heated brick retains the maximum heat and only loses heat through the oven interior. I think it might have been better to start with several inches thick of mortar, with a fire clay (refractôry)additive, and over that add several inches of your vermiculite mixture
@marvincastro42064 жыл бұрын
Im hoping you could help me
@simonedmonds33594 жыл бұрын
Firstly great video, but I have to agree with this comment re the top. Your oven will cook pizza ok, but when it comes to breads and roast, covering the ball first with a layer of something more dense like refractor cement, will make the oven more versatile. I used fire bricks, but then that is a whole lot more work.
@frankhoffman35664 жыл бұрын
@@marvincastro4206 ...If you have a question, I'll try to answer it
@juliosalgado9564 жыл бұрын
@@frankhoffman3566 Hello Frank, i'm glad you are still with us. Can i ask something? I was told that white cement would be great for the interior alongside clay brics. What do you think about this? I intend to do one somewhat yours soon, any new knowledge to share?
@frankhoffman35664 жыл бұрын
@@juliosalgado956 ... Hello. Just to clarify, I don't do concrete as a profession. I have done quite a bit of research and have had successful concrete projects. My research indicates that white portland cement is the same as the usual gray stuff. It isn't better or more heat resistant. If you are talking about coating or painting the red brick with a white portland slurry, I wouldn't. You'd risk chips of the hardened cement flaking off and finding a way into your food. I'd want the interior surface to be a good, dense red clay brick, (except for the oven floor which should be fire brick)and the mortar joints regular bag mortar, fortified with about a shovelful of fire clay per 90 lb bag. A method I didn't use to form the oven, which I would have, had I known, is using damp sand to form the interior, then laying strips of plaster of paris soaked paper over that. After it hardens, the bricks are laid against it, conforming the oven to its shape. After everything is finished and hardened up, you dig out the sand. Really, the only issue is getting the right shape to begin with.
@libbyjensen18584 жыл бұрын
NICE job! You did beautiful work!!
@reheat0078 жыл бұрын
Great job....amazing. So simple Just a comment on the outer rendering cracks. It's most likely caused by the expansion differential between the two different substrates. You said the outer render gets fairly hot so there's a heat transfer through the Vermiculite which will expand at a greater rate than the rendering thus causing cracks. A layer of aluminium foil held in place over the Vermiculite then the render applied over this would alow movement between the substrates thus reducing any likelihood of cracking. Just my tuppence worth.
@cuthberm8 жыл бұрын
Hi John, thanks for the comments and thoughts, possible the most sensible suggestion and explanation anybody has made so far. I'm thinking of making another with Perlite, so I will try and incorporate that idea.
@wlehtola6 жыл бұрын
I was scrolling to see if I was the only one who wondered how two so dissimilar materials would react and how much cracking would occur as a result.
@mmtc3115 жыл бұрын
Love that you used a 10$ yoga ball for the mold! All the places selling 500$ molds just got played!!😂🤣😂
@adirondackcarfoundry3687 жыл бұрын
Thanks for posting. Now I actually know how to construct one of these amazing little ovens. The gym ball idea is sheer brilliance.
@soobz4 жыл бұрын
Whilst the vermiculite is a good thermal insulator, it has no mass and thus will not hold any heat. The idea on a wood fired oven is the bricks get hot and radiate the heat once the fire dies down and can cook for many hours. I doubt the concrete will do the job anywhere near as well, though if just pizza is you sole aim it could be ok.
@cuthberm4 жыл бұрын
Agreed, but I always get full before I worry about the oven cooling down too much, so it works for my needs, wouldn't work for a commercial applications for the reasons you've stated. Thanks
@halitderya6 жыл бұрын
Great job. It has enough space to cooking. Also portable. I will try. Thank you..
@alanbland51987 жыл бұрын
Well done! I've just made a Tandoori oven out of terracotta pots and vermiculite. Bit of an effort sourcing a grate for the coals.... Now you've got me thinking to build something a bit like this could fit over the top of it...
@trevorcole4606 жыл бұрын
Fantastic video and workmanship 🍻
@naths12294 жыл бұрын
Nice work. I have a small doubt. The dome and the entrance are almost same height. I think the entrance should be around 60% of the dome height. Just my observation.
@426superbee42 жыл бұрын
The funny thing is? 🤣 He probably got the best pizza oven there is, just setting on his patio. A Weber kettle or a Smoker " Folks don't let the pizza oven bug bit ya." Look b4 you build or buy. Even your home oven will make excellent pizza ~ So lets watch him work his ass off on this thing 😆
@Moronicsmurf4 жыл бұрын
So great idea, easy way of improving the adherance to it use paper closest to the ball and make small "hooks" out of paper that the concrete mix can stick to. The paper will burn away at first burn, and the whole thing could be surfaced prepped from the inside once its cured out.
@elbishuki4 жыл бұрын
it would be nice to see a list of materials if it is possible
@denkdiep7 жыл бұрын
I made a pizza oven using your technique, except that i made one extra simplifying chance that saved me a lot of time and money..... Instead of cutting out a hole in a board, i dug a hole in the ground and buried half the ball into the ground. Worked absolutely perfect....
@cuthberm7 жыл бұрын
great idea
@000jimbojones0006 жыл бұрын
Mark Cuthbertson i used a big Cardbox package and put the ball in there... Then formed the Dome and after it was dry i put it on my stand where i build the rest around it...
@broesoo4 жыл бұрын
nice oven, i am also building mine. How many cm of sand have you put under the bricks? it doesn't hurt the wooden plank if I just put sand under the bricks. and how much height in cm have you put in sand?
@sylviamolyneux-carr2146 ай бұрын
Omg I'm doing this for my garden given me the inspiration 🙌. Going to get 75m ball. Wish me luck😊
@RickyDove8 жыл бұрын
What great idea you have inspired me to build one for myself ,, I've started it, just waiting for it to dry now
@mitchdunn4 жыл бұрын
How did it turn out?
@grendelum6 жыл бұрын
Wow, that vermiculite was *_expensive..._* here in the states I needed some for an experiment in mushroom (the fun kind, for educational purposes only mind you) cultivation (fresh brown rice flour and vermiculite is a perfect growing medium) and eventually found a similar 100L bag *(way* more than I needed but all that was available) at Home Depot for $5 USD. Still, a *_very_* cool use for it and a wonderful project !!!
@PVflying4 жыл бұрын
Hi, is the flue necessary? The delivita oven looks like the same shape, but without a flue, so I’m wondering if it could be omitted? Thanks for sharing your build video
@cuthberm4 жыл бұрын
I guess not, the flue should, if it's working correctly, draw the smoke out of the dome, and therefore draw fresh air in through the front, feeding the fire. In practice I'm not sure if that really happens. The only other downside is any smoke without a chimney is coming back out straight into your face as you check your pizza.
@PVflying4 жыл бұрын
Mr C TV thanks 👍 I’m gonna try one without a flue, but with a 50cm wide opening. Do you remember how many litres of vermiculite you used in your build?
@sketchingstudio55523 жыл бұрын
"Wood Fired Pizza? How will pizza get a job now?" -CallMeCarson
@milescorcoran28163 жыл бұрын
God damnit someone got here before me
@TheBushdoctor685 жыл бұрын
......and then he put it on a glass table! OMG! Great project sir. :)
@keithbrown45684 жыл бұрын
Where did you buy your chimney and cowl. Ready to start building
@linhandcalvin71093 жыл бұрын
big like. Thank you for sharing. Greetings from California
@mozarth4 жыл бұрын
The dome is too low though. You'll lose heat and burn through wood like nothing. Usually, the golden ratio between the chimney and the peak is 60-65%
@winogeneral4 жыл бұрын
so you're saying he should have built a higher dome, and a more narrow neck? And the chimney - was it in the right place?
@brotherscro4 жыл бұрын
Wow looks easy and fun to make would save a lot of money doing this Thanks
@duffgen624 жыл бұрын
At 1.08 you show the CAD being slotted against the ball but then at 9.58 you seem to have another ( not concreted ) CAD. is this a 2nd dome or was there a problem with the 1st entrance. Also, can you tell me the material used to top the oven, is it a simple render that has been coloured ? Thank you.
@cuthberm4 жыл бұрын
Hi, the template at 1.08 was the final one used, the only other one I think you might be referring to is at 8.24? This was purely to stop the render dropping off the face of the cast. The render was from victas, mixed with some red dye from wickes. Thanks
@diegroblers7 жыл бұрын
Fantastic work, thanks Mark. I'm not looking to build a Pizza oven, but I am looking to build a wood-burning fire bowl, and I would definitely use some of your methods. Two tips, if I may? Spraying the ball with cooking spray or using anything similar (including Vaseline) on the ball will keep the cling film from moving around when you're applying it - it's a cooking trick. Second, if the gym ball is expendable, as tip to skip having to build the frame for the ball you could mix polystyrene beads (bean bag filler) with PVA glue, cut a x into the ball, and half fill it with the mixture. Then duct tape the x closed and blow up like normal and leave to dry - cut the ball off and you have a form to use for the oven. Edit: A question if you don't mind - can the base be built using cement and vermiculite also instead of fire brick?
@williamrose96835 жыл бұрын
Excellent job👍
@cuthberm5 жыл бұрын
Cheers
@billwill80674 жыл бұрын
Did you have any issues with the sand not providing enough insulation for the wood? Would you have changed anything?
@cuthberm4 жыл бұрын
some heat can be felt through the sand to the ply underneath, but at the end of the day I'm not running it for long enough for it to be a problem, there's only so many pizza's you can eat, then you have to stop or you'll be sick!
@billwill80674 жыл бұрын
@@cuthberm True. I think I will have some perlite left over, I may put a layer of the mix on the bottom then the sand.....
@Muzaffer33_335 жыл бұрын
Easy and very good job and idea man.
@ScottMProductions294 жыл бұрын
Great vid. How is it holding up? Any cracks yet.
@cuthberm4 жыл бұрын
Hi, crack around the chimney, due to different expansion rates of different materials, should have made the chimney out of the same material as the dome
@awoehler5 жыл бұрын
I’ve watched a lot of these videos and there are aspects to your build that I think are next level like: full shopping list at beginning; the form table is just high enough off the ground so the ground supports the fit ball; the base build is very solid but not intimidating to those with basic wood working skills, and the firebrick base looks a lot easier to do than some of the other over-crafted ones. I’d be interested to know how this oven is holding up and if there are tweaks you would make?
@cuthberm5 жыл бұрын
Hi, thanks for the comments and feedback. It's now 3 years old, and the main casting has cracked around the metal chimney, somebody made a very good point on here about metal expanding etc. So next time I would change the sand in the base, to make that structure lighter, and therefore easier to move, secondly I will probably try making one from Perlite, and casting a chimney from the same material.
@mitchdunn4 жыл бұрын
Did you make on? If so how did it go?
@Stratoszero4 жыл бұрын
Brilliant video, nice and simple, not like others introducing brickwork etc (theres an Aussie guy does a nice one too). One question, how has yours been for cracking and overall weather proofing since? Theres a lot of vids use chickenwire, fabric insulation and all sorts as well?
@spiritwings45922 жыл бұрын
That Aussie guy that your speaking of made the very first one. Every body else followed him.
@BeeTee695 жыл бұрын
This looks perfect! im thinking of making one with a clay inner layer and then an insulating material over it. Putting it directly on fire brick would be perfect. Would these combinations pose troubles with having different expasion rates?
@daveygivens7357 жыл бұрын
Hello, nice work. -All of these ovens I've seen have the chimney towards the front; apparently out of necessity (over the flame allows too much heat out). But I would prefer it towards the back. Have you seen any with a flue that transfers the heat to a chimney in the back? Is it necessary to have this simple short chimney in place at the front?
@harveyboy457 жыл бұрын
Excercise ball good but vermiculite and cement no for inner layer. Will crack and melt and give off toxic arsenic fumes in food. Use fire brick or clay for inner layer as a radiant layer. Then vermiculite and cement for outer thermal layer.
@JoelBoudreau20097 жыл бұрын
Where did you find this information about the fumes i am working to make the same project and i want to be sure. Thank you!
@rolandchanroux12767 жыл бұрын
Joël Boudreau . Vermiculite is a type of asbestos... extremely toxic especially when heated and released into the air.
@charlesditrani50497 жыл бұрын
Joël Boudreau m
@denmsore7 жыл бұрын
Although not all vermiculite contains asbestos, some products were made with vermiculite that contained asbestos until the early 1990s. Vermiculite mines throughout the world are now regularly tested for it and are supposed to sell products that contain no asbestos. The former vermiculite mine in Libby, Montana, did have tremolite asbestos as well as winchite and richterite (both fibrous amphiboles) - in fact, it was formed underground through essentially the same geologic processes as the contaminants. Pure vermiculite does not contain asbestos and is non-toxic. Impure vermiculite may contain, apart from asbestos, also minor diopside or remnants of the precursor minerals biotite or phlogopite
@jasonmcdermott72517 жыл бұрын
so does it give toxic flume s when heated ?
@Robswoodworkingdiy4 жыл бұрын
Great video. Have to ask how much did it cost to build. Assume you'd in the UK.
@cuthberm4 жыл бұрын
Hi, yes in the UK, biggest cost would have been the firebricks, but I was given those by a friend, other materials probably came to £350 I’d guess, you can see most of the pricing at the start of the video, plus the render and the wood mounts up in price before you know where you are!
@jesteronetime5 жыл бұрын
Great job
@cuthberm5 жыл бұрын
Thanks
@craiglaughlin67947 жыл бұрын
Mark, Could you please tell me the outside dimensions of the finished oven? I'm trying to figure out how deep the outdoor counter top it will sit on needs to be. Thanks!
@TheRudei924 жыл бұрын
Fair play mate. Top job and you made it look actually doable even to me👍🏼
@billwill80674 жыл бұрын
I am using perlite and refractory cement as the material, with chicken wire between 2 layers. I also am adding stainless still pins into the mix. Finally I am covering the inside with a final coat of refractory cement and the outside with perlite, refractory cement, and color. Do you think that should prevent it from cracking?
@cuthberm4 жыл бұрын
Sounds a very robust mix your going with, time will tell, but that’s got to be a great start
@billwill80674 жыл бұрын
@@cuthberm This is incredibly frustrating. I am using perlite and refractory cement 5:1 mix. I cannot get the render to go up the side without falling back down. What I did get done seems to crumble. I covered it with a damp sheet so it would not dry too quickly, but even overnight it still does not harden, the render crumbles. What am I doing wrong?
@mitchdunn4 жыл бұрын
@@billwill8067 Did you figure anything out Bill?
@nicksnicknet7 жыл бұрын
Awesome video, and thanks for replying to all the comments because it really helps others out there. I've ordered an 85cm ball - do you think the dome would be too big, and would I need much more Vermiculite than a 100L bag? Did you have much left over?
@cuthberm7 жыл бұрын
Thanks, I had a little over, maybe a quarter, I'd go for 2 bags, as you will want additional thickness over mine for strength, as thats a mighty ball your covering
@mitchdunn4 жыл бұрын
Did you make one?
@davidhallows23894 жыл бұрын
Hiya, very nice job and video. Could you please tell me what type of cement you used for the fire brick base?
@cuthberm4 жыл бұрын
Hi, firebricks were just laid loose on a pure sand base.
@davidhallows23894 жыл бұрын
@@cuthberm Thanks.
@davidhallows23894 жыл бұрын
Could you say how long the whole drying time took, after the 5 days? My mix is still really crumbly after 3 days, I'm panicking it's not going to cure properly!
@sultanasultan96055 жыл бұрын
You are very geniuse, I have a question please,can i use the gym ball as a mold but I will be using the bricks building it intstead of the mixture of cement you did?
@hypota68724 жыл бұрын
I saw a similar video about using cement and vermiculite and after some usage he got many cracks in the dome, what about you?
@cuthberm4 жыл бұрын
The main crack was caused by the different expansion rates of the flue and the dome, no other cracks, i suspect the heat proof render does a very good job of holding it all together.
@richgiles-grant44568 жыл бұрын
Your oven is amazing am just about to order the materials to construct mine. Where did you get the fire bricks from and also how thick is the vermiculite dome?
@cuthberm8 жыл бұрын
+Rich Giles-Grant Hi, thanks, I was very fortunate in having a friend who sourced the fire bricks for me, they are available on line, www.victas.com, but the postage is the issue due to the weight, better to source them locally if you can. The dome is approx 5cm thick, much more between the dome and tunnel section and around the flue, as I thought this might be a weak point when lifting and moving etc.
@samthesung7 жыл бұрын
Hi Mark, thanks for your video. I'm so inspired to give this a go! What sizes did you cut the plywood up originally? Was it 3 equal sizes? Also were your firebricks 230mm x 114mm x 25mm?
@mitchdunn4 жыл бұрын
Did you make one?
@bomaite17 жыл бұрын
I think most traditional ovens have a recess in the back of the oven for the ash and unburned wood. You need to use twigs that you have tied into a bundle, because they burn quickly and very hot. When it has mostly burned, shove everything into the recess, which should be lower than the floor of the oven. That way there will be pretty even heat radiating from the walls and floor, and you won't burn your food from the embers, which are much hotter. Also, make a door. It can be just a tile or sheet metal, but you need to stop the heat loss from outside. You wouldn't cook your turkey with the oven door open, would you?
@helshabini8 жыл бұрын
This is an awesome idea, after watching a lot of wood burning overs DIY, this is by far the simplest one. However I have some comments/questions that I'd love to share: 1- Wouldn't be cleaner to line the interior of the oven with slim fire bricks? I feel that the Vermiculite mix would have a lot of pores where ashes and dust can hide and would be very difficult to clean. 2- Why didn't you use more insulation with the sand? doesn't the bottom of the oven get hot? 3- Same thing regarding the fire bricks on the bottom, probably the heat will transfer onto the outer bricks and someone would get hurt touching very hot bricks that are outside the oven. 4- The opening for the over seems a little large, is there any scientific ratio that one should follow, or did you just go with intuition? 5- How much do you think this whole thing weights? I want to build one and put it in my balcony but I am worried about the weight. Thanks so much for the video, appreciate the effort.
@cuthberm8 жыл бұрын
Hi, thanks for the comments. 1) I guess it would be cleaner, I sweep out the oven then use a small battery powered blower to force out the last of the ash and dust. 2) Yes the bottom of the oven get's hot, and you can feel the heat through the ply of the base, but it's not been an issue so far. 3) Not noticed the outer bricks getting hot, good point, need to check that, they will of course cool quicker being exposed to the air. 4) The opening is sized to take a standard pizza peel in width, that was my logic. 5) I can only just pick up one corner of it all assembled with the oven on top of the frame work, it weights hell of a lot, most of that weight is the sand and firebricks
@helshabini8 жыл бұрын
+Mark Cuthbertson Thanks for the info. Much appreciated 😊
@superspark56777 жыл бұрын
That’s quite Different but that design would be highly likely to crack and have leaks over a few uses. But it’s still good as a back yard job.
@hogg88884 жыл бұрын
so do the fire bricks just sit on sand ? very nice by the way !
@cuthberm4 жыл бұрын
Thanks, yes the bricks just rest in the sand, and I then tighten up the sides of the frame to take up any slack.
@hogg88884 жыл бұрын
Thanks a lot . I think a lot of people have used your video as a guide. Nice one !
@duffgen624 жыл бұрын
I had a go at this but it cracked into loads of pieces when I removed the door. I think a) my mix wasn't wet enough and b) I didn't cure it correctly. I am going to have another go. Another video shows a different ratio....3:1 vermiculite and refractory cement. So I'll try this mix and hope for better results. It was incredibly light. Anyway, great video, shame I messed it up.
@cuthberm4 жыл бұрын
Oh no, gutted for you, but good to see your trying again
@jesuschrist-alphaomega4 жыл бұрын
Just take it as an education. Sure the next one will be great.
@zenom25144 жыл бұрын
Great Pizza Oven. Well done Mr C ! The best out there. Just a couple of questions...Can you paint the heatproof screed when its dry with an exterior masonry paint and is the whole thing weatherproof or do you need a roof over it outside Many thanks for the vid.
@Kamienios7 жыл бұрын
Hello from Poland. I plan to make one with this technique. i wonder what is sand for? Thanks in advance
@door88627 жыл бұрын
This looks awesome, really want to give it a go. I'm reading a lot of stuff about Vermiculite and asbestos? I know nothing about building materials so I might just be being ignorant but was wondering if it was safe to use for cooking food. Any replies would be great! Thanks
@cuthberm7 жыл бұрын
I've not come across that myself, I can't see that it would be so readly available (especially for horticulture) if there were issues with asbestos, but I'll now check as you've raised it. you could use perlite??
@nicholasnia89157 жыл бұрын
I heard if you use vermiculite and your oven gets wet, it can explode. Instead it is better to use perlite.. Great video though, how it holding up? Any cracks over time?
@chasebunger18118 жыл бұрын
I was thinking about doing something very similar to this, although I was going to use a homebrew refractory concrete mix that I found on fornobravo....any ideas how much this would weigh approximately? I love the idea of building a stand out of wood rather than having to use concrete blocks and pouring a special foundation just for this.
@ljwarham61988 жыл бұрын
Great build. Question, if I was to use refractory cement would I still need to mix in vermiculite?
@cuthberm7 жыл бұрын
Yes as your structure would be far too heavy without I suspect
@XFBO4 жыл бұрын
Greetings! Loved the build and has me wondering if I should give it a try! May I ask how it's holding up almost 4 yrs later?
@cuthberm4 жыл бұрын
Hi, thanks, it has cracked around the flue, somebody in the comments section pointed out this might happen as the different materials would expand at different rates, which does appear to have resulted in the crack. Next time I’ll make it with a flue made of the same material as the main dome.
@mitchdunn4 жыл бұрын
@@cuthberm Is the crack bad enough to make it unuseable?
@cuthberm4 жыл бұрын
Mitch Dunn hi, isn’t big enough to affect it, just cosmetic really.
@peterfoster1754 жыл бұрын
Hi Mr C great Video! I have built mine and its Currently Drying cant wait to fire it up! How did you fire yours for the first time did you start with a small fire a couple of times? Then get bigger and hotter from there to avoid cracking? also how long did the last seal to the fire bricks take to dry? Cheers Pete!
@cuthberm4 жыл бұрын
Hi, yes, started with a small paper and kindling fire, then returned another day with another kindling fire, before moving onto kiln dried timber.
@peterfoster1754 жыл бұрын
@@cuthberm Fab thanks again!! hope you are safe and still enjoying pizza in lock down!
@cheakyboy867 жыл бұрын
Really great work, I like the video very much and I want to rebuild this oven. Is the Oven Outdoor and get wet from the rain or do you have a roof for the oven?
@ferdinandofucci39754 жыл бұрын
What kind of sand you put under the bricks for the base? What is it the recipe
@cuthberm4 жыл бұрын
Sorry for a dull answer, but it was just builder sand, nothing special
@mormorMaya7 жыл бұрын
Hi, Thank you for an excellent film . You've got me to try and make my own oven. I'm thinking of putting the more heat resisting concrete (cement) on the top of the oven dome. Or mix it in with the ordinary concrete. What do you think about that? This would be the swedish version ;-) I've also bought a 75cm jym ball, So I will get a little more room for firering... Good or bad? One more thing, My vermiculite is in smaller bits than yours... does that make much differens? Good or bad?
@simoncrombe77436 жыл бұрын
I had the same issues did it work out wel for you?
@gurkankaracan84184 жыл бұрын
Hello mate great job, well done I will be following your instructions and make one soon. Where did you get all the materials? How big is the oven inside? It looks lovely mate I will try to make a combo BBQ next to the oven thank you for the upload.
@cuthberm4 жыл бұрын
Thanks for the feedback, most parts were from eBay, Wood and cement from local DIY store, heat proof render was an online specialist store. Firebricks were sourced by a friend and would have been the hardest thing to get delivered due to their weight
@JoseLopez-lk1vv4 жыл бұрын
Good job man. Might do the same. How high can the temperature get in your oven?
@jdt88265 жыл бұрын
Great oven. Can you tell me what the outside temperature of the oven is? Thank you
@jpmatarazzo52494 жыл бұрын
Umm question, I noticed all the other videos are using Perlite, NOT Vermiculite, which makes sense to me because Perlite is used to aerate soil, and vermiculite is used as a moisture retainer. So shouldn't it stand to reason that vermiculite will hold too much water and explode if you heat it up?
@cuthberm4 жыл бұрын
Hi, valid point, I was very careful to slowly dry out the dome, placing wet towels over it, I think I left it drying out slowly for about 4 days, I then only lit a small paper and kindling fire, before building up the heat on a separate burn later on. I chose vermiculite at the time as it was all I could find. I would try perlite next time for sure. Thanks
@duffgen624 жыл бұрын
How long did you leave it before removing the gym ball. I made my 2nd attempt 6 days ago and I would like to move it to it's final position. My dome is about twice as thick as yours so I'll need help.
@bernarddeham47874 жыл бұрын
Thank you for sharing! What is best perlite or vermiculite?
@scottmcglynn57167 жыл бұрын
Hi, great vid, sorry if this has been asked already but what do reckon the overall wall thickness is, concrete and render included? I'm in the process of making mine (85cm - gulp!) and I'm planning to put an insulating blanket layer between concrete and render.
@cuthberm7 жыл бұрын
I'd say around 40mm for the vermiculite/cement mix, but much thicker round the neck and chimney area, for strength, and the render was 25mm? I'd go thicker if I was doing it again on the vermiculite/cement and maybe miss out the render, as it was very expensive.
@scottmcglynn57167 жыл бұрын
Many thanks - I've just added another layer to mine as there was no way it was 40mm. Just waiting for it to cure now.... Wish me luck!
@scottmcglynn57167 жыл бұрын
Well, it's done. And it's stayed up so far! Thanks for the video, great information and inspiration.
@NathanNostaw5 жыл бұрын
I love the gym ball idea. I have an issue with the material used though. As far as I know, you should have a high thermal mass for the oven and an insulator for the outer shell. The efficiency of the oven is based on the ability of the thermal mass to absorb and hold the fire's heat and then cook the food. A good (non-commercial) pizza oven should be able to do a cook session without the fire once heated. Vermiculite is an insulator and I would think better used in the outer shell.
@cuthberm5 жыл бұрын
AKA Nathan Thanks and yes I agree with all your comments reference materials and their suitability.
@MrHuggebugge4 жыл бұрын
@@cuthberm Hey both Mr C TV and AKA Nathan. I thought about this a lot and guess that's why the real ovens have bricks. But what about a clay material on the inside? How thick and how do you apply the insulating mixture on top of the clay to avoid cracks as they are two different materials. First layer of clay, then tinfoil so it can move then the insulating mixture with either perlite or vermiculite. Any ideas? Suggestions to make this work?
@MrHuggebugge4 жыл бұрын
Mr C TV amazing construction and lovely film. Thank you!
@darrenelkins59237 жыл бұрын
Hi. Nice build and a great video. Thanks What eBay store did you source your items from? Is the ply cut into 3 x 1200x 800? Cheers
@larrikinaxe34245 жыл бұрын
I ordered a pizza and had it delivered while watching this.
@guymace97967 жыл бұрын
Hi quick question was there a reason you used the victus screed instead of the victus render? Interested to know cheers.. Guy
@billwill80674 жыл бұрын
Im going to try this, how did you know the size of the inner circle to cut out? I may use perlite instead of vermiculite. Is there anything else you would have changed after using your oven for a while now?
@cuthberm4 жыл бұрын
I think I just made it 1 inch smaller in diameter than the ball, you can play with the pressure in the ball to make sure it’s a tight fit
@paulsheppard91714 жыл бұрын
4 years on, is the oven still ok , no cracks?
@jjgrice0188 жыл бұрын
Your oven looks good Mark and a nice clear video.Any cracks and what is this Victus heat proof screed like to use ? Also I found a cheap pizza stone is handy and keeps the floor clean .
@cuthberm8 жыл бұрын
+JJGrice018 Thanks, small crack yes after getting it too hot, The screed went on really well, but was very expensive relative to the cost of materials for the actual oven
@D2302616 жыл бұрын
@@cuthberm cracking build Mark...I used a similar method. I used the gym ball to make a fibre glass mould of the oven so I could then put the mix over that, as it did not flex it was definitely easier. I also used perlite instead of vermiculite purely as it was easier to find. Main difference is I used ciment fondu which is a refractory cement mix. A lot more expensive than portland at £35 a bag but good for 1400 degrees Celsius. Didn't make a build video but have put some pictures in to a slide show on my KZbin chanel.
@brettmattinson7262 Жыл бұрын
Hey how did the oven hold up over the past 6 years
@tais0064 жыл бұрын
Great respect. Skillful fingers. Dude is just fine
@clark17forever17 жыл бұрын
hi Mark quick question i just went to my local garden store for vermiculite but it seems as if it is small pieces of styrofoam. if wasnt rock like. that is my question i guess what im asking is it a crushed rock?
@jackiegibson44397 жыл бұрын
fail to plan fail to succeed , oh god blimey mate i have probably read more info on these little beauties than i could care to think. have just finished the oven to your design with the exception of flue, used old drain clay, and used perlite based on 5 to 1 ratio and it looks dam good. covered it in damp sheets for now and hope by 5/6 days time i will be able to remove from formwork, fingers crossed. so here is the big question , after checking the directions of the fire cement you used on the outside i see that it says its fire proof to 1300c with a recommended thickness of no more than 6mm and that it will cure using a vast amount of heat, i know your reasons for using it externally but in retrospect do you think that using it an the base layer first would be more advantageous, so my plan now is to order some and screed the inside of the oven when dry, any thoughts. cheers mate.
@falaffelfest6 жыл бұрын
Jackie, I plan to do a 5 to 1 perlite cement mix on my 75 cm ball now. Any tip about wall thickness? Ok to do 6-8 cm mix, then chicken wire, then 2 cm mix? Any problem due to little heat retention? Tried to make bread? I’ll have 65 mm thick fire brick in the base. Thanks, Hans
@Tandoolie26 жыл бұрын
Hi nice pizza oven . Did you use a coarse vermiculite for the mix ?
@carmenzapulido92067 жыл бұрын
Hi Mark we would like to know if we could use vermiculito 0-2 mm for building this oven. Here in Colombia is the one we can get.
@mahermurad11687 жыл бұрын
dear mark i really admire your ideas and work.ill try to this at my hone in summer i have a question for you... i live in sweden and the weather in summer is pretty rainy . dos that effects the oven in a negative way ? id really like to hear from you best of luck murad
@cuthberm7 жыл бұрын
Hi, weather in the UK is very rainy, I keep it covered all the time it isn't in use with a garden furniture cover. thanks
@thenar5 жыл бұрын
Nice plan. Well executed.
@leverwilliam7 жыл бұрын
I'm thinking of maybe setting a cement and vermiculite mix in a timber mould for the base rather than fire bricks. I'm guessing that would work with some support underneath to prevent breakage? could then smooth down the surface. Perhaps instead of putting sand and cement on the ply just pour in the vermiculite/cement mix, is this too heavy?
@cuthberm7 жыл бұрын
Hi, I'm sure I've seen a video on youtube of someone making either a vermiculite or perlite base, it's shouldn't be too heavy, I've had criticism on here for my sand base, not being up to the job of stopping heat getting through to the wooden frame, but as yet it's not burst into flames!
@leverwilliam7 жыл бұрын
Mark Cuthbertson thanks for your reply. I might give it a go, if it fails I've only spent a few quid making a slab! I'm attempting my version over the next couple of weeks
@ambkbero24 жыл бұрын
I've watched a lot of videos on how to build pizza ovens. Your's, by far is the easiest I've seen. Now that you've had it a while, do you have any additional tips, tricks or ideas? Thank you and great video.
@cuthberm4 жыл бұрын
thanks, there's a lot of video that have jumped on the idea since mine, but good to hear mines still clear. I'd make the chimney out of the same material as the dome next time, and I'll be trying perlite. I would also like to have the base lighter so it's easier to move round, the sand and firebricks are a really heavy combination.
@tommygunhodgson4 жыл бұрын
@@cuthberm Hi mate, I'm looking to do this. Is there any reason you wouldn't go for the SS chimney? Also did you find 100l of vermikulite was plenty? Cheers
@cuthberm4 жыл бұрын
Tom Hodgson Hi, I used about 3/4 of a 100 litre bag, so you should be fine. It was pointed out to me by somebody in the comments that the flue would expand at a different rate to the dome, as they are different materials and expand at different rates, this could cause cracks. It was a really good point and if I did it again I’d try and make the chimney from the same material. Thanks
@tommygunhodgson4 жыл бұрын
Mr C TV awesome. Thanks 👍🏻👌🏻
@Mike-sh5nh4 жыл бұрын
@@cuthberm good point about the chimney material being different i have made the dome without putting in a the stainless chimney yet.. I was going to cement in now im thinking ill use a fire caulk to set it in place, which should expand / contract
@jjgrice0187 жыл бұрын
How is the vermiculite concrete holding up Mark and did the metal flue expand more than the vermiculite when heated and crack around it ?
@jamesoates63094 жыл бұрын
How long did the oven take to dry before you could use it? Also did you have to leave it covered with wet cloth to prevent cracking? Cheers
@MisterJo308 жыл бұрын
Bonjour, tout d'abord je vous remercier pour le partage et félicitations pour cette réalisation . J'ai une question à vous poser : Il faut utiliser du ciment normal ou du ciment refractaire . Pensez-vous que cela est possible avec une boule 90cm / 35 " Merci d'avance Google translate : Hello , first of all I thank you for sharing and congratulations for this achievement. I have a question to ask you : You must use the normal cement or refractory cement. Do you think this is possible with a ball 90cm / 35 " thank you in advance
@cuthberm8 жыл бұрын
Thank you for you nice comments, I used normal Cement. You could make it bigger, but you would have to consider how thick it would need to be, in order to be able to lift it off the mould and not break. Also the bigger the size the heavier it will be.
@bmoxendale7 жыл бұрын
Love the video! I think I am going to follow this exactly! 2 QQs. How thick is the exterior wall and how long did you let it cure until you used it?
@cuthberm7 жыл бұрын
I'd say the wall thickness was roughly 5cm, thicker at the front around the chimney and opening (for strength) I let it cure over a week, using wet towels on the surface, so that it dried as slowly as possible.
@MM-jx9si8 жыл бұрын
Thanks for the video. Quick question: What would be the very best materials one could use to make this structure?
@billwill80674 жыл бұрын
Im patterning my table like yours. My oven came out to what I think is 200 pounds!... With all the brick on the table top it will be 400 or 500 pounds. Do you think your table design will support that weight?
@cuthberm4 жыл бұрын
sounds heavy for the oven, I could easily pick up the oven myself on my build, it felt relatively light, the weight for me was in the bricks and sand.