Page 1 of 2 1 2 LastLast
Results 1 to 20 of 40

Thread: Pizza oven

  1. #1
    Join Date
    Feb 2010
    Location
    Centurion + Others
    Age
    65
    Posts
    3,163
    Thanked: 437

    Default Pizza oven

    Hello all,
    Ive just given my oven 150mm insulation layer.
    50mm ceramic blanket and about 100mm perlite/cement layer.

    The fire bricks on the floor have small gaps between and are not 'perfectly' smooth.

    what can one do to fill the gaps successfully that will take the heat?

    thanks

    cc
    Merit before Race - anything else IS Racism.
    Stay Calm, engage low-ratio, keep buggering on - a Landy Man
    Longevity isn't worth dying for,

  2. #2
    Join Date
    May 2009
    Location
    Hillcrest
    Age
    67
    Posts
    24,579
    Thanked: 20782

    Default Re: Pizza oven

    Quote Originally Posted by Capt Chaos View Post
    Hello all,
    Ive just given my oven 150mm insulation layer.
    50mm ceramic blanket and about 100mm perlite/cement layer.

    The fire bricks on the floor have small gaps between and are not 'perfectly' smooth.

    what can one do to fill the gaps successfully that will take the heat?

    thanks

    cc

    Nice - What about a bed of steel.

    Please tell me about the perlite/cement mix. I am making a Hibachi braai and doing the same mix. Which cement did you use. I see some people use some "white" cement.
    Cheers

    NAGOF

    HAM Callsign - ZS5KAD

    Freedom of speech is useless unless you allow people you don’t like to say things you don’t like………

    If you fly or drive to an anti-Fracking meeting, you have no business being there and you wont get my ear......

  3. #3
    Join Date
    Aug 2012
    Location
    Malagas
    Age
    63
    Posts
    36
    Thanked: 148

    Default Re: Pizza oven

    Capt some phodies please. Also about to do a pizza oven. Bought the shell and once in place I need to do the insulating layer.
    What ratio did you do your mix.

  4. #4
    Join Date
    Jun 2010
    Location
    Nelspruit
    Posts
    2,065
    Thanked: 1938

    Default Re: Pizza oven

    Quote Originally Posted by Capt Chaos View Post
    Hello all,
    Ive just given my oven 150mm insulation layer.
    50mm ceramic blanket and about 100mm perlite/cement layer.

    The fire bricks on the floor have small gaps between and are not 'perfectly' smooth.

    what can one do to fill the gaps successfully that will take the heat?

    thanks

    cc
    The floor smoothness is very important to be able to slide over it. I opted for 6mm tiles as opposed to firebricks. Ceramic tiles are cured at a higher temperature than you can get in your oven. Se pic ......
    I have al;so been looking at Perlite and Cement. I think the 46,5 is ok. I also think a final layer of clay a nd cement improves insulation.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Floor of oven.jpg 
Views:	523 
Size:	304.4 KB 
ID:	630063  
    Regards

    MikevR



  5. The Following User Says Thank You to MikevR For This Useful Post:


  6. #5
    Join Date
    Jun 2010
    Location
    Nelspruit
    Posts
    2,065
    Thanked: 1938

    Default Re: Pizza oven

    Quote Originally Posted by MikevR View Post
    The floor smoothness is very important to be able to slide over it. I opted for 6mm tiles as opposed to firebricks. Ceramic tiles are cured at a higher temperature than you can get in your oven. Se pic ......
    I have also been looking at Perlite and Cement. I think the 46,5 is ok. I also think a final layer of clay a nd cement improves insulation.

    Re orientated picture will be corrected.
    Last edited by MikevR; 2021/09/16 at 10:27 AM.
    Regards

    MikevR



  7. #6
    Join Date
    Jun 2010
    Location
    Nelspruit
    Posts
    2,065
    Thanked: 1938

    Default Re: Pizza oven

    Re orientated picture correction - Ceramic floor
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Floor of oven.jpg 
Views:	505 
Size:	307.5 KB 
ID:	630065  
    Regards

    MikevR



  8. The Following 3 Users Say Thank You to MikevR For This Useful Post:


  9. #7
    Join Date
    Mar 2008
    Location
    De Wildt
    Age
    61
    Posts
    42,667
    Thanked: 20097

    Default Re: Pizza oven

    @ MikevR: tell us about the galvanised steel?

  10. #8
    Join Date
    Jun 2010
    Location
    Nelspruit
    Posts
    2,065
    Thanked: 1938

    Default Re: Pizza oven

    Quote Originally Posted by jelo View Post
    @ MikevR: tell us about the galvanised steel?
    I was experimenting with reflective surfaces and a retain of the floor concrete ring before the insulation, You will notice there is a air input pipe as well this has a valve on the outside - the unit I built is multi purpose and a hobby experiment. It functions as a Roaster - rotisseries (with Weber Rotiserie ring) and / or smoker and if I place a plough disc type wok skottle braai upside down it becomes a pizza oven. The skottle is place about 2/3rd down the drum see picture of deflector plate position. I also keep the Skottle braai separate for fry ups and breakfasts. I have added the overall picture again of the whole unit. My next project is to change my fire pit design for my flame braai. I will do a separate thread on that.

    Enjoy
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Deflector Plate above fire box.jpg 
Views:	141 
Size:	387.2 KB 
ID:	630067   Click image for larger version. 

Name:	Skottle Braai.jpg 
Views:	132 
Size:	497.4 KB 
ID:	630068   Click image for larger version. 

Name:	Smoker - Roast with Webber Rotisserie ring fitted.jpg 
Views:	136 
Size:	467.1 KB 
ID:	630069  
    Regards

    MikevR



  11. The Following User Says Thank You to MikevR For This Useful Post:


  12. #9
    Join Date
    Mar 2008
    Location
    De Wildt
    Age
    61
    Posts
    42,667
    Thanked: 20097

    Default Re: Pizza oven

    Quote Originally Posted by MikevR View Post
    I was experimenting with reflective surfaces and a retain of the floor concrete ring before the insulation, You will notice there is a air input pipe as well this has a valve on the outside - the unit I built is multi purpose and a hobby experiment. It functions as a Roaster - rotisseries (with Weber Rotiserie ring) and / or smoker and if I place a plough disc type wok skottle braai upside down it becomes a pizza oven. The skottle is place about 2/3rd down the drum see picture of deflector plate position. I also keep the Skottle braai separate for fry ups and breakfasts. I have added the overall picture again of the whole unit. My next project is to change my fire pit design for my flame braai. I will do a separate thread on that.

    Enjoy
    Aha thanks, I recall that system now.

  13. #10
    Join Date
    Feb 2010
    Location
    Centurion + Others
    Age
    65
    Posts
    3,163
    Thanked: 437

    Default Re: Pizza oven

    I got the perlite from the Pratley factory , west of JHB.
    i bag perlite 1 bag cement.
    I just used the Builders stuff. - to be honest didnt think of different as wife is arty and gonna clad it in mosaic/bits of tiles.

    I made the mistake of buying a Hamilton oven [ charges like a raging buffalo] as they're only 45mm thick.
    consequently doesn't retain the heat.
    I've now done it correctly and after a hot 1 hour fire, there is not a bit of felt heat outside,
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	pizza1.jpg 
Views:	115 
Size:	68.3 KB 
ID:	630077   Click image for larger version. 

Name:	pizza2.jpg 
Views:	130 
Size:	80.6 KB 
ID:	630078  
    Last edited by Capt Chaos; 2021/09/16 at 11:39 AM.
    Merit before Race - anything else IS Racism.
    Stay Calm, engage low-ratio, keep buggering on - a Landy Man
    Longevity isn't worth dying for,

  14. The Following 4 Users Say Thank You to Capt Chaos For This Useful Post:


  15. #11
    Join Date
    May 2009
    Location
    Hillcrest
    Age
    67
    Posts
    24,579
    Thanked: 20782

    Default Re: Pizza oven

    Quote Originally Posted by Capt Chaos View Post
    I got the perlite from the Pratley factory , west of JHB.
    i bag perlite 1 bag cement.
    I just used the Builders stuff. - to be honest didnt think of different as wife is arty and gonna clad it in mosaic/bits of tiles.

    I made the mistake of buying a Hamilton oven [ charges like a raging buffalo] as they're only 45mm thick.
    consequently doesn't retain the heat.
    I've now done it correctly and after a hot 1 hour fire, there is not a bit of felt heat outside,
    Ah so normal cement. Thanks.
    Cheers

    NAGOF

    HAM Callsign - ZS5KAD

    Freedom of speech is useless unless you allow people you don’t like to say things you don’t like………

    If you fly or drive to an anti-Fracking meeting, you have no business being there and you wont get my ear......

  16. #12
    Join Date
    Mar 2008
    Location
    De Wildt
    Age
    61
    Posts
    42,667
    Thanked: 20097

    Default Re: Pizza oven

    You can also mix 50/50 vermiculite and portland 32.5 MPA.

  17. #13
    Join Date
    May 2009
    Location
    Hillcrest
    Age
    67
    Posts
    24,579
    Thanked: 20782

    Default Re: Pizza oven

    Quote Originally Posted by jelo View Post
    You can also mix 50/50 vermiculite and portland 32.5 MPA.
    Thanks, it seems that the choice between vermiculite and perlite hinges on the finish. I am looking for something that is aseptically pleasing as it will sit on a dining table.

    So for a table top hibatchi it looks like perlite and some form of white cement. White cement being the ...gar in the wood pile. I have seen refereance to using Plaster of Paris, and other products like Polyfilla and other gysum type fillers.
    Cheers

    NAGOF

    HAM Callsign - ZS5KAD

    Freedom of speech is useless unless you allow people you don’t like to say things you don’t like………

    If you fly or drive to an anti-Fracking meeting, you have no business being there and you wont get my ear......

  18. #14
    Join Date
    Mar 2008
    Location
    De Wildt
    Age
    61
    Posts
    42,667
    Thanked: 20097

    Default Re: Pizza oven

    Quote Originally Posted by Fluffy View Post
    Thanks, it seems that the choice between vermiculite and perlite hinges on the finish. I am looking for something that is aseptically pleasing as it will sit on a dining table.

    So for a table top hibatchi it looks like perlite and some form of white cement. White cement being the ...gar in the wood pile. I have seen refereance to using Plaster of Paris, and other products like Polyfilla and other gysum type fillers.
    Yes, I've seen plaster of paris mentioned as well. I don't think that even needs perlite?

  19. #15
    Join Date
    Jun 2010
    Location
    Nelspruit
    Posts
    2,065
    Thanked: 1938

    Default Re: Pizza oven

    One can also mix White Wash powder into your cement and perlite if you are worried about colour. It also smoots off very nicely. Also one can use tile adhesive but a bit expensive.
    Regards

    MikevR



  20. The Following User Says Thank You to MikevR For This Useful Post:


  21. #16
    Join Date
    Feb 2010
    Location
    Centurion + Others
    Age
    65
    Posts
    3,163
    Thanked: 437

    Default Re: Pizza oven

    Fluffy,

    The perlite and cement mix is much whiter than i expected.
    I thought it would be cement-grey, but it is much whiter
    Merit before Race - anything else IS Racism.
    Stay Calm, engage low-ratio, keep buggering on - a Landy Man
    Longevity isn't worth dying for,

  22. The Following 2 Users Say Thank You to Capt Chaos For This Useful Post:


  23. #17
    Join Date
    May 2009
    Location
    Ruimsig
    Age
    60
    Posts
    8,793
    Thanked: 45321

    Default Re: Pizza oven

    Quote Originally Posted by jelo View Post
    @ MikevR: tell us about the galvanised steel?
    Mike, please tell me you degalvanised the steel or at the very least, it wont be used in the chamber where food will be
    Estee = S T = Sean Towlson, A Schrodingers Douche Bag GOF

    ''In Western society, it is not the facts or the truth that are important, but the correct presentation of information, even if it is a lie.''

    Clank, a 1979 Ex-SADF Series III 109 SW powered by a Toyota 2B Oil Burner

  24. #18
    Join Date
    Aug 2017
    Location
    Durban or Centurion
    Posts
    1,685
    Thanked: 1900

    Default Re: Pizza oven

    Pratliperl...

  25. The Following User Says Thank You to SAND For This Useful Post:


  26. #19
    Join Date
    May 2018
    Location
    Pearly Beach near Gansbaai
    Age
    66
    Posts
    176
    Thanked: 361

    Default Re: Pizza oven

    Do perlite pizza ovens work?



    This method of pizza oven insulation has been used for thousands of years, so it is tried and true; Both vermiculite and perlite will withstand high temperatures, insulate well, and expand with heat so it doesn't crack easily.

    https://www.fornobravo.com/pizza-oven-insulation/










  27. #20
    Join Date
    Jun 2010
    Location
    Nelspruit
    Posts
    2,065
    Thanked: 1938

    Default Re: Pizza oven

    Quote Originally Posted by Estee View Post
    Mike, please tell me you degalvanised the steel or at the very least, it wont be used in the chamber where food will be

    Hi Sean
    Thank you for the query, It appears I am going to have to paint the inner surfaces of the drum with 1 part hydrochloric acid to 3 parts water. Remove all traces of Galvanised surfaces. Thereafter complete wash down and apply a coat of cooking oil. then refire without food. I will ensure there are no zinc related surfaces in the chamber at all. I hope this is a learning for others as well. Zinc is poisonous and is released from galvanized surfaces when heated.
    Regards

    MikevR



  28. The Following 3 Users Say Thank You to MikevR For This Useful Post:


Page 1 of 2 1 2 LastLast

Bookmarks

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may post attachments
  • You may edit your posts
  •