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Post by pizzapaul on May 18, 2018 19:17:33 GMT
Have I got to use bricks on the base of my oven?
Can I use a vermiculite cement? With fire clay? For the actual direct base, rather than bricks?
I think it would give an neater easier surface for the wood/ashes?
Any advice on that?
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Post by downunderdave on May 18, 2018 19:52:02 GMT
Have I got to use bricks on the base of my oven? Can I use a vermiculite cement? With fire clay? For the actual direct base, rather than bricks? I think it would give an neater easier surface for the wood/ashes? Any advice on that? No, that won’t work. Portland cement will not withstand the kind of temperatures the floor will see and the vermiculite makes the mixture weaker which means it won’t stand up to abrasion. Also you want dense thermal mass in the floor to hold the heat, the vermiculite makes it insulating. Use firebrick laid loose so they can be replaced if needed. |
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Post by pizzapaul on May 18, 2018 20:53:23 GMT
That all makes sense.Thanks
Firebrick it is
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Post by pizzapaul on May 21, 2018 18:49:09 GMT
Can I revisit the firebrick solution?
Do I have to use firebricks for the floor of the oven?
Can I use old reclaimed bricks?
They are fired at temperatures above my pizza oven aren't they?
If I do used reclaimed bricks how do people lay them? I don't want to cement them in, so on a bed of sand to ensure they are level?
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Post by oblertone on May 22, 2018 7:44:16 GMT
The most common option for firebrick is reclaimed heater blocks from night storage heaters, these have excellent heat retention and are very cheap. I suppose you could use normal bricks laid long side up but do use a herringbone pattern otherwise you'll be constantly snagging your peel on the edges. Don't worry about the gaps as they'll fill with ash, but they will need to be level.
ps - Loose laid is best as you may have to replace a damaged brick.
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