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Post by downunderdave on Mar 2, 2017 19:33:18 GMT
So if I did vermiculite base, with fire brick on top? How would I retain the fire bricks on place? The floor bricks just sit there. If you have problems with them being uneven use a 50/50 mix of powdered clay and sand around 1/2" deep.as a leveller. As I said previously "Sinking firebricks into the mix will negate the bricks ability to expand and contract freely and individually. As the centre of the floor takes the most punishment you could probably set some bricks there loose and use the castable around them. I'd guess around half the total floor area should be firebrick". Read more: ukwoodfiredovenforum.proboards.com/thread/2837/newbie-first-time-builder#ixzz4aCNAQYZ0 |
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Post by moosem on Mar 14, 2017 22:55:35 GMT
I had one of those wooden cable bobbins years ago and after 3 years in the weather it was done. A wood fired oven should last generations and is far better built on a masonry stand. However if you have your heart set on using it you will need an insulating slab at the least, between it and the cooking floor. A mix of vermiculite and cement (5:1) is probably the cheapest way to go. Agree the above. An alternative could be celcon blocks (there are types with better insulation than others) which are very easy to cut to shape. On top of which you can lay hearth (firebricks) and even better would be a layer of insulation between. Any idea which celcon blocks provide the best thermal/insulating property |
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Post by dave36 on Mar 15, 2017 7:38:27 GMT
Agree the above. An alternative could be celcon blocks (there are types with better insulation than others) which are very easy to cut to shape. On top of which you can lay hearth (firebricks) and even better would be a layer of insulation between. Any idea which celcon blocks provide the best thermal/insulating property I went for solar grade celcon blocks - the ones with the blue stripe on them. Bought from Travis Perkins. They have the lowest thermal conductivity. |
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