Originally posted by mnl
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Thats pretty much what i did Mark. I used a 5:1 vermi -mix sandwiched by the oven and some concrete blocks.You may want to opt for either more insulation or thermal mass,depending on your needs though.
If you recall my thread at the start i was going down the route of Alan Scotts original design which basically is a lot more thermal mass than is necessary for the casual user.I opted to change the design for something more versatile to allow for quicker firings and a decent amount of heat retention.So in the end i dont really have much thermal mass at all,just 75 mm all round and approxiamately 125 mm of insulation all around.
Of course i cant yet say how effective that combination is until i start using it regularly but its seems to be a popular formula around here.
You'll work out what suits you best.
Cheers,John.
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