The plan is to use Header blocks for the top layer of my foundation.This means the bottom of the block is full 390mm x 190mm x 190mm high size as per standard blocks, but the top half is 390mm x 90mm, allowing you to overlap other materials such as flooring etc in the recess or create a half width top to a wall.
This will allow me to pour the concretre pad and then insulation on top while keeping a nice tidy outside and there is liitle need for boxing.
My question is if I only put the vermiculite pad under the oven base will I lose to much heat if I surround it with normal concrete to fill out to the top of the header blocks?
This will allow me to pour the concretre pad and then insulation on top while keeping a nice tidy outside and there is liitle need for boxing.
My question is if I only put the vermiculite pad under the oven base will I lose to much heat if I surround it with normal concrete to fill out to the top of the header blocks?
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