Quick question.

The first chain of bricks in my dome will stand on end around the outside perimeter of the hearth floor...the hearth floor has already been cut to the shape of a circle...

I thought I read somewhere that I should leave some space for expansion between the hearth floor and that first chain of bricks (on end).. Is this correct? If so, how much space?

Thanks!

JB

The first chain of bricks in my dome will stand on end around the outside perimeter of the hearth floor...the hearth floor has already been cut to the shape of a circle...

I thought I read somewhere that I should leave some space for expansion between the hearth floor and that first chain of bricks (on end).. Is this correct? If so, how much space?

Thanks!

JB

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