Fire brick and cement block

[sephora2011]

Hello all!

We are putting in a barbeque pit next to our WFO. For the pit itself does anyone see a problem if the fire bricks are resting on the cement block (it would actually be the "walls" of the pit right up next to the "walls" of the pit structure). I had originally planned on a little space between them but things are looking to fit a little tighter than expected and I just want to make sure the heat wouldn't be an issue.

It would be similar to the pic below (not mine).

Thanks!!

[brickie in oz]

Re: Fire brick and cement block

Concrete will fail with heat, sometimes dramatically so, like bang, pop.