Using kiln bricks for riser

I have access to the bricks from a discarded electric kiln used to fire ceramics. I am wondering if these would work for a rocket stove riser or better used in some other part of a mass heater project.

Hi Phillip,

Welcome to Permies.

Hi Philip;
Welcome to Permies!
A good score on finding kiln bricks to use in an RMH!
Although you could use those as a riser, they might be better used becoming the core of your RMH.
Morgan super wool creates a top-of-the-line riser in 5 minutes or less.
If you do use them as a riser, then you would want to use an insulating wrap around the outside.

Hi Phillip. Welcome aboard. Nice scrounge!

Bricks from an electric kiln will be highly insulating and not need a wrapper, as long as they are laid tight and there are no gaps. Kilns typically get up to over 2000F for several hours, with the outside more or less safe to touch.