I found some firebrick from an ole chimney that was demolished. It's the red clay bricks. Does anyone know if they will work for a rocket mass heater like this one.
Quick question. Should I use regular mortar for my firebrick, or Refractory cement? Seams I"v read where people have used both so I"ll ask the experts. Thanks.
I'll try to post a pic or 2 soon as I begin my project.