Andres Maslowski wrote:My questions are; Is it possible to use ordinary cement mortar in the rock bench? Taking in consideration that this part of the RMH does not take the direct heat of the burning tunnel and the reburn of gasses in the drum cascade. And can the burn tunnel and drum be separated with a fire felt blanket before covering with rock work? I read in the 6" annex RMH document from Erika and Ernie that a 1/4" corrugated cardboard layer can be use as expantion barrier in some cases.
Again, my burning tunnel/chamber is being built with fire brick and refractory cement
Are Erika And Ernie linked to this forum? Can they suggest anything with their expertise?