Refractory insulating module

An insulating module comprising a plurality of insulating module layers arranged with major surfaces in a side-by-side orientation,

• each layer comprising a first section having at least one slot extending therein from a slot joint edge;
• and a second section having at least one tab extending from a tab joint edge thereof;
• wherein each tab is interlocking engaged with a paired slot on the first section and each slot has an inner contour which substantially corresponds in shape to an outer contour of its paired tab;
• whereby the joint edges of the first and second sections are held in juxtaposition along a section juncture;
• and
• the first and second sections each comprise a fibrous refractory insulation material;
• and
• the section juncture in each insulating module layer is positioned such that the section junctures in any two adjacent layers are offset with respect to each other.

An insulating module comprising a plurality of insulating module elements arranged with major surfaces in a side-by-side orientation;

• each element comprising a U-shaped fibrous refractory section having at least one slot extending therein from each of its two slot joint edges;
• and two second fibrous refractory sections each having at least one tab extending from a tab joint edge thereof;
• wherein each tab is interlocking engaged with a paired slot on the corresponding slot joint edge and each slot has an inner contour which substantially corresponds in shape to an outer contour of its paired tab;
• whereby the joint edge of each second fibrous refractory section is held in juxtaposition with one of the slot joint edges of the U-shaped fibrous refractory section along a section juncture;
• and
• each section juncture is positioned such that the section junctures in any two adjacent insulating module elements are offset with respect to each other.