The hot air generator shall consist of three segments, which are, the combustion chamber, the conical venturi mixing chamber, and the outlet chamber. The circular combustion chamber will have a burner wall at one end. The burner shall be fitted onto the burner wall at one end of the combustion chamber that will fire directly into the chamber.

The combustion chamber shall be made of two concentric shells wherein the inner shell lined with refractory material, will work as a combustion chamber and the dilution air will be forced through the annular gap available between the two concentric shells.