The innovation of the Fire 155 Infrared Heater lies in the elimination
of the refractory material cone that surrounds the conical combustion
chamber that's typical of other competitor's units. Our heater features
a metallic force air insulation pocket between the combustion chamber
and the external protection cone. The cooling air is blown through the
pocket by the burner fan. This innovative technology over comes the
well-known problem of the fragility and brittleness of the ceramic cone.