Light duty-panel type burners are intended for use in furnace walls (or roofs-KZ-555 Series only) of varying thicknesses and where close burner spacing is a requirement. The integral cup-block construction permits nesting the burners against each other to form radiant banks.

These burners are normally recommended for use where temperatures do not exceed 2000°F (1093°C). However, all critical metallic parts are fabricated of heat resistant alloy material.

The design of the KZ-554 and K-255 Series permits withdrawal of tip-holder assembly from furnace exterior to facilitate tip replacement.