To provide a radiant drier which is of explosion-proof structure and besides is equipped with an oil.electric radiant panel for equalizing radiant heat.

In a radiant drier which is so arranged as to heat and dry long sheet-shaped base material 3 impregnated with resin liquid carried within drying chambers 4 and 5 by the radiant heat a radiant panel 1, the above radiant panel 1 possesses a radiant plate 17 whose surface side serves as a radiant face in opposition to the sheet-shaped base material, a meandering passage 18 which is made on the rear side of the radiant plate 17, an MI ble 19 which serves as a heat source, being arranged within the passage 18, and a heat medium 20 which is sealed in the passage 18.