Dryers, in particular, industrial dryers, for drying and curing coatings and lacquers, Drying machines, in particular, drying apparatuses and drying machines for drying coatings and lacquers; Drying plants, in particular, large industrial drying apparatuses and drying machines for drying coatings and lacquers; electrically heated continuous furnaces for industrial goods, in particular for lacquer testing purposes