Abstract: The invention relates to a lining hose (1) for trenchless renovation of a conduit or pipe (2) laid underground, having at least one fabric or nonwoven layer (5) which is impregnated or saturated with a curable liquid resin. The object of the invention is to provide an approach for trenchless renovation of conduits or pipes, said approach being improved in comparison to the prior art, in particular a more energy-efficient and inexpensive approach. The invention achieves this object in that the resin can be thermally cured and contains magnetic nanoparticles. The resin that contains nanoparticles can be converted into a thermosetting plastic by applying an alternating magnetic field. The invention also relates to a corresponding curing device with a magnetic field generator (13) and to a system and a method for trenchless renovation of conduits or pipes.