The invention concerns a catalytic converter for the exhaust from an internal-combustion engine. The converter has a casing containing a support, preferably with a multiplicity of channels running parallel to each other to form a honeycomb-like structure, the channel walls being coated with a layer which has a catalytic effect on the exhaust gases. The catalytic converter is characterized in that at least part of the surface of the support is coated with at least one electrically conducting resistance-heating layer.
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