A wide variety of towel radiators will deliver a heat output sufficient to warm up most bathroom spaces, and keep them at a comfortable temperature.
That said, everything will depend on the size of the surface area – significantly larger bathrooms could necessitate an added heat source to provide an adequate BTU output.
For the bathroom, or any other room in the home, you can utilise our BTU Calculator to determine which towel radiator model will be up to the task of properly heating the space. Or, whether you might need to add additional designer radiators to achieve a comfortable room temperature.