Any type of heated towel rail is appropriate for installation in a small bathroom. Standard central heating towel radiators, plus electric heated towel rails can both be used to populate a small bathroom. Or, you could opt for dual fuel towel rails that can work either from a boiler or independently via their electric heating element.
Your own unique heating requirements and preferences can practically decide which type of bathroom towel radiator you select. For more information, consult our blog, What are the best heated towel rails for small bathrooms?