Towel rails are no longer a luxury in your bathroom. They are now commonplace and have the benefit of warming your towels but also as a great decorative piece on your wall. They are quite efficient in producing heat but they will not heat up a bathroom as well as a standard radiator. Some important considerations when buying a heated towel rail is the size of the room that its being installed in. As a rule of thumb, the larger the room the larger the towel rail that will be required as they generally will then have a higher BTU output.