I have a heated towel rail in my bathroom. It runs off the central heating, but on a special valve which I think is linked to the hot water, so that it is always on, even when the heating is off. I use huge fluffy towels, hand them over the heated towel rail, and they are dry probably within a couple of hours. We each have bath towels and a smaller one for our hair, and they get washed along with the bathmat once a week.