Does such a thing exist? In my mind it should, I'm without an airing cupboard in my new house, and quite miss it. So what I'm thinking is like a linen cupboard type thing, with slatted shelves to promote air circulation, but with a cheap-to-run heater inside, that you just have on very low an hour or two a day. To finish off line-dried washing or deal with slightly damp towels. And to store sheets and clean towels etc.
Any ideas anyone? TIA!