There have been for some time. There are some issues. A minor one: the max wash load is larger than the max dryable load. A major one: the act of unloading and

There have been for some time. There are some issues. A minor one: the max wash load is larger than the max dryable load. A major one: the act of unloading and reloading gives you a chance to shake out tangles in shirt sleeves and whatnot. If you don't untangle your clothes you'll find they don't dry as well and can fatigue a lot faster! Dryers are great if you live in the south where things won't dry on their own, or if you need to run laundry fast. If you can afford it, a drying rack works great, is cheap, and is far, far easier on your clothes.