A++ tumble dryers are energy efficient, meaning you can save money on your domestic bills. Devices with a timer option let you set the machine to run at more economical times, too. You can opt for a load size that suits your home, as well as taking advantage of variable programmes to care for even delicate fabrics. A condenser dryer doesn't need external outlets, so it can be positioned in any well-ventilated room, making it ideal for flats or rental properties.