Ltpgtthe tansun rio ip is a slim quartz heater that is fully ip rated for use outdoors or inside ltpgtltpgta bestseller here at airconcentrecouk the rio is perfect for many commercial applications such as at restaurants bars and tourist attractions it is also used on domestic patios and terracesamp8232customers admire its superb build quality and long life compared to traditional gas outdoor heaters the rio is more energy efficient and cheaper to operateltpgtl