Rinnai uses the latest technology in instantaneous gas water heaters, includes full digital control on output temperature, and its modulating burner ensures that the water heater is running at its maximum efficiency every time it is ignited, resulting in lower gas consumption. Models range from 11 litres to 32 litres per minute, suitable for domestic and commercial applications. Auto electronic ignition, copper or stainless steel heat exchanger, stainless steel burner, external models are specially designed to be weather proof, needs no flue and it does not need to be covered, internal models are also available. Gas tumble dryers are also available, suitable for both domestic and commercial applications, having a capacity of 6 kg, while using up to 70% less energy when compared to traditional electric tumble dryers.