Designed exclusively for space heating, this Rointe 330W Kyros Low Consumption Radiator is constructed of several vertical elements whose design facilitates natural air convection and whose material (injected aluminium) has an extremely high heat transfer coefficient. Characteristics In the Kyros radiator test, a 1,400W model is used to simulate the heating of a 12m sq. room with the thermostat set to 21°C. The average power needed during the test was 560W, which represents 40% of the nominal power, offering an equivalent ratio of consumption. If you multiply the nominal power by the equivalent ratio of consumption, the result is the effective power along with low consumption.