RBC Heat Pump is a turbo refrigerator using air for its working flow. It is eco-friendly system which can supply hot water or cooled air. It is composed of centrifugal compressor, radial turbine, high speed motor, air foil bearing and heat exchangers. TNE has been developing RBC heat pump from 2020, and the first proto type was installed in a house in Netherlands. TNE is developing 2nd version with improved efficiency and customers interface.