Transactions on Machine Design Benjamin Podmiljšak, Spomenka Kobe 7 2 2019 http://www.dline.info/tmd/fulltext/v7n2/tmdv7n2_2.pdf Our goal is to develop a magnetic heat pump for the heating, ventilation, and air conditioning (HVAC) systems of buildings. The magnetic heat pump uses the magnetocaloric effect, making it 30% more efficient than compressor based heat pumps. To do this we will develop the magnetocaloric composites material that will be used in a newly constructed magnetic heat pump with a special focus on regenerator design and the magnetic field source. This would lead to a more efficient energy use in low-energy buildings.