A fan motor housing including a circumferential motor housing having a radially outer surface and a radially inner surface and defining a primary axis including a first plurality of concentric flow channels disposed between the radially outer surface the radially inner surface, wherein the concentric flow channels extend in an axial direction parallel to the primary axis, a second plurality of concentric flow channels disposed between the radially outer surface and the radially inner surface, extending in an axial direction parallel to the primary axis, wherein the first and second pluralities of concentric flow channel are thermodynamically connected, a first plurality of radial conduits connecting the second plurality of flow channels to the radially inner surface of the motor housing, and a second plurality of radial conduits connecting the radially inner surface of the motor housing to the second plurality of flow channels.