A load bearing pile arrangement comprising a plurality of load bearing construction pile assemblies. Each comprises a pile provided with a support manifold at an upper end thereof. Each pile includes an outer tube and an inner tube between which, when the assembly is in use, provides a pathway for fluid pumped from above and down through the inner tube to a vortex manifold where the fluid swirls before passing upwards between the inner tube and the outer tube. The fluid also swirls as it passes upwards between the tubes and by at least one collar comprising an annular ring fixedly mounted on the tube the ring having helices, which cause the fluid to continue swirling as it passes upwards between the tubes and. In use, the load bearing pile arrangement can be used to recover heat from the surrounding ground; store heat in the surrounding ground; or, to store coolth, especially in a desert locality.