Abstract: A structural flooring panel comprises an upper sheet, a lower sheet and a plurality of longitudinally extending ribs between the sheets. The ribs are laterally spaced to define at least one longitudinally extending, internal channel within the panel.

Abstract: A structural flooring panel comprises an upper sheet, a lower sheet and a plurality of longitudinally extending ribs between the sheets. The ribs are laterally spaced to define at least one longitudinally extending, internal channel within the panel.

Abstract: A structural flooring panel comprises an upper sheet, a lower sheet and a plurality of longitudinally extending ribs between the sheets. The ribs are laterally spaced to define at least one longitudinally extending, internal channel within the panel.

Abstract: A geothermal heat pump system comprises at least one heat exchange unit and a ground loop in fluid communication with the at least one heat exchange unit. The ground loop has a feed into which heat exchange fluid is delivered by the at least one heat exchange unit and has a discharge via which circulated heat exchange fluid is returned to the at least one heat exchange unit. The ground loop comprises at least one fluid circuit formed of tubing arranged to define a plurality of laterally spaced, vertical coils buried in earth beneath a foundation slab of a building structure.