We have recently carried out a bespoke air conditioning installation at a vertical rock climbing facility. This is located in a very high, open space, we could not use gas heating as the gas has been removed from the building. Therefore, A/C was the answer, we carefully engineered this so the air diffusers looked similar to the hand and feet grips. Desertification fans focus the air flow in a downwards direction and keep the heat down and air moving.