Split a/c systems begin at around ₤ 300 for the materials for a tiny single room unit to around ₤ 1,500 per space for a multi-split cooling system and up to ₤ 2,000 per space for a VRF system. http://Executivealliance.info/__media__/js/netsoltrademark.php?d=setiathome.berkeley.edu%2Fshow_user.php%3Fuserid%3D11909975