Brussels, 22/03/2005 (Agence Europe) - Europump, the European Association of Pump Manufacturers, launched a voluntary energy labelling system on Monday for electric circulator pumps which allow hot water to be pumped around central heating circuits for greater efficiency in terms of energy consumption. The four largest manufacturers of pumps, the German company Wilo, the British CP and the Danish firms Grundfos and Smedegard, have signed a voluntary unilateral agreement with the aim of...