gks 24/01/2010 14:31:24 cooler selection dear expert, I want to know . what is difference in IKN with conv. Grate cooler and pyro floor cooler sp.air (nm3/kg clinker), total heat loss and cooler tharmal efficiency max. With regards Gks Michael Clark 30/01/2010 21:22:51 The best would be tool on the websites of IKN & KHD and see the figures they are quoting.