A tower melting furnace is not just a taller version of a reverb furnace. It is a different melting philosophy. The tower uses counter-current heat exchange: scrap descends from the top, hot exhaust gas rises from the bottom, and they meet in the middle. By the time the charge reaches the melting zone, it has already absorbed 60% of the energy required to melt it. I have spent 25 years working with aluminium melting furnaces in China, Southeast Asia, India,...
