To better adapt to your requirements, Grandimpianti GDZ drying machines can work with three types of heating: gas, electric or steam. The gas tumble dryers have a special heating systmen with two stages that is activated wholly or partially, according to the actual need. The maximum power is reached only when it is really necessary. This guarantees a lower environmental impact and reduces fuel consumption. The gas drying machines have burners made of titanium that can withstand high temperatures. The electric models use tubular resistances made of anti-clogging INCOLOY steel. In the steam dryers the heating coils are protected by filters made of steel that block the dust.