The hot chamber consists of a finished steel structure that is fully insulated with polyurethane sandwich panels.
It is used to heat the chemical products directly in the containment cistern. Inside, it can contain 2 or 4 1000-litre cisterns over two floors. An efficient recirculation system, consisting of helicoidal fans with vacuum and supply diffusers, distributes the air uniformly throughout the chamber.
The heating system can be powered with steam radiators, hot water, diathermic oil or electrical resistances. Re-circulated air temperature is regulated by means of a heat-regulator on the electrical control panel.