Hot gas generation  for drying is based on a combustion chamber, which covers the calorific-energy demands of the process with its combustion gases, and at whose outlet a dilution system is coupled with air, either at room temperature, or preheated by exchange to meet the volumetric or flow demands of hot gases.

These equipments are usually installed in sectors that demand hot gases for drying processes and can be used with fuels, natural gas, or different types of biomass such as pellets, orujillo, granilla grape, pruning, etc.