The finned armoured heaters have been developed to satisfy the need of temperature controlled air or gas flows which is present in several industrial processes. They are also suitable to keep a closed ambient at a specified temperature.
The are designed to be inserted into ventilation ducts or air conditioning plants and are directly flown by the process air or gas. They can also be installed directly inside the ambient to be heated since they are suitable to heat static air or gases.
These heaters are finned to increase the heat exchange. However, if the heated fluid contains particles (which could clog the fins) these heaters cannot be used and smooth armoured heaters shall be used in place.