What is ventilating air used for on a combustion heater?

The use of ventilating air in a combustion heater is primarily for carrying heat to the places where it is needed. In this context, ventilating air serves as a medium that absorbs heat produced by the combustion process and redistributes it within the cabin. This allows for effective temperature regulation and enhances passenger comfort by ensuring that warm air reaches various areas of the cabin space.

Additionally, while other functions of ventilating air might be relevant in different contexts or systems, in the case of a combustion heater, the primary purpose focuses on the distribution of heated air. Properly channeling this warm ventilation helps maintain an optimal cabin environment, crucial for both comfort and safety during flight.