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Case losses in boilers


To ensure heating, the boiler runs with cycles of start/stop, which depends mainly of the heat demand. During operation, the temperature of the boiler walls rises up above the ambient air temperature, due to the heat released by the combustion process. When the boiler stops, the boiler surfaces temperatures are still higher than the ambient air. Heat can be transferred from the boiler to the local in which the boiler is installed. This heat released throughout the boiler walls is called case losses.

Source: Cetiat