While the Assessment details tab asks for heating and cooling types your selection for the type of heating or cooling system does not affect the number of credits. The number of credits are influenced only if heating or cooling systems are applicable or not. Therefore, for a situation where the design is in early stages and the building services details have not been decided, your selection simply needs to confirm whether or not the building is heated and whether or not the building is cooled using the drop down menus for “Building services – heating system type” and “Building services – cooling system type”. This must be completed for the assessment tool to function.