The heat load calculation provides the energy requirement for heating a building to the specified target temperatures, taking into account the calculation method selected in each case. Heat generators and heat transfer systems such as radiators or panel heating/cooling systems are then designed on the basis of the determined energy demand.
The Dutch standards for calculating the heat load assume rooms with a maximum height of four meters. One-family, two-family and multi-family houses are calculated according to ISSO 51, offices and mixed buildings according to ISSO 53. Depending on the selected building type, the correct standard is automatically used for calculation.