Older community heating systems in particular have high return temperatures of above 60°C in some cases. This can be caused by hydraulic short-circuits or badly controlled network pumps, for example.
In Scandinavia the heating networks have been consistently optimised for many years. A large-scale study has examined the average forward and return temperatures of 129 heating networks. According to this, the average return temperature across all heating networks was an average 48.2°C.
In heating networks with unsuitable return temperatures, ‘bad’ consumers can be identified using the SaveEnergy temperature management system. The SaveEnergy temperature analysis derives a specific plan of measures for the optimisation of the heating network on the basis of a profitability analysis.