Long-term reliability.

Heat cost allocators are used for consumption-based measurement of the heat output of radiators in multi-family residential buildings, housing complexes, and commercial properties. They record the individual heat consumption of each dwelling or usage unit, providing the basis for transparent, traceable, and fair allocation of heating costs according to actual consumption. As an essential component of modern submetering solutions, they help make energy consumption visible, identify opportunities for energy savings, and support efficient building management.

Against the backdrop of increasing energy efficiency requirements and evolving regulatory frameworks, the accurate measurement of heating energy is becoming ever more important. Particularly in buildings with central heating systems, heat cost allocators enable a fair distribution of heating costs based on the actual consumption behaviour of occupants. At the same time, they support compliance with the European Energy Efficiency Directive (EED) by providing the basis for regular consumption information and greater transparency in energy use.

Sontex heat cost allocators offer a comprehensive portfolio for reliable, consumption-based heating energy measurement. The devices combine simple installation with flexible parameterisation and integrated memory functions to ensure transparent and long-term traceable consumption data. Extensive historical and billing date memory values, automatic commissioning, and advanced security features ensure reliable operation throughout the entire service life.

With communication options including Sontex Radio, Wireless M-Bus (wM-Bus) / OMS® and LoRaWAN®, Sontex heat cost allocators can be seamlessly integrated into existing AMR, smart metering, submetering, and building management systems. Depending on the model, the devices support walk-by and/or remote meter reading and comply with the requirements of the European Energy Efficiency Directive. This provides housing companies, metering service providers, and building owners with a future-proof solution for digital consumption metering and heating cost allocation, combining high measurement accuracy with modern wireless communication and maximum system integration.