FILTER offers high-quality and energy efficient heating and cooling systems in the form of small, midsize and large substations.

Small and middle size substations: These units are ready to use plug-and-play systems supplying hot water for both the tap and space heating circuit. The space heating supply can be connected to radiators and floor heating outlets (3 circuits maximum). For domestic hot water, either a reliable self-acting controller with integrated sensor could be employed or a recycling pump. This is flexible solution for one-family houses totaling to 6 apartments. 

Key features:
- Always sufficient, stable and hygienic domestic hot water supply
- Space-saving design – extremely thin means low weight and quick installation
- Individual metering of tap water consumption and use of energy
- Offers the lowest return temperature on the market

Large substations: The large substations can be customized according to customer’s end requirement. The deliverables include domestic hot water & space heating (4 circuits maximum), cooling or space heating only.

Key features:
- Pre-assembled, pre-mounted, pre-wired – ready to go
- Top quality backed by unique and outstanding expertise
- An energy-efficient solution thanks to optimal heat recovery & low return temperatures
- Supervision through customer’s laptop or smartphone via Siemens Cloud

 
Heat Interface Units   District Heating Substations   District Cooling Substations