21.01.2026

How to modernize a heating system effectively?

Small buildings, big challenge: how to modernize a heating system effectively?

HEATER CONDENS water unit heaters are designed specifically for projects like these:

  • - Low supply temperatures – energy savings when used with heat pumps and condensing boilers
  • - Intelligent power modulation – EC motors adjust output to actual heating demand
  • - Compatibility with all heat sources – from heat pumps and condensing boilers to traditional coal-fired boilers
  • - Fast and easy installation – simple wall or ceiling mounting
  • - Wide output range – 10–120 kW for precise sizing across different building volumes
  • - Mobile app control – remote temperature control and adjustment via smartphone

Want to find out which model is right for your project?

- Use our selection app:
SONNIGER - Selection Software

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21.07.2026
Fast device selection and ready documentation
Save time on every project
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Clean air. Lower bills. Full control from your phone.
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Rapid heat-up with maximum durability.
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Partnering with Sonniger is simply a solid foundation for your business.
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in your office or store
21.06.2026
High Performance. Timeless Design.
Designed with a modern, minimalist aesthetic
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