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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09.09.2025
HEATER CONDENS
Efficient and dependable heating!
04.09.2025
At SONNIGER, we make your work easier!
#SonnigerForDesigners
02.09.2025
SONNIGER Technologies
Present in 55 countries worldwide!
26.08.2025
Get ready for the heating season!
with SONNIGER!
19.08.2025
Air Curtain GUARD ONE
Just plug it in and it’s ready to go!
12.08.2025
HEATER CONDENS
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