LWM 250 – Overview

  • Heat recovery from the extract air
  • Reduced heating costs
  • For healthy air changes
  • Protection against moisture damage

The ventilation module LWM 250 combines three decisive benefits. Firstly, it ensures a healthy air change thanks to its ventilation function and protects against moisture damage, particularly low energy houses. Secondly, it reduces heating costs as latent energy in the extract air is withdrawn and transferred to the brine circuit. This results in a requirement for only a small ground probe, thereby reducing installation costs.

Technical Data


Product Number


Rated voltage

230 V


360 mm


600 mm


420 mm