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Pool.down Rejected on 'Die Höhle der Löwen' After Thelen's 'Physics' Rebuke

Skepticism centered on heat-exchange physics, a €2 million valuation, and zero sales.

Overview

  • Founders Aurel and Nicolai pitched an app-controlled heat-exchange unit that cools a standard bathtub to about 3°C and links to wearables for heart-rate monitoring.
  • Guest investor Anne Lemcke stepped into the pre-cooled ice bath on stage, creating a vivid demonstration that did not resolve investor doubts.
  • Frank Thelen warned the device would dump heat into living spaces in summer, dismissing the concept with a pointed "Physik!"
  • The team sought €200,000 for 10% equity, signaling a €2 million valuation, while reporting no revenue and targeting a consumer price near €1,500.
  • Carsten Maschmeyer declined with a quip that the cold water left him cold, and the pitch ended with no deal.