AQVOCLIMA Insight

Sizing for Underfloor Heating (35°C): Common Mistakes to Avoid

Underfloor systems are heat-pump friendly—until someone sizes the unit like a radiator system. Here’s what to check so you don’t end up with short cycling or cold rooms.

AQVOCLIMA Technical Team · Updated 21 August 2026

Three checks that save projects

  • Design water temperature : confirm 35°C targets and emitter sizing.
  • Hydraulic separation : use a proper buffer/hydraulic scheme when needed.
  • Controls : thermostat logic and pump control should match low-temperature heating behavior.