SpeedComfort is specifically designed for radiators and convectors — systems that rely on rising warm air to heat the room. The fans enhance that airflow, helping to distribute warmth faster and more evenly. With underfloor heating, the heat radiates from the floor and spreads naturally throughout the space. Because there’s no vertical air movement to boost, SpeedComfort does not add value when used with underfloor heating alone. If you have a combination of underfloor heating and radiators, as in many hybrid systems, SpeedComfort works perfectly on the radiators. The fans help release heat more efficiently, allowing your system to warm the room faster and more evenly.