A system can combine fan coils and underfloor heating, provided that temperatures and hydraulic flow rates are designed correctly.
Different needs
Underfloor heating usually requires a lower water temperature, while fan coils may need a different temperature depending on their selection.
Hydraulic separation
In many installations, separate zones, circulators, or buffer tanks are used so that each circuit operates correctly.
Zone control
Fan coils react quickly, while underfloor heating reacts slowly. Therefore, thermostats and automation logic should not function as if they were the same terminal.
Proper design
The final layout depends on space loads, design temperatures, and the installation's hydraulic data.