This installation s a retrofit of a failed underfloor heating.  small duct high velocity system is in the attic and has four zones.  The main duct is also placed in the attic.  The ground floor is serrved by flex duct hidden inside wardrobes. 

The existing wiring for the underfloor thermostats was used to connect Aprilaire remote sensors to connect to 8570 thermostats.  This meant that no redecortating was needed after the installation.

Derry - Ireland
Residential Retrofit

Co. Derry

One small duct high velocity system, Aprilaire zone control and thermostats used throughout