Multi Zone system ï¿½ Multiple thermostat system, one thermostat per room, these kits are based on 20m2ï¿½per room/zone. ProWarmï¿½ Overlay is a unique low profile floor heating system ideal for both renovation and new build projects. Installed over the existing floor and only 18mm in depth, ProWarmï¿½ Overlay allows floor heating to be installed where traditional under floor systems would either require expensive excavation or would require the floor to be raised to an unacceptable level. ProWarmï¿½ Overlay panel is a fibrous panel used for heavyweight floor coverings such as ceramics, or where the floor covering needs to be secured directly to the panel, e.g. engineered wood which requires fixing down. ProWarmï¿½ Overlay systems utilise a 12mm pipe at 150mm pipe centres and provide excellent response times and heat output compared with traditional built in under floor heating solutions and are therefore ideal for both traditional heating systems and low temperature renewable systems. With a unique end support that allows the installer to simply ‘SNAP-OFF’ sections to leave the desired number of channels around the edge of the room. Making the installation of the leaders and perimeter loops more straightforward.