ECOFILM SET Underfloor Heating Elements offer simple and fast installation, with no need for self levelling compound. The set is available in three different widths with standard lengths up to 10m. The element lengths can be reduced on site if necessary and are supplied as standard with 5m “cold tails”. Available in two standard power dissipations: 130 Watt for internal living areas and 160 Watts for conservatory use. FlexelInternationalLtd. EcofilmSet Electric Underfloor Heating.