ProWarm™ ProGrid Cable Electric Underfloor Heating systems provide a reliable and effective underfloor heating system that can work with tiles and many other floor coverings (installation methods differ, please call us for advice). Product CodeCable Length230watts 60mm Spacing150watts 90mm Spacing115watts 120mm Spacing PROGRIDCABLEONLY1.010.9m0.7m21.0m21.3m2 PROGRIDCABLEONLY1.516.4m1.0m21.5m22.0m2 PROGRIDCABLEONLY2.021.9m1.3m22.0m22.6m2 PROGRIDCABLEONLY2.527.4m1.6m22.5m23.3m2 PROGRIDCABLEONLY3.032.8m2.0m23.0m23.9m2 PROGRIDCABLEONLY3.538.3m2.3m23.5m24.6m2 PROGRIDCABLEONLY4.043.8m2.6m24m25.3m2 PROGRIDCABLEONLY4.549.3m3.0m24.5m25.9m2 PROGRIDCABLEONLY5.054.7m3.3m25m26.6m2 PROGRIDCABLEONLY6.065.7m3.9m26m27.9m2 PROGRIDCABLEONLY7.076.6m4.6m27m29.2m2 PROGRIDCABLEONLY8.087.6m5.3m28m210.5m2 PROGRIDCABLEONLY9.098.5m5.9m29m211.8m2 PROGRIDCABLEONLY10.0109.5m6.6m210m213.1m2 PROGRIDCABLEONLY12.0131.4m7.9m212m215.8m2 PROGRIDCABLEONLY14.0153.3m9.2m214m218.4m2 PROGRIDCABLEONLY16.0175.2m10.5m216m221.0m2 Don’t forget to click here to order your ProWarm ProGrid Matting (1000mm x 1000mm) once you have chosen your cable length