Retro Fit / Low profile Multi zone Underfloor Heating Kit 140m²Retro Fit Low profile single zone Underfloor Heating Kit 140m Soleheat is delighted to offer our new low profile panels to make underfloor heating installation that much easier. Simply install the kit and fit your tiles or flooring directly on top with the lower profile 12mm piping. Due to the low profile nature of the system, it can be installed only using a 15mm depth which gives significant flexibility over the traditional underfloor heating