Underfloor Heating Installation Guide
Installing our heating products... The following diagrams illustrate how CU Heating underfloor heating products can be installed beneath different floor types. Please note that every delivery comes complete with detailed fitting instructions, which explain every stage of the process in an easy to follow, step-by-step guide. 
Timber Sub-Floor Prior to installation, always ensure that the substrate is sound: ensure that any loose boards are firmly affixed and, where necessary, reinforce to prevent movement which might cause tiles to crack. Reinforcement can be achieved by covering the floor with our PCS CU construction board or 18mm WBP plywood. Concrete Sub-Floor Prior to installation, repair any imperfections in the concrete surface and level the floor using suitable building materials. Clean the resulting surface to remove dust, dirt, grease or oil marks.Concrete surfaces should be primed with a PVA prior the the installation of our CUmat 160w/m for comfort heating, or 200w/m for primary heating under tiles. Fitting our 10mm PCS CU Construction boards to the concrete sub-floor, will inprove the heating efficiency and reduce running costs. Bituminous Flooring In cases where bitumen has been used – a flexible latex leveling compound must be used as a barrier between the bitumen and the heating system. For more details, please call our technical support team on 0800 023 26 28. Electrics/Power Supply A qualified electrician can advise on the electrics and must help you with the final connection to the mains. Information for electricians regarding power supply can be found in our Trade section. Customising Heating Mats 
Cable Size Chart View our cable size chart below to determine the length of cable you will require. 
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