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Yes you can. There are 2 recommended methods for covering the cable. The first is to apply flexible tile adhesive on top of the mat or cable so that it is completely covered, ensuring that there are no air pockets.This should be done using a rubber backed trowel or similar taking care not to damage the cable. Another layer of adhesive can then be applied using a traditional notched trowel to comb the adhesive before laying the tiles. An alternative method for all but the smallest installation is to cover the cable/cable mat installation with a suitable latex self-levelling compound. This product will find its own level and once dry will provide a suitable flat surface to apply a layer of flexible tile adhesive before laying the tiles. Can I join 2 mats together? Heating mats or cables can be joined together in parallel via a junction box to the control thermostat. Be careful not to exceed the rating of the thermostat (TH132AF which is 3450 watts). If this rating is exceeded a suitably rated contactor needs to be used in conjunction with the thermostat. Can I use my Floor Heating immediately after installation? NO. You need to give the installation adhesives time to dry out. Consult the information provided by the tile adhesive and/or self leveling compound manufacturer used in your installation for recommended drying times. Premature use of the underfloor heating to cause accelerated drying of the adhesive can cause micro cracking of the material which could be detrimental to its long term performance. Can I heat a wooden floor using a cable mat? Yes you can do this but it is not the best solution. We would recommend the use of EcofilmSet underfloor heating element for heating laminate of timber floors. EcofilmSet elements provide a simple dry installation method and is ideal for all floating wood floor installations. It is ultra thin and provides minimal floor height build-up. If you must use a cable mat for heating under a wooden floor it must be covered with a minimum layer of 10mm of floor leveling compound over the top of the heating cable. This layer acts as a heat dispersion medium so that the heat from the cable is evenly dispersed throughout the surface before it reaches the wood or laminate floor covering. Always check with your floor covering specialist first. Would I be best with a Cable Kit or Cable Mat? Loose cable is ideal for installations involving intricate and irregular room designs as the cable provides maximum installation flexibility. In addition cable spacing can be varied to provide more output in designated high use areas around basins or sinks. Heating mats have a set width of 500mm and are ideal for installation in regular shaped rooms where they are very quick and easy to lay and provide a regular and even heat output. Will my cable mat provide Primary Heating? If you are considering using underfloor heating as the sole source of heating in your room you need to ensure that you allow for sufficient heat input to cover the heat losses. We recommend that you consult your architect or heating engineer to provide heat loss calculations. As a guide however, if your room complies with the insulation standards in the current building regulations, Ecofloor 160 watts/m2 cable mats can be used as a primary heating source. Rooms with potentially high heat losses such as conservatories may require a supplementary heat source on very cold days. For your information, mats with higher heat outputs per square metre, do not mean that they will use more energy to run. Heat input is controlled by the thermostat. Rather they provide quicker warm-up times. What if the heating mat/ cable is too long? The most crucial part of an underfloor heating installation is the design. Always accurately measure the effective floor area that you want heated and choose the nearest mat size down after subtracting a 10% perimeter allowance. Before installing the mat or cable check the size against the floor . If the mat/cable is obviously too long – Stop. At this stage it is best to return the product for exchange for the correct size as you cannot cut the cable. A small oversize maybe dealt with by reducing the cable spacing but any reduction will have an effect on the heat output (W/m2). Do not cross the heating cable and make sure that the minimum cable spacing distance is 50mm. Why can I not cut the cable? Specific cable lengths have been adapted to provide the correct resistance value and therefore the appropriate heat output in W/lin metre. If the cable is cut or shortened, the resistance will be changed and therefore the designed power output will be changed.
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