1. Order the correct amount It is important not to order too much as you cannot simply cut the end of the mat or cable off. Products can be combined (wired in parallel) if your surface area exceeds that provided in any single mat or cable. 2. Use mats where possible Mats come with fixed cable spacings to provide uniform heat over the floor surface. Our Loose Cable Kits are designed for smaller and more awkward areas. 3. As a sole heat source Generally, 150w per square metre mat is suitable for modern buildings for tile warming, or as a sole heat source, but older buildings and conservatories may need further heat in very cold weather. An old building will clearly have more heat escaping than a modern well insulated building. The floor space that is available for heating in relation to the room size is also important, e.g. a kitchen can be a large room with a relatively small floor area when fixed objects are deducted. 4. Insulate for the best results We always advise the use of insulation to give the best performance, economy and quicker heat-up times. Do not install underfloor heating on an uninsulated concrete floor* as this will waste energy. Use Cosyboard over uninsulated concrete or on insulated concrete or timber floors for a quicker heat-up time. Help and Advice
5. Choosing a Control Unit Choose a Cosytoes® Control Unit (timerstat) to regulate energy use for maximum efficiency. We offer a variety of units, so choose the one with the features that you require. Each Control Unit can handle 22sqm (or 26sqm for the Gloss Timerstat) of heating mat. Mats can be connected in parallel if the surface area exceeds any single mat, e.g. 20m 2 can be heated using two 10m2 mats. Even larger areas can be controlled using a wireless timerstat where the transmitter can be set to communicate with multiple receivers. Each receiver can handle 22m2, so two receivers can be used to control up to 44m2 of mat and so on. Alternatively, two Control Units could be used with two heating zones. 6. Preparing the floor TradeMat Plus, Loose Cable Kits and Carrier Mat Systems should be laid on an insulated concrete or timber floor and then covered with self-levelling compound. Tiles or stone surfaces are then laid on a continuous screeded bed of adhesive in the normal way. For vinyl type floor finishes, the thickness of self levelling screed should be increased to at least 10mm thickness. *Pre 1995 building regs
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