The Benefits of Mirror Demisters:
There is a simple solution to those misted up mirrors in your bathroom so you no longer have to wait for the mist to clear before drying you hair, shaving or putting on make up. Mirror demisters are totally safe and resistant to moisture, vibration and dust. They are connected to your bathrooms lighting supply and keep your mirrors mist free by gently warming the mirror.
Installation Guidelines:
It is important that heaters are checked for damage before installation to ensure that the metallic filament has not been creased and that the protective film has not been pierced. The size must also be checked to ensure that it will fit on the mirror with a minimum 10mm gap between the film edge and the mirror edge. The demister must NOT be visible after installation. The mirror to be used in the application must be suitable for the purpose. The mirror must be completely flat and free of stress and crack lines. NO accessories or other materials should be adhered or fixed to mirror surface as this can create uneven temperatures and stress upon the mirror. The mirror demister must be mounted directly on to the reverse side of the mirror OR onto a surface which is in direct contact with the mirror.
The demister is self -adhesive, NO other adhesives should be used. The mirror must be installed on to a wall which is sound, has a flat and level surface, which is free of moisture. The wall must also be capable of bearing the weight of the mirror. The mirror must be fixed completely flat to the wall to prevent stress to the mirror and in accordance with the manufacturer's instructions, using suitable fixings.
Mechanical fixings must NOT pierce or touch the demister OR create undue stress on the mirror or demister due to over tightening. If the demister is to be adhered to the wall the complete surface of the mirror back and demister must be coated with the adhesive. ALL the installed components of the demister including the wiring must be protected and covered so as to be inaccessible after installation, in compliance with national safety standards. The demister comes with a power supply cable. This cable can be extended if required using suitable connectors and a correctly rated cable.
Fitting Instructions IMPORTANT: The film should be applied slowly in a constant motion as the adhesive protective cover is removed. The protective cover should NEVER be completely removed before applying the heater to the mirror. The heater should not be creased OR folded at any time. Ensure no air bubbles are trapped under the film surface.
- Mark the location of the demister on the back of the mirror.
- Peel the adhesive protective cover away from one corner and place at the corner of the area to be covered.
- Continue to slowly peel the adhesive protective cover off the film surface, applying firm, even pressure to adhere the film to the surface as the adhesive protective cover is removed. (ensure no air bubbles are trapped at any time).
- Once the heater is adhered to the mirror surface, locate the connector block adhered to the mirror and measure its position relative to the mirror edges.
- Cut a recess in the wall where the measured location of the demister power cable connector will be sited, so as to allow the mirror to be adhered flush against the fall surface.
- Feed or recess power cables to point of connection as required.
- Affix mirror to wall using suitable fixings / adhesive as per the mirror manufacturer's guidelines, ensuring that no cables or connector are trapped behind the mirror which cause the mirror to be stressed or sit unevenly on the wall.
Final connections should be made by a Part P certified electrician.
Electrical Considerations:
As with all electrical projects governed by Part P regulations, all mains electrical connections must be undertaken by a certified electrician. All work must be carried out in accordance with the IEE wiring regulations to BS7671 or national regulations. The mirror demister must be connected to a lighting circuit, with a maximum 5 amp fuse of circuit breaker in the distribution board/consumer unit. The heater can either be connected directly to a switched light circuit, which will turn on the heater when the light is switched on OR via a separate switch connected to the main lighting circuit.
If more than one demister is to be installed, they edges MUST be at least 5mm apart and the wiring MUST be in parallel. Heaters must NOT be connected in series. The power rating of the circuit should also be checked to determine that the heaters will NOT overload the lighting circuit. Any metal parts which are accessible and are in contact with the mirror must be earthed / grounded in compliance with BS7671 or national regulations.
James S Jones
Warmup
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