Accessories & ToolsUnderfloor Heatingdemista™ Mirror Demister 700mmx1010mm


£94.80 Inc VAT

demista™ by Heat Mat – Mirror demister pads automatically keep mirrors steam free


Product Code: HM7070L101

Size: 700mmx1010mm

Wattage: 136W

Price (inc.VAT): £94.80

Brand: HeatMat

  • Low power consumption
  • No thermostat required
  • Wire through the lighting circuit
  • 12V SELV and bespoke options available

Heat Mat’s range of mirror demisters, manufactured by demista™, automatically keep mirrors steam free after bathing or showering allowing mirrors to be used at all times. In addition to the 17 stocked sizes of 230V demisters available, Heat Mat also offer over 400 further sizes in 230V, 110V, 24V and 12V/SELV ratings as special order items (delivery timescale usually 3 working days).

Mirror demisters are available for all bathroom zones and can easily be wired through the lighting circuit so they only heat when the bathroom is in use.

Backed up by Heat Mat’s no-quibble lifetime warranty

  • Most orders can be supplied next working day direct from stock
  • Bespoke sizes available

Mirror demisters are ideal for hotel developments or projects with multiple bathrooms. We offer custom-made sizes of mirror demisters as part of our bespoke service.


Self-adhesive backing secures the mirror heater in place. For larger mirrors 150W/m mats and loose 3mm cable can be used for demisting if they are encased in a tile adhesive and used with a thermostat.

Technical Data

  • Heating Element: Carbon with copper connections
  • Supply Voltage: 230V +/- 10%
  • Power Output: 200W/m2
  • Alternative voltages: 12V & 24V units are available
  • Housing: IP44
  • Insulation: Double insulated
  • Dimensions: Varies between products
  • Coldtail lead: 1m 0.75mm2 double insulated cable


Mirror demisters can be wired through the lighting circuit, or to a separate switch if preferred. The circuit must be protected by a 5 Amp fuse or circuit breaker, and the wiring circuit must contain an all pole disconnection. Mirror heaters are not suitable for use with power supplies controlled via a dimmer switch.


Heat Mat Mirror demisters are BEAB Approved and supplied with a Lifetime warranty. We supply a range of standard sizes or can specify a bespoke solution depending on your requirements.

Product codes and sizes for standard 230V units

 Product Code Size   Wattage (W) Resistance ()
7015L025 150 x 250mm 6 8747
7020L025 200 x 250mm 9 5977
7030L025 300 x 250mm 13 3842
7030L081 300 x 810mm 48 1153
7040L025 400 x 250mm 18 2831
7040L045 400 x 450mm 33 1544
7040L081 400 x 810mm 61 849
7040L101 400 x 1010mm 76 679
7050L053 500 x 530mm 50 1034
7050L077 500 x 770mm 73 708
7050L105 500 x 1050mm 100 517
7050L149 500 x 1490mm 142  355
7060L029 600 x 290mm 32 1590
7070L077 700 x 770mm 103 499
7070L089 700 x 890mm 120 863
7070L101 700 x 1010mm 136 379
7070L113 700 x 1130mm 152 339
7070L129 700 x 1290mm 174 296



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