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M Series Underfloor Heating Mats

M-Series Heating Mats

lifetime warranty shield

  • Highest quality heating mats covered by an extended lifetime warranty
  • An economic means of heating a room as well as providing a luxurious warm floor
  • Ideal for any room including conservatories, bathrooms and wet rooms
  • Suitable for a wide variety of floor surfaces

Range & Prices

The prices shown are list prices and perfectly safe to use for budget purposes. Contact your electrical wholesaler for final prices.


Standard Output Mats (150W/m²)

Providing a sole source of heat for the vast majority of rooms

Model kW Area (m²) Size (m) List Price
M150-005 0.07 0.5 1.0 x 0.5 £63.00
M150-010 0.15 1.0 2.0 x 0.5 £70.00
M150-015 0.22 1.5 3.0 x 0.5 £93.00
M150-020 0.30 2.0 4.0 x 0.5 £124.00
M150-025 0.37 2.5 5.0 x 0.5 £132.00
M150-030 0.45 3.0 6.0 x 0.5 £155.00
M150-035 0.52 3.5 7.0 x 0.5 £177.00
M150-040 0.60 4.0 8.0 x 0.5 £210.00
M150-045 0.67 4.5 9.0 x 0.5 £222.00
M150-050 0.75 5.0 10 x 0.5 £242.00
M150-060 0.90 6.0 12 x 0.5 £288.00
M150-070 1.05 7.0 14 x 0.5 £313.00
M150-080 1.20 8.0 16 x 0.5 £331.00
M150-090 1.35 9.0 18 x 0.5 £362.00
M150-100 1.50 10 20 x 0.5 £389.00
M150-110 1.65 11 22 x 0.5 £442.00
M150-120 1.80 12 24 x 0.5 £484.00
M150-140 2.10 14 28 x 0.5 £536.00
M150-160 2.40 16 32x 0.5 £610.00
High Output Mats (200W/m²)

Recommended for conservatories and rooms with very high heat losses

Model kW Area (m²) Size (m) List Price
M200-010 0.2 1.0 2.0 x 0.5 £77.00
M200-015 0.3 1.5 3.0 x 0.5 £103.00
M200-020 0.4 2.0 4.0 x 0.5 £131.00
M200-030 0.6 3.0 6.0 x 0.5 £163.00
M200-040 0.8 4.0 8.0 x 0.5 £215.00
M200-050 1.0 5.0 10 x 0.5 £257.00
M200-060 1.2 6.0 12 x 0.5 £314.00
M200-070 1.4 7.0 14 x 0.5 £357.00
M200-080 1.6 8.0 16 x 0.5 £436.00
M200-090 1.8 9.0 18 x 0.5 £473.00
M200-100 2.0 10 20 x 0.5 £585.00


F-Board Insulation
Model Thickness (mm) Dimensions (mm) Area per board (m²) List Price
F-Board-6 6 1200 x 600 0.72 £26.00
F-Board-10 10 1200 x 600 0.72 £29.00


Model Description List Price
EHM-R-Kit Cable repair kit (emergency use only) £41.00

Technical Specification

Heating Mat Specification

Voltage supply:230V
Outputs:from 0.07kW to 2kW depending on model
Webbing:fibreglass (500mm wide)
Fixing:continuous double sided tape
Power lead:3m long two core and earth
Cable approvals:EN60335-2-96 as required by the 17th Edition Wiring Regulations (BS7671.2008)
Cable diameter:3mm to 4mm
Earth screen:continuous AL/PET foil


F-Board Insulated Tile Backer Board Specification

Compressive strength (10% compression):300kpa
Thermal conductivity to BSEN13164 (5 years):0.033W/Mk
Water absorption by volume:0.6%
Density (rigid foam core):36kg/m³
Temperature range:-50°C to +75°C
U value (6mm thick board):6.6W/m²k
U value (10mm thick board):3.66W/m²k
Outer surface (top and bottom):Reinforced mesh with cementitious hard coat



If you would like the experts at BN Thermic to select an underfloor heating system for you, please click below to access our enquiry form.  Simply provide as much information as you have available and we will respond with a detailed proposal.

Enquiry Form

Selecting the required mat or mats for a room is a simple four step process.

Check floor surface

M Series heating mats are most commonly installed under tiles either in flexible self-levelling compound or directly into the tile adhesive.  However M Series heating mats are frequently used with other floor surfaces such as carpet, vinyl, laminate and engineered wood with the heating mat being completely covered in a flexible self-levelling compound which is allowed to dry before the floor surface is applied.

If there is any doubt about the suitability of any given floor surface for use with underfloor heating, confirmation should be sought from the flooring supplier.

Choose between standard output, and high output mat
Standard Output (150W/m²)

Other than in exceptional circumstances, standard output mats will provide a sole source of heat in a room

High Output (200W/m²)

High output mats should be selected when one of the following applies:

  • A room has exceptionally high heat losses (this may apply to some conservatories)
  • A rapid heat up is required perhaps because a room is rarely used
  • It is only possible to heat a small percentage of the total floor area
M Series diag1

Typical M Series Installation

Select the correct size mat or mats

The objective is generally to cover as high a percentage of the free floor area as possible.  The free floor area is defined as the floor area not occupied by permanent fixtures such as kitchen cabinets and shower trays.  As a rule of thumb, we suggest selecting a mat with a total area approximately 10% less than the total free floor area.  This will allow for perimeter spacing and ensure easy installation.  In larger rooms it is common practice to install more than one mat.

Select insulation boards

To limit downward heat loss and to significantly improve economy, the use of F-Board insulated tile backer board is highly recommended.  The use of F-Board insulation is particularly important when heating mats are installed on top of an un-insulated concrete slab.  F-Board is available in two thicknesses: 6mm and 10mm.  We recommend using 10mm board except when it is vital to keep the floor height to a minimum.  Each board covers an area of 0.72m².  Therefore to select the correct number of boards, simply divide the total floor area by 0.72.

F-board is lightweight and easily cut to shape.



Underfloor heating cables must be thermostatically controlled.  BN Thermic offers a wide range of programmable thermostats.

B16C ProgrammableThermostat