WarmMat Pro - Electric Underfloor Heating Mats (150W/m²)



Combine the highest comfort levels with maximum energy efficiency. It is a proven technology that's safe, reliable and energy efficient.

  • Single point connection
  • Twin conductor cable
  • Emits zero EMF (electromagnetic fields)
  • Safety approved for wet locations
  • Flexible installation
  • Durable construction
  • 25 Year limited warranty against manufacturing defects

Available from 2m² to 12m² in 150W/m².

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Size (14)
Thermostat Options (2)
Accessories (9)
£0.00 (+ VAT)

Free Delivery on All Electric Mats

Excludes orders with XPS Insulation and Levelling Compound.

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230V Heated Area Mat Dimensions Watts (150W/m2) Amps ohms
Catalog Number m2 sq.ft. m*m in.*ft.
WarmMat/150-150-1.0 1.0 10.8 0.5*2 20*6.6 150 0.7 352.7
WarmMat /150-225-1.5 1.5 16.1 0.5*3 20*9.9 225 1.0 235.1
WarmMat /150-300-2.0 2.0 21.5 0.5*4 20*13.1 300 1.3 176.3
WarmMat /150-375-2.5 2.5 26.9 0.5*5 20*16.4 375 1.6 141.1
WarmMat /150-450-3.0 3.0 32.3 0.5*6 20*19.7 450 2.0 117.6
WarmMat /150-525-3.5 3.5 37.7 0.5*7 20*23.0 525 2.3 100.8
WarmMat /150-600-4.0 4.0 43.1 0.5*8 20*26.3 600 2.6 88.2
WarmMat /150-675-4.5 4.5 48.4 0.5*9 20*29.5 675 2.9 78.4
WarmMat /150-750-5.0 5.0 53.8 0.5*10 20*32.8 750 3.3 70.5
WarmMat /150-900-6.0 6.0 64.6 0.5*12 20*39.4 900 3.9 58.8
WarmMat /150-1050-7.0 7.0 75.3 0.5*14 20*45.9 1050 4.6 50.4
WarmMat /150-1200-8.0 8.0 86.1 0.5*16 20*52.5 1200 5.2 44.1
WarmMat /150-1350-9.0 9.0 96.9 0.5*18 20*59.1 1350 5.9 39.2
WarmMat /150-1500-10 10 107.6 0.5*20 20*66.6 1500 6.5 35.3
WarmMat /150-1800-12 12 129.2 0.5*24 20*78.8 1800 7.8 29.4

Product Details

Cable Construction Twin conductor
Rated Voltage 230V
Output 150W/m2 (-5% to +10%)
Cable spacing 80mm(150W/m2)
Cable Diameter 3.6mm
Conductor Insulation fluoropolymer
Outer Insulation PVC
Max. Ambient Temp. 85℉(30℃)
Min. Installation Temp. 40℉(5℃)
Cold lead 2-wire plus ground braid: 2.5m length

Safety Guildeline

Always read the instructions carefully. All electrical connections must be made by a qualified electrician to the applicable regulations. All electric underfloor heating systems must be RCD protected.

100w / 150w / 200w mats

100w mats should be used where fitting directly to timber substrates. 100w and 150w mats can be used with any floor covering (see flexible levelling compound section notes) and on insulation/backer boards. We recommend 200w mats are used for high heat loss rooms (tile use only).

Insulation/Tile backer boards

We recommend the use of insulation and/or tile backer boards underneath the mat to ensure optimum performance, reducing downward heat loss and to provide a faster warm up time.

Flexible Self Levelling compound

We recommend the use of levelling compound (minimum 5mm for tiled finishes) over the electric mats. This will provide an improved performance and leave a surface suitable for the tile covering. A minimum of 10mm self levelling should be used for any other floor finish (with exception of insulative floors, such as: bamboo, rubber back carpet, cork etc). Always check with the manufacturers recommendations when using their products with Electric UFH.

Thermostat max. loading

The maximum load per thermostat should not exceed 3600w (for example 24m² 150W/m² mats). Where loading will exceed 3600w, a suitably rated contactor must be used (refer to your qualified electrician).

Floor coverings

Tiles and natural stone etc are the best for output. Laminate, engineered wood, vinyl and carpet can all be used provided levelling compound is used and the thermal resistance of the floor covering does not exceed 0.18m²K/W (1.8 tog)

Final checks

Please double check all dimensions before attempting to lay the heating elements, allowing for fixed furniture, such as, sinks, bath, shower trays, kitchen units, islands etc.

The cables cannot be shortened, so it is important to get the sizes correct.


  • Use flat bottom furniture with no air gaps, such as bean bags, mattresses, sofas with no feet, pet beds, rubber back carpets/rugs. Anything that may create a thermal blockage, as these are potential hazards.
  • Switch the system on too early and let the compounds dry out completely. Leave it longer if installing in colder ambient temperatures.
  • Use staples, clips, duct tape to hold the cables

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