Please note: It is not allowed to cut the heating cable. Therefore, you have to calculate the required mat size before ordering!
Step1: Take measures
Create an installation plan for your electric underfloor heating system and outline the areas of static or permanent furnitures in the room.Electric heating mats/cables can’t be installed under furniture and fixed installed fixtures like tubes, toilets, wardrobe, etc.
Keep a minimum distance of 30cm to walls and conductive parts of the building.
Advice: Keeping a distance of 60cm to walls allows you to place permanent furniture afterwards.
Step2: Measure precisely the area to be heated.
Step3: Choose the right heating mat or cable (our room calculator helps you to choose the right size)
A) Select Heating Mat: Under Tiles or Underwood
Select a suitable mat size. If the mat size differs from the measured area, always choose the next size smaller mat.
Measured area of room: 12m²
Calculated area of heated floor: 8,9m²
Selected heating mat: 8m²
B) Select undertiles heating Cable
Choose the right heating section according to the table below:
| Cable length || Power || Possible area with 6cm |
(200 W/m² spacing)
| Possible area with 8cm |
(150 W/m² spacing)
| Possible area with 10cm |
(100 W/m² spacing)
|11 m||130 W||0.7 m²||0.9 m²||1.3 m²|
|18 m||220 W||1.0 m²||1.5 m²||2.2 m²|
|25 m||300 W||1.5 m²||2.0 m²||3.0 m²|
|39 m||470 W||2.4 m²||3.2 m²||4.7 m²|
|63 m||815 W||3.8 m²||5.0 m²||7.6 m²|
|86 m||1040 W||5.2 m²||6.9 m²||10.3 m²|
|155 m||1800 W||9.3 m²||12.4 m²||18.6 m²|
The distance between the heating loops determine the wattage per m²
6cm = 200 W/m²
8cm = 150 W/m²
10cm = 100 W/m²
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