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ThermoSphere Underfloor Heating Membrane / Cable

£10.56£647.28 (inc VAT)

Please note: The membrane and cable are supposed to be ordered as individual items. They are not sold in kit form.

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Description

The ThermoSphere Underfloor Heating Membrane & Cable system (previously known as Vario Pro) combines an uncoupling membrane with a electric heating cable. Please note that they are supposed to be ordered as individual items.

The ThermoSphere Underfloor Heating Membrane is a waterproof, polypropylene membrane matting with square shaped dimples that are designed to form channels that hold ThermoSphere Electric Underfloor Heating Cables at variable spacing depending on the required heat output – 2 dimples for 195W/m² output, 3 dimples for 135W/m² output. This matting has an anchoring fleece on the underside to provide a strong bond to the substrate below. This matting forms an uncoupling layer between the tiles and the substrate – this neutralises the stress caused by different rates of expansion and contraction in a tiled floor and minimises the risk of tile delamination and cracking.

The ThermoSphere Underfloor Heating Membrane provide a number of additional benefits – the studs and fleece backing in the membrane allow water vapour beneath it to escape effectively. This means you can save time by tiling over a substrate that is not fully cured. The stud structure also provides efficient load distribution for the tiled surface by transferring the load to the subfloor evenly – this reduces the risk of cracks so is recommended for high-traffic areas.

The ThermoSphere Underfloor Heating Cable is unique in the UK – it features TwistedTwin construction that neutralises cable stress and results in a supple, durable, quality cable. This cable is designed for installation into the ThermoSphere Underfloor Heating Membrane, and can be laid out in a completely custom layout that best suits your walkable/exposed floor area, as it does not need to be laid underneath fixed items such as toilets, cabinets, baths, etc. We recommend using a ThermoSphere Thermostat with this cable. ThermoSphere Underfloor Heating Cables are available in the following sizes to suit a range of area sizes:

Cable Length in metres
12 metres
18 metres
25 metres
31 metres
37 metres
50 metres
61 metres
75 metres
100 metres
125 metres
150 metres
200 metres
Area Coverage (130W/m²)
1.15 m²
1.73 m²
2.31 m²
2.88 m²
3.46 m²
4.62 m²
5.77 m²
6.92 m²
9.23 m²
11.54 m²
13.85 m²
18.46 m²
Area Coverage (195W/m²)
0.8 m²
1.15 m²
1.54 m²
1.92 m²
2.31 m²
3.08 m²
3.85 m²
4.62 m²
6.15 m²
7.69 m²
9.23 m²
12.31 m²
Total Cable Output (W)
150W
225W
300W
375W
450W
600W
750W
900W
1200W
1500W
1800W
2400W

These cables cannot be cut or joined, but more than one cable can be joined to the same thermostat, as long as the total system load/draw is under 3600W/16A (the limit of all ThermoSphere Thermostats) – which equates to a floor heating area of approx. 23m².

Installation:
The ThermoSphere Underfloor Heating Membrane & Cable system is easy to install. We recommend laying Tile Backer Board onto the floor area first to provide a thermal insulation layer underneath the membrane. This drastically reduces downward heat loss and speeds up the initial warm up time of the cable, but is not mandatory. Fix the uncoupling membrane to the entire floor area using a suitable adhesive (we recommend using Ardex AF200 or Mapei Ultrabond VS90 Plus for wooden substrates such as floorboards, any flexible cement-based tile adhesive is suitable for concrete, screed, tile backer board substrates) and then lay the ThermoSphere Heating Cable into the grooves in the matting until you’ve covered the desired area/s that you want to heat. Tiles can then be laid directly over the installation using a flexible tile adhesive.  Levelling compound can also be poured over the membrane to fully encapsulate the installation prior to tiling.

Product Datasheet Installation Guide

Click here to view this product on the manufacturers website.

Additional information

Weight N/A
Option

1m² Membrane Unit, 15m² Membrane Roll, 12m Heating Cable (1.15m²), 18m Heating Cable (1.73m²), 25m Heating Cable (2.31m²), 31m Heating Cable (2.88m²), 37m Heating Cable (3.46m²), 50m Heating Cable (4.62m²), 61m Heating Cable (5.77m²), 75m Heating Cable (6.92m²), 100m Heating Cable (9.23m²), 125m Heating Cable (11.54m²), 150m Heating Cable (13.85m²), 200m Heating Cable (18.46m²)