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ProWarm™ 100w Electric Underfloor Heating Loose Cable Kit

SKU: ProWarm-100w-Electric-Underfloor-Heating-Loose-Cable-Kit

From £42.39

The best-selling loose cable kit by ProWarm™. Kit components included only when you purchase a thermostat with the loose cable.

Cable Coverage Guide

Find your room size from the coverage section in the description, based on your planned cable spacing, and get all the technical data for that particular size.
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When you buy a ProWarm™ cable and thermostat, as part of one of our kits, you get the rest of the kit accessories thrown in for free!

ProWarm™ Electric Underfloor Heating cable kits provide a reliable and effective underfloor heating system that can work with tiles and many other floor coverings (installation methods differ, please call us for advice).

Each ProWarm™ underfloor heating system and thermostat comes with a Lifetime Warranty. Please note this Warranty does not cover HeatMiser and AUBE thermostats as these brands are covered by their own manufacturer’s warranty.

Full Technical Support is provided free of charge by our team of Fully Qualified Electricians and for total peace of mind each system comes with the amazing CableSafe™ Guarantee – cut through your heating cable during installation and ProWarm™ will replace your cable free of charge.

Please ensure all Safety Guidelines are adhered to during and after installation of this product.

ProWarm™ Underfloor Heating kits contain everything you need to install them – all packed and supplied in one box complete with full colour instructions.

ProWarm™ Underfloor Heating Systems. Visit for more details.


Electric underfloor heating kits contain the following items:

underfloor heating mat

ProWarm™ Underfloor Heating Cable Drum
(or 2 drums if over a 180 linear metres)

Our underfloor heating loose cable systems are the ideal solution for those complicated floor areas where a mat is not suitable, our systems are all rated at 10w per linear meter, this means the closer you space the cable the higher the output.

When purchasing any Thermostat & Kit, you also receive the items below, at no extra cost!

Digital Thermostat

Choice of programmable digital thermostat with floor temperature probe. All Prowarm™ digital thermostats come with a Lifetime Warranty*.

Floor Primer

Prowarm™ Ultraprime is a high performance primer – increasing bond strength and flexural performance whilst reducing water penetration. It has been designed to be a universal priming/sealing agent and is suitable for a variety of building substrates including plaster, timber, brick and block work.

High Quality Roller

For applying floor primer to sub-floor

Adhesive Tape

To assist in holding mat or cable in position when installing

Coverage m2 Drum Sizes
5cm spacing26cm spacing6.5cm spacing7.5cm spacing10cm spacingPowerCable LengthDrum 1Drum 2
0.6m 20.7m 20.75m 20.9m 21.15m 2115w11.5m11.5m
0.7m 20.8m 20.9m 21.1m 21.4m 2140w14m14m
0.8m 21m 21.1m 21.3m 21.7m 2170w17m17m
1.1m 21.4m 21.5m 21.7m 22.25m 2225w22.5m22.5m
1.75m 22.1m 22.3m 22.7m 23.5m 2350w35m235m2
2m 22.4m 22.7m 23.1m 24m 2400w40m240m2
2.4m 22.9m 23.2m 23.7m 24.8m 2480w48m248m2
2.8m 23.4m 23.7m 24.3m 25.6m 2560w56m256m2
3.2m 23.9m 24.2m 25m 26.4m 2640w64m264m2
3.5m 24.3m 24.6m 25.4m 27m 2700w70m270m2
3.8m 24.6m 25m 25.8m 27.6m 2760w76m276m2
3.8m 24.6m 25m 25.8m 27.6m 2760w76m276m2
4.1m 24.9m 25.4m 26.3m 28.2m 2820w82m282m2
4.6m 25.6m 26m 26.9m 29.2m 2920w92m292m2
5.2m 26.3m 26.9m 28m 210.4m 21040w104m2104m2
5.7m 26.9m 27.6m 28.8m 211.4m 21140w114m2114m2
6.2m 27.6m 28.3m 29.6m 212.5m 21250w125m2125m2
7.2m 28.8m 29.6m 211.2m 214.5m 21450w145m2145m2
7.2m 28.8m 29.6m 211.2m 214.5m 21450w145m2145m2
8m 29.7m 210.6m 212.3m 216m 21160w160m2160m2
9m 210.9m 212m 213.8m 218m 21800w180m2180m2
10.4m 212.6m 214m 216m 220.8m 22080w208m2104m2104m
11.4m 213.9m 215.2m 217.6m 222.8m 22280w228m2114m2114m
12.5m 215.2m 216.7m 219.3m 225m 22500w250m2125m2125m
13.5m 216.4m 218m 220.8m 227m 22700w270m2145m2125m
14.5m 217.5m 219m 222.3m 229m 22900w290m2145m2145m
15.3m 218.2m 220m 223.1m 230.5m 23050w305m2160m2145m
16m 219.5m 221.3m 224.5m 232m 23200w320m2160m2160m
17.3m 220m 223m 225.4m 234.5m 23400w345m2180m2160m
18m 221.8m 224m 227.7m 236m 23600w360m2180m2180m


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