Installation Guide

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Installation with an Uncoupling Membrane
- All heating cable, including the connection connecting the heating cable to the non-
heating cable must be installed in the membrane and covered with thinset cement;
- The cable must not be installed under furniture attached to the oor where air cannot
circulate: toilet, washbasin, vanity, wardrobe, bath, shower, etc.;
- The cable should never be installed in a wardrobe, wall, cabinet or ceiling;
- The heating cable must never be installed over an expansion joint;
- The minimum installation temperature is 5°C (40°F);
- Approved spacings are: 2 and 3 alternate cone spacing; 3 cone spacing; 3 and 4
alternate cone spacing and 4 cone spacing. Alternately, 3 cone spacings is standard.
- An independent grounded circuit must be installed for each heating cable.
- The maximum straight length for a cable line is 12 ft. (3.6 m). Cable’s have to make a
detour (U-shaped) around a membrane cone and every 12 feet thereafter. (See photo 1).
Photo 1
Photo 2
The cold joint between the heating and non-heating section of the cable system is bigger in
diameter than the membrane slot. To make room, please cut off a piece of the membrane
about 1 inch by 12 inch min. Lay the cold joint directly on the sub-oor, within the opening,
and x it with tape or hot glue. (See photo 2).
If you are short of cable follow our technical information for the different scenarios of
spacing. Note that the wider you space the cables, the less heat there will be. The standard
spacing is at 3 cones in the membranes.
Buffer zones are places where it is not absolutely
necessary to heat. Use these areas if you have a
slight excess of cable.