2. CONCRETE FLOOR HEATING
The system of heating cables can be the main (the only) heating source of
premises but also can supplement other ways of heating - water or electric panels,
replaces. Then we shall arrange system of the “heated oors”.
The heating cables are installed in a free space of oor (not covered with steady
equipment freezer, cooker, kitchen furniture, bath, washing machine, etc.), in 35 mm
layer of the concrete. Using CTAV-18 cable which has 18 W/m power, the distance
between the cable loops (C-C) is 5-15 cm. Such a layer of concrete and the distance
between cable loops is important for evenly spread of heat and helps to avoid the
uctuations of temperature.
The thickness of oor can be reduced by pouring self-levelling compound over
the cables CTAV-18, CTAV-10 or installing cables directly in the layer of tiles adhesive.
The distance C-C is simply to keep using mounting tape (the distance is 25 mm).
The mounting tape is laid in 50-100 cm distance. The consumption of tape is 1-2
m/m2. Tape is xed by nails or glued.
3. FLOOR HEATING BASE ARRANGEMENT
If you want to have the oor giving comfort and heat to your house, rst of all
you have to arrange the base for heating oor (Pic. 1 and Pic. 2).
Picture 1. New oor heating installation
1. Base
2. Thermo insulation
3. Concrete layer
4. Thermostat sensor (in sealed
pipe)
5. Heating cable (in layer of adhesives or self-
levelling compound)
6. Damp insulation (in bathrooms)
7. Layer of adhesives or self-levelling compound
8. Tiles or other ooring material
It is very important that construction of heating oors have good thermo
insulation, otherwise big part of heat will be lost. Especially this is important when
unheated cellar or ground is under the oor.
The thermo insulation of vertical edges of heating zones (outer walls) secures
the heat does not ow to the sides, walls or unheated areas. Besides, the vertical
insulation absorbs horizontal expansion of oors because of heating.
ATTENTION! Heating cable cannot touch the thermo insulation material.
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