WELCOME TO

INSTRUCTIONS FOR DIY INSTALLATION OF UNDERFLOOR HEATING

For tile, wood, screed & carpet floors

www.diyunderfloorheating.co.za

HOW TO CHOOSE THE CORRECT SIZE HEATING ELEMENTS FOR YOUR ROOM SIZE

ROOM SIZE KW HESSIAN UNDERFLOOR HEATING COMPOUND

5m2 500w 3m2 10kg

7,5m2 750w 5m2 15kg

10m2 1kw 6,5m2 20kg

12m2 1,2kw 8m2 25kg

15m2 1,5kw 10m2 30kg

20m2 2kw 13m2 40kg

25m2 2,5kw 15m2 50kg

30m2 3kw 20m2 60kg

35m2 3,5kw 22m2 70kg

HOW TO PROCEED WITH INSTALLATION

Before commencing, follow the below mentioned points:

1.  Floor surface needs to be clean, ( plain concrete), if not and there is existing tiles, all tiles needs to be removed, if it is too much labour and too much of an inconvenience?

2.  Existing tiles needs to be treated with bonding liquid or be roughened by chipping into the tiles.

3.  If you are going to install on top of existing tiles, ensure that the tiles are not loose. This method is not advisable.

4.  With under floor heating, the best method is to install correctly.

Now draw a plan layout of your room on paper first according to the below mentioned instructions, this will make it easier to do the installation.

Ensure the floor surface is clean.

60 – 70cm away from the wall, chop nails into the floor 6 - 7 cm apart at both ends of the room facing towards plug point or pre-prepared box for the thermostat.

* Indicates nails

Indicates distance from walls

Power point

STEP 2

The heating element has a red and black wire at the beginning of the coil, which is the power wire.

Pull these apart and from the power point, starting with either red or black wire, wind the heating element around the nails that has been previously chopped in the floor, ending at the power point and thermostat with either red or black wire.

The red and black wire gets connected to the provided thermostat.

STEP 3

Once the heating elements have been strung,

Place the provided Hessian on top of the heating system,

Dampen the hessian with a sprinkling of water in order to promote the absorption of Underfloor Heating Compound. The mixture consistency should be a creamy smooth paste and lump free.

The Underfloor Heating compound readymix will be spread on top of the Hessian.

This serves to glue the heating system to the floor.

You may now carefully remove the nails.

STEP 4

The heating system installation needs to be left to dry overnight.

You may then proceed to lay your floors as per normal.

PRECAUTIONS NEED TO BE TAKEN

Do not walk on the system while it wet.

Once it has dried, Do not work with sharp objects on the system.