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Underfloor heating installation

There are two different types of underfloor heating, electric or hot water.

We decided to have underfloor heating installed in our house as it was being built because this is considered to be a much more efficient form of heating compared with normal radiators and we chose to have the hot water type heating.

This was all fitted for us by a specialist company, we gave them sets of our floor plans along with details of what floorings we would have in each room such as carpet, tiles, wood etc and then they designed, built and installed the whole system for us.

Firstly a special thick insulation board is placed on top of the concrete floor throughout the whole house.
Then, plastic clips are anchored into the insulation board and the hot water pipes are then clipped into place.

 Underfloor pipework being installed

Each room has its separate feed so that of the temperature for every room can be controlled independently and there is one continuous pipe which runs from the heating "manifold" around the floor of the specific room and then back into the manifold again, outgoing is red for hot water and the return is blue.  

 Manifold with pipework completed

The underfloor system is designed room by room depending upon the flooring type. Ceramic floor coverings are the best heat conductors so for rooms with that flooring type then the pipework is further apart and the overall length of pipe for the room will be shorter so requires less hot water and is therefore more efficient. Wooden flooring is the least heat conductive flooring type so requires much more pipework laid closer together to heat up the flooring.

Once all of the pipework has been installed and the whole system has been pressure tested then it is all covered and leveled off with 4 inches of a special floor screed which looks like concrete but is much smoother.