Electric Underfloor Heating

living Heat instillation guide for Heat Film under wood and laminate floors.

Junction Box Installation

If multiple mats are to be installed within one room or to one thermostat controller a junction box should be fitted below the desired thermostat location. This will allow all the connection tails be run back to one location ready to be wired up.

Laying 6mm soft thermal acoustic insulation underlay. The sub floor must be level clean are suitable for the desired floor covering. Role your underfloor heating world (living Heat) insulation out over the sub floor making sure to cover the total floor area where the wood or laminate floor covering is to be installed including unheated areas. A contact spray adhesive can be used or a double sided tape to hold the insulation in place and aid the installer if required but is not a necessity. The diagram below shows the soft insulation being installed with the floor sensor / probe fixed in place.

 

Floor Sensor Installation

Once you have an idea of the mat layout within your room you will first need to install the floor sensor supplied with your thermostat. Cut a small channel into the insulation layer to allow the floor sensor / probe to be laid into. The channel should be located under a heated area, (heat mat to be laid over this channel in next stage), ideally ending under a the copper bus bar towards the outside of a centrally located heat mat.

Laying Underfloor Heating World (living Heat) film mats. If you have requested a proposed mat layout from Living Heat you can simply hand this to the installer or follow the plan yourself. Alternatively make sure you unroll and identify each mat. Start at one side of the room rolling the mat from the non-connection end of each mat (end with no connection tails), ideally towards the wall the thermostat is located. Each mat can be held in place by using a suitable adhesion tape such as gaffa tape along the ends and side of the mats.

 

Once the mats have been laid and fixed in place the connection tails should be run back to the thermostat / junction box location. The connection ends and cold tails can be pressed into the insulation by scoring the insulation and firmly pressing the tails / ends into the scored insulation. It is advisable to tape over the connection tails and cold ends to keep them held in place during the instillation of your wood / laminate floor. The diagram below shows the two ways mats can be connected back to the thermostat. (Mats must always be connected in parallel never in series).

 

Installing the Vapour Barrier.

Once the underfloor heating world (Living Heat) mats have been laid and fixed in place the vapour barrier is ready to be laid over the top of all the under floor heating mats. The vapour barrier must fully cover all under floor heating mats, (it is not a necessity to cover the whole floor area only the actual heat mats themselves). If necessary the vapour barrier can be taped around the edges to hold it in place.

Underfloor heating world (Living Heat) heat film is designed for use directly under all wood and laminate floors. Please note however it is advisable to regulate the floor temperature using the floor probe with the thermostat set to floor only. This is because all wood and laminate floors have different max permitable temperatures and thus the flooring supplier should be consulted first to confirm the max permitable floor temperature the heating can be set to. This tends to be approximately 28oc for most wood and laminate floors.