Frequently Asked Questions (Foil Heating Mats)

We make every effort to answer your questions. Below is a list of questions we are frequently asked. Please check these before contacting us.

• How much does it cost to run?

• Consider an average room size of 10m².
  The heated area is approximately 80%, or 8m².

  In the case of the 150W mats, when the heater is ON, the hourly consumption is 150W times 8m², or 1200 Watts per hour.

  A properly insulated room, controlled by the recommended energy efficient thermostats, will operate at a duty cycle of 20% to 25% (meaning 20% to 25% of the time the heater will be ON, and the rest of the time OFF).
  In this circumstance the average electricity consumption for heating the room will be 240 - 300 Watts per hour.

  The actual hourly cost depends on your local electricity rates.

• Should I use insulation?

• The use of insulation must be used in all installations. Not only will it protect the cable in the system but it will reduce warm-up time of the floor from over an hour to only a few minutes. This will provide you with a greater level of comfort and result in reduction of electricity cost.

  Floor Type
  Wood	Palziv (6mm uncompressed)
  Suitable Carpet	Palziv (6mm uncompressed)

• What is Palziv Insulation?

• Palziv is an insulating material designed for under laminate/ engineered wood and Hessian- backed carpet . It is manufactured from cross-linked closed celled polyethylene foam. Palziv has excellent thermal insulating properties due to its low U-value. Palziv is water repellent - does not rot or go mouldy. Furthermore, it has a sound insulating effect, creating a "quieter" floor to walk on. Palziv is easy to install and are supplied from Rayotec in rolls of 10m² and 20m² with a depth of 6mm.

• Is it safe to use in Wet areas?

• Yes, the cables are earthed.

• How easy is it to install?

• The Rayoflex foil electric underfloor heating mats are extremely easy to install.

  Under laminate, engineered, wooden or Hessian- backed carpeted floors, the installer lays the heating mats on the specified insulation. The wood/ carpet (with underlay) flooring is then laid directly onto the mats in the usual manner.

  A qualified electrician is to complete the connection between the heating mats and the electrical circuit. No time-consuming calculations, labour or additional materials are required.

• What mat sizes are available?

• Available Mat Sizes	Please note that all mat sizes have a standard width of 0.5m
  Length (m)	2.0	3.0	4.0	6.0	8.0	10.0	12.0	14.0	16.0	18.0	20.0
  Area (m2)	1.0	1.5	2.0	3.0	4.0	5.0	6.0	7.0	8.0	9.0	10.0

• What if my room is larger than your largest available mat?

• Several mats can be connected in parallel to a junction box. If the amperage in one room exceeds the amperage of the thermostat, then either a contactor will need to be installed by your electrician or another thermostat will need to be purchased.

• Can I cut the mats?

• You can cut the mesh but not the heating cable.

• What is the thickness of the cable?

• The cable is 2mm thick.

• How long is the cold lead of the mat?

• The cold lead is 4m in length.

• Can I lay the mats under heavy objects/ fixtures?

• No - the mats can only be located in the available free space. There must be some form of air gap between any furniture and the floor, so the heat may escape.

• Does it provide a primary heat source?

• In most cases in a new build / well insulated property, the system can provide primary heating. In cases where homes have single glazing, vaulted ceilings, poor insulation levels or less than 80-85% cable heating mat coverage, the system may need additional heating from another source.

• What if my mat is a little too big for the room?

• Once the packaging has been opened we are unfortunately unable to refund/exchange the mat. It is therefore important to order the correct size - if you are worried, please send drawings to one of our consultants who will be more than happy to design your system and send the correct items.

• What kind of floor coverings can I use and do I have any limitations?

• Covering	Thickness/ Tog
  Carpet Carpet Underlay	Tog 1.7 or less Tog 0.8 or less
  Wood	Max thickness 18mm

• Can the cable be damaged?

•  Accidents do happen, try wear soft shoes when working with electric UFH and keep sharp objects away during the installation procedure!

• How safe are the mats?

• The mats are manufactured and tested in full conformity with IEC (International Electrotechnical Commission) Global Quality Standards.

• What is the warranty of this system?

• The heating mats come with a 16 year manufacturers warranty.