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FAQ’s
 
Which Undertile Heating Systems do I need ?

 
Heating Mats:

Mats are available in outputs of 150 or 200 w/m² and a large range of sizes allows you to select the ideal underfloor heating system whatever your room dimensions.
Mats carry the heating elements already spaced out and fixed onto a strong fibreglass mesh with a uniform spacing to give evenly distributed heat. The mats are 500mm wide and most installations can be completed in a short time due to the ease of rolling out the matting side by side. Heating elements are thin to provide a low profile in the floor.

150w/m² or greater is suitable for use beneath tile and stone coverings in any room in a well insulated property. 200w/m² underfloor heating mats offer a quicker warm up time than 150w/m² and are suitable for use beneath tile and stone coverings, where they can provide primary heating in most rooms, including conservatories, especially when used in conjunction with a 6mm layer of Floorheatpro Premium XPS insulation board prior to installing the heating mat. In rooms with fixed units such as in kitchens and bathrooms we recommend 200w/m². 
 
Heating cable:
The loose heating cable is rated at 10 w/m and is the same cable as used in the heating mats. The cable comes on a reel and is dispensed from the reel directly onto the floor with evenly spaced runs of cable to achieve the required watts density (w/m²) on the floor. To simplify installation Floorheatpro supply a similar range of cable to sizes to WarmUp.
 
WarmUp were the first company in the UK to introduce the loose cable system to the underfloor heating market in a form packaged for retail. That was many years ago and still today they have a similar range of cables available, comprising of just four (4) lengths with the maximum length at 80 metres (800 watts).

The reason for the success of the loose cable system was the ability to provide the installer with layout and installation flexibility, especially in smaller awkward areas with obstacles, such as en-suites and shower rooms. It was never found necessary to have a wider range as WarmUp proved and whenever the installer wanted to cover a larger area with loose cable he could always install dual circuits (e.g. 2 x 82m). Two (2) x 82m long cables would be suitable to cover an area of over 10m² to give a rating of 160w/m². Loose cable requires more time to install than a mat and is normally avoided in larger areas.
 
Why choose FloorheatPro ?
If you need conservatory heating mats, undertile heating mats or underlaminate heating mats, you need look no further.Floorheatpro are the UK’s leading premium brand of underfloor heating with over 20 years track record, worldwide approvals and a lifetime guarantee. Floorheatpro is sold in over 370 outlets across the UK, including electrical wholesalers, tile outlets, bathroom shops, plumbers and builders merchants. Complete underfloor heating kits are available, or you can purchase mats and thermostats individually. Click here to view a video showing and describing the contents of our undertile heating mat kits.

How do I select the correct heating kit ?
It is important you do not select a mat or cable that is too large for your room. The heating element cannot be cut therefore always select a mat or cable size that is around 10% less than the actual floor area you are heating.
User friendly installation instructions are supplied to ensure the installer has the information required to complete a satisfactory installation compliant with the Regulations. The cold lead power connection is 100% steel armoured for safety and 3 (three) metres long.

The length of connection lead is important as it helps the installer, adding extra design flexibility when laying out the mat on the floor, and provides sufficient connection lead to reach the electrical supply position / thermostat.
Be careful ! Avoid mats with shorter connection leads ( 2m or 2.5m) and with no steel armouring. Always check before purchasing.

The maximum single mat size is 12m² so for many installations two or more mats will be required. This will make it even more important to ensure you have mats with 3 (three) metres long connections leads in order to make the job easier for the installer.
 
Can you connect more than 1 mat to a thermostat?
Yes you can, but please observe the following: The maximum single mat size is 12m² so for many installations two or more mats will be required. This will make it even more important to ensure you have mats with 3 (three) metres long connections leads in order to make the job easier for the installer.

PROTOUCH is rated at 16 amps and FloorheatPro advise you to observe this rating and recommend a maximum loading of 3,600 watts can be connected direct to each control. Two or more mats used in the same control zone can be wired together electrically in parallel – to simplify installation make sure the mats have 3 metres long connection leads. Ask your installer as he will understand this important point. Should you wish to control a larger area with a single thermostat and the amperage exceeds the limit of the thermostat a contactor can be supplied to work in conjunction with the thermostat. If in doubt please consult Floorheatpro for help.
 
How wide are the mats ?
The mats are 500mm wide and most installations can be completed in a short time due to the ease of rolling out the matting side by side. For example, a 10m² mat would be supplied on a roll 20 metres long. The mat is rolled out across the room, at the end of the room you cut and flip it over and roll back alongside the mat the other way. Heating elements are thin to provide a low profile in the floor. Mats carry the heating elements already spaced out and fixed onto a strong fibreglass mesh with a uniform spacing to give evenly distributed heat.
 
Can a FloorheatPro heating system be the sole source of heat ?
Yes, they certainly can, but watch out for those older properties with little or no insulation. Each case is different and depends on the 'u' values, room size, air movement, volume and position of the room. If in doubt, FloorheatPro offer a free design service – please call our Free Help Line: 0800 211 8355

Generally, well insulated new properties present no problem, but you may still wish us to carry out a heat loss calculation.

Total heat (only source of heat) is only possible if the room heat loss can be replaced, and in rooms with limited floor area, such as a small bathroom, it may be physically impossible to install sufficient heat in the confined space. However, underfloor heating will warm and dry your bathroom floor, and dry floors are hygienic and safer.

On existing concrete floors in a well insulated building, and assuming there is not an issue with floor levels, we recommend a 200 w/m² undertile heating mat system is installed on top of a 6mm layer of Floorheatpro Premium XPS insulation board. Blue Tip notes refer. When laying 200w/m² directly onto a wooden base a 2-3mm covering of tile adhesive should be used to cover the base first. Alternatively, providing your wooden floor is rigid and reinforced you can still apply Floorheatpro Premium XPS insulation board.
 
200w/m² underfloor heating mats offer a quicker warm up time than 150w/m² and are suitable for use beneath tile and stone coverings, where they can provide primary heating in most rooms, including conservatories, especially when used in conjunction with a 6mm layer of Floorheatpro Premium XPS insulation board prior to installing the heating mat
 
What wattage do i need?
150w/m² or greater is suitable for any standard room in a well insulated property.
200w/m² underfloor heating mats offer a quicker warm up time than 150w/m² and are suitable for use beneath tile and stone coverings, where they can provide primary heating in most rooms, including conservatories, especially when used in conjunction with a 6mm layer of Floorheatpro Premium XPS insulation board prior to installing the heating mat. In rooms with fixed units such as in kitchens and bathrooms we recommend 200w/m².  

How does the controller work ?
The PROTOUCH touchscreen programmable controller is a combined time clock and thermostat.
A feature of PROTOUCH is the ability to set different temperatures at different times of the day, known as comfort levels. This means the controller can be set to suit the occupants of the property and temperatures adjusted to individual preferences. Each room / system should have its own controller to allow each room to have settings at different temperatures and time.

PROTOUCH can be used to sense the floor temperature only, air temperature only, or it can be set to control both the floor and air temperature at the same time.
Further energy savings come from lower overall thermostat settings which homeowners choose naturally. When both air temperature and radiant transfer are compensated for, homeowners feel comfortable at room temperatures that are lower.

PROTOUCH is rated at 16 amps and FloorheatPro advise you to observe this rating and recommend a maximum loading of 3,600 watts can be connected direct to each control. When the heating system is being connected to an existing domestic ring main circuit via a fused switch spur always check carefully. The reason for this advice – a domestic ring main circuit and fused switch spur is normally rated at 13amps and we want you to avoid overloading the circuit and to keep your installation within the regulations.

A safe way to overcome any problems is to provide an independent circuit to feed your underfloor heating. All systems with a total loading of 3Kw or more must have an independent power feed supplied from the mains to avoid any problems with overloading.

Always consult your electrician
  
Do we require floor insulation ?
Always consider insulation as a thermal barrier prior to installing your underfloor heating and tiles on a concrete floor – floor insulation will provide greater response to temperature change meaning faster heat up and lower running costs. Please read the Blue Tip notes on our Premium XPS insulation board. No matter how much insulation is installed below the top screed of a concrete floor, a 6mm layer of our Premium XPS insulation board installed on top of the screed will provide a thermal barrier and improve heating efficiency. Insulating floors in this way produce a real payback on your running costs.
 
Cement finished tile backer boards are only needed to strengthen a floor which is unnecessary on a concrete floor – always use 6mm thick Premium XPS board as a thermal barrier when you have no floor height restrictions

Concrete floors without a thermal barrier will absorb around 30% of the heat energy downwards until stabilisation of the installed heat energy takes place. This is normally not a problem because as a minimum, most floors will have insulation below the top screed, but the time taken for the heating to stabilise will be longer than a floor with Floorheatpro Premium XPS insulation board placed directly under the heating. If you do have floor height restrictions then QuickHeat is our dual purpose thermal paint and this will prime and insulate the floor at the same time. QuickHeat has been specifically formulated for use with underfloor heating systems and proven to save downward heat loss of up to 20%
 
What floor finish is suitable with FloorheatPro systems ?
Most floor finishes can be used, providing the floor has been prepared correctly and the manufacturer of the floor finish confirms its suitability for underfloor heating.

When you are renovating a floor and the floor finish is tiled, stone, wood or laminate it is essential to install the correct materials to achieve the best results. If you need further advice please call our Free Help Line 0800 211 8355
The Floorheatpro foil heating mat system is ideal for laminate and engineered wood floors without the need for a screed. The Floorheatpro undertile heating mat system is ideal for tile and stone floors.
 
How much will it cost to run my underfloor heating system ?
This is always a key question.
It depends on several factors, but when the insulating properties of the floor and building are in accordance with the latest building regulations, such as in new homes, apartments and some conservatories, running costs are usually very low and are a positive factor.

Insulating your floor properly is a good start to improve efficiency and keep running costs down, whether it is a new build or existing floor renovation.

How often you set the system to operate and at what temperature are key factors. Zoning the heat room by room, setting the programmable controller to operate when you want and at the temperature you want is in your control with a FloorheatPro heating system.

Increasing comfort and, at the same time, saving money on utility bills is a winning combination.
  
What kind of adhesive ?
Always use a flexible tile adhesive and grout. Several good adhesive products are available and your local builders merchant or tile supplier will be able to offer advice.

Not all adhesives are the same. Underfloor heating companies are not builders so our advice is to talk to the experts about your requirements and they will offer the best product for your particular needs.
If in any doubt, please contact us on Free Help Line: 0800 211 8355.

Do I need an electrician ?
All electrical connections must be carried out by a qualified electrician in accordance with the 17th Edition IEE regulations BS7671:2001 and Part P of the Building Regulations
 
How safe is my underfloor heating system ?
Very safe !
The quality of your underfloor heating system is your insurance for many years of trouble free operation. Ask yourself why do so many people make reference to quality issues – because not all systems are the same !!

Our products will last, DURABILITY is what we offer. That is one reason why we can give you a Lifetime Guarantee.
All products are designed and tested in accordance with international standards, such as IEC and CENELEC standards, and meet the requirements of the European low voltage directive. Production has been approved in accordance the environmental policy standard ISO 14001. Manufacturing has been compliant with the ISO9000 quality mamagements systems for over 20 years.

Heating cables are 100% screened, waterproof and totally safe for installation in wet rooms and bathrooms.
Floorheatpro heating systems are approved by UL (Underwriters Laboratories - USA), SEMKO (Sweden) and FIMKO (Finland).

Will my system require any maintenance ?
No, your system requires no maintenance.
Also, FloorheatPro heating systems are 100% waterproof

How warm will my floor be ?
FloorheatPro supply systems to give you a comfortable warm floor surface. It is worth noting a floor surface at 27ºC is the optimum for comfort, and to achieve room warming by radiant heat.
Underfloor heating can be effectively mounted on any flat surface. The only requirement is the surface should be sufficiently large enough. The larger the surface, the lower the actual surface temperature required. A wall radiator may have a surface temperature of 65°C while a 27°C floor will do the same job.
Radiant energy will heat the surfaces of all objects which are in direct line of sight from the floor; that means all walls, ceilings, chairs, tables, or people which can be "seen" by the radiant energy. Air coming in contact with these surfaces will also heat up gently.
BSI have published guidelines on floor surface temperature for health and comfort reasons. The BSI Code of Practice CP:1018 – Electric Floor Warming Systems, specifies a maximum floor surface temperature of 27ºC.
  
Which Underwood Heating System do I need ?

The Floorheatpro foil mat is ultra thin to provide a low profile in the floor and are primarily for use under laminates, engineered wood, and other floating floors. Floors must be fitted floating and must not be glued or nailed down. Tongue and groove wood floors that are not click together must be glued along the joints. No metal fixings are permitted. Most wood flooring manufacturers have approved flooring products suitable for underfloor heating systems. Always check with the manufacturer.  
 
Our foil mats carry the heating elements sandwiched between layers of reinforced aluminium with a uniform spacing to give evenly distributed heat. The mats are 500mm wide and most installations can be completed in a short time due to the ease of rolling out the matting side by side. The mats can be cut and turned with ease to run in strips side by side.
 
The mat rating is 140w/m² which provides a warm floor without any damage to your wooden top floor.
 
How do I select the correct heating kit ?
It is important you do not select a mat that is too large for your room. The heating element cannot be cut therefore always select a mat size that is around 10% less than the actual floor area you are heating.

User friendly installation instructions are supplied to ensure the installer has the information required to complete a satisfactory installation compliant with the Regulations. The cold lead power connection is 100% steel armoured for safety and 3 (three) metres long. The length of connection lead is important as it helps the installer, adding extra design flexibility when laying out the mat on the floor, and provides sufficient connection lead to reach the electrical supply position / thermostat. Be careful ! Avoid mats with shorter connection leads ( 2m or 2.5m) and with no steel armouring. Always check before purchasing.

The maximum single mat size is 12m² so for many installations two or more mats will be required. This will make it even more important to ensure you have mats with 3 (three) metres long connections leads in order to make the job easier for the installer.

A large range of sizes allows you to select the ideal underfloor heating system whatever your room dimensions.
 
Can you connect more than 1 mat to a thermostat?
Yes you can, but please observe the following: The maximum single mat size is 12m² so for many installations two or more mats will be required. This will make it even more important to ensure you have mats with 3 (three) metres long connections leads in order to make the job easier for the installer.

PROTOUCH is rated at 16 amps and FloorheatPro advise you to observe this rating and recommend a maximum loading of 3,600 watts can be connected direct to each control. Two or more mats used in the same control zone can be wired together electrically in parallel – to simplify installation make sure the mats have 3 metres long connection leads. Ask your installer as he will understand this important point. Should you wish to control a larger area with a single thermostat and the amperage exceeds the limit of the thermostat a contactor can be supplied to work in conjunction with the thermostat. If in doubt please consult Floorheatpro for help.

What maximum thickness of wood floor can be installed on top ?
18mm is the maximum thickness we recommend to ensure you obtain the most from the system

What is the total thickness it will raise my floor?
The total thickness will be 8mm plus the wood floor thickness. Using LAMFOAM insulation at 6mm thick and the heating mat is only 2mm thick. No other layers are required like vapour barriers or adhesives etc.
Be careful ! Avoid 3mm thick insulation as the underlay as this will be inferior.
LAMFOAM sheet is 6mm thick and serves three purposes – 1) floor insulation, 2) sound deadening and 3) underlay for the boards

What type of floor insulation will I need ?
Floor insulation is necessary, as it forms part of a system. Use LAMFOAM insulation at 6mm thick. No other layers are required like vapour barriers or adhesives etc. Avoid 3mm thick insulation as underlay of 3mm will be inferior.
LAMFOAM sheet is 6mm thick and serves three purposes – 1) floor insulation, 2) provides excellent sound deadening properties and 3) underlay for the boards

Is the underlaminate heating suitable for wet areas?
The Floorheatpro under wood heating system is suitable for wet areas and is fully 17th edition compliant, providing you follow the installation instructions provided

Can furniture be placed on the finished wood floor ?
Most free standing furniture is fine but we do not recommend installing the heating under any fixed units or fitted wardrobes etc,
Avoid placing bean bags or thick rugs etc on the floor as these can cause some localised hot spots in the floor

How important is earth continuity ?
It is important to maintain the earth continuity in the heating mat after it has been cut on site and installed into the room in strips side by side. To achieve this, aluminium foil tape is supplied with each kit and this needs to be stuck across any mats that have been cut, to ensure the mats have earth continuity.
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