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Frequently Asked Questions

What floor can I use?

A compatible radiant heating system can be found for almost every floor finish. Suitable soils include:

  • Tile, stone and Polished Floor Screed
  • Wood & Engineered Wood Flooring
  • Laminate flooring
  • Vinyl Floor
  • Carpets and Carpet Coating
  • Rubber flooring

Whether you are renovating or choosing a floor for a new construction, contact Ezewarm and we can offer you great tips to help you choose a flooring compatible with our under floor electric heating system.

Flooring in tiles, stone and polished

The best type of floor to use with underfloor heating is tile and stone. The tile and the stone have a high
thermal conductivity, which means that the heat from a floor heating hose or wire is transferred
soil surface quickly. Tile and stone also retain heat and make the system efficient. Because of
excellent thermal properties, tiles and stones are ideal for use with underfloor heating at high temperatures
loss areas such as conservatories. They can be heated up to 29 ° C or higher, giving high heat
output up to 200W / m².

The thickness of the slab and the stone has little impact on the production of heat, but it increases the heat
a little, it is recommended to stick to a maximum thickness of 20 mm when you are looking for a
very reactive system.
Céramique & amp; stone tiles

– The best floor material to be used with underfloor heating
– Excellent heat transfer properties & amp; amp; thin profile
– Easy to clean
– Polished screws
– Highly conductive for fast heating
– Suitable for use with electric underfloor heating and water

Slate and slab
– Naturally very conductive and excellent with underfloor heating
– Heavy-duty floor finish ideal for high traffic areas
Good thermal conductivity, but slower warming


Different types of wood floors have different thermal properties, as such there are differences in their suitability for use with a floor heating system. The more dense and finer the floor panels, the better they conduct heat and are generally more suitable for underfloor heating. Engineered wood is the best type of wood flooring to use with a floor heating system as it works well with changes in soil temperature. Other wood floors can also be used, but with a softer and less dense wood, pay attention to the thickness of the floorboards so that the floorboards do not serve as insulation to block heat. As a rule, for wooden floors, the surface temperature of the floor must not exceed 27 ° C. The heating of the floor changes the moisture content of the wood, so you must choose a wooden floor that can adapt changes in floor temperature without changing the appearance of the floor. Baked wood tends to work best with underfloor heating, but always check with the floor manufacturer
regarding suitability for use with underfloor heating.

Wood flooring for underfloor heating

Underfloor heating can be used with different types of wood flooring, but care must be taken to the thickness of the floor panels so that they do not serve as insulating blocking heat.

Engineered wood
The best wood floor to use with underfloor heating. It works well with changing soil temperature and adapts to changing moisture content
Solid hardwood

Ready for moisture and temperature changes that could cause separation, bulging and crowning. Precautions should be taken when using underfloor heating to ensure compatibility and sufficient heating power – always check with the manufacturer if the floor is suitable for use under the floor
Soft wood
Suitable for use with underfloor heating, but the thickness of the floor panels must be monitored to ensure sufficient heating power
Available in solid wood or engineered wood and most types are suitable for underfloor heating.
Wood is a natural material that is affected by the humidity of the environment around the material. This is why it is important to ensure the correct moisture content of the parquet during installation and the correct heating cycle when installing underfloor heating

Engineered wood can be placed directly on underfloor heating with floating floor or slat / joint system. Panels less than 20 mm thick shall be supported and secured to provide appropriate structural support. It is recommended to use low-grade underlayments when installing boards above the screed.

Laminate Flooring

This synthetic flooring simulates wood and provides a stain and scratch resistant floor finish. This is easy to ask and a cost effective solution. Most laminates are suitable for underfloor heating, but it is advisable to check with the flooring manufacturer before installing the system.

Vinyl floor

Vinyl flooring can be safely used with underfloor heating. Vinyl heats and cools quickly. Vinyl floors are subject to a temperature limit above the floor, usually 27 ° C, which limits the heat output, so they are not recommended in areas with high heat loss such as older conservatories .

Ground sheet

The carpet can be used with underfloor heating, provided that the material of the carpet or underlay does not act as a heat-blocking insulation. The total weight of all materials, including underlayments and coverings, must not exceed 2.5 tog in order to produce sufficient heat. Laminate and carpet flooring is suitable for underfloor heating, but you must ensure that the total of all materials does not exceed 2.5 tog in order for the system to provide sufficient heat.

What size of the spur (electrical connection point) is required?

A 13amp spur is, in most cases, sufficient. But to calculate the exact load in amperes, here is a simple calculation. Take the total area in m² of the heating mat and multiply it by the rated power of the mat, giving the heating power in watts. To calculate the load, simply divide this quantity by the volts. For example, for a mat of 6 m2 ezemat160 watts / m² – 6 (m²) x 160 watts = 960 (watts) divide by 230 (volts) = 4.17 amps.

How many carpets can I install on a thermostat?

To calculate the amount of carpet you can hold on a thermostat:

ezecable = 3600watts of heating cable
ezemat 160 watts = 22sqm on a 16amp thermostat
ezemat 200 watts = 18sqm on a 16amp thermostat
Ezefoil 150 watts = 24m² on a 16amp thermostat

Minimum distance between cables

The minimum installation distance is 700mm – 100mm.

Operating costs

With good insulation and modern building rules, Ezewarm floor heating systems are among the most cost-effective ways to heat your home or office. New projects are being developed, resulting in very low operating costs. You will be able to continue to view the Ezewarm website and social media links to hear news of our exciting developments.

Will it help insulation under the heating mattress?

If the system is to be used as the only form of heating, it is essential that there be insulation under heating. The insulation will make the property more efficient thermally and the heating more efficient. The tile insulation panels are available in thicknesses as low as 10mm, which is ideal for insulation of floor under renovation. Similarly, underfloor heating will be more effective as a stand-alone heating system if the windows are double glazed and there is insulation in the walls / ceilings (as in any other form of heating). Contact us for advice or fax or email your floor plans so that we can estimate if the heating will heat your room.

How long will it take before the ground gets hot?

Depending on the thickness of the tiles, the preheating time is generally between 10 and 15 minutes. With an insulated or wooden subfloor, this heating time can be reduced by half.

Where does the RCD / Timer / Thermostat go on the circuit?

The carpet is laid and the cold wires are fed into a junction box. No matter where you physically repair these items, though you may want to hide them in a closet. If you have a thermostat that reads the air temperature, this should be in the appropriate room. However, if equipped with a floor sensor, this is not necessary.

What happens if the system is not working properly?

Our ezeshield ® warranty does not guarantee that you are protected, regardless of what happens during installation. Once the heater is installed and the floor is installed, the heating mat can not function properly and is covered by our lifetime warranty. If the fault is diagnosed once the ground is down, it can be traced under 1 or 2 tiles. We never had to take a full floor.


Ezewarm can offer a complete installation service. However, installing our underfloor heating is very easy for any handyman or skilled craftsman.
All electrical work must be carried out by a qualified electrician. The preparation is quite simple. Once you have prepared your concrete subfloor, you can install insulation boards (available in thicknesses of 6 mm and 10 mm) directly on the concrete. Then you can put your heating companions on top of the insulation panels and then you can tile right over the heated mats.


It is essential that installers use a good quality adhesive with a flexible additive. If you are installing on a concrete subfloor, a latex compound is ideal. If you are installing on a wooden subfloor, we suggest using a flexible tile adhesive. Both types of subfloors would benefit from being primed (especially important on wooden subfloors). It is also very important to ensure that the adhesives can cure naturally before the heating mats are switched on; this normally takes about two weeks.

Mounting the thermostat - how to connect the cables marked 1 & 2

Two cables marked 1 and 2, direct and neutral, can be connected anyway because there is no polarity.


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