Underfloor Heating Mats
DEVImat electric underfloor heating is ideal for use in areas such as bathrooms, kitchens and conservatories in both new build and renovation situations. The DEVImat system provides a cost effective method of providing warmed floors.
Completely unseen in the home, DEVImat is easy to size and quick to install, totally safe (CE compliant), and easily controllable.
Why choose a DEVImat electric underfloor heating mat?
- 20 year guarantee with DEVIguard guaranteeing the floor as well as the product
- Open self-adhesive mesh design
- Range of applications available - including timber floor (100W), concrete floor (150W) and high output (200W)
- 4mm mat thickness
- DEVI is a premium well trusted brand
DEVI Floor Guard warranty not only guarantees it's heating systems but also guarantees the floor in the unlikely event that the system cannot be repaired due to a manufacturing fault. Other manufacturers only offer product warranties which do not include the replacement of the flooring.
Follow the step by step instructions below to install your DEVImat system. Example Instruction Step 1 Measure the room and draw a sketch to help you c...
Start by measuring the free surface area, and make a sketch of the room similar to the one pictured on the right. Choose the closest size of DEVImat (always rounding down to the nearest size). S...
Typical wiring layout for connection of DEVImat to 540/550 DEVIreg controller.
Examples of DEVImat installation under tiles on a concrete floor. Examples of DEVImat installation under parquet/wood/vinyl on a concrete floor. Examples of DEVImat installati...
Frequently asked questions
Are electric underfloor heating systems designed to heat a room or just to keep a floor warm?
Underfloor Heating UK DEVI systems are suitable for both heating the entire room or floor only, depending on your requirements.
Poorly insulated areas and in very cold conditions, may require additional heating if you wish to ensure that the room is well heated. Using insulation and a higher heat output system will reduce the need for this.
At Underfloor Heating UK we offer a free expert design service to help you ensure that your Underfloor Heating UK DEVI heating system heats as much or as little as you need.
At what stage of the project should I install my electric underfloor heating?
Generally, we would advise that the property should be airtight before the installation of underfloor heating, but this would also depend on the schedule of your individual project.
Can I install the system myself or do I need an expert?
All of our Underfloor Heating mats come with a full set of installation instructions, providing a simple step by step guide. Most systems can be installed on a DIY basis. But the final electrical connection should be made by a qualified electrician.
Can I retrofit Underfloor Heating into my property?
Installation of underfloor heating is obviously easier within a new build project, but if designed correctly, you can still enjoy the benefits of heating your property using underfloor heat on a retrofit basis.
Can the backlight in stand-by mode be turned off on the DEVIreg Touch thermostat?
Yes it can.
From the main menu, go to Settings > Options > Dim level, and select OFF. With the same navigation, the safety lock, forecast (adaptive function, both start and end), window open and min. floor temperature can also be turned off.
Can underfloor heating be used in a bathroom or a wet room?
Yes, underfloor heating is a great way to warm your home. It’s lovely to walk on and distributes heat evenly around each corner of the room, freeing your walls from radiators, so its not surprising that the bathroom is the most popular place to install electric underfloor heating. However, it is common practice to locate the thermostat on an outside wall (typically on the landing or in the hall) with the floor probe running through the wall into the floor where the heating is installed.
Can underfloor heating be used under carpet?
Underfloor heating can be used with most types of carpet. A self-levelling compound is required and as long as the underlay is not a good thermal insulator (i.e not felt), heat will easily pass through this layer into the carpet itself. The overall Tog value of carpet and underlay combined should not exceed 2.5 with the underlay itself not exceeding 1 Tog.
Do I need a thermostat?
Yes, we include a DEVIreg Touch programmable thermostat in all of our kits. This stylish cutting edge thermostat uses pulse width modulation with optimum start and optimum end programming as well as open window detection to guarantee extremely high temperature control accuracy, ensuring the DEVIreg touch is one of the most efficient Underfloor Heating controls available.
Do I need to change the flooring when I want to install DEVI floor heating in my bathroom?
An easy and clean solution such as DEVImat gives you possibility to leave an old floor without removing it and creating unnecessary mess. The thought of broken up floors and craftsmen running in and out of the house used to be enough for most people to simply drop the idea of having their feet and floors heated.
Today, there is no need to shiver when thinking about floor heating. You are able to get a warm floor without going through the expenses, dirt, and fuss of having to break up the old floor.
The DEVImat is only between 2.3 mm and 4 mm thick, depending on type. It can therefore easily be fitted directly on to your existing floor, whether it is concrete, timber or even an old tiled or terrazzo surface, without needing to cut up the existing floor construction.
The DEVImat is installed within the thickness of the tile adhesives and, therefore, adds no significant height to the floor level. Consequently, there should be no need to reduce door heights, raise skirting boards, etc.
How do I turn off my underfloor heating system?
During the summer months or when it is warm, you may wish to turn off your underfloor heating. All of our thermostats have an on/off switch, which can be used to turn off your underfloor heating system.
I have a floor which is made up of both timber and concrete. Can I use a single heating mat for the floor?
We strongly recommends that each section of floor with a different covering has its own ‘mat’ as well as thermostat since each floor surface has a different maximum temperature limit. We advise to use a thermostat with a floor heating sensor.
Please contact us to discuss the best options for this floor.
What is an underfloor heating floor sensor?
A floor sensor is a device that is connected to the thermostat, and allows the floor temperature to be fully controlled.
The floor sensor is wired back to the thermostat, and connected to the “NTC” terminal. There is no polarity on the cables.
DEVI always recommends installing a floor sensor. The DEVIreg Touch / 550 / 535 / 540 thermostats can be programmed to operate as any 1 of these 3 options:
- Air sensing
- Floor sensing only
- Air & floor sensing
A Floor sensor must be installed when floor or floor/air sensing is chosen. Without a floor sensor, the maximum floor temperature cannot be controlled. A floor sensor is essential with wood, vinyl or carpet floor coverings.
What is the black thing at the far end of the twin conductor mat?
This is the connection at the end of the twin conductor mat where the heating element is connected to the neutral return. This is manufactured within the cable.
Which type of thermostat should I choose for my underfloor heating system?
When choosing a thermostat for your underfloor heating system you need to decide what characteristics you want from your thermostat.
Manual - A manual thermostat will provide total control when using your underfloor heating. Simple to use, they are ideal to manually regulate the temperature for almost any underfloor heating application.
Digital - Programmable digital thermostats are a modern and timeless alternative to the manual thermostat, offering complete control for your underfloor heating. Automatically adjusting the heating to meet your comfort level, regardless of changing weather conditions by measuring the floor temperature and combining it with the air temperature.
Touchscreen - A touch screen thermostat will provide stylish total control of your electric underfloor heating system. Touchscreen thermostats can be combined with an existing system, providing a smart yet simple upgrade with advanced intelligent energy-saving features to cut heating bills without compromising comfort.
Will underfloor heating restrict my choice of floor finish?
The correct floor covering should be carefully considered to ensure heat is not prevented from rising into the room by the floor covering. We offer expert advice on floor covering to ensure the best results without restricting the design of your home.
9 November 2018 09:10
DEVIcomfort 150W/m2 DTIR-150 8.0m2 1200W Underfloor Heating Mat
Excellent Product. Fits Our Requirement Perfectly
Fantastic Service, Quick Delivery. Will use Underfloor Heating UK for all of our underfloor heating projects
Thank you very much for your really great review. I will pass on your positive comments to our sales, technical and administration team and look forward to hearing from you again.
21 October 2018 06:35
DEVIcomfort 150W/m2 DTIR-150 10.0m2 1500W Underfloor Heating Mat
happy about everything , will recommended
Richard Smith, Cheshire
10 October 2018 15:13
DEVIcomfort 100w/m2 DTIR-100 2.0m2 200W Underfloor Heating Mat
Great product at a great price!
24 September 2018 22:20
DEVImat 200W/m2 DTIF-200 6.10m2 1210W Underfloor Heating Mat
The best mat on the market.
Martin Breen, Dublin, Ireland
7 June 2018 11:33
DEVIcomfort 100w/m2 DTIR-100 3.0m2 300W Underfloor Heating Mat
an easy choice for the floor i needed heated