DEVI Underfloor Heating Kits
Our complete DEVI underfloor heating kits for timber, concrete based floors and high output, come with everything you need to complete a DEVI underfloor heating installation.
Why choose Devi underfloor heating kit?
- 20 year guarantee with DEVIguard guaranteeing the floor as well as the product
- Open self-adhesive mesh design of the mat
- Range of kit 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.
Our DEVI underfloor heating kits include the following components:
- DEVImat self adhesive underfloor heating mat
- Choice of thermostat
- Gaffer utility tape
- Spray adhesive
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 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 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.
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.
Ratings based on data collected by third party reviewing platform.
16 November 2019 12:12
DEVImat 200W/m2 DTIF-200 8.80m2 1760W Underfloor Heating Mat
Good quality and easy to install - DIY.
DEVImat 200w/m2 DTIF-200 8.80m2 1715w Underfloor Heating Kit + DEVIreg Smart Thermostat (Polar White)
9 September 2019 14:41
DEVIcomfort 100W/m² DTIR-100 1.0m² 100W Underfloor Heating Kit
I have had Devi underfloor heating for several years. When the bathroom tiles had to be replaced I had no hesitation in choosing Devi as I know the product to be excellent and that if needed the customer service is good.
14 May 2019 10:05
DEVIcomfort 150W/m² DTIR-150 1.5m² 225W Underfloor Heating Mat
Excellent product. Easy to install.
22 April 2019 23:33
DEVIcomfort 150W/m² DTIR-150 7.0m² 1050W Underfloor Heating Mat
Does what it says. Works fine.
9 November 2018 09:10
DEVIcomfort 150w/m² DTIR-150 8.0m² 1200w Underfloor Heating Kit
Excellent Product, Just What We Wanted
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.
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 1220W Underfloor Heating Mat
The best mat on the market.
DEVImat 200w/m2 DTIF-200 6.10m2 1210w Underfloor Heating Kit + DEVIreg Smart Thermostat (Polar White)
The best underfloor electric heating mat on the market with a 20 yr guarantee.
Martin Breen, Dublin, Ireland
7 June 2018 11:33
DEVIcomfort 100W/m² DTIR-100 3.0m² 300W Underfloor Heating Kit
This product did the job it was intended for - easy to install and use.
DEVIcomfort 100W/m² DTIR-100 3.0m² 300W Underfloor Heating Mat
an easy choice for the floor i needed heated
24 May 2018 12:33
DEVIcomfort 100W/m² DTIR-100 2.5m² 250W Underfloor Heating Kit
As in section 1 lack of installation information.
DEVIcomfort 100W/m² DTIR-100 2.5m² 250W Underfloor Heating Mat
Mat does not appear to be as sticky as a previous product
Your service was quick and efficient. My concern was with the DEVI product information and installation information. I have previously fitted a DEVI mat however the installation information was minimal and no explanation given for the pack content. Fortunately I remembered most of the installation steps. The one that I didn't was answered by DEVI customer help. My point is that the product is good but the installation information is poor as is the online information. If DEVI ask you can feed back this information to them.