Rated as excellent
By 100s of our customers
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.
Related Articles
List of DEVI Underfloor Heating Mat Resistances
May 12
Concrete Based Floors Single conductor mat. Coverage m2 Normal Minimum -4% Maximum +9% 1.0m 705.00 676.80 768.50 2.0m 353.00 ...
Introduction to DEVI Matting Underfloor Heating
Feb 4
The DEVImat DTIF is a self adhesive mesh, with ultra thin cable pre-attached. It comes in a full range of sizes, from 0.5m-12m and are available in both 100W and 150W per m2 for installation onto b...
How To Install DEVI Matting Underfloor Heating Guide
Sep 11
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...
How to Choose your DEVI Matting Underfloor Heating
Jul 21
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 for DEVI Matting Electrical Connections
Jan 15
Typical wiring layout for connection of DEVImat to 540/550 DEVIreg controller.
Example DEVI Matting Underfloor Heating Floor Constructions
Jan 3
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 ad...
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 c...
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 re...
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 op...
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 surp...
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 thr...
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 a...
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 an...
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 sy...
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. W...
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 &l...
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 ...
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 bes...
Customer Reviews
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!
First Class !!!!
Great service - very knowledgeable staff on the helpline - advised of exactly which item was compatible as a replacement for an obsolete stat, and prices are very competitive too. Also delivery was perfect as arranged. All in all excellent, and will definitely use again.
Trusted Customer
24 September 2018 22:20
DEVImat 200W/m2 DTIF-200 6.10m2 1210W Underfloor Heating Mat
The best mat on the market.
Excellent service
Excellent service quick and easy. Stock the best products at the best price will definitely order future products from them .Highly recommend them
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
Fantastic product, fantastic people to deal with.
My original query was answered very quickly and the follow up supply of goods was equally excellent. Great customer service.
Fantastic, thank you for the great review of our service.
Bruce Shearman
24 May 2018 12:33
DEVIcomfort 100w/m2 DTIR-100 2.5m2 250W Underfloor Heating Mat
Mat does not appear to be as sticky as a previous product
Reducing installation information is not a good idea!
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.
Regards
B.S.Shearman
Nick Hepher
25 February 2018 07:17
DEVIcomfort 150W/m2 DTIR-150 3.0m2 450W Underfloor Heating Mat
What’s not to like? Quality, price and delivery all good
Top people
First class on price and delivery. Highly recommended
Thank you for the excellent review and the fantastic recommendation, we appreciate it greatly.
Trusted Customer
26 December 2017 22:16
DEVIcomfort 150W/m2 DTIR-150 10.0m2 1500W Underfloor Heating Mat
They sold us three zones but only two thermostats. Therefore cannot control heat in one zone. The Devi Matt floor was fitted by an electrician and an experienced carpenter laid the floor. However as I write this the heat only works in 25% of the room. Will likely have to lift the newly laid floor and will be writing to their customer services
DEVIcomfort 150W/m2 DTIR-150 12.0m2 1800W Underfloor Heating Mat
They sold us three zones but only two thermostats. Therefore cannot control heat in one zone. The Devi Matt floor was fitted by an electrician and an experienced carpenter laid the floor. However as I write this the heat only works in 25% of the room. Will likely have to lift the newly laid floor and will be writing to their customer services
DEVIcomfort 150W/m2 DTIR-150 2.5m2 375W Underfloor Heating Mat
They sold us three zones but only two thermostats. Therefore cannot control heat in one zone. The Devi Matt floor was fitted by an electrician and an experienced carpenter laid the floor. However as I write this the heat only works in 25% of the room. Will likely have to lift the newly laid floor and will be writing to their customer services
DEVIcomfort 150W/m2 DTIR-150 0.5m2 75W Underfloor Heating Mat
They sold us three zones but only two thermostats. Therefore cannot control heat in one zone. The Devi Matt floor was fitted by an electrician and an experienced carpenter laid the floor. However as I write this the heat only works in 25% of the room. Will likely have to lift the newly laid floor and will be writing to their customer services
Customer service experience
They sold us three zones but only two thermostats. Therefore cannot control heat in one zone. The Devi Matt floor was fitted by an electrician and an experienced carpenter laid the floor. However as I write this the heat only works in 25% of the room. Will likely have to lift the newly laid floor and will be writing to their customer services
James Henderson
21 November 2017 16:41
DEVIcomfort 100w/m2 DTIR-100 3.0m2 300W Underfloor Heating Mat
Service was second to none. Helped me every way possible
Customer service experience
Service was second to none. Helped me every way possible
Fantastic, thank you for the great comments of our service.
Paul Clarkson, Darlington
20 August 2017 11:49
DEVIcomfort 150W/m2 DTIR-150 12.0m2 1800W Underfloor Heating Mat
Early Days yet but install procedure easier than expected
Superb Service , Price and Technical information.
Information perfect , Smooth Transaction all first class.
Thank you for the great comments, we appreciate the feedback and the first class review of our service.
Rick Paslawski
27 June 2017 13:37
DEVIcomfort 100w/m2 DTIR-100 2.5m2 250W Underfloor Heating Mat
Easy to lay, seems good quality
Reliable Seller with Great Prices
Great service with good prices
Thank you for taking the time to write such great feedback, we appreciate your comments.
Sarah Bailey
13 March 2017 07:18
DEVIcomfort 100w/m2 DTIR-100 0.5m2 50W Underfloor Heating Mat
The product is exactly what I wanted.
Excellent service by Underfloor Heating UK
Really helpful. Great follow up. Very fast service.
Thank you for leaving great feedback and rating both our service and your new DEVIcomfort Underfloor heating mat and accessories as excellent.
Simon Bydlinski
6 February 2017 09:00
DEVImat 200W/m2 DTIF-200 7.00m2 1385W Underfloor Heating Mat
Great service and quick delivery
Excellent service by Underfloor Heating UK
Great seller
Thank you very much for reviewing us as excellent, we appreciate your comments greatly.
Trusted Customer
9 January 2017 10:03
DEVIcomfort 100w/m2 DTIR-100 1.0m2 100W Underfloor Heating Mat
Excellent
Very good
Consistently reliable. Always helpful
Thank you for your excellent review of our service, we appreciate it very much.
Trusted Customer
27 November 2016 09:27
DEVIcomfort 100w/m2 DTIR-100 1.5m2 150W Underfloor Heating Mat
Excellent
Fast next day delivery, good range.
Fast next day delivery, good range.
Many thank for your feedback and rating us as excellent.
Tracey Morgan
Customer Service Manager
Trusted Customer
26 November 2016 07:32
DEVIcomfort 100w/m2 DTIR-100 4.0m2 400W Underfloor Heating Mat
Excellent
I have ordered around 12 heat mats from you, I ordered one mate the wrong size…
I have ordered around 12 heat mats from you, I ordered one mate the wrong size because something changed in the room but you changed it for me very quickly with no fuss
Thank you
You are very welcome. We pride ourselves on our customer service excellence and are very pleased that we were able to help you so efficiently.
Tracey Morgan
Customer Service Manager
Trusted Customer
25 October 2016 12:28
DEVIcomfort 150W/m2 DTIR-150 1.0m2 150W Underfloor Heating Mat
Always use Devi, better quality than alternatives and quicker to install.
Helpful and friendly as always
Helpful and friendly as always
That's very kind of you.
Thank you very much for reviewing us as excellent.
Tracey Morgan
Customer Service Manager
Trusted Customer
17 September 2016 14:43
DEVIcomfort 150W/m2 DTIR-150 3.5m2 525W Underfloor Heating Mat
Excellent
Very quick delivery as always
Very quick delivery as always
Thank you very much for your great feedback. Our FREE next day delivery is very popular- allowing our customers to get our products fast.
Tracey Morgan
Customer Service Manager
Trusted Customer
9 July 2016 08:27
DEVIcomfort 150W/m2 DTIR-150 3.0m2 450W Underfloor Heating Mat
So great to lay
Great service as always
Great service as always
Thank you very much for your great comments, we appreciate it very much.
Customer Service Manager
Trusted Customer
28 June 2016 20:44
DEVIcomfort 150W/m2 DTIR-150 2.0m2 300W Underfloor Heating Mat
Excellent
I fit wet rooms and have used your company to purchase heat mats for the last…
I fit wet rooms and have used your company to purchase heat mats for the last six or seven they have all been delivered on time with not a single problem.
I also like the fact that you call after every delivery to make sure that it arrived on time nice touch
Thank you very much for your wonderful comments, your review is very much appreciated and we look forward to working with you again!
Customer Service Manager
Trusted Customer
9 May 2016 14:07
DEVIcomfort 100w/m2 DTIR-100 3.0m2 300W Underfloor Heating Mat
Excellent
excellent service and product
excellent service and product
Thank you for your excellent review of the DEVIcomfort Underfloor heating kit, it is appreciated very much.
Customer Service Manager
Trusted Customer
4 April 2016 07:11
DEVIcomfort 100w/m2 DTIR-100 1.5m2 150W Underfloor Heating Mat
Excellent
Excellent under floor heating system.
Excellent under floor heating system.
That's fantastic, thank you for your great review.
Customer Service Manager
Trusted Customer
11 March 2016 08:49
DEVImat 200W/m2 DTIF-200 7.80m2 1665W Underfloor Heating Mat
Wouldn't use any other.
Excellent website, easy ordering system, very knowledgeable staff. Have since re-used them.
Excellent website, easy ordering system, very knowledgeable staff. Have since re-used them.
Thank you very much for your fantastic review, we really do appreciate your comments.
Hannah Boother
Customer Service Manager
Trusted Customer
8 February 2016 14:56
DEVIcomfort 150W/m2 DTIR-150 7.0m2 1050W Underfloor Heating Mat
Good
The service was not good. They could not accept my credit card because they put…
The service was not good. They could not accept my credit card because they put down the wrong name! Also they have taken the £20 charge for the return of the mat twice!
thanks for your feedback. As far as I can see you unfortunately incorrectly ordered the wrong size mat online and then I understand there was a credit card issue with the product going to a different address? I would of course be happy to discuss this with you in greater detail.
Many thanks.
Hannah Boother
Customer Service Manager
Trusted Customer
5 December 2015 09:35
DEVIcomfort 100w/m2 DTIR-100 5.0m2 500W Underfloor Heating Mat
Warms the floor - super.
Excellent pricing and super fast delivery. What more could you possibly need?!
Excellent pricing and super fast delivery. What more could you possibly need?!
We appreciate you taking the time to review our products and our service.
If you require any assistance in the future, please do not hesitate to contact us and we will endeavour to provide the same excellent service.
Hannah Boother
Customer Service Manager
Trusted Customer
20 September 2015 16:54
DEVIcomfort 100w/m2 DTIR-100 1.5m2 150W Underfloor Heating Mat
Very good product
Fantastic service and delivered bang on time
Fantastic service and delivered bang on time
That's really great to hear, thank you for taking the time to write such fantastic comments.
Customer Service Manager
Trusted Customer
18 September 2015 02:29
DEVIcomfort 150W/m2 DTIR-150 7.0m2 1050W Underfloor Heating Mat
Excellent
good
good
Thank you for rating us as excellent, your review is very much appreciated.
Customer Service Manager
Trusted Customer
14 September 2015 08:15
DEVIcomfort 150W/m2 DTIR-150 3.0m2 450W Underfloor Heating Mat
Excellent
All very good, works extremely well
All very good, works extremely well
We are pleased that you are happy with your new underfloor heating. If you need any future assistance please contact us on 01473 559087.
Hannah Boother
Customer Service Manager
Trusted Customer
22 August 2015 23:29
DEVIcomfort 100w/m2 DTIR-100 5.0m2 500W Underfloor Heating Mat
Good
delivered next day at midday for free, first rate service, thank you.
delivered next day at midday for free, first rate service, thank you.
Thank you very much for your review. Our free next day delivery is very popular for its reliability and efficiency.
Customer Service Manager
Trusted Customer
26 July 2015 19:05
DEVIcomfort 100w/m2 DTIR-100 9.0m2 900W Underfloor Heating Mat
Excellent
Excellent fast service
Excellent fast service
Thank you very much for your feedback.
Customer Service Manager
Trusted Customer
8 July 2015 23:33
DEVIcomfort 100w/m2 DTIR-100 10.0m2 1000W Underfloor Heating Mat
Excellent
DEVIcomfort 100w/m2 DTIR-100 7.0m2 700W Underfloor Heating Mat
Excellent
DEVIcomfort 100w/m2 DTIR-100 8.0m2 800W Underfloor Heating Mat
Excellent
DEVIcomfort 100w/m2 DTIR-100 9.0m2 900W Underfloor Heating Mat
Excellent
Excellent service, arranging a fast delivery to Jersey
Excellent service, arranging a fast delivery to Jersey
Thank you for you comments. We love the Harmoni 50 touchscreen thermostat and we are glad that you are pleased with it too.
Hannah Boother
Customer Service Manager
Trusted Customer
8 July 2015 10:10
DEVIcomfort 100w/m2 DTIR-100 1.5m2 150W Underfloor Heating Mat
Excellent
very polite service.
very polite service.
Thank you very much for your great review, it is very much appreciated.
Customer Service Manager
Trusted Customer
2 July 2015 23:05
DEVIcomfort 150W/m2 DTIR-150 4.0m2 600W Underfloor Heating Mat
This product was exactly as I expected it to be.
No problem at all to install.
Competitive pricing, no problems with payment, timely delivery with goods in excellent condition. A service…
Competitive pricing, no problems with payment, timely delivery with goods in excellent condition. A service second to none! What more could you ask for?
I am really pleased that we were able to offer great service to you, and that you are completely satisfied with your DEVIreg 530 floor sensing thermostat.
Thank you for reviewing us.
Customer Service Manager
Trusted Customer
14 June 2015 19:13
DEVIcomfort 100w/m2 DTIR-100 1.5m2 150W Underfloor Heating Mat
As above
I had the product I think the next day and was delighted that they called me…
I had the product I think the next day and was delighted that they called me to make sure I had received my purchase.
Thank you for taking the time to review us, we do appreciate it very much.
Customer Service Manager
Trusted Customer
12 June 2015 17:39
DEVIcomfort 150W/m2 DTIR-150 9.0m2 1350W Underfloor Heating Mat
As always prompt service and a great product
As always prompt service and a great product
As always prompt service and a great product
Thank you for fantastic feedback, we appreciate you taking the time to do this.
If you need any advice or assistance with setting up your radiator, please call us on 01473 559087.
Customer Service Manager
Trusted Customer
12 June 2015 17:01
DEVIcomfort 100w/m2 DTIR-100 5.0m2 500W Underfloor Heating Mat
Excellent
Very efficient
Very efficient
Thank you for your feedback.
Customer Service Manager