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Underfloor Heating Mats

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

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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.

Articles

We take time and care to research relevant product information and report on current news for our product range that we believe you may find useful. Click on an article to read more.

List of DEVI Underfloor Heating Mat Resistances

12/05/2015

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 ...

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Introduction to DEVI Matting Underfloor Heating

04/02/2015

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...

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How To Install DEVI Matting Underfloor Heating Guide

11/09/2014

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...

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How to Choose your DEVI Matting Underfloor Heating

21/07/2014

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...

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Typical Wiring for DEVI Matting Electrical Connections

15/01/2014

Typical wiring layout for connection of DEVImat to 540/550 DEVIreg controller.

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Example DEVI Matting Underfloor Heating Floor Constructions

03/01/2014

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...

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Frequently Asked Questions

We make every effort in answering your questions. Below is a list of those questions we are frequently asked. Click on a question to expand its answer.

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...

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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.

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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.

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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 ...

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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...

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Feefo Reviews Click to view our independent Feefo review profile

Read our independently sourced Underfloor Heating Mats reviews to see what our customers think about these products.

Customer Product Rating Customer Experience
Nick Hepher
25 February 2018 07:17
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Bad
Product Rating Product Rating Product Rating Product Rating Product Rating
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
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
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
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
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
Service was second to none. Helped me every way possible
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
06 February 2017 09:00
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
09 January 2017 10:03
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
09 July 2016 08:27
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
09 May 2016 14:07
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
04 April 2016 07:11
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
08 February 2016 14:56
Underfloor Heating UK Review
Good
Product Rating Product Rating Product Rating Product Rating Product Rating
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
05 December 2015 09:35
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Good
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
Excellent
“Excellent fast service”
Excellent fast service
Thank you very much for your feedback.

Customer Service Manager
Trusted Customer
08 July 2015 23:33
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
Excellent
Excellent
Excellent
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
08 July 2015 10:10
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
02 July 2015 23:05
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
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
Underfloor Heating UK Review
Excellent
Product Rating Product Rating Product Rating Product Rating Product Rating
Excellent
“Very efficient”
Very efficient
Thank you for your feedback.

Customer Service Manager
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