Underfloor Heating Mats 150w

£23.99£506.99 + VAT


  • FROM £23.99 + VAT
  • Dual Teflon Coating (non PVC)
  • IPX7 Waterproof Rating
  • Secondary Or Primary Heat
  • Suitable For Most Floors
  • Compatible With SF Decoupling
  • Enhanced With XPS Insulation
  • Or Tile Backer Boards
  • Low Profile – 2mm Heat Element
  • Largest Mat In UK – 16sqm
  • Free Technical Assistance
  • After Sales Support
  • Lifetime Warranty
  • Next Day Delivery Service
IMPORTANT! All our electric underfloor heating systems must be run via suitable 'Fused Spurs'. Please consult an electrician if in doubt.
LARGE AREAS: Multiple mats or cables can be combined to cover any sized area for sizes greater than 12sqm.
Insulation is especially important on concrete floors however we would highly recommend it in any situation. XPS Boards(Adhesive) or Tile Backer Boards(Screws & Washers)
SKU: RMAT-150W Categories: , , , , Tags: ,

Electric Underfloor Heating Mat 150w/m2

Underfloor Heating Mat 150w/m2 can be installed beneath most floor types (not just Tiles). They are suitable to be used as a secondary or primary heat source under Tiles, LVT, Karndean or low tog Carpet.

We offer a wide range of mat sizes and loose wire cables. Our largest 150w mat is available at 16sqm, which is supplied as a continuous mat - 0.5m in width x 32m in length - The largest heat mat in the UK.

Uniquely, both our R-Mats and R-Cables, are patented with a dual teflon coating (approx. 2mm in thickness), the strongest and most advanced low profile heating element available. They also have an IPX7 Waterproof rating, making them safe for any room.


The heat mats can be laid directly on to a solid wood or concrete sub floor. It is highly recommend insulation be installed, prior to the under floor heating to aid efficiency and the response of the heating kit.

Although both our 150w and 200w can usually heat a room and floor on their own, insulation is an integral part of the complete underfloor kit. The thermal boards drastically reduce running costs and the warm up time of the heating. For new builds, extensions or old problematic floors, we also offer a range of decoupling membranes, preventing possible lateral movement of the floor.

The XPS, Tile backer thermal boards and final floor tiles, should be fixed with a flexible adhesive. We can even supply a two part specialist self levelling compound, the choice of the professional, which is used to embed the heating before flooring is laid. A 3mm depth of self level or adhesive is required to embed the heating, before Tiling.

The R-Mats and R-Cabs, can also be laid under LVT, Karndean or low tog carpet (maximum 2 tog), when embedded in a 10-12mm depth of self levelling compound.

Unsure what type of system you need?

Please give our technical team a call or email.

150W vs 200W Underfloor Heating Mats - What is better option for you?

The key difference between 150w and 200w electric heating is the warm up time. Essentially, the 200w mats or loose wire cables will reach set temperature quicker. Therefore, serving better as a primary heat source than the lower wattage option. It is the recommendation in high heat loss areas like outhouses, conservatories or external colder rooms. The 200w option should always be used if no insulation can be installed, caused by height restrictions or floor thresholds.

The 150w option can still be used as a primary or sole source of heating, as long as over 80% of the available floor is covered. It is vitally important that insulation is installed when opting for the lower wattage, to aid the efficiency and response, as well as increasing the U values and thermal retention in the room.

Importantly, 20sqm of 150w heating can be powered off a 13amp / 240v fuse supply. This option tends to be a better solution in larger areas, when the heating is being retro fitted (walls already plastered/rendered) with electrical supplies set in place. The 200w option, would either be separated into 2 zones (powered from 2 thermostats), or alternatively powered off a 25amp or 40amp relay.


Technical Support, Fitting and Warranty Information

For your peace of mind, our heat mats and loose cables are covered with our Lifetime Guarantee. We are here to assist and advise, before or after a purchase has been made. We can help determine the best solution and coverage of heating you require for any project.

Our technical team have over 50 years combined knowledge and expertise, in the installation and supply of electric heating. Therefore, there is no question or query we wouldn't be able to answer.

In the unlikely event the heating develops a fault or stops working after installation, we offer free technical support over the phone. In most instances, we can help determine how this may have been caused, resolving most issues with you over the phone.

If an onsite repair needs to be done, we have a specialist team who can locate and repair faults under any floor. Repairs can usually be rectified quickly and efficiently, with minimal disruption to your installation or daily routines.

In essence, electric heating is very basic how it operates, the only mechanical/moving parts of the kit being the thermostat controllers. Therefore, when installed correctly and the heating signed off by a qualified electrician, your product is covered with our Lifetime Guarantee.

We are here to help, whatever the situation or query, 24/7 and 365 days a year.

The Roma Heating Team

Roma Heating Underfloor Heating Mat Systems

Underfloor Heating Mat Features

  • 150w/sqm output / Dual Core
  • IPX7 Waterproof Rating
  • Teflon insulated with earth shield heating element
  • Ultra thin & durable heating element with high thermal capacity
  • Supplied with fixing tape
  • Only 2mm thick 
  • Easy and quick to lay
  • Pre-spaced wire (to determine wattage) attached onto tough self adhesive fiberglass mesh backing
  • Lifetime warranty
  • Full fitting instructions
  • Technical Free Phone Help Line
  • Next working day delivery service (when ordered before 12pm)


Technical Specifications

  • Operating Voltage 230/240V - 50Hz
  • 150w/sqm Wattage/Output
  • Double insulated Element
  • Earth connection
  • Fully sheathed and earthed elements
  • Mat width 0.5m (largest mat 16sqm / 0.5m x 32m)
  • 2.5m long cold / connection tails
  • 3mm long Floor sensor probe / 10k Ohms thermistor (supplied with all thermostats or purchased individually)
  • Cable depth 2mm

Highly Recommended With This System

Roma Heating Underfloor Heating Design Service
At Roma Heating we offer a free design service to make the whole process a little easier.

If you would like a free quote or just a little more information please feel free to get in touch with us on 01803 316131.

Our time and advice is free and we can recommend the best underfloor heating system for you.

Additional information


, , , , , , , , , , , , , , , , ,

2 reviews for Underfloor Heating Mats 150w

  1. Rob Prescott

    I have used Roma for a number of years, their products are great, customer service & technical support are excellent. I don’t get my kits anywhere else.

  2. Anthony

    Just on my 6th room upgrade using Roma products. This company is first class in every area of the transactional process. Thank you Richard [Wood] always helpful, polite and knows his subject inside and out!

Only logged in customers who have purchased this product may leave a review.