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150W/M² Electric Underfloor Heating Mat
From: £18.99 Inc. VAT
£15.83 Ex. VAT
Our 150W/m² underfloor heating mat is a 3mm heating cable on a self-adhesive mesh, for laying under tile and stone. It’s fine for most rooms as long as it’s laid on insulation boards, and it’s sold by area from 0.5m² to 30m², on its own or with a thermostat. Mesh mats come with a lifetime warranty when they’re installed correctly.
150W/M² Electric Underfloor Heating Mat
Next Day Delivery & Lifetime Guarantee
The 150w/m2 Electric Underfloor Heating Mat provides fast, efficient heating and can be used as a primary or secondary heat source when covering over 80% of the floor area.
Quick to install, the mat simply rolls out, making it ideal for kitchens, hallways, bathrooms, and other regularly shaped rooms.
The heating cable can also be removed from the mesh for free-hand installation around obstacles. Each mat is 0.5m wide with lengths available up to 32m (16m²).
For improved heat output, especially on concrete floors—use an insulation layer beneath the system.
Features:
- Low-Profile 3mm Heating Mat
- Suitable for Domestic & Commercial Use
- IPX7 Waterproof Rated
- Works as Primary or Secondary Heating
- Compatible with Most Floor Coverings When Embedded
- Works with SF Decoupling
- Compatible with XPS Boards & Tile Backer Boards
- Install with Flexible Adhesive or Self-Levelling Compound
- Free Technical Support
- Lifetime Guarantee
- Next-Day Delivery
UFH Mat Build Up:
Start by fixing insulation boards to the subfloor using 2–4mm of flexible adhesive. Lay the heating mat on top, then either tile directly or cover with self-levelling compound before tiling.
Finish with a 4–8mm bed of flexible tile adhesive, depending on tile size and thickness.
Typical floor build-up:
- 2–4mm Flexible Adhesive
- 6mm Insulation Board (10mm & 20mm options available)
- 3mm 150W Heating Mat
- 4–8mm Tile Adhesive Layer
- Tiles (10mm in this example)
Living Heat offers a free underfloor heating design service to help you plan your installation with confidence.
For a free quote or expert advice, call +44 (0)1803 316060 or email sales@livingheat.co.uk.
Working out a budget? Our electric underfloor heating cost guide covers the mat, thermostat, boards, fitting and running costs for a typical bathroom.
Is a 150W mat right for your room?
Choose 150W/m² when
The room is a typical bathroom, kitchen or hallway, the mat is going down on insulation boards, and you want a warm floor alongside your existing heating. It can also be the main heat when it covers over 80% of the floor.
Choose 200W/m² when
The floor will be the main heat in the room, or the room loses heat quickly, like a conservatory. The price difference is small, so unless your electrics limit the load, it’s worth considering.
View the 200W/m² matChoosing the size and thermostat
Mat size
Measure the open floor, not the whole room. The mat never goes under a bath, toilet or fitted unit. Aim to cover around 80 to 85% of what’s left, so 5m² of open floor takes a 4m² mat.
Thermostat
Pick one when you choose your size: the M1 dial, M5 digital, T5 touch screen or Wi5 WiFi, or no thermostat if you already have one.
Compare thermostatsInsulation
Laying the mat on insulation sends the heat up into the room, so it warms faster and costs less to run. Tile backer boards are the trade standard under tiles.
View tile backer boardsFitting it in a bathroom? See our bathroom underfloor heating guide.
150W underfloor heating mat FAQs
Is a 150W heating mat enough to heat a room?
For most rooms, yes, as long as it’s laid on insulation boards. It can be the main heat source when it covers over 80% of the floor. For a conservatory or a room that loses heat quickly, choose the 200W/m² mat.
What’s the difference between a 150W and 200W mat?
The output per square metre. A 200W/m² mat puts out a third more heat, so it warms the floor faster and suits rooms that need more heat. The 150W/m² mat uses less power per hour at full output.
Can I lay the mat around obstacles?
Yes. Cut the mesh to turn the mat at walls and around obstacles, but never cut the heating cable. The cable can also be taken off the mesh and laid by hand in awkward spots.
How thick is the mat?
3mm, so it goes into the tile adhesive bed without raising the floor much.
Can I fit it myself?
On a basic installation, yes. A qualified electrician must make the final connection and wire in the thermostat.
What does it cost to run?
It depends on the area, your tariff and how long it runs. Our electric underfloor heating cost guide shows the cost per hour for each mat size.
Technical Information
Product Overview
Product Name: UFH Electric Heating Mat
Brand: Living Heat
Heating Type: Electric underfloor heating mat
Application: Under-tile floor heating system
Electrical & Thermal Performance
Heat Output: 150 W/m²
Heating Function:
Suitable for most rooms when laid over insulation
Suitable for secondary heating
For primary heating or rooms with high heat loss, choose the 200W/m² mat
Heating Response: Fast, efficient heat-up
Mat Construction & Dimensions
Mat Thickness: 3 mm (low-profile design)
Mat Width: 0.5 m
Available Lengths: Up to 32 m
Maximum Coverage per Mat: 16 m²
Heating Cable:
Pre-fixed to mesh
Cable can be removed from mesh for free-hand installation around obstacles
Installation Method
Installation Type: Adhesive or self-levelling compound installation
Installation Areas:
Kitchens
Hallways
Bathrooms
Other regularly shaped rooms
Recommended Subfloor Preparation:
Install over insulation for improved heat output, especially on concrete subfloors
Floor Compatibility
Compatible Floor Coverings: Tiles and stone; laminate, wood, LVT, vinyl and carpet when embedded in around 12mm of self-levelling compound
Compatible Systems & Accessories:
SF Decoupling Matting
XPS Insulation Boards
Tile Backer Board Insulation
Typical Floor Build-Up
Example installation build-up (thicknesses as stated):
2–4 mm flexible adhesive (bonding insulation boards)
6 mm insulation board
Alternative options: 10 mm & 20 mm
3 mm 150 W/m² heating mat
4–8 mm flexible tile adhesive
Tiles (10 mm in example)
Safety & Compliance
Ingress Protection Rating: IPX7 (waterproof)
Usage Rating: Suitable for domestic and commercial installations
Warranty, Support & Delivery
Warranty: Lifetime guarantee
Technical Support: Free technical support
Delivery: Next-day delivery
Design Service: Free underfloor heating design service available
