Best Underfloor Heating — 150W (2026)
9 underfloor heating matching power “150W”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Underfloor Heating UK (2026) guide.
Currently unavailable
Pros
- 150W/m² output suits tile and stone floors under most flooring types
- Twin conductor cable reduces the risk of a single break disabling the mat
- Covers a generous 10.0m² room in one kit
Cons
- Thermostat sold separately on some mat-only kit sizes
- Professional electrician needed for the final connection
#2 Pick
Warmup Underfloor Heating StickyMat 150W/m² Electric Heating Mat, 3m² (SPM3)- 150W
£182.99
Pros
- Self-adhesive mat rolls out quickly across regularly shaped floor areas
- Compatible with tile, vinyl, timber and carpet floor finishes
- Does not significantly raise floor height — good for refurbishments
Cons
- Thermostat sold separately on the mat-only kit
- Professional electrician needed for the final connection
£219.99
Pros
- Full kit bundles the sticky mat with fixings ready to install
- Suits refurbishment projects without significantly raising floor height
- Established Warmup brand with UK-wide installer support
Cons
- Thermostat may be sold separately depending on kit size chosen
- Professional electrician needed for the final connection
Currently unavailable
Pros
- Amazingly thin 3mm mat suits kitchens, bathrooms and conservatories
- 150W/m² rating suits concrete sub-floors
- Covers a generous 10.0m² area in one mat
Cons
- Thermostat sold separately from the mat-only kit
- Professional electrician needed for the final connection
£322.99
Pros
- Even heat distribution across the whole floor surface
- No significant increase to floor height once installed
- 20-year manufacturer guarantee
Cons
- Thermostat sold separately from the mat-only kit
#6 Pick
Klima 10m² Electric Under Floor Heating Mat Kit, 150W/m² Output for Tiled Floors- 150W
£269.99
Pros
- Can be cut and shaped to suit any room dimensions
- 150W/m² rating suits tiled floors as a primary heat source
- Covers a generous 10m² area in one kit
Cons
- Thermostat sold separately on the mat-only kit
- Professional electrician needed for the final connection
#7 Pick
ProWarm Electric Underfloor Heating 150W Mat, 4.0m² (Mat Only)- 150W
Currently unavailable
Pros
- 4.0m² coverage suits medium bathrooms and kitchens
- Thin cable design keeps floor build-up to a minimum
- Trusted UK underfloor heating brand with wide size range
Cons
- Thermostat and installation kit sold separately
#8 Pick
Electric Underfloor Heating Mat Kit 1/m² - 150W/m² with M1 Manual Thermostat- 150W
£45.98
Pros
- Manual thermostat keeps the kit price low for budget refurbishments
- 150W/m² output suits tiled bathroom and kitchen floors
- Simple wiring compared to WiFi-enabled thermostat kits
Cons
- No app or scheduling — thermostat is manual dial only
#9 Pick
Electric Underfloor Heating Mat Kit 1/m² - 150W/m² with White Wi-Fi Colour Touch Screen Thermostat- 150W
- WiFi
Currently unavailable
Pros
- WiFi colour touchscreen thermostat allows app control and scheduling
- Same 150W/m² heat output as the manual version for consistent warmth
- White thermostat finish blends into most bathroom walls
Cons
- Costs noticeably more than the manual-thermostat version of the same mat
At a glance
- Products
- 9
- Price range
- £45.98–£331.99
- Average price
- £191.10
- Average rating
- 4.32 / 5
- Total reviews
- 1,132
- Top brand
- ProWarm (2)
- Price tier split
- Budget0Mid-range4Premium5
- In stock
- 5
This 150W Underfloor Heating system is designed to provide efficient and consistent warmth throughout your home via a discreet, low-profile installation. Ideal for smaller rooms or areas where you need targeted heating, this system offers precise temperature control and can be integrated into various floor coverings including laminate, vinyl, and wood. Careful planning of the tubing layout is crucial for optimal performance, so consider the room size and heat loss when designing your underfloor circuit.
FAQ
What type of flooring works best with a 150W system?
Laminate, vinyl, and wood floors are generally suitable. However, thicker carpets will significantly reduce the heating efficiency, so it’s recommended to use a thinner floor covering for optimal performance.
How do I calculate the tubing length needed for a 150W system?
You'll need to assess your room's heat loss. A general rule is around 10m of tubing per 150W, but factors like insulation and window size will greatly affect this; consult a heating calculator for accurate figures.
Can I connect multiple 150W systems together?
Yes, you can cascade multiple 150W systems to heat larger areas. However, ensure the total power output doesn't exceed the circuit breaker’s rating and carefully plan tubing runs for consistent heat distribution.
What is the typical installation time for a 150W system?
Installation can take anywhere from 3-8 hours depending on the room size and complexity of the layout. Professional installation is recommended to ensure correct setup and avoid potential issues with water leaks.
Does this kit include all necessary fittings?
Typically, a 150W system includes tubing, connectors, flow sensor, and a thermostat. However, you'll need to source additional components like a manifold and manifolds are often sold separately – check the product details carefully.
What temperature can I set the thermostat to?
The thermostat typically allows settings between 5°C and 25°C, providing flexibility for personal comfort. However, exceeding these limits can impact efficiency and may void some manufacturer warranties.
How does the flow sensor work?
The flow sensor monitors water circulation in the tubing, preventing overheating and protecting the system. If the flow stops, it cuts off the heat output to prevent damage and ensure efficient operation.
What kind of pipe sealant should I use?
Use a food-grade silicone sealant specifically designed for underfloor heating systems to create a watertight seal between tubing connections. Avoid using other sealants as they may leach harmful chemicals into the water.
How do I troubleshoot if my floor isn’t getting warm?
Check that the flow sensor is functioning correctly, the thermostat settings are appropriate for the room size and insulation levels, and ensure there are no kinks or obstructions in the tubing runs.
What is the warranty on a 150W system?
The warranty period will vary depending on the manufacturer. Refer to the product details on Amazon UK for specific warranty information regarding parts and labour – Amazon’s standard returns policy applies.