Best Underfloor Heating — 300W + Premium (2026)
1 underfloor heating matching power “300W” + price tier “Premium”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Underfloor Heating UK (2026) guide.
#1 Pick
Warmup Underfloor Heating System DWS300, 1.5-2.4 Sq/Mtr, 300WRated 4.4 out of 5 stars (65)
- 300W
£107.99
Pros
- Established UK underfloor heating brand with strong warranty support
- Compact 1.5-2.4m² coverage suits en-suites and small bathrooms
- Thin cable profile keeps floor build-up to a minimum
Cons
- Thermostat sold separately
- Smaller coverage than the larger Warmup kits