ThermoSphere Ultimate Underfloor Heating Cable

Next-generation electric underfloor heating cable designed for professional and domestic installations.
Innovative In-Line Joint keeps a consistent 4mm cable profile with no bulky connection points.
No need to cut into insulation boards or subfloors, helping maintain waterproofing integrity.
TwistedTwin™ construction reduces stress and prevents cable memory for easier handling and smoother installation.
Flexible cable design stays flat during installation for a faster, cleaner finish.
Compatible with all major decoupling membrane systems for maximum installation flexibility.
Dual heat output options: approx. 195W/m² (2-stud spacing) or 130W/m² (3-stud spacing).
IP68 waterproof rating makes it safe for bathrooms, showers, and wet rooms.
Consistent 4.0mm diameter helps avoid floor-level variations and levelling issues.
230V dual-core cable engineered for reliable long-term performance.
Lifetime manufacturer’s guarantee for complete peace of mind.
Designed to deliver efficient, comfortable radiant heat for energy-conscious heating systems.

Cable Diameter	4.0mm (consistent profile)
Internal Construction	TwistedTwin™ dual core
Voltage	230V
Waterproof Rating	IP68
Warranty	Lifetime manufacturer’s guarantee

Electric Underfloor Heating Cable ThermoSphere Ultimate 61 LM