The Premium Choice in Underfloor Heating

The Premium Choice in Underfloor Heating

Corrugated stainless steel tube engineered for superior heat transfer, lifetime durability, and effortless installation.

Why Corrugated Stainless Steel?

Faster Heat Transfer

Corrugated stainless steel conducts heat up to 40x more efficiently than plastic alternatives.

100% Recyclable

316L stainless steel is fully recyclable at end of life — zero waste to landfill.

Lifetime Durability

Corrosion-resistant 316L grade stainless steel backed by a 50-year warranty.

Lower Flow Temperatures

Ideal for heat pumps — achieves target output at lower water temperatures than PEX.

Flexible Installation

Corrugated design bends easily without kinking — no special tools required.

Corrugated stainless steel tube detail

Material Comparison

Ridgeline CSS

16 W/mK Thermal Conductivity
50+ Years Lifespan
100% Recyclability
Inherent Oxygen Barrier

Standard PEX

0.4 W/mK Thermal Conductivity
25 Years Lifespan
Limited Recyclability
Added Layer Oxygen Barrier

Premium Quality

316L corrugated stainless steel engineered for lasting performance.

Easy Installation

Flexible corrugated design bends without tools or fittings.

Energy Efficient

Superior thermal conductivity means lower running costs.

Full Technical Support

Expert guidance from specification through to installation.

50 Year Warranty
24hr Free Delivery
316L Stainless Steel
100% Recyclable
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What Installers Say

"The corrugated stainless steel tube is a game changer. Faster to install and the heat output is noticeably better than PEX."

James M.

Heating Engineer

"Excellent product quality and next-day delivery. The tube bends beautifully and the fittings are precision-made."

Sarah T.

Plumbing Contractor

"We've switched all our UFH projects to Ridgeline. The 50-year warranty gives our customers real peace of mind."

David R.

Mechanical & Electrical Contractor