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Warmup AL-PE-RT pipe


The PE-RT/AL/PE-RT pipe is a 5 layer composite pipe, incorporating layers of PE-RT and adhesives, encasing an aluminium core.

Key benefits


Oxygen barrier

The aluminium core prevents oxygen entering the system via the pipework.


Easy to lay

AL/PE-RT can hold and maintain its shape, when formed by hand.


Corrosion free

The coatings stop oxygen from entering via the pipework minimising the risk of corrosion to the system.

Nexxa panel hydronic underfloor heating

Aluminium Core

The aluminium core acts as the oxygen barrier, preventing corrosion within the heating system from oxygen that would otherwise enter via the pipework. The aluminium core also allows the pipe to be positioned and shaped by hand, to maintain this shape.

This means that the pipe requires less overall securing to the subfloor or insulation and is less prone to sagging where it is unsecured.



50 Years Limited Warranty

Technical Information

Product Documentation
Techincal Specifications
Pipe Range nominal dimensions 16mm OD x 12mm ID x 2.0mm wall thickness
Colour White
Coil sizes 16mm x 2mm – 100m, 200m, 500m
Operating Temperature Peak 70 oC
Maximum Temporary Peak Temperature 95 oC
Maximum Operating pressure 10.0 bar
Construction 5 layer: PE-RT – adhesive – aluminium – adhesive – PE-RT
Manufacturing EN ISO 21003 (application class 4)
Quality Assurance ISO 9001

Mechanical Properties
Composition Inner pipe PE-RT
Pipe roughness 0.007 mm/m
Bending radius 5 x outside diameter minimum
Water capacity 16mm – 0.133 l/m

Thermal Properties
Thermal conductivity  0.45 W/m K
Thermal expansion coefficient 0.026 mm/m K

Installing this product? You will also need:

hydronic underfloor heating manifold


Our Manifold is manufactured from stainless steel and provides water regulation for up to 12 underfloor heating circuits.

hydronic underfloor heating control centre

Control Center

All hydronic systems require a control centre that works with the thermostats and heat source, such as a boiler or heat pump.

3ie energy monitoring thermostat


Choosing the correct control system is crucial in ensuring that your heating system works in the most efficient way.

Get A Quote

Get a Free Quote and Order Online Today

Use our online quoting tool to find the best hydro underfloor heating system for your project and purchase it directly from Warmup.

Quoting Tools: instant, accurate, flexible

Warmup offers an extensive range of electric and water floor systems compatible with all floor types, rooms and projects.

Electric Systems

  • ✓ Ideal for zones less than 25m²
  • ✓ Ideal for single rooms
  • ✓ Does not alter floor levels
  • ✓ Great for renovations

Electric Systems Quote
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Water Systems

  • ✓ Ideal for larger zones over 25m²
  • ✓ Rapid auto heat loss calculations
  • ✓ Compatible with existing central heating systems
  • ✓ Great for new-builds

Water Systems Quote & Buy
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Projects Division Consultation

  • ✓ Bespoke heating solutions for new-build projects and larger renovations
  • ✓ Dedicated team to work with you
  • ✓ World-class expertise in R&D, building regulations and energy performance
  • ✓ Detailed system layouts for each stage of the project

Get In Touch with Warmup’s Projects Division
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For areas of 24m2 or more, use our full quoting system
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