Lifetime guarantee included

Wunda's high quality, premium multi-layered 16mm HDPE-AL-PEX floor heating pipe with full approvals.

Ideal for use in UNDERFLOOR screed systems.


Discount bulk-buy pallets also available only 49p per metre - save even more money!

Single coil price equivalent to 53p per metre.

More details

£ 53.00 + VAT

+ -

Availability: IN STOCK

Product Options  -  RESET OPTIONS
Single / Bulk
Bulk x 7
Bulk x 10
Bulk x 15
Bulk x 19
Bulk x 24

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More info

Crosslinked polyethylene PE-X internal layer, internal bonding layer, intermediate aluminium layer, external bonding layer, high density polyethylene HDPE external layer. We would not recommend using HDPE-AL-PEX pipe in our Overfloor boards -due to being stiffer than PERT-AL-PERT . PER-AL-PERT is a more flexible pipe that has no 'spring-back', will hold it's shape on bends and will be a lot easier to install.

Wunda's thermally dynamic 16mm HDPE-AL-PEX pipe has an aluminium core that produces a higher heat output than ordinary Pex and Polybutylene pipe and is easy to use.

HDPE-AL-PEX pipe is stiffer than a PERT-AL-PERT pipe and is not suitable for use in Overfloor heating systems that require tight bends and close pipe spacing.

It is easy to shape by hand and stays where it's put with minimal spring back. Our pipe is 100% oxygen tight and leak proof. Wunda pipe comes with a WUNDA LIFETIME guarantee.

  • Ideal for screed floor heating systems
  • National Decleration of Conformity
  • Aluminium core
  • Higher output than plastic pipe
  • Leak proof pipe
  • Very low expansion and contraction, just 5cm in 100 linear metres which is similar to copper (Ordinary plastic pipe has an expansion/contraction rate of approximately 50cm in 100 linear metres)
  • 100% oxygen tight (oxygen ingress can rot boilers) - ordinary pipe is normally only 80%
  • Easy to shape by hand- easy to fit, stays where it's put with minimal spring back
  • Detectable under the floor
  • AENOR certificated
  • DIN 4726
  • ISO 9001

Please note the following quantities of coils when buying in Bulk:-

  • 80m - Bulk x 24 coils
  • 100m - Bulk x 19 coils
  • 120m - Bulk x 15 coils
  • 250m - Bulk x 10 coils
  • 500m - Bulk x 7 coils
Data sheet
  • Guaranteed for: LIFETIME
  • Length: 80m / 100m / 120m / 250m / 500m
  • Size: 16mm
  • Colour: White
  • Material: Aluminium, HDPE & PEX
  • Maximum Pipe Loop Length: 100mtrs per loop
  • Pipe Dimensions [mm]: 16 x 2.0
  • Outside Diameter [mm]: 16
  • Thickness of wall [mm]: 2.0
  • Inner Diameter [mm]: 12
  • Water capacity of pipe [l/m]: 0.113
  • Absolute Roughness [mm]: 0.007
  • Thermal Conductivity [W/Mk]: 0.45
  • Coefficient of thermal expansion [mm/Mk]: 0.025
  • Maximum operating temperature [°C] short term: 110
  • Design Pressure [bar]: 6

Delivery Charges

*All prices exclude VAT. All deliveries subject to road and weather conditions. Some remote areas are delivered on a 48 hour service. Excludes Bank Holidays. We can deliver anywhere in the UK and Internationally, for specific delivery enquiries not covered on this website please call for latest prices and delivery timescales.

Please click here for full Delivery & Returns information.

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